JP2007220158A - Disk drive device and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk drive device capable of guiding a disk to a centering position, while highly stably performing support with rollers, and preventing upsizing, while reliably preventing interference with an optical pickup, and to provide an electronic apparatus thereof. <P>SOLUTION: The disk drive device 100 includes a rear guide 23, which guides the optical disk 10 to the centering position while supporting the disk carried by a roller block 11, in the rear part of the roller blocks 11, 16 and also in the upper part of a pickup unit 40. The rear guide 23 includes respective hourglass shaped disk support parts 27a, 27b, so as to be disposed over the pickup base 43 of the pickup unit 40, is energized by a coil spring 29c so as to be energized in an optical disk 10 discharge direction (to the sides of the respective roller blocks), waits the optical disk 10, and then, guides the optical disk 10 by sliding in an insertion direction against the energizing force. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk drive device capable of recording and reproducing signals to and from a disk-shaped recording medium such as an optical disk, and an electronic apparatus equipped with the disk drive device, and more particularly to a disk-shaped recording medium via a slot. The present invention relates to a so-called slot-in type disk drive device and electronic equipment that can be directly inserted and ejected.

  Conventionally, optical discs such as CDs (Compact Disks), DVDs (Digital Versatile Disks), and Blu-ray discs are known as disc-shaped recording media, and various types of disc drive devices corresponding to these discs are provided. ing.

  The disk drive unit is a type in which the lid or door provided on the housing is opened and the disk is directly mounted on the turntable facing from the disk drive, and the disk is loaded on the disk tray that is transported in the horizontal direction across the inside and outside of the main unit. When the disc tray is pulled into the device main body, the disc is automatically mounted on a turntable provided in the device main body (so-called clamshell type), or the disc tray is turned on. There is a type (so-called tray type) in which a table is integrally provided, and the disc is directly mounted on the turntable when the disc tray is conveyed outside the apparatus main body. However, both types require operations such as opening / closing the lid and door, inserting / removing the disc tray, and mounting the disc on the turntable.

On the other hand, there is a so-called slot-in type disk drive device in which a disk is automatically drawn into the apparatus main body simply by inserting the disk from a slot provided on the front surface of the housing and mounted on the turntable. . In this disk drive device, when a disk is inserted from the slot, the pair of guide rollers are inserted into the slot by rotating the pair of guide rollers in opposite directions while sandwiching the disk between the pair of guide rollers facing each other. A loading operation for drawing the disk into the housing and an ejecting operation for ejecting the disk from the slot to the outside of the housing are performed. As such a slot-in type disk drive device, there is one described in Patent Document 1 below.
JP 2001-56994 A (FIG. 1 etc.)

  By the way, in the disk drive device having a roller as described in Patent Document 1, a guide member other than the roller is used to position the conveyed disk at a predetermined position (hereinafter referred to as a centering position) where the disk can be mounted on the mounting portion. It is necessary to regulate the movement of the disk. As such a guide member, for example, a rotating arm-shaped guide that can rotate in parallel with the main surface of the disk has been used.

  However, the rotating arm-shaped guide member overlaps with the optical pickup unit including the mounting portion provided therebelow, and thus the guide member and the optical pickup unit may interfere with each other. In order to prevent the interference, there is a method in which the thread feeding direction of the optical pickup is tilted by, for example, about 45 degrees with respect to the insertion direction within a plane substantially parallel to the main surface of the disc. The size in the width direction increases, and it becomes impossible to fit in the half height size, which is a general size standard for computer peripheral devices. In particular, in an optical disk drive device capable of high-density recording such as a Blu-ray disk, the number of wavelengths handled increases, so the optical pickup itself tends to increase in size, and the half-height size can be realized more spatially. It becomes difficult.

  In addition, in the rotating arm-shaped guide member, since the point supporting the disk moves in an arc shape, the disk may not be supported in a balanced manner at an appropriate position, or the rotation stroke may be insufficient. Therefore, it is necessary to further provide auxiliary members such as an auxiliary guide and a relay guide.

  In view of the circumstances as described above, the object of the present invention is to guide the disc to the centering position while supporting the disc with the roller with high stability and to prevent the interference with the optical pickup while ensuring a large size. It is an object of the present invention to provide a disk drive device and an electronic apparatus that can prevent the above-described problem.

  In order to solve the above-described problem, a disk drive device according to a main aspect of the present invention includes a housing having a slot on the front surface into which a disk-shaped recording medium is inserted and ejected, and a housing provided in the housing. A mounting unit for mounting the recording medium, a rotation driving mechanism for driving the recording medium mounted on the mounting unit to rotate about an axis in a substantially vertical direction of the main surface of the recording medium, and the rotation driving mechanism. A pickup unit having a pickup mechanism capable of reproducing a signal recorded on the driven recording medium, a pickup moving mechanism for moving the pickup mechanism in a radial direction of the recording medium, and a portion near the slot in the housing. The recording medium is rotated by an axis substantially parallel to the axis while supporting a peripheral edge of the recording medium to be inserted and ejected. A roller mechanism having a roller that can be transported between a lot and the mounting portion; and the recording that is provided in the insertion direction of the roller mechanism and in the substantially vertical direction of the pickup unit and is transported by the roller mechanism And a guide mechanism capable of guiding the recording medium to a centering position where the recording medium can be mounted on the mounting portion by moving in the insertion direction while supporting the peripheral edge of the medium.

  Accordingly, the guide mechanism moves linearly in the insertion direction while supporting the recording medium together with the roller mechanism, so that the recording medium can be guided to the centering position with high stability.

  Here, the disk-shaped recording medium is, for example, an optical disk such as a CD, a DVD, or a Blu-ray disk, or a magneto-optical disk such as an MD.

  In the disk drive device, the guide mechanism is provided in the vicinity of the roller mechanism, and a first support portion that can support a peripheral edge portion of the recording medium, and the insertion direction and the diameter direction of the recording medium. And a second support portion which is provided substantially symmetrically with the one support portion and can support the peripheral portion of the recording medium.

  Thus, since each support portion is provided so as to straddle the pickup mechanism to ensure a clearance with the pickup mechanism, the recording medium being conveyed can be always supported at the same two points. The recording medium can be guided to the centering position with higher stability in cooperation with the roller mechanism while preventing the interference. This also eliminates the need for providing another guide member or the like to assist the guide mechanism.

  In the disk drive device, each of the first and second support portions may have a constricted portion that restricts the peripheral edge portion in the vertical direction.

  As a result, the first and second support portions support the peripheral portion of the recording medium so as to be sandwiched between the constricted portions, thereby restricting the movement of the recording medium in the vertical direction and more reliably reaching the centering position. Can guide.

  The disk drive device further includes a frame that is provided in the housing, holds the roller mechanism and the guide mechanism, and has a guide groove formed in the insertion direction. A projecting portion provided so as to project in the direction and slidably engaged with the guide groove, and a biasing member connected to the frame and biasing the guide mechanism in the discharge direction. Also good.

  As a result, the guide mechanism waits for the conveyed recording medium near the roller mechanism by the urging force of the urging member. After the recording medium comes into contact, the guide mechanism resists the urging force while supporting the recording medium by the urging force. Then, it slides in the insertion direction with a large stroke along the guide groove. Therefore, the recording medium can be guided more stably, and there is no need to provide another guide member or the like to relay the recording medium between the roller mechanism and the guide mechanism. In addition, since the guide mechanism is slidably provided on the frame, interference with the pickup mechanism can be reliably prevented. Here, the biasing member is formed of an elastic member such as a coil spring or rubber.

  In the disk drive device, the pickup unit may be provided such that the pickup moving mechanism moves the pickup mechanism in the insertion direction.

  Thereby, the pickup unit is provided in such a direction that the pickup moving mechanism moves the pickup mechanism in parallel with the guide mechanism. Therefore, while preventing interference between the guide mechanism and the pickup mechanism, the disk drive device is prevented from becoming larger in the width direction than in the case where the respective moving directions are made non-parallel, and the disk drive device is reduced to a half height size. Can fit.

  In the disk drive device, the recording medium may be a first recording medium having a first diameter or a second recording medium having a second diameter smaller than the first diameter.

  Accordingly, each recording medium can be guided to the centering position with high stability in correspondence with two recording media having different diameters. In this case, the roller mechanism may have a roller for transporting the first recording medium and a roller for transporting the second recording medium.

  An electronic apparatus according to another aspect of the present invention includes a first housing having a slot on the front surface into which a disk-shaped recording medium is inserted and ejected, and the inserted recording medium mounted in the housing. A mounting unit that rotates the recording medium mounted on the mounting unit around a substantially vertical axis of the main surface of the recording medium, and the recording that is rotationally driven by the rotational driving mechanism. A pickup unit having a pickup mechanism capable of reproducing a signal recorded on a medium; a pickup moving mechanism for moving the pickup mechanism in a radial direction of the recording medium; and the insertion unit provided in the vicinity of the slot in the housing. The recording medium is transported between the slot and the mounting portion by rotating around an axis substantially parallel to the axis while supporting the peripheral edge of the recording medium to be ejected. A roller mechanism having possible rollers; and the insertion while supporting a peripheral portion of the recording medium which is provided in the insertion direction of the roller mechanism and in the substantially vertical direction of the pickup unit and is conveyed by the roller mechanism A disc drive device having a guide mechanism capable of guiding the recording medium to a centering position where the recording medium can be attached to the attachment portion by moving in the direction, and a second housing capable of holding the disc drive device It comprises.

  Here, examples of the electronic device include a computer (in the case of a personal computer, a laptop computer or a desktop computer), an audio / visual device, a game device, a car navigation device, a robot device, and other electric appliances. Products and the like.

  As described above, according to the present invention, it is possible to guide the disc to the centering position while supporting the disc with the roller with high stability, and to prevent the enlargement while reliably preventing the interference with the optical pickup. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an external appearance of a disk drive device 100 according to the present embodiment. FIG. 2 is a perspective view of the disk drive device 100 shown in FIG. 1 with a housing 1 (excluding the front panel 1a) removed. 4 is a perspective view with the upper frame 4 of FIGS. 2 and 3 removed, and FIG. 5 is the main frame 7, the arm 5 and the arm 6, the roller block 11 and the roller block 16, the loading motor 22 and the like of FIG. It is a perspective view of the state which removed.

  As shown in these drawings, the disk drive device 100 has a housing 1 made of, for example, a sheet metal. The casing 1 has a half height size, which is a standard size for incorporating a disk drive device in a desktop PC, for example, in the thickness direction. The disk drive device 100 inserts and ejects two optical disks 10 having different diameters, a large-diameter optical disk 10A having a diameter of 12 cm as shown in FIG. 2 and a small-diameter optical disk 10B having a diameter of 8 cm (not shown), and recording on each disk. Playback can be performed. The front panel 1a of the housing 1 is provided with a slot 2 for inserting and ejecting a large-diameter optical disk 10A and a small-diameter optical disk 10B. Examples of the optical disk 10 include a CD, a DVD, and a Blu-ray disk. The front panel 1a is provided with an eject button 3 for ejecting the optical disks 10A and 10B inserted from the slot 2. In the following description, when it is not necessary to distinguish the large-diameter optical disk 10A and the small-diameter optical disk 10B, they are simply referred to as the optical disk 10.

  As shown in FIGS. 2 and 4, for example, a resin main frame 7 is provided in the housing 1 of the disk drive device 100, and an optical disk 10 inserted from the slot 2 is loaded into the main frame 7. A loading unit 20 is provided. FIG. 3 is a plan view of the loading unit 20.

  The loading unit 20 has an upper frame 4 and a lower frame 8 made of, for example, a thin sheet metal. The upper frame 4 of the loading unit 20 is provided with a roller block 11 and a roller block 16 for loading the optical disk 10 inserted from the slot 2, and an arm 5 and an arm 6 so as to oppose left and right, respectively. .

  The arm 5 and the arm 6 are rotatably supported so as to slide on the upper frame 4 in the horizontal direction (directions of arrows A and B in both figures), respectively, around the rotation shaft 5a and the rotation shaft 6a. I keep it. Both arms are connected at the rear by engaging a connecting shaft 5b provided on the arm 5 and a connecting groove 6b provided on the arm 6, and the connecting shaft 5b is guided to the connecting groove 6b. Thus, both arms can be rotated in conjunction with each other. As shown in FIGS. 3 and 4, the arm 6 has a coil spring 28, one end of the coil spring 28 is supported by the upper frame 4, and the other end is connected to the arm 6. The coil spring 28 urges the arm 6 and the arm 5 connected to the arm 6 in a direction (indicated by arrows A2 and B2 in FIG. 3) to rotate inward of the disk drive device 100.

  As shown in FIG. 4, the tips of the arm 5 and the arm 6 are connected to the roller block 11 and the roller block 16 via a joint shaft 14a and a joint shaft 19a, respectively. Thereby, the roller block 11 and the roller block 16 can be driven in conjunction with the arm 5 and the arm 6. As shown in FIGS. 2 to 4, a loading motor 22 for driving the roller block 11 is provided behind the upper frame 4 of the loading unit 20.

  FIG. 7 is a diagram showing details of the arm 5 and the roller block 11. In the drawing, two states before and after the arm 5 is driven are shown. As shown in FIGS. 4 and 7, the roller block 11 has a roller base 12. In the roller base 12, the optical disk 10 inserted from the slot 2 is regulated in the vertical direction, and each of the roller blocks 16 is arranged. Two rollers 13 and 14 for loading while supporting the optical disk 10 so as to be sandwiched in the horizontal direction in cooperation with the rollers are provided. The roller 13 is rotatable about a rotation shaft 13a, and the roller 14 is rotatable about the joint shaft 14a by the joint shaft 14a also functioning as a rotation shaft. Further, the roller 13 and the roller 14 have a structure in which the center is constricted like an hourglass, and can come into contact so that the peripheral edge of the optical disc 10 is sandwiched between the constricted portions. Thereby, it is possible to prevent the recording surface of the optical disc 10 from being damaged.

  The roller 13 and the roller 14 are respectively provided with a gear 13 b and a gear 14 b, and each gear is engaged with an idler gear 15 provided at a substantially center of the roller base 12. As a result, the roller 13 and the roller 14 rotate at the same phase and speed in conjunction with each other, so that the optical disk 10 can be smoothly conveyed. Further, since the roller 13 and the roller 14 are connected by a single idler gear 15, the load can be reduced compared to the case of connecting by a belt or the like, and smoother conveyance is possible.

  As will be described later, a boss is provided on the lower surface of the roller base 12 to release the loaded optical disk 10 so that the optical disk 10 can be rotated.

  Further, as shown in FIG. 7, a belt 21 is provided on the back side of the arm 5 along the longitudinal direction thereof. The belt 21 is stretched over a pulley 61 and a pulley 62 provided at both ends on the back side of the arm 5. The pulley 61 and the pulley 62 are respectively provided with a gear 61a and a gear 62a. The gear 61a is engaged with the gear 14b of the roller 14, and the gear of the pulley 62 is engaged with the gear 22a of the loading motor 22. Thereby, the rotation of the belt 21 is transmitted to each gear of the roller block 11 by the driving of the loading motor 22, and the roller 13 and the roller 14 rotate. The loading motor 22 is driven in the forward and reverse directions when the optical disk 10 is loaded and unloaded, whereby the rollers 13 and 14 of the roller block 11 are also driven in the forward and reverse directions, respectively.

  The rotation shaft of the pulley 62 is also used as the rotation shaft 5a of the arm 5. As described above, the arm 5 rotates about the rotation shaft 5a in the direction of the arrow A, and the roller block 11 is connected to the joint shaft. It rotates around 14a and moves in the direction of arrow A while changing the angle with the arm 5.

  As shown in FIG. 4, the roller block 16 has a structure in which the roller base 17 has the same two rollers 18 and 19 as the rollers 13 and 14 as in the roller block 11. The rollers are fixed in a non-rotatable manner, and no gear is provided for each roller. When the arm 6 rotates in the arrow B direction, the roller block 16 moves in the arrow B direction while changing the angle with the arm 6 symmetrically with the roller block 11.

  That is, the roller blocks 11 and 16 and the arms 5 and 6 can be rotated so that the joint shafts 14a and 14b open as the joint shafts 14a and 14b move outward (directions A1 and B1 in FIG. 3). It has become.

  As shown in FIGS. 4 and 7, in the roller block 11, the roller 14 is provided behind the roller 13 in the insertion direction of the optical disc 10, and, as described above, the arm 5 and the arm 5 via the joint shaft 14a. By being connected, in a stationary state of the disk drive device 100 (a state in which the optical disk 10 is not inserted), the biasing force of the coil spring 28 causes the inner side of the disk drive device 100 (A2 side in FIG. 3) to be closer to the roller 13. It is supposed to be located at. Further, as shown in FIG. 4, in the roller block 16, the roller 19 is positioned inward of the disk drive device 100 with respect to the roller 18 in contrast to the roller block 11. When the disk drive device 100 is stationary, the distance between the roller 13 and the roller 18 is smaller than 12 cm, which is the diameter of the large-diameter optical disk 10A, and larger than 8 cm, which is the diameter of the small-diameter optical disk 10B. . The distance between the roller 14 and the roller 19 is smaller than 8 cm. With this structure, the roller 13 mainly operates when loading a large-diameter optical disk 10A having a diameter of 12 cm, and the roller 14 mainly operates when loading a small-diameter optical disk 10B having a diameter of 8 cm. Details of the operation will be described later.

  As shown in FIGS. 2 and 3, a guide groove 4a is provided on the roller block 11 side in front of the upper frame 4 of the loading unit 20, and the rotation shaft 13a of the roller 13 is engaged with the guide groove 4a. . Similarly, a guide groove 4b is provided on the roller block 16 side in front of the upper frame 4, and a rotation shaft 18a of the roller 18 is engaged with the guide groove 4b. By the guide groove 4a and the guide groove 4b, when the arms 5 and 6 are rotated, the rotation shaft 13a is guided in the direction of the double arrow C, and the rotation shaft 18a is guided in the direction of the double arrow D. The roller block 16 moves according to the operation of the rotary shaft 13a and the rotary shaft 18a guided by the guide grooves 4a and 4b. Further, a boss capable of coming into contact with a boss provided on a main cam slider 35 described later is provided on the lower surface of the roller base 12 of the roller block 11 when the loaded optical disk 10 is released.

  The roller bases and the gears of the roller block 11 and the roller block 16 are made of, for example, resin, and a material having a large friction coefficient such as rubber is used for each roller.

  With the above configuration, when the disk 10 is inserted from the slot 2, the arm 5 and the arm 6 are rotated in the A1 direction and the B1 direction, and the roller block 11 and the roller block 16 are moved. While each of the 16 rollers 18 and 19 fixes the disk 10, on the other hand, the rollers 13 and 14 of the roller block 11 rotate so that the optical disk 10 can be loaded and unloaded. That is, the loading unit 20 rotates the disk 10 in the horizontal direction (counterclockwise during loading and clockwise during unloading) by the roller 13 or 14 with the fixed roller 18 or 19 as a rotation axis. Can be loaded.

  As shown in FIG. 3, a non-contact type photosensor 72 for detecting that a predetermined range of the optical disk 10 has been inserted from the slot 2 when the optical disk 10 is loaded, A substrate 71 connected to the photosensor 72 is provided. The photo sensor 72 is electrically connected to the loading motor 22, and when the insertion of the optical disk 10 is sensed, the photo sensor 72 starts driving the loading motor 22 and controls each roller to rotate. The photo sensor 72 instantly senses that the optical disk 10 has been inserted from the slot 2, thereby enabling smooth loading without requiring the user to manually spread each roller and arm.

  The type of the photosensor 72 may be a reflection type in which the light emitting part (light emitting diode) and the light receiving part (photodiode) are provided at the same place, or the light emitting part and the light receiving part sandwich the optical disc 10 to be inserted. The transmission type may be provided separately so as to face each other. Further, a contact type mechanical sensor (mechanical switch) may be used instead of a non-contact type sensor such as a photo sensor, but the photo sensor is preferable in consideration of the feeling of inserting the disk 10.

  Further, in the vicinity of the roller block 11, a mechanical sensor 74 having a mechanical switch for stopping the driving of the roller block 11 when the large-diameter optical disk 10A is ejected, and a mechanical sensor for stopping the driving of the roller block 11 when the small-diameter optical disk 10B is ejected. 75 and a substrate 73 connected to each of the mechanical sensors 74 and 75 are provided. When the optical disk 10 is ejected, a dedicated mechanical sensor is provided for each of the large-diameter optical disk 10A and the small-diameter optical disk 10B of different sizes in order to detect the ejection amount by the opening amount of the roller blocks 11 and 16. The mechanical sensors 74 and 75 are also electrically connected to the loading motor 22, and when the large-diameter optical disk 10A and the small-diameter optical disk 10B are ejected by a predetermined amount and the roller block 11 comes into contact with the switches of the respective sensors, Stop driving. Thus, the large-diameter optical disk 10A and the small-diameter optical disk 10B are discharged to an appropriate position that is easy for the user to remove without causing a small discharge amount or conversely being too large to jump out of the slot 2.

  Needless to say, the mechanical sensors 74 and 75 may be replaced by non-contact type photosensors. However, since it is not necessary to consider the above-mentioned feeling of insertion when the disk 10 is ejected, the mechanical sensors 74 and 75 can be reduced in cost by using cheaper mechanical sensors. Can be planned.

  As shown in FIGS. 3 to 5, at the end of the main frame 7 on the back side of the slot 2, the disk 10 inserted from the slot 2 is guided to the roller block 11 and the roller block 16 side and the disk is driven. A pair of guide members 51a and 51b for preventing dust from entering the apparatus 100 are provided. Details of the guide member 51 will be described later.

  As shown in FIGS. 2 to 4, the upper frame 4 of the loading unit 20 regulates the inclination of the optical disk 10 inserted from the slot 2, and the optical disk 10 is chucked when the optical disk 10 is chucked into a chucking section to be described later. A disk clamp 9 is provided for smoothing the chucking operation by pressing from above. The disc clamp 9 includes a magnet (not shown) for applying a clamping force of the optical disc 10.

  As shown in FIGS. 4 and 5, a rear guide 23 is provided between the upper frame 4 and the lower frame 8 of the loading unit 20. The rear guide 23 waits for the optical disk 10 inserted from the slot 2 on the back side in the insertion direction, and further guides the optical disk 10 in the insertion direction while supporting the optical disk 10 in the vertical direction.

  Specifically, as shown in FIG. 5, the rear guide 23 includes hourglass-shaped disk support portions 27a and 27b for supporting the disk 10 in the vertical direction, and a guide shaft 24 provided so as to protrude in the vertical direction. And 25. As shown in FIGS. 2 and 3, a guide groove 4c is provided behind the upper frame 4 in the insertion direction of the disk 10, and the guide shaft 24 and the guide shaft 25 of the rear guide 23 are provided in the guide groove 4c. Are slidably engaged. Thus, the guide shaft 24 and the guide shaft 25 are guided in the guide groove 4c, so that the rear guide 23 can slide in the direction of arrow E in FIGS.

  A rear guide arm 29 is provided on the back surface of the upper frame 4. The rear guide arm 29 can be rotated in the horizontal direction around the rotation shaft 29 b, and the tip of the rear guide arm 29 moves in conjunction with the rear guide 23 while engaging with the guide shaft 24 of the rear guide 23. A possible engaging portion 29a is formed. The rear guide arm 29 has a coil spring 29 c, one end of which is connected to the back surface of the upper frame 4 and the other end is connected to the rear guide arm 29. By the coil spring 29c, the rear guide arm 29 and the rear guide 23 are urged in the direction of a double-headed arrow E2. Although details will be described later, when the optical disc 10 is inserted, the rear guide 23 supports the optical disc 10 by the disc support portions 27a and 27b and resists the spring force of the coil spring 29c in both directions E1. It is possible to slide to.

  Further, a rear cam slider 32 is provided on the lower frame 8 below the rear guide arm 29. The rear cam slider 32 will be described later. The rear guide 23, the rear guide arm 29, and the rear cam slider 32 are made of resin, for example.

  FIG. 6 is a view showing a pickup unit provided below the loading unit 20 in the main frame 7 and a lifting mechanism for raising and lowering the pickup unit.

  The pickup unit 40 is a unit responsible for recording or reproducing a signal with respect to the optical disc 10. As shown in FIGS. 5 and 6, the pickup unit 40 has, for example, a thin sheet metal base frame 47, and a chucking portion 41 for chucking the optical disk 10, chucking on the front of the base frame 47. A turntable 42 for holding the optical disk 10 is provided. Below the turntable 42, a spindle motor 48 that rotates the turntable 42 and the disk 10 together is provided.

  A pickup mechanism 45 is provided in an opening 47 a provided substantially at the center of the base frame 47. The pickup mechanism 45 has a pickup base 43. The pickup base 43 collects a light beam emitted from a semiconductor laser (not shown) serving as a light source by an objective lens 44 and irradiates the signal recording surface of the optical disc 10. Then, an optical block for detecting the return light beam reflected by the signal recording surface by a photodetector including a light receiving element or the like is held.

  The pickup mechanism 45 includes a biaxial actuator that drives the objective lens 44 to move in an optical axis direction (referred to as a focusing direction) and a direction orthogonal to a recording track of the optical disc 10 (referred to as a tracking direction). Based on the detection signal from the optical disk 10 detected by the photodetector, the objective lens 44 is displaced on the signal recording surface of the optical disk 10 while the objective lens 44 is displaced in the focusing direction and the tracking direction by the biaxial actuator. Drive control such as a focus servo for focusing and a tracking servo for causing the spot of the light beam condensed by the objective lens 44 to follow the recording track is performed. As a mechanism for driving the objective lens 44, in addition to the focusing control and tracking control, the optical beam of the optical disc 10 is irradiated so that the light beam condensed by the objective lens 44 is perpendicularly irradiated to the signal recording surface of the optical disc 10. A triaxial actuator that can adjust the inclination (skew) of the objective lens 44 with respect to the signal recording surface may be used.

  The pickup base 43 is supported by a pair of guide shafts 46a and 46b so as to be slidable in the radial direction of the optical disc 10, and by means of a thread feeding mechanism such as each guide shaft and a displacement driving motor or gear (not shown), The inside of the opening 47a is driven to be displaced in the radial direction of the disk 10.

  As shown in FIGS. 4 and 5, the lower frame 8 of the loading unit 20 causes the chucking portion 41, the turntable 42, the pickup mechanism 45, and the like of the pickup unit 40 to face the loading unit 20 side when moving up and down. An opening 8a is provided for this purpose.

  As shown in FIGS. 4 and 5, the rear guide 23 of the loading unit 20 has disk support portions 27 a and 27 b so as to straddle the pickup mechanism 45, and the displacement driving direction of the pickup base 43. It slides with a large stroke in parallel (in the direction of arrow E in FIG. 3). As a result, the rear guide 23 can support and transport the optical disc 10 with high stability while having a simple structure. Therefore, the rear guide 23 is an auxiliary disc for supporting the optical disc 10 between each roller block and the rear guide. A guide is unnecessary, and cost can be reduced while improving reliability. Further, by this, the rear guide 23 is efficiently disposed between the upper frame 4 and the lower frame 8 of the loading unit 20 while reliably preventing the rear guide 23 and the pickup mechanism 45 from interfering with each other. A half height size of 100 can be realized.

  The pickup unit 40 configured in this manner can be moved up and down (chuck up and chuck down) by the lifting mechanism 30 shown in FIG. 6 when the disk 10 is chucked to the chucking portion 41. . By the elevation, the disk drive device 100 can switch between a loading mode for loading the optical disk 10 and a recording / reproducing mode for recording / reproducing signals to / from the optical disk 10.

  As shown in FIG. 6, the lifting mechanism 30 links the main cam slider 35 connected to the pickup unit 40, the rear cam slider 32 interlocked with the cam slider, and the main cam slider 35 and the rear cam slider 32. For this purpose, a connecting slider 33 and a connecting arm 39, a cam motor 34, various gears and the like are connected. The main cam slider 35 is made of resin, for example, and the connection slider 33 and the connection arm 39 are made of metal, for example.

  A rack 35a is formed on the main cam slider 35, and a small-diameter gear 37b of a slide gear 37 is engaged with the rack 35a. The large-diameter gear 37 a of the slide gear 37 is engaged with a gear formed at the lower part of the pulley 36. One end of a belt 38 is bridged on the pulley 36, and the other end of the belt 38 is bridged on a pulley provided on the upper portion of the cam motor 34. As a result, the driving force of the cam motor 34 is transmitted to the pulley 36 and the slide gear 37, so that the main cam slider 35 slides in a direction substantially parallel to the front panel 1a of the disk drive device 100 (the direction of arrow A in the figure). It is possible.

  FIG. 8 is a view showing a side surface of the main cam slider 35 on the pickup unit 40 side. As shown in the figure, two cam grooves 35 e and 35 f are provided on the side surface of the main cam slider 35. Each cam groove 35e and 35f has lower horizontal portions 35e-1 and 35f-1, upper horizontal portions 35e-2 and 35f-2, and inclined portions 35e-3 and 35f-3 connecting the horizontal portions. is doing. In each cam groove, two bosses (not shown) provided on the side surface of the pickup unit 40 are slidably engaged in the cam grooves 35e and 35f.

  As shown in FIG. 6, the slide gear 37 is provided with an L-shaped connecting arm 39 (only the end thereof is shown in the figure). The connecting arm 39 is rotatable in the direction of arrow C in the figure. Further, a pin 39a and a pin 39b are provided at both ends of the connecting arm 39 so as to protrude in the vertical direction, respectively, and the pin 39a engages with a guide groove 33a formed at one end in the longitudinal direction of the connecting slider 33. The pin 39b is engaged with a cam groove 35b formed in the main cam slider 35.

  As shown in FIGS. 5 and 6, the other end of the connecting slider 33 is provided with a pin 33 b that protrudes in the vertical direction, and the pin 33 b is engaged with the rear cam slider 32 across the lower frame 8. It engages with the joint hole 32a. The rear cam slider 32 is slidable in the direction of arrow B by engaging with a cam slit (not shown) in the direction of arrow B in FIG.

  With the above configuration, as the main cam slider 35 slides in the direction of arrow A by driving the cam motor 34, the connecting arm 39 rotates in the direction of arrow C, and the connecting slider 33 engaged with the connecting arm 39 moves to the arrow. The rear cam slider 32 that slides in the B direction and further engages with the connecting slider 33 can also slide in the arrow B direction.

  When the main cam slider 35 slides, the pickup unit 40 moves up and down by being guided by cam grooves 35e and 35f provided on the side surface of the main cam slider 35 as shown in FIG. When the disk drive device 100 is in the loading mode, the bosses on the side surface of the pickup unit 40 are positioned in the lower horizontal portions 35e-1 and 35f-1 of the cam grooves 35e and 35f. In this case, the bosses are raised by the inclined portions 35e-3 and 35f-3 and are positioned at the upper horizontal portions 35e-2 and 35f-2.

  Further, as shown in FIG. 5, a rear guide arm 29 is provided above the rear cam slider 32. As shown in FIG. 6, two cam grooves 32 b and 32 c are formed on the upper surface of the rear guide arm 29. A boss that can be engaged with the cam grooves 32b and 32c is provided on the lower surface of the rear guide arm 29. When the rear cam slider 32 slides, the boss slides in the cam grooves 32b or 32c. The rear guide arm 29 and the rear guide 23 engaged with the rear guide arm 29 can be slid in the direction of arrow B in the figure. Although details will be described later, the optical guide 10 can be rotated during recording / reproduction on the optical disc 10 by releasing the optical disc 10 guided to the rear side in the insertion direction of the disc drive device 100 by the rear guide 23 by the slide operation. It can be.

  As shown in FIG. 6, two bosses 35 c and 35 d are provided on the upper surface of the main cam slider 35. Although details will be described later, the bosses 35c and 35d abut against the bosses provided on the lower surface of the roller base 12 of the roller block 11 and push the bosses during the sliding operation of the main cam slider 35. Can be released.

  That is, the main cam slider 35 and the rear cam slider 32 play a role of releasing the loaded optical disc 10 and recording / reproducing on the optical disc 10 by respective sliding operations.

  Next, the guide member 51 provided on the back surface of the slot 2 will be described in detail. FIG. 9 is a sectional view showing the vicinity of the slot 2 of the disk drive device 100 from the side surface side. FIG. 10 is an enlarged sectional view of the slot 2 and the guide member 51 of FIG.

  As shown in both figures and FIGS. 3 to 5 above, a plate shape for guiding the inserted optical disk 10 to the roller block 11 and the roller block 16 side at the end of the main frame 7 on the back surface of the slot 2. The guide member 51 is provided. Two guide members 51 (a guide member 51a and a guide member 51b) are provided so as to be opposed to the vertical direction of the slot 2, and a sheet-like member 52a is provided on both surfaces of each guide member 51a and 51b. And the sheet-like member 52b is hold | maintained by sticking, for example.

  As shown in FIG. 10, the sheet-like members 52a and 52b are made of a flexible material such as a nonwoven fabric, for example. Artificial leather or felt may be used in place of the non-woven fabric. Each of the sheet-like members 52a and 52b has bending portions 52a-1 and 52b-1 which are bent on the loop at each end portion on the slot 2 side, respectively. They are provided so as to face each other in the vertical direction. Each bending part 52a-1 and 52b-1 is formed by utilizing the thickness of each guide member 51a and 51b, and in each bending part 52a-1 and 52b-1, of each sheet-like member 52a and 52b. The gaps 53a and 53b are formed so as to be surrounded by the main surface on the side affixed to the guide members 51a and 51b and the ends of the guide members 51a and 51b, respectively.

  Thus, the contact area (arrow A in the figure) in the insertion direction of the optical disk 10 can be increased without increasing the contact pressure of each sheet-like member. Compared to the case where the members are provided in parallel with the front panel in the vertical direction, or the two sheet-like members are provided so as to overlap each other in the vertical direction, the contact area is increased, and the gap due to the secular change of the sheet-like member is increased. Generation | occurrence | production can also be prevented and dustproofness can be improved significantly.

  The guide member 51a and the guide member 51b are provided to be detachable from the main frame 7. Thereby, workability | operativity at the time of manufacture, such as a sticking operation | work of the sheet-like members 52a and 52b, can be improved.

  Next, the operation of the disk drive device 100 configured as described above will be described.

  First, an operation when the optical disk 10 is inserted from the slot 2 will be described. FIG. 11 is a view showing a state in the vicinity of the slot 2 before and after the optical disk 10 is inserted. The figure (a) shows before insertion and the figure (b) shows after insertion.

  As shown in FIG. 5A, in a state where the optical disk 10 is not inserted, the bending portions 52a-1 and 52b-1 of the sheet-like members 52a and 52b provided on the guide members 51a and 51b are Dustproofness is ensured by close contact.

  When the optical disk 10 is inserted as shown in FIG. 5B, the flexures 52a-1 and 52b-1 protrude in the insertion direction of the optical disk 10 (the gaps 52a and 53b are crushed). (B) Inserting the optical disc 10 while deforming, while the bent portion 52a-1 contacts the opposing surface 10-1 of the recording surface 10-2 of the optical disc 10 and the bent portion 52b-1 contacts the recording surface 10-2. Guide in the direction. After the optical disk 10 passes through the slot 2 and the respective sheet-like members 52a and 52b (guide members 51a and 51b), the state again returns to the state shown in FIG. Although not shown, when the optical disk 10 is ejected, each of the bent portions 52a-1 and 52b-1 similarly guides the optical disk 10 in the ejection direction while being deformed so as to project in the ejection direction.

  Thereby, dustproofness can always be maintained before and after insertion and ejection of the optical disk 10. Moreover, since each bending part 52a-1 and 52b-1 mutually contacts with a large area with the bending force, even if insertion and discharge | emission of the optical disk 10 are repeated many times, a wide contact area is maintained with the said bending force. And the dustproofness can be maintained.

  Next, the operation from loading to release of the optical disk 10 inserted from the slot 2 will be described separately for the case of the 12 cm large diameter optical disk 10A and the case of the 8 cm small diameter optical disk 10B.

  First, the operation from loading to release of the large-diameter optical disk 10A will be described.

  12 shows a state of the loading unit 20 just after the large-diameter optical disk 10A is inserted, FIG. 13 shows a state of the loading unit 20 in the middle of transporting the large-diameter optical disk 10A, and FIG. 14 shows the centering of the large-diameter optical disk 10A. FIG. 15 is a diagram showing the state of the loading unit 20 when the centered large-diameter optical disk 10A is released from the lower surface side of the disk drive device 100. FIG. In each of the drawings, only the portions necessary for the description of each operation among the above-described components of the disk drive device 100 are illustrated and described.

  As shown in FIG. 12, the roller blocks 11 and 16 of the loading unit 20 stand by in a state in which the rollers 14 and 19 on the back side in the insertion direction are located inside the rollers 13 and 18 on the near side. Yes. The rear guide 23 stands by at a position where the rear end is L1 in FIG. When the large-diameter optical disk 10A is inserted from the slot 2 and the photosensor 72 shown in FIG. 3 senses the insertion, the loading motor 22 is started to drive the rollers 13 and 14 of the roller block 11. The rotation starts in the direction of arrow R2 in FIG. 12 (clockwise direction as viewed from above).

  When the peripheral edge of the large-diameter optical disk 10A touches the rollers 13 and 18 outside the roller blocks 11 and 16, the large-diameter optical disk 10A rotates the roller 13 while fixing one of the peripheral edges to the roller 18. Thus, by rotating in the direction of the arrow R1 in the figure (counterclockwise direction seen from the top surface) with the fixed peripheral edge as an axis, it is conveyed to the back side in the insertion direction (the direction of arrow E1 in the figure). At this time, the arms 5 and 6 rotate outwardly (in the direction of arrows A1 and B1 in the figure) with the rotation shafts 5a and 6a as axes, respectively, and the roller blocks 11 and 16 are respectively connected to the joint shaft 14a. And 19a as an axis, it moves so as to open while rotating in the arrow A1 direction and arrow B1 direction.

  Subsequently, as shown in FIG. 13, the arms 5 and 6 and the roller blocks 11 and 16 are substantially parallel to each other, and about two thirds of the main surface of the large-diameter optical disc 10A is a guide member 51 (sheet-like shape). After passing the member 52), the peripheral edge of the large-diameter optical disk 10A comes into contact with the disk support parts 27a and 27b of the rear guide 23, and the guide is performed by sliding the rear guide 23 in the direction of arrow E1 in the figure. While being done, it is further conveyed to the back side (arrow E1 direction). At this time, in each of the roller blocks 11 and 16, the rollers 14 and 19 are in contact with the peripheral edge of the large-diameter optical disk 10 </ b> A instead of the rollers 13 and 18, and the large-diameter optical disk 10 </ b> A is pivoted around the peripheral edge in contact with the roller 19. Then, the roller 14 is conveyed in the direction of the arrow E1 while rotating in the direction of the arrow R1 in the figure by the rotation in the direction of the arrow R2 in the figure. Along with the conveyance, the rollers 14 and 19 move in the directions of arrows A2 and B2 in the figure. As described above, the arms 5 and 6 and the roller blocks 11 and 16 are provided in an articulated shape so as to open to the outermost side when the optical disk 10 is transported. In the direction of arrow A and arrow B in FIG.

  Then, as shown in FIG. 14, the large-diameter optical disk 10A passes completely through the guide member 51, and the large-diameter optical disk reaches a position where the rear guide 23 slides to the end and cannot slide any further (position L2 in FIG. 14). When 10A is conveyed, the roller 14 starts to idle. The disk drive device 100 sets this position as the centering position of the large-diameter optical disk 10A, and stops the driving of the loading motor 22 and the rotation of the rollers 13 and 14. The driving stop of the loading motor 22 is stopped by detecting that a predetermined time such as 2 to 3 seconds elapses from the start of driving and the roller 14 is idle, for example, a sliding operation of the rear guide 23, for example. The driving may be stopped by sensing the position where the position stops (position L above).

  When the large-diameter optical disk 10A is centered, the disk drive device 100 releases the large-diameter optical disk 10A in order to rotate the large-diameter optical disk 10A by the spindle motor 48 when recording / reproducing the large-diameter optical disk 10A. That is, in FIG. 14, the roller 14 and the roller 19 supporting the large-diameter optical disk 10A are moved in the directions indicated by the arrows A1 and B1 while maintaining the position of the large-diameter optical disk 10A. The disk support portions 27a and 27b are moved in the direction of arrow E1 in the figure. As a result, as shown in FIG. 15, a clearance that allows the large-diameter optical disk 10A to rotate is formed between the large-diameter optical disk 10A, the rollers 14 and 19, and the disk support portions 27a and 27b. At this time, the rear guide 23 is moved from the position L2 in FIG. 14 by a predetermined distance d1 shown in FIG.

  Here, the release operation will be described in more detail. FIG. 16 is a diagram showing the state of the rear guide 23, the rear guide arm 29, the rear cam slider 32, and the connecting slider 33 before and after the release of the large-diameter optical disc 10A. The figure (a) shows before release, and the figure (b) shows after release, respectively.

  As described above, the rear cam slider 32 is connected to the main cam slider 35 shown in FIG. 6 via the connecting arm 39 and the connecting slider 33. Two cam grooves 32c and 32d are formed on the upper surface of the rear cam slider, and a boss 29d provided on the lower surface of the rear guide arm 29 can be engaged with each of the cam grooves 32c and 32d. ing.

  When the disk drive device 100 detects the completion of the centering of the large-diameter optical disk 10A, it starts driving the cam motor 34 shown in FIG. By driving the cam motor 34, the main cam slider 35 slides from the state before the release of the large-diameter optical disk 10A shown in FIG. When sliding in the A direction, the boss 29d of the rear guide arm 29 is guided by the cam groove 32b of the rear cam slider 32 and moves in the direction of arrow C in the figure. Along with this, the rear guide arm 29 moves in the direction of arrow B in FIG. As a result, the guide shaft 24 of the rear guide 23 engaged with the engaging portion 29a of the rear guide arm 29 moves, so that the rear guide 23 moves in the direction of arrow D in the figure by a predetermined distance d1 from the position of L2. By these operations, as shown in FIG. 5B, the rear side in the insertion direction of the peripheral portion of the large-diameter optical disk 10A is released from the rear guide 23, and the large-diameter with each of the disk support portions 27a and 27b of the rear guide 23. A clearance is formed between the optical disc 10A.

  FIG. 17 is a diagram showing the states of the arms 5 and 6, the roller blocks 11 and 16, and the main cam slider 35 before and after the release of the large-diameter optical disk 10A from the upper surface side of the disk drive device 100. FIG. 4 is a perspective view showing a part of the arm 5, the roller block 11, the main cam slider 35, and the pickup unit 40 before and after releasing the optical disc 10A from the side surface direction of the disc drive device 100. FIG. In each figure, (a) shows before release and (b) shows after release.

  As described above, the boss 35 c and the boss 35 d are provided on the upper surface of the main cam slider 35, and the boss 12 a is provided on the lower surface of the roller base 12 of the roller block 11.

  17A and 18A, when the main cam slider 35 slides in the direction of arrow A in FIGS. 17A and 18A by driving the cam motor 34, the main cam slider 35 is moved. When the boss 35d pushes the boss 12a of the roller block 11, the roller block 11 also moves outward (in the direction of arrow A), and the roller block 16 connected to the roller block 11 via the arms 5 and 6 also outwards ( Move in the direction of arrow B). As a result, as shown in both figures (b), the front side in the insertion direction of the periphery of the large-diameter optical disk 10A is released from the rollers 14 and 19, and the clearance between the rollers 14 and 19 and the large-diameter optical disk 10A is released. Is formed.

  By each operation of the rear cam slider 32 and the main cam slider 35 described above, the large-diameter optical disk 10A is released and becomes rotatable.

  Next, operations from loading to release of the small-diameter optical disk 10B will be described.

  19 shows a state of the loading unit 20 in a state immediately after the small-diameter optical disk 10B is inserted, FIG. 20 shows a state of the loading unit 20 in the middle of conveying the small-diameter optical disk 10B, and FIG. 21 shows a loading unit when centering the small-diameter optical disk 10B. FIG. 22 is a diagram showing a state of the loading unit 20 when releasing the centered small-diameter optical disk 10B from the lower surface side of the disk drive device 100. FIG. Note that description of the same operation as in the case of the large-diameter optical disk 10A is omitted or simplified.

  As shown in FIG. 19, when the small-diameter optical disk 10B is inserted from the slot 2 and the photo sensor 72 detects the insertion, the rollers 13 and 14 of the roller block 11 start to rotate in the direction of arrow R2. Then, when the peripheral edge of the small-diameter optical disk 10B touches the inner rollers 14 and 19, the small-diameter optical disk 10B is fixed to the roller 19 while one of the peripheral edges is fixed to the roller 19, and the fixed peripheral edge is By rotating in the direction of arrow R1 in the figure as an axis, the sheet is conveyed to the back side in the insertion direction (direction of arrow E1 in the figure). At this time, each arm 5 and 6 is rotated outward (in the direction of arrow A1 and arrow B1 in the figure), and at the same time, each roller block 11 and 16 is moved while rotating in the direction of arrow A1 and arrow B1 in the figure. To do.

  Subsequently, as shown in FIG. 20, when the small-diameter optical disc 10B completely passes through the guide member 51 (sheet-like member 52), the peripheral portion of the small-diameter optical disc 10B is sandwiched between the disc support portions 27a and 27b of the rear guide 23. Then, the rear guide 23 further conveys it to the back side (arrow E1 direction). Along with the conveyance, the rollers 14 and 19 move in the directions of arrows A2 and B2 in the figure.

  As shown in FIG. 21, when the small-diameter optical disk 10B is further conveyed while being supported by the rear guide 23, the rollers 14 and 19 are the same as the positions of the rollers 14 and 19 in the stationary state of the disk drive device 100. Position. In other words, the distance a between the roller 14 and the roller 19 in the stationary state and the distance between the two points on the peripheral edge of the small-diameter optical disk 10B in contact with the rollers 14 and 19 are substantially equal. As a result, the roller 14 and the roller 19 can no longer hold the small-diameter optical disk 10B, and the roller 14 starts to idle. The disk drive device 100 sets the position as the centering position of the small-diameter optical disk 10B, and stops the driving of the loading motor 22 and the rotation of the rollers 13 and 14. Further, at this time, the rear guide 23 guides the small-diameter optical disk 10B until the rear end thereof is at the position shown in FIG.

  When the small-diameter optical disk 10B is centered, the disk drive device 100 releases the small-diameter optical disk 10B for recording / reproduction with respect to the small-diameter optical disk 10B, as in the case of the large-diameter optical disk 10A. That is, in FIG. 21, the roller 14 and the roller 19 that are in contact with the small-diameter optical disk 10B are moved in the directions of arrows A1 and B1 in the same figure while the position of the small-diameter optical disk 10B remains unchanged. The parts 27a and 27b are moved by a predetermined distance d2 in the direction of the arrow E1. Thus, as shown in FIG. 22, a clearance is formed between the small-diameter optical disk 10B, the rollers 14 and 19, and the disk support portions 27a and 27b so that the small-diameter optical disk 10B can rotate.

  Here, the release operation will be described in more detail. FIG. 23 is a view showing the state of the rear guide 23, the rear guide arm 29, the rear cam slider 32, and the connecting slider 33 before and after the release of the small-diameter optical disc 10B. The figure (a) shows before release, and the figure (b) shows after release, respectively.

  When the disk drive device 100 detects the completion of centering of the small-diameter optical disk 10B, it starts driving the cam motor 34. When the rear cam slider 32 slides in the direction of arrow A from the state before the release of the small-diameter optical disk 10B shown in FIG. 9A by driving the cam motor 34, the boss 29d of the rear guide arm 29 is moved to the rear. It is guided by the cam groove 32c of the cam slider 32 and moves in the direction of arrow C in the figure. Accordingly, the rear guide arm 29 moves in the direction of arrow B in the figure. As a result, the guide shaft 24 of the rear guide 23 moves, so that the rear guide 23 moves by a predetermined distance d2 from L3. By these operations, as shown in FIG. 5B, the rear side in the insertion direction of the peripheral portion of the small-diameter optical disc 10B is released from the rear guide 23, and the respective disc support portions 27a and 27b of the rear guide 23 and the small-diameter optical disc 10B. A clearance is formed between the two.

  FIG. 24 is a diagram showing the states of the arms 5 and 6, the roller blocks 11 and 16, and the main cam slider 35 before and after the release of the small-diameter optical disk 10B from the upper surface side of the disk drive device 100. FIG. 2 is a perspective view showing a part of the arm 5, the roller block 11, the main cam slider 35, and the pickup unit 40 before and after the release of the disk drive device 100 from the side surface direction. In each figure, (a) shows before release and (b) shows after release.

  24A and 25A, when the main cam slider 35 slides in the direction of arrow A in FIGS. 17A and 18A by driving the cam motor 34, the main cam slider 35 is moved. When the boss 35c pushes the boss 12a of the roller block 11, the roller block 11 also moves outward (arrow A direction), and the roller block 16 also moves outward (arrow B direction). Thereby, as shown in both figures (b), the front side in the insertion direction of the peripheral portion of the small-diameter optical disk 10B is released from the rollers 14 and 19, and a clearance is formed between the rollers 14 and 19 and the small-diameter optical disk 10B. Is done.

  By the operations of the rear cam slider 32 and the main cam slider 35 described above, the small-diameter optical disk 10B is released and becomes rotatable.

  As described above, the centering method and the release method are made different between the large-diameter optical disk 10A and the small-diameter optical disk 10B, thereby simplifying the cam mechanism and suppressing an increase in the number of parts, compared with the case where the cam mechanism is provided for each. You can go down. This also provides a space in the disk drive device 100, so that it is possible to easily divert components for a general and inexpensive tray-type disk drive device and further reduce costs. In other words, the slot-in type disk drive device such as the disk drive device 100 of the present embodiment has been a bottleneck due to its relatively high manufacturing cost. Therefore, the advantages of the slot-in type such as a small number of operations can be utilized.

  Further, in the disk drive device 100, a chucking operation is performed together with the release operation. The chucking operation will be described below. FIG. 26 is a diagram illustrating a state of the lifting mechanism 30 and the pickup unit 40 before and after chucking of the optical disk 10. FIG. 4A shows before chucking, and FIG. 4B shows after chucking.

  In the state before chucking of the optical disc 10 as shown in FIG. 6A, the two bosses provided on the side surface of the pickup unit 40 are located on the side surface of the main cam slider 35 as shown in FIG. The two cam grooves 35e and 35f are engaged with the lower horizontal portions 35e-1 and 35f-1, respectively.

  From this state, when the main cam slider 35 is slid in the direction of the arrow A in FIG. 26A by driving the cam motor 34, the bosses on the side surface of the pickup unit 40 are guided to the cam grooves 35e and 35f and horizontally. The portions 35e-1 and 35f-1 move through the inclined portions 35e-31 and 35f-3 to the upper horizontal portions 35e-2 and 35f-2. By this operation, the pickup unit 40 moves up in the vertical direction (in the direction of arrow R in FIG. 5A) and enters the chuck-up state as shown in FIG. At this time, the chucking portion 41 of the pickup unit 40 cooperates with the disc clamp 9 provided on the upper frame 4 of the loading unit 20 to chuck the optical disc 10 in the center hole thereof. When the chucking operation is completed, the optical disc 10 can be rotated by the spindle motor 48, and a signal can be recorded / reproduced with respect to the optical disc 10.

  Next, an operation when the chucked optical disk 10 is ejected from the slot 2 will be described.

  When the user presses the eject button 3 provided on the front panel 1 a of the housing 1 in a state where the optical disk is in the recording / reproducing mode, the disk drive device 100 causes the spindle motor 48 to rotate the optical disk 10. The optical disk 10 is chucked down. The chuck down operation is the reverse of the chuck up operation. That is, the cam motor 34 is driven in the opposite direction to that at the time of chucking, and the main cam slider 35 is also slid in the opposite direction to that at the time of chucking. Thereby, each boss on the side surface of the pickup unit 40 located in the horizontal portions 35e-2 and 35f-2 above the cam grooves 35e and 35f is guided to the lower horizontal portions 35e-1 and 35f-1. As a result, the pickup unit 40 is lowered. As a result, the optical disk 10 is detached from the chucking portion 41. Further, along with this lowering operation, the release of the optical disk 10 is released by the sliding operation of the main cam slider 35 and the rear cam slider 32, and the optical disk 10 includes the rollers 14 and 19 of the roller blocks 11 and 19 and the rear guides 23. It is supported at the centering position by the disk support portions 27a and 27b.

  When the completion of the chuck down is detected, the disk drive device 100 drives the loading motor 22 in the direction opposite to that at the time of loading, and the arms 5 and 6 and the roller blocks 11 and 16 are opposite to those at the time of loading. Drive in the direction. As a result, the optical disk 10 is conveyed in the ejection direction.

  Then, as the optical disk 10 is transported in the ejection direction, the mechanical sensor 74 or 75 shown in FIG. 3 senses each ejection amount of the large-diameter optical disk 10A or the small-diameter optical disk 10B, and each arm 5 and 6 and each roller block. When it is sensed that 11 and 16 are closed to a predetermined position and discharged to a predetermined position, the driving of the loading motor 22 is stopped and the conveyance of the optical disk 10 is stopped. As a result, the optical disk 10 is ejected from the slot 2 through the guide member 51 (sheet-like member 52) to a position where the user can easily take it out.

  It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.

  In the above-described embodiment, the roller block 11 having the rollers 13 and 14 that are rotatable on the right side as viewed from the upper surface of the disk drive device 100 is provided, and each roller of the left roller block 16 is fixed. You may provide reverse.

  Further, the rollers 18 and 19 of the roller block 16 may also be rotatable so that the optical disk can be conveyed in cooperation with the roller block 11.

  The disk drive device 100 described in the above embodiment is mounted on an electronic device such as a PC. FIG. 27 is a diagram showing a PC 200 on which the disk drive device 100 is mounted. The PC 200 has a housing 201 for holding the disk drive device 100, and the disk drive device 100 is provided such that the front panel 1a and the slot 2 are exposed from the front panel 201a of the housing 201. Thereby, the optical disk 10 can be inserted from the front panel 201a side of the housing 201.

  In addition to the PC, the disk drive device 100 can be mounted on various electronic devices such as audio / visual devices, game devices, car navigation devices, and robot devices.

1 is a perspective view illustrating an appearance of a disk drive device 100 according to an embodiment of the present invention. FIG. 2 is a perspective view of a state in which a housing 1 (excluding a front panel 1a) of the disk drive device 100 in FIG. 1 is removed. FIG. 3 is a plan view of the loading unit 20 in FIG. 2. FIG. 4 is a perspective view showing a state in which the upper frame 4 of FIGS. 2 and 3 is removed. FIG. 5 is a perspective view showing a state in which the main frame 7, the arm 5 and the arm 6, the roller block 11 and the roller block 16, the loading motor 22 and the like of FIG. 4 are removed. It is a perspective view of the state which removed the upper frame 4 of FIG. It is the figure which showed the pick-up unit and lifting mechanism in one Embodiment of this invention. It is the figure which showed the detail of the arm 5 and the roller block 11 in FIG. It is the figure which showed the side at the side of the pick-up unit 40 of the main cam slider 35 in one Embodiment of this invention. FIG. 2 is a cross-sectional view showing the vicinity of a slot 2 of the disk drive device 100 according to the first embodiment of the present invention from the side surface side. FIG. 10 is an enlarged cross-sectional view of the slot 2 and the guide member 51 of FIG. 9. FIG. 4 is a view showing a state in the vicinity of a slot 2 before and after insertion of an optical disc 10 in an embodiment of the present invention. FIG. 6 is a diagram showing a state of the loading unit 20 in a state immediately after inserting a large-diameter optical disc 10A in an embodiment of the present invention. It is the figure which showed the mode of the loading unit 20 in the middle of conveyance of 10 A of large diameter optical disks in one Embodiment of this invention. FIG. 5 is a diagram showing a state of the loading unit 20 when centering a large-diameter optical disc 10A in an embodiment of the present invention. FIG. 6 is a view showing a state of the loading unit 20 when releasing the centered large-diameter optical disc 10A in the embodiment of the present invention. In the embodiment of the present invention, it is a diagram showing the state of the rear guide 23, the rear guide arm 29, the rear cam slider 32, and the connecting slider 33 before and after the release of the large-diameter optical disc 10A. FIG. 6 is a diagram showing the states of the arms 5 and 6, the roller blocks 11 and 16, and the main cam slider 35 before and after the release of the large-diameter optical disc 10 </ b> A from the upper surface side of the disc drive device 100 in the embodiment of the present invention. FIG. 3 is a perspective view showing a part of the arm 5, the roller block 11, the main cam slider 35, and the pickup unit 40 before and after releasing the large-diameter optical disc 10A from the side surface direction of the disc drive device 100 in the embodiment of the present invention. . FIG. 6 is a view showing a state of the loading unit 20 in a state immediately after a small-diameter optical disc 10B is inserted in an embodiment of the present invention. It is the figure which showed the mode of the loading unit 20 in the middle of conveyance of the small diameter optical disk 10B in one Embodiment of this invention. FIG. 6 is a diagram showing a state of the loading unit 20 when centering the small-diameter optical disc 10B in the embodiment of the present invention. FIG. 6 is a view showing a state of the loading unit 20 when releasing the centered small-diameter optical disc 10B in the embodiment of the present invention. In one embodiment of the present invention, it is a diagram showing the state of the rear guide 23, the rear guide arm 29, the rear cam slider 32, and the connecting slider 33 before and after the release of the small-diameter optical disc 10B. FIG. 6 is a diagram showing the states of the arms 5 and 6, the roller blocks 11 and 16, and the main cam slider 35 before and after the release of the small-diameter optical disk 10B from the upper surface side of the disk drive device 100 in the embodiment of the present invention. FIG. 4 is a perspective view showing a part of the arm 5, the roller block 11, the main cam slider 35, and the pickup unit 40 before and after the release of the small-diameter optical disk 10B from the side surface direction of the disk drive device 100 in the embodiment of the present invention. FIG. 6 is a view showing a state of an elevating mechanism 30 and a pickup unit 40 before and after chucking a large-diameter optical disc 10A and a small-diameter optical disc 10B in an embodiment of the present invention. It is the figure which showed PC which mounts the disk drive device 100 in one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Housing 1a ... Front panel 2 ... Slot 4 ... Upper frame 4c ... Guide groove 5, 6 ... Arm 10 ... Optical disk 10A ... Large diameter optical disk 10B ... Small diameter optical disk 11, 16 ... Roller block 12, 17 ... Roller base 13, DESCRIPTION OF SYMBOLS 14, 18, 19 ... Roller 13b, 14b ... Gear 15 ... Idler gear 14a, 19a ... Joint shaft 20 ... Loading unit 22 ... Loading motor 23 ... Rear guide 24, 25 ... Guide shaft 27 ... Disc support part 29 ... Rear guide arm 29a ... engaging portion 29b ... rotating shaft 29c ... coil spring 29d ... boss 30 ... elevating mechanism 32 ... rear cam sliders 32a, 32b ... cam groove 33 ... connecting slider 34 ... cam motor 35 ... main cam slider 39 ... connecting arm 40 ... pickup Unit 43 ... Pick Base 41 ... Chucking part 48 ... Spindle motor 46 ... Guide shafts 51a, 51b ... Guide members 52a, 52b ... Sheet-like members 52a-1, 52b-1 ... Deflection parts 53a, 53b ... Gap 72 ... Photosensors 74, 75 ... Mechanical sensor 100 ... disk drive 200 ... PC
201 ... Case

Claims (7)

A housing having a slot on the front surface into which a disk-shaped recording medium is inserted and ejected;
A mounting portion provided in the housing for mounting the inserted recording medium, and a rotation for rotating the recording medium mounted on the mounting portion around a substantially vertical axis of a main surface of the recording medium. Pickup unit having a drive mechanism, a pickup mechanism capable of reproducing a signal recorded on the recording medium rotated by the rotation driving mechanism, and a pickup moving mechanism for moving the pickup mechanism in the radial direction of the recording medium When,
The recording medium is provided in the vicinity of the slot in the housing, and rotates around an axis substantially parallel to the axis while supporting the peripheral edge of the recording medium to be inserted and ejected. A roller mechanism having a roller that can be transported between
By moving in the insertion direction while supporting the peripheral edge of the recording medium provided in the insertion direction of the roller mechanism and in the substantially vertical direction of the pickup unit and conveyed by the roller mechanism, the recording And a guide mechanism capable of guiding a medium to a centering position where the medium can be mounted on the mounting portion. The disk drive device according to claim 1,
The guide mechanism is
A first support portion provided in the vicinity of the roller mechanism and capable of supporting a peripheral portion of the recording medium;
A disk drive device comprising: a second support portion provided substantially symmetrically with the first support portion with respect to the insertion direction and the diameter direction of the recording medium, and capable of supporting a peripheral portion of the recording medium. . The disk drive device according to claim 2,
The disk drive device according to claim 1, wherein each of the first and second support portions includes a constricted portion that restricts the peripheral edge portion in the vertical direction. The disk drive device according to claim 3, wherein
A frame provided in the housing, holding the roller mechanism and the guide mechanism, and further having a guide groove formed in the insertion direction;
The guide mechanism is
A protruding portion provided to protrude in the vertical direction and slidably engaged with the guide groove;
And a biasing member connected to the frame and biasing the guide mechanism in the ejection direction. The disk drive device according to claim 1,
The disk drive device according to claim 1, wherein the pickup unit is provided such that the pickup moving mechanism moves the pickup mechanism in the insertion direction. The disk drive device according to claim 1,
The disk drive device, wherein the recording medium is a first recording medium having a first diameter or a second recording medium having a second diameter smaller than the first diameter. A first housing having a slot into which a disk-shaped recording medium is inserted and ejected on the front surface; a mounting portion provided in the housing for mounting the inserted recording medium; and mounted on the mounting portion A rotational drive mechanism that rotates the recording medium about an axis in a substantially vertical direction of a main surface of the recording medium, and a pickup mechanism that can reproduce a signal recorded on the recording medium that is rotationally driven by the rotational drive mechanism A pickup unit having a pickup moving mechanism for moving the pickup mechanism in a radial direction of the recording medium, and a peripheral portion of the inserted and ejected recording medium provided near the slot in the housing. And a roller mechanism having a roller capable of conveying the recording medium between the slot and the mounting portion by rotating about an axis substantially parallel to the axis. By moving in the insertion direction while supporting the peripheral edge of the recording medium provided in the insertion direction of the roller mechanism and in the substantially vertical direction of the pickup unit and conveyed by the roller mechanism, the recording A disk drive device having a guide mechanism capable of guiding a medium to a centering position where the medium can be mounted on the mounting portion;
An electronic device comprising: a second housing capable of holding the disk drive device.

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