JP2007335065A - Disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk apparatus wherein disks having different diametrical dimensions can appropriately and surely be carried in. <P>SOLUTION: The disk apparatus has a housing having an opening into and from which a disk is inserted and extracted and a carrying means of carrying the disk in the housing. First and second disks are available as the disk. The opening has a size corresponding to the first disk and the carrying means has a pair of arms 61L and 61R disposed in a substantially symmetrical relationship with respect to the carrying direction of the disk in the proximity of both ends of the opening such that the arms pivot around end portions on the opening side in synchronism with each other in directions toward and away from each other, and a biasing element which biases the arms in a direction in which ends of the arms remote from the opening approach each other. Rollers 61L6 and 61R6 carrying the abutting disk are provided at the ends of the arms on the opposite sides. The arms have opening-side ends disposed nearby the opening and the distance between the rollers is smaller than the diametrical size of the second disk until the second disk contacts with the rollers. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a disk device.

  Conventionally, there has been known a disk device that reads information recorded on a disk such as a CD (Compact Disc), a DVD (Digital Versatile Disc), and a BD (BLU-RAY DISC: registered trademark) and records information on the disk. It has been. Such a disk device has a turntable that comes into contact with the disk and irradiates a light spot onto the information recording surface of the rotating disk and a motor as a driving means for rotating the disk via the turntable. A pickup is provided as information reading / recording means for reading and recording information.

As such a disk device, there are known a tray type disk device and a slot-in type disk device having different disk loading mechanisms into the disk device.
The tray type disk device includes a tray on which the disk is placed, and the disk is transported into and out of the disk device by projecting and retracting the tray from the apparatus main body.
Also, in the slot-in type disk device, a disk inserted from a disk storage opening formed in the disk device housing according to the disk size is carried into the device.

Among these, as a slot-in type disk device, a disk device having an arm for conveying a disk is known (see, for example, Patent Document 1).
In the disk device described in Patent Document 1, two sliders that slide in a direction in which a disk is inserted into the opening and in a direction perpendicular to the insertion direction are provided in the vicinity of an opening for storing a disk (disk insertion / removal opening). Each slider is provided with an arm having two rotating rollers at both ends in an inclined state with respect to the disk insertion direction. Each of these arms is provided so as to be rotatable in a direction in which the tip portions approach and separate from each other around the roller axis on the opening side.

In the disk device described in Patent Document 1, when the disk inserted from the opening is carried in, the edge of the disk contacts a roller provided on the opening side of each arm. At this time, the two sliders slide in a direction away from each other according to the diameter of the disk, and each arm provided in each slider moves in a direction in which the end opposite to the opening side is away from each other. Rotate while retracting the disc. Then, each slider slides in the disc insertion direction with the roller of the arm holding the disc, whereby the disc is housed inside the apparatus.
On the other hand, when the disc is carried out, the roller, the arm and the slider operate in the opposite direction to the loading of the disc. Then, the disc is ejected by pushing it out from the opening.
With such a configuration, the disk device described in Patent Document 1 can appropriately carry in and carry out disks having different diameters.

JP 2005-251362 A

However, in the disk device described in Patent Document 1, when a disk having a small diameter (for example, a disk having a diameter of 8 cm) is inserted near the end of the disk storage opening, the disk is appropriately inserted. There is a possibility that it cannot be transported.
That is, when a disk with a small diameter is inserted in the approximate center of a disk storage opening formed according to a disk with a large diameter (for example, a disk having a diameter of 12 cm), The provided slider moves in the direction approaching the disk, and the rollers of the arms rotate while gripping the disk, thereby conveying the disk into the apparatus. However, if a disk having a small diameter is inserted near the end of the opening, the disk may be carried into the apparatus while being held by one roller. In such a case, there is a possibility that the disk cannot be arranged at the chucking position of the disk by the turntable, and that the disk is not properly chucked.

  An object of the present invention is to provide a disk device capable of appropriately and reliably carrying disks having different diameters.

  In order to achieve the above-described object, the disk device of the present invention includes a housing having an opening through which a first disk and a second disk having a diameter smaller than that of the first disk are inserted and removed, and is inserted into the opening. Further, at least one of transport means for carrying the disk into the housing, drive means for rotating the loaded disk, reading information recorded on the rotating disk, and recording information on the disk And an information reading / recording means for performing the reading, wherein the opening is formed to have a size corresponding to the first disk, and the conveying means is located near both ends of the opening. The first direction and each other are arranged symmetrically with respect to the conveying direction of each of the two, and are close to each other in synchronization with the end on the opening side as a center. A pair of arms that rotate in a second direction, and a biasing means that biases the pair of arms in a direction close to the opening, and an end on the opening side of each arm is Each of the arms is provided with a roller that conveys the disk, and the distance between the rollers is such that the second disk contacts the rollers until the second disk contacts the rollers. It is characterized by being smaller than the diameter dimension.

Here, the predetermined position can be a position corresponding to the rotating means, for example.
Further, the rotating means can be exemplified by a motor having a turntable that contacts the disk and rotates the disk. As the information reading / recording means, the rotating disk is irradiated with a light spot and the disk is rotated. As an example, a pickup that reads or records information on the camera can be exemplified.
Note that the term “conveyance” refers to carrying into the casing and carrying out the casing.

According to the present invention, even when a second disk having a small diameter is inserted at a position near the end of the opening formed in the housing, the second disk can be appropriately transported into the housing. Can do.
That is, a pair of arms that constitute a conveying means provided in the housing, abut against a disk inserted into the opening, and have a roller for conveying the disk, are mutually centered around the end on the opening side. It rotates in synchronism with the adjacent first direction or the separated second direction. Here, these arms are arranged substantially symmetrically with respect to the disc transport direction, and the distance between the rollers provided on each arm is such that the second disc contacts the respective rollers provided on each arm. Is smaller than the diameter of the second disk. Further, the pair of arms are urged by the urging means in a direction in which the end portions on the side where the roller is provided are close to each other.

  According to this, when a first disk having substantially the same dimensions as the opening is inserted into the opening, the first disk comes into contact with each roller provided on each arm. Then, in the process in which each roller rotates and the first disk is conveyed, the pair of arms rotate in a second direction in which they are separated from each other in synchronization. Here, since the pair of arms are urged by the urging means in the direction in which the end opposite to the opening side approaches, the distance between the rollers in the pair of arms is the first disk. It is restricted to spread more than the diameter dimension (diameter dimension). As a result, the first disk can be carried into the housing with the first disk positioned substantially at the center of the pair of arms.

  Further, even when a second disk having a diameter smaller than that of the first disk is inserted in the approximate center of the opening, the distance between the rollers is such that the second disk is in contact with each roller until the second disk comes into contact with the rollers. Since it is smaller than the diameter dimension (diameter dimension), the second disk reliably comes into contact with the rollers of the pair of arms provided substantially symmetrical to each other. Furthermore, as described above, since the urging force by the urging means acts on the pair of arms, the distance between the rollers is restricted from being larger than the diameter of the second disk. As a result, as in the case of the first disk described above, the second disk can be carried into the housing with the second disk positioned at the approximate center of the pair of arms.

  On the other hand, when the second disk is inserted at a position near the end of the opening, the second disk is placed on the roller provided on the arm on the side where the second disk is inserted out of the pair of arms. The edges of the abut. Here, since the roller applies a rotational force to the second disk when the second disk is carried into the housing, the second disk moves toward the other arm while moving toward the center of the opening. Carried in close proximity. Also in this case, the distance between the rollers is smaller than the diameter of the second disk, and an urging force acts on the arm having the roller in contact with the disk in a direction approaching the other arm. Therefore, the arm having the roller does not rotate in the second direction away from the other arm until the disk comes into contact with the roller of the other arm and the disk is loaded by each roller. For this reason, the second disk surely comes into contact with the rollers of the pair of arms provided substantially symmetrically, and the second disk is carried in a state of being centered at the center of each arm.

Further, even when the user pushes the second disk into the opening and the arm on the side contacting the edge of the second disk is pushed away in the direction away from the other arm, the biasing means The pair of arms are biased in a direction in which the ends on the side opposite to the opening of the pair of arms are close to each other, so that the rollers that are in contact with the second disk inserted in the opening In the carrying-in process, the arm provided with the roller and the other arm rotate in the first direction in which they are close to each other. For this reason, the arm having a roller that contacts the second disk rotates in the first direction while pushing the second disk so as to be positioned at the center between the arms, and sandwiches the second disk with each roller together with the other arm. Carry it in.
As a result, in the process of loading the second disk, the distance between the rollers does not extend beyond the diameter of the second disk, so that the second disk is securely brought into contact with the rollers provided on the respective arms. The second disk can be carried into the housing by the rollers.

  As described above, not only the first disk having the same diameter as the opening but also the second disk having a smaller diameter than the first disk is inserted into the opening. Therefore, the moving direction of the center of the disk conveyed by the conveying means can be made substantially the same as the inserting direction of the disk at the center of the opening. Accordingly, the disk can be appropriately carried into the housing, and the disk can be appropriately disposed at the position where the driving means is provided.

  In the present invention, at least one of the pair of arms is rotatably provided with a lever member that abuts on the disk inserted into the opening and biases the disk toward the other arm. It is preferable.

  According to the present invention, when the second disk is inserted near the end of the opening, the lever member provided on one arm contacts the second disk, and the second disk is moved to the other disk. Energize to move to the arm side. According to this, the second disk moves from a position near the end of the opening to a position near the center of each arm, and is provided not only on the roller provided on one arm but also on the other arm. The second disk also comes into contact with the roller. Accordingly, the second disk can be carried in by these rollers. Therefore, the disc can be more appropriately carried into the housing regardless of the position of the opening into which the disc is inserted.

  In this invention, it is preferable that the said lever member is provided in the position near the edge part by the side of the said opening part in the said arm in which the said lever member was provided.

  According to the present invention, since the lever member is provided at a position near the end of the arm on the opening side, the second disk inserted at a position near the end of the opening can be securely attached to the lever member. Thus, the second disk can be pushed out to the center between the arms. Therefore, the second disk inserted near the end of the opening can be moved more reliably to the center between the arms, and brought into contact with the rollers provided on the pair of arms, Each of the rollers can be appropriately loaded.

  In the present invention, when the second disk is inserted in the vicinity of the end of the opening, the housing moves in the second direction of the arm on the side opposite to the side where the second disk is inserted. It is preferable to provide a rotation restricting portion that restricts the rotation of the.

  According to the present invention, when the second disk is inserted in the vicinity of the end of the opening, the arm on the side opposite to the side on which the second disk is inserted is provided by the rotation restricting portion provided in the housing. However, since the rotation in the second direction is restricted, it is possible to reliably prevent the distance between the rollers of each arm from being larger than the radial dimension of the second disk. Therefore, the second disk can be reliably and appropriately carried into the housing regardless of the insertion position of the second disk into the opening.

  In the present invention, the lever member includes a restricting portion that abuts on the arm and restricts the rotation of the arm, and the rotation restricting portion rotates the lever member provided on the opposite arm. It is preferable to restrict the rotation of the pair of arms by restricting the movement.

According to the present invention, when the second disk is inserted in the vicinity of the end of the opening corresponding to the side opposite to the arm side on which the lever member is provided, the lever is controlled by the rotation restricting portion of the housing. The rotation of the member is restricted. And the rotation of the other arm is restricted by the restricting portion of the lever member, and accordingly, the rotation of one arm is restricted.
For example, when the second disk is inserted near the end of the opening and a lever member is provided on one arm arranged on the end, the lever member is attached to the second disk. It abuts and rotates in a direction away from the opening independently of the rotation of the one arm.
On the other hand, the lever member provided on the other arm disposed on the side opposite to the end does not contact the second disk. For this reason, the lever member does not rotate independently of the other arm.

When the second disk is in contact with the roller of one arm and each arm rotates in the second direction away from each other, the movement trajectory of each lever member is different. The rotation of the lever member is not restricted, but the rotation of the lever member provided on the other arm is restricted by the rotation restricting portion. For this reason, the restricting portion of the lever member restricts the rotation of the other arm in the second direction, and consequently restricts the rotation of one arm in the second direction.
According to this, if the lever member is provided on the arm on the side opposite to the side where the second disk is inserted, the rotation restricting portion of the housing and the restricting portion of the lever member respectively The rotation in two directions can be reliably controlled. Therefore, when the second disk is inserted near the end of the opening, it is possible to reliably prevent the second disk from being carried to an inappropriate position in the disk device by one arm. .

  In the present invention, the roller is provided at the end of each arm opposite to the opening, and each arm has another roller having substantially the same configuration as the roller with respect to the roller. It is preferable that they are rotatably provided at a predetermined interval.

Here, examples of the arrangement position of the other rollers may include substantially the center position between the end portion on the opening portion side serving as the rotation axis of the arm and the end portion provided with the roller.
According to the present invention, since each arm is provided with a plurality of rollers, even when the second disk is inserted near the end of the opening, the edge of the second disk is placed on the roller. It can be made to contact easily. That is, by arranging each arm substantially symmetrically so that the end on the opposite side to the opening side is close, other arms provided at predetermined intervals from the roller on the opposite side The second disk inserted at a position near the end of the opening is easily brought into contact with the roller. Then, each roller provided on one arm rotates in the same direction, so that the other roller with which the second disk is in contact with the inner side of the housing from the other roller (the front side in the disk loading direction). ), The second disk can be carried into the housing while being positioned substantially at the center of each arm.

  In the present invention, the pair of arms includes a straight line connecting the roller and the other roller provided on one arm of the pair of arms, and the roller and the other provided on the other arm. It is preferable that the straight lines connecting the rollers are arranged so as to be substantially orthogonal.

Here, when the crossing angle between the straight line connecting the rollers of one arm and the straight line connecting the rollers of the other arm is larger than 90 °, the disk is brought into contact with the roller provided in each arm. However, since the disk and the roller come into contact with each other at a position close to the opening, it is necessary to increase the pull-in force of the disk of the roller. Since they are separated at an early stage, the amount of the disk drawn by the roller is reduced. For this reason, the disk may not be properly carried into a predetermined position in the housing (for example, an engagement position between the disk and the driving unit).
On the other hand, when the crossing angle is smaller than 90 ° and the roller is provided in the vicinity of the end of the arm on the side opposite to the opening, it is necessary to insert the disk deeper into the opening. And the disk is difficult to contact the roller. In addition, when the roller is provided in the vicinity of the end on the opening side, the amount of the disk drawn by the roller becomes small as in the case where the crossing angle is larger than 90 °, and the disc is properly inserted. There are cases where it cannot be carried into a predetermined position in the housing.

  On the other hand, in the present invention, by setting the crossing angle to approximately 90 °, the edge of the disk can be easily brought into contact with the roller, and the roller of each arm is perpendicular to the disk insertion direction. Since the vicinity of the end of each of the rollers is gripped, the pulling force of the disk when each of the rollers abuts on the disk can be increased. Further, the edge of the disk is sequentially held by each of the roller provided at the center of each arm and the roller provided at the end opposite to the opening side, and each of the rollers rotates, Since the arm can rotate in the second direction, the amount of the disk pulled in can be increased, so that the disk can be appropriately transported to a predetermined position in the housing. Therefore, the disk can be carried into the housing more reliably and appropriately.

  In the present invention, the conveying means includes a link that rotates the other arm in a direction opposite to the rotation direction of the one arm in accordance with the rotation operation of one arm of the pair of arms. It is preferable to provide.

  According to the present invention, the links can not only easily synchronize when the arms rotate in the directions approaching and separating from each other, but also the amount of rotation of each arm can be made substantially the same. Therefore, each arm can be synchronized and rotated with substantially the same amount of rotation, so that the disk can be conveyed appropriately and reliably along the insertion direction of the disk from the approximate center of the opening.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings.
(1) Appearance Configuration of Disk Device 1 FIG. 1 is a perspective view showing the appearance of the disk device 1 according to the present embodiment. FIG. 2 is an exploded perspective view of the disk device 1.
The disk device 1 according to the present embodiment accommodates a disk such as a CD, a DVD, and a BD (BLU-RAY DISC: registered trademark) inside, reads information recorded on the disk, and records information on the disk. It is a slot-in type disk device that performs the above. The disk device 1 can store a first disk D1 and a second disk D2 having a diameter smaller than that of the first disk D1 as the disk D. Each of the first disk D1 and the second disk D2 can store the disk D. On the other hand, the information can be read and recorded. As the first disk D1, a disk having a diameter of 12 cm can be exemplified, and as the second disk D2, a disk having a diameter of 8 cm can be exemplified.
As shown in FIGS. 1 and 2, the disk device 1 includes a device main body 2 that houses the disk D, and a cover member 9 that covers the device main body 2.

2, the cover member 9 includes a top cover 91, a bottom cover 92, and a front cover 93 that respectively cover the upper surface portion, the bottom surface portion, and the front surface portion of the apparatus main body 2. Is covered with a cover member 9. Such a cover member 9 is made of metal in order to prevent electromagnetic interference (EMI).
Of these, the front cover 93 is not shown in detail, but has substantially the same dimensions as the opening 2A at a position corresponding to a disk housing opening 2A formed by a top frame 701 and a bracket 63 described later. An opening is formed. A cloth curtain 931 having a cut for inserting and removing the disk D is attached to the front cover 93 at a position corresponding to the opening. Such a cloth curtain 931 can be formed of felt or the like.

(2) Device body 2
When the disk D is inserted into the opening 2A for storing the disk, the apparatus main body 2 carries the disk D in and stores it, and reads and records information on the disk D. Further, when a switch (not shown) is input by the user, the apparatus main body 2 carries out the disk D accommodated therein from the opening 2A to the outside.
As shown in FIG. 2, the apparatus body 2 includes a control unit 3, an optical unit 4, a lower unit 5, a transport unit 6, and an upper unit 7.
Among these, the control unit 3 is configured as a circuit board that controls driving of the apparatus main body 2. The configuration of the control unit 3 will be described in detail later.

(3) Optical unit 4
FIG. 3 is a perspective view showing the optical unit 4.
The optical unit 4 is attached to a holder 52 disposed substantially at the center of a base frame 51 that constitutes the lower unit 5 described later, and the disc D is raised by raising the holder 52 as the disc D is carried into the apparatus main body 2. Engage with. The optical unit 4 reads the information recorded on the disk D and records the information on the disk D by irradiating the disk D stored in the apparatus main body 2 with laser light.

As shown in FIG. 3, the optical unit 4 includes a motor 41 that rotates the disk D, a pickup 42, a motor 43 that moves the pickup 42, and a pair of guides that guide the movement of the pickup 42 by the motor 43. A guide 44 and a control board 45 that controls driving of the motors 41 and 43 and the pickup 42 are provided.
The motor 41 corresponds to the driving means of the present invention, and is a turntable that is fitted into a circular hole DC (see FIG. 48, FIG. 62, etc.) formed in the approximate center of the disk D as the holder 52 is raised. The disk D is rotated at a high speed by rotating the turntable 411. The turntable 411 sandwiches the disk D together with a chuck pulley 710 constituting the upper unit 7 described later.
The pickup 42 corresponds to the information reading / recording means of the present invention. The pickup 42 records information by irradiating a laser beam to the disk D rotated by driving the motor 41 and receives reflected light from the disk D. Then, the information recorded on the disk D is read.

The motor 43 includes a spindle 431 in which a spiral groove is formed along the axial direction, and a drive unit 432 that rotates the spindle 431. When one end of the pickup 42 is engaged with the spiral groove of the spindle 431 and the drive unit 432 rotates the spindle 431, the pickup 42 moves closer to the motor 41 along with the rotation of the spindle 431 and the motor 41. Move away from 41. The moving direction of the pickup 42 is set in a direction along the radial direction of the rotating disk D. The movement of the pickup 42 is guided by a pair of guides 44 arranged so as to sandwich the pickup 42.
The control board 45 is electrically connected to the control unit 3 described above, and controls driving of the motor 41, the pickup 42 and the motor 43 based on a control signal input from the control unit 3. Further, the control board 45 outputs information read from the disk D by the pickup 42 to the control unit 3.

(4) Lower unit 5
4 to 6 are diagrams showing the lower unit 5. Specifically, FIG. 4 is a perspective view of the lower unit 5 as viewed from above, and FIG. 5 is an exploded perspective view of the lower unit 5. FIG. 6 is an enlarged plan view showing a part of the lower unit 5.
The lower unit 5 is a unit serving as a base on which the above-described optical unit 4 is placed and a transport unit 6 described later is placed.
The lower unit 5 has a substantially rectangular opening 511 in the center, and has a base frame 51 formed in a substantially rectangular shape in plan view, a holder 52 placed on the base frame 51, a motor 53, and a motor 53. A control board 54 for controlling driving (not shown in FIG. 5), a transmission mechanism 55 for transmitting the driving force of the motor 53 to a transport unit 6 (to be described later), a lifting mechanism 56 for lifting and lowering the holder 52, and another disk D when the disk is stored. Is inserted, and a shutter lever 58 that pushes up a shutter 702 (see FIGS. 16 and 17) that closes the opening 2A for storing the disk.
The configurations of the elevating mechanism 56, the insertion preventing mechanism 57, and the shutter lever 58 will be described in detail later.

(4-1) Configuration of Base Frame 51 As shown in FIGS. 4 and 5, the base frame 51 is a synthetic resin box-shaped housing formed in a substantially U-shaped longitudinal section. As described above, the opening 511 is formed substantially at the center.
Around the opening 511, a standing portion 512 is formed in a substantially rectangular shape in plan view, and rises in the out-of-plane direction from the lower surface of the base frame 51. A holder 52 having a substantially rectangular shape in plan view is formed in the standing portion 512. Placed. That is, the standing part 512 is formed along the outer edge of the holder 52 so as to substantially match the shape of the holder 52. Two notches 5121 are formed at substantially the center of the two long sides (sides along the direction in which the disc D is inserted) of the upright portion 512. A cylindrical portion 5221 of the holder 52 described later is inserted into these notches 5121.

Further, the base frame 51 is formed with a transmission mechanism arrangement portion 513 in which the transmission mechanism 55 and the conveyance unit 6 are arranged in a portion from the opening 2 </ b> A to the standing portion 512 in the base frame 51.
Although not shown in detail in the transmission mechanism arrangement portion 513, a plurality of protrusions and the like that rotatably support the gears constituting the transmission mechanism 55 are formed, and a spring that biases the holder 52 downward. A plate 5131 (see FIG. 6), a motor installation portion 5132 (see FIG. 5) where the motor 53 is disposed, and a substrate attachment portion 5133 (see FIG. 5) to which the control substrate 54 is attached are provided. Further, three screw holes 5134 (see FIGS. 4 and 6) to which the transport unit 6 is attached are formed in the vicinity of the end of the base frame 51 on the opening 2A side and substantially at the center.
Further, cam arrangement portions 514L and 514R in which slide cams 56L and 56R constituting an elevating mechanism 56 described later are slidably arranged on the left and right sides of the standing portion 512 when the opening 2A side of the base frame 51 is facing forward. Is formed.

FIG. 7 is a view showing the bottom surface of the base frame 51.
On the bottom surface of the base frame 51 (the surface facing the bottom cover 92; see FIG. 2), as shown in FIG. 7, a link arm 561 constituting the lifting mechanism 56 is attached to the side opposite to the opening 2A side. A link arm placement portion 515 is formed.
A screw hole 5151 into which a screw (not shown) that rotatably supports the link arm 561 is screwed is formed at the approximate center of the link arm arrangement portion 515, and left and right of the link arm arrangement portion 515. Arc-shaped openings 515L and 515R with the screw hole 5151 as the center are formed. The cylindrical portions 561L and 561R provided on the link arm 561 are inserted into the openings 515L and 515R, respectively.
The link arm 561 will be described in detail later together with the description of the lifting mechanism 56.

(4-2) Configuration of Holder 52 The holder 52 holds and fixes the optical unit 4 as described above.
As shown in FIG. 4, the holder 52 moves up and down as slide cams 56L and 56R, which will be described later, slide in the opposite directions in the horizontal direction, and constitutes the optical unit 4 placed on the holder 52. This is a metal box-like member for fitting the turntable 411 of the motor 41 to the hole DC (see FIG. 48) of the disk D and releasing the fitting.
As shown in FIG. 5, the holder 52 includes a bottom portion 521 having a substantially rectangular shape in plan view, and an upright portion 522 that stands up from the bottom portion 521 along an edge of the bottom portion 521. The longitudinal direction of the bottom portion 521 is a direction along the longitudinal direction of the upright portion 512 formed on the base frame 51, and the longitudinal direction is a direction along the insertion direction of the disk D.

  Screw holes 5211 are formed at the four corners of the bottom 521, and screws (not shown) for fixing the optical unit 4 are screwed into the screw holes 5211. Thereby, the optical unit 4 is fixed to the holder 52. In addition, an opening 5212 is formed substantially at the center of the bottom 521. The opening 5212 is formed as a space for the pickup 42 of the optical unit 4 to move.

  Cylindrical portions 5221 projecting from the side surfaces in the out-of-plane direction, that is, toward the outside of the holder 52, are provided on both side surfaces in the longitudinal direction of the standing portion 522 (each surface facing slide cams 56 </ b> L and 56 </ b> R described later). It is formed in the vicinity of both ends in the longitudinal direction of both side surfaces. These four cylindrical portions 5221 are inserted through the notches 5121 formed in the standing portions 512 of the base frame 51 described above, and engage with slide cams 56L and 56R described later. For this reason, the holder 52 is allowed to move in the vertical direction, but is restricted from moving in the horizontal direction. The size of the cylindrical portion 5221 is set to be slightly smaller than the notch 5121.

Further, on both side surfaces of the standing portion 522 in the short direction (direction orthogonal to the longitudinal direction), flat plate-like extending portions 5222 and 5223 extending in a direction protruding from the holder 52 are formed.
Among these, when the holder 52 is fixed to the base frame 51, the extension portion 5222 formed on the side surface close to the opening 2 </ b> A is provided in the transmission mechanism arrangement portion 513 of the base frame 51. The spring plate 5131 contacts. In addition, two extension portions 5223 formed on the side surface opposite to the side surface on which the extension portion 5222 is formed are formed on the side surface, and each extension portion 5223 is provided on the base frame 51. A tension spring (not shown) is attached. The holder 52 is biased and held on the bottom surface side of the base frame 51 by the spring plate 5131 (see FIG. 6) and the tension spring.

(4-3) Configuration of Motor 53 The motor 53 is installed in the motor installation unit 5132 formed in the transmission mechanism arrangement unit 513, and transports (carrying in and out) the disc D in the disc device 1, raising and lowering the optical unit 4, and A driving force necessary for preventing insertion of another disk D is supplied.
4 to 6, the motor 53 includes a worm gear 531 (FIG. 6), a motor main body 532 (FIGS. 4 to 6) that rotates the worm gear 531, and a bracket 533 (FIG. 4) that protects the worm gear 531. 5 and FIG. 6). Then, when the motor main body 532 rotates the worm gear 531, the rotation of the worm gear 531 is transmitted to the transmission mechanism 55 to drive the transport unit 6, the lifting mechanism 56 and the insertion prevention mechanism 57, and close the opening 2A. The shutter 702 is opened. The motor body 532 is driven according to a drive signal input from the control board 54.

(4-4) Configuration of Control Board 54 The control board 54 is attached to the board attachment portion 5133 formed in the vicinity of the motor installation portion 5132, and the motor 53 is driven according to the control signal input from the control unit 3 described above. A motor driver 545 (see FIG. 47) is provided. The control board 54 is provided with a light receiving portion 541 that detects the insertion of the disk D. The light receiving portion 541 is emitted from a light emitting portion of a photosensor 703 provided in the upper unit 7 described later. The light beam is received, and a control signal corresponding to the light receiving state of the light beam is output to the control unit 3. Specifically, the control board 54 outputs an on signal to the control unit 3 when the light receiving unit 541 receives light, and outputs an off signal when it does not receive light.

Further, as shown in FIG. 6, the control board 54 is provided with a first switch 542, a second switch 543, and a third switch 544, and the control board 54 includes the first switch 542 to the third switch 544. A control signal corresponding to the off state and the on state is output to the control unit 3.
Among these, the first switch 542 and the second switch 543 are switches that detect the transport state of the disk D by detecting the position of a front arm 61R (see FIGS. 9 to 11) that constitutes the transport unit 6 described later. It is. The first switch 542 and the second switch 543 are arranged in parallel in the left-right direction (left-right direction in FIG. 6) on the upper surface side of the control board 54. More specifically, the first switch 542 and the second switch 543 are disposed within the rotation range of the front arm 61R.

Then, when the front arm 61R rotates in a direction away from the opening 2A, the front arm 61R and the first switch 542 are brought into contact with each other, and the first switch 542 is pressed by the front arm 61R to be brought into an off state. Switch to the on state. When the front arm 61R further rotates, the front arm 61R and the second switch 543 come into contact with each other while the first switch 542 remains on, and the second switch 543 is pressed by the front arm 61R. Switch from off to on.
Conversely, when the front arm 61R rotates in the direction approaching the opening 2A, the contact state between the second switch 543 and the front arm 61R is released, and the second switch 543 switches from the on state to the off state. . When the front arm 61R further rotates, the contact state between the front arm 61R and the first switch 542 is released while the second switch 543 is in the off state, and the first switch 542 is released from the on state. Switch to off state.

The third switch 544 is a switch that detects the completion of chucking of the loaded disk D by detecting the position of a slide cam 56R (see FIGS. 33 to 36) constituting an elevating mechanism 56 described later. The third switch 544 is disposed on the control board 54 so as to protrude toward the slide cam 56R (the right side in FIG. 6), and is pressed by the slide cam 56R that slides as the disk D is conveyed.
More specifically, when the slide cam 56R slides when the disk D is carried in and chucking of the disk D by the turntable 411 of the optical unit 4 is completed, the contact state between the slide cam 56R and the third switch 544 is released. Then, the third switch 544 switches from the on state to the off state. On the other hand, when the slide cam 56R slides in the opposite direction when the disk D is unloaded and the chucking of the disk D by the turntable 411 is released, the slide cam 56R and the third switch 544 come into contact with each other, and The third switch 544 is pressed by the slide cam 56R to switch from the off state to the on state.

(4-5) Configuration of Transmission Mechanism 55 FIG. 8 is a perspective view showing the transmission mechanism 55.
The transmission mechanism 55 transmits the driving force of the motor 53 to the transport unit 6 and the lifting mechanism 56, and is composed of eight gears and one belt. Specifically, as shown in FIGS. 6 and 8, the transmission mechanism 55 includes a worm wheel 551, first to fifth gears 552 to 556, a sixth gear 558 and a seventh gear 559, a fifth gear 556, and An annular belt 557 that connects the sixth gear 558 is provided. The worm wheel 551, the first gear 552, the second gear 553, and the fourth to seventh gears 555, 556, 558, 559 are rotatably supported by protrusions formed on the transmission mechanism arrangement portion 513 of the base frame 51. Has been.

  The worm wheel 551 meshes with a worm gear 531 provided in the motor 53, and the rotation of the worm gear 531 about the direction along the transmission mechanism arrangement part 513 is used as the axis, and the direction rising from the transmission mechanism arrangement part 513 is used as the axis. Convert to rotation. The worm wheel 551 includes a first gear portion 5511 that meshes with the worm gear 531, and a second gear portion 5512 that is coaxial with the first gear portion 5511 and has a smaller diameter than the first gear portion 5511. Is formed.

The first gear 552 meshes with the second gear portion 5512 of the worm wheel 551 and also meshes with the second gear 553 and the third gear 554 to rotate the first gear 552 to the second gear 553 and the third gear. 554. The first gear 552 includes a first gear portion 5521 on one end side in the rotation axis direction of the first gear 552, and has a smaller diameter on the other end side than the first gear portion 5521. And a second gear portion (not shown).
Among these, the first gear portion 5521 meshes with each of the second gear portion 5512 and the third gear 554 of the worm wheel 551. The second gear portion meshes with the second gear 553 and transmits the rotation of the first gear 552 to the second gear 553.

The second gear 553 meshes with the first gear 552 and rotates with the rotation of the first gear 552, and a rack portion 56L11 of a slide cam 56L that constitutes an elevating mechanism 56 described later (see FIGS. 29 and 30). And the slide cam 56L is slid.
The second gear 553 includes a first gear portion 5531 formed on one end side in the rotation axis direction of the second gear 553 and a second gear portion 5532 formed on the other end side. ing. The first gear portion 5531 meshes with the first gear 552, and the second gear portion 5532 having a smaller diameter than the first gear portion 5531 meshes with the rack portion 56L11 of the slide cam 56L.

The third gear 554 and the fourth gear 555 are substantially cylindrical gears arranged so as to mesh with each other.
Among these, the third gear 554 meshes with the first gear 552 and transmits the rotation of the first gear 552 to the fourth gear 555. The third gear 554 is rotatably supported by a screw (not shown) in a screw hole 5714 (see FIG. 40) formed in a swing arm 571 that constitutes an insertion preventing mechanism 57 described later. Further, the third gear 554 is configured to be disengaged from the fourth gear 555 as the swing arm 571 rotates.

The fifth gear 556 is disposed at the corner of the base frame 51 on the opening 2A side. The fifth gear 556 meshes with the fourth gear 555, rotates with the rotation of the fourth gear 555, and transmits the rotational force to the belt 557 wound around the fifth gear 556.
Specifically, the fifth gear 556 is formed with a first gear portion 5561 and a second gear portion 5562 at both ends of the fifth gear 556 in the rotational axis direction, respectively. A groove portion 5563 is formed so as to be sandwiched between the two gear portions 5562.
Among these, the 4th gear 555 meshes with the 1st gear part 5561, and the 5th gear 556 is rotated as the 4th gear 555 rotates. The groove portion 5563 is a single groove formed on the outer periphery along the rotation direction of the fifth gear 556, and a belt 557 is attached to the groove portion 5563. Further, the second gear portion 5562 having a smaller diameter than the first gear portion 5561 constitutes the transport unit 6 and the gear 61L2 constituting the front arm 61L disposed on the left side of the base frame 51 (see FIG. 11). ) And the rotation of the fifth gear 556 is transmitted to the gear 61L2.

  The belt 557 is disposed along the surface of the base frame 51 where the opening 2A is formed. The belt 557 is wound around each of the fifth gear 556 and the sixth gear 558, and transmits the rotation of the fifth gear 556 to the sixth gear 558. In this embodiment, the belt 557 is made of rubber, but may be made of a synthetic resin having elasticity and a large contact resistance.

The sixth gear 558 is a gear for transmitting the rotational force transmitted from the belt 557 to the seventh gear 559, and is formed in a substantially cylindrical shape as a whole.
The sixth gear 558 has a groove portion 5581 to which the belt 557 is attached on one end portion side in the rotation axis direction of the sixth gear 558, and a gear meshing with the seventh gear 559 on the other end portion side. A portion 5582 is formed.
Of these, the groove portion 5581 has the same diameter as the groove portion 5563 of the fifth gear 556, and is formed as a single groove formed on the outer periphery along the rotational direction of the sixth gear 558.
The gear portion 5582 is formed so as to be substantially the same as the diameter of the groove portion 5581, and the gear portion 5582 meshes with the seventh gear 559.

The seventh gear 559 transmits the rotational force transmitted from the sixth gear 558 to a gear 61R2 that constitutes a transport unit 6 that will be described later and that constitutes a front arm 61R disposed on the right side of the base frame 51.
The seventh gear 559 is formed with a first gear portion 5591 that meshes with the gear portion 5582 of the sixth gear 558 on one end side in the rotation axis direction of the seventh gear 559, and the first gear portion A second gear portion 5592 having a diameter smaller than 5591 and meshing with the gear 61R2 is formed on the other end side.

In the transmission mechanism 55 as described above, the rotational force of the motor 53 is transmitted to the transport unit 6 as follows.
That is, when the worm gear 531 of the motor 53 rotates, the worm wheel 551 having the first gear portion 5511 that meshes with the worm gear 531 rotates. This rotational force is transmitted to the first gear 552 that meshes with the worm wheel 551. The rotational force transmitted to the first gear 552 is transmitted to the second gear 553 and the third gear 554 that mesh with the first gear 552, and the second gear 553 is applied to a slide cam 56L described later by the rotational force. When the formed rack portion 56L11 meshes with the second gear 553, the slide cam 56L is slid.

The rotational force transmitted to the third gear 554 is transmitted to the fifth gear 556 via the fourth gear 555. When the fifth gear 556 rotates, the rotational force of the fifth gear 556 is transmitted to the sixth gear 558 by the belt 557 attached to the fifth gear 556. At this time, the rotational force of the fifth gear 556 is transmitted to the gear 61L2 of the transport unit 6 that meshes with the second gear portion 5562 of the fifth gear 556.
When the sixth gear 558 rotates, the seventh gear 559 that meshes with the sixth gear 558 rotates. The rotation of the seventh gear 559 meshes with the seventh gear 559 and is transmitted to the gear 61R2 (see FIG. 11) constituting the transport unit 6. Here, the diameters of the sixth gear 558 and the seventh gear 559 are set so that the rotational speed per unit time of the seventh gear 559 is the same as the rotational speed per unit time of the fifth gear 556. Yes.

(5) Transport unit 6
Here, the configuration of the transport unit 6 will be described first.
9 to 11 are diagrams showing the transport unit 6. Specifically, FIG. 9 is a view of the transport unit 6 as viewed from above, and FIG. 10 is a view of the transport unit 6 as viewed from below. FIG. 11 is an exploded perspective view showing the transport unit 6.
The transport unit 6 is disposed on the base frame 51 so as to cover the transmission mechanism 55, and carries the disc D inserted from the disc storage opening 2 </ b> A into the apparatus main body 2. This unit is carried out from 2A to the outside of the apparatus main body 2 and corresponds to the conveying means of the present invention.
As shown in FIGS. 9 to 11, the transport unit 6 includes two front arms 61L and 61R, two link arms 62L and 62R, and a bracket 63 that supports them.

(5-1) Configuration of Bracket 63 As shown in FIGS. 9 and 10, the bracket 63 is a substantially symmetric flat plate member formed of synthetic resin or the like. On the lower side of the bracket 63 in FIGS. 9 and 10, a recess 631 is formed in which the left and right ends protrude in the out-of-plane direction. The recess 631 is an opening serving as a storage opening for the disk D to the apparatus main body 2 when the bracket 63 is attached to the base frame 51 and the top frame 701 constituting the upper unit 7 is attached to the base frame 51 The lower end of 2A is formed. The recess 631 is formed according to the diameter dimension of the first disk D1, and in this embodiment, is formed to be slightly larger than the diameter dimension of the first disk D1.

When viewed in a plan view with the concave portion 631 on the lower side, the bracket 63 is attached to the base frame 51 by three screws 635 that pass through holes (not shown) formed substantially at the center, upper left side, and upper right side. Fixed. These screws 635 are screwed into screw holes 5134 (see FIG. 6) formed in the base frame 51, respectively.
As shown in FIGS. 9 to 11, arm attachment portions 632 and 633 to which front arms 61L and 61R are attached are formed on the left and right sides of the bracket 63, respectively. A link attachment portion 634 to which 62R is attached is formed.

Each of the arm attachment portions 632 and 633 has a substantially fan-shaped outer shape, and on the back side (the side facing the base frame 51) of the arm attachment portions 632 and 633, in the vicinity of both left and right ends of the bracket 63, and As shown in FIG. 10, substantially semicircular arc-shaped support portions 6321 and 6331 are formed in the vicinity of the recess 631 so as to protrude in the out-of-plane direction.
These support portions 6321 and 6331 are fitted into substantially circular openings 61L11 and 61R11 (see FIG. 11) of the front arms 61L and 61R, respectively, and the front arms 61L and 61R have the support portions 6321 and 6331 as axes, respectively. Attached so as to be rotatable along the bracket 63. Among these, the second gear portion 5562 of the fifth gear 556 constituting the transmission mechanism 55 is located inside the support portion 6321, and the seventh gear 559 of the seventh gear 559 is located inside the support portion 6331. Two gear portion 5592 is located.
In addition, openings 6322 and 6332, guide holes 6323 and 6333, and stepped portions 6324 and 6334 are formed in the arm attachment portions 632 and 633, respectively.

  The opening 6322 is formed in the vicinity of the support portion 6321 and is exposed to the upper surface of the bracket 63 (the surface of the bracket 63 opposite to the surface facing the base frame 51), and is exposed to the first roller support portion 61L13 (see FIG. 12) and an opening through which the lock arm 61L7 is inserted. The opening 6322 is formed to a size that does not interfere with the first roller support portion 61L13 and the lock arm 61L7 when the front arm 61L rotates.

The guide hole 6323 is formed outside the opening 6322 in a circular arc shape centering on the support portion 6321. The guide hole 6323 is a hole for guiding the rotation of the front arm 61L that rotates about the support portion 6321, and the hook-shaped portion 61L17 formed in the front arm 61L is inserted into the guide hole 6323.
Further, a step 63231 is formed in the guide hole 6323 in an arc-shaped portion on the side close to the support portion 6321, and the tip of the flange-shaped portion 61L17 is applied to the step 63231. The hook-shaped portion 61L17 slides on the step 63231 when the front arm 61L rotates, so that the rotation around the support portion 6321 of the front arm 61L is smoothly performed.

  On the other hand, the step portion 6324 is formed on the upper surface side of the arc-shaped outer peripheral portion of the arm attachment portion 632, and functions as a guide for guiding the rotation of the front arm 61L. The stepped portion 6324 is hooked with a hook-shaped portion 61L143 (see FIG. 12) formed on the second roller support portion 61L14 of the front arm 61L, and when the front arm 61L rotates, the hook-shaped portion 61L143. Slides on the step 6324.

As described above, the opening 6332, the guide hole 6323, and the stepped portion 6324 formed in the arm attaching portion 632 are substantially symmetrically formed with the opening 6332, the guide hole 6333, and the stepped portion 6334 formed in the arm attaching portion 633. Yes.
In addition to the above, in the arm attachment portion 633, a substantially rectangular opening 6335 into which a shutter lever 58 described later is inserted is formed adjacent to the support portion 6331 and outside the support portion 6331. The opening 6335 corresponds to the right corner of the apparatus main body 2 near the opening 2A when the bracket 63 is attached to the base frame 51.

As shown in FIGS. 9 to 11, the link attachment portion 634 is formed at the substantially center of the bracket 63 so as to be sandwiched between the arm attachment portions 632 and 633.
As shown in FIG. 10, projections 6341 and 6342 projecting in the out-of-plane direction, hook-shaped portions 6343, holes 6344, and substantially rectangular openings 6345 and 6346 are provided on the back surface side of the link attachment portion 634. A substantially circular opening 6347 is formed.

Of these, the two protrusions 6341 and 6342 are formed in parallel at a predetermined interval on the left and right, and the link arms 62L and 62R are rotatably supported by the protrusions 6341 and 6342, respectively.
The hook-shaped portion 6343 is formed in the vicinity of the protruding portion 6342 so as to protrude in a substantially L-shaped cross section on the back surface side of the bracket 63. The hook-shaped portion 6343 locks the torsion spring 621 wound around the protruding portion 6342.
The hole portion 6344 is formed as a substantially arc-shaped hole inclined to the left side at the approximate center of the link attachment portion 634. More specifically, the hole 6344 is formed in an arc shape centering on the protrusion 6342 to which the aforementioned torsion spring is attached. Through the hole 6344, a protrusion 62R5 formed in a link arm 62R described later is inserted.

As shown in FIGS. 9 to 11, the substantially rectangular openings 6345 and 6346 are formed side by side in the vicinity of the recess 631 side in the link attachment portion 634. In these openings 6345 and 6346, after the disc D is stored, a lock lever 573 constituting an insertion preventing mechanism 57 described later is exposed.
The substantially circular opening 6347 is formed between the protrusions 6341 and 6342. The opening 6347 is an opening through which a light beam emitted from a light emitting unit of a photosensor 703 provided in the upper unit 7 described later passes. The light beam passes through the opening 6347 and is the control board 54 described above. The light is received by the light receiving portion 541 provided in the.

(5-2) Configuration of Front Arm 61L FIG. 12 is a perspective view showing the front arm 61L.
The front arms 61L and 61R (the front arm arranged on the left side when the opening 2A is arranged on the lower side in plan view is 61L and the front arm arranged on the right side is 61R) are open when the disc is stored. The disk D inserted from 2A is carried into the apparatus main body 2 and corresponds to the arm of the present invention for carrying out the disk D mounted on the optical unit 4 to the outside of the opening 2A when carrying out the disk. The front arms 61L and 61R are attached to arm attachment portions 632 and 633 formed on the bracket 63, respectively, as shown in FIGS.
Among these, as shown in FIG. 12, the front arm 61L includes an arm main body 61L1 rotatably attached to the bracket 63, three gears 61L2 to 61L4, a first roller 61L5 and a second roller 61L6, and a lock arm. 61L7.

The arm main body 61L1 has a substantially right triangle shape in plan view, and is attached from the back surface side of the bracket 63 so that one side sandwiching the right angle portion is along the recess 631.
As shown in FIG. 12, the arm main body 61L1 includes a substantially circular opening 61L11, a recess 61L12, a first roller support 61L13, a second roller support 61L14, an arm attachment 61L15, a step 61L16, a bowl shape. A portion 61L17 and an extending portion 61L18 are formed.

The substantially circular opening 61L11 is formed at one corner of the arm body 61L1 that is not substantially perpendicular. A substantially semicircular arc-shaped support portion 6321 formed on the arm attachment portion 632 of the bracket 63 is fitted inside the opening portion 61L11. Rotate within the area.
Further, in the opening 61L11, when the transport unit 6 is attached to the base frame 51 of the lower unit 5, the second gear portion 5562 formed in the fifth gear 556 of the transmission mechanism 55 constituting the lower unit 5 is provided. And the rotation of the fifth gear 556 is transmitted to the gears 61L2 to 61L4 provided in the recess 61L12.

The recess 61L12 is formed at the approximate center on the upper surface side (the surface side facing the bracket 63) of the arm body 61L1.
In this recess 61L12, three protrusions 61L121 are formed that protrude in the out-of-plane direction from the bottom surface of the recess 61L12. These protrusions 61L121 pivotally support the gears 61L2 to 61L4, respectively. Here, the recess 61L12 is formed so that the upper end of the recess 61L12 is higher than the upper surfaces of the gears 61L2 to 61L4 when the gears 61L2 to 61L4 are pivotally supported by the protrusions 61L121.

The first roller support portion 61L13 and the second roller support portion 61L14 are formed at the approximate center of the oblique side facing the right-angled portion of the arm main body 61L1 and on the side opposite to the side where the opening 61L11 is formed, The first roller 61L5 and the second roller 61L6 are rotatably supported.
The first roller support portion 61L13 and the second roller support portion 61L14 are opposite to the side of the first roller 61L5 and the second roller 61L6 that are pivotally supported by the support portions 61L13 and 61L14 and facing the right-angle portion of the arm body 61L1. It is formed in a substantially semi-cylindrical shape so as to cover the side portion.

Among these, the first roller support portion 61L13 includes the protrusion portions 61L511 (see FIG. 10) and the sandwiching portions 61L131 and 61L132 that sandwich the 61L514 formed on the first roller 61L5 (see FIG. 10 for the sandwiching portion 61L131). It is formed vertically.
The second roller support portion 61L14 includes protrusions 61L611 (see FIG. 10) and sandwiching portions 61L141 and 61L142 (see FIG. 10 for the sandwiching portion 61L141) that sandwich the 61L614 formed on the second roller 61L6. Is formed. Further, the second roller support portion 61L14 is formed with a hook-like portion 61L143 along the oblique side portion of the arm main body 61L1, and the hook-like portion 61L143 is formed on the arm attachment portion 632 of the bracket 63 as described above. Engage with the stepped portion 6324 formed in the.

  The arm attachment portion 61L15 is formed in a pin shape in a portion near the opening 61L11 from the first roller support portion 61L13. A lock arm 61L7, which will be described later, is rotatably supported by the arm mounting portion 61L15. Further, a torsion spring (not shown) that urges the lock arm 61L7 toward the first roller support portion 61L13 is also attached to the arm attachment portion 61L15. The one roller support 61L13 is in contact with the side opposite to the side where the first roller 61L5 is exposed.

The step portion 61L16 is formed at a right angle portion of the arm body 61L1.
A groove portion 61L161 having a substantially L shape in plan view is formed in the step portion 61L16. A protrusion 62R2 formed on a link arm 62R described later is fitted into the groove 61L161.
The hook-shaped portion 61L17 is provided in the vicinity of the concave portion 61L12 and the stepped portion 61L16, and is formed so as to protrude from the upper surface of the arm main body 61L1 in a substantially L-shaped cross section. As described above, the hook-shaped portion 61L17 is inserted into the guide hole 6323 formed in the arm mounting portion 632 of the bracket 63, and contacts the step 63231.

The extending portion 61L18 is substantially triangular in plan view along the arm main body 61L1 and away from the hypotenuse portion between the first roller support portion 61L13 and the second roller support portion 61L14 in the hypotenuse portion of the arm main body 61L1. It is formed to extend into a shape.
As shown in FIG. 10, the extending portion 61L18 is formed with two projecting portions 61L181 and 61L182 that protrude toward the back surface side (the side opposite to the side facing the bracket 63).

Among these, the protrusion 61L181 formed at the tip of the extending portion 61L18 is fitted into the groove 56L14 formed in the slide cam 56L constituting the lifting mechanism 56 when the first disk D1 described later is housed. The arm body 61L1 is locked so as not to contact the first disk D1.
Further, a protrusion 61L182 formed in the vicinity of the oblique side portion of the arm main body 61L1 fits into a groove 56L12 of the slide cam 56L when the second disk D2 described later is housed. Lock so as not to contact D2.

As described above, the gears 61L2 to 61L4 are disposed in the recess 61L12 of the arm body 61L1, and are rotatably supported by the protrusions 61L121 formed in the recess 61L12. These gears 61L2 to 61L4 are configured as substantially cylindrical gears.
Among these, the gear 61L2 meshes with the second gear portion 5562 of the fifth gear 556 constituting the transmission mechanism 55 exposed from the opening 61L11 of the arm main body 61L1, and as the fifth gear 556 rotates. Rotate. The gear 61L2 meshes with the first roller 61L5 and transmits the rotation of the fifth gear 556 to the first roller 61L5.

The gear 61L3 and the gear 61L4 mesh with each other, and the gear 61L3 rotates in the opposite direction to the rotation of the gear 61L2 as the gear 61L2 rotates, and the gear 61L4 rotates in the same direction as the rotation of the gear 61L2. To do.
Among these, the gear 61L4 meshes with the second roller 61L6, and rotates the second roller 61L6 in the same direction as the first roller 61L5 at the same rotational speed.

The first roller 61L5 and the second roller 61L6 are rollers that grip the disk D and transport the disk D. The second roller 61L6 corresponds to the roller of the present invention, and the first roller 61L5 is the roller of the present invention. Corresponds to other rollers.
Among these, the second roller 61L6 includes a roller body 61L61, a rubber roller 61L62, and a washer 61L63.
The roller body 61L61 includes a protrusion 61L611 (see FIG. 10), a gear part 61L612, a conical part 61L613, a shaft part (not shown), and a protrusion 61L614 in order from one side in the rotation axis direction of the second roller 61L6. .

The protrusions 61L611, 61L614 extend in the direction of the rotation axis of the second roller 61L6, and are respectively held by the holding portions 61L141, 61L142 formed on the second roller support portion 61L14.
The gear portion 61L612 is formed along the outer periphery of the roller body 61L61, meshes with the gear 61L4, and rotates the second roller 61L6 as the gear 61L4 rotates.
The conical portion 61L613 is formed in a substantially truncated cone shape that is inclined so as to connect the gear portion 61L612 and the rubber roller 61L62.

  Although the detailed illustration is omitted, the shaft portion is formed in a substantially cylindrical shape, and a rubber roller 61L62 is attached to the shaft portion. A pressing portion extending in a direction orthogonal to the rotation axis direction of the second roller 61L6 is formed on the opposite side of the shaft portion from the conical portion 61L613 side. The pressing portion includes a washer 61L63 from the roller body 61L61. Prevent from coming off. The protrusion 61L614 described above is formed at the end of the pressing portion.

  The rubber roller 61L62 is attached to the roller main body 61L61 and rotates together with the roller main body 61L61 by inserting a hole (not shown) formed substantially in the center in plan view through the shaft portion of the roller main body 61L61. The rubber roller 61L62 is pressed and fixed to the conical portion 61L613 side by a pressing portion formed on the shaft portion via a washer 61L63.

FIG. 13 is a view showing a longitudinal section of the rubber roller 61L62.
The rubber roller 61L62 has a shape in which two surfaces having a truncated cone shape are combined so that surfaces with small diameters face each other.
Specifically, as shown in FIG. 13, the rubber roller 61L62 has a pair of gripping portions 61L621 and 61L623 each having a substantially truncated cone shape and a pair of gripping portions 61L621 and 61L623 at both ends in the rotation axis direction of the rubber roller 61L62. A cylindrical connecting portion 61L625 is formed between the two. Among these, the pair of gripping portions 61L621 and 61L623 are formed so that the end portions having small diameters are opposed to each other, and the connecting portion 61L625 is connected between the end portions.

In the pair of gripping portions 61L621 and 61L623, cutouts 61L622 and 61L624 each having a substantially L shape in a longitudinal section are formed along the outer periphery of the gripping portions 61L621 and 61L623.
Specifically, the notches 61L622 and 61L624 are formed in the gripping portions 61L621 and 61L623 so that the right-angled portions in a substantially L shape in the longitudinal section face each other, and the distance between the notches 61L622 and 61L624 is It is formed so as to be substantially the same as the thickness dimension (dimension in the rotation axis direction of the disk D). Then, the disc D is fitted between the notches 61L622 and 61L624, and the side surface (disc D) of the discs 61L6221 and 61L6241 (parts along the rotation axis direction of the rubber roller 61L62) of the notches 61L622 and 61L624. Of the disk D are in contact with the horizontal portions 61L6222 and 61L6242 (portions orthogonal to the rotation axis direction of the rubber roller 61L62). The disk D is sandwiched between the horizontal portions 61L6222 and 61L6242 of the notches 61L621 and 61L622, and a rotational force is applied to the disk D by the vertical portions 61L6221 and 61L6241 together with the horizontal portions 61L6222 and 61L6242.

With such a configuration of the rubber roller 61L62, wear of the rubber roller 61L62 can be suppressed without reducing the gripping force with respect to the disk D.
That is, when the above-described notches 61L622 and 61L624 are not formed in the gripping portions 61L621 and 61L623, the edge of the disk D comes into contact with the inclined portion of the gripping portions 61L621 and 61L623. In other words, the corners sandwiched between the upper surface and the side surface of the disk D and the corner portions sandwiched between the lower surface and the side surface come into contact with the inclined portions of the gripping portions 61L621 and 61L623, respectively. In such a case, although the gripping force of the disc D by the gripping portions 61L621 and 61L623 can be increased, the inclined portions of the gripping portions 61L621 and 61L623 are scraped by the corners of the disc D, and the gripping portions 61L621 and 61L622 are worn. The problem that it is easy to do arises.

  On the other hand, when the rubber roller 61L62 is not formed with a configuration corresponding to the substantially truncated cone-shaped gripping portions 61L621 and 61L623 facing each other, and the entire rubber roller 61L62 is formed in a substantially cylindrical shape, the cylindrical portion Since the side surface of the disk D comes into contact with the side surface, the wear of the rubber roller 61L62 is suppressed. However, in such a case, the rubber roller 61L62 cannot properly hold the disk D, and the disk D may move in the vertical direction as the rubber roller 61L62 rotates.

  On the other hand, in the rubber roller 61L62 of the present embodiment, the upper and lower surfaces of the disk D are fitted by fitting the edges of the disk D into the notches 61L6211 and 61L6221 of the gripping parts 61L621 and 61L622 having substantially frustoconical shapes facing each other. Can be sandwiched between the horizontal portions 61L6222 and 61L6242 in the notches 61L6211 and 61L6221, and the disk D can be gripped appropriately. At this time, the corner portion of the disk D is fitted into the right angle portion of the notches 61L622 and 61L624 (the portion sandwiched between the vertical portions 61L6221 and 61L6241 and the horizontal portions 61L6222 and 61L6242). It is possible to prevent the rubber roller 61L62 from being scraped. Further, when the side surface of the disk D comes into contact with the vertical portions 61L6221 and 61L6241 of the notches 61L622 and 61L624, a rotational force can be appropriately applied to the disk D.

  Accordingly, the disc D can be properly gripped and conveyed, and wear of the rubber roller 61L62 can be suppressed. As a result, the life of the rubber roller 61L62 can be extended, and the fragments of the rubber roller 61L62 caused by wear can be suppressed from being scattered inside the disk device 1, so that the inside of the disk device 1 can be kept clean. it can. Furthermore, since the rubber roller 61L62 can properly hold the disk D and transport the disk D, the pressing force of the rubber roller 61L62 against the disk D can be reduced. As a result, the wear of the rubber roller 62L61 can be further suppressed, the life of the rubber roller 61L62 can be further extended, and the resistance when the disk D is inserted can be reduced. A sense can be given to the user.

The first roller 61L5 has the same configuration as the second roller 61L6.
That is, the first roller 61L5 includes a roller body 61L51, a rubber roller 61L52, and a washer 61L53 similar to the configuration of the second roller 61L6.
Of these, the roller main body 61L51 is not shown in detail, but, like the roller main body 61L51, a protruding portion 61L511 (see FIG. 10), a gear portion, a conical portion, a shaft portion, and a protruding portion 61L514 are formed. The gear portion meshes with the gear 61L2, and as the gear 61L2 rotates, the first roller 61L5 rotates in the opposite direction to the gear 61L2, that is, in the same direction as the second roller 61L6.
Although not shown in detail in the rubber roller 61L52, like the rubber roller 61L62, a pair of gripping portions and a connection portion are formed. A notch is formed.

As described above, the lock arm 61L7 is rotatably attached to the arm attachment portion 61L15 formed on the arm main body 61L1. Similarly, the lock arm 61L7 allows the disc D (particularly, the second disc D2 having a small diameter) inserted from the end of the opening 2A to be biased by a torsion spring (not shown) attached to the arm attachment portion 61L15. Centering in the center of the opening 2A, the second disk D2 is appropriately stored in the apparatus main body 2. That is, the lock arm 61L7 corresponds to the lever member of the present invention.
As shown in FIG. 11, the lock arm 61L7 includes a plate-like portion 61L71, a protruding portion 61L72 projecting upward from the plate-like portion 61L71, a regulating portion 61L73 hanging from the plate-like portion 61L71, and two abutments. Parts 61L74 and 61L75.

A substantially circular hole 61L711 is formed on one end side of the plate-like portion 61L71. The arm attachment portion 61L15 of the arm main body 61L1 is inserted into the hole portion 61L711, whereby the lock arm 61L7 is pivotally supported by the arm attachment portion 61L15.
The protruding portion 61L72 is formed to protrude from the upper surface of the plate-like portion 61L71, engages with a groove portion 7016L formed in a top frame 701 of the upper unit 7 described later, and guides the rotation of the lock arm 61L7.
The restricting portion 61L73 abuts on the first roller support portion 61L13 and restricts the lock arm 61L7 from rotating to the front side (the side where the first roller 61L5 is exposed) from the first roller support portion 61L13. Further, the restricting portion 61L73 is in contact with the aforementioned torsion spring on the side opposite to the side facing the first roller support portion 61L13, and the urging force from the torsion spring acts on the restricting portion 61L73.

  The contact portions 61L74 and 61L75 are formed in a pin shape that hangs down from the bottom surface of the plate-like portion 61L71 (the surface on the side facing the arm main body 61L1). Among these, the contact part 61L75 is formed at the end of the plate-like part 61L71 opposite to the end where the hole 61L711 is formed, and the contact part 61L74 is closer to the center than the contact part 61L75. It is formed at the position. Here, the straight line connecting the contact portions 61L74 and 61L75 when the lock arm 61L7 is attached to the arm attachment portion 61L15 and the restriction portion 61L73 is brought into contact with the first roller support portion 61L13 is the first roller 61L5 and the first roller 61L5. The contact portions 61L74 and 61L75 are formed so as to be substantially parallel to the straight line connecting the two rollers 61L6.

  The abutting portions 61L74 and 61L75 abut against the edge of the disk D when the disk D is transported. Specifically, the contact portion 61L74 contacts the edge of the first disk D1 when the first disk D1 having a large diameter is conveyed. Further, the contact portion 61L75 contacts the edge of the second disc D2 when the second disc D2 having a small diameter is conveyed. The contact portions 61L74 and 61L75 push the edge of the disk D toward the center of the transport unit 6 by the biasing force of the torsion spring, so that the centering of the disk D is performed smoothly.

The front arm 61R has the same configuration as the above-described front arm 61L.
Specifically, as shown in FIG. 10, the front arm 61R includes an arm body 61R1, gears 61R2 to 61R4, a first roller 61R5, a second roller 61R6, and a lock arm 61R7. The gears 61R2 to 61R4, the first roller 61R5, and the second roller 61R6 have substantially the same configurations as the gears 61L2 to 61L4, the first roller 61L5, and the second roller 61L6, respectively, and the arm body 61R1 and the lock arm 61R7. The configuration is substantially symmetrical with respect to the arm main body 61L1 and the lock arm 61L7. That is, the first roller 61R5 corresponds to the other roller of the present invention, the second roller 61R6 corresponds to the roller of the present invention, and the lock arm 61R7 corresponds to the lever member of the present invention.

  The arm main body 61R1 is cut out at a position corresponding to the extending portion 61L18 of the arm main body 61L1 in a substantially L shape in plan view, and the cutout portion is a first switch 542 provided on the control board 54 described above. In addition, a pressing portion 61R18 that contacts the second switch 543 (see FIG. 6) and presses the first switch 542 and the second switch 543 is provided. That is, the pressing portion 61R18 contacts the first switch 542 and the second switch 543 as the front arm 61R rotates when the disk D is loaded, and switches the switches 542 and 543 to the on state. Further, the pressing portion 61R18 moves away from the first switch 542 and the second switch 543 as the front arm 61R rotates when the disk D is carried out, and switches the first switch 542 and the second switch 543 to the OFF state. .

In addition, on the lower surface (surface facing the base frame 51) side of the arm main body 61R1, a shutter lever 58 (see FIGS. 44 to 46), which will be described later, abuts in the vicinity of the opening 61R11 to rotate the shutter lever 58. A protrusion 61R19 is formed.
As shown in FIG. 10, the protrusion 61R19 comes into contact with an inclined portion 587 of a shutter lever 58, which will be described later, when the front arm 61R rotates in a direction approaching the recess 631 of the bracket 63. As the front arm 61R further rotates, the protrusion 61R19 pushes down the inclined portion 587 of the shutter lever 58, so that the shutter lever 58 rotates in a state along the base frame 51.
The configuration of the shutter lever 58 will be described in detail later, and the other configuration of the front arm 56R is the same as that of the front arm 61L, and thus the description thereof is omitted.

(5-3) Configuration of Link Arms 62L and 62R As shown in FIGS. 10 and 11, the link arms 62L and 62R are attached to the bracket 63 from the lower surface side and connected to the front arms 61L and 61R, respectively. In accordance with the turning operation of one front arm, the other front arm is turned in the opposite direction, and the front arms 61L and 61R are moved in synchronization with each other in a direction approaching and separating from each other. It is a link.

  As shown in FIGS. 10 and 11, the link arm 62L is attached to the left side of the link attachment portion 634 of the bracket 63 (the side close to the arm attachment portion 632 (see FIG. 10) to which the front arm 61L is attached). The link arm 62R is attached to the right side (the side close to the arm attachment portion 633 (see FIG. 10) to which the front arm 61R is attached). The link arms 62L and 62R are arranged so as to intersect with each other substantially at the center.

  The torsion spring 621 (see FIG. 10) corresponds to the biasing means of the present invention, and applies a biasing force to the link arm 62R to connect the link arm 62R and the front arm 61L connected to the link arm 62R. Is urged toward the concave portion 631 side. More specifically, the torsion spring 621 biases the front arm 61L toward the recess 631 via the link arm 62R, and biases the front arm 61R engaged with the link arm 62R toward the recess 631. Thereby, the torsion spring 621 biases the pair of front arms 61L and 61R in directions close to each other.

FIG. 14 is a plan view showing the link arm 62. Specifically, FIG. 14 is a plan view of the link arms 62L and 62R as viewed from the side facing the bracket 63. In FIG. 14, the torsion spring 621 is not shown.
As shown in FIG. 14, the link arm 62R is a thin and long metal plate member that is slightly bent, and a hole 62R1 is formed at one end of the link arm 62R. The hole 62R1 is attached to a protrusion 6342 (see FIG. 10) formed in the link attachment portion 634 of the bracket 63 together with the torsion spring 621 (see FIG. 10). As a result, the link arm 62R is rotatably supported about the protrusion 6342 (see FIG. 10).

  A step 62R3 is formed at the end of the link arm 62R where the protrusion 62R2 is formed so as to be closer to the bracket 63 side than the end where the hole 62R1 is formed. A projecting portion 62R2 having a substantially cylindrical shape protruding in the out-of-plane direction (direction facing the bracket 63) is formed at the tip portion of the stepped portion 62R3, and the bracket 63 has a position closer to the center than the projecting portion 62R2. Two elongated protrusions 62R4 are formed to reduce the resistance of the link arm 62R that contacts the back surface and slides along the back surface.

Among these, the protrusion 62R2 is slidably fitted into a groove 61L161 (see FIG. 12) formed in the step portion 61L16 of the arm body 61L1 constituting the front arm 61L described above. Thereby, the rotation operation of the link arm 62R corresponds to the rotation operation of the front arm 61L.
In addition, a substantially cylindrical shape is inserted in a substantially center of the link arm 62R through an opening 62L4 of the link arm 62L described later and through a hole 6344 (see FIG. 10) formed in the link mounting portion 634 of the bracket 63. The protrusion 62R5 is formed.

As shown in FIG. 14, the link arm 62L is a metallic flat plate member bent to the opposite side of the link arm 62R, and is formed on one end side of the link arm 62L at the link attachment portion 634. A hole 62L1 through which the projected portion 6341 (see FIG. 10) is inserted is formed. Accordingly, the link arm 62L is supported so as to be rotatable about the protrusion 6341 as an axis.
Further, at the end of the link arm 62L opposite to the end where the hole 62L1 is formed, a groove 61R161 (see FIG. 11) formed in the stepped portion 61R16 of the arm body 61R1 constituting the front arm 61R. A protrusion 62L2 that is slidably fitted is formed. Thereby, the rotation operation of the front arm 61L corresponds to the rotation operation of the front arm 61R.
Furthermore, a protrusion 62L3 for reducing resistance when the link arm 62L slides along the back surface of the bracket 63 is formed at a position closer to the center from the protrusion 62L2.

  In addition, a hole 62L4 through which the protrusion 62R5 formed on the link arm 62R is inserted is formed at the approximate center of the link arm 62L. The formation range of the hole 62L4 is a movement range of the protrusion 62R5 when the link arm 62R is rotated, and is formed in an arc shape. By inserting the protrusion 62R5 through the hole 62L4, the operation of one of the link arms 62L and 62R is transmitted to the other arm. Specifically, when the link arm 62L rotates in the direction close to the link mounting portion 634 (see FIG. 10) in the bracket 63, the link arm 62R similarly rotates in the direction close to the link mounting portion 634. When the link arm 62L rotates to the side away from the link attachment portion 634, the link arm 62R similarly rotates in the direction away from the link attachment portion 634.

Here, the arrangement positions of the front arms 61L and 61R constituting the transport unit 6 will be described.
As described above, the front arms 61L and 61R are attached to the arm attachment portions 632 and 633 formed at both ends in the direction along the recess 631 of the bracket 63 that forms the opening 2A, respectively.
More specifically, as shown in FIGS. 9 and 10, the front arms 61L and 61R are attached so as to have rotating shafts in the vicinity of both ends of the recess 631 in the bracket 63, and the link arms 62L and 62R Each of them rotates in the direction of approaching and separating from each other in synchronization. The front arms 61L and 61R are inclined by approximately 45 ° with respect to the insertion direction of the disk D into the opening 2A before the disk D is carried in, and are provided on the side where the second rollers 61L6 and 61R6 are provided. It arrange | positions so that an edge part may mutually adjoin. Therefore, a straight line connecting the centers of the first roller 61L5 and the second roller 61L6 provided on the front arm 61L and a center of each of the first roller 61R5 and the second roller 61R6 provided on the front arm 61R are connected. The intersection angle with the straight line is approximately 90 °.

  The front arms 61L and 61R are arranged such that the distance between the second rollers 61L6 and 61R6 when the front arms 61L and 61R are not rotating is shorter than the diameter dimension of the second disk D2. Yes. And these front arms 61L and 61R are urged | biased by the torsion spring 621 attached to the bracket 62 in the direction which mutually adjoins via the link arms 62L and 62R. Therefore, the distance between the second rollers 61L6 and 61R6 when the second rollers 61L6 and 61R6 are transporting the disk D is equal to the first disk D1 even when the front arms 61L and 61R are rotated. The diameter of the first disk D1 is not larger than the diameter of the first disk D1, and the diameter of the second disk D2 is not larger than that of the second disk D2.

(5-4) Operation of Transport Unit 6 The operation of the transport unit 6 will be described with reference to FIGS.
The transport unit 6 is driven by the driving force generated by the motor 53 (see FIG. 6) being transmitted by the transmission mechanism 55 described above. Specifically, when the motor 53 rotates and the rotational force of the motor 53 is transmitted from the fifth gear 556 (see FIG. 6) of the transmission mechanism 55 to the gear 61L2 of the front arm 61L, the first gear meshes with the gear 61L2. One roller 61L5 rotates. Further, by the rotation of the gear 61L2, the second roller 61L6 meshing with the gear 61L4 rotates in the same direction as the first roller 61L5 via the gear 61L3 and the gear 61L4 meshing with the gear 61L2.

On the other hand, the gear 61R2 of the front arm 61R meshing with the seventh gear 559 (see FIG. 6) of the transmission mechanism 55 rotates with the rotation of the seventh gear 559, and rotates the first roller 61R5 and the gear 61R3. Rotate. At this time, the rotation of the gear 61R3 is transmitted to the gear 61R4, and the second roller 61R6 meshing with the gear 61R4 is rotated in the same direction as the first roller 61R5.
Here, the first roller 61L5 and the second roller 61L6 provided on the front arm 61L and the first roller 61R5 and the second roller 61R6 provided on the front arm 61R rotate in directions opposite to each other.

  Further, when the front arm 61L rotates in a direction away from the recess 631 of the bracket 63 with the support portion 6321 as an axis, the link arm 62R has the recess 61 with the protrusion 6342 as an axis so as to be pulled by the front arm 61L. It rotates in the direction away from. At this time, the protrusion 62R5 formed on the link arm 62R moves along the hole 62L4 of the link arm 62L, so that the link arm 62L moves away from the recess 61 with the protrusion 6341 as an axis. Rotate. For this reason, the front arm 61R connected to the link arm 62L rotates in a direction away from the recess 631 around the support portion 6331 so that the link arm 62L is pushed by the groove portion 61R161. Thus, when the front arm 61L rotates in the direction away from the recess 631, the front arm 61R also rotates in the direction away from the recess 631. Thereby, each front arm 61L and 61R rotates synchronously in the direction which mutually spaces apart.

  On the other hand, when the front arm 61L rotates around the support portion 6321 in the direction approaching the recess 631, the above-described link arm 62 acts reversely, so that the front arm 61R also has the support portion 6331 as a shaft. As a direction close to the recess 631. As a result, the front arms 61L and 61R are rotated in synchronization in directions close to each other.

(6) Upper unit 7
Next, the upper unit 7 will be described.
15 to 17 are diagrams showing the upper unit 7. Specifically, FIG. 15 is a plan view of the upper unit 7 as viewed from above, and FIG. 16 is a perspective view of the upper unit 7 as viewed from below. FIG. 17 is an exploded perspective view showing the upper unit 7.
As described above, the upper unit 7 is a unit that is attached to the base frame 51 (see FIG. 4) constituting the lower unit 5 and constitutes the upper part of the apparatus main body 2.
As shown in FIGS. 15 to 17, the upper unit 7 includes a top frame 701, a shutter 702 attached to the top frame 701, a photo sensor 703, a support arm 704, a detection arm 705, a guide arm 706, and a guide lock 707. And chuck arms 708 and 709 and a chuck pulley 710.

(6-1) Configuration of Top Frame 701 FIGS. 18 and 19 are diagrams showing the top frame 701. FIG. More specifically, FIG. 18 is a view of the top frame 701 as viewed from above, and FIG. 19 is a view of the top frame 701 as viewed from below.
The top frame 701 is a synthetic resin lid-like member that is attached above the base frame 51 (see FIG. 4) of the lower unit 5 and constitutes the upper part of the apparatus main body 2. Corresponds to the housing. The top frame 701 is formed in a substantially rectangular shape in plan view. As shown in FIGS. 17 to 19, the top frame 701 includes an opening 7011, five holes 7012, a recess 7013, a shutter mounting portion 7014, A sensor mounting portion 7015, a guide groove 7016, a support arm mounting portion 7017, a guide lock mounting portion 7018, a guide arm mounting portion 7019, and chuck arm mounting portions 701A and 701B are formed.

As shown in FIGS. 18 and 19, the opening 7011 is formed in a substantially circular shape at the approximate center of the top frame 701. A small-diameter portion 7101 (see FIG. 16) of a chuck pulley 710, which will be described later, is inserted into the opening portion 7011.
The hole 7012 is a hole through which a screw (not shown) for fixing the top frame 701 to the base frame 51 (see FIG. 4) is inserted. A total of five locations are formed at one end and the approximate center between the other ends in the longitudinal direction.

  As shown in FIGS. 17 to 19, the recess 7013 is formed in a substantially U shape in a side view on one end side in the longitudinal direction of the top frame 701. That is, the recess 7013 is formed so that the left and right ends on the end side extend downward. The concave portion 7013 is combined with the concave portion 631 (see FIG. 11) formed in the bracket 63 that constitutes the above-described transport unit 6, thereby constituting an opening 2 </ b> A for disc storage in the apparatus main body 2. The concave portion 7013 is formed to be slightly larger than the diameter dimension of the first disk D1, similarly to the concave portion 631 (see FIGS. 9 and 11) formed in the bracket 63 described above.

  The shutter mounting portion 7014 includes two clamping portions 7014L and 7014R. As shown in FIG. 19, the sandwiching portions 7014L and 7014R are formed so as to sandwich the recess 7013. The sandwiching portion 7014L is formed on the left side of the recess 7013 (the right side in FIG. 19). It is formed on the right side (left side in FIG. 19) of the recess 7013. These sandwiching portions 7014L and 7014R sandwich shaft portions 7022L and 7022R (see FIG. 17) formed on a shutter 702, which will be described later, respectively, and support the shutter 702 so as to be rotatable about the shaft portions 7022L and 7022R. .

  As shown in FIG. 18, the sensor attachment portion 7015 is formed in a substantially concave shape in cross-section at the approximate center from the center of the recess 7013 to the opening 7011, and the sensor attachment portion 7015 includes a photosensor 703 (see FIG. 17) is attached from the upper surface (surface facing the above-described top cover 91) side of the top frame 701. The sensor mounting portion 7015 has a substantially rectangular opening 70151 through which a light beam emitted from the light emitting portion of the photosensor 703 toward the light receiving portion 541 (see FIG. 6) provided on the control board 54 of the lower unit 5 passes. Is formed.

The guide groove 7016 includes two groove portions 7016L and 7016R, and these groove portions 7016L and 7016R are formed so as to sandwich the sensor attachment portion 7015 along the short direction as shown in FIG.
Among these, the protrusion 61L72 (see FIG. 11) of the lock arm 61L7 constituting the transport unit 6 slides in the groove 7016L formed on the left side (the right side in FIG. 19) of the top frame 701. In addition, a protrusion of a lock arm 61R7 (see FIG. 11) that also constitutes the transport unit 6 slides in a groove 7016R formed on the right side (left side in FIG. 19) of the top frame 701.

  Of the side wall portions of the top frame 701 forming the grooves 7016L and 7016R, lock arms attached to the front arms 61L and 61R are provided along the longitudinal direction of the top frame 701 (vertical direction in FIG. 19). The protrusions 71L72 of 61L7 and 61R7 (the protrusions of the lock arm 61R7 are not shown) abut, and rotation restricting parts 7016L1 and 7016R1 for restricting the rotation of the front arms 61L and 61R are formed.

Among these, the rotation restricting portion 7016L1 is inserted with the second disk D2 having a small diameter at a position near the end of the opening 2A, and the front arm 61L together with the lock arm 61L7 is moved by the edge of the second disk D2. When pushed and turned, the protrusion 71L72 of the lock arm 61L7 is fitted. Then, the rotation restricting portion 7016L1 restricts further rotation of the front arm 61L by restricting rotation of the lock arm 61L7. In a state where the rotation of the front arm 61L is restricted, the distance between the second rollers 61L6 and 61R6 provided on the front arm 61L and the front arm 61R, respectively, is smaller than the diameter dimension of the second disk D2. Is set to
As a result, the front arm 61L can be prevented from being expanded so that the distance between the second rollers 61L6 and 61R6 is larger than the diameter dimension of the second disk D2, and the second disk D2 is erroneously carried in. Can be prevented.
The same applies to the engagement between the rotation restricting portion 7016R1 and the lock arm 61R7.

  The support arm attachment portion 7017 is a portion to which a support arm 704 (see FIG. 16), which will be described later, is attached from the lower surface (surface facing the base frame 51) side. As shown in FIGS. 18 and 19, the support arm mounting portion 7017 is formed on the right side of the opening 7011 (the right side in FIG. 18 and the left side in FIG. 19). The support arm mounting portion 7017 is formed with a screw hole 70171 and two guide holes 70172 and 70173.

The screw hole 70171 is formed in the vicinity of the edge of the top frame 701 in the support arm mounting portion 7017, and a screw (not shown) inserted through the hole portion 7043 formed in the support arm 704 is screwed. As a result, the support arm 704 is supported so as to be rotatable about the screw hole 70171.
The two guide holes 70172 and 70173 are each formed in a substantially arc shape with the screw hole 70171 as the center. Among these, the guide hole 70173 is formed outside the guide hole 70172 when viewed from the screw hole 70171. The guide holes 70172 and 70173 are respectively inserted with hook-shaped portions 7046 and 7047 formed in the support arm 704. The guide holes 70172 and 70173 guide the rotation of the support arm 704, and the support arm 704. The rotation range is defined.

The guide lock attachment portion 7018 is formed on the left side of the opening portion 7011. The guide lock attaching portion 7018 is formed with a recess 70181 to which the guide lock 707 (see FIG. 16) is attached and a guide groove 70187 for guiding the rotation of the guide lock 707.
The recess 70181 is formed on the lower surface side of the top frame 701, and is formed so that the guide lock 707 can be rotated within the range where the recess 70181 is formed. A screw hole 70182 into which a screw (not shown) that rotatably supports the guide lock 707 is screwed is formed at substantially the center of the recess 70181. Further, around the screw hole 70182, a projecting portion 70183 having a substantially circular shape in plan view is formed around the screw hole 70182 to reduce resistance when the guide lock 707 rotates.

Further, a locking portion 70184 that locks the other end of a torsion spring (not shown) having one end engaged with the guide lock 707 is formed on the recess 7013 side of the recess 70181.
Further, in the concave portion 70181, restricting portions 70185 and 70186 that restrict unnecessary rotation of the guide lock 707 are formed on the side close to the opening portion 7011 and on the end edge side of the top frame 701. Of these, the restricting portion 70185 is also a side wall that forms the recess 70181. In addition, although mentioned later in detail, the guide lock 707 is urged | biased by the direction contact | abutted to the control part 70185 with the above-mentioned torsion spring.

  The guide groove 70187 is formed in a substantially arc shape centered on the screw hole 70182 on the opposite side to the concave portion 7013 side when viewed from the concave portion 70181. A cylindrical portion 70717 of the guide lock 707 is slidably fitted in the guide groove 70187, and the guide groove 70187 guides the rotation of the guide lock 707.

  As shown in FIG. 19, the guide arm mounting portion 7019 is formed on the side opposite to the concave portion 7013 side of the guide lock mounting portion 7018. The guide arm mounting portion 7019 has a guide arm 706 (see FIG. 16) described later. Is attached so as to be rotatable from the lower surface side of the top frame 701. In the guide arm mounting portion 7019, a substantially circular recess 70191 is formed on the lower surface side of the top frame 701, and a stepped portion 70196 having a depth dimension smaller than that of the recess 70191 is formed on the outer periphery of the recess 70191. ing.

  The recess 70191 is formed in a substantially circular shape, and a screw hole 70192 into which a screw (not shown) inserted through the guide arm 706 is screwed is formed in the approximate center of the recess 70191. Further, around the screw hole 70192, substantially arc-shaped guide holes 70193 and 70194 are formed around the screw hole 70192. These guide holes 70193 and 70194 are formed at equal distances from the screw holes 70192, and cylindrical portions 70615 and 70616 (see FIG. 23) formed in the guide arm 706 are inserted into the respective guide holes 70193 and 70194. The guide holes 70193 and 70194 guide the rotation of the guide arm 706 and define the rotation range of the guide arm 706.

The recess 70191 is formed with a locking portion 70195 that locks a torsion spring (not shown) whose one end is engaged with the guide arm 706. By this torsion spring, the guide arm 706 is biased toward the side close to the opening 7011.
The stepped portion 70196 is formed in a substantially arc shape centering on the screw hole 70192 of the recessed portion 70191, on the outer side of the recessed portion 70191 and on the opening portion 7011 side. In the formation range of the stepped portion 70196, a detection arm 705 (see FIG. 16) described later slides.

The chuck arm attachment portion 701A is formed on the right side of the opening 7011 in the top frame 701 as shown in FIGS. A chuck arm 708 (see FIG. 17), which will be described later, is attached to the chuck arm attachment portion 701A from the upper surface side of the top frame 701.
The chuck arm attachment portion 701A is formed in a concave shape on the upper surface side of the top frame 701. The chuck arm attachment portion 701A has a screw hole 701A1, guide holes 701A2, 701A3, 701A5, and a hook-like portion 701A7. Is formed.

  The screw hole 701A1 is formed at a position obliquely above and to the right of the opening 7011 (obliquely above and to the right of the opening 7011 in FIG. 18) when the top frame 701 is viewed from above, and the chuck arm 708 is inserted into the screw hole 701A1. Screws (not shown) are screwed together. As a result, the chuck arm 708 is rotatably supported by the chuck arm mounting portion 701A.

The guide holes 701A2, 701A3, and 701A5 are each formed in a substantially arc shape centered on the screw hole 701A1, and the guide holes 701A2, 701A3 and 701A5 guide the rotation of the chuck arm 708, and A rotation range of the chuck arm 708 is defined.
Specifically, the guide hole 701A2 is formed in the vicinity of the edge of the top frame 701, and the cylindrical portion 7084 and the protruding portion 7085 (see FIG. 27) formed in the chuck arm 708 are inserted therethrough.
In addition, the guide holes 701A3 and 701A5 are formed in a substantially L shape in plan view above and below the opening 7011 when the top frame 701 is viewed in a plan view with the recess 7013 down. Through these guide holes 701A3 and 701A5, hook-shaped portions 7086 and 7082 (see FIG. 27) formed in the chuck arm 708 are inserted.

  Here, step portions 701A4 and 701A6 that are adjacent to the guide holes 701A3 and 701A5 and conform to the shapes of the guide holes 701A3 and 701A5 are formed in the chuck arm attachment portion 701A, respectively. The step portions 701A4 and 701A6 are in contact with the tip portions of hook-like portions 7086 and 7082 (see FIG. 27) of the chuck arm 708 inserted through the guide holes 701A3 and 701A5, and the tip portions of the hook-like portions 7086 and 7082 are in contact with each other. Slid along the step portions 701A4 and 701A6.

  As shown in FIG. 18, the flange portion 701A7 is formed in the vicinity of the guide hole 701A2 so as to protrude in an approximately L-shape from the upper surface of the top frame 701 in the out-of-plane direction. The hook-shaped portion 701A7 has the other end of a tension spring (not shown) fixed at one end to the chuck arm 708, and the chuck arm 708 is formed with the hook-shaped portion 701A7 by the tension spring. The top frame 701 is biased toward the edge. In other words, the chuck arm 708 is biased by the tension spring in a direction in which the chuck arm 708 comes into contact with a chuck pulley 710 described later.

As shown in FIGS. 18 and 19, the chuck arm attachment portion 701B is located on the left side of the opening 7011 in the top frame 701 (the left side in FIG. 18 and the right side in FIG. 19) on the stepped portion 70196 of the guide arm attachment portion 7019. Adjacent to each other. The chuck arm attachment portion 701B is formed in a concave shape in which the upper surface side of the top frame 701 is recessed, and a chuck arm 709 (see FIG. 17) described later is provided on the chuck arm attachment portion 701B from the upper surface side of the top frame 701. It is attached.
The chuck arm attachment portion 701B is formed with a screw hole 701B1, guide holes 701B2 and 701B4, and step portions 701B3 and 701B5.

  As shown in FIG. 18, the screw hole 701 </ b> B <b> 1 is formed on the left side of the opening 7011 when the top frame 701 is viewed from above with the recess 7013 on the lower side. Specifically, the screw hole 701B1 is formed on the opposite side of the opening 7011 from the screw hole 701A1 formed in the chuck arm attachment portion 701A. A screw (not shown) inserted through the chuck arm 709 is screwed into the screw hole 701B1, and thereby the chuck arm 709 is supported so as to be rotatable about the screw hole 701B1.

  As shown in FIGS. 18 and 19, the guide holes 701 </ b> B <b> 2 and 701 </ b> B <b> 4 are formed in a substantially L shape in plan view on the upper side and the left side of the opening 7011 when the concave portion 7013 is positioned on the lower side. These guide holes 701B2 and 701B4 are formed in a substantially arc shape with the screw hole 701B1 as the center. The guide holes 701B2 and 701B4 have hook-shaped portions 7096 and 7093 formed on the chuck arm 709 (see FIG. 28). ) Is inserted. The guide holes 701B2 and 701B4 guide the rotation of the chuck arm 709, and the rotation range of the chuck arm 709 is defined.

  The step portions 701B3 and 701B5 are formed adjacent to the guide holes 701B2 and 701B4, respectively. The step portions 701B3 and 701B5 are in contact with the tip portions of hook-shaped portions 7096 and 7093 (see FIG. 28) of the chuck arm 709 inserted through the guide holes 701B2 and 701B4, respectively. The portion slides on the step portions 701B3 and 701B5.

(6-2) Configuration of Shutter 702 The shutter 702 is rotatably mounted on the shutter mounting portion 7014 of the top frame 701 described above, and opens and closes the opening 2A of the apparatus main body 2.
As shown in FIGS. 16 and 17, the shutter 702 includes a substantially flat shutter body 7021 having a size that covers the opening 2A, and a pair of shaft portions 7022 (7022L, 7022L, 7022R), a locking portion 7023 (see FIG. 16), and a contact portion 7024 (see FIG. 17).

  Among these, the pair of shaft portions 7022 (7022L, 7022R) are formed in a substantially cylindrical shape so as to extend from both ends in the longitudinal direction of the shutter main body 7021 in a direction away from each other along the longitudinal direction. . Of these shaft portions 7022, the shaft portion 7022L formed on the left side (the right side in FIG. 16 and the left side in FIG. 17) of the shutter main body 7021 is the shutter mounting portion 7014 formed on the top frame 701 as described above. A shaft portion 7022R formed on the right side of the shutter main body 7021 (on the left side in FIG. 16 and on the right side in FIG. 17) is rotatably supported by the clamping portion 7014R. .

As shown in FIG. 16, the locking portion 7023 is formed at the end of the shutter main body 7021 on the side where the shaft portion 7022L is formed so as to protrude in a substantially L shape. The locking portion 7023 is attached to the shaft portion 7022L, and locks a torsion spring 7025 (see FIG. 17) that urges the shutter main body 7021 in a direction to close the opening 2A.
As shown in FIG. 17, the contact portion 7024 is formed at the end of the shutter main body 7021 on the side where the shaft portion 7022 </ b> R is formed so as to extend in the direction along the longitudinal direction of the shutter main body 7021. A shutter lever 58, which will be described later, is in contact with the contact portion 7024. When the shutter lever 58 contacts the contact portion 7024, the shutter body 7021 is pushed up, and the opening 2A is opened. The opening of the opening 2A by the shutter lever 58 will be described in detail later.

(6-3) Configuration of Photosensor 703 The photosensor 703 emits a light beam toward the light receiving portion 541 of the control board 54 attached to the base frame 51 as described above. The photosensor 703 is configured as a circuit board and is fixed to the sensor mounting portion 7015 of the top frame 701. Although not shown in detail, the photosensor 703 includes a light emitting portion that emits a light beam, and the light beam emitted from the light emitting portion is an opening 70151 formed in the sensor mounting portion 7015 (see FIG. 18). ) And an opening 6347 (see FIGS. 9 and 10) formed in the bracket 63 of the transport unit 6, and is received by the light receiving portion 541 of the control board 54.

(6-4) Configuration of Support Arm 704 FIG. 20 is a perspective view showing the support arm 704.
The support arm 704 is an arm that maintains the posture of the disk D so that the edge of the disk D does not come into contact with the turntable 411 of the optical unit 4 when the disk D is loaded. As shown in FIG. 16, the support arm 704 is attached to a support arm attachment portion 7017 formed on the top frame 701 from the lower surface (surface facing the base frame 51) side of the top frame 701.
As shown in FIG. 20, the support arm 704 is an integrally molded product formed in a substantially L-shaped cross section having an upper surface portion 7041 and a side surface portion 7042 (see FIG. 16) substantially orthogonal to the upper surface portion 7041. is there. Among these, the upper surface portion 7041 is a surface facing the lower surface of the top frame 701. The upper surface portion 7041 includes a hole portion 7043, a boss 7044 surrounding the hole portion 7043, and three hook-shaped portions 7045 and 7046. , 7047 and an opening 7048 are formed.

The hole portion 7043 is formed in a substantially circular shape in plan view at one end portion in the longitudinal direction of the upper surface portion 7041. A screw (not shown) for attaching the support arm 704 to the support arm attachment portion 7017 is inserted into the hole portion 7043, and the screw is screwed into a screw hole 70171 (see FIG. 19) formed in the support arm attachment portion 7017. Match.
The boss 7044 is formed so as to protrude from the upper surface portion 7041 in a substantially cylindrical shape so as to surround the periphery of the hole portion 7043. A torsion spring (not shown) whose one end is locked to the support arm attachment portion 7017 and whose other end engages with the opening 7048 is wound around the boss 7044. Due to the biasing force of the torsion spring, the support arm 704 is positioned closer to the recess 7013 (see FIG. 16) in the support arm attachment portion 7017.

Each of the hook-shaped portions 7045, 7046, and 7047 protrudes from the upper surface portion 7041 in the out-of-plane direction at the approximate center of the upper surface portion 7041, and is substantially L-shaped in cross-section when the tip portion is bent along the upper surface portion 7041. It is formed in a shape. Among these, the tip end portion of the hook-shaped portion 7045 formed on the side closest to the hole portion 7043 is bent in a direction orthogonal to the direction toward the hole portion 7043, and is farthest from the hole portion 7043. The hook-shaped portion 7047 formed in the above-mentioned position and the tip portions of the hook-shaped portion 7046 formed between the hook-shaped portion 7047 and the hook-shaped portion 7045 are bent in the direction toward the hole portion 7043. Yes.
Further, the hook-shaped portions 7046 and 7047 are respectively inserted into guide holes 70172 and 70173 (see FIG. 19) formed in the support arm mounting portion 7017, and engaged with the support arm mounting portion 7017 so that the support arm 704 is not detached. To do.
The opening 7048 is formed in an oval shape in plan view between the flanges 7046 and 7047, and one end of a torsion spring (not shown) wound along the outer periphery of the boss 7044 is inserted.

  On the lower surface side (the side facing the base frame 51) of the upper surface portion 7041, a cylindrical portion 7049 that protrudes out of the surface from the lower surface is formed. This cylindrical portion 7049 is engaged with a slide cam 56R (see FIG. 34) constituting an elevating mechanism 56 described later, and is supported in a state separated from the disk D when the disk D is stored in the apparatus main body 2. The arm 704 is locked.

An abutting portion 704A and a cylindrical portion 704B (see FIG. 16) that abut against the edge of the disk D are formed at the end of the support arm 704 opposite to the end where the hole portion 7043 is formed.
Although not shown in detail, the contact portion 704A includes a pair of substantially frustoconical guide portions whose small diameter sides face each other and a cylindrical portion that connects the small diameter sides of the respective guide portions. Among these, the pair of guide portions are portions where the edge of the disk D abuts against the cylindrical portion, and the cylindrical portion is a portion where the edge of the disk D abuts. For this reason, the length dimension of the cylindrical part, which is the dimension between the guide parts, substantially matches the axial dimension of the disk D (the thickness dimension of the disk D).

  The cylindrical portion 704B protrudes from the lower surface (surface facing the base frame 51) side of the contact portion 704A. The cylindrical portion 704B engages with a groove 56R1B or a groove 56R1C (see FIGS. 33 and 34) of a slide cam 56R, which will be described later, when the support arm 704 rotates in contact with the disk D. The rotation of the support arm 704 is locked by the engagement between the cylindrical portion 704B and the slide cam 56R.

(6-5) Configuration of Detection Arm 705 FIG. 21 is a perspective view showing the detection arm 705. FIG. 22 is a view of the detection arm 705 as viewed from below.
As shown in FIG. 16, the detection arm 705 is rotatably attached to a guide arm 706 described later, and contacts the edge of the disk D when the disk D is inserted into the apparatus main body 2. This is an arm for moving a slide cam 56L (see FIG. 29) constituting the elevating mechanism 56.
As shown in FIG. 21, the detection arm 705 includes an arm main body 7051 and a piece member 7058 rotatably attached to the arm main body 7051.

  The arm main body 7051 has a substantially triangular shape in plan view, and includes an upper surface portion 7052 facing a lower surface of a guide arm 706 and a top frame 701 described later, and a side surface portion 7053 depending from the edge of the upper surface portion 7052 (see FIG. 16). ), An upright portion 7054 formed on the lower surface side of the upper surface portion 7052 along the side surface portion 7053, a rib 7055 connecting the side surface portion 7053 and the upright portion 7054, and one end portion of the upper surface portion 7052 in the longitudinal direction. It is comprised from the protrusion part 7056 formed in the side, and the support part 7057 which supports the piece member 7058 rotatably.

Among these, at the approximate center of the upper surface portion 7052, a projection portion 70521 is formed that protrudes from the upper surface portion 7052 in a substantially cylindrical shape in the out-of-plane direction and has a hole formed at the center. This protrusion 70521 is fitted into a hole 70611 (see FIGS. 23 and 24) formed in a guide arm 706 described later. The detection arm 705 is supported by the guide arm 706 so as to be rotatable about the projection 70521.
Further, an annular portion 70522 protruding from the upper surface portion 7052 in the out-of-plane direction is formed around the protrusion portion 70521 in the upper surface portion 7052 so as to surround the protrusion portion 70521. The annular portion 70522 reduces resistance with the guide arm 706 when the detection arm 705 rotates.

Further, around the annular portion 70522 in the upper surface portion 7052, three substantially cylindrical projecting portions 70523, 70524, and 70525 that project out of the upper surface portion 7052 are formed.
Among these, extended portions 705231 and 705241 extending in the direction opposite to the direction toward the protruding portion 70521 are formed at the tip portions of the protruding portions 70523 and 70524 formed in the vicinity of the protruding portion 7056. These protrusions 70523 and 70524 are inserted through guide holes 70613 and 70612 (see FIGS. 23 and 24) formed in a guide arm 706 described later, and extended portions 705231 and 705241 at the tip end portions are formed in the guide arm 706. The detection arm mounting portion 7061 thus slid on the upper surface.

Further, the protruding portion 70525 formed at the approximate center of the upper surface portion 7052 is inserted into a guide hole 70614 (see FIGS. 23 and 24) formed in the guide arm 706. The projecting portion 70525 includes an extending portion 705251 extending in a direction opposite to the direction toward the projecting portion 70521, and an extending portion extending in a direction substantially orthogonal to the extending direction of the extending portion 705251 in plan view. A protruding portion 705252 is formed.
Among these, the extending portion 705251 slides along the guide arm 706 when the projecting portion 70525 is inserted into the guide hole 70614 and the detection arm 705 rotates.
The extension portion 705252 is wound around a guide arm 706 described later, and one end of the extension portion 705252 is engaged with the other end of a torsion spring (not shown) that is engaged with the engagement portion 70195 of the guide arm attachment portion 7019. As a result, the detection arm 705 is urged in the direction close to the opening 7011 (see FIG. 19) of the top frame 701 by the torsion spring while being attached to the guide arm 706.

  As shown in FIG. 22, the side surface 7053 is formed with a regulating portion 70531 having a substantially rectangular shape in side view protruding from the side surface 7053 in the out-of-plane direction. The restricting portion 70531 is a rotation end of the detection arm 705 and abuts on the guide arm 706 to restrict the rotation of only the detection arm 705.

  The protrusion 7056 is a part that engages with a slide cam 56L that constitutes a lifting mechanism 56 described later, and moves the slide cam 56L as the detection arm 705 rotates. As described above, the protruding portion 7056 is formed on one end side of the upper surface portion 7052, and a groove 56L1A (see FIGS. 29 and 30) of the slide cam 56L is formed at the tip of the protruding portion 7056. A cylindrical portion 70561 that is inserted and abuts against an upright portion 56L16 (see FIGS. 29 and 30) that forms the groove portion 56L1A is formed.

  The support portion 7057 is a portion that supports the piece member 7058, abuts against the edge of the disc D as the disc D is inserted, and guides the end edge of the disc D to the abutment portion 70582 of the piece member 7058. The support portion 7057 is formed in a substantially U shape in sectional view. The support portion 7057 has a holding portion 70571 for rotatably holding the shaft portion 70581 of the piece member 7058 and a guide for guiding the edge of the disk D. A portion 70572 is formed.

The sandwiching portion 70571 is formed in a substantially U shape in plan view, and sandwiches the shaft portion 70581 of the piece member 7058 in a rotatable manner at a substantially central portion of the sandwiching portion 70571. For this reason, the dimension of the opening part of the clamping part 70571 is formed so that it may correspond with the diameter of the axial part 70581 substantially.
The guide portion 70572 is formed in a substantially truncated cone shape, and is formed so that the small diameter portion faces the sandwiching portion 70571. The tip portion of the contact portion 70582 of the piece member 7058 contacts the surface of the guide portion 70572 facing the sandwiching portion 70571.

The piece member 7058 is a member that is rotatably supported by the support portion 7057 and rotates in contact with the edge of the disk D. The piece member 7058 is formed on one end side of the piece member 7058, and has a substantially cylindrical shaft portion 70581 that is rotatably held by the holding portion 70571, and a side on which the shaft portion 70581 is formed. A substantially cylindrical abutting portion 70582 formed at the opposite end of the disc and a guide portion 70583 for guiding the end edge of the disk D to the abutting portion 70582 are formed.
Among these, the guide portion 70583 is formed in a substantially truncated cone shape, the long diameter side is connected to the shaft portion 70581, and the small diameter side is connected to the contact portion 70582. When the edge of the disk D comes into contact with the guide portion 70583, the edge of the disk D is guided to the side surface of the contact portion 70582 by the inclination of the guide portion 70583.

(6-6) Configuration of Guide Arm 706 FIG. 23 is a perspective view showing the guide arm 706. FIG. 24 is a view of the guide arm 706 as viewed from below.
The guide arm 706 is attached with the above-described detection arm 705 (see FIGS. 16, 21, and 22), and engages with a slide cam 56L (see FIG. 29) constituting an elevating mechanism 56 described later. It is an arm that rotates as the 56L slide moves. The guide arm 706 is attached to the guide arm attachment portion 7019 (see FIG. 16) formed on the top frame 701 from the lower surface side of the top frame 701.
As shown in FIGS. 23 and 24, the guide arm 706 is formed with a detection arm attaching portion 7061 and an engaging portion 7062 that engages with a slide cam 56L described later and rotates the guide arm 706. Has been.

The detection arm attachment portion 7061 supports the detection arm 705 described above so as to be rotatable. The detection arm attachment portion 7061 is formed in a substantially circular shape in plan view on the guide arm 706.
As shown in FIG. 23, the detection arm mounting portion 7061 has a substantially circular hole portion 70611 at a substantially central position, and guide holes 70612, 70613, and 70614 that are formed in a substantially arc shape around the hole portion 70611. A cylindrical portion 70615 formed so as to be sandwiched between the guide holes 70612 and 70613 and having the hole portions 706151, a cylindrical portion 70616 formed so as to be sandwiched between the guide holes 70613 and 70614, and a guide hole 70614. A cylindrical portion 70617 formed near the edge opposite to the formed side and a restricting portion 70618 that engages with a guide lock 707 described later to restrict the rotation of the guide arm 706 are formed. .

A projection 70521 formed on the detection arm 705 described above is rotatably fitted in the hole 70611.
The protrusions 70524, 70523, and 70525 of the detection arm 705 are inserted into the guide holes 70612, 70613, and 70614, respectively, and the guide holes 70612, 70613, and 70614 guide the rotation of the detection arm 705.
Here, a regulating portion 706141 that protrudes toward the inside of the guide hole 70614 is formed on the side wall that forms the guide hole 70614. The restricting portion 706141 is in contact with the protruding portion 70525 of the detecting arm 705 inserted through the guide hole 70614, thereby restricting the rotation of the detecting arm 705. That is, the rotation range of the detection arm 705 is set within the range indicated by the arrow S in FIG.

The cylindrical portion 70615 is formed with a hole portion 706151 having a substantially circular shape in plan view at a substantially center. The hole 706151 is inserted with a screw (not shown) for screwing the guide arm 706 into a screw hole 70192 (see FIG. 19) formed in the guide arm mounting portion 7019.
In addition, an extended portion 706152 extending in a direction orthogonal to the axial direction of the cylindrical portion 70615 is formed at the tip of the cylindrical portion 70615. The extension portion 706152 has one end engaged with the detection arm 705, the other end locked by the locking portion 70195 of the guide arm mounting portion 7019, and a torsion spring (not shown) wound around the cylindrical portion 70615. Is a portion that prevents the cylindrical portion 70615 from coming off.

The cylindrical portions 70616 and 70617 are respectively inserted through guide holes 70194 and 70193 (see FIGS. 18 and 19) formed in the guide arm mounting portion 7019 of the top frame 701 described above. Thereby, the rotation of the guide arm 706 is guided.
As shown in FIG. 23, extended portions 706161, 706171 extending in the direction perpendicular to the axial direction of the cylindrical portions 70615, 70616 are formed at the tips of the cylindrical portions 70616, 70617, respectively. The extending portions 706161 and 706171 are in contact with the upper surface of the top frame 701 when the cylindrical portions 70616 and 70617 are inserted through the guide holes 70194 and 70193 so that the guide arm 706 is not detached from the top frame 701.

  As shown in FIGS. 23 and 24, the restricting portion 70618 is formed in a substantially L shape in plan view so as to extend from the end edge of the detection arm mounting portion 7061 and bend at a substantially right angle at the distal end portion in the extending direction. ing. The restricting portion 70618 engages with a cylindrical portion 70717 (see FIG. 25) formed in a guide lock 707, which will be described later, and restricts the rotation of the guide arm 706. That is, the rotation of the guide arm 706 is not allowed unless the guide lock 707 is rotated and the engagement between the guide lock 707 and the guide arm 706 is released.

The engaging portion 7062 is formed outside the detection arm attaching portion 7061 as shown in FIG. The engaging portion 7062 includes an upper surface portion 70621, a side surface portion 70622 that is formed along the edge of the upper surface portion 70621 and substantially hangs down from the end edge, and two ribs 70623 that connect the side surface portions 70622 to each other. 70624 and two cylindrical portions 70625 and 70626 that protrude in the out-of-plane direction from the surface opposite to the upper surface portion 70621 are formed.
Among these, a restriction portion 70531 (see FIG. 22) formed on the detection arm 705 is in contact with a surface 706221 facing the detection arm 705 in the side surface portion 70622, and the rotation of the detection arm 705 is restricted.

Of the cylindrical portions 70625 and 70626, one end side of the engaging portion 7062, more specifically, when the guide arm 706 is attached to the guide arm attachment portion 7019 (see FIG. 16) of the top frame 701, the top A cylindrical portion 70625 formed on the edge side of the frame 701 engages with grooves 56L1D and 56L1E (see FIG. 30) formed in a slide cam 56L described later.
That is, when the upper unit 7 is attached to the lower unit 5, the cylindrical portion 70625 is disposed in the vicinity of the groove portion 56L1F (see FIG. 30) of the slide cam 56L. As the slide cam 56L slides, the first disk D1 having a larger diameter is inserted into the groove 56L1D, and when the second disk D2 having a smaller diameter is inserted, the groove 56L1E. The guide arm 706 is rotated and the guide arm 706 is locked.

Similarly, the cylindrical portion 70626 formed on the other end side of the engaging portion 7062 engages with a groove portion 56L1F (see FIG. 30) formed on the slide cam 56L. Here, the engagement between the cylindrical portion 70626 and the groove portion 56L1F is performed when the first disk D1 is inserted into the apparatus main body 2.
In addition, the cylindrical portions 70625 and 70626 engage with the respective groove portions 56L1D to 56L1F of the slide cam 56L, and the rotation operation of the guide arm 706 accompanying the slide movement of the slide cam 56L will be described in detail later.

(6-7) Configuration of Guide Lock 707 FIG. 25 is a perspective view showing the guide lock 707. FIG. 26 is a view of the guide lock 707 as viewed from below.
The guide lock 707 is attached to the guide lock mounting portion 7018 (see FIG. 19) formed on the top frame 701 from the lower surface side of the top frame 701, and the guide arm 706 (see FIGS. 23 and 24) rotates. It is a member that regulates. The guide lock 707 is engaged with a slide cam 56L (see FIG. 30) described later. The guide lock 707 releases the restriction on the rotation of the guide arm 706 when the guide lock 707 rotates while abutting against the edge of the first disk D1 or when the guide lock 707 rotates with the slide movement of the slide cam 56L. .
As shown in FIGS. 25 and 26, the guide lock 707 includes a planar portion 7071 having a substantially rectangular shape in plan view, and a cylindrical portion projecting on the lower surface (surface facing the base frame 51) side of the planar portion 7071. 7072, 7073, and 7074 are formed.

Among these, the cylindrical portions 7072, 7073, and 7074 are formed at three of the four corners of the lower surface of the flat portion 7071 as shown in FIG.
Specifically, the cylindrical portion 7072 is formed at the corner of the flat portion 7071 located near the edge of the top frame 701 when the guide lock 707 is attached to the guide lock attachment portion 7018 of the top frame 701. Yes.
Similarly, the cylindrical portion 7073 is formed at the corner of the flat portion 7071 on the side close to the above-described guide arm 706 when the guide lock 707 is attached to the guide lock attaching portion 7018.
Further, the cylindrical portion 7074 is formed at the corner of the flat portion 7071 located on the opposite side of the cylindrical portion 7072 with the hole portion 70713 in the flat portion 7071 interposed therebetween. The cylindrical portion 7074 abuts on the edge of the first disk D1, rotates the guide lock 707 as the first disk D1 is inserted into the apparatus main body 2, and the guide arm 706 is moved by the guide lock 707. Release the rotation restriction.

Of these cylindrical portions 7072, 7073, and 7074, the cylindrical portion 7072 contacts an upright portion 56L15 (see FIG. 30) formed on a slide cam 56L described later when the second disc D2 is inserted into the apparatus main body 2. Then, the guide lock 707 is rotated.
The cylindrical portion 7073 engages with the groove 56L1B (see FIG. 30) when the first disk D1 is inserted, and the groove 56L1C (see FIG. 30) when the second disk D2 is inserted. And the rotation of the guide lock 707 is locked. The engagement between the cylindrical portions 7072 and 7073 and the slide cam 56L will be described in detail later.

As shown in FIG. 25, the flat portion 7071 includes an annular portion 70711 that protrudes out of the plane from the upper surface of the flat portion 7071 and a cylindrical portion 70717 that protrudes out of the plane at a position corresponding to the cylindrical portion 7073. Is formed.
Among these, the cylindrical portion 70717 engages with a restricting portion 70618 formed in a substantially L shape on the above-described guide arm 706 to restrict the rotation of the guide arm 706.

The annular portion 70711 is formed with a notch 70712 whose side opposite to the side facing the cylindrical portion 70717 has a height dimension that is approximately １ ／ of the annular portion 70711. Further, inside the annular portion 70711, there is a hole portion 70713 in the approximate center, and a substantially cylindrical boss 70714 having a height dimension substantially the same as the height dimension of the annular portion 70711, and the boss 70714 so as to avoid the boss 70714. A rib 70715 having a substantially L shape in plan view is formed to connect between the end portions of the annular portion 70711.
Among them, the rib 70715 is formed with a protruding portion 70716 that protrudes from the side surface portion of the rib 70715 in the out-of-plane direction, that is, in the direction toward the notch 70712.

  A screw (not shown) for attaching the guide lock 707 to the guide lock attachment portion 7018 is inserted into the hole portion 70713 formed by the boss 70714. This screw is screwed into a screw hole 70182 (see FIG. 19) formed in the guide lock mounting portion 7018, whereby the guide lock 707 is rotatably supported by the guide lock mounting portion 7018.

The boss 70714 includes a large-diameter portion 707141 standing from the flat surface portion 7071 and a small-diameter portion 707142 having a smaller diameter than the large-diameter portion 707141.
Among these, an extended portion 707143 extending in a direction orthogonal to the axial direction of the boss 70714 is formed at the tip of the small diameter portion 707142. Then, around the small-diameter portion 707142, a torsion in which one end is locked to a protruding portion 70716 formed on a rib 70715 and the other end is locked to a locking portion 70184 (see FIG. 19) of a guide lock mounting portion 7018. A spring (not shown) is wound, and the extension portion 707143 prevents the torsion spring from being detached from the small diameter portion 707142.
Further, the torsion spring urges the guide lock 707 so that the cylindrical portion 7072 of the guide lock 707 is positioned on the edge side of the top frame 701 and the cylindrical portion 7073 is positioned on the opening 7011 side of the top frame 701. Is done. In this state, the guide lock 707 is maintained, so that the rotation of the guide arm 706 is restricted.

(6-8) Configuration of Chuck Arm 708 FIG. 27 is a diagram of the chuck arm 708 viewed from below.
The chuck arm 708 is an arm that supports and releases a chuck pulley 710 (see FIG. 17) together with a later-described chuck arm 709 (see FIGS. 17 and 28). The chuck arm 708 is attached to a chuck arm attachment portion 701A (see FIG. 18) of the top frame 701 so as to be rotatable from the upper surface side of the top frame 701.
As shown in FIG. 27, the chuck arm 708 has a substantially Y shape in plan view, and a hole 7081 is formed in a substantially central portion. A screw (not shown) for attaching the chuck arm 708 to the chuck arm attachment portion 701A is inserted into the hole 7081. This screw is screwed into a screw hole 701A1 (see FIG. 18) of the chuck arm attachment portion 701A, and thereby the chuck arm 708 is rotatably supported by the top frame 701.

One of the three ends of the chuck arm 708 is formed with a hook-shaped portion 7082 that is substantially L-shaped in side view. The hook-shaped portion 7082 is inserted through a guide hole 701A5 (see FIG. 19) formed in the chuck arm mounting portion 701A, and when the chuck arm 708 is rotated, the tip portion of the hook-shaped portion 7082 is inserted into the guide hole. It slides along a stepped portion 701A6 (see FIG. 19) formed adjacent to 701A5.
A contact portion 7083 that contacts the large-diameter portion 7102 (see FIG. 17) of the chuck pulley 710 is formed between the flange-shaped portion 7082 and the hole portion 7081. Although not shown in detail, the contact portion 7083 is formed in a substantially arc shape, and becomes thicker toward the lower surface side (side facing the top frame 701) and the tip side (side closer to the chuck pulley 710). It has a tapered curved surface with a small dimension. Therefore, when the contact portion 7083 contacts the large diameter portion 7102 of the chuck pulley 710, the chuck pulley 710 moves so as to float from the opening 7011.

  A cylindrical portion 7084 and a protruding portion 7085 are formed on the other end of the three ends of the chuck arm 708, that is, on the end located on the opposite side of the flange-shaped portion 7082 with the hole 7081 interposed therebetween. ing. The cylindrical portion 7084 and the protruding portion 7085 are inserted through a guide hole 701A2 (see FIG. 19) formed in the chuck arm attachment portion 701A to guide the rotation of the chuck arm 708. Further, the cylindrical portion 7084 is inserted into a groove portion 56R1D (see FIGS. 33 and 34) of a slide cam 56R constituting an elevating mechanism 56 described later, and the chuck arm 708 is rotated as the slide cam 56R slides. Let

In the vicinity of the cylindrical portion 7084 and the projection portion 7085, a substantially L-shaped flange portion 7086 is formed in a side view, and between the flange portion 7086 and the projection portion 7085, a plan view is omitted. A U-shaped locking portion 7087 is formed.
Of these, the hook-shaped portion 7086 is inserted through a guide hole 701A3 (see FIG. 19) formed in the chuck arm attachment portion 701A, and the tip portion of the hook-shaped portion 7086 is formed adjacent to the guide hole 701A3. It contacts the stepped portion 701A4 (see FIG. 19). Then, the tip portion of the hook-shaped portion 7086 slides along the step portion 701A4 when the chuck arm 708 rotates, and guides the rotation of the chuck arm 708, and the chuck arm 708 is connected to the chuck arm mounting portion. 701A is prevented from coming off.
The other end of a tension spring (not shown) attached at one end to the hook-like portion 701A7 of the chuck arm attachment portion 701A is attached to the locking portion 7087. Therefore, normally, the chuck arm 708 has the cylindrical portion 7084 positioned on the edge side of the top frame 701 and the contact portion 7083 against the large diameter portion 7102 (see FIG. 17) of the chuck pulley 710 by the tension spring. It is biased in the direction of contact.

  A cylindrical portion 7088 that is inserted into a guide hole 7095 (see FIG. 28) of the chuck arm 709 described later is formed at the other one of the three ends of the chuck arm 708. As shown in FIG. 17, the cylindrical portion 7088 is formed to protrude from the upper surface side of the chuck arm 708 in the out-of-plane direction. The cylindrical portion 7088 rotates the chuck arm 709 by sliding in the guide hole 7095 when the chuck arm 708 is rotated.

(6-9) Configuration of Chuck Arm 709 FIG. 28 is a diagram of the chuck arm 709 viewed from below.
As described above, the chuck arm 709 is an arm that supports and releases the chuck pulley 710 together with the chuck arm 708. Similar to the chuck arm 708, the chuck arm 709 is rotatably attached to a chuck arm attachment portion 701B (see FIG. 18) formed on the top frame 701 from the upper surface side of the top frame 701.
As shown in FIG. 28, the chuck arm 709 is configured as an elongated flat plate member. A hole 7091 is formed at one end of the chuck arm 709. A screw (not shown) is inserted through the hole 7091, and the screw is screwed into a screw hole 701B1 (see FIGS. 18 and 19) formed in the chuck arm attachment portion 701B. As a result, the chuck arm 709 is rotatably supported by the chuck arm attachment portion 701B.

  A contact portion 7092 that contacts the large diameter portion 7102 (see FIG. 17) of the chuck pulley 710 is formed on the side of the chuck arm 709 that faces the above-described chuck arm 708. The contact portion 7092 is formed in a substantially circular arc shape in plan view, and the thickness dimension becomes smaller toward the lower surface side (side facing the top frame 701) and the tip side (side closer to the chuck pulley 710). It is formed in a taper shape. For this reason, when the contact portion 7092 contacts the large diameter portion 7102 of the chuck pulley 710, the chuck pulley 710 moves so as to float from the opening 7011 of the top frame 701.

Further, on the side opposite to the side where the contact portion 7092 is formed in the chuck arm 709, a flange portion 7093 having a substantially L shape in side view is formed on the side close to the hole portion 7091. A restricting portion 7094 is formed on the opposite side across the shape portion 7093.
Of these, the hook-shaped portion 7093 is inserted through a guide hole 701B4 (see FIG. 19) formed in the chuck arm attachment portion 701B, and the tip portion of the hook-shaped portion 7093 is formed adjacent to the guide hole 701B4. It contacts the stepped portion 701B5 (see FIG. 19). The tip portion of the hook-shaped portion 7093 slides along the step portion 701B5 when the chuck arm 709 rotates, whereby the rotation of the chuck arm 709 is guided and the chuck arm 709 is attached to the chuck arm mounting portion. 701B cannot be removed. Further, the pivot range of the chuck arm 709 is defined by inserting the hook-shaped portion 7093 through the guide hole 701B4.
The restricting portion 7094 is formed in a substantially arc shape, and when the chuck arm 709 rotates, the restricting portion 7094 contacts the edge of the chuck arm mounting portion 701B, and the rotation of the chuck arm 709 is restricted.

In the chuck arm 709, a guide hole 7095 and a hook-shaped portion 7096 are formed at the end opposite to the end where the hole 7091 is formed.
Of these, the hook-shaped portion 7096 is formed at a position farthest from the hole portion 7091 and is inserted through a guide hole 701B2 (see FIG. 19) formed in the chuck arm attachment portion 701B. And the front-end | tip part of the said hook-shaped part 7096 contact | abuts to the level | step-difference part 701B3 (refer FIG. 19) formed adjacent to the guide hole 701B2. Thereby, the rotation of the chuck arm 709 is guided and the chuck arm 709 is prevented from being detached from the chuck arm attachment portion 701B. Further, the rotation range of the chuck arm 709 is defined by inserting the hook-shaped portion 7096 through the guide hole 701B2.

  The guide hole 7095 is formed in a substantially arc shape, and the cylindrical portion 7088 (see FIG. 17) formed in the chuck arm 708 is inserted into the guide hole 7095. More specifically, when the cylindrical portion 7088 comes into contact with the guide hole 7095 and the chuck arm 708 rotates, the cylindrical portion 7088 pushes the chuck arm 709 outward along the guide hole 7095. 709 rotates around the hole 7091. At this time, the engagement between the chuck arms 708 and 709 and the chuck pulley 710 is released.

(6-10) Configuration of Chuck Pulley 710 The chuck pulley 710 holds the disc D along the direction perpendicular to the surface of the disc D together with the turntable 411 of the motor 41 constituting the optical unit 4 described above. . As shown in FIGS. 15 to 17, the chuck pulley 710 is fitted into the opening 7011 from the upper surface side so as to cover the opening 7011 formed in the top frame 701, and is attached to the chuck arms 708 and 709. Supported to be sandwiched.
As shown in FIG. 17, the chuck pulley 710 is formed with a small-diameter portion 7101 located in the opening 7011 and a large-diameter portion 7102 having a larger diameter than the opening 7011.

Among these, inside the small diameter portion 7101, a support portion 71011 for supporting a magnet (not shown) that holds the disk D together with the turntable 411 is provided.
Further, as shown in FIG. 15, the large diameter portion 7102 is formed so as to cover a part of the chuck arms 708 and 709, and comes into contact with the contact portions 7083 and 7092 formed on the chuck arms 708 and 709, respectively. . As the chuck arms 708 and 709 rotate, the engagement between the large diameter portion 7102 and the contact portions 7083 and 7092 is released, and the chuck pulley 710 becomes rotatable.

(6-11) Operation of Upper Unit 7 Here, operations of the arms 704 to 706, 708, 709 and the guide lock 707 constituting the upper unit 7 described above will be described with reference to FIGS. . In addition, although operation | movement of the structure of the upper unit 7 is demonstrated here, operation | movement of the apparatus main body 2 related with the lower unit 5, the conveyance unit 6, etc. is explained in full detail later.
When the disk D is inserted so as to push up the shutter 702 from the opening 2 </ b> A of the apparatus body 2, the light beam emitted from the light emitting part of the photosensor 703 is received by the light receiving part 541 of the control board 54 provided on the base frame 51. (See FIG. 6), light cannot be received, and insertion of the disk D is detected. With the detection of the insertion of the disk D, the motor 53 provided in the base frame 51 rotates, and the disk D is carried into the apparatus main body 2 by the transport unit 6.

When the disk D is carried into the apparatus main body 2, the edge of the disk D comes into contact with the contact part 704A of the support arm 704. As the disk D is carried in, the support arm 704 causes the hole 7043 to pivot. As shown in FIG. 16, it rotates in the direction close to the edge of the top frame 701 (the counterclockwise direction in FIG.
Here, when the inserted disk D is the first disk D1 having a large diameter, the edge of the first disk D1 comes into contact with the cylindrical portion 7074 of the guide lock 707, and the guide lock 707 rotates. .
On the other hand, when the edge of the second disk D2 having a small diameter comes into contact with the piece member 7058 of the detection arm 705, the detection arm 705 rotates around the protrusion 70521 (see FIG. 21) as an axis. The slide cam 56L engaged with the cylindrical portion 70561 is moved. Along with the movement of the slide cam 56L, the guide lock 707 engaged with the slide cam 56L rotates in the direction in which the cylindrical portion 7073 approaches the edge of the top frame 701 (the clockwise direction in FIG. 16). .

  When the guide lock 707 is rotated, the guide arm 706 to which the detection arm 705 is attached is allowed to rotate, and the slide arm 56L is slid to move the guide arm 706 to the hole portion 70611 (see FIGS. 23 and 24). As a center, the cylindrical portion 70626 rotates in a direction close to the edge of the top frame 701 (clockwise direction in FIG. 16). When the disk D is completely stored in the apparatus main body 2, the detection arm 705, the guide arm 706, and the guide lock 707 are moved by the slide cam 56L at a position where the detection arm 705 is separated from the edge of the disk D. Locked.

On the other hand, the support arm 704 is locked at a position away from the edge of the disk D by the slide cam 56R that slides in the opposite direction as the slide cam 56L slides.
As the slide cam 56R slides, the chuck arm 708 engaged with the slide cam 56R moves in the direction in which the cylindrical portion 7084 formed on the chuck arm 708 moves away from the edge of the top frame 701 (left in FIG. 15). Rotate in the direction of rotation). As the chuck arm 708 rotates, the chuck arm 709 engaged with the cylindrical portion 7088 of the chuck arm 708 in the guide hole 7095 moves away from the chuck arm 708 around the hole 7091 (the counterclockwise direction in FIG. 15). ).
As a result, the chuck arms 708 and 709 and the chuck pulley 710 are separated from each other, and the chuck pulley 710 becomes rotatable. At this time, the chuck arm 708 is locked away from the chuck pulley 710 by the slide cam 56R, and accordingly, the chuck arm 709 is also locked away from the chuck pulley 710.

(7) Elevating mechanism 56
As described above, the elevating mechanism 56 is a mechanism that is attached to the base frame 51 (see FIG. 5) and moves up and down the holder 52 (see FIG. 5) to which the optical unit 4 is fixed as the disk D is carried in. . Specifically, when the disk D is carried into the apparatus main body 2, the lifting mechanism 56 raises the holder 52 so that the disk D and the motor 41 (see FIG. 3) of the optical unit 4 are engaged. In addition, when the disk D is carried out of the apparatus main body 2, the holder 52 is lowered so as to release the engagement between the disk D and the motor 41.
As shown in FIGS. 4, 5, and 7, the lifting mechanism 56 includes two slide cams 56 </ b> L and 56 </ b> R and a link arm 561 that connects the two slide cams 56 </ b> L and 56 </ b> R. .

(7-1) Configuration of Slide Cam 56L FIGS. 29 to 32 are views showing the slide cam 56L. Specifically, FIG. 29 is a perspective view showing the slide cam 56L, and FIGS. 30 to 32 are views of the slide cam 56L as viewed from above, below, and from the side (side facing the holder 52). .
As described above, the slide cam 56L is slidably disposed on the cam placement portion 514L (see FIGS. 4 and 5) of the base frame 51 constituting the lower unit 5. More specifically, the slide cam 56L is arranged in a state of being biased in a direction opposite to the opening 2A in the base frame 51 by a compression spring (not shown) provided in the cam arrangement portion 514L. When the disk D is stored, the slide cam 56L slides along the holder 52 along the holder 52 in the direction close to the transmission mechanism 55 (see FIG. 6) (the direction of the arrow A1 in FIGS. 29 to 32). When the disk D is unloaded, the disk D slides in a direction away from the transmission mechanism 55 (the direction of arrow A2 in FIGS. 29 to 32).
The slide cam 56L is a vertically long plate-like member made of synthetic resin. As shown in FIGS. 29 to 32, the upper surface portion 56L1 facing the top frame 701 and the bottom surface facing the cam placement portion 514L of the base frame 51 are provided. A portion 56L2 and a side surface portion 56L3 facing the holder 52 are provided.

29 and 30, the upper surface portion 56L1 is formed with a rack portion 56L11, groove portions 56L12 to 56L14, and standing portions 56L15 to 56L17 that stand up from the upper surface portion 56L1 in the out-of-plane direction.
The rack portion 56L11 is formed at the end portion of the upper surface portion 56L1 in the arrow A1 direction along the longitudinal direction of the slide cam 56L. The rack portion 56L11 meshes with the second gear portion 5532 of the second gear 553 (see FIG. 6) constituting the transmission mechanism 55 described above, and the slide cam 56L is slid by the rotation of the second gear 553. .

The groove portions 56L12 to 56L14 are formed along the longitudinal direction of the slide cam 56L at the end portion of the upper surface portion 56L1 where the rack portion 56L11 is formed. Of these, the grooves 56L12 and 56L13 are formed so as to extend along the longitudinal direction, then bend away from the rack portion 56L11, and extend again along the longitudinal direction.
The protrusions 61L181 and 61L182 (see FIG. 10) of the arm main body 61L1 constituting the front arm 61L engage with the groove 56L12 formed on the side close to the rack portion 56L11. Further, the protruding portion 61L181 engages with the groove portion 56L14 formed on the opposite side of the rack portion 56L11 with the groove portions 56L12 and 56L13 interposed therebetween.

That is, as will be described in detail later, when the first disk D1 having a large diameter is stored inside the apparatus main body 2 by the transport unit 6, the protruding portion 61L182 formed on the inner side in the extending portion 61L18 is formed in the groove portion 56L12. At the same time, the protrusion 61L181 engages with the groove 56L14 to lock the front arm 61L away from the edge of the first disk D1.
Further, when the second disk D2 having a small diameter is housed inside the apparatus main body 2 by the transport unit 6, the protruding portion 61L181 formed on the outside of the extending portion 61L18 engages with the groove portion 56L12, and the The front arm 61L is locked in a state where it is separated from the edge of the second disk D2.

The standing portions 56L15 to 56L17 are formed as side walls that stand in an out-of-plane direction from the upper surface portion 56L1.
Among these, the standing portion 56L15 is formed in a substantially L shape in a plan view at a substantial center of the upper surface portion 56L1. The upright portion 56L15 is a cylindrical portion 7072 formed in the above-described guide lock 707 as the slide cam 56L slides in the direction approaching the transmission mechanism 55 (the direction of the arrow A1 in FIG. 30) (see FIGS. 16 and 20). 26) and the guide lock 707 is rotated.

That is, the cylindrical portion 7072 arranged on the groove portion 56L14 side from the standing portion 56L15 is indicated by a two-dot chain line arrow A3 in FIG. 30 when the first disk D1 having a large diameter is inserted into the apparatus main body 2. As described above, the guide lock 707 is rotated and positioned at a position separated from the upright portion 56L15.
Further, when the second disk D2 having a small diameter is inserted, the cylindrical portion 7072 contacts the upright portion 56L15, and rotates the guide lock 707 as the slide cam 56L slides. Thereafter, as indicated by the one-dot chain line arrow A4 in FIG. 30, the cylindrical portion 7072 moves in the arrow A2 direction of the slide cam 56L along the standing portion 56L15 and is positioned at a position that does not reach the standing portion 56L16.

The upright portions 56L16 and 56L17 are formed on the side opposite to the side on which the groove portions 56L12 to 56L14 are formed from the approximate center of the upper surface portion 56L1. By these standing portions 56L16 and 56L17, grooves 56L1A to 56L1F that engage with the above-described detection arm 705, guide arm 706, and guide lock 707 are formed on the upper surface portion 56L1.
Of these, the groove portion 56L1A is formed in a substantially T shape in plan view, surrounded by the standing portion 56L16 on the side close to the side surface portion 56L3 in the upper surface portion 56L1. When the upper unit 7 is attached to the lower unit 5, the cylindrical portion 70561 (see FIGS. 16, 21, and 22) of the detection arm 705 is inserted into the groove 56L1A.

  Specifically, when the detection arm 705 contacts the edge of the disk D and the detection arm 705 rotates, the cylindrical portion 70561 contacts the end portion 56L16 of the groove portion 56L1A in the direction of arrow A1 in FIG. The cam 56L is slid in the arrow A1 direction. By this sliding movement, the rack portion 56L11 and the second gear 553 are engaged with each other, and the sliding cam 56L further slides in the arrow A1 direction. At this time, as shown by the dotted line arrow A5 in FIG. 30, the cylindrical portion 70561 moves in the direction of the arrow A2 along the groove portion 56L1A, and comes into contact with the end portion of the rising portion 56L16 on the arrow A2 direction side in the groove portion 56L1A. .

The groove portion 56L1B is formed along the longitudinal direction on the opposite side of the upper surface portion 56L1 from the groove portion 56L1A. When the first disk D1 is inserted into the apparatus main body 2, the cylindrical portion 7073 (see FIGS. 16 and 26) formed on the guide lock 707 is engaged with the groove portion 56L1B.
That is, when the slide cam 56L slides in the direction of the arrow A1, the standing portion 56L15 and the cylindrical portion 7072 of the guide lock 707 come into contact with each other and the guide lock 707 rotates, the cylindrical portion 7073 of the guide lock 707 is As shown by a two-dot chain line arrow A6 in FIG. 30, the groove 56L1B is fitted. As a result, the guide lock 707 is locked in a rotated state, that is, in a state where the guide arm 706 is allowed to rotate.

  The groove portion 56L1C is formed at a substantially center in the direction orthogonal to the longitudinal direction of the upper surface portion 56L1 with respect to the groove portion 56L1B. When the second disk D2 is inserted into the apparatus main body 2, the cylindrical portion 7073 of the guide lock 707 is fitted into the groove portion 56L1C, as indicated by a one-dot chain line arrow A7 in FIG. Thereby, similarly to the case where the cylindrical portion 7073 is fitted in the groove portion 56L1B, the guide lock 707 is locked in a rotated state.

The groove portion 56L1D is formed in a substantially L shape in plan view near the end portion on the arrow A2 direction side from the groove portion 56L1C. When the first disk D1 is inserted into the apparatus main body 2, the cylindrical portion 70625 (see FIGS. 16 and 24) formed in the guide arm 706 enters the groove 56L1D.
That is, when the slide cam 56L slides and the rotation of the guide arm 706 is permitted, the detection arm 705 and the guide arm 706 rotate with the insertion of the first disk D1. At this time, the cylindrical portion 70625 of the guide arm 706 disposed in the vicinity of the groove portion 56L1E moves toward the groove portion 56L1C as the guide arm 706 rotates, as indicated by an arrow A8 indicated by a two-dot chain line in FIG. Thereafter, the cylindrical portion 70625 enters the groove portion 56L1D as the slide cam 56L moves in the arrow A1 direction, and further fits into a position moved in a direction perpendicular to the longitudinal direction of the slide cam 56L. Thereby, the rotation of the guide arm 706 is locked, and the detection arm 705 is locked in a state of being separated from the first disk D1.

The groove part 56L1E is formed outside the groove part 56L1D in a substantially L shape in plan view. The cylindrical portion 70625 of the guide arm 706 enters the groove 56L1E when the second disk D2 is inserted into the apparatus main body 2.
That is, when the second disk D2 contacts the detection arm 705, the rotation amount of the detection arm 705 is smaller than when the second disk D2 contacts the first disk D1, so that even if the slide cam 56L slides, The guide arm 706 does not rotate greatly. For this reason, the cylindrical portion 70625 of the guide arm 706 disposed in the vicinity of the groove portion 56L1E does not move to the groove portion 56L1C side, and the arrow A9 indicated by an alternate long and short dash line in FIG. 30 as the slide cam 56L moves in the arrow A1 direction. As shown, it enters the groove 56L1E. Here, when the slide cam 56L further moves, the cylindrical portion 70625 moves in a direction orthogonal to the longitudinal direction (arrow A1 direction) of the slide cam 56L and in a direction away from the groove 56L1A. Thereafter, the cylindrical portion 70625 is fitted in the back of the groove portion 56L1E, and the movement of the cylindrical portion 70625 is restricted. Thereby, the rotation of the guide arm 706 is locked, and the detection arm 705 is locked in a state of being separated from the second disk D2.

The groove portion 56L1F is formed in a substantially L shape in plan view at the end portion on the arrow A2 direction side from the groove portion 56L1A by the standing portions 56L16 and 56L17. When the first disk D1 is inserted into the apparatus main body 2, the cylindrical portion 70626 (see FIGS. 16 and 24) of the guide arm 706 enters the groove 56L1F.
That is, when the slide cam 56L slides in the direction of the arrow A1 and the guide arm 706 rotates as the first disk D1 is inserted, the cylindrical portion 70625 moves toward the groove 56L1C and the two-dot chain line in FIG. As indicated by an arrow A10, the cylindrical portion 70626 enters the groove portion 56L1F. When the slide cam 56L further slides in the direction of arrow A1, the cylindrical portion 70626 moves in the direction of arrow A2 along the groove 56L1F. Thereafter, as the cylindrical portion 70625 fits into the depth of the groove portion 56L1D and the guide arm 706 rotates, the cylindrical portion 70626 is substantially orthogonal to the arrow A1 direction and is away from the standing portion 56L17. And is positioned at a position away from the slide cam 56L. At this time, the rotation of the guide arm 706 is already locked by fitting the cylindrical portion 70625 into the groove portion 56L1D.

When the second disk D2 is inserted into the apparatus main body 2, the cylindrical portion 70626 does not enter the groove portion 56L1F and is located outside the slide cam 56L, as indicated by a dashed line arrow A11 in FIG. Positioned.
In the above description, the case where the disk D is inserted and the slide cam 56L slides in the direction of the arrow A1 has been described. However, in order to carry out the disk D, the slide cam 56L slides in the direction of the arrow A2. The operation is the reverse of the above description.

As shown in FIG. 31, grooves 56L21 and 56L22 and a protrusion 56L23 are formed on the bottom surface 56L2 of the slide cam 56L.
Of these, the groove portion 56L21 is formed in a stepped shape in plan view in the vicinity of the rack portion 56L11, and in the groove portion 56L21, a cylindrical portion 5712 provided on a swing arm 571 that constitutes an insertion preventing mechanism 57 described later. Inserted. As will be described in detail later, the swing arm 571 slides in the groove portion 56L21, and rotates as the slide cam 56L slides.

The groove portion 56L22 is formed in a substantially L shape in plan view at the end portion on the arrow A2 direction side, out of both end portions in the longitudinal direction of the slide cam 56L. A cylindrical portion 561L provided in a link arm 561 that also constitutes the lifting mechanism 56 is inserted into the groove portion 56L22, and the groove portion 56L22 is linked with the slide movement of the slide cam 56L with the cylindrical portion 561L as a power point. The arm 561 is rotated.
The protruding portion 56L23 is formed at the approximate center in the longitudinal direction of the bottom surface portion 56L2. The protrusion 56L23 is a portion that engages with a compression spring (not shown) provided in the cam arrangement portion 514L of the base frame 51 and receives a biasing force from the compression spring in the arrow A2 direction. For this reason, the slide cam 56L is urged in the opposite direction.

  As shown in FIGS. 29 and 32, grooves 56L31 and 56L32 are formed at both end portions in the longitudinal direction of the side surface portion 56L3 of the slide cam 56L. More specifically, a groove 56L31 is formed at the end of the side surface 56L3 where the rack 56L11 is formed, and a groove 56L32 is formed at the end opposite to the end. . A cylindrical portion 5221 formed on a surface of the holder 52 (see FIG. 5) facing the slide cam 56L engages with the grooves 56L31 and 56L32.

  The groove portions 56L31 and 56L32 include a rising groove portion 56L311 and 56L321 in which the cylindrical portion 5221 of the holder 52 slides when the holder 52 is raised, and a cylindrical portion 5221 when the holder 52 is lowered. Sliding descent grooves 56L312 and 56L322 are formed. The ascending groove portions 56L311 and 56L321 and the descending groove portions 56L312 and 56L322 have a shape similar to a magnetization curve, and are formed in substantially the same shape so as not to overlap each other.

(7-2) Configuration of the link arm 561 The link arm 561 connects the slide cam 56L and the slide cam 56R, rotates with the slide movement of the slide cam 56L, and is opposite to the slide direction of the slide cam 56L. An arm that slides the slide cam 56R in the direction. As shown in FIG. 7, the link arm 561 is a flat plate member made of metal having a substantially V shape in plan view, and the link arm placement portion 515 formed on the base frame 51 is connected to the lower surface of the base frame 51. Mounted from the side.

A hole portion 5611 through which a screw (not shown) for attaching the link arm 561 to the link arm arrangement portion 515 is inserted is formed at substantially the center of the link arm 561. The screw inserted through the hole portion 5611 is screwed into a screw hole 5151 formed in the link arm arrangement portion 515.
At both ends of the link arm 561, cylindrical portions 561L and 561R that protrude toward the base frame 51 and pass through openings 515L and 515R formed in the link arm arrangement portion 515 are provided. Among these, the cylindrical portion 561L provided on the right side in FIG. 7 engages with the groove portion 56L22 formed in the bottom surface portion 56L2 of the slide cam 56L via the opening portion 515L. Further, the cylindrical portion 561R provided on the left side in FIG. 7 engages with the groove portion 56R22 formed in the bottom surface portion 56R2 of the slide cam 56R through the opening portion 515R.

(7-3) Configuration of Slide Cam 56R FIGS. 33 to 36 are views showing the slide cam 56R. Specifically, FIG. 33 is a perspective view showing the slide cam 56R. 34 to 36 are views of the slide cam 56R as viewed from above, below, and from the side (side facing the holder 52). 33 to 36, the arrow A1 direction and the arrow A2 direction are the same as the arrow A1 direction and the arrow A2 direction described above.
The slide cam 56R is a synthetic resin flat plate member that forms a pair with the slide cam 56L, and is slidably disposed on a cam placement portion 514R (see FIGS. 4 and 5) formed on the base frame 51. When the disk D is stored, the slide cam 56R slides in the cam disposition portion 514R along the holder 52 in the direction away from the transmission mechanism 55 (see FIG. 6) (in the direction of arrow A2). Sometimes, it slides in the direction approaching the transmission mechanism 55 (direction of arrow A1). The slide cam 56R is urged in the direction of the arrow A2 by a compression spring (not shown) provided in the cam placement portion 514R.
33 to 36, the slide cam 56R includes an upper surface portion 56R1 facing the top frame 701, a bottom surface portion 56R2 facing the cam placement portion 514R of the base frame 51, and a side surface facing the holder 52. A portion 56R3 is provided.

As shown in FIGS. 33 and 34, the upper surface portion 56R1 is formed with standing portions 56R11 to 56R14 that stand up from the upper surface portion 56R1, and the rising portions 56R11 to 56R14 form groove portions 56R1A to 56R1D. ing.
Specifically, the standing portion 56R11 is formed in a substantially L shape in plan view from the approximate center to one end portion in the longitudinal direction (end portion in the direction of the arrow A1) on the upper surface portion 56R1. When the second disc D2 is inserted, the cylindrical portion 7049 (see FIGS. 16 and 20) of the support arm 704 that abuts on the second disc D2 and rotates is brought into contact with the standing portion 56R11. Then, when the support arm 704 moves, the cylindrical portion 7049 moves along the groove portion 56R1A formed by the upright portion 56R11 as indicated by a dotted line arrow B1 in FIG.

The upright portions 56R12 and 56R13 are formed at approximately the center of the upper surface portion 56R1 so as to be arranged in parallel along the longitudinal direction. Of these, the standing portion 56R12 is formed on the side surface portion 56R3 side, and the standing portion 56R13 is bent in the direction in which one end portion in the longitudinal direction (the end portion in the arrow A2 direction) is close to the side surface portion 56R3. Is formed.
A groove portion 56R1B having a substantially L shape in plan view formed by the upright portions 56R12 and 56R13 has an edge of the second disk D2 inserted into the apparatus main body 2 as shown by an alternate long and short dash line arrow B2 in FIG. The cylindrical portion 704B (see FIG. 16) of the support arm 704 rotated in contact with the arm enters. Then, when the cylindrical portion 704B is fitted into the groove portion 56R1B, the rotated support arm 704 is locked in a state of being separated from the edge of the second disk D2.

The standing portion 56R14 is formed on the opposite side of the standing portion 56R12 with the rising portion 56R13 interposed therebetween.
In the substantially L-shaped groove portion 56R1C formed by the upright portion 56R14 and the upright portion 56R13, the support rotated in contact with the first disk D1 as shown by an arrow B3 of a two-dot chain line in FIG. The cylindrical portion 704B of the arm 704 enters. Then, as in the case of the groove portion 56R1B, the cylindrical portion 704B is fitted into the groove portion 56R1C, so that the support arm 704 is locked in a state separated from the edge of the first disk D1.

The groove portion 56R1D is formed so as to be surrounded by an upright portion 56R14 formed in a staircase shape in plan view. The cylindrical portion 7084 (see FIGS. 16 and 27) of the chuck arm 708 is inserted into the groove portion 56R1D.
That is, the cylindrical portion 7084 is located at the end of the groove portion 56R1D on the arrow A2 direction side in FIG. Then, as the slide cam 56R slides in the arrow A2 direction, the slide cam 56R moves in the direction indicated by the dotted line arrow B4 in FIG. 34 along the groove 56R1D. Due to the movement of the cylindrical portion 7084 along the groove portion 56R1D, the chuck arm 708 is rotated, and the chuck arm 709 (see FIG. 15) is rotated accordingly, whereby the chuck arms 708, 709 and the chuck pulley are rotated. The engagement with 710 (see FIG. 15) is released.

As shown in FIG. 35, the bottom surface portion 56R2 is formed with an engaging portion 56R21 that engages with a shutter lever 58 described later on one end portion in the longitudinal direction (end portion in the direction of the arrow A1). On one side surface of the engaging portion 56R21 facing each other, a tapered portion 56R211 having a thickness dimension that decreases in the direction of the arrow A1 is formed.
A bent portion 5851 (see FIGS. 44 to 45) formed on the shutter lever 58 abuts on the tapered portion 56R211. When the slide cam 56R slides in the direction of the arrow A1 when the disk D is unloaded, the bent portion 5811 in contact with the tapered portion 56R211 moves downward along the tapered portion 56R211 so that the other end of the shutter lever 58 is moved. The shutter 702 is pushed up. The pushing up of the shutter 702 by the shutter lever 58 will be described in detail later.

On the bottom surface portion 56R2, a groove portion 56R22 having a substantially rectangular shape in plan view is formed at an end portion (an end portion on the arrow A2 direction side) opposite to the end portion where the engaging portion 56R21 is formed. The cylindrical portion 561R of the link arm 561 is inserted into the groove portion 56R22. For this reason, when the slide cam 56L slides to one side, the cylindrical portion 561R serves as an action point, and the slide cam 56R slides to the other.
Further, a projecting portion 56R23 that engages with a compression spring (not shown) provided in the cam placement portion 514R is formed in the approximate center of the bottom surface portion 56R2.

As shown in FIG. 36, at both ends in the longitudinal direction of the side surface portion 56R3, which is the surface facing the holder 52, there is a magnetization curve-like shape that is substantially symmetrical to the ascending groove portions 56L311 and 56L321 formed on the slide cam 56L. Two groove portions 56R31 and 56R32 are formed. Specifically, the groove portions 56R31 and 56R32 are formed substantially symmetrically with respect to the ascending groove portions 56L311 and 56L321, respectively, with the approximate center in the directions of the arrows A1 and A2 as the center. A cylindrical portion 5221 formed on the holder 52 engages with the grooves 56R31 and 56R32.
Further, a pressing portion 56R33 that abuts on and presses the third switch 544 (see FIG. 6) provided on the control board 54 is formed at the tip of the side surface portion 56R3 in the arrow A1 direction. Has been.

(7-4) Operation of Lifting Mechanism 56 Here, lifting and lowering of the holder 52 by the lifting mechanism 56 will be described.
37 to 39 are diagrams for explaining the raising and lowering of the holder 52 and the optical unit 4 by the raising and lowering mechanism 56. FIG. Specifically, FIG. 37 is a diagram showing a state where the holder 52 is lowered, and FIG. 38 is a diagram showing a state where the holder 52 is raised. Moreover, FIG. 39 is a figure which shows the state in the middle of the holder 52 falling. 37 to 39, the base frame 51, the disk D, and the like are not shown. Moreover, the arrow A1 direction and the arrow A2 direction shown in FIGS. 37 to 39 are the same directions as the arrow A1 direction and the arrow A2 direction shown in FIGS.

First, raising of the holder 52 and the optical unit 4 (movement in the direction of the arrow Y1) will be described.
When the disk D is not inserted into the apparatus main body 2, the slide cam 56 </ b> L constituting the elevating mechanism 56 is separated from the transmission mechanism 55 at the end of the slide cam 56 </ b> L in the arrow A <b> 1 direction as shown in FIG. It is arranged at the position. At this time, the rack portion 56 </ b> L <b> 11 formed on the slide cam 56 </ b> L does not mesh with the second gear 553 constituting the transmission mechanism 55. Further, the slide cam 56R is disposed at a position where the end of the slide cam 56R in the arrow A1 direction is close to the seventh gear 559 of the transmission mechanism 55.

Further, a holder 52 that supports the optical unit 4 is disposed at a substantial center of the base frame 51 so as to be movable in the vertical direction so as to be sandwiched between the slide cams 56L and 56R. Four cylindrical portions 5221 (see FIG. 5 for details) formed on the holder 52 are formed on the groove portions 56L31 and 56L32 formed on the side surface portion 56L3 of the slide cam 56L and the side surface portion 56R3 of the slide cam 56R, respectively. The groove portions 56R31 and 56R32 are inserted.
In this state, the third switch 544 provided on the control board 54 is pressed by the pressing portion 56R33 (see FIG. 36) of the slide cam 56R, and the third switch 544 is in the on state.

  Here, the disk D is inserted from the opening 2A of the apparatus main body 2, the detection arm 705 (see FIGS. 17 and 21) constituting the upper unit 7 is rotated, and the slide cam 56L is moved in the arrow A1 direction. When moved, the rack portion 56L11 of the slide cam 56L meshes with the second gear 553 of the transmission mechanism 55, and the slide cam 56L further slides in the arrow A1 direction. As the slide cam 56L moves in the arrow A1 direction, the link arm 561 rotates, and the slide cam 56R slides in the arrow A2 direction.

As the slide cams 56L and 56R slide, the end of the holder 52 on the slide cam 56L side and the end of the slide cam 56R side simultaneously rise (move in the direction of arrow Y1).
Specifically, the cylindrical portion 5221 formed on the slide cam 56L side of the cylindrical portion 5221 of the holder 52 moves along the rising grooves 56L311 and 56L321 among the grooves 56L31 and 56L32 of the slide cam 56L. The cylindrical portion 5221 formed on the slide cam 56R side moves along the grooves 56R31 and 56R32 of the slide cam 56R. Here, movement of the holder 52 in the arrow A1 direction and the arrow A2 direction is restricted by an upright portion 512 formed in the base frame 51, and a vertical direction (in the direction of the arrow Y1 and the notch 5121 formed in the upright portion 512). Since only movement in the direction of arrow Y2 is permitted, the holder 52 rises along the groove portions 56L311, 56L321, 56R31, 56R32.

At this time, the groove portions 56R31 and 56R32 have magnetization curve shapes that are substantially symmetrical with respect to the ascending groove portions 56L311 and 56L321. Each part rises at the same time. That is, the holder 52 and the optical unit 4 are raised perpendicular to the surface of the disk D. Then, when the slide cams 56L and 56R have finished moving in the direction of the arrow A1 and the direction of the arrow A2, the holder 52 is positioned farthest from the base frame 51 as shown in FIG.
As the holder 52 is raised, the optical unit 4 attached to the holder 52 is raised, and the turntable 411 of the optical unit 4 chucks the disk D.
In this state, the contact state between the pressing portion 56R33 of the slide cam 56R and the third switch 544 is released, and the third switch 544 is in an off state.

Next, the lowering of the holder 52 and the optical unit 4 (movement in the direction of the arrow Y2) will be described.
When the motor 53 rotates in the reverse direction from the state shown in FIG. 38, the slide cam 56L moves in the direction of arrow A2, and the slide cam 56R moves in the direction of arrow A1 via the link arm 561 connected to the slide cam 56L. Move to. At this time, out of the cylindrical portion 5221 formed on the holder 52, the cylindrical portion 5221 on the slide cam 56L side has a groove 56L31, 56L32 formed on the slide cam 56L, and the groove 56L312 for lowering from the grooves 56L311, 56L321 for raising. , 56L322 side is switched to the engaged state. Unlike the shape of the groove portions 56R31 and 56R32 of the slide cam 56R, the shape of the groove portions 56L312 and 56L322 for the lowering is different from the shape of the groove portions 56R31 and 56R32, and the shape of the groove portions 56R31 and 56R32 The groove portions 56L312 and 56L322 have a shape that causes the cylindrical portion 5221 to descend quickly.

For this reason, as shown in FIG. 39, a time difference occurs in the lowering of the end portion on the slide cam 56L side and the end portion on the slide cam 56R side in the holder 52, and the end portion on the slide cam 56L side rapidly rises first. It descends and the end on the slide cam 56R side gently descends. That is, the holder 52 and the optical unit 4 are lowered while being inclined with respect to the lowering direction (the direction of the arrow Y2). In this state, the third switch 544 is pressed again by the pressing portion 56R33 of the slide cam 56R, and the third switch 544 is switched from the off state to the on state.
Then, when the movement of the slide cams 56L and 56R in the direction of the arrow A2 and the direction of the arrow A1 is finished and the lowering of the holder 52 and the optical unit 4 is finished, the holder 52 and the optical unit 4 are again shown in FIG. Will return to a position along the surface of the disc D to be inserted.

By such an elevating mechanism 56, when the optical unit 4 and the holder 52 are raised, that is, when the turntable 411 of the optical unit 4 is brought into contact with the disk D, the optical unit is perpendicular to the surface of the disk D. 4 can be raised, the turntable 411 of the optical unit 4 can be brought into contact with and fitted to the hole DC formed substantially at the center of the disk D accurately and appropriately.
On the other hand, when the optical unit 4 and the holder 52 are lowered, that is, when the turntable 411 of the optical unit 4 is separated from the disk D, the optical unit 4 and the holder 52 are inclined with respect to the surface of the disk D and the downward direction. Since the unit 4 can be lowered, the force required for the separation between the disk D and the turntable 411 of the optical unit 4 can be reduced. Therefore, the contact state between the disk D and the optical unit 4 can be easily released.

(8) Insertion prevention mechanism 57
The insertion preventing mechanism 57 is a mechanism that prevents another disk D from being inserted into the apparatus main body 2 when the disk D is already stored in the apparatus main body 2. As shown in FIG. 4, the insertion prevention mechanism 57 is disposed below the transmission mechanism 55 on the base frame 51 on the side of the disk storage opening 2 </ b> A. The insertion preventing mechanism 57 includes a swing arm 571, a lock slider 572, and two lock levers 573.

(8-1) Configuration of Swing Arm 571 FIG. 40 is a view of the swing arm 571 as viewed from above.
The swing arm 571 is an arm that is connected to the slide cam 56L and slides the lock slider 572 as the slide cam 56L slides.
As shown in FIG. 40, the swing arm 571 is a metal flat plate member having a substantially L shape in plan view. The swing arm 571 has a hole portion 5711, a screw hole 5714, and an opening portion 5715, and cylindrical portions 5712 and 5713.

The hole 5711 is formed in the approximate center of the swing arm 571. The hole 5711 is inserted with the first gear 552 (see FIG. 6) that constitutes the transmission mechanism 55 described above, and a screw (rotatably supporting the swing arm 571 on the base frame 51 together with the first gear 552). (Not shown) is inserted.
The cylindrical portions 5712 and 5713 are provided at both ends in the longitudinal direction of the swing arm 571 so as to protrude in a direction facing the transmission mechanism 55. Of these, the cylindrical portion 5712 provided on the side close to the slide cam 56L when the swing arm 571 is disposed on the base frame 51, that is, on the end far from the hole 5711 is formed on the slide cam 56L. Engaging with the groove 56L21, the swing arm 571 is rotated in the direction of arrow C1 or arrow C2 about the hole 5711 as the slide cam 56L slides.
The cylindrical portion 5713 is fitted into an opening 5721 formed in the lock slider 572 and slides the lock slider 572 in a direction orthogonal to the insertion direction of the disk D as the swing arm 571 rotates.

A screw hole 5714 and a substantially arc-shaped opening 5715 are formed between the hole 5711 and the cylindrical part 5713 in the swing arm 571.
A screw (not shown) through which the third gear 554 constituting the transmission mechanism 55 is inserted is screwed into the screw hole 5714. When the disk D is not inserted, the screw hole 5714 engages the third gear 554 with the first gear 552 and the fourth gear 555, and the disk D is inserted and the swing arm 571 rotates in the direction of the arrow C1. When it moves, it is formed at a position where the meshing of the third gear 554 and the fourth gear 555 is released. Therefore, when the slide cam 56L slides in the direction approaching the transmission mechanism 55 and the swing arm 571 rotates in the direction of the arrow C1, the engagement of the third gear 554 and the fourth gear 555 is released, The driving force of the motor 53 (see FIG. 6) is not transmitted to the transport unit 6.
The opening 5715 is an opening so as not to interfere with the fourth gear 555 of the transmission mechanism 55 when the swing arm 571 rotates, and the fourth gear 555 is connected to the base frame 51 in the opening 5715. A screw (not shown) that pivotally supports the screw is inserted.

(8-2) Configuration of Lock Slider 572 FIG. 41 is a perspective view showing the lock slider 572. FIG. 42 is a view of the lock slider 572 as viewed from above. 41 and 42, the arrow C3 direction and the arrow C4 direction indicate the sliding movement direction of the lock slider 572, and the arrow C3 direction and the arrow C4 direction indicate the conveyance direction of the disk D to the apparatus main body 2. This is a direction orthogonal to the aforementioned arrow A1 direction and arrow A2 direction.
The lock slider 572 is disposed below the belt 557 constituting the transmission mechanism 55, and rotates and locks the two lock levers 573. As shown in FIGS. 41 and 42, the lock slider 572 is configured as a flat plate member having a substantially rectangular shape in plan view. The lock slider 572 is fitted with the cylindrical portion 5713 of the swing arm 571 at one end portion in the longitudinal direction, that is, the end portion in the direction close to the fifth gear 556 of the transmission mechanism 55 (arrow C4 direction). An opening 5721 having a substantially rectangular shape in plan view is formed.

The lock slider 572 has four openings 5722 to 5725 having a substantially rectangular shape in plan view along the longitudinal direction on one end side in a direction orthogonal to the longitudinal direction of the lock slider 572. In addition, an opening 5726 having a substantially rectangular shape in plan view is formed in the approximate center on the other end side.
Among these openings 5722 to 5726, substantially cylindrical protrusions (not shown) formed on the base frame 51 are slidably fitted into the openings 5722, 5725, and 5726. That is, the openings 5722, 5725, and 5726 function as guide holes that guide the slide movement of the lock slider 572 in the direction (arrow C3 direction and arrow C4 direction) perpendicular to the insertion direction of the disk D in the base frame 51. .

  Further, a support portion (not shown) that supports one end side of a tension spring (not shown) provided on the base frame 51 is inserted into the opening 5723 at a position inside the opening 5723. Further, a support portion 57241 (FIG. 42) for supporting the other end side of the tension spring is formed in the opening 5724. The lock slider 572 is urged in the direction of the arrow C4 by the tension spring.

Further, at substantially the center of the lock slider 572, along the longitudinal direction of the lock slider 572, the lock lever 573 is exposed, and lever exposed portions 5727 and 5728 that engage with the lock lever 573 are formed.
Among these, the lever exposed portion 5727 formed on the opening 5721 side is formed with openings 57271 and 57272 having a substantially rectangular shape in plan view in parallel along the longitudinal direction. Among these, the lock lever 573 is located in the opening 57271 having a large dimension, and the opening 57271 is surrounded by an upright part 57273 that stands up from the upper surface of the lock slider 572. Further, a support portion (not shown) of the base frame 51 that rotatably supports the lock lever 573 is inserted into the opening portion 57272.

The lever exposed portion 5727 is formed with a stepped portion 57274 that contacts the lock lever 573 and rotates the lock lever 573 in a region sandwiched between the openings 57271 and 57272. The stepped portion 57274 rotates the lock lever 573 and maintains the posture of the lock lever 573 so that the lock lever 573 does not protrude from the lock slider 572 even when the disk device 1 is tilted. .
Furthermore, a pressing portion 57275 that presses the lock lever 573 is formed in the lever exposure portion 5727 adjacent to the opening 57271. The pressing portion 57275 is locked when the swing arm 571 rotates in the direction of arrow C1 in FIG. 40 and the lock slider 572 slides in a direction away from the fifth gear 556 of the transmission mechanism 55 (arrow C3 direction). The lock lever 573 protrudes from the lever exposure portion 5727 by pressing against the lever 573.

  Similarly to the lever exposed portion 5727, the lever exposed portion 5728 is formed with openings 57281, 57282, an upright portion 57283, a stepped portion 57284, and a pressing portion 57285. Since these configurations and operations are the same as the configurations and operations of the respective portions 57271 to 57275 of the lever exposure portion 5727 described above, description thereof will be omitted.

(8-3) Configuration of Lock Lever 573 FIG. 43 is a diagram showing the lock lever 573. Specifically, FIG. 43 is a view of the lock lever 573 as viewed from the insertion direction of the disk D when the lock lever 573 is disposed on the base frame 51. Note that the arrow C3 direction and the arrow C4 direction shown in FIG. 43 are the same as the arrow C3 direction and the arrow C4 direction shown in FIG. 41 and FIG.
As shown in FIGS. 4 and 5, the lock lever 573 protrudes from the lever exposed portions 5727 and 5728 (see FIGS. 51 and 42) of the lock slider 572 as the lock slider 572 slides, and opens the opening 2A. This is a lever that prevents the disc D from being inserted. As shown in FIG. 43, the lock lever 573 is formed in a substantially rectangular parallelepiped shape as a whole.
Such a lock lever 573 protrudes from one end side in the longitudinal direction of the lock lever 573 to the front side and the back side of the lock lever 573 and is supported by a support portion (not shown) of the base frame 51. A cylindrical shaft portion 5731 is formed. By this shaft portion 5731, the lock lever 573 is supported by the base frame 51 so as to be rotatable in the arrow C5 direction and the arrow C6 direction.

  Further, on the front side of the lock lever 573, a posture maintaining portion 5732 having the same center as the shaft portion 5731 and having a substantially circular shape is formed. This posture maintaining portion 5732 is on the right side in FIG. 43, that is, in a state in which the longitudinal direction of the lock lever 573 is along the longitudinal direction of the lock slider 572 and the lock lever 573 is not exposed from the lever exposing portions 5727 and 5728. The lower side in the state) has a shape that is cut out. Stepped portions 57274 and 57284 (shown by a two-dot chain line in FIG. 43) formed in the lever exposed portions 5727 and 5728 come into contact with the notch portion 57321.

  That is, when the lock slider 572 is slid in the direction of the arrow C4 when the disk D is unloaded, the stepped portions 57274 and 57284 of the lever exposed portions 5727 and 5728 come into contact with the notch portion 57321, and the lock lever 573 is moved to the lever. The lever is exposed from the exposed portions 5727 and 5728 so as not to be exposed from the lever exposed portions 5727 and 5728 by rotating in the direction of arrow C6. Then, when the stepped portions 57274 and 57284 are stopped at a position corresponding to the notch portion 57321, the rotation of the lock lever 573 around the shaft portion 5731 is restricted.

In the lock lever 573, the abutting portion 5733 with which the pressing portions 57275 and 57285 formed on the lever exposed portions 5727 and 5728 of the lock slider 572 abut on the end portion on which the shaft portion 5731 and the posture maintaining portion 5732 are formed. Is formed.
Specifically, when the lock lever 573 is in the above-described unlocked state, the pressing portions 57275 and 57285 come into contact with the contact portion 5733 as the lock slider 572 slides in the arrow C3 direction. As the lock slider 572 further slides in the direction of the arrow C3, the pressing portions 57275 and 57285 push the contact portion 5733, so that the lock lever 573 rotates in the direction of the arrow C5 around the shaft portion 5731. Move. At this time, the stepped portions 57274 and 57284 are not positioned within the rotation range of the posture maintaining portion 5732, and the lock lever 573 is allowed to rotate.
As a result, the lock lever 573 is exposed from the lever exposed portions 5727 and 5728 of the lock slider 572 and is in a state of standing out of the plane from the upper surface of the lock slider 572 (lock state).

  In the lock lever 573, an insertion restricting portion 5734 is formed at the end opposite to the end where the contact portion 5733 is formed. Although not shown in detail in the insertion restricting portion 5734, the tip is bent in a substantially L shape in a side view on the front side. This insertion restricting portion 5734 is higher than the raised portions 57273 and 57283 of the lever exposed portions 5727 and 5728 of the lock slider 572 when the lock lever 573 is in the locked state, and is formed on the bracket 63 of the transport unit 6. It is exposed upward from the openings 6345 and 6346 (see FIG. 9) and protrudes to a position corresponding to the opening 2A for disc storage. The insertion restricting portion 5734 is exposed from the lever exposing portions 5727 and 5728 when the lock lever 573 is locked, thereby preventing the disc D from being inserted.

(8-4) Operation of Insertion Prevention Mechanism 57 Here, the operation of the insertion prevention mechanism 57 will be described.
When the slide cam 56L slides to the transmission mechanism 55 side, that is, the opening 2A side (arrow A1 direction side), the swing arm 571 rotates about the hole 5711 in the arrow C1 direction in FIG. As the swing arm 571 rotates, the lock slider 572 slides in the direction of the arrow C3 in FIGS.
By the sliding movement of the lock slider 572, the pressing portions 57275 and 57285 formed on the lock slider 572 press the contact portion 5733 of the lock lever 573, and the lock lever 573 is centered on the shaft portion 5731 in FIG. It rotates in the direction of the middle arrow C5 to enter the locked state.
As a result, the lock lever 573 protrudes from the lock slider 572, and the insertion restricting portion 5734 of the lock lever 573 passes through the openings 6346 and 6347 (see FIGS. 9 and 10) formed in the bracket 63 of the transport unit 6. As a result, the opening 2A is blocked and the insertion of the disk D from the opening 2A is restricted.

Further, when the slide cam 56L slides in a direction away from the transmission mechanism 55, that is, in a direction away from the opening 2A (arrow A2 direction), the swing arm 571 is centered on the hole 5711 in the arrow C2 direction in FIG. It rotates and slides the lock slider 572 in the direction of arrow C4 in FIGS.
Due to the sliding movement of the lock slider 572, the stepped portions 57274 and 57284 formed on the lock slider 572 come into contact with the notch portion 57321 of the posture maintaining portion 5732 of the lock lever 573. For this reason, the lock lever 573 is rotated in the direction of arrow C6 in FIG.
As a result, the insertion restricting portion 5734 of the lock lever 573 is not exposed above the transport unit 6 and the lock lever 573 is housed in the openings 57271 and 57281 of the lock slider 572, so that the opening 2A is unblocked. Thus, the disc D can be inserted from the opening 2A.

  With such an insertion preventing mechanism 57, when the disk D is inserted into the apparatus main body 2, it is possible to prevent another disk D from being inserted into the apparatus main body 2. It is possible to prevent the disk D from being damaged and to prevent the reading and recording of information on the disk D from being hindered. Further, since the other disk D is not inserted while the disk D stored in the apparatus main body 2 is rotating, it is possible to prevent the components inside the apparatus main body 2 from being damaged.

(9) Shutter lever 58
(9-1) Configuration of Shutter Lever 58 FIG. 44 is a perspective view showing the shutter lever 58.
The shutter lever 58 is an integrally molded product made of synthetic resin that engages with the slide cam 56R to push up the shutter 702 that covers the opening 2A when the disk D is unloaded and opens the opening 2A. As shown in FIG. 6, the shutter lever 58 is rotatably supported by the base frame 51 below the seventh gear 559 constituting the transmission mechanism 55 (on the base frame 51 side), and is attached to the bracket 63 of the transport unit 6. One end of the shutter lever 58 protrudes from the formed opening 6335 (see FIG. 9), thereby pushing up the shutter 702.
As shown in FIG. 44, the shutter lever 58 has a pair of shaft portions 581 and 582, a mounting portion 583, a locking portion 584, arm portions 585 and 586, and an inclined portion 587. .

The pair of shaft portions 581 and 582 are formed substantially at the center of the shutter lever 58 so as to protrude outward from the shutter lever 58. These shaft portions 581 and 582 are formed in a substantially cylindrical shape and are rotatably supported by support portions (not shown) formed on the base frame 51. That is, the shutter lever 58 rotates around the shaft portions 581 and 582.
The attachment portion 583 is formed in a substantially cylindrical shape at a position between the pair of shaft portions 581, 582, one end of the attachment portion 583 is locked to the base frame 51, and the other end is near the attachment portion 583. A torsion spring (not shown) locked to the formed locking portion 584 is attached. By this torsion spring, the shutter lever 58 is urged so as to be in a state along the base frame 51, that is, in a state where it does not contact the shutter 702.

The arm portions 585 and 586 are formed at both end portions of the shutter lever 58 with the shaft portion 581 interposed therebetween, and the arm portions 585 and 586 extend in a direction substantially orthogonal to the axial direction of the shaft portion 581.
Among these, a bent portion 5851 that is bent in a substantially L shape in plan view is formed at the tip of the arm portion 585. The bent portion 5851 is in contact with an engaging portion 56R21 (see FIG. 35) formed on the slide cam 56R. When the slide cam 56R slides in the direction close to the shutter lever 58 (the direction of the arrow A1 described above), the bent portion 5851 abuts on the taper portion 56R211 formed on the engagement portion 56R21, and the slide cam 56R With the further slide movement of 56R (movement in the direction of arrow A1), the shutter lever 58 is rotated about the shaft portions 581 and 582. That is, the bent portion 5851 becomes a power point in the shutter lever 58.

  The arm portion 586 has a substantially L-shape in a side view, which extends in a direction away from the shaft portion 581 and is bent at a substantially right angle toward the upper side. A pressing portion 5861 that bends substantially at a right angle and abuts against an abutting portion 7024 formed on the shutter 702 as the shutter lever 58 is rotated to push up the shutter 702 is formed. The pressing portion 5861 is normally disposed so as not to protrude from the opening 6335 formed in the bracket 63 of the transport unit 6, and protrudes from the opening 6335 as the shutter lever 58 rotates to push up the shutter 702. . That is, the pressing portion 5861 becomes an action point in the shutter lever 58.

  The inclined portion 587 is formed at a position closer to the arm portion 586 when viewed from the shaft portions 581 and 582. The inclined portion 587 is formed so as to be inclined with respect to the axial direction of the shaft portions 581 and 582, and the protruding portion 61R19 formed on the arm main body 61R1 of the front arm 61R contacts the inclined portion 587. When the protrusion 61R19 comes into contact and the inclined portion 587 is pressed by the protrusion 61R19, the shutter lever 58 rotates in a direction opposite to the direction in which the pressing portion 5861 of the arm portion 584 pushes up the shutter 702. . By the rotation of the shutter lever 58, the pressing portion 5861 is positioned at a position where it does not protrude from the opening 6335 of the bracket 63.

(9-2) Operation of Shutter Lever 58 Here, the operation of the shutter lever 58 will be described.
45 is a view of the shutter lever 58 as viewed from the side, and FIG. 46 is a view of the shutter lever 58 as viewed from below. 45 and 46, the directions indicated by the arrows A1 and A2 are the same as the directions of the arrows A1 and A2 described above.
As described above, when the slide cam 56R slides in the direction approaching the shutter lever 58, the shutter lever 58 abuts on the taper portion 56R211 of the slide cam 56R to rotate the shutter lever 58 and press the pressing portion. 5861 pushes up the shutter 702.

  That is, when the slide cam 56R moves in the direction of the arrow A1 when the disk D is unloaded, the bent portion 5851 formed on the arm portion 585 of the shutter lever 58 is moved to the arrow A1 of the slide cam 56R as shown in FIGS. It abuts on the tapered portion 56R211 of the engaging portion 56R21 formed at the end portion on the direction side. As shown in FIG. 45, the taper portion 56R211 is formed such that the thickness dimension on the distal end side (arrow A1 direction side) of the slide cam 56R is small, and the thickness dimension increases toward the arrow A2 direction. Therefore, when the slide cam 56R slides further in the direction of the arrow A1 with the bent portion 5851 in contact with the tapered portion 56R211, the shutter lever 58 uses the bent portion 5851 as a power point and the shaft portions 581 and 582 as fulcrums. 45, it rotates in the direction of arrow E1.

When the shutter lever 58 rotates, the pressing portion 5861 of the arm portion 586 serving as the action point protrudes from the opening 6335 formed in the bracket 63 of the transport unit 6 described above. The pressing portion 5861 abuts on the abutting portion 7024 of the shutter 702 provided above the bracket 63 to push up the shutter 702 to open the opening 2A.
Thereafter, when the disk D is carried out, the protrusion 61R19 (see FIG. 10) of the front arm 61R comes into contact with the inclined portion 587, and the shutter lever 58 is rotated in the direction of arrow E2 in FIG. Therefore, as indicated by a two-dot chain line in FIG. 46, the bent portion 5851 is detached from the tapered portion 56R211 and abuts against the side surface of the slide cam 56R that forms the tapered portion 56R211.

By the rotation of the shutter lever 58, the pressing portion 5861 that has pushed up the shutter 702 is lowered and positioned at a position lower than the bracket 63. At this time, the disk D has been unloaded into the opening 2A, and when the disk D is taken out from the opening 2A, the shutter 702 is urged by a biasing force of a torsion spring (not shown) attached to the shutter 702. The opening 2A is closed.
By such a shutter lever 58, except when the user inserts the disk D, the shutter 702 is pushed up only when the disk D is carried out, and the opening 2A is opened. Intrusion can be suppressed.

(10) Control unit 3
As described above, the control unit 3 is configured as a circuit board that controls the apparatus main body 2. The control unit 3 includes a light emitting unit of the photosensor 703 (see FIG. 15) provided in the upper unit 7 and a light receiving unit 541 (see FIG. 6) of the control board 54 provided in the lower unit 5. When it is detected that D is inserted, the motor 53 (see FIG. 6) is driven. Thus, the disk D is carried into the apparatus main body 2 by the transport unit 6 and the optical unit 4 is moved upward by the elevating mechanism 57. Further, the control unit 3 drives the motor 53 in the reverse direction when a disk D carry-out signal is input. Thereby, the downward movement of the optical unit 4 and the unloading of the disk D by the transport unit 6 are performed.

FIG. 47 is a block diagram showing a functional configuration of the control unit 3.
As shown in FIG. 47, the control unit 3 includes a main control unit 31, a state determination unit 32, and a drive control unit 33.
Among these, the main control unit 31 controls the entire apparatus body 2 including drive control of the optical unit 4. For example, the main control unit 31 controls the driving of the motors 41 and 43 and the pickup 42 and controls the output of information read from the disk D by the pickup 42. The main control unit 31 also performs communication control of devices connected to the apparatus body 2.

The state determination unit 32 and the drive control unit 33 perform drive control of the motor 53 when the disk D is transported.
Among these, the state determination unit 32 is a control signal input from the control board 54, that is, an on / off state indicating the on / off state of each of the light receiving unit 541, the first switch 542, the second switch 543, and the third switch 544. A signal is acquired, and the conveyance state of the disk D is determined based on each on / off signal.
That is, when the disc D is loaded, the state determination unit 32 drives the motor 53 by the drive control unit 33 when the light receiving unit 541 is turned on, and drives the motor 53 by the drive control unit 33 when the third switch 544 is turned off. Then, the driving of the motor 53 is stopped.
Further, when the disk D is unloaded, the state determination unit 32 determines whether the disk D is the first disk D1 or the second disk D2 from the on / off state of the light receiving unit 541, and the first disk D1. When the second switch 543 is turned off, the drive controller 33 stops the driving of the motor 53. When the second switch D543 is the second disk D2, the first switch 542 is turned off. Then, the drive control unit 33 stops the drive of the motor 53.

The drive control unit 33 outputs a drive signal of the motor 53 to the motor driver 545 of the control board 54 based on the determination result of the transport state of the disk D by the state determination unit 32.
Specifically, the drive control unit 33 outputs a drive signal for rotating the motor 53 forward to the control board 54 when the disk D is loaded, and outputs a drive signal for rotating the motor 53 reversely when the disk D is unloaded. In each case, when stopping the driving of the motor 53, the drive control unit 33 outputs a motor stop signal to the control board 54.
The carry-in process SA and the carry-out process SB executed by the state determination unit 32 and the drive control unit 33 will be described in detail later.

(11) Transport of Disk D Hereinafter, with regard to the operation of the apparatus main body 2 during the transport of the disk D into the apparatus main body 2, the first disk D1 and the second disk D2 having a smaller diameter than the first disk D1 This will be explained separately for the cases.
(11-1) Transport of First Disk D1 FIGS. 48 to 59 are diagrams showing a process of transporting the first disk D1 into the apparatus main body 2. FIG. 60 and 61 are transition diagrams showing the on / off states of the light receiving unit 541 and the switches 542 to 544 when the first disk D1 is loaded and unloaded. 48 to 59 show a state in which the top frame 701 is removed from the apparatus main body 2. In FIGS. 48 to 54, 56 and 58, each member attached to the top frame 701 is shown. Reference numerals 704 to 707 are shown by two-dot chain lines. 55, 57, and 59 show a state in which the transport unit 6 is omitted from the states of FIGS. 54, 56, and 58. 48 to 59, the optical unit 4 shows only the turntable 411, and the other components are not shown.
The first disk D1 inserted into the apparatus main body 2 through the disk storing opening 2A is stored in the apparatus main body 2 through the process shown in FIGS.

  Specifically, when the first disk D1 is inserted into the opening 2A so as to push up the shutter 702 (see FIGS. 16 and 17), light from the light emitting part of the photosensor 703 provided on the top frame 701 ( 48 to 54, 56, and 58) are blocked by the first disk D1, and the light receiving portion P of the control board 54 provided on the base frame 51 is shown in FIG. 541 cannot receive the light and is turned off, and the state determination unit 32 of the control unit 3 detects the insertion of the disk D (first disk D1). By this insertion detection, driving of the motor 53 is started, the driving force of the motor 53 is transmitted to the transport unit 6 via the transmission mechanism 55, and the transport unit 6 is driven. In this state, as shown in FIG. 60, the first switch 542 and the second switch 543 provided on the control board 54 (see FIG. 6) are in the off state, and the third switch 544 is in the on state. It has become.

  When the first disk D1 is further inserted, as shown in FIG. 48, the edge of the first disk D1 contacts the first rollers 61L5 and 61R5 provided on the opening 2A side in the front arms 61L and 61R. In contact therewith, it is gripped by the first rollers 61L5 and 61R5. In this case, in FIG. 48, the first roller 61L5 that grips the left edge of the first disk D1 rotates counterclockwise, and the first roller 61R5 that grips the right edge of the first disk D1 rotates clockwise. Therefore, as the first rollers 61L5 and 61R5 contact and grip the first disk D1, as shown in FIG. 49, the first disk D1 moves in the direction of arrow A2, and the front arms 61L and 61R The link arms 62L and 62R to which the front arms 61L and 61R are connected are rotated so as to open in a fan shape while being synchronized with each other in a direction away from each other. At this time, the pressing portion 61R18 formed on the front arm 61R contacts and presses against the first switch 542, so that the first switch 542 is switched to the ON state as shown in FIG.

  When the first rollers 61L5 and 61R5 continue to rotate and the first disk D1 is further carried in the direction of arrow A2, as shown in FIG. The edge of one disk D1 comes into contact. The support arm 704 picks up the edge of the first disk D1 so that the edge of the first disk D1 does not hit the turntable 411 of the optical unit 4, so that the first disk D1, the optical unit 4, and the holder 52 are substantially parallel. The posture of the first disk D1 is maintained. The support arm 704 rotates around the hole 7043 of the support arm 704 as the first disk D1 is loaded in the direction of arrow A2. In this state, the pressing portion 61R18 of the front arm 61R presses the second switch 543, and the second switch 543 is switched to the on state as shown in FIG.

  When the first disk D1 is loaded in the direction of arrow A2 and the center of the first disk D1 passes through a straight line connecting the first rollers 61L5 and 61R5, the second rollers 61L6 and 61R6 are moved to the first as shown in FIG. The left and right edges of the disk D1 are abutted and gripped. At this time, the engagement between the first rollers 61L5 and 61R5 and the first disk D1 is released, and the second rollers 61L6 and 61R6 carry in the first disk D1. 50, when the first disk D1 moves from the position shown in FIG. 51 to the position shown in FIG. 51, the light receiving unit 541 is temporarily turned on in FIG. This is because the light emitted from the light emitting unit passes through the hole DC of the first disk D1 and is received by the light receiving unit 541.

  When the first disk D1 is further carried in the arrow A2 direction by the second rollers 61L6 and 61R6, as shown in FIG. 52, the cylindrical portion 7074 of the guide lock 707 constituting the upper unit 7 (see FIGS. 25 and 26). ) Abuts the edge of the first disk D1. Then, as the first disk D1 is carried in the arrow A2 direction, the guide lock 707 rotates counterclockwise in FIG. 52 about the hole 70713. By the rotation of the guide lock 707, the engagement between the guide lock 707 and the guide arm 706 is released, and the rotation of the guide arm 706 is allowed.

  After the guide lock 707 is rotated, when the first disk D1 is further carried in the direction of the arrow A2, as shown in FIG. 53, the piece member 7058 (see FIG. 21) of the detection arm 705 is loaded with the first disk D1. The edge abuts. When the first disk D1 is further carried in, the detection arm 705 rotates counterclockwise in FIG. 53 around the protrusion 70521 of the detection arm 705, and the restriction portion 70531 (see FIG. 22) is a side surface of the guide arm 706. It rotates until it abuts against the portion 70622. By this rotation of the detection arm 705, as shown in FIG. 54, the cylindrical portion 70561 (see FIGS. 21 and 22) of the detection arm 705 slides the slide cam 56L in the direction of the arrow A1.

  Then, by the movement of the slide cam 56L, as shown in FIG. 55, a rack portion 56L11 (see FIGS. 29 and 30) formed at the end of the slide cam 56L in the arrow A1 direction and a transmission mechanism 55 are configured. The second gear 553 is engaged, and the slide cam 56L further slides in the arrow A1 direction. As a result, as shown in FIG. 56, the link arm 561 (see FIG. 7) rotates, and the slide cam 56R slides in the direction of the arrow A2.

At this time, the protrusion 56L12 formed on the extension 61L18 of the front arm 61L is engaged with the groove 56L12 formed at the end of the slide cam 56L in the direction of the arrow A1, and the protrusion 56L14 is engaged with the protrusion 56L14. Part 61L181 engages.
Further, the cylindrical portions 70625 and 70626 formed on the guide arm 706 enter the grooves 56L1D and 56L1F (see FIG. 30) formed by the standing portions 56L16 and 56L17 of the slide cam 56L. Furthermore, a cylindrical portion 7073 (see FIGS. 25 and 26) formed in the guide lock 707 enters the groove portion 56L1B of the slide cam 56L.

  Further, in this state, as shown in FIG. 57, as the slide cam 56L moves in the direction of arrow A1, the swing arm 571 constituting the insertion preventing mechanism 57 rotates counterclockwise in FIG. Slides in the direction of the arrow C3, and the third gear 554 that is rotatably attached to the swing arm 571 moves away from the fourth gear 555. For this reason, the driving force of the motor 53 is not transmitted to the front arms 61L and 61R. However, in this state, as shown in FIGS. 56 and 57, the hole DC of the first disk D1 is formed in the optical unit 4 as shown in FIG. Therefore, the first disk D1 does not need to be carried in.

  In addition, although detailed illustration is omitted in FIGS. 56 and 57, a chuck arm 708 (see FIG. 17) in which the cylindrical portion 7084 engages with the groove portion 56R1D formed by the upright portion 56R14 of the slide cam 56R is the slide cam. The chuck arm 709 is rotated with the slide movement of 56R. As the chuck arms 708 and 709 rotate, the chuck arms 708 and 709 engage with the chuck arms 708 and 709, and the chuck pulley 710 floating from the opening 7011 of the top frame 701 is lowered.

  When the slide cam 56L further moves in the arrow A1 direction from the state of FIGS. 56 and 57 and the slide cam 56R moves in the arrow A2 direction, as shown in FIG. 58, the slide cam 56L is engaged with the grooves 56L12 and 56L14 of the slide cam 56L. The protrusions 61L182 and 61L181 of the front arm 61L move to the outside of the apparatus main body 2 along the grooves 56L12 and 56L14. As a result, the front arm 61L and the front arm 61R connected to the front arm 61L via the link arms 62L and 62R rotate in directions away from each other. The front arms 61L and 61R are locked by the grooves 56L12 and 56L14 in a state where the second rollers 61L6 and 61R6 provided on the front arms 61L and 61R are separated from the edge of the first disk D1.

Further, by the sliding movement of the slide cam 56R in the arrow A2 direction, the cylindrical portion 704B of the support arm 704 is fitted into the groove portion 56R1C formed by the upright portions 56L13 and 56R14 of the slide cam 56R. As a result, the support arm 704 abuts against the biasing force of a torsion spring (not shown) attached to the support arm 704 at a position spaced from the end edge of the first disk D1. 704 is locked.
Further, the slide movement of the slide cam 56R causes the chuck arms 708 and 709 to rotate, and the contact portions 7083 and 7092 of the chuck arms 708 and 709 are completely separated from the chuck pulley 710, respectively. For this reason, the chucking of the first disk D1 by the chuck pulley 710 and the turntable 411 becomes possible.

  In addition, when the slide cam 56L slides in the direction of the arrow A1, the cylindrical portion 70625 of the guide arm 706 and the cylindrical portion 7073 of the guide lock 707 are formed into the grooves 56L1D and 56L1B formed by the standing portion 56L16 of the slide cam 56L. Fits into each. Accordingly, the guide arm 706 and the guide to which the detection arm 705 is rotatably attached at a position where the piece member 7058 of the detection arm 705 and the cylindrical portion 7074 of the guide lock 707 are separated from the edge of the first disk D1. The locks 707 are locked against the urging force of torsion springs (not shown) attached thereto.

  Here, as the slide cams 56L and 56R slide in the directions of the arrows A1 and A2, respectively, the holder 52 on which the optical unit 4 is placed is perpendicular to the surface of the first disk D1 as described above. And the turntable 411 of the optical unit 4 is fitted into the hole DC of the first disk D1. At this time, the chuck pulley 710 and the turntable 411 chuck the first disk D1 by a magnet provided in the chuck pulley 710. When the chucking of the first disk D1 is completed, the contact state between the pressing portion 56R33 of the slide cam 56R and the third switch 544 is released, and the third switch 544 is turned off as shown in FIG. Switch.

Further, as shown in FIG. 59, by the sliding movement of the lock slider 572 in the direction of the arrow C3, the pressing portions 57275 and 57285 formed on the lever exposed portions 5727 and 5728 of the lock slider 572 become the lever exposed portions 5727, The abutment portion 5733 of the lock lever 573 provided at a position corresponding to the openings 57271 and 57281 of the 5728 is pressed to rotate the lock lever 573. 59, the lock lever 573 protrudes from the lock slider 572, and as shown in FIG. 58, the insertion restricting portion 5734 of the lock lever 573 is an opening 6345 formed in the bracket 63 of the transport unit 6. 6346 is prevented from being inserted through the opening 2A.
Then, the control unit 3 detects the switching of the third switch 544 to the off state, and stops the driving of the motor 53.
Thus, the transport of the first disk D1 into the apparatus main body 2 (loading in the direction of arrow A2) is completed.

On the other hand, unloading of the first disk D1 from the apparatus main body 2 (unloading in the direction of arrow A1) is performed through the reverse process of loading into the apparatus main body 2 described above. The shutter 702 is pushed up by the lever 58, and the optical unit 4 and the holder 52 are lowered by the lifting mechanism 56.
Note that the rotation of the front arms 61L and 61R when contacting the edge of the first disk D1 is performed by the biasing force 621 of a torsion spring that engages with the link arm 62R. Further, the support arm 704, the detection arm 705, the guide arm 706, and the guide lock 707 are rotated by a biasing force of a torsion spring (not shown) attached thereto. In addition, since the light from the light emitting part of the photosensor 703 (see FIGS. 15 and 17) is blocked by the first disk D1 when the first disk D1 starts to be carried out, the light receiving part 541 is shown in FIG. As shown in FIG.

  Specifically, the motor 53 slides in the direction of arrow A <b> 2 of the slide cam 56 </ b> L by rotating in the direction opposite to when the first disk D <b> 1 is carried into the apparatus main body 2. Along with this, the slide cam 56R slides in the direction of the arrow A1, whereby the third switch 544 of the control board 54 is pressed by the pressing portion 56R33 of the slide cam 56R, and the third switch 544 is shown in FIG. As shown in FIG. At this time, the bent portion 5851 of the shutter lever 58 contacts the tapered portion 56R211 formed on the slide cam 56R. When the bent portion 5851 moves along the tapered portion 56R211, the shutter lever 58 rotates, and the pressing portion 5861 of the shutter lever 58 protrudes from the opening 6335 of the bracket 63, so that the contact portion of the shutter 702 is contacted. 7024 is pushed up. As a result, the shutter 702 is pushed up, and the opening 2A is opened. Note that the shutter lever 58 is rotated in the reverse direction by being pressed by the protrusion 61R19 of the front arm 61R, and the contact state between the pressing portion 5861 and the contact portion 7024 of the shutter 702 is released.

  Further, as the slide cam 56L moves in the arrow A2 direction, the swing arm 571 rotates and the lock slider 572 slides in the arrow C4 direction. As a result, the stepped portions 57274 and 57284 of the lock slider 572 come into contact with the cutout portion 57321 of the lock lever 573, and the lock lever 573 is rotated in the direction opposite to the direction protruding from the lock slider 572. As a result, the lock lever 573 is housed in the lever exposed portions 5727 and 5728 of the lock slider 572, so that the unloading of the first disk D1 housed in the apparatus main body 2 in the arrow A1 direction is not hindered.

  Further, as described above, as the slide cams 56L and 56R slide, the holder 52 descends in a state of being inclined with respect to the surface of the first disk D1 and the descending direction of the holder 52. Therefore, in the optical unit 4, the slide cam 56L side descends first, and the slide cam 56R side descends later as the slide cams 56L and 56R slide. For this reason, the force at the time of the chucking cancellation | release of the 1st disk D1 of the turntable 411 of the optical unit 4 and the chuck pulley 710 can be reduced, and the cancellation | release of the said chucking can be performed easily.

  Further, when the front arms 61L and 61R are rotated in the direction approaching each other and the first disk D1 is carried out, the pressing portion 61R18 of the front arm 61R causes the second switch 543 and the second switch as shown in FIG. The 1 switch 542 is switched to the OFF state in this order. Then, when the second switch 543 is switched to the off state and an off signal indicating that the second switch 543 is in the off state is input to the control unit 3, the state determination unit 32 of the control unit 3 performs the drive control unit 33. Then, a motor drive stop signal is output to the control board 54. Accordingly, the first rollers 61L5 and 61R5 of the front arms 61L and 61R grip the edge of the first disk D1, and approximately 2/3 of the first disk D1 is exposed from the opening 2A (shown in FIG. 49). In this state, the driving of the motor 53 is stopped. For this reason, the first disk D1 is prevented from falling from the opening 2A.

(11-2) Transport of Second Disk D2 FIGS. 62 to 72 are diagrams showing a process of transporting the second disk D2 into the apparatus main body 2. FIG. 73 and 74 are transition diagrams showing the on / off states of the light receiving unit 541 and the switches 542 to 544 when the second disk D2 is loaded and unloaded. 62, 63, and 66 to 72 show a state in which the top frame 701 is removed from the apparatus main body 2, and the members 704 to 707 attached to the top frame 701 are shown by two-dot chain lines. It is shown in In each of these drawings, the optical unit 4 shows only the turntable 411 and omits other components. Further, FIG. 64 and FIG. 65 show the engaged state between the lock arm 61L7 and the groove 7016L.
The process of transporting the second disk D2 having a smaller diameter than the first disk D1 into the apparatus main body 2 is the same as that of the first disk D1, but the front arms 61L and 61R, the support arm 704, and the detection arm 705. The engaging positions of the guide arm 706 and the guide lock 707 are different.

  Specifically, when the second disk D2 is inserted from the disk housing opening 2A formed in the apparatus main body 2, as described above, from the photosensor 703 incident on the control board 54 provided in the base frame 51. (The position of the irradiation point P of the light is the same as in the case of the first disk D1, see FIGS. 62, 63 and 66 to 72) is blocked by the second disk D2, and is shown in FIG. Thus, when the light receiving unit 541 of the control board 54 is turned off, the insertion of the second disk D2 is detected, and the motor 53 is driven. When the second disk D2 is inserted in the approximate center of the opening 2A, as shown in FIG. 62, the second disk D2 is provided by the second rollers 61L6 and 61R6 provided on the front arms 61L and 61R. The edge of is gripped. In this state, as shown in FIG. 73, the first switch 542 and the second switch 543 of the control board 54 are in the off state, and the third switch 544 is in the on state.

  Here, as shown in FIGS. 63 and 64, when the second disk D2 is inserted at a position near the left end of the opening 2A, the edge of the second disk D2 is first a front edge. It is gripped by the first roller 61L5 of the arm 61L. When the insertion of the second disk D2 is detected by the control board 54, the first roller 61L5 rotates as the motor 53 is driven, and the second disk D2 is drawn into the apparatus main body 2. At this time, as shown in FIG. 64, the edge of the second disk D2 comes into contact with the contact portion 61L74 (see FIG. 11) of the lock arm 61L7 provided on the front arm 61L, and the lock arm 61L7 has a hole portion. It rotates around 61L711 in the direction away from the other front arm 61R (counterclockwise in FIG. 64).

When the user pushes in the second disk D2 further from this state, as shown in FIG. 65, together with the lock arm 61L7, the front arm 61L rotates in the direction away from the front arm 61R (counterclockwise in FIG. 65). To do. At this time, since the protrusion 61L72 of the lock arm 61L7 is fitted into the rotation restricting portion 7016L1 of the groove 7016L formed in the top frame 701, further rotation of the lock arm 61L7 is restricted.
Since the restricting portion 61L73 of the lock arm 61L7 abuts on the opposite side of the front roller 61L13 from the side facing the first roller 61L5 as the front arm 61L rotates, Further rotation of the front arm 61L is restricted. In this state, the distance between the second rollers 61L6 and 61R6 provided on the front arms 61L and 61R is smaller than the diameter of the second disk D2, and the distance between the second rollers 61L6 and 61R6 is Further, it is restricted that the second disk D2 extends beyond the diameter dimension.

  Thereafter, as the first roller 61L5 rotates, the second disk D2 is drawn into the apparatus body 2, and the edge of the second disk D2 is provided on the front arm 61L as shown in FIGS. It is delivered to and gripped by the second roller 61L6. As the second roller 61L6 rotates, the second disk D2 is further drawn into the apparatus main body 2. At this time, the distance between the second rollers 61L6 and 61R6 is smaller than the diameter dimension of the second disk D2, The second roller 61R6 provided on the arm 61R securely holds the edge of the second disk D2. As a result, the second disk D2 is positioned at the center of the opening 2A, and the edge of the second disk D2 is held by the second rollers 61L6 and 61R6 of the front arms 61L and 61R. It will be in the state shown in.

When the second disc D2 is inserted near the right end of the opening 2A, the first roller 61R5, the lock arm 61R7, and the second roller 61R6 provided on the front arm 61R are similarly 2 The disk D2 is positioned at the center of the opening 2A.
Therefore, even when the second disk D2 is inserted near the end of the opening 2A, the second disk D2 is held by the second rollers 61L6 and 61R6.

  Further, when the second disk D2 is gripped by the second rollers 61L6 and 61R6 in this way, the lock arm 61L7 (here, the lock arm 61L7 is in contact with the second disk D). ) Is rotated in the direction approaching the opening 2A by a biasing force of a torsion spring (not shown) engaged with the lock arm 61L7. Here, since the lock arm 61L7 is not in contact with the second disk D2, the protrusion 61L72 of the lock arm 61L7 slides in the groove 7016L when the front arm 61L rotates in a direction away from the front arm 61R. The position to do will shift.

  For this reason, even if the front arms 61L and 61R rotate in directions away from each other when the second disk D2 is carried in the direction of the arrow A2 by the rotation of the second rollers 61L6 and 61R6, the lock arms 61L7 and 61R7 The protrusions 61L72 and 61R72 are prevented from being fitted into the rotation restricting portions 7016L1 and 7016R1 of the grooves 7016L and 7016R, respectively. As a result, the front arms 61L and 61R are allowed to rotate in directions away from each other, and the second disk D2 is properly carried in without any delay.

  When the edge of the second disk D2 is gripped by the second rollers 61L6 and 61R6 of the front arms 61L and 61R, the second rollers 61L6 and 61R6 rotate in opposite directions as shown in FIG. (In FIG. 67, the second roller 61L6 rotates in the counterclockwise direction and the second roller 61R6 rotates in the counterclockwise direction). Then, the second disk D2 is carried in the direction of the arrow A2 toward the inside of the apparatus main body 2. In this state, the pressing portion 61R18 of the front arm 61R presses the first switch 542 of the control board 54, so that the first switch 542 is turned on as shown in FIG.

  Further, when the second disk D2 is carried in the direction of arrow A2, as shown in FIG. 68, the contact portion 704A of the support arm 704 contacts the edge of the second disk D2. Further, the support arm 704 resists the biasing force of the torsion spring (not shown) around the hole 7043 of the support arm 704 as the second disk D2 is carried in the direction of the arrow A2, as shown in FIG. In the clockwise direction. Such a support arm 704 can prevent the second disk D2 from hitting the turntable 411 of the optical unit 4. In this state, the pressing portion 61R18 of the front arm 61R presses the second switch 543, and the second switch 543 is turned on as shown in FIG.

  When the front arms 61L and 61R are further opened and the second disk D2 is further carried in the direction of the arrow A2, the second disk is placed on the piece member 7058 of the detection arm 705 attached to the guide arm 706 as shown in FIG. The edge of D2 contacts. When the detection arm 705 is pushed in by the second disk D2, as shown in FIG. 70, the restricting portion 70531 of the detection arm 705 is in contact with the side surface portion 70622 of the guide arm 706 with the projection 70521 as the center. 70, it rotates counterclockwise in FIG. 68. When the second disk D2 moves from the position shown in FIG. 68 to the position shown in FIG. 69, the light receiving unit 541 is temporarily turned on in FIG. This is because the light emitted from the light emitting unit passes through the hole DC of the second disk D2 and is received by the light receiving unit 541.

At this time, the cylindrical portion 70561 formed on the detection arm 705 and engaged with the groove portion 56L1A of the slide cam 56L pushes the rising portion 56L16 forming the groove portion 56L1A in the arrow A1 direction, so that the slide cam 56L is in the arrow A1 direction. Move to slide.
By the sliding movement of the slide cam 56L, the rack portion 56L11 formed at the end of the slide cam 56L on the arrow A1 side meshes with the second gear 553 constituting the transmission mechanism 55. The second gear 553 is rotated counterclockwise in FIG. 70 when the driving force of the motor 53 is transmitted, and the rotation of the second gear 553 causes the slide cam 56L to further move in the direction of the arrow A1. Along with this, the slide cam 56R slides in the arrow A2 direction via the link arm 561. In this state, the light emitted from the light emitting unit of the photosensor 703 is not blocked by the second disk D2, so that the light receiving unit 541 of the control board 54 receives the light as shown in FIG. Switch from off to on.

When the slide cam 56L is moved in the arrow A1 direction by the second gear 553, the upright portion 56L15 formed on the slide cam 56L pushes the cylindrical portion 7072 of the guide lock 707 as shown in FIG. The guide lock 707 rotates about the hole 70713 against the biasing force of the torsion spring. The rotation of the guide arm 706 is released by the rotation of the guide lock 707.
Further, the cylindrical portion 7049 formed on the support arm 704 contacts the upright portion 56R11 as the slide cam 56R moves. As the slide cam 56R moves in the arrow A1 direction, the cylindrical portion 7049 moves along the groove portion 56R1A formed by the standing portion 56R11, so that the support arm 704 is separated from the second disk D2.
Furthermore, the protrusion 61L181 formed on the extension 61L18 of the front arm 61L enters the groove 56L12 of the slide cam 56L.

Then, when the second disk D2 is further loaded in the direction of the arrow A2, and the position of the hole DC of the second disk D2 is arranged at a position corresponding to the turntable 411 of the optical unit 4, the slide cam 56L moves. Accordingly, as shown in FIG. 72, the front arm 61L having the protrusion 61L181 that has entered the groove 56L12 rotates to the outside of the second disk D2, and the front arm 61R also rotates to the outside of the second disk D2. To do. Therefore, the second rollers 61L6 and 61R6 provided on the front arms 61L and 61R are separated from the edge of the second disk D2 almost simultaneously.
As the second rollers 61L6 and 61R6 are separated from the second disk D2, the swing arm 571 engaged with the slide cam 56L is rotated, so that the third gear 554 that is rotatably attached to the swing arm 571 is rotated. , Away from the fourth gear 555. For this reason, the rotation of the second rollers 61L6 and 61R6 stops.

Further, at this time, the cylindrical portion 704B (see FIG. 16) of the support arm 704 is fitted into the groove portion 56R1B formed by the upright portions 56R12 and 56R13 of the slide cam 56R, so that the support arm 704 has the second disk. It is locked at a position away from D2.
Further, the chuck arm 708 (see FIG. 27) having a cylindrical portion 7084 that engages with the groove portion 56R1D formed by the rising portion 56R14 of the slide cam 56R is rotated by moving along the groove portion 56R1D of the cylindrical portion 7084. Then, the chuck arm 709 is rotated. Thereby, the engagement between the chuck arms 708 and 709 and the chuck pulley 710 is released, and the second disk D2 can be chucked by the turntable 411 of the optical unit 4 and the chuck pulley 710.

In synchronism with these, the cylindrical portion 70625 of the guide arm 706 and the cylindrical portion 7073 of the guide lock 707 are fitted into the groove portions 56L1C and 56L1E formed by the upright portions 56L16 of the slide cam 56L, respectively, thereby the guides. The arm 706 and the guide lock 707 are locked while being separated from the second disk D2.
Therefore, in this state, the second disk D2 is separated from the arms 61L, 61R, 704, 705, 706 and the guide lock 707.

  When the slide cam 56L further slides in the direction of the arrow A1, as described above, the holder 52 on which the optical unit 4 is placed rises perpendicularly to the surface of the second disk D2, and the optical unit 4 The turntable 411 is fitted into the hole DC of the second disk D2. At this time, the chuck pulley 710 released from the engagement with the chuck arms 708 and 709 and the turntable 411 sandwich the second disk D2, and the chucking of the second disk D2 is completed.

As the slide cam 56L slides, the swing arm 571 further rotates, causing the lock slider 572 to slide in the direction of the arrow C3. Accordingly, as described above, the lock slider 572 rotates the lock lever 573, and the insertion restriction portion 5734 of the lock lever 573 protrudes from the openings 6345 and 6346 of the bracket 63. Thereby, it is possible to prevent another disk D from being inserted.
Then, with the completion of the chucking of the second disk D2, the contact state between the pressing portion 56R33 of the slide cam 56R and the third switch 544 of the control board 54 is released, and the third switch 544 is As shown in FIG. 73, it switches to an OFF state. Accordingly, an off signal indicating that the third switch 544 is turned off is output from the control board 54 to the control unit 3, and the driving of the motor 53 is stopped by the control unit 3.
Thus, transport of the second disk D2 into the apparatus main body 2 (carrying in the direction of arrow A2) is completed.

  On the other hand, when the second disk D2 is carried out of the apparatus main body 2 (in the direction of arrow A1), the shutter 702 is pushed up by the shutter lever 58 and the lock slider 572 is moved in the same manner as when the first disk D1 is carried out. The lock lever 573 is sunk by sliding movement in the direction of the arrow C4, and the second disk D2 is lowered by tilting with respect to the surface of the second disk D2 and the lowering direction of the optical unit 4 by the lifting mechanism 56. The second disk D2 is unloaded through a process reverse to that performed when being loaded into the main body 2. When the second disk D2 is taken out from the opening 2A, the shutter 702 is lowered by the biasing force of the torsion spring, and the disk housing opening 2A is closed.

  That is, when the slide cam 56R slides in the direction of the arrow A1 by driving the motor 53 that rotates in the direction opposite to that when the second disk D2 is carried in, the pressing portion 56R33 of the slide cam 56R and the third switch of the control board 54 544 is brought into a contact state, and the third switch 544 is pressed by the pressing portion 56R33, and is switched on as shown in FIG. Then, as the slide cam 56L slides in the arrow A2 direction, the second disk is shown in the state shown in FIG. 72 by the support arm 704 and the detection arm 705 rotated by the biasing force of the torsion spring (not shown). After the state of 71 and FIG. 70, it is conveyed in the direction of arrow A1. When the slide cam 56L further slides in the direction of the arrow A2, as shown in FIG. 69, the front arms 61L and 61R are rotated in directions close to each other, and the second rollers 61L6 and 61R6 of the front arms 61L and 61R are rotated. Grips the edge of the second disk D2.

  Thereafter, as shown in FIG. 68, the second disk D2 is conveyed in the direction of the arrow A1 by the second rollers 61L6 and 61R6 of the front arms 61L and 61R. Then, as the second disk D2 is further transported in the direction of the arrow A1, the front arms 61L and 61R are rotated in a direction close to each other (the state shown in FIG. 67), and the front arm 61R The pressing portion 61R18 is separated from the second switch 543 and the first switch 542 in this order, and as shown in FIG. 74, first, the second switch 543 is switched to the off state, and then the first switch 542 is in the off state. Switch to The control unit 3 stops driving the motor 53 by switching the first switch 542 to the off state.

  In this state, as shown in FIG. 67, an area corresponding to approximately ¼ of the second disk D2 is exposed from the opening 2A, and the edge of the second disk D2 has front arms 61L and 61R. Are held by the second rollers 61L6 and 61R6. For this reason, the second disk D2 is prevented from falling from the opening 2A and can be taken out from the opening 2A. When the user takes out the second disk D2 from the opening 2A, the light receiving unit 541 of the control board 54 receives the light from the photosensor 703 and switches to the on state as shown in FIG. In this manner, the on / off state of the light receiving unit 541 and the switches 542 to 544 is switched with the carry-out of the second disk D2.

(12) Conveying Process by Control Unit 3 Next, a carrying-in process SA and a carrying-out process SB that are executed by the control unit 3 (see FIG. 47) and control the drive of the motor 53 during loading and unloading of the disk D. explain.

(12-1) Carrying-in process SA
FIG. 75 is a diagram showing a process flow of the carry-in process SA executed by the control unit 3.
In the carrying-in process SA, the light emitted from the light emitting unit of the photosensor 703 is blocked by the disk D inserted into the opening 2A, and the light receiving unit 541 of the control board 54 is turned off. An off signal indicating that the light receiving unit 541 is turned off is input to the control unit 3 and executed by the control unit 3.

Specifically, in the unloading process SA, when an off signal indicating that the light receiving unit 541 is turned off is input from the control board 54, the state determination unit 31 of the control unit 3 performs control as shown in FIG. It is determined whether or not a signal indicating the state of the first switch 542 is an OFF signal among various signals input from the substrate 54 (step SA01). That is, the state determination unit 32 determines whether or not the first switch 542 is off.
If it is determined that the first switch 542 is in the ON state, the state determination unit 32 determines that the disk D has already been inserted, and ends the carry-in processing SA.

On the other hand, when it is determined that the first switch 542 is in the off state, the state determination unit 32 determines that the second switch 543 is in the off state from a signal related to the state of the second switch 543 input from the control board 54. It is determined whether or not there is (step SA02). And when it determines with the 2nd switch 543 being an ON state, the state determination part 32 complete | finishes carrying-in process SA similarly.
Further, when it is determined that the second switch 543 is in the off state, the state determination unit 32 determines that the third switch 544 is in the on state from a signal related to the state of the third switch 544 input from the control board 54. It is determined whether or not there is (step SA03). And when it determines with the 3rd switch 544 being an OFF state, the state determination part 32 complete | finishes carrying-in process SA similarly.

  In the determinations at steps SA01 to SA03, when the light receiving unit 541 is turned off, the first switch 542 and the second switch 543 are turned on, and the third switch 543 is turned off. In some cases, this cannot occur when the disk D is already stored in the apparatus main body 2 and the above-described insertion preventing mechanism 57 is functioning. However, in order to prevent malfunction of the apparatus main body 2, steps SA01 to SA03 are incorporated in the carry-in processing SA. For this reason, these steps SA01 to SA03 may be omitted.

  On the other hand, if the state determination unit 32 determines in step SA03 that the third switch 544 is on, the drive control unit 33 causes the motor driver 545 of the control board 54 to rotate the motor 53 in the normal direction. Is output (step SA04). As a result, the motor driver 545 rotates the motor 53 in the forward direction, so that the loading of the disk D is started as shown in FIGS.

  After step SA04, the state determination unit 32 determines again whether or not the third switch 544 is in the OFF state from the signal relating to the state of the third switch 544 input from the control board 54 (step SA05). . Here, as described above, when the disk D is being loaded and the chucking of the disk D has not been completed, the third switch 544 is in an on state, and the state determination unit 32 performs the operation. When it is determined that the third switch 544 is in the on state, the state determination unit 32 waits until the third switch 544 is in the off state.

On the other hand, the chucking of the disk D is completed, and as shown in FIGS. 60 and 73, the third switch 544 is turned off, and the state determination unit 32 switches the third switch 544 to the off state. If detected, the drive control unit 33 outputs a motor stop signal for stopping the drive of the motor 53 to the motor driver 545 of the control board 54 (step SA06). Thereby, the drive of the motor 53 is stopped and the loading of the disk D is completed.
Thus, the carry-in process SA by the control unit 3 is completed.

(12-2) Unloading processing SA
FIG. 76 is a diagram showing a process flow of the unloading process SB executed by the control unit 3.
The unloading process SB is executed by the control unit 3 when a disk D unloading signal is input to the control unit 3 by an unillustrated eject switch or the like.
Specifically, in the unloading process SB, as shown in FIG. 76, the state determination unit 32 of the control unit 3 determines whether or not the third switch 544 input from the control board 54 is in an OFF state ( Step SB01). That is, in step SB01, the state determination unit 32 determines whether or not the disk D is chucked.
If the state determination unit 32 determines in step SB01 that the third switch 544 is in the ON state, the disk D is not chucked, that is, the disk D is stored in the apparatus main body 2. It judges that it is not, and complete | finishes carrying out process SB.

On the other hand, when the state determination unit 32 determines in step SB01 that the third switch 544 is in the OFF state, that is, when it is determined that the disk D is chucked, the state determination unit 32 In order to determine whether the disk D being chucked is the first disk D1 or the second disk D2, it is determined whether or not the light receiving unit 541 is in an off state (step SB02).
That is, when the first disk D1 having a large diameter is stored in the apparatus main body 2, light incident on the light receiving unit 541 is blocked by the first disk D1, as shown in FIG. The light receiving unit 541 is in an off state. Further, when the second disk D2 having a small diameter is stored, the light incident on the light receiving unit 541 is not blocked, so that the light receiving unit 541 is turned on as shown in FIG. Yes. Then, by determining the on / off state of the light receiving unit 541, it is possible to determine whether the disk D stored in the apparatus main body 2 is the first disk D1 or the second disk D2. .

  Here, when the state determination unit 32 determines that the light receiving unit 541 is in the off state, that is, when it is determined that the disk D stored in the apparatus main body 2 is the first disk D1, the drive control unit. 33 outputs to the motor driver 545 of the control board 54 a motor drive signal for rotating the motor 53 in the direction opposite to that when the disk D is loaded (step SB03). As a result, the motor 53 rotates in the reverse direction, and unloading of the first disk D1 stored in the apparatus main body 2 is started.

  After step SB03, the state determination unit 32 determines whether or not the second switch 543 is off based on the signal indicating the state of the second switch 543 input from the control board 54 (step SB04). ). If the state determination unit 32 determines that the second switch 543 is in the on state, the state determination unit 32 waits until the second switch 543 is in the off state, and determines that the second switch 543 is in the off state. In that case, the process proceeds to step SB07.

  On the other hand, in the determination at step SB02, when the state determination unit 32 determines that the light receiving unit 541 is in the on state, that is, it is determined that the disk D stored in the apparatus main body 2 is the second disk D2. In this case, similarly, the drive control unit 33 outputs a motor drive signal for rotating the motor 53 in the direction opposite to that when the disk D is loaded to the motor driver 545 of the control board 54 (step SB05). Thereby, unloading of the second disk D2 is started.

  After step SB05, the state determination unit 32 determines whether or not the first switch 542 is off based on a signal indicating the state of the first switch 542 input from the control board 54 (step SB06). ). If the state determination unit 32 determines that the first switch 542 is in the on state, the state determination unit 32 waits until the first switch 542 is in the off state, and determines that the first switch 542 is in the off state. In that case, the process proceeds to step SB07.

In step SB07, the drive control unit 33 outputs a motor stop signal for stopping the driving of the motor 53 to the motor driver 545 of the control board 54 (step SB07). Accordingly, as described above, the driving of the motor 53 is stopped in a state where the second rollers 61L6 and 61R6 of the front arms 61L and 61R grip the disk D, so that the disk D is prevented from falling from the opening 2A. Can be removed.
Thus, the unloading process SB by the control unit 3 is completed.

(13) Effects of the Embodiment According to the disk device 1 of the present embodiment as described above, the following effects can be obtained.
That is, the pair of front arms 61L and 61R that constitute the transport unit 6 and have the second rollers 61L6 and 61R6 that contact the edge of the disk D that is inserted into the opening 2A are the brackets 63 that are attached to the base frame 51. Arranged at the arm attachment portions 632 and 633. The front arms 61L and 61R are arranged so that the ends on the opening 2A side are separated from each other, and the ends on the opposite side to the ends on the opening 2A side are close to each other. Then, the front arms 61L and 61R are rotated in the direction of approaching and separating from each other by the link arms 62L and 62R in synchronization. The front arms 61L and 61R are biased by a torsion spring 621 in a direction approaching each other via the link arms 62L and 62R.

According to this, even when the second disk D2 having a smaller diameter than the first disk D1 is inserted at a position near the end of the opening 2A and one of the front arms 61L and 61R is expanded, the torsion spring 621 is provided. The front arms 61L and 61R are rotated in a direction close to each other by the urging force. Here, since the distance between the second rollers 61L6 and 61R6 in the state before the disk conveyance of the front arms 61L and 61R is smaller than the diameter dimension of the second disk D2, the second roller 61L6 is conveyed when the second disk D2 is conveyed. , 61R6, the edge of the second disk D2 is surely brought into contact. Then, the edge of the second disk D2 is gripped by each of the second rollers 61L6 and 61R6, and the second disk D2 is carried into the apparatus main body 2 while being centered in the center of the front arms 61L and 61R. Accordingly, the second disk D2 can be appropriately arranged at a chucking position by the turntable 411 and the chuck pulley 710.
Accordingly, not only when the first disk D1 having substantially the same dimensions as the opening 2A is inserted and when the second disk D2 is inserted substantially at the center of the opening 2A, the second disk D2 is opened. Even when it is inserted at a position near the end of the part 2A, the second disk D2 can be appropriately carried into the apparatus main body 2.

Further, lock arms 61L7 and 61R7 as lever members are rotatably provided on the front arms 61L and 61R. The lock arms 61L7 and 61R7 come into contact with the second disk D2 when the second disk D2 is inserted near the end of the opening 2A, and the second disk D2 is brought into contact with the other front arm. By pushing out to the side, the second disk D2 is centered at the approximate center of each front arm 61L, 61R.
According to this, when the second disk D2 is centered by the lock arms 61L7 and 61R7, each of the second rollers 61L6 and 61R6 provided on the front arms 61L and 61R further increases the edge of the second disk D2. It can be securely gripped. Therefore, even when the second disk D2 is inserted near the end of the opening 2A, the second disk D2 can be securely and appropriately held and carried by the second rollers 61L6 and 61R6.

  Further, the lock arms 61L7 and 61R7 are biased in a direction close to the opening 2A by a torsion spring (not shown), and the arm mounting portions 61L15 of the front arms 61L and 61R (the arm mounting portion of the front arm 61R is illustrated). (Omitted). Each of these arm attachment portions is formed at a position near the opening 2A in the front arms 61L and 61R. Then, the lock arms 61L7 and 61R7 are respectively inserted into the second disc D2 inserted at a position near the end of the opening 2A on the side where the front arms 61L and 61R to which the lock arms 61L7 and 61R7 are attached are arranged. The second disk D2 is brought into contact with the edge and moved to a position near the center of the opening 2A by the biasing force of the torsion spring (not shown).

  According to this, when the second disc D2 is inserted at a position near the end of the opening 2A, the abutment portion 61L74 (the lock arm 61R7 of the lock arms 61L7 and 61R7 is attached to the end edge of the second disc D2. The abutting portion of the can be reliably abutted). Therefore, the second disk D2 can be centered more reliably.

  Further, rotation restricting portions 7016L1 and 7016R1 are formed in grooves 7016L and 7016R which are formed on the top frame 701 and in which the protrusions 61L72 of the lock arms 61L7 and 61R7 (the protrusions of the lock arm 61R7 are not shown) slide. Has been. Among these, the rotation restricting portion 7016L1 is a lock arm that rotates in contact with the second disk D2 when the second disk D2 is inserted at a position near the end of the opening 2A on the front arm 61L side. The protrusion 61L72 of 61L7 is fitted, and thereby the rotation of the lock arm 61L7 in the direction away from the front arm 61R is restricted. For this reason, the restricting portion 71L73 of the lock arm 61L7 restricts the rotation of the front arm 61L in the direction away from the front arm 61R.

  On the other hand, when the first disk D1 or the second disk D2 is inserted in the approximate center of the opening 2A and the respective disks D1 and D2 are held by the second rollers 61L6 and 61R6, the protrusions of the lock arms 61L7 and 61R7. The portion 61L72 (the protrusion of the lock arm 61R7 is not shown) is not fitted into the rotation restricting portions 7016L1 and 7016R1, and the rotation of the lock arms 61L7 and 61R7 is not restricted. For this reason, the front arms 61L and 61R7 are allowed to rotate in directions away from each other.

  According to this, in a state in which the second disk D2 is inserted near the end of the opening 2A and the second disk D2 is not gripped by the second rollers 61L6 and 61R6, the second rollers 61L6 and 61R6. The distance between them can be reliably maintained smaller than the diameter dimension of the second disk D2, and the second disk D2 can be reliably held by the second rollers 61L6 and 61R6. Accordingly, each of the second rollers 61L6 and 61R6 can hold the second disk D2 and carry the second disk D2 in the centered state, so that it depends on the insertion position of the second disk D2 with respect to the opening 2A. The second disk D2 can be appropriately loaded without any trouble.

On the other hand, in a state where the disk D (the first disk D1 and the second disk D2) is gripped by the second rollers 61L6 and 61R6, the protrusions 61L72 of the lock arms 61L7 and 61R7 are fitted into the rotation restricting parts 7016L1 and 7016R1. Therefore, the front arms 61L and 61R can be turned. Therefore, depending on the type of the disk D, the insertion position into the opening 2A, and the engagement state between the disk D and the second rollers 61L6 and 61R6, the rotation restriction state of the front arms 61L and 61R, and the second The distance between the rollers 61L6 and 61R6 can be adjusted.
The same action and effect can be achieved by the protrusion of the lock arm 61R and the rotation restricting portion 7016R1.

The front arms 61L and 61R have not only the second rollers 61L6 and 61R6 provided at the end opposite to the end on the opening 2A side, but also the approximate center of the hypotenuse of the arm bodies 61L1 and 61R1. The first rollers 61L5 and 61R5 having the same configuration as the second rollers 61L6 and 61R6 are provided.
According to this, when the second disk D2 is inserted near the end of the opening 2A, the first rollers 61L5 and 61R5 grip the edge of the second disk D2. Then, as the first rollers 61L5 and 61R5 rotate, the second disk D2 is transferred to the second roller of the front arm having the first roller that holds the second disk D2. At this time, since the second disk D2 is centered by the lock arm provided on the front arm, each of the second rollers 61L6 and 61R6 can grip and convey the edge of the second disk D2. it can. Therefore, even when the second disk D2 is inserted at a position near one end of the opening 2A, the second disk D2 can be loaded more reliably and appropriately.

Further, the front arms 61L and 61R are in a state before the disk D is loaded, that is, in a state where the disk D is not inserted into the opening 2A and is not rotated, respectively, the first roller 61L5 and the second roller 61L6. And a straight line connecting the centers of the first roller 61R5 and the second roller 61R6 are inclined by approximately 45 ° with respect to the insertion direction of the disk D (in this embodiment, the same as the conveying direction of the disk D). The crossing angle of each straight line is approximately 90 °. According to this, the first rollers 61L5 and 61R5 are in the vicinity of the end in the direction orthogonal to the conveyance direction of the first disk D1, and the second rollers 61L6 and 61R6 are in the direction orthogonal to the conveyance direction of the second disk D2. Since each of the vicinity of the ends is held and carried in, the pulling force of the first disk D1 and the second disk D2 can be increased.
Further, the contact portion between the edge of the disk D and the second rollers 61L6 and 61R6 can be positioned on the inner side of the apparatus main body 2 from the opening 2A, and the amount of rotation of each of the front arms 61L and 61R is increased. Therefore, the amount of the disk D that can be pulled in can be increased, and the disk D can be reliably carried into the apparatus main body 2.

  In addition, the transport unit 6 includes link arms 62L and 62R that synchronize the rotation of the front arms 61L and 61R in the directions away from and close to each other, thereby transporting the disk D in a more reliably centered state. can do. Further, by providing such link arms 61L and 61R, it is not necessary to adjust the amount of rotation of each of the front arms 61L and 61R when the disk D is transported, so that the disk device 1 can have a simpler configuration. .

[2. Second Embodiment]
Next, a disk device 1A according to a second embodiment of the present invention will be described.
The disk device 1A according to the present embodiment has the same configuration as the disk device 1 described above. Here, in the disk device 1, when the second disk D2 is inserted near the end of the disk housing opening 2A, the lock arm provided on the front arm that comes into contact with the second disk D2 is used. The protrusion is configured to fit into the rotation restricting portion of the groove formed in the top frame 701 and restrict the rotation of the front arm. On the other hand, in the disc apparatus 1A of the present embodiment, the lock arm provided on the front arm on the side opposite to the front arm on the side where the second disc D2 is inserted is provided in the rotation restricting portion formed in the groove portion. This is a configuration in which the rotation of the front arm on the side where the second disk D2 is inserted is restricted by the fitting and the rotation of the front arm on the opposite side being restricted. The disk device 1A is different from the disk device 1 described above. In the following description, parts that are the same as or substantially the same as those already described are assigned the same reference numerals and description thereof is omitted.

The disk device 1A according to the present embodiment is configured as a slot-in type disk device, similar to the above-described disk device 1, and includes a device main body 21 and a cover member 9, although detailed illustration is omitted. The unit 3 includes an optical unit 4, a lower unit 5, a transport unit 6 </ b> A, and an upper unit 7.
Among these units, the transport unit 6A includes two front arms 61AL and 61AR, two link arms 62L and 62R, and a bracket 63 that supports them, and the front arms 61AL and 61AR include front arms 61L and 61R, respectively. It has the same configuration. Specifically, the front arm 61AL includes an arm main body 61L1, three gears 61L2 to 61L4, a first roller 61L5 and a second roller 61L6, and a lock arm 61L7. Similarly, the front arm 61AR includes an arm body 61R1, three gears 61R2 to 61R4, a first roller 61R5 and a second roller 61R6, and a lock arm 61R7.

Hereinafter, in the disk device 1A, a case where the second disk D2 is inserted at a position near the left end of the opening 2A will be described.
FIG. 77 is a schematic diagram showing a state in which the second disk D2 is inserted at a position near the left end of the disk housing opening 2A formed in the disk device 1A. FIG. 78 is a schematic diagram showing a state where the rotation of the front arms 61AL and 61AR is restricted.
When the second disk D2 is inserted near the left end of the opening 2A formed in the apparatus main body 21, as shown in FIG. 77, first, the second disk D2 is brought into contact with the lock arm 61L7. After contacting the portion 61L74 and turning the lock arm 61L7 away from the front arm 61AL around the arm mounting portion 61L15 (the direction of the arrow F1 that is counterclockwise in FIG. 77), It is held by one roller 61L5. When the second disk D2 blocks light from the photosensor 703 (not shown) and the control board 54 detects the insertion of the second disk D2, the motor 53 (not shown) is driven to drive the first roller. 61L5 rotates and the second disk D2 is drawn into the apparatus main body 21.

In this state, when the user further pushes in the second disk D2, as shown in FIG. 78, the lock arm 61L7 and the front arm 61AL are separated from the front arm 61AR (the counterclockwise arrow G1 in FIG. 78). Direction).
In this state, the lock arm 61L7 rotates in the direction of the arrow F1, and the position of the protrusion 61L72 of the lock arm 61L7 in the groove 7016L formed in the top frame 701 is from the position on the opening 2A side in the groove 7016L. It has moved to a position near the center. For this reason, even when the front arm 61AL rotates in the direction of the arrow G1, the protrusion 61L72 does not fit into the rotation restricting portion 7016L1 formed in the groove 7016L.

  On the other hand, the lock arm 61R7 provided on the front arm 61AR on the side opposite to the side on which the second disk D2 abuts does not abut on the second disk D2, and therefore the arm of the front arm 61AR to which the lock arm 61R7 is attached. The rotation about the attachment portion 61R15 is not performed, and the state is maintained in contact with the first roller support portion 61L13 (not shown) of the front arm 61AR. Therefore, the front arm 61AL rotates in the direction of the arrow G1, and the link arm 62R, 62L rotates the front arm 61AR away from the front arm 61AL (in the direction of the arrow G2 that is clockwise in FIG. 78). In this case, the protrusion 61R72 of the lock arm 61R7 formed at the same position as the protrusion 61L72 slides along the outer edge of the groove 7016R near the opening 2A.

Then, when the front arms 61AL and 61AR are rotated in the directions of the arrows G1 and G2 until the distance between the second rollers 61L6 and 61R6 is substantially the same as the diameter dimension of the second disk D2, the protrusion 61R72 is formed into the groove portion. It fits into a rotation restricting portion 7016R1 formed in 7016R. When the protrusion 61R72 is thus fitted into the rotation restricting portion 7016R1, further rotation of the front arm 61AR in the direction of arrow G2 is restricted, and accordingly, the front arm 61AL in the direction of arrow G1 is restricted. Further rotation is restricted.
Thereafter, the second disk D2 is transferred from the first roller 61L5 to the second roller 61L6, but the distance between the second rollers 61L6 and 61R6 is wider than the diameter dimension of the second disk D2 by the rotation restricting portion 7016R1. Therefore, the second disk D2 is gripped not only by the second roller 61L6 but also by the second roller 61R6 of the front arm 61AR.

FIG. 79 is a diagram showing a state in which the second disk D2 is held by the second rollers 61L6 and 61R6 of the front arms 61AL and 61AR.
In addition, when the pushing force of the second disk D2 by the user is weakened during the transfer from the first roller 61L5 to the second roller 61L6, the biasing force of the torsion spring 621 that engages the link arm 62R causes the front arm 61AL. , 61AR are rotated in directions close to the opening 2A (opposite directions of the arrows G1, G2), respectively, as shown in FIG. 79, and the second disk D2 is similarly moved to the front arms 61AL, 61AR. Are held by the second rollers 61L6 and 61R6.

  When gripping the second disk D2 by the second rollers 61L6 and 61R6, the second disk D2 is separated from the contact portion 61L74 of the lock arm 61L7 and contacts the contact portion 61L75 of the lock arm 61L7. In addition, it comes into contact with the contact portion 61R75 of the lock arm 61R7 formed at the same position as the contact portion 61L75. In this state, the protrusions 61L72 and 61R72 of the lock arms 61L7 and 61R7 are respectively opened in the openings 2A of the grooves 7016L and 7016R as the front arms 61AL and 61AR rotate in the direction opposite to the arrow G1 and G2 directions. The protrusions 61L72 and 61R72 and the rotation restricting portions 7016L1 and 7016R1 are disengaged.

FIG. 80 is a schematic diagram showing a state in which the second disk D2 is being conveyed by the second rollers 61L6 and 61R6.
Thus, when the second disk D2 is gripped by the second rollers 61L6 and 61R6, the second disk D2 is carried in the direction of the arrow A2 by the rotation of the second rollers 61L6 and 61R6. When the second disk D2 is carried in, the front arms 61AL and 61AR rotate in the directions of arrows G1 and G2 as shown in FIG. 80, so that the contact portions 61L75 and 61R75 are engaged with the second disk D2. The protrusions 61L72 and 61R72 are released and positioned in the vicinity of the rotation restricting portions 7016L1 and 7016R1.

However, when the front arms 61AL and 61AR are rotated so that the distance between the second rollers 61L6 and 61R6 is substantially the same as the diameter of the second disk D2, the protrusions 61L72 and 61R72 are rotated and restricted by the rotation restricting portion 7016L1. , 7016R1 so that the positions and shapes of the lock arms 61L7, 61R7 and the positions of the rotation restricting portions 7016L1, 7016R1 are set, so that the loading of the second disk D2 is not hindered.
With such a configuration, even when the second disk D2 is inserted near the left end of the opening 2A, the second disk D2 can be transported into the apparatus main body 21 while being centered. . Since the subsequent loading of the second disk D2 in the disk device 1A is the same as that of the disk device 1 described above, the description thereof is omitted.

On the other hand, when the second disk D2 is inserted near the right end of the opening 2A and the second disk D2 is pushed in a state where it is in contact with the first roller 61R5 and the lock arm 61R7 of the front arm 61AR. The operation is the reverse of that described above.
That is, the protrusion 61L72 of the lock arm 61L7 provided on the front arm 61AL is fitted into the rotation restricting portion 7016L1 of the groove 7016L, and the distance between the second rollers 61L6 and 61R6 is larger than the diameter dimension of the second disk D2. The rotation of the front arms 61AR and 61AL in the directions of arrows G2 and G1 is restricted so as not to spread. Then, the second disk D2 is gripped by the second rollers 61L6 and 61R6, and the second rollers 61L6 and 61R6 rotate, whereby the second disk D2 is carried into the apparatus main body 21 while being centered.

  Further, when the second disk D2 is inserted in the approximate center of the opening 2A, the second disk D2 is inserted into the second rollers 61L6 and 61R6 of the front arms 61AL and 61AR, as in the state shown in FIG. Is gripped by. Thus, the second disk D2 is stored in the apparatus main body 21 while being centered by the front arms 61AL and 61AR.

  Further, when the first disk D1 is inserted into the opening 2A, the contact portions 61L74 and 61R74 of the lock arms 61L7 and 61R7 are in contact with the edge of the first disk D1, and the first disk by the user. Due to the pushing force of D1, the lock arms 61L7 and 61R7 rotate in the directions of arrows F1 and F2. At this time, the positions of the protrusions 61L72 and 61R72 of the lock arms 61L7 and 61R7 in the grooves 7016L and 7016R move from the position closer to the opening 2A to the position closer to the center. For this reason, even when the front arms 61AL and 61AR are rotated in the directions of the arrows G1 and G2 when the second rollers 61L6 and 61R6 carry the first disk D1 in the direction of the arrow A2, the protrusions 61L72 and 61R72 are Without sliding into the rotation restricting portions 7016L1 and 7016R1 formed in the groove portions 7016L and 7016R, they slide at positions near the center of the groove portions 7016L and 7016R. Accordingly, the first disk D1 can be carried into the apparatus main body 21 without being obstructed by the rotation restricting portions 7016L1 and 7016R1.

Since the operation when the first disk D1 and the second disk D2 are ejected from the apparatus main body 21 to the outside of the opening 2A is the same as that of the disk apparatus 1 described above, the description thereof is omitted.
According to the disk device 1A of the present embodiment described above, the same effects as those of the disk device 1 described above can be obtained.

[3. Modification of Embodiment]
The best configuration for implementing the present invention has been disclosed in the above description, but the present invention is not limited to this. That is, the description limited to the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

  In each of the above embodiments, the lock arms 61L7 and 61R7 are provided as the lever members on the front arms 61L and 61R and the front arms 61AL and 61AR, respectively, but the present invention is not limited to this, and the front arms 61L, 61R, 61AL, It is good also as a structure provided in at least one among 61AR. Further, the lock arms 61L7 and 61R7 may be rotatably attached to any one of the bracket 63, the base frame 51, and the top frame 701 instead of the front arms 61L, 61R, 61AL, and 61AR. That is, the second disk D2 is brought into contact with the second disk D2 inserted near the end of the opening 2A, and the second disk D2 is moved to the approximate center between the front arms 61L and 61R and the front arms 61AL and 61AR. What is necessary is just to be provided in the possible position.

  In each of the embodiments described above, the first rollers 61L5 and 61R5 are provided at substantially the center of the oblique sides of the arm bodies 61L1 and 61R1 of the front arms 61L, 61R, 61AL, and 61AR, and the second rollers 61L6 and 61R6 are opened at the oblique sides. Although it provided in the edge part on the opposite side to the part 2A side, this invention is not limited to this. For example, the first rollers 61L5 and 61R5 may be disposed in the vicinity of the end portion on the opening 2A side in the oblique sides of the arm main bodies 61L1 and 61R1. That is, the arrangement positions of the first rollers 61L5 and 61R5 and the second rollers 61L6 and 61R6, and the number of these rollers are the dimensions of the front arms 61L, 61R, 61AL, and 61AR, the retracted amount and the extruded amount of the disk D, etc. May be set as appropriate.

  In each of the above embodiments, the front arms 61L, 61R, 61AL, 61AR and the front arms 61AL, 61AR are respectively straight lines connecting the centers of the first roller 61L5 and the second roller 61L6, and the first roller 61R5 and the second roller 61L6. The straight lines connecting the respective centers of the rollers 61R6 are arranged to be inclined by approximately 45 ° with respect to the direction in which the disk D is inserted into the opening 2A, and the intersection angle of the respective straight lines is approximately 90 °. The present invention is not limited to this. That is, the arrangement positions of the first rollers 61L5, 61R5 and the second rollers 61L6, 61R6 on the front arms 61L, 61R and the front arms 61AL, 61AR are the dimensions of the front arms 61L, 61R, 61AL, 61AR, and the disk D is retracted. You may set suitably by quantity, extrusion amount, etc.

  In each of the embodiments described above, the first disk D1 exemplified by a disk having a diameter dimension of 12 cm and the second disk D2 exemplified by a disk having a diameter dimension of 8 cm are given as the disks having different diameter dimensions. The present invention is not limited to this. That is, the present invention can be applied to any disk device that has an opening into which a disk with a different diameter can be inserted, and that transports the disk inserted into the opening into the disk device. The diameter of the disk to be used may be set as appropriate.

  The present invention can be suitably used for a slot-in type disk device configured to be able to insert a plurality of types of disks having different diameters.

1 is a perspective view showing an external appearance of a disk device according to an embodiment of the present invention. The disassembled perspective view which shows the disc apparatus in the said embodiment. The perspective view which shows the optical unit in the said embodiment. The perspective view which shows the lower unit in the said embodiment. The disassembled perspective view which shows the lower unit in the said embodiment. The top view which expands and shows a part of lower part unit in the said embodiment. The figure which shows the bottom face of the base frame in the said embodiment. The perspective view which shows the transmission mechanism in the said embodiment. The figure which looked at the conveyance unit in the said embodiment from upper direction. The figure which looked at the conveyance unit in the said embodiment from the downward direction. The disassembled perspective view which shows the conveyance unit in the said embodiment. The perspective view which shows the front arm in the said embodiment. The figure which shows the cross section of the rubber roller in the said embodiment. The top view which shows the link arm in the said embodiment. The figure which looked at the upper unit in the said embodiment from upper direction. The perspective view which looked at the upper unit in the embodiment from the lower part. The disassembled perspective view which shows the upper unit in the said embodiment. The figure which looked at the top frame in the above-mentioned embodiment from the upper part. The figure which looked at the top frame in the embodiment from the lower part. The perspective view which shows the support arm in the said embodiment. The perspective view which shows the detection arm in the said embodiment. The figure which looked at the detection arm in the embodiment from the lower part. The perspective view which shows the guide arm in the said embodiment. The figure which looked at the guide arm in the said embodiment from the downward direction. The perspective view which shows the guide lock in the said embodiment. The figure which looked at the guide lock in the said embodiment from the downward direction. The figure which looked at the chuck arm in the above-mentioned embodiment from the lower part. The figure which looked at the chuck arm in the above-mentioned embodiment from the lower part. The perspective view which shows the slide cam in the said embodiment. The figure which looked at the slide cam in the said embodiment from upper direction. The figure which looked at the slide cam in the said embodiment from the downward direction. The figure which looked at the slide cam in the said embodiment from the side. The perspective view which shows the slide cam in the said embodiment. The figure which looked at the slide cam in the said embodiment from upper direction. The figure which looked at the slide cam in the said embodiment from the downward direction. The figure which looked at the slide cam in the said embodiment from the side. The figure explaining raising / lowering of the holder and optical unit by the raising / lowering mechanism in the said embodiment. The figure explaining raising / lowering of the holder and optical unit by the raising / lowering mechanism in the said embodiment. The figure explaining raising / lowering of the holder and optical unit by the raising / lowering mechanism in the said embodiment. The figure which looked at the swing arm in the said embodiment from upper direction. The perspective view which shows the lock slider in the said embodiment. The figure which looked at the lock slider in the above-mentioned embodiment from the upper part. The figure which shows the lock lever in the said embodiment. The perspective view which shows the shutter lever in the said embodiment. The figure which looked at the shutter lever in the said embodiment from the side. The figure which looked at the shutter lever in the said embodiment from the downward direction. The block diagram which shows the structure of the control unit in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. The figure which shows the conveyance process of the 1st disk in the said embodiment. FIG. 6 is a transition diagram showing on / off states of the light receiving unit, the first switch, the second switch, and the third switch when the first disk is carried in the embodiment. FIG. 6 is a transition diagram showing on / off states of the light receiving unit, the first switch, the second switch, and the third switch when the first disk is unloaded in the embodiment. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The figure which shows the engagement state of the lock arm at the time of carrying in of the 2nd disk in the said embodiment, and a groove part. The figure which shows the engagement state of the lock arm at the time of carrying in of the 2nd disk in the said embodiment, and a groove part. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The figure which shows the conveyance process of the 2nd disk in the said embodiment. The transition diagram which shows the on / off state of the light-receiving part at the time of the 2nd disc carrying-in in the said embodiment, a 1st switch, a 2nd switch, and a 3rd switch. The transition diagram which shows the on / off state of the light-receiving part at the time of the 2nd disc carrying-out in the said embodiment, a 1st switch, a 2nd switch, and a 3rd switch. The figure which shows the processing flow of the process at the time of carrying in in the said embodiment. The figure which shows the processing flow of the process at the time of carrying out in the said embodiment. The schematic diagram which shows the state by which the 2nd disc was inserted in the position near the left end part of the opening part in the disc apparatus concerning 2nd Embodiment of this invention. The schematic diagram which shows the state in which rotation of the front arm in the said embodiment was controlled. The schematic diagram which shows the state which each 1st roller of the front arm in the said embodiment hold | gripped the 2nd disk. The schematic diagram which shows the state which the 2nd rollers 61L6 and 61R6 in the said embodiment are conveying the 2nd disk D2.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,1A ... Disk apparatus, 6, 6A ... Conveyance unit (conveyance means), 41 ... Motor (drive means), 42 ... Pickup (information reading / recording means), 51 ... Base frame (casing), 61L, 61R, 61AL, 61AR ... Front arm (arm), 62L, 62R ... Link arm (link), 621 ... Torsion spring (biasing means), 701 ... Top frame (housing), 61L5, 61R5 ... First roller (other rollers) ), 61L6, 61R6, second roller (roller), 61L7, 61R7, lock arm (lever member), 61L73, restricting portion, 7016L1, 7016R1, rotation restricting portion, D, disc, D1, first disc, D2. Second disc.

Claims (8)

A housing having an opening through which the first disk and a second disk having a smaller diameter than the first disk are inserted and removed; and a conveying means for carrying the disk inserted into the opening into the housing; A disk device comprising: a driving unit that rotates the disk; and an information reading / recording unit that performs at least one of reading of information recorded on the rotating disk and recording of information on the disk,
The opening is formed to have a size corresponding to the first disk;
The conveying means is
A first direction and a distance from each other in a first direction close to each other in synchronism with each other around the end on the opening side are arranged symmetrically around the opening in the vicinity of both ends of the opening. A pair of arms that rotate in two directions;
Urging means for urging the pair of arms in a direction approaching the opening,
The end of each arm on the opening side is disposed in the vicinity of the opening,
Each arm has
A roller for conveying the disk is provided;
The distance between the rollers is smaller than the diameter of the second disk until the second disk comes into contact with the rollers. The disk device according to claim 1,
At least one of the pair of arms is rotatably provided with a lever member that abuts on the disk inserted into the opening and biases the disk toward the other arm. A disk device characterized. The disk device according to claim 2,
The disk device according to claim 1, wherein the lever member is provided at a position near an end portion on the opening side of the arm provided with the lever member. The disk device according to claim 2 or 3,
The housing is
Rotation restriction that restricts the rotation of the arm in the second direction on the side opposite to the side where the second disk is inserted when the second disk is inserted in the vicinity of the end of the opening. A disk device comprising a section. The disk device according to claim 4, wherein
The lever member is
A regulation part that abuts on the arm and regulates the rotation of the arm,
The rotation restricting portion is
A disk device characterized in that the rotation of the pair of arms is restricted by restricting the rotation of the lever member provided on the arm on the opposite side. 6. The disk device according to claim 1, wherein:
The roller is provided at an end of each arm opposite to the opening side,
Each arm has
2. A disk device according to claim 1, wherein another roller having substantially the same configuration as the roller is rotatably provided at a predetermined interval with respect to the roller. The disk device according to claim 6, wherein
The pair of arms
Of the pair of arms, a straight line connecting the roller and the other roller provided on one arm and a straight line connecting the roller and the other roller provided on the other arm are substantially orthogonal to each other. A disk device that is arranged to The disk device according to any one of claims 1 to 7,
The conveying means is
A disk comprising a link for rotating the other arm in a direction opposite to the rotation direction of the one arm in accordance with the rotation operation of one arm of the pair of arms. apparatus.

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