JP4727561B2 - Disk transport device and disk device - Google Patents

Description

  The present invention relates to a disk transport device that transports a disk-shaped recording medium, and a disk device.

  Conventionally, disk devices that process optical disks are known. (For example, refer to Patent Document 1).

  The device described in Patent Document 1 is a disk reproducing device that transports a disk by a transfer roller and positions the disk above a turntable by a positioning mechanism. This positioning mechanism has left and right positioning levers that are pivotally supported by fulcrum pins and intersect each other, and fulcrum pins that engage engagement holes provided in these positioning levers, and are rotated by a solenoid. And a switching lever. Also, in the vicinity of the disc insertion opening of this disc reproducing apparatus, a center sensor, left and right sensors provided on the left and right of the center sensor, and outer sensors are provided, and the diameter of the disc inserted from the disc insertion opening by these sensors is set. Determine. When the insertion of the large-diameter disk is confirmed by the sensor, the switching lever is rotated to rotate the left and right positioning levers so that the positioning pin is at the most open position, and the insertion of the small-diameter disk is confirmed. Then, the structure which rotates the positioning lever on either side so that the positioning pin may be in the nearest position is taken.

Japanese Unexamined Patent Publication No. 02-118955 (refer to pages 3 to 5 and FIGS. 1 to 7)

  By the way, in the conventional structure like the above-mentioned patent document 1, it is necessary to push the disk manually and rotate the transfer roller when starting to carry in the disk. However, since the transfer roller is connected to a motor, it is necessary to rotate the motor in order to rotate the transfer roller. Here, since the motor is mechanically locked in a state where the motor is not rotationally driven, a large force is required to rotate the transfer roller, and the insertion feeling deteriorates as an example. .

  An object of the present invention is to provide a disk transport apparatus and a disk apparatus that can easily carry in a disk.

The present invention according to claim 1 has a longitudinal insertion / extraction port into which a disc-shaped recording medium can be inserted / extracted, and a holding means for holding the recording medium carried in from the insertion / extraction port is accommodated. A disk that is provided inside a housing and carries a recording medium having two different diameters, a large-diameter recording medium as the recording medium, and a small-diameter recording medium having a smaller engagement dimension than the large-diameter recording medium. In the vicinity of one end side in the longitudinal direction of the insertion / extraction port in the housing, the proximal end side is pivotally supported in the housing so as to be rotatable, a loading arm side is provided to be retractable into the path of the recording medium, provided at the tip portion of the loading arm, it is rotated by a driving force of said driving means to convey the pre-crisis recording medium and the roller, before It is provided at a position facing the loading arm across the transport path, and a base end side is pivotally supported in the casing so as to be rotatable in the vicinity of the other end side in the longitudinal direction of the insertion / extraction port in the casing. The leading end side can be moved back and forth in the recording medium conveyance path, and is formed longitudinally along the conveyance direction of the recording medium, and a sub-loading arm that guides the loading of the recording medium by rotating together with the loading arm. In addition, the loading slide plate that is movable along the recording medium conveyance direction in conjunction with the rotation of the loading arm at one end on the insertion / ejection port side is orthogonal to the conveyance surface of the recording medium. In a plan view seen from the direction, it is provided at a position that does not overlap the holding means, and is connected to the other end side of the loading slide plate, The movement of over loading the slide plate, and the link plate to be movable in a direction orthogonal to the conveying direction is provided in an drive transmission means to transmit the driving force of said driving means to said roller, said roller, When the recording medium is rotated by a predetermined angle or more in the direction of carrying the recording medium into the housing , the driving force of the driving means can be transmitted to the roller, and the recording medium is not inserted into the housing. Between the initial state and the state in which the driving force of the driving means can be transmitted to the roller, the connecting means for enabling the roller to rotate idly and a switch for detecting the movement of the link plate, A control circuit unit that generates a driving force by driving the driving means when the movement of the link plate is detected by the switch, and In the initial state, the loading arm is such that the roller is positioned in the transport path of the recording medium, and the connecting means rotates the loading arm at least from the initial state by inserting the recording medium. The disk transport device is characterized in that the roller can be rotated idly until the switch detects the movement of the link plate in conjunction with the rotation of the loading arm by the switch .

The invention according to claim 10, a disk conveying device according to any one of claims 1 to 9, and the housing provided with the insertion-ejection opening for loading and unloading the recording medium, carried within the housing said holding means for holding said recording medium which is comprised in at least one of the recording process for recording information on reading process and the recording medium is read the information recorded on the recording medium held by the holding means An information processing unit that performs the process is provided.

  Hereinafter, a disk device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an internal configuration in an initial state of a disk device according to an embodiment of the present invention. FIG. 2 is a plan view showing the configuration of the carry-in part and the carry-out part of the disk device in the embodiment. FIG. 3 is a plan view showing configurations of a drive unit, a carry-out unit, and a clamp unit of the disk device in the embodiment. FIG. 4 is a front view of the decorative board in the embodiment. FIG. 5 is a plan view showing the vicinity of the drive unit in the embodiment. FIG. 6 is a perspective view showing the configuration of the first transmission gear that constitutes the drive unit in the embodiment. FIG. 7 is a cross-sectional view of the subloading arm in the embodiment. FIG. 8 is a side view of the sub-loading arm as viewed from the proximal end side to the distal end side. FIG. 9 is a plan view showing a part of the link plate of the disk device in the embodiment. FIG. 10 is a plan view of the back side of the first shift cam constituting the clamp portion of the disk device in the embodiment. FIG. 11 is a side view of the first shift cam in the embodiment as viewed from the left wall side. FIG. 12 is a side view of the vicinity of the emergency lever of the emergency mechanism in the embodiment.

[Disk device configuration]
In FIG. 1, reference numeral 100 denotes a disk device according to an embodiment of the present invention. This disk device 100 is recorded on a recording surface (not shown) provided on at least one surface of an optical disk 1 as a disk-shaped recording medium. A reading process for reading information and a recording process for recording various information on the recording surface are performed. The disk device 100 is a so-called thin slot-in type disk device that is mounted on an electric device having a relatively limited thickness dimension, such as a notebook personal computer. In the present embodiment, a thin disk device 100 mounted on a notebook personal computer is exemplified. However, the present invention is not limited to this, and for example, a game machine, a so-called video device that performs video data recording / playback processing, It may be attached. Further, the present invention can also be a configuration that performs only one of the reading process and the recording process.

  Further, the disk device 100 can store a large-diameter disk 1A having a diameter of 12 cm and a small-diameter disk 1B having a diameter of 8 cm as the optical disk 1. The disk-shaped recording medium is not limited to the optical disk 1 but can be any disk-shaped recording medium such as a magnetic disk or a magneto-optical disk.

  The disk device 100 includes a housing 10 that forms a substantially box-shaped case body made of, for example, metal and having an internal space. In this case 10, the lower surface in FIG. 1 is the front surface 10A, the left side wall of the case 10 in FIG. 1 is the left wall 10B, the right side wall of the case 10 in FIG. The upper surface in FIG. 1 is appropriately referred to as a rear surface 10D, the front side in FIG. 1 is referred to as a top surface side, and the rear side in FIG.

  The casing 10 includes a casing main body 11 and a wing 12 provided on the right side of the casing main body 11 in the figure. The casing body 11 and the wing 12 have a top surface formed on the same plane and a bottom surface formed in different height dimensions. That is, the bottom surface of the wing portion 12 is formed with a smaller distance dimension from the top surface than the bottom surface of the housing main body portion 11. On the right wall 10 </ b> C side of the housing body 11, a step wall 13 is formed that rises from the bottom surface of the housing body 11 and connects the bottom surface of the housing body 11 and the bottom surface of the wing 12. .

A base plate 111 is fixed to the rear surface 10D side of the housing body 11. The base plate 111 is formed of a metal such as aluminum in a substantially plate shape that is long in the left-right direction (the direction from the left wall 10B to the right wall 10C). The base plate 111 faces the bottom surface of the housing body 11 and is disposed on a plane that is substantially the same height as the bottom surface of the wing 12.
Link guide holes 112 and 113 are formed on both ends of the base plate 111 in the left-right direction and are elongated in the front-rear direction (the direction from the front surface 10A to the back surface 10D). Further, a plate link pin guide hole 114 is provided in the longitudinal direction on the back surface 10D side of the left wall 10B of the base plate 111 in the longitudinal direction.
Further, on the left wall 10B side of the base plate 111, a guide arm guide groove 115 that is inclined from the back surface 10D side of the right wall 10C side toward the front surface 10A side of the left wall 10B is provided. Furthermore, a substantially triangular guide arm guide window 116 is formed on the left wall 10B side of the guide arm guide groove 115 of the base plate 111.
In addition, an arc-shaped eject arm regulating groove 117 is formed in a substantially central portion on the back surface 10D side of the base plate 111 from the back surface 10D side to the front surface 10A side.

  The wing portion 12 includes a loading arm biasing portion 12A in the vicinity of the right wall 10C and in the vicinity of the front surface 10A. The loading arm biasing portion 12A includes an arm contact portion 12B that faces the front surface 10A, and the arm contact portion 12B is biased toward the back surface 10D by a biasing means such as a spring member.

Further, an insertion / ejection port 14 for inserting and ejecting the optical disc 1 is formed on the front surface 10A of the housing 10 so as to extend from the housing body 11 to the wing 12 in the left-right direction in FIG. . Furthermore, a connector portion 15 is formed on the left wall 10B side of the back surface 10D of the housing 10. The connector unit 15 is electrically connected to the control circuit unit. The connector unit 15 can be connected to an external device such as a personal computer external to the disk device 100, for example, and transmits / receives various types of information from the external device or a plug to which power is supplied.
Further, a closing lever 16 that can close the insertion / extraction port 14 is provided in the vicinity of the step wall 13 on the front face 10 </ b> A side of the housing 10. As shown in FIG. 1, the closing lever 16 is formed in a substantially U shape in a plan view, and both ends of the U shape are rotatably supported by support portions provided on the bottom surface of the housing 10. The closing lever 16 is rotated in accordance with, for example, a moving state of a first shift cam 71 of a disk clamp unit 70 to be described later, and the optical disk 1 is transported into the housing 10 so that information processing is possible. In this state, the insertion / extraction port 14 is closed.

Furthermore, a decorative plate 10A1 that constitutes a case body as shown in FIG. 4 is attached to the front surface 10A side of the housing 10. The decorative plate 10A1 is provided with a disk insertion hole 10A2 that is opposed to the insertion / extraction opening 14 and that is long in the left-right direction. A first emergency pin insertion hole 10A3 and a second emergency pin insertion hole 10A4 are provided on the right wall 10C side below the disk insertion hole 10A2. The first emergency pin insertion hole 10A3 is formed so as to be located on the extension of the moving path of the first shift cam 71 of the disk clamp portion 70 of the conveying means 30 as a disk conveying device to be described later. Further, the second emergency pin insertion hole 10A4 is formed in the vicinity of the loading link arm 521 of the loading link mechanism 52 of the loading portion 50 described later.
Further, an eject button 10A5, an access confirmation window 10A6, and the like are provided on the left wall 10B side below the disc insertion hole 10A2 of the decorative plate 10A1. The eject button 10A5 is provided on the back surface 10D side so that it can be pressed. For example, when the user presses the eject button 10A5, an operation signal is output to the effect that the optical disk 1 is ejected to the control circuit unit described later. The access confirmation window 10A6 is provided with an access lamp (not shown) connected to the control circuit unit. For example, the access lamp is turned on when the optical disc 1 is inserted into the disc device 100 and predetermined information processing is performed on the optical disc 1, and the access confirmation window 10A6 is used to confirm the lighting state of the access lamp. The state of the optical disc 1 can be confirmed.

  In the housing 10, a disk processing unit 20 as a holding unit called a so-called traverse mechanism, a transport unit 30 as a disk transport device for transporting the optical disk 1, and a control circuit unit (not shown) are provided. It has been.

  The disk processing unit 20 is formed in the longitudinal direction from the vicinity of the insertion / extraction port 14 of the housing 10, that is, from the left wall 10 </ b> B side of the front surface 10 </ b> A toward the substantially center position of the housing 10. The disk processing unit 20 is formed, for example, in a substantially plate shape with a metal plate, and has a pedestal 21 that is long in the same direction as the longitudinal direction of the disk processing unit 20.

  The pedestal portion 21 has a longitudinal end corresponding to a substantially central position of the housing 10 and can swing within the height direction of the housing 10 so that the base portion 21 can be oscillated through an elastic float rubber 21A. It is arranged. The pedestal 21 has a longitudinal processing opening 21 </ b> B cut out substantially in the center along the longitudinal direction. The disk rotation driving means 22 is disposed at one end of the processing opening 21 </ b> B of the pedestal 21, that is, at a substantially central position of the housing 10. The disk rotation driving means 22 includes a spindle motor (not shown) and a turntable 23 provided integrally with the output shaft of the spindle motor. The spindle motor is electrically connected to the control circuit unit and is driven by electric power supplied from the control circuit unit. The turntable 23 is provided at a substantially central portion inside the housing 10 and is rotationally driven in a state where the optical disk 1 is disposed.

  In addition, a disc engaging portion 23 </ b> A capable of engaging and disengaging a center hole, which is a circular hole provided at the center of the optical disc 1, is formed at the center of the turntable 23 so as to protrude to the top surface side. Further, a claw member (not shown) that prevents the optical disc 1 from falling off is provided on the periphery of the disc engaging portion 23A so that the optical disc 1 protrudes toward the top surface while being engaged with the disc engaging portion 23A. .

  An information processing unit 24 is disposed on the pedestal unit 21. The information processing unit 24 is supported in a state of being bridged between a pair of guide shafts 25 having a central axis substantially along the longitudinal direction of the pedestal unit 21, and a turntable in the processing opening 21 </ b> B by a moving mechanism (not shown). 23 is closely spaced. The information processing unit 24 includes a pickup mechanism having a light source (not shown), a pickup lens 24A for converging light from the light source, and an optical sensor (not shown) for detecting outgoing light reflected by the optical disc 1.

  The transport means 30 carries the optical disc 1 inserted from the insertion / ejection port 14 into the casing 10, places the loaded optical disc 1 on the turntable 23 of the disc processing unit 20, The internal optical disk 1 is carried out to the outside. The transport unit 30 includes a drive unit 40, a carry-in unit 50, a carry-out unit 60, a disc clamp unit 70, an emergency operation unit 80, and the like.

  As shown in FIGS. 1, 3, and 5, the driving unit 40 supplies a driving force that drives each unit of the transport unit 30. The drive unit 40 includes a drive motor 41 as drive means, and a drive transmission gear group 42 constituting drive transmission means.

The drive motor 41 is disposed in the vicinity of the insertion / extraction port 14 on the front surface 10 </ b> A of the housing 10 and between the disk processing unit 20 and the stepped wall portion 13, which becomes a dead space due to the disk processing unit 20.
The drive motor 41 is electrically connected to the control circuit unit, and rotates the rotation shaft based on a control signal from the control circuit unit. Also, a worm gear 411 as a drive side gear that constitutes a drive transmission means is provided at the tip of the rotation shaft, and this worm gear 411 transmits a rotational driving force to a drive transmission gear group 42 that constitutes a drive transmission unit. To do.

  The drive transmission gear group 42 includes a first transmission gear 421 as a connecting means, a shift drive branch gear 422 as a cam drive member, a roller drive branch gear 423 as a roller side gear, and a cam shift gear constituting the drive transmission means. 425.

  As shown in FIG. 6, the first transmission gear 421 includes a male gear 421A as a first gear and a female gear 421B as a second gear.

The male gear 421A is disposed on the bottom surface side of the female gear 421B. The male gear 421A is provided integrally with the first large-diameter transmission gear 421A1 formed on the periphery and the first large-diameter transmission gear 421A1 and on the bottom surface side of the first large-diameter transmission gear 421A1. A first bottom side small diameter transmission gear 421A2. Further, on the top surface side of the male gear 421A, a gear pin 421A3 as an engaging pin protrudes toward the female gear 421B near the periphery.
The female gear 421B is provided coaxially with the male gear 421A on the top side of the male gear 421A. The female gear 421B includes a first top surface side small diameter transmission gear 421B1 (see FIGS. 5 and 6) on the periphery.
The female gear 421B has a gear pin engaging groove 421B2 as a substantially arc-shaped arc groove in the vicinity of the outer peripheral edge on the bottom surface side. Further, in the gear pin engagement groove 421B2, a first gear pin locking portion 421B3 is provided at the clockwise end (left end in FIG. 5), and the counterclockwise end (right side in FIG. 5). A second gear pin locking portion 421B4 is provided at the end).
The gear pin 421A3 of the male gear 421A is engaged with the gear pin engaging groove 421B2. That is, the gear pin 421A3 is provided so as to be movable between the first and second gear pin locking portions 421B3 and 421B4 of the gear pin engaging groove 421B2. Accordingly, the female gear 421B is provided so as to be rotatable relative to the male gear 421A by a predetermined angle at which the gear pin 421A3 can move in the gear pin engaging groove 421B2.

  The first large-diameter transmission gear 421A1 of the first transmission gear 421 is meshed with the worm gear 411, and the rotational driving force of the driving motor 41 is centered on an axis orthogonal to the bottom surface of the housing 10. Convert to The first bottom surface side small diameter transmission gear 421A2 is meshed with the shift drive branch gear 422, and the first top surface side small diameter transmission gear 421B1 is meshed with the roller drive branch gear 423. Thereby, the first transmission gear 421 transmits the rotational driving force from the drive motor 41 to the shift drive branch gear 422 and the roller drive branch gear 423.

In such a first transmission gear 421, when the gear pin 421A3 is in contact with and locked to the first gear pin locking portion 421B3, when the male gear 421A rotates in the clockwise direction, the female gear 421B is also driven. Is transmitted and rotated in the clockwise direction, and a roller 513 described later is rotated in the loading direction for loading the optical disk 1. Further, since the female gear 421B can idle in the clockwise direction when the drive motor 41 is not driven, a roller 513 described later can also idle in the loading direction for loading the optical disc 1.
On the other hand, in a state where the gear pin 421A3 is in contact with and locked to the second gear pin locking portion 421B4, when the male gear 421A rotates counterclockwise, the female gear 421B is also driven to transmit counterclockwise. And a roller 513 described later is rotated in the unloading direction for unloading the optical disk 1. In addition, since the female gear 421B can idle in the counterclockwise direction when the drive motor 41 is not driven, a roller 513 described later can also idle in the unloading direction for unloading the optical disc 1.

  In addition, a gap of a predetermined interval is provided between the first transmission gear 421 and a cover member 43 (described later) provided on the top surface side of the drive transmission gear group 42, and the first transmission gear 421 moves in the vertical direction. It is provided as possible. A gear urging spring 421C (see FIG. 12) is provided in the gap between the first transmission gear 421 and the cover member 43 to urge the first transmission gear 421 toward the bottom surface side.

  The first large-diameter transmission gear 421A1 of the first transmission gear 421 is meshed with the worm gear 411 and converts the rotational driving force of the driving motor 41 into a rotational driving force centered on an axis orthogonal to the bottom surface of the housing 10. To do. The first bottom surface side small diameter transmission gear 421A2 is meshed with the shift drive branch gear 422, and the first top surface side small diameter transmission gear 421B1 is meshed with the roller drive branch gear 423. Thereby, the first transmission gear 421 transmits the rotational driving force from the drive motor 41 to the shift drive branch gear 422 and the roller drive branch gear 423.

  The shift drive branch gear 422 includes a large-diameter shift drive branch gear 422A having a large diameter and a drive branch pinion 422B provided coaxially with the large-diameter shift drive branch gear 422A and integrally provided on the bottom surface side. The large-diameter shift drive branch gear 422A is meshed with the first bottom-surface-side small-diameter transmission gear 421A2 of the first transmission gear 421, and the drive branch pinion 422B is meshed with the cam shift gear 425.

  The roller drive branch gear 423 is meshed with the first top surface side small-diameter transmission gear 421B1 and a loading arm 51 (to be described later) of the carry-in portion 50. Thereby, the rotational driving force transmitted from the first transmission gear 421 is transmitted to the loading arm 51.

  The cam shift gear 425 includes a large-diameter shift gear 425A having a large diameter dimension, and a pinion gear 425B that is provided coaxially with the large-diameter shift gear 425A on the top surface side and has a small diameter dimension. Here, the large-diameter shift gear 425A is provided on the bottom surface side of the first shift cam 71 as a cam member, that is, between the housing body 11 and the first shift cam 71, and the pinion gear 425B is the end surface of the first shift cam 71. Are provided on the forward / backward movement path of a rack 711A, which will be described later. The large-diameter shift gear 425A is meshed with the drive branch pinion 422B of the shift drive branch gear 422. On the other hand, the pinion gear 425B is provided so as to be able to mesh with a first shift cam 71 (to be described later) of the disk clamp unit 70. In an initial state where the optical disc 1 is not inserted, the pinion gear 425B and a rack (to be described later) of the first shift cam 71 are provided. A clearance of a predetermined dimension is provided between 711A.

A cover member 43 is provided on the top surface side of the drive unit 40. The cover member 43 is formed of, for example, synthetic resin, and is fixed to the housing body 11 so as to cover the top surfaces of the drive motor 41 and the drive transmission gear group 42. The cover member 43 is provided with a step portion 431 that is formed in a longitudinal shape in the left-right direction (the direction from the left wall 10B to the right wall 10C). The step portion 431 is provided so as to be able to come into contact with a loading arm 51 which will be described later.
As described above, the gear urging spring 421C is provided between the cover member 43 and the first transmission gear 421, and urges the first transmission gear 421 toward the bottom surface side.

  As shown in FIGS. 1 and 2, the carry-in unit 50 is driven by the driving force supplied from the drive unit 40, and carries the optical disc 1 inserted from the insertion / extraction port 14 into the housing 10. The loading unit 50 includes a loading arm 51, a loading link mechanism 52, a sub loading arm 53, a sub arm link mechanism 54, a link plate 55, a guide mechanism 56, and the like.

The loading arm 51 is formed in a longitudinal shape, and one end thereof is rotatably attached to the vicinity of the insertion / extraction port 14 of the wing portion 12 so that the other end can be advanced and retracted with respect to the center position of the housing 10. Is provided. The loading arm 51 includes a roller 513 capable of holding the optical disc 1 at the tip, and the optical disc 1 is transported along the transport path by the rotational driving of the roller 513.
Then, the loading arm 51 is rotated toward the right wall 10C to a position where the optical disk 1 can be guided according to the diameter of the optical disk 1 being conveyed. That is, for example, when the large-diameter disk 1A is conveyed, the loading arm 51 is rotated to the vicinity of the right wall 10C. On the other hand, when transporting the small-diameter disk 1B, the loading arm 51 extends from the rotation center of the turntable 23 in the front-rear direction (the direction from the front surface 10A to the rear surface 10D). It is rotated to a position where the distance between the center line (center line) and the roller 513 is approximately 4 cm. When the disk processing unit 20 moves to the top surface and the optical disk 1 is clamped on the turntable 23, the loading arm 51 is rotated to the right wall 10C side, and the roller 513 is moved from the periphery of the optical disk 1. Get away.
The loading arm 51 includes a longitudinal loading arm main body 511, a roller driving portion 512 that constitutes a drive transmission portion provided in the loading arm main body 511, and the above-described roller 513. The worm gear 411, the drive transmission gear group 42, and the roller drive unit 512 constitute the drive transmission unit of the present invention.

The loading arm main body 511 is a plate-like member made of, for example, synthetic resin and formed longitudinally along the longitudinal direction of the loading arm 51. A shaft support portion 511 </ b> A is provided at the base end portion of the loading arm main body 511. The loading arm body 511 is pivotally supported by a shaft projecting from the bottom surface of the wing portion 12 toward the top surface so that the loading arm body 511 can rotate about the shaft support portion 511A. It becomes possible to move forward and backward.
In addition, the loading arm body 511 is integrally provided with a stopper piece 511 </ b> C that protrudes toward the bottom surface at the end edge of the long distal end side on the insertion / extraction port 14 side. The stopper piece 511 </ b> C is positioned to face the above-described cover member 43, and abuts against the step portion 431 of the cover member 43 in a state where the loading arm 51 is closest to the insertion / ejection port 14 (initial state). That is, the loading arm 51 is restricted from rotating from the position where the stopper piece 511 </ b> C and the stepped portion 431 come into contact to the insertion / extraction port 14 side.
An arcuate first gear 511 </ b> B having a predetermined diameter around the shaft support 511 </ b> A is integrally provided on the end surface on the proximal end side of the loading arm body 511.
Further, a roller mounting hole (not shown) for mounting the roller 513 is formed at the tip of the loading arm main body 511.
Furthermore, an arm pin 511D that protrudes toward the bottom surface is provided on the proximal end side of the loading arm main body 511. The arm pin 511D abuts on the arm abutting portion 12B of the loading arm urging portion 12A in a state where the loading arm 51 is rotated by a predetermined angle toward the right wall 10C. When the loading arm 51 further rotates toward the right wall 10C, the loading arm 51 is urged counterclockwise by the loading arm urging portion 12A.

  The roller driving unit 512 is provided on the bottom surface side of the loading arm main body 511. The roller driving unit 512 includes a first roller driving gear 512A centering on a shaft that supports the shaft supporting portion 511A of the loading arm body 511, and a second roller driving gear 512B meshed with the first roller driving gear 512A. A third roller drive gear 512C meshed with the second roller drive gear 512B, and a fourth roller drive gear 512D meshed with the third roller drive gear 512C. The first roller drive gear 512 </ b> A is engaged with the roller drive branch gear 423 of the drive unit 40, and the driving force is transmitted from the drive unit 40. The fourth roller drive gear 512D is engaged with the roller 513, and transmits the driving force transmitted from the drive unit 40 via the first to third roller drive gears 512A, 512B, and 512C to the roller 513.

  The first to fourth roller drive gears 512A, 512B, 512C, and 512D are formed to have a thickness that is substantially the same as or slightly smaller than the clearance between the loading arm main body 511 and the wing portion 12. The first to fourth roller drive gears 512A, 512B, 512C, and 512D are set so as not to interfere with the wing portion 12 during the rotation of 51.

  The roller 513 is rotatably attached to the roller attachment hole at the tip of the loading arm body 511. The roller 513 includes a roller gear 513A provided on the bottom surface side of the loading arm main body 511 and a roller main body 513B provided on the top surface side of the loading arm main body 511. The roller gear 513A and the roller body 513B are integrally formed by a shaft that passes through the roller mounting hole of the loading arm body 511.

The roller gear 513A is meshed with the fourth roller drive gear 512D and rotated by the rotational drive of the third roller drive gear 512C.
The roller body 513B is formed in a substantially cylindrical shape with a direction substantially orthogonal to the surface of the loading arm body 511 as an axis. The roller body 513B has a concave portion in which the diameter of the central portion in the axial direction is smaller than the diameter of the top surface and the bottom surface. The peripheral surface of the roller body 513B is formed of an elastic member such as synthetic resin. The roller body 513B is driven to rotate in a state where the peripheral portion of the optical disc 1 is held by the concave portion, thereby moving the optical disc 1 forward and backward along the transport path.

  The loading link mechanism 52 includes a loading link arm 521, a loading slide plate 522, and the like.

  The loading link arm 521 is rotatably provided on the bottom surface of the wing part 12. The loading link arm 521 is formed in a substantially fan shape, and a second gear 521A that is engaged with the first gear 511B of the loading arm main body 511 is formed along the arc of the fan. A loading link pin 521B that protrudes toward the bottom surface of the wing portion 12 is provided on the inner side of the second gear 521A of the loading link arm 521, that is, on the left wall 10B side.

The loading link arm 521 includes an emergency turning piece 521C. The emergency turning piece 521C is inserted into the second emergency pin of the decorative board 10A1 in a state where the loading arm 51 is rotated by a predetermined amount and the arm pin 511D is in contact with the arm contact portion 12B of the loading arm biasing portion 12A. It is provided at a position facing the hole 10A4 and on the right wall 10C side of the rotation center of the loading link arm 521. For example, when the optical disc 1 is forcibly ejected, the emergency turning piece 521C is inserted into the second emergency pin insertion hole 10A4 when the substantially rod-shaped second emergency pin is inserted into the second emergency pin 930 (see FIG. 19). The tip of the abuts. And second emergency pin 930
Is further inserted into the back surface 10D side, the emergency turning piece 521C is pushed into the back surface 10D side, the loading link arm 521 rotates counterclockwise, and the loading arm 51 turns clockwise accordingly. Rotate.

The loading slide plate 522 is formed to be long in the front-rear direction (a direction from the front surface 10 </ b> A to the rear surface 10 </ b> D) of the casing 10 so as to face the step wall 13. Further, on the front surface 10A side of the loading slide plate 522, a first loading link engaging portion 522A that protrudes from the top surface side edge toward the right wall 10C and faces the bottom surface on the wing portion 12 side is formed.
The first loading link engaging portion 522A is formed with a loading engaging groove 522B that is elongated in the left-right direction, and the loading link pin 521B of the loading link arm 521 is engaged with the loading engaging groove 522B. Yes. When the loading link arm 521 is rotated by the rotation of the loading arm 51, the loading link pin 521B moves back and forth in the front-rear direction, so that the loading slide plate 522 moves in the front-rear direction according to the movement of the loading link pin 521B. Move the slide.

  Further, a second loading link engaging portion 522C that protrudes inward of the housing is formed on the back surface 10D side of the loading slide plate 522. A second loading engagement groove 522D is formed in the second loading link engagement portion 522C. The second loading engagement groove 522D is continuous with the slide movement section 522D1 from the back face 10D side on the left wall 10B side toward the front face 10A side of the right wall 10C, and the end part on the back face 10D side of the slide movement section 522D1, And an idle running section 522D2 extending toward the left wall 10B side.

  Further, the second loading link engaging portion 522C is provided with a loading guide pin that protrudes toward the bottom surface side of the housing body 11 and is engaged with the link guide hole 112 of the base plate 111.

  Further, a loading guide groove 522E extending in the front-rear direction is formed at a substantially central position in the front-rear direction of the loading slide plate 522, and guides the slide movement direction of the loading slide plate 522.

The sub-loading arm 53 is formed in a longitudinal shape, and a base end portion is rotatably attached to the vicinity of the insertion / extraction port 14 on the front surface 10A side of the left wall 10B. As a result, the tip of the sub-loading arm 53 can move forward and backward toward the center position of the housing 10.
As shown in FIGS. 7 and 8, the sub-loading arm 53 includes a sliding wall 531 that is substantially perpendicular to the conveyance surface of the optical disc 1 and a bottom surface side of the sliding wall 531 from the base end portion to the tip end portion. A bottom surface side guide portion 532 that is continuously formed and extends in a direction away from the sliding wall 531, and a top surface side guide portion 533 that is continuously formed on the top surface side of the sliding wall 531 and faces the bottom surface side guide portion 532. Are formed in a substantially U-shaped cross section.
A grip sheet 531A is provided on the sliding wall 531 from the front end portion of the sub-loading arm 53 to a substantially central portion, for example. The grip sheet 531A is formed of, for example, a synthetic resin and has a predetermined frictional force. Then, when the roller 513 is driven to rotate with the grip sheet 531A in contact with the peripheral edge of the optical disc 1, the optical disc 1 rotates on the grip sheet 531A in a direction corresponding to the rotation direction of the roller 513 and is substantially rolled. Thus, the sheet is conveyed in a predetermined conveyance direction.

Further, the bottom-side guide portion 532 and the top-side guide portion 533 of the sub-loading arm 53 are formed with wide portions 532A and 533A that extend in a direction in which a substantially central portion in the longitudinal direction is separated from the sliding wall 531 to be wide. Has been. In addition, inclined sides 532B and 533B that are inclined toward the sliding wall 531 from the extending ends of the wide portions 532A and 533A are formed on the front end side in the longitudinal direction of the bottom surface side guide portion 532 and the top surface side guide portion 533. As shown in FIG. 1, it is formed in a substantially triangular shape with the edge on the sliding wall 531 side as the base. The inclined sides 532B and 533B are loaded in a position where the large-diameter disk 1A can process information, and overlap with the large-diameter disk 1A in the vertical direction in a playable state where the sub-loading arm 53 is rotated to the leftmost wall 10B side. It is formed in a shape that does not become.
Moreover, the bottom surface side guide part 532 is formed in the taper shape which inclines toward the top surface side from a bottom surface side, as it goes to the sliding wall 531 from the extension direction front end side. Furthermore, the extending direction front end edge of the top surface side guide portion 533 is formed in a tapered shape that inclines from the top surface side toward the bottom surface side toward the sliding wall 531 from the extending direction front end side. As a result, the optical disk 1 inserted from the insertion / ejection port 14 can be guided to the sliding wall 531 along the tapered surface.

  A sub arm guide pin 534 is formed on the left wall 10B side of the base end portion of the sub loading arm 53 so as to protrude toward the bottom surface. The sub arm guide pin 534 moves to the front surface 10A side when the sub loading arm 53 rotates to the left wall 10B side, and moves to the back surface 10D side when the sub loading arm 53 rotates to the right wall 10C side.

  Similar to the loading arm 51, the sub-loading arm 53 is rotated to the left wall 10B side to a position where the optical disc 1 can be guided according to the diameter of the optical disc 1 being conveyed. For example, when transporting the large-diameter disk 1A, the sub-loading arm 53 is rotated to the vicinity of the left wall 10B. On the other hand, when transporting the small-diameter disk 1B, the sub-loading arm 53 is positioned at a distance of about 4 cm from the center line (center line) extending forward and backward from the rotation center of the turntable 23 to the tip of the sub-loading arm 53. Is rotated to the left wall 10B side. In the playable state, the sub-loading arm 53 is rotated to the vicinity of the left wall 10B side and is separated from the periphery of the optical disc 1.

  The sub arm link mechanism 54 includes a sub arm slide plate 541.

The sub arm slide plate 541 is formed to be long in the front-rear direction so as to face the left wall 10B. A sub arm link engaging portion 541A extending from the bottom side edge toward the rotation axis of the sub loading arm 53 is formed on the front 10A side of the sub arm slide plate 541. The sub arm link engaging portion 541A is formed with a sub arm link groove 541B that is long in the left-right direction, and a sub arm guide pin 534 is engaged therewith.
In addition, a guide piece 541C that protrudes toward the right wall 10C and is located on the top surface side of the base plate 111 is provided at a substantially central position of the sub arm slide plate 541. The guide piece 541C is provided with a pair of link pins 541D that engage with the link guide hole 113 of the base plate 111 on the front surface 10A side and the back surface 10D side, respectively, to guide the movement of the sub arm slide plate 541 in the front-rear direction. . Each of the link pins 541D is fitted with a ring-shaped sliding member made of synthetic resin. Then, when the sub arm slide plate 541 moves in the front-rear direction, the sub-arm guide pin 534 moves in the front-rear direction, and the sub-loading arm 53 rotates.
Further, a spring is stretched over the link pin 541D disposed on the back surface 10D side and a spring hook portion (not shown) provided on the back surface side of the base plate 111, and the sub arm slide plate 541 is attached to the back surface 10D side. It is energized.

Further, a plate link engaging portion 541E that protrudes inward of the housing 10 is formed on the back surface 10D side of the sub arm slide plate 541. The plate link engaging portion 541E is formed with a plate link pin 541F that protrudes toward the bottom surface. The plate link pin 541F is engaged with a link plate 55 described later.
Further, on the top surface side of the sub arm slide plate 541, a reverse pin 541G that protrudes to the top surface side is formed on the front surface 10A side of the link pin 541D.

  The link plate 55 is a plate-like member that is provided on the back surface 10D side of the housing 10 and is formed in a longitudinal shape in the left-right direction. Further, the link plate 55 is provided so as to be movable in the left-right direction in accordance with the operation of the loading arm 51 and the sub-loading arm 53. In the initial state where the optical disc 1 is not inserted, the link plate 55 moves most to the right wall 10C side. Placed in the state. The link plate 55 includes a slide link pin 551, a slide link groove 552, an ejection restriction window 553, a select piece 554, a slide guide groove 555, and a cam control pin 556.

  The slide link pin 551 is provided in the vicinity of the end portion on the right wall 10C side of the link plate 55 so as to protrude to the top surface side. The slide link pin 551 is engaged with the second loading engagement groove 522D of the loading slide plate 522. When the loading slide plate 522 moves in the front-rear direction due to the rotation of the loading arm 51, the slide link pin 551 also moves along the second loading engagement groove 522D. Thereby, the link plate 55 moves in the left-right direction.

The slide link groove 552 is formed in the vicinity of the end portion of the link plate 55 on the left wall 10B side.
As shown in FIG. 9, the slide link groove 552 extends from the asynchronous engagement groove 552A formed on the left wall 10B side and the asynchronous engagement groove 552A so as to incline toward the front 10A side and the right wall 10C side. And a synchronous engagement groove 552B. A plate link pin 541F of the sub arm slide plate 541 is engaged with the slide link groove 552.
The asynchronous engagement groove 552A includes a back side restriction portion 552A1 formed in the left-right direction on the back surface 10D side, a loading restriction portion 552A2 extending from the right wall 10C side end of the back side restriction portion 552A1 to the front surface 10A side, and a loading restriction. A left wall side restriction portion 552A3 that extends from the left wall 10B side end of the back surface side restriction portion 552A1 to the front surface 10A side facing the portion 552A2, and a front surface 10A of the left wall side restriction portion 552A3 that faces the back surface side restriction portion 552A1. A sub-loading restricting portion 552A4 extending from the side end portion toward the right wall 10C is formed in a substantially rectangular shape. The clearance dimension between the back side regulation part 552A1 and the sub-loading regulation part 552A4 and the clearance dimension between the left wall side regulation part 552A3 and the loading regulation part 552A2 are each formed to be larger than the pin diameter of the plate link pin 541F. ing. In the initial state, the plate link pin 541F is engaged with the left wall 10B side on the back surface 10D side of the asynchronous engagement groove 552A, that is, in the vicinity of the intersection of the back surface side restricting portion 552A1 and the left wall side restricting portion 552A3. .
The synchronous engagement groove 552B is a longitudinal groove extending from the intersection of the loading restriction portion 552A2 and the subloading restriction portion 552A4 of the asynchronous engagement groove 552A to the front surface 10A side and to the right wall 10C side. The synchronous engagement groove 552B has a width dimension substantially the same as or slightly larger than the pin diameter of the plate link pin 541F. This synchronous engagement groove 552B is engaged with the plate link pin 541F in a state where the small-diameter disk 1B is loaded into a position where the small-diameter disk 1B can be held by the turntable 23 and in a clampable state. Note that the timing at which the plate link pin 541F is engaged with the synchronous engagement groove 552B is only required to be engaged in a state where the small-diameter disk 1B is conveyed in a clampable state. The plate link pin 541F may be configured to be engaged with the synchronous engagement groove 552B.

The slide link groove 552 is movable independently of the loading arm 51 and the subloading arm 53 without the plate link pin 541F being engaged with the asynchronous engagement groove 552A.
That is, as described above, in the initial state, the plate link pin 541F is engaged in the vicinity of the intersection of the back side restriction portion 552A1 and the left wall restriction portion 552A3 of the asynchronous engagement groove 552A of the slide link groove 552. Yes.
In this state, for example, when the small-diameter disk 1B is inserted from the left wall 10B side, the sub-loading arm 53 with which the small-diameter disk 1B is in contact rotates in the counterclockwise direction. At this time, the plate link pin 541F moves to the front surface 10A side by the rotation of the sub loading arm 53, but the loading arm 51 is not synchronized because the link plate 55 is not displaced. When the small-diameter disk 1B is further inserted, the plate link pin 541F comes into contact with the subloading restricting portion 552A4, and the rotation of the subloading arm 53 is restricted. At this time, the sub-loading arm 53 has the largest diameter portion of the small-diameter disk 1B between the roller 513 of the loading arm 51 and the sliding wall 531 in a state where the small-diameter disk 1B is inserted from the approximate center of the insertion / extraction port 14. Rotation is restricted at a position where can be held. That is, the rotation of the sub-loading arm 53 is restricted at a position where the distance from the center line of the disk device 100 to the tip of the sliding wall 531 of the sub-loading arm 53 is substantially the same as the radial dimension of the small-diameter disk 1B. Is done.
As a result, the small-diameter disk 1B is guided from the left wall 10B side to the right wall 10C side, and accordingly, the loading arm 51 is pushed by the small-diameter disk 1B and rotated clockwise. When the small-diameter disk 1B is guided to the substantially central portion, the link plate 55 is also moved to the left wall 10B side by the rotation of the loading arm 51, and the plate link pin 541F is engaged with the synchronous engagement groove 552B. Therefore, the loading arm 51 and the sub-loading arm 53 can operate in synchronization.

On the other hand, when the small-diameter disk 1B is inserted from the right wall 10C side, the loading arm 51 rotates in the clockwise direction. At this time, the link plate 55 moves to the left wall 10B side by the rotation of the loading arm 51, but the left wall side restricting portion 552A3 and the loading restricting portion 552A2 of the asynchronous engagement groove 552A are smaller than the pin diameter of the plate link pin 541F. Since it is formed sufficiently large, the plate link pin 541F is not pushed out, and the sub-loading arm 53 is not synchronized and does not rotate. When the small-diameter disk 1B is further inserted, the link plate 55 moves, the plate link pin 541F comes into contact with the loading restricting portion 552A2, and the rotation of the loading arm 51 is restricted. At this time, the loading arm 51 has a maximum diameter portion of the small-diameter disk 1B between the roller 513 and the sliding wall 531 of the sub-loading arm 53 in a state where the small-diameter disk 1B is inserted from substantially the center of the insertion / extraction port 14. Rotation is restricted at a position where can be held.
As a result, the small-diameter disk 1B is guided from the right wall 10C side to the left wall 10B side, and accordingly, the sub-loading arm 53 is pushed by the small-diameter disk 1B and rotated counterclockwise. When the small-diameter disk 1B is guided to the substantially central part, the plate link pin 541F is moved to the front surface 10A side by the rotation of the sub-loading arm 53 and is engaged with the synchronous engagement groove 552B. Therefore, the loading arm 51 and the sub-loading arm 53 can operate in synchronization.
When the small-diameter disk 1B is inserted from the substantially central portion of the insertion / extraction port 14, the loading arm 51 and the sub-loading arm 53 are rotated by being pushed out to the periphery of the small-diameter disk 1B. Therefore, the plate link pin 541F moves to the front surface 10A side, and the link plate 55 also moves to the left wall 10B side. Accordingly, the plate link pin 541F moves in a substantially straight line from the intersection of the back side restriction 552A1 and the left wall restriction 552A3 toward the intersection of the loading restriction 552A2 and the subloading restriction 552A4. Then, it is engaged with the synchronous engagement groove 552B without being restricted by the loading restriction part 552A2 or the subloading restriction part 552A4.

  The eject restricting window 553 is a window formed substantially at the center of the link plate 55. The eject restricting window 553 restricts movement of a first eject arm 61 described later of the carry-out unit 60. The eject restriction window 553 includes a small diameter restriction engagement portion 553A, a large diameter restriction engagement portion 553B, a small diameter separation engagement portion 553C, and a large diameter separation engagement portion 553D. Further, an eject pin 611 provided on the first eject arm 61 is inserted into the eject regulating window 553. The small-diameter restriction engagement portion 553A, the large-diameter restriction engagement portion 553B, the small-diameter separation engagement portion 553C, and the large-diameter separation engagement portion 553D can be engaged / disengaged with each other as the eject pin 611 moves. As the link plate 55 slides in the left-right direction in conjunction with the loading arm 51 and the sub-loading arm 53, the engagement / disengagement state with the eject pin 611 changes.

  The small diameter restricting / engaging portion 553A is provided on the front face 10A side of the eject restricting window 553 and on the left wall 10B side. When the eject pin 611 is engaged with the small-diameter restricting / engaging portion 553A, the small-diameter disk 1B can be clamped and held by the turntable 23.

  The large-diameter restriction engagement portion 553B is provided on the back surface 10D side of the ejection restriction window 553 and on the left wall 10B side. Specifically, the large-diameter restricting / engaging portion 553B is provided on the distal end side of the large-diameter corresponding groove 553E extending from the right side of the small-diameter restricting / engaging portion 553A to the back surface 10D side. When the eject pin 611 is engaged with the large-diameter regulating engagement portion 553B, the large-diameter disk 1A is in a clamped state that can be held by the turntable 23.

  The small diameter separation engagement portion 553C is formed slightly on the back surface 10D side of the small diameter restriction engagement portion 553A on the right wall 10C side. When the eject pin 611 is engaged with the small-diameter separation / engagement portion 553C, the small-diameter disc 1B is held by the turntable 23 and the information processing unit 24 is ready to perform information processing.

  The large-diameter separation engagement portion 553D is formed slightly on the back surface 10D side on the right wall 10C side of the large-diameter regulation engagement portion 553B. When the eject pin 611 is engaged with the large-diameter separation engagement portion 553D, the large-diameter disc 1A is held by the turntable 23, and the information processing unit 24 is ready to perform information processing.

  The select piece 554 is formed to protrude toward the back surface 10D side on the right wall 10C side on the back surface 10D side of the link plate 55.

  The slide guide groove 555 is provided at a substantially central portion of the link plate 55 and is formed in a longitudinal shape in the left-right direction. The slide guide groove 555 is provided with a link plate guide pin 118 that protrudes from the base plate 111 toward the bottom surface side, and is engaged through a synthetic resin ring-shaped sliding member to move the link plate 55 in the left-right direction. To guide you.

  The cam control pin 556 is formed so as to protrude toward the first shift cam 71 of the disc clamp portion 70 on the front wall 10 </ b> A side of the link plate 55 on the right wall 10 </ b> C side.

  Further, switch pieces 557 and 558 that are bent toward the bottom surface of the housing 10 are formed on the edge of the link plate 55 on the back surface 10D side. The switch pieces 557 and 558 switch on / off states of the first switch SW1 and the second switch SW2 provided in the control circuit unit disposed on the bottom surface of the housing 10 by the right and left movement of the link plate 55.

  Here, the first switch SW1 and the second switch SW2 are provided on the movement path of the back and forth movement of the switch pieces 557 and 558 on the back surface 10D side of the control circuit unit. The first switch SW1 is provided near the connector 15 on the left wall 10B side, and the second switch SW2 is disposed on the right wall 10C side with respect to the first switch SW1.

  The first switch SW1 and the second switch SW2 have a switch body and a movable piece that protrudes from the switch body to the back surface 10D side and is movable forward and backward with respect to the switch body. The first switch SW1 and the second switch SW2 are in the off state when the movable piece protrudes, and in this off state, the “H (High)” level is set based on the reference voltage supplied from the control circuit unit. Is detected by the control circuit unit. On the other hand, when the switch pieces 557 and 558 come into contact with the movable piece due to the movement of the link plate 55, the movable piece moves into the switch body and is turned on. In this turned-on state, the reference voltage supplied from the control circuit unit is set to the reference voltage. Based on this, it is detected by the control circuit unit as the “L (Low)” level.

  The first switch SW1 and the second switch SW2 are both set to an off state in which the movable piece protrudes toward the back surface 10D in the initial state where the optical disc 1 is not inserted. When the optical disk 1 is inserted and the link plate 55 moves to the left wall 10B side with the rotation of the loading arm 51 and the sub-loading arm 53, the second switch SW2 is first turned on (L level). Thereafter, when the link plate 55 further moves to the left side, the first switch SW1 is turned on (L level).

  The guide mechanism 56 is disposed on the top surface side of the base plate 111 and guides the carry-in of the optical disc 1 inserted from the insertion / ejection port 14. The guide mechanism 56 includes a guide plate 561 and a guide arm 562.

The guide plate 561 is formed in a substantially triangular plate shape. Specifically, the guide plate is formed in a substantially triangular shape having a bottom extending substantially in the left-right direction and a vertex disposed on the front side 10A from the bottom and facing the bottom.
In the vicinity of the apex located on the right wall 10C side of the bottom side of the guide plate 561, a guide guide pin 561A that protrudes toward the bottom surface is formed so as to be engaged with the guide arm guide groove 115 of the base plate 111.
In addition, a spring hook pin 561B that protrudes toward the bottom surface is formed in the vicinity of the apex located on the left wall 10B side of the bottom side of the guide plate 561, and is inserted through the guide arm guide window 116 of the base plate 111.
Furthermore, a hole is provided at the apex of the front surface 10A facing the bottom side of the guide plate 561, and a guide arm 562 is rotatably connected.

The guide arm 562 is formed in a longitudinal plate shape. A guide rotation shaft 562A is formed at one end of the guide arm 562 in the longitudinal direction so as to protrude toward the base plate 111 side. The guide rotation shaft 562A is rotatably supported on the left wall 10B side of the base plate 111.
In addition, a guide connection shaft 562B that protrudes toward the guide plate 561 is provided on the one end side of the guide arm 562 at a position that is on the other longitudinal end side with respect to the guide rotation shaft 562A. The guide connecting shaft 562B is rotatably inserted into a hole provided at the apex of the guide plate 561 on the front surface 10A side.
Further, a disc guide portion 562C that protrudes toward the top surface is provided on the other end side of the guide arm 562. The disc guide portion 562C includes a substantially conical disc receiving portion 562D and a flange portion 562E provided on the bottom surface side of the disc receiving portion 562D. The disc guide portion 562C guides the periphery of the optical disc 1 to the disc receiving portion 562D by the flange portion 562E, and maintains the posture of the optical disc 1 with the periphery of the optical disc 1 being in contact with the disc receiving portion 562D. Guide the transport.

  Further, a return contact portion 562G is provided in the vicinity of the guide rotation shaft 562A of the guide arm 562. The return contact portion 562G is arranged so that a slight gap is opened on the back surface 10D side of the reverse pin 541G in a state where the guide arm 562 is rotated to the leftmost wall 10B side. When the sub arm slide plate 541 moves to the back surface 10D side, the return contact portion 562G moves to the back surface 10D side following the movement of the reverse pin 541G, and rotates the guide arm 562 in the clockwise direction.

  A guide spring 563 is stretched between a spring hook pin 561B of the guide plate 561 and a spring hook portion 119 provided on the left wall 10B side of the base plate 111. That is, the guide spring 563 is provided in a state in which the base plate 111 and the guide plate 561 are bridged and the guide plate 561 is urged in the direction approaching the insertion / extraction port 14.

  In such a guide mechanism 56, the biasing direction of the guide arm 562 changes according to the positions of the spring hook pin 561B, the guide rotation shaft 562A, and the guide connection shaft 562B.

Specifically, a force in the direction from the spring hooking pin 561B toward the guide connection shaft 562B (spring corresponding biasing direction) is always generated on the guide connection shaft 562B by the bias of the guide plate 561 by the guide spring 563. . When the guide connecting shaft 562B is positioned on the right wall 10C side (right side position state) with respect to the line segment (reference line segment) connecting the spring hooking pin 561B and the guide rotation shaft 562A (right side position state), the guide arm 562 is rotated. The angle formed between the moving direction of the guide connecting shaft 562B (moving direction during rotation) and the biasing direction corresponding to the spring is an acute angle. For this reason, in the right-side position state, at least a part of the force generated in the guide coupling shaft 562B in the spring corresponding biasing direction is converted into a force in the moving direction at the time of rotation, and the guide arm 562 is rotated in the clockwise direction. Receive a biasing force.
Furthermore, as the guide arm 562 rotates counterclockwise, the guide connecting shaft 562B moves and moves from the right-side position state to the state positioned on the reference line segment (line segment upper position state) as the guide plate 561 is moved. Moves to the back surface 10D, the spring force of the guide spring 563 increases, and the force in the spring-corresponding biasing direction also increases. However, the angle formed by the spring-corresponding biasing direction and the moving direction during rotation approaches from an acute angle to a right angle. For this reason, as the position state on the line segment is approached from the right side position state, the ratio of the force generated in the guide connection shaft 562B in the direction corresponding to the spring corresponding to the spring is reduced to the force in the moving direction during rotation, The urging force in the clockwise direction received by the guide arm 562 is reduced. That is, the urging force in the direction of ejecting the optical disk 1 received by the guide arm 562 decreases as the optical disk 1 is inserted.

  Further, in the position on the line segment, the guide plate 561 moves to the position closest to the back surface 10D, the spring force of the guide spring 563 is maximized, and the force in the spring corresponding urging direction is also maximized. However, the angle formed by the spring-corresponding urging direction and the moving direction during rotation is a right angle. For this reason, in the position on the line segment, the force in the spring urging direction is not converted into the force in the moving direction at the time of rotation, and the urging force in the clockwise direction or the counterclockwise direction received by the guide arm 562 is received. Becomes 0. Therefore, the guide arm 562 does not rotate.

  Further, in a state where the guide connecting shaft 562B is located on the left wall 10B side from the reference line segment (left side position state), the angle formed by the rotational movement direction and the spring corresponding biasing direction is an acute angle. For this reason, in the left position state, at least a part of the force in the spring corresponding biasing direction is converted into a force in the moving direction during rotation, and the guide arm 562 receives a biasing force in the counterclockwise direction.

Next, the configuration of the carry-out unit 60 will be described. As shown in FIGS. 1, 2, and 3, the carry-out unit 60 includes a first eject arm 61 and a second eject arm 62. The first and second eject arms 61 and 62 are rotatably provided so as to intersect with each other on the back surface 10D side of the housing 10. That is, the first eject arm 61 is formed longitudinally from the right wall 10C side of the back surface 10D toward the left wall 10B side of the front surface 10A, and the second eject arm 62 is fronted from the left wall 10B side of the back surface 10D. It is formed longitudinally toward the right wall 10C side of 10A.
Further, the rotation center shafts 61A, 62A of the first and second eject arms 61, 62 have a center line passing through the center of the turntable 23, the right wall 10C, the center line passing through the center of the turntable 23 by a predetermined dimension from the back surface 10D. It is provided between the line and the left wall 10B. With this configuration, the rotation center shafts 61A and 62A can be attached at positions that do not interfere with the first shift cam 71 and the connector portion 15, and the first and second eject arms 61 and 62 are inserted when the large-diameter disk 1A is inserted. It becomes possible to rotate the front-end | tip part to back 10D vicinity.

  As described above, the first eject arm 61 includes the eject pin 611 that projects to the bottom surface side. The eject pin 611 engages with an arm link hole 621 formed at a substantially central position of the second eject arm 62, the above-described eject restriction window 553 of the link plate 55, and an eject arm restriction groove 117 formed in the base plate 111. Has been. The eject pin 611 rotates along the eject arm restriction groove 117, and in the middle of the rotation, the small diameter restriction engagement portion 553A, the large diameter restriction engagement portion 553B, the small diameter separation engagement portion 553C of the ejection restriction window 553, The movement is restricted by being engaged with the large-diameter separation engagement portion 553D. Further, since the eject pin 611 is inserted through the arm link hole 621, the second eject arm 62 rotates in conjunction with the first eject arm 61.

  In addition, a first disc contact portion 612 that can contact the optical disc 1 is formed at the distal end portion of the first eject arm 61 on the left wall 10B side. Further, a cam push pin 613 protruding toward the first shift cam 71 is provided at the base end portion of the first eject arm 61 on the right wall 10 </ b> C side. When the first eject arm 61 rotates, the cam push pin 613 pushes and moves the first shift cam 71 toward the front surface 10A according to the rotation amount.

  A spring engaging protrusion 614 is formed in the vicinity of the rotation center axis 61 </ b> A of the first eject arm 61. The first eject arm 61 is attached with a spring between the spring engaging projection 614 and a spring hooking portion (not shown) provided on the back surface 10D side of the base plate 111, so that the first eject arm 61 is always in the counterclockwise direction, that is, the first disc contact. The contact portion 612 is biased in a direction to rotate toward the front surface 10A.

As described above, the second eject arm 62 is formed with the arm link hole 621 at a substantially central position in the longitudinal direction, and the eject pin 611 is inserted therethrough.
Further, a second disc contact portion 622 that can contact the optical disc 1 is provided at the tip of the second eject arm 62. The second disk contact portion 622 is always disposed at a position that is substantially symmetrical with respect to the center line with respect to the first disk contact portion 612. That is, when the first and second eject arms 61 and 62 are rotated, the first disk contact portion 612 and the second disk contact portion 622 are rotated so as to be substantially line symmetrical with respect to the center line. . The first and second disc contact portions 612 and 622 of the first and second eject arms 61 and 62, the roller 513 of the loading arm 51 and the sliding wall 531 of the sub-loading arm 53, and the guide arm 562. The peripheral edge of the optical disc 1 (1A, 1B) is held and conveyed by the disc guide portion 562C.

  Next, the configuration of the disc clamp unit 70 will be described. As shown in FIGS. 1, 3, 10, and 11, the disk clamp unit 70 includes a first shift cam 71 and a second shift cam 72 provided on the back surface 10 </ b> D side of the disk processing unit 20.

The first shift cam 71 is formed longitudinally in the front-rear direction along the stepped wall portion 13 of the housing 10. In the initial state, the first shift cam 71 is arranged in a state of being moved to the rearmost face 10D side, and is pushed out to the front face 10A side by the cam push pin 613 of the first eject arm 61 as described above.
Specifically, the first shift cam 71 includes a cam main body 711, a slide plate 712, a select arm 713, and the like.
The cam main body 711 is a longitudinal member disposed on the front surface 10 </ b> A side of the first shift cam 71. A rack 711A is formed on a side surface facing the left wall 10B on the front surface 10A side of the cam main body 711. The rack 711A is provided to be able to engage with a pinion gear 425B of the cam shift gear 425. Further, as described above, in the initial state, a clearance having a predetermined dimension is provided between the rack 711A and the pinion gear 425B. Then, the first shift cam 71 is moved to the front surface 10A side due to the loading of the optical disc 1, so that the clearance is reduced. And the pinion gear 425B are engaged.

Further, as shown in FIG. 10, a clamp elevating groove 714 is formed on the back surface 10D side of the rack 711A on the surface facing the left wall 10B of the cam main body 711. The clamp elevating groove 714 is engaged with a clamp elevating pin 21C projecting from the pedestal 21 toward the right wall 10C, and the clamp elevating pin 21C moves as the first shift cam 71 advances and retreats. The pedestal 21 moves up and down. And this clamp raising / lowering groove | channel 714 is provided with the retracting part 714A, the standby part 714B, the clamp part 714C, and the performance possible part 714D, as shown in FIG. 11, and these grooves are formed continuously. ing.
The retracting portion 714A is formed to extend in the front-rear direction at a height position closest to the bottom surface of the housing 10 on the front surface 10A side of the clamp lifting groove 714.
The standby unit 714B is formed on the back surface 10D side of the retracting unit 714A at substantially the same height as the height position at which the disc processing unit 20 can process the optical disc 1. In the standby unit 714B, the position of the center hole of the optical disc 1 and the turntable 23 are corrected, the center hole of the optical disc 1 is inserted into the disc engaging portion 23A of the turntable 23, and the optical disc 1 is inserted into the turntable 23. Is positioned.
The clamp part 714C is a mountain-shaped groove protruding to the top surface side. When the clamp raising / lowering pin 21C is engaged with the clamp portion 714C, the pedestal portion 21 is moved to the top surface side, and the turntable 23 is brought into contact with or close to a clamp member (not shown) provided on the top surface. At this time, the optical disc 1 is pressed against the turntable 23. As a result, the optical disc 1 is sandwiched between the clamp member and the turntable 23, and the center hole of the optical disc 1 is engaged with the disc engaging portion 23A of the turntable 23. Further, the claw member is engaged with the center hole, and the optical disk 1 is chucked on the turntable 23.
The playable portion 714D is formed on the back surface 10D side of the clamp portion 714C. When the clamp raising / lowering pin 21C is engaged with the playable portion 714D, the information processing portion 24 enters a playable state in which information on the optical disc 1 is processed.

  Further, on the surface of the cam body 711 facing the top surface on the back surface 10D side, a groove-shaped spring installation portion 711C is provided.

  Furthermore, a switch contact portion 711D that protrudes toward the left wall 10B is provided at the end of the back surface 10D of the cam body 711.

  As shown in FIG. 10, the slide plate 712 is provided on the back surface 10D side of the cam main body 711 so as to be slidable in the front-rear direction. A concave groove-like spring installation portion 712A is provided on the front surface 10A side of the slide plate 712, and a biasing spring 715 is provided between the slide plate 712 and the spring installation portion 711C of the cam body portion 711. Thereby, the slide plate 712 is urged | biased by the back surface 10D side.

  A cam groove 716 is formed on the top surface side of the slide plate 712. The cam groove 716 includes a standby groove 716A, a small diameter disk cam groove 716B, and a large diameter disk cam groove 716C. The standby groove 716A is a groove formed on the front surface 10A side of the cam groove 716 and extending in the left-right direction. A cam control pin 556 of the link plate 55 is inserted into the cam groove 716.

  The small-diameter disk cam groove 716B is a groove formed continuously from the standby groove 716A and formed from the right wall 10C side to the back surface 10D side of the standby groove 716A. The small-diameter disk cam groove 716B includes a small-diameter disk clamp starting portion 716B1, a small-diameter disk clamp lifting / lowering section 716B2, a small-diameter disk holding section 716B3, and a small-diameter disk chucking section 716B4.

  The small-diameter disk clamp start portion 716B1 is a groove portion to which the cam control pin 556 is engaged when the small-diameter disk 1B is loaded into a position where the small-diameter disk 1B can be held by the turntable 23 (clampable state). From this state, when the first shift cam 71 is moved to the front surface 10A side by the driving force of the driving unit 40, the cam control pin 556 is moved from the small-diameter disk clamp starting portion 716B1 to the small-diameter disk clamp lifting / lowering portion 716B2. The small-diameter disk clamp start portion 716B1 is formed such that the groove width dimension on the standby groove 716A side is larger than the pin diameter of the cam control pin 556, and the groove width dimension increases toward the small-diameter disk clamp lift section 716B2. It is formed in a substantially tapered shape that becomes smaller and has substantially the same width as the pin diameter of the cam control pin 556.

  The small-diameter disk clamp elevating part 716B2 is continuous with the small-diameter disk clamp start part 716B1 and has a groove width dimension that is substantially the same as or slightly larger than the pin diameter of the cam control pin 556. The clamp lifting / lowering portion 716B2 for the small-diameter disk is a section where the clamp lifting / lowering pin 21C moves from the retracting portion 714A of the clamp lifting / lowering groove 714 to the front 10A side end of the standby portion 714B when the small-diameter disk 1B is inserted. It is a groove into which the control pin 556 is engaged, and is formed in a longitudinal shape in substantially the same direction as the longitudinal direction of the first shift cam 71. In a state where the cam control pin 556 is engaged with the small-diameter disk clamp raising / lowering portion 716B2, the small-diameter disk 1B is not held by the turntable 23.

  The small-diameter disk holding portion 716B3 is a groove that extends from the rear surface 10D side end of the small-diameter disk clamp lifting / lowering portion 716B2 toward the left wall 10B side of the rear surface 10D. The small-diameter disk holding portion 716B3 is a groove in which the cam control pin 556 is engaged in a section where the clamp lifting pin 21C moves in the standby portion 714B of the clamp lifting groove 714 when the small-diameter disk 1B is inserted. . That is, while the cam control pin 556 moves in the small-diameter disk holding portion 716B3, the center hole of the small-diameter disk 1B is positioned on the turntable 23, and the link plate 55 moves to the left wall 10B side to load the loading arm 51, The sub-loading arm 53 and the first and second eject arms 61 and 62 move toward and away from the periphery of the small-diameter disk 1B. Therefore, in a state where the cam control pin 556 is positioned at the rear surface 10D side end of the small-diameter disk holding portion 716B3, the small-diameter disk 1B is positioned on the turntable 23, and the arms 51, 53, 61, 62 are positioned on the small-diameter disk 1B. Separated from the periphery.

  The small-diameter disk chucking portion 716B4 is a groove portion extending from the rear surface 10D side end of the small-diameter disk holding portion 716B3 toward the rear surface 10D side. This small diameter disc chucking portion 716B4 is a section where the clamp raising / lowering pin 21C moves the clamp portion 714C of the clamp raising / lowering groove 714 and the playable portion 714D when the small diameter disc 1B is inserted, and the cam control pin 556 is engaged. The groove to be joined. In a state where the cam control pin 556 is engaged with the small-diameter disk chucking portion 716B4, the link plate 55 is moved to the leftmost wall 10B, that is, each arm 51, 53, 61, 62 is a small-diameter disk. It is maintained in a state separated from the peripheral edge of 1B.

  The large-diameter disk cam groove 716C is formed continuously from the standby groove 716A and is formed from the right wall 10C side to the back surface 10D side of the standby groove 716A. The large-diameter disk cam groove 716C includes a large-diameter disk clamp start section 716C1, a large-diameter disk clamp lifting section 716C2, a large-diameter disk holding section 716C3, and a large-diameter disk chucking section 716C4. I have.

  The large-diameter disc clamp start portion 716C1 is a groove portion to which the cam control pin 556 is engaged when the large-diameter disc 1A is carried into a position where the large-diameter disc 1A can be held by the turntable 23 (clampable state). From this state, when the first shift cam 71 is moved to the front surface 10A side by the driving force of the drive unit 40, the cam control pin 556 is moved from the large-diameter disk clamp starting portion 716C1 to the large-diameter disk clamp lifting / lowering portion 716C2. The large-diameter disk clamp start portion 716C1 has a groove width dimension on the standby groove 716A side larger than the pin diameter of the cam control pin 556, like the small-diameter disk clamp start portion 716B1. The groove width dimension is formed in a taper shape that is substantially the same width as the pin diameter of the cam control pin 556 as it goes toward the clamp lifting / lowering portion 716C2.

  The large-diameter disk clamp lifting / lowering portion 716C2 is continuous with the large-diameter disk clamp start portion 716C1 and has a groove width dimension substantially the same as or slightly larger than the pin diameter of the cam control pin 556. Yes. This large-diameter disk clamp elevating part 716C2 is a section where the clamp elevating pin 21C moves from the retracting part 714A of the clamp elevating groove 714 to the front 10A side end of the standby part 714B when the large-diameter disk 1A is inserted. The groove is engaged with the cam control pin 556, and is formed in a longitudinal shape in substantially the same direction as the longitudinal direction of the first shift cam 71. In a state in which the cam control pin 556 is engaged with the large-diameter disk clamp lifting unit 716C2, the large-diameter disk 1A is not held by the turntable 23.

  The large-diameter disk holding portion 716C3 is a groove that extends from the end portion on the back surface 10D side of the large-diameter disk clamp lifting portion 716C2 toward the left wall 10B side of the back surface 10D. The large-diameter disk holding portion 716C3 is a groove in which the cam control pin 556 is engaged in a section where the clamp lifting pin 21C moves in the standby portion 714B of the clamp lifting groove 714 when the large-diameter disk 1A is inserted. It is. That is, while the cam control pin 556 moves in the large-diameter disk holding portion 716C3, the center hole of the large-diameter disk 1A is positioned on the turntable 23, and the link plate 55 moves to the left wall 10B side to load the loading arm. 51, the sub-loading arm 53, the first and second eject arms 61, 62 move toward and away from the periphery of the large-diameter disk 1A. Therefore, in a state where the cam control pin 556 is positioned at the rear surface 10D side end of the large-diameter disk holding portion 716C3, the large-diameter disk 1A is positioned on the turntable 23, and each of the arms 51, 53, 61, 62 has a large diameter. It is separated from the periphery of the disk 1A.

  The large-diameter disk chucking portion 716C4 is a groove portion extending from the rear surface 10D side end of the large-diameter disk holding portion 716C3 toward the rear surface 10D side. The large-diameter disk chucking portion 716C4 is a cam control pin 556 in a section where the clamp lifting pin 21C moves the clamp portion 714C and the playable portion 714D of the clamp lifting groove 714 when the large-diameter disk 1A is inserted. Is a groove to be engaged. In a state where the cam control pin 556 is engaged with the large-diameter disk chucking portion 716C4, the link plate 55 is moved to the left wall 10B, that is, the arms 51, 53, 61, 62 are large. It is maintained in a state separated from the periphery of the diameter disk 1A.

  The select arm 713 is provided on the bottom surface side of the slide plate 712 as shown in FIG. The select arm 713 is formed in a longitudinal shape in the front-rear direction, and one end portion on the front surface 10A side is pivotally supported on the slide plate 712 by a support shaft 713A. The support shaft 713A is provided with a torsion spring (not shown) to urge the select arm 713 in the counterclockwise direction.

  In addition, an arm position restriction pin 713 </ b> B protrudes toward the top surface at a substantially central portion of the select arm 713. The left wall 10B side of the arm position regulating pin 713B is in contact with the select piece 554 of the link plate 55. When the select piece 554 moves in the left-right direction due to the movement of the link plate 55 in the left-right direction, the select arm 713 rotates following the select piece 554 by the biasing force of the torsion spring.

A first extruded wall 713C that protrudes toward the left wall 10B is formed at the back 10D side end of the select arm 713, and a second extruded wall is formed at the substantially central portion of the select arm 713 at the right wall 10C. A portion 713D is formed.
These first and second extruded wall portions 713C and 713D can come into contact with the cam push pin 613 of the first eject arm 61, and the first push arm 61 rotates to bring the cam push pin 613 to the front 10A side. Extruded.
Here, when the large-diameter disk 1A is inserted into the disk device 100, the amount of movement of the link plate 55 increases, so that the amount of rotation of the select arm 713 increases, and the second pushing wall 713D is moved by the cam pushing pin 613. Pushed to the front 10A side. Further, when the small-diameter disk 1B is inserted into the disk device 100, the amount of movement of the link plate 55 is small, and therefore the amount of rotation of the select arm 713 is also small. Extruded to the side.

  Further, in the vicinity of the back surface 10D side of the first shift cam 71, for example, a third switch SW3 mounted on a control circuit unit disposed on the bottom surface is disposed. The third switch SW3 detects the moving state of the first shift cam 71.

  Specifically, the third switch SW3 is connected to the control circuit unit and includes a switch body and a movable piece, like the first and second switches SW1 and SW2. Then, when the first shift cam 71 is moved to the most front 10A side, the third switch SW3 is pushed in with the switch abutting portion 711D being abutted and is turned on (L level).

The second shift cam 72 slides in the left-right direction in conjunction with the operation of the first shift cam 71. That is, when the first shift cam 71 moves to the front 10A side, the second shift cam moves to the left wall 10B side, and when the first shift cam 71 moves to the back surface 10D side, the second shift cam moves to the right wall 10C side. Further, a clamp lift groove (not shown) having substantially the same shape as the clamp lift groove 714 of the first shift cam 71 is formed on the end face on the front face 10A side of the second shift cam. A clamp raising / lowering pin 21C (not shown) protruding from the pedestal portion 21 toward the back surface 10D is engaged with the clamp raising / lowering groove. The second shift cam moves in the left-right direction to swing the disk processing unit 20 in the same manner as the first shift cam 71.
A pin contact portion 721 is provided at the end of the second shift cam 72 on the left wall 10B side. The pin abutting portion 721 pushes the guide guide pin 561A of the guide mechanism 56 toward the left wall 10B while the second shift cam 72 is moved most toward the left wall 10B, and rotates the guide arm 562 toward the left wall 10B. Move.

The emergency operation unit 80 includes an emergency lever 81.
The emergency lever 81 is provided in the vicinity of the step wall 13 near the first transmission gear 421 of the drive unit 40. As shown in FIG. 12, the emergency lever 81 includes a rotation support portion 811, a gear moving portion 812, and a pin contact portion 813.
The rotation support portion 811 is provided on the bottom surface of the housing 10 and is rotatably supported by a support portion that rotatably supports the closing lever 16 described above.
The gear moving portion 812 is formed in a longitudinal shape extending from the rotation support portion 811 to the bottom surface side of the first transmission gear 421, and a gear contact portion 812A capable of contacting the bottom surface of the first transmission gear 421 at the tip portion. Is provided.
The pin contact portion 813 is formed in a longitudinal direction substantially along the step wall portion 13 and is disposed on an extension of the moving path of the first shift cam 71. An end of the pin contact portion 813 on the back surface 10D side is connected to the rotation support portion 811. Further, an inclined piece 813A is formed on the front surface 10A side of the pin contact portion 813 so as to incline from the bottom surface side to the top surface side toward the back surface 10D side.

  When the emergency lever 81 is inserted into the first emergency pin 920 (see FIG. 19), for example, from the first emergency pin insertion hole 10A3, the tip of the first emergency pin 920 is inclined by the pin contact portion 813. It abuts on the piece 813A. When the first emergency pin 920 is further inserted, the first emergency pin 920 pushes the inclined piece 813A toward the bottom surface, so that the emergency lever 81 rotates around the rotation support portion 811 and the gear moving portion 812 Moving to the top surface side, the first transmission gear 421 is pushed up to the top surface side.

[Disk unit operation]
Next, the operation of the disk device will be described with reference to the drawings.
FIG. 13 is a plan view showing the inside of the disk device in a motor driving start state of the large-diameter disk. FIG. 14 is a plan view showing the inside of the disk device in the middle of loading a large-diameter disk. FIG. 15 is a plan view showing the inside of the disk device in the cam extrusion start state of the large-diameter disk. FIG. 16 is a plan view showing the inside of the disk device in a state where the large-diameter disk has been loaded. FIG. 17 is a plan view showing an outline of an engagement state of the first shift cam, the link plate, and the loading slide plate in a state where the large-diameter disk is completely loaded. FIG. 18 is a plan view showing the inside of the disc device when the large-diameter disc can be played. FIG. 19 is a plan view showing an outline of the emergency operation tool. FIG. 20 is a side view of the emergency lever in the emergency operation. FIG. 21 is a plan view showing the inside of the disk device in the motor drive start state of the small-diameter disk. FIG. 22 is a plan view showing the inside of the disk device in the cam extrusion start state of the small-diameter disk. FIG. 23 is a plan view showing the inside of the disk device in a state where the small-diameter disk has been loaded. FIG. 24 is a plan view showing an outline of an engaged state of the first shift cam, the link plate, and the loading slide plate in a state where the small-diameter disk is completely loaded. FIG. 25 is a plan view showing the inside of the disc device when the small-diameter disc can be played. FIG. 26 is a diagram schematically showing a transport path for a small-diameter disk when the small-diameter disk is inserted from the left wall side. FIG. 27 is a diagram schematically showing a conveyance path of a small-diameter disk when the small-diameter disk is inserted from the right wall side.

(Large-diameter disk loading operation)
First, the carrying-in operation when the large-diameter disk 1A is inserted into the disk device 100 will be described.

As shown in FIG. 1, when a large-diameter disk 1A is inserted from the insertion / extraction port 14 of the disk apparatus 100 in the initial state, the peripheral edge of the large-diameter disk 1A is on the tip side of the roller 513 of the loading arm 51 and the sub-loading arm 53. The sliding wall 531 contacts. At this time, the large-diameter disk 1A is guided by the bottom surface side guide portion 532 and the top surface side guide portion 533 of the subloading arm 53 and comes into contact with the front end side of the sliding wall 531 of the subloading arm 53. For example, when the large-diameter disk 1A is inserted from the left wall 10B, the peripheral edge of the large-diameter disk 1A abuts on the base end side (rotating shaft side) of the sub-loading arm 53. Since the grip sheet 531A is not provided on the end side, the periphery of the large diameter disk 1A is inserted so as to slide on the sliding wall 531. As the large diameter disk 1A is inserted, the large diameter disk 1A is inserted. When the contact position between the peripheral edge and the sliding wall 531 moves to the front end side of the sub-loading arm 53, it comes into contact with the grip sheet 531A.
When the large-diameter disk 1A is further inserted on the back surface 10D side, the roller 513 in contact with the peripheral edge of the large-diameter disk 1A is pushed in, and the loading arm 51 is rotated toward the right wall 10C. As the loading arm 51 rotates, the link plate 55 moves in conjunction with the left wall 10B. Similarly to the loading arm 51, the sub-loading arm 53 also turns to the left wall 10B side.

  In the initial state, in the first transmission gear 421, the gear pin 421A3 provided on the male gear 421A abuts on the first gear pin locking portion 421B3 in the gear pin engaging groove 421B2 of the female gear 421B, and the female gear 421B. Can be turned in the clockwise direction. Therefore, the roller 513 runs idle in the carry-in direction by inserting the large-diameter disk 1A. Then, when a predetermined amount of the large-diameter disk 1A is inserted, the female gear 421B is idle, and the second gear pin engaging portion 421B4 in the gear pin engaging groove 421B2 contacts the gear pin 421A3, the roller 513 is moved in the carry-in direction. It becomes impossible to go around the sky.

  Further, when the loading arm 51 is slightly rotated, the link plate 55 is also moved to the left wall 10B side, and accordingly, the switch piece 558 is also moved to the left wall 10B side, and the movable piece of the second switch SW2 is pushed in. The second switch SW2 is turned on. When the second switch SW2 is turned on, the control circuit unit recognizes that the optical disk 1 has been inserted from the insertion / extraction port 14.

Thereafter, when the large-diameter disk 1A is further inserted, the loading arm 51 further rotates to the right wall 10C side, and the link plate 55 also moves to the left wall 10B side. Then, as shown in FIG. 13, the switch piece 557 of the link plate 55 is connected to the first switch SW1 in a state where the inner peripheral edge portion in the loading direction of the center hole of the large-diameter disk 1A is substantially positioned on the insertion / extraction port 14. The movable piece is pushed in and the first switch SW1 is turned on. Then, when recognizing that the first switch SW1 is turned on, the control circuit unit drives the drive motor 41 (motor drive start state).
By driving the drive motor 41, the male gear 421A of the first transmission gear 421 rotates in the clockwise direction, the gear pin 421A3 moves in the gear pin engagement groove 421B2, and again comes into contact with the first gear pin locking portion 421B3. . As a result, the driving force of the drive motor 41 can be transmitted from the male gear 421A to the female gear 421B, and transmitted from the drive transmission gear group 42 to the roller 513 of the loading arm 51, and the roller 513 carries in the large-diameter disk 1A. In the direction of rotation, that is, in the clockwise direction.
At this time, if the peripheral edge of the large-diameter disk 1A is in contact with the grip sheet 531A of the sub-loading arm 53, the large-diameter disk 1A is rotated by the driving force of the roller 513 and substantially rolls on the grip sheet 531A. It is pulled into the device 100.
In this motor driving start state, the loading arm 51 is rotated until the arm pin 511D is in contact with the arm contact portion 12B of the loading arm biasing portion 12A.

Thereafter, when the large-diameter disk 1A is further carried into the disk device 100 by the guide of the roller 513, the leading edge in the carrying-in direction of the large-diameter disk 1A comes into contact with the disk guide portion 562C of the guide arm 562. Specifically, the leading edge of the large-diameter disc 1A is brought into contact with the flange portion 562E, guided to the disc receiving portion 562D, and held by the disc receiving portion 562D.
In this state, since the guide connecting shaft 562B of the guide arm 562 is in the right position, the guide arm 562 receives a clockwise biasing force.

When the large-diameter disc 1A is further carried into the back surface 10D, the periphery of the large-diameter disc 1A comes into contact with the first and second eject arms 61 and 62. When the large-diameter disk 1A is carried into the disk device 100 from this state, the link plate 55 further moves to the left wall 10B side in conjunction with the rotation of the loading arm 51.
Further, the eject pin 611 of the first eject arm 61 moves to the large-diameter corresponding groove 553E of the eject restriction window of the link plate 55.

Thereafter, when the large-diameter disc 1A is further carried into the disc device 100, the roller 513 of the loading arm 51 and the sliding wall 531 of the sub-loading arm 53 sandwich the maximum diameter portion of the large-diameter disc 1A. (Maximum diameter clamped state). When the large-diameter disk 1A is further carried into the back surface 10D from this state, the loading arm 51 rotates counterclockwise by the urging force of the loading arm urging portion 12A, and the roller 513 and the large-diameter disk 1A The large diameter disc 1A is further fed to the back surface 10D side.
Further, in the vicinity of the maximum diameter clamping state, as shown in FIG. 14, when the disk guide portion 562C of the guide arm 562 is pushed by the peripheral edge portion of the large diameter disk 1A and rotates toward the left wall 10B, the guide arm 562 The guide connecting shaft 562B is in the position on the line segment. That is, the guide arm 562 is not subjected to the urging force in the clockwise direction or the counterclockwise direction.

Furthermore, the loading arm 51 is rotated by the loading of the large-diameter disk 1A, and the link plate 55 is also moved to the left wall 10B side. Accordingly, the select piece 554 of the link plate 55 also moves to the left wall 10B side. Further, since the arm position restricting pin 713B of the select arm 713 is urged toward the select piece 554, the arm position restricting pin 713B moves toward the left wall 10B as the select piece 554 moves. As a result, the select arm 713 rotates counterclockwise, and the second push-out wall portion 713D moves on the movement path of the cam push pin 613 of the first eject arm 61.
When the large-diameter disk 1A is further loaded and the first eject arm 61 is rotated, the cam push pin 613 of the first eject arm 61 is moved to the second push wall portion 713D of the select arm 713 as shown in FIG. The select arm 713 is pushed out to the front 10A side. (Cam extrusion start state).
Further, the movement of the link plate 55 causes the cam control pin 556 to move to the large-diameter disk clamp start portion 716C1 in the cam groove 716 of the slide plate 712.

  Further, from the maximum diameter clamping state to the cam push start state, the guide arm 562 further rotates toward the left wall 10B side with the disk guide portion 562C being pushed by the peripheral edge of the large diameter disk 1A. As a result, the guide coupling shaft 562B of the guide arm 562 is in the left position, and the guide arm 562 receives a biasing force in the counterclockwise direction.

  When the large-diameter disk 1A is further carried into the back surface 10D side, the first shift cam 71 is further moved to the front surface 10A side by the cam push pin 613 of the first eject arm 61. The first shift cam is in a state in which the large-diameter disk 1A is completely carried into the disk device 100, that is, in a state in which the carry-in terminal edge of the large-diameter disk 1A is carried into the back surface 10D side from the insertion / extraction port 14. The rack 711A of 71 is engaged with the pinion gear 425B of the cam shift gear 425 (cam drive transmission state).

  Thereafter, when the large-diameter disc 1A is further carried into the back surface 10D side and the center hole of the large-diameter disc 1A is moved above the turntable 23, as shown in FIG. In this state, the eject pin 611 is engaged with the large diameter restricting / engaging portion 553B, and the movement of the first eject arm 61 and the second eject arm 62 is restricted. Further, in this state, the large-diameter disk 1A includes the roller 513 of the loading arm 51, the sliding wall 531 of the sub-loading arm 53, the first disk contact portion 612 of the first eject arm 61, and the second eject arm 62. It is held by the second disk contact portion 622.

Further, when the first shift cam 71 is moved to the front 10A side by the driving force of the driving motor 41, the clamping operation is started.
The clamping operation is performed by moving the clamp raising / lowering pin 21 </ b> C of the base portion 21 in the clamping raising / lowering groove 714 of the first shift cam 71 by the movement of the first shift cam 71. Specifically, from the start of the movement of the first shift cam 71 to the loading completion state, the clamp raising / lowering pin 21C is disposed in the retracting portion 714A, and the pedestal portion 21 corresponds to the height position of the retracting portion 714A. It is located on the bottom side of the housing 10.

  When the first shift cam 71 further moves to the front 10A side from this state, the clamp lifting pins 21C move to the standby portion 714B. As a result, the pedestal 21 is temporarily lifted and lowered at a height position corresponding to the standby portion 714B, the disk engaging portion 23A of the turntable 23 is inserted into the center hole of the large diameter disc 1A, and the large diameter disc 1A is inserted. In addition to positioning, position correction of the large-diameter disk 1A is performed.

Further, the cam control pin 556 moves in the large-diameter disk clamp lifting / lowering portion 716C2 toward the back surface 10D until the clamp lifting / lowering pin 21C moves from the retracting portion 714A to the standby portion 714B.
The cam control pin 556 moves in the large-diameter disk holding portion 716C3 to the back surface 10D side while the clamp lifting pin 21C moves to the back surface 10D side of the standby portion 714B. Thereby, the link plate 55 moves to the left wall 10B side. When the clamp raising / lowering pin 21C moves to the connecting position of the standby part 714B and the clamp part 714C, the cam control pin 556 is moved to the large-diameter disk holding part 716C3 and the large-diameter disk chucking part 716C4 as shown in FIG. Move to the connection position. At this time, the slide link pin 551 moves to the back 10D side of the slide movement section 522D1 of the second loading engagement groove 522D, and further moves the idle running section 522D2 to the left wall 10B side. Thereby, the loading slide plate 522 is moved to the front surface 10A side, and the loading arm 51 is rotated to the most right wall 10C side. Therefore, the roller 513 of the loading arm 51 is separated from the periphery of the large-diameter disk 1A. Further, since the plate link pin 541F moves to the front 10A side along the synchronous engagement groove 552B, the subloading arm 53 also rotates to the left wall 10B side, and the sliding wall 531 is separated from the periphery of the large-diameter disk 1A. To do. Furthermore, the eject pin 611 of the first eject arm 61 moves to the large-diameter separation engagement portion 553D, and the first and second eject arms 61 and 62 are separated from the periphery of the large-diameter disc 1A.
At this time, since the large-diameter disk 1A is positioned on the turntable 23, the large-diameter disk 1A is not detached from the disk device 100.

Further, when the first shift cam 71 moves to the front surface 10A side, the clamp lifting pin 21C moves to the clamp portion 714C. As a result, the pedestal portion 21 moves to the top surface side, the large-diameter disk 1A is sandwiched between the turntable 23 and the clamp member provided on the top surface, and the center hole of the large-diameter disk 1A is inserted into the disk engaging portion 23A. And the clamping operation is completed. Thereafter, when the clamp raising / lowering pin 21C moves to the playable portion 714D, the pedestal portion 21 moves to a height position where the information processing unit 24 can process the information on the large-diameter disc 1A as shown in FIG.
At this time, since the cam control pin 556 is engaged with the large-diameter disk chucking portion 716C4, the link plate 55 is also maintained in the state of being moved to the leftmost wall 10B side, and the arms 51, 53, 61, The state where 62 is separated from the large-diameter disk 1A is maintained.

  Thereafter, when the first shift cam 71 further moves to the front face 10A side, the movable piece of the third switch SW3 and the switch contact portion 711D of the first shift cam 71 come into contact, and the third switch SW3 is turned on. As a result, the control circuit unit recognizes that the large-diameter disc 1A has been clamped and is ready to be played, and stops the drive motor 41.

The control circuit unit controls driving of the information processing unit 24 of the disk processing unit 20 to process information on the large diameter disk 1A, that is, a writing process for writing information to the large diameter disk 1A, Read processing for reading information recorded on the disc 1A is performed.
Further, the control circuit unit recognizes that the inserted optical disk 1 is a large-diameter disk 1A by detecting the rotational torque of the turntable 23.

(Large-diameter disk unloading operation)
Next, the carry-out operation of the large-diameter disk 1A will be described.
When the control circuit unit of the disk device 100 recognizes an input signal to carry out the large-diameter disk 1A, for example, by pressing an unillustrated eject button, the information processing operation of the optical disk 1 is stopped and the large-diameter disk 1A is stopped. Is carried out to the outside of the housing 10.

As an operation for carrying out the operation, the control circuit unit first causes a reverse current to flow through the spindle motor to stop the rotation of the turntable 23.
Thereafter, the drive motor 41 of the drive unit 40 is driven to move the first shift cam 71 to the back surface 10D side.
In addition, when the drive motor 41 starts to drive, the first transmission gear 421 is configured such that the gear pin 421A3 provided on the male gear 421A contacts the first gear pin engaging portion 421B3 in the gear pin engaging groove 421B2 of the female gear 421B. It touches. When the drive motor 41 is driven from this state to rotate the male gear 421A in the counterclockwise direction, the gear pin 421A3 moves in the counterclockwise direction along the gear pin engaging groove 421B2, and the second gear pin locking portion 421B4. Abut. In this state, the female gear 421B is in a state where the driving force is transmitted from the male gear 421A, and is driven to rotate counterclockwise by the driving force of the driving motor 41.
Further, as the first shift cam 71 moves toward the back surface 10D, the cam control pin 556 moves the large diameter disk cam groove 716C toward the front surface 10A. When the cam control pin 556 moves to the front 10A side along the large-diameter disk holding lift 716C3, the link plate 55 also moves to the right wall 10C side. Accordingly, the loading arm 51, the sub-loading arm 53, the first and second eject arms 61 and 62 are rotated in conjunction with the link plate 55, and the large-diameter disc 1A is moved to the roller 513, the sliding wall 531, the first and first It is held by the two disk contact portions 612 and 622.

  In this state, when the first shift cam 71 further moves to the back surface 10D side, the pedestal portion 21 moves to the bottom surface side, so that the large-diameter disk 1A is detached from the turntable 23 by an unillustrated eject pin.

Thereafter, the large-diameter disk 1A is carried out to the front surface 10A side by the driving of the roller 513 of the loading arm 51 and the urging force of the first and second eject arms 61 and 62.
Then, as shown in FIG. 13, when the large-diameter disk 1A is unloaded to the substantially same position as the motor driving start state, the switch piece 557 of the link plate 55 is separated from the first switch SW1.
In this state, the control circuit unit causes the drive motor 41 to reversely drive for a predetermined time, and then stops driving. That is, the reverse drive of the drive motor 41 causes the male gear 421A to rotate clockwise, and the gear pin 421A3 also moves clockwise along the gear pin engagement groove 421B2. And if gear pin 421A3 contact | abuts to 1st gear pin latching | locking part 421B3, the 1st transmission gear 421 will be in an initial state. Here, the predetermined time during which the drive motor 41 is driven in reverse may be at least a time during which the gear pin 421A3 can move from the second gear pin locking portion 421B4 in the gear pin engaging groove 421B2 to the first gear pin locking portion 421B3. .
In this state, the large-diameter disk 1 </ b> A is in a state in which the edge of the center hole on the back surface 10 </ b> D side is discharged from the insertion / extraction port 14.

  Further, in conjunction with the rotation of the loading arm 51 and the sub loading arm 53, the sub arm slide plate 541 also moves to the back surface 10D side. As a result, the back surface 10D side of the reverse pin 541G contacts the return contact portion 562G of the guide arm 562 and moves to the back surface 10D side, whereby the guide arm 562 rotates in the clockwise direction. When the guide connecting shaft 562B is in the right position, the guide arm 562 receives a biasing force in the clockwise direction.

  For example, when the large-diameter disc 1A is pulled out manually, the sub arm slide plate 541 is biased toward the back surface 10D, so that the loading arm 51 is also biased counterclockwise and rotated. Then, when the stopper piece 511 </ b> C contacts the stepped portion 431 of the cover member 43, the loading arm 51 stops rotating and returns to the initial state. Further, the guide arm 562 also returns to the initial state.

(Emergency operation when playing a large-diameter disc)
Next, an emergency forced ejection operation (emergency operation) of the large-diameter disc 1A when the large-diameter disc 1A is inserted into the disc device 100 and is ready to be played will be described.

  In a state where the large-diameter disk 1A is held on the turntable 23 in the disk device 100 and is rotating at a high speed under the control of the control circuit unit, for example, the drive of the disk device 100 is urgently stopped to forcibly eject the large-diameter disk 1A For example, an emergency operation tool 900 as shown in FIG. 19 is used to cause the disk device 100 to perform an emergency operation.

Here, the emergency operation tool 900 includes a handle portion 910, a first emergency pin 920, and a second emergency pin 930, as shown in FIG.
The handle portion 910 includes a grip portion 911 that can be held by a user's hand. Further, the first emergency pin 920 and the second emergency pin 930 are formed on one end surface of the handle portion 910 so as to protrude substantially in parallel.
The first emergency pin 920 is inserted into the first emergency pin insertion hole 10A3 of the decorative board 10A1 and is provided so as to be able to contact the front 10A side end portion of the first shift cam 71. In addition, the first emergency pin 920 is formed to have a length dimension that allows the first shift cam 71 to be pushed out to the most rear surface 10D side at the tip when inserted through the first emergency pin insertion hole 10A3. ing.
The second emergency pin 930 is inserted into the second emergency pin insertion hole 10A4 of the decorative board 10A1 and is provided so as to be able to contact the emergency turning piece 521C. The length of the second emergency pin 930 is such that the maximum diameter portion of the small-diameter disk 1B can be inserted at least between the roller 513 of the loading arm 51 and the sliding wall 531 of the sub-loading arm 53. The dimensions are such that the loading arm 51 is rotated by pushing out 521C.
In order to prevent erroneous operation of the insertion positions of the first emergency pin 920 and the second emergency pin 930, the first and second emergency pins 920, 930 may be formed with different diameters. . The first and second emergency pin insertion holes 10A3 and 10A4 have different hole shapes, and the first and second emergency pin insertion holes 10A3 and 930 have cross-sectional shapes of the first and second emergency pin insertion holes 10A3 and 10A4, respectively. It may be formed in an irregular shape corresponding to the hole shape.
Furthermore, although the emergency operation tool 900 as described above is used in the present embodiment, separate first and second emergency pins 920 and 930 may be used. In particular, in the emergency operation of the large-diameter disc 1A, the emergency operation can be performed by inserting only the first emergency pin 920.

In the emergency operation of the large-diameter disk 1A, the first emergency pin 920 is inserted into the first emergency pin insertion hole 10A3 using the emergency operation tool 900 as described above.
As a result, the tip of the first emergency pin 920 comes into contact with the pin contact portion 813 of the emergency lever 81 and pushes the pin contact portion 813 down to the bottom side as shown in FIG. As a result, the emergency lever 81 rotates about the rotation support portion 811 and the gear moving portion 812 moves to the top surface side to push up the first transmission gear 421 to the top surface side. Thereby, the first large-diameter transmission gear 421A1 of the first transmission gear 421 is separated from the worm gear 411. Accordingly, the gears of the drive transmission gear group 42 are not locked by the drive motor 41, and a rotation-free state in which the gears can be easily rotated with a slight force.

  When the first emergency pin 920 is further inserted from this state, the tip of the first emergency pin 920 pushes the front 10A side end of the first shift cam 71, and the first shift cam 71 moves to the back 10D side.

  At this time, the third switch SW3 is turned off by the movement of the first shift cam 71. When recognizing that the third switch SW3 is turned off, the control circuit section applies a reverse current to the spindle motor to forcibly stop the rotation of the turntable 23.

  After that, when the first emergency pin 920 is inserted and the first shift cam 71 is further moved to the rear surface 10D side, the clamp lifting pin 21C is moved from the playable portion 714D of the clamp lifting groove 714 to the retracting portion 714A, and an eject (not shown) The large-diameter disk 1A is detached from the turntable 23 by the pins. Further, the loading arm 51, the sub-loading arm 53, the first and second eject arms 61 and 62 are rotated, and the periphery of the large-diameter disk 1A is held.

  When the first shift cam 71 is moved to the rearmost face 10D side, the first eject arm 61 is pushed and rotated by the biasing spring 715, and the large-diameter disk 1A is discharged from the insertion / extraction port 14.

  When the first emergency pin 920 is pulled out, the first transmission gear 421 is urged toward the bottom by the gear urging spring 421C, and the first large-diameter transmission gear 421A1 and the worm gear 411 are engaged again. Further, the emergency lever 81 also rotates and returns to the initial state.

(Small diameter disk loading operation)
Next, the carrying-in operation when the small-diameter disk 1B is inserted into the disk device 100 will be described.

(Loading operation when a small-diameter disc is inserted from the approximate center of the insertion / extraction port)
In the carry-in operation of the small-diameter disk 1B, the small-diameter disk 1B is carried into the disk device 100 through a different conveyance path depending on the insertion position of the small-diameter disk 1B.

As shown in FIG. 1, when the small-diameter disk 1B is inserted from the substantially central part of the insertion / extraction port 14 of the disk device 100 in the initial state, the inner peripheral edge of the small-diameter disk 1B in the loading direction of the center hole is above the insertion / extraction port 14. In this state, the peripheral edge of the small-diameter disk 1B is guided by the bottom surface side guide portion 532 and the top surface side guide portion 533 of the subloading arm 53 and on the tip side of the sliding wall 531 of the subloading arm 53. Abut. Further, it abuts on the roller 513 of the loading arm 51.
When the small-diameter disk 1B is further inserted into the back surface 10D side, the peripheral edge of the small-diameter disk 1B is pushed in contact with both the loading arm 51 and the sub-loading arm 53, so that both arms are on the right wall 10C side and the left wall 10B side, respectively. To turn.

  Similarly to the operation of loading the large-diameter disk 1A, in the initial state, the first transmission gear 421 is such that the gear pin 421A3 provided on the male gear 421A is engaged with the first gear pin in the gear pin engaging groove 421B2 of the female gear 421B. The female gear 421B can be idled clockwise in contact with the stop portion 421B3. Therefore, the roller 513 runs idle in the carry-in direction by inserting the small-diameter disk 1B. When a predetermined amount of the small-diameter disk 1B is inserted, the female gear 421B is idle, and the second gear pin engaging portion 421B4 in the gear pin engaging groove 421B2 contacts the gear pin 421A3, the roller 513 is empty in the loading direction. It is impossible to go around.

  Further, when the loading arm 51 is slightly rotated, the link plate 55 is also moved to the left wall 10B side, and accordingly, the switch piece 558 is also moved to the left wall 10B side, and the movable piece of the second switch SW2 is pushed in. The second switch SW2 is turned on. When the second switch SW2 is turned on, the control circuit unit recognizes that the optical disk 1 has been inserted from the insertion / extraction port 14.

Thereafter, when the small-diameter disk 1B is further inserted, the loading arm 51 further rotates to the right wall 10C side, and the link plate 55 also moves to the left wall 10B side. Then, as shown in FIG. 21, when the switch piece 557 of the link plate 55 pushes the movable piece of the first switch SW1, and the first switch SW1 is turned on, the control circuit unit drives the drive motor 41 (motor Driving start state).
By driving the drive motor 41, the male gear 421A of the first transmission gear 421 rotates in the clockwise direction, the gear pin 421A3 moves in the gear pin engagement groove 421B2, and again comes into contact with the first gear pin locking portion 421B3. . As a result, the driving force of the drive motor 41 can be transmitted from the male gear 421A to the female gear 421B, and transmitted from the drive transmission gear group 42 to the roller 513 of the loading arm 51, and the roller 513 carries in the small-diameter disk 1B. It is rotated in the direction, that is, the clockwise direction.
In this motor drive start state, the loading arm 51 is rotated until the arm pin 511D comes into contact with the arm contact portion 12B of the loading arm urging portion 12A as in the case of the large-diameter disc 1A loading operation. .

Thereafter, when the small-diameter disk 1B is further carried into the disk device 100 by the guide of the roller 513, the leading edge in the loading direction of the small-diameter disk 1B comes into contact with the disk guide portion 562C of the guide arm 562. Specifically, the leading edge of the small-diameter disc 1B is brought into contact with the flange portion 562E, guided to the disc receiving portion 562D, and held by the disc receiving portion 562D.
In this state, since the guide connecting shaft 562B of the guide arm 562 is in the right position, the guide arm 562 receives a clockwise biasing force.

When the small-diameter disk 1B is further carried into the back surface 10D, the periphery of the small-diameter disk 1B comes into contact with the first and second eject arms 61 and 62. When the small-diameter disk 1B is carried into the disk device 100 from this state, the link plate 55 further moves to the left wall 10B side in conjunction with the rotation of the loading arm 51.
As the link plate 55 moves, the select piece 554 also moves to the left wall 10B side, and the arm position regulating pin 713B of the select arm 713 follows the select piece 554 and moves to the left wall 10B side. At this time, when the small-diameter disk 1B is loaded, the rotation amount of the loading arm 51 is small and the rotation amount of the select arm 713 is small as compared with the large-diameter disk 1A loading operation. Therefore, the cam push pin 613 of the first eject arm 61 pushed and rotated by the peripheral edge of the small-diameter disk 1B comes into contact with the first push wall 713C of the select arm 713 (cam) as shown in FIG. Extrusion start state). In addition, the movement of the link plate 55 causes the cam control pin 556 to move to the small-diameter disk clamp start portion 716B1 in the cam groove 716 of the slide plate 712.

Thereafter, the cam push pin 613 pushes the first push wall 713 </ b> C of the select arm 713 toward the front surface 10 </ b> A as the first eject arm 61 rotates.
At this time, since the cam shift gear 425 of the drive transmission gear group 42 is driven to rotate in the clockwise direction, the lock arm 426 is also urged in the clockwise direction by the frictional force, and the lock pin 426D is inserted into the lock engagement groove 711B. The state is engaged with the longitudinal engagement portion 711B1, that is, the cam lock is released. Further, the cam control pin 556 of the link plate 55 is located at a position where it can move to the small-diameter disk cam groove 716B.
For this reason, when the first shift cam 71 is pushed out by the cam push pin 613, the first shift cam 71 moves to the front face 10A side.

  When the small-diameter disk 1B is further carried into the back surface 10D side, the first shift cam 71 is further moved to the front surface 10A side by the cam push pin 613 of the first eject arm 61. Then, in a state where the small-diameter disk 1B is completely carried into the disk device 100, that is, in a state where the carry-in end edge portion of the small-diameter disk 1B is carried into the back surface 10D side from the insertion / ejection port 14, The rack 711A is engaged with the pinion gear 425B of the cam shift gear 425 (cam drive transmission state).

Thereafter, when the small-diameter disk 1B is further carried into the back surface 10D side and the center hole of the small-diameter disk 1B is moved above the turntable 23, as shown in FIG. In this state, the eject pin 611 is engaged with the small diameter restricting / engaging portion 553A, and the movement of the first eject arm 61 and the second eject arm 62 is restricted. In this state, the small-diameter disk 1B is composed of the roller 513 of the loading arm 51, the sliding wall 531 of the sub-loading arm 53, the first disk contact portion 612 of the first eject arm 61, and the second disk of the second eject arm 62. It is held by the contact portion 622.
In this state, in the guide arm 562, the disc guide portion 562C is pushed by the peripheral edge of the small-diameter disc 1B and rotates to the left wall 10B side, and the guide connecting shaft 562B of the guide arm 562 is in the line segment upper position state. Become. That is, the guide arm 562 is not subjected to the urging force in the clockwise direction or the counterclockwise direction.

Further, when the first shift cam 71 is moved to the front 10A side by the driving force of the driving motor 41, the clamping operation is started.
The clamping operation is performed by moving the clamp raising / lowering pin 21 </ b> C of the base portion 21 in the clamping raising / lowering groove 714 of the first shift cam 71 by the movement of the first shift cam 71. Specifically, from the start of the movement of the first shift cam 71 to the loading completion state, the clamp raising / lowering pin 21C is disposed in the retracting portion 714A, and the pedestal portion 21 corresponds to the height position of the retracting portion 714A. It is located on the bottom side of the housing 10.

  When the first shift cam 71 further moves to the front 10A side from this state, the clamp lifting pins 21C move to the standby portion 714B. As a result, the pedestal portion 21 is temporarily stopped at the height position corresponding to the standby portion 714B, and the disk engaging portion 23A of the turntable 23 is inserted into the center hole of the small diameter disc 1B, thereby positioning the small diameter disc 1B. In addition, the position correction of the small-diameter disk 1B is performed.

In addition, the cam control pin 556 moves in the small-diameter disk clamp lifting / lowering portion 716B2 toward the back surface 10D until the clamp lifting / lowering pin 21C moves from the retracting portion 714A to the standby portion 714B.
The cam control pin 556 moves inside the small-diameter disk holding portion 716B3 toward the back surface 10D while the clamp lifting pin 21C moves the standby portion 714B toward the back surface 10D. Thereby, the link plate 55 moves to the left wall 10B side. When the clamp raising / lowering pin 21C moves to the connecting position of the standby part 714B and the clamp part 714C, the cam control pin 556 is connected to the small-diameter disk holding part 716B3 and the small-diameter disk chucking part 716B4 as shown in FIG. Move to the connection position. At this time, the slide link pin 551 moves to the backmost side 10D side of the slide movement section 522D1 of the second loading engagement groove 522D. As a result, the loading slide plate 522 moves to the front surface 10A side, and the loading arm 51 turns to the rightmost wall 10C side in the same manner as when the large-diameter disk 1A is loaded. Therefore, the roller 513 of the loading arm 51 is separated from the peripheral edge of the small-diameter disk 1B. Further, the movement of the link plate 55 to the left wall 10B side causes the plate link pin 541F to move to the front 10A side along the synchronous engagement groove 552B, so the subloading arm 53 also rotates to the left wall 10B side, Separated from the periphery of the small-diameter disk 1B. Further, the eject pin 611 of the first eject arm 61 moves to the small diameter separation engagement portion 553C, and the first and second eject arms 61 and 62 are separated from the peripheral edge of the small diameter disc 1B.
At this time, since the small-diameter disk 1B is positioned on the turntable 23, it is not detached from the disk device 100.

Further, when the first shift cam 71 moves to the front surface 10A side, the clamp lifting pin 21C moves to the clamp portion 714C. As a result, the pedestal portion 21 moves to the top surface side, the small-diameter disk 1B is sandwiched between the turntable 23 and the clamp member provided on the top surface, and the center hole of the small-diameter disk 1B is engaged with the disk engaging portion 23A. The clamping operation is completed. Thereafter, when the clamp raising / lowering pin 21C moves to the playable portion 714D, the pedestal portion 21 moves to a height position where the information processing unit 24 can process the information on the small-diameter disk 1B, as shown in FIG.
At this time, the cam control pin 556 is engaged with the small-diameter disk chucking portion 716B4. Thereby, each arm 51, 53, 61, 62 is maintained in a state of being separated from the small-diameter disk 1B. Further, since the loading arm 51 is rotated to substantially the same position as that when the large-diameter disk 1A is loaded, the swinging operation of the disk processing unit 20 is not affected.

  Then, in conjunction with the first shift cam 71, the second shift cam 72 also moves to the left wall 10B side. As a result, the pin contact portion 721 of the second shift cam 72 moves the guide guide pin 561A of the guide plate 561 toward the left wall 10B. As a result, the guide coupling shaft 562B of the guide arm 562 is in the left position, and the guide arm 562 receives a biasing force in the counterclockwise direction.

  Thereafter, when the first shift cam 71 further moves to the front surface 10A side, the movable piece of the third switch SW3 and the switch contact portion 711D of the first shift cam 71 are brought into an on state. As a result, the control circuit unit recognizes that the small-diameter disc 1B has been clamped and is ready to be played, and stops the drive motor 41.

Then, the control circuit unit controls the driving of the information processing unit 24 of the disk processing unit 20 to process information on the small-diameter disk 1B, that is, a writing process for writing information to the small-diameter disk 1B, or to the small-diameter disk 1B. Read process to read the recorded information.
Further, the control circuit unit recognizes that the inserted optical disk 1 is a small-diameter disk 1B by detecting the rotational torque of the turntable 23.

(Loading operation when a small-diameter disc is inserted from the left wall side of the insertion / extraction port)
When the small-diameter disk 1B is inserted from the left wall 10B side, the small-diameter disk 1B is carried into the disk device 100 through the conveyance path as shown in FIG.
That is, the peripheral edge portion of the small-diameter disk 1B is guided by the bottom surface side guide portion 532 and the top surface side guide portion 533 of the subloading arm 53 and comes into contact with the sliding wall 531 of the subloading arm 53.

When the small-diameter disk 1B is further inserted from the left wall 10B side to the back surface 10D side, the sub-loading arm 53 rotates to the left wall 10B side.
At this time, the sub arm slide plate 541 moves to the front side in conjunction with the sub loading arm 53. As a result, the plate link pin 541F of the sub arm slide plate 541 moves to the front 10A side in the asynchronous engagement groove 552A of the slide link groove 552. However, since the link plate 55 does not move in the left-right direction, the loading arm 51 is not synchronized. Does not rotate. When the plate link pin 541F comes into contact with the subloading restriction portion 552A4, the movement of the plate link pin 541F toward the front surface 10A is restricted, so that the rotation of the subloading arm 53 is also restricted. In this state, the small-diameter disk 1B is not completely inserted into the disk device 100, that is, a part of the small-diameter disk 1B protrudes outside the insertion / extraction port 14 and can be picked out by the operator.

  When the small-diameter disk 1B is further inserted in this state, the rotation of the sub-loading arm 53 is restricted, so that the small-diameter disk 1B moves along the sliding wall 531 toward the center line of the disk device 100 on the right wall 10C. Move to the side. At this time, in a state where the peripheral edge of the small-diameter disk 1B is in contact with the base end side of the sub-loading arm 53, the small-diameter disk 1B and the grip sheet 531A are not in contact with each other. Becomes easier.

When the peripheral edge of the small-diameter disk 1B is brought into contact with the roller 513 and further pushed into the back surface 10D, the loading arm 51 is also rotated toward the right wall 10C.
At this time, similarly to the case where the small-diameter disk 1B is inserted from the substantially central portion of the insertion / extraction port 14, the roller 513 idles in the carry-in direction, and the feeling of insertion of the small-diameter disk 1B is improved.

Thereafter, when the link plate 55 moves to the left wall 10B side by the rotation of the loading arm 51, the first switch SW1 is turned on, the drive motor 41 is driven, and the roller 513 is rotationally driven in the carry-in direction. Thereby, the small-diameter disk 1B rolls on the grip sheet 531A of the sub-loading arm 53 and is carried into the back surface 10D side.
When the link plate 55 further moves to the left wall 10B side, the plate link pin 541F also moves to the intersection between the loading restriction portion 552A2 and the subloading restriction portion 552A4 and is engaged with the synchronous engagement groove 552B. As a result, the loading arm 51 and the sub-loading arm 53 can be rotated synchronously by the movement of the link plate 55 toward the left wall 10B.
Thereafter, when the small-diameter disk 1B is further moved to the back surface 10D side by the driving force of the drive motor 41, the operation when the small-diameter disk 1B is inserted from the insertion / extraction port 14 is performed, that is, the first shift cam The operation of pushing 71 to the front 10A side and clamping the small-diameter disk 1B is performed.

(Loading operation when a small-diameter disc is inserted from the right wall side of the insertion / extraction port)
When the small-diameter disk 1B is inserted from the right wall 10C side, the small-diameter disk 1B is carried into the disk device 100 through the conveyance path as shown in FIG.
That is, the peripheral edge portion of the small-diameter disk 1B comes into contact with the roller 513 of the loading arm 51.

When the small-diameter disk 1B is further inserted from the right wall 10C side to the back surface 10D side, the loading arm 51 rotates to the right wall 10C side. At this time, similarly to the case where the small-diameter disk 1B is inserted from the substantially central portion of the insertion / extraction port 14, the roller 513 idles in the carry-in direction, and the feeling of insertion of the small-diameter disk 1B is improved.
At this time, the link plate 55 moves to the left wall 10B side in conjunction with the loading arm 51. Thereby, the plate link pin 541F of the sub arm slide plate 541 moves to the right wall 10C side in the asynchronous engagement groove 552A of the slide link groove 552. However, since the sub arm slide plate 541 does not move in the front-rear direction, the sub loading arm 53 It does not synchronize and does not rotate. When the plate link pin 541F comes into contact with the loading restricting portion 552A2, the movement of the link plate 55 toward the left wall 10B is restricted, so that the rotation of the loading arm 51 is also restricted. In this state, the small-diameter disk 1B is not completely inserted into the disk device 100, that is, a part of the small-diameter disk 1B protrudes outside the insertion / extraction port 14 and can be picked out by the operator.

Further, when the first switch SW1 is turned on by the movement of the link plate 55, the drive motor 41 is driven and the roller 513 is rotationally driven in the carry-in direction.
If the small-diameter disk 1B is further inserted in this state, the rotation of the loading arm 51 is restricted, so that the small-diameter disk 1B moves toward the left wall 10B toward the center line of the disk device 100.
When the peripheral edge of the small-diameter disk 1B is brought into contact with the sub-loading arm 53 and the small-diameter disk 1B is further pushed into the back surface 10D, the sub-loading arm 53 is also rotated toward the left wall 10B.

Thereafter, the rotation of the sub loading arm 53 causes the plate link pin 541F to move to the front surface 10A side, that is, to the intersection of the loading restriction portion 552A2 and the sub loading restriction portion 552A4, and is engaged with the synchronous engagement groove 552B. As a result, the loading arm 51 and the sub-loading arm 53 can be rotated synchronously by the movement of the link plate 55 toward the left wall 10B.
Thereafter, when the small-diameter disk 1B is further moved to the back surface 10D side by the driving force of the drive motor 41, the same operation as that performed when the small-diameter disk 1B is inserted from the insertion / extraction port 14 is performed. Then, the first shift cam 71 is pushed out toward the front surface 10A, and the operation of clamping the small-diameter disk 1B is performed.

(Small diameter disk unloading operation)
Next, the carry-out operation of the small-diameter disk 1B will be described.
When the control circuit unit of the disk device 100 recognizes an input signal to carry out the small-diameter disk 1B, for example, by pressing an unillustrated eject button, the information processing operation of the optical disk 1 is stopped and the small-diameter disk 1B is loaded. The operation of carrying it out of the body 10 is performed.

As an operation for carrying out the operation, the control circuit unit first causes a reverse current to flow through the spindle motor to stop the rotation of the turntable 23.
Thereafter, the drive motor 41 of the drive unit 40 is driven to move the first shift cam 71 to the back surface 10D side.
At the start of driving of the drive motor 41, the first transmission gear 421 has a gear pin 421A3 provided on the male gear 421A and a first gear pin locking portion 421B3 in the gear pin engaging groove 421B2 of the female gear 421B. It is in contact. When the drive motor 41 is driven from this state to rotate the male gear 421A in the counterclockwise direction, the gear pin 421A3 moves in the counterclockwise direction along the gear pin engaging groove 421B2, and the second gear pin locking portion 421B4. Abut. In this state, the female gear 421B is in a state where the driving force is transmitted from the male gear 421A, and is driven to rotate counterclockwise by the driving force of the driving motor 41.
Further, as the first shift cam 71 moves toward the back surface 10D, the cam control pin 556 moves the small diameter disk cam groove 716B toward the front surface 10A. When the cam control pin 556 moves to the front 10A side along the small-diameter disk holding portion 716B3, the link plate 55 moves to the right wall 10C side. Accordingly, the loading arm 51, the sub-loading arm 53, the first and second eject arms 61 and 62 are rotated in conjunction with the link plate 55, and the small-diameter disk 1B is rotated by the roller 513, the sliding wall 531, and the first and second. It is held by disk contact portions 612 and 622.

  In this state, when the first shift cam 71 further moves to the back surface 10D side, the pedestal portion 21 moves to the bottom surface side, so that the small-diameter disk 1B is detached from the turntable 23 by an unillustrated eject pin.

Thereafter, the small-diameter disk 1B is carried out to the front surface 10A side by the driving of the roller 513 of the loading arm 51 and the urging force of the first and second eject arms 61 and 62.
Then, as shown in FIG. 21, when the small-diameter disk 1B is unloaded to the substantially same position as the motor driving start state, the switch piece 557 of the link plate 55 is separated from the first switch SW1. If the small-diameter disk 1B is further ejected from this state, the link plate 55 further moves to the right wall 10C side, so that the switch piece 558 is separated from the second switch SW2 and is turned off.

When the control circuit unit detects that the second switch SW2 is turned off, the control circuit unit recognizes that the small-diameter disk 1B has been ejected and drives the drive motor 41 for a predetermined time. Carry out driving. By this delay driving, the small-diameter disk 1B is further discharged to the front surface 10A side. At this time, since the sub arm slide plate 541 is urged toward the back surface 10D, the loading arm 51 rotates following the small diameter disk 1B with the roller 513 in contact with the peripheral edge of the small diameter disk 1B. When the stopper piece 511 </ b> C of the loading arm 51 contacts the step portion 431 of the cover member 43, the movement of the loading arm 51 is restricted. In this state, the small-diameter disk 1B is in a state in which the edge of the center hole on the back surface 10D side is discharged from the insertion / extraction port 14.
Then, after a predetermined time from the implementation of the delay drive, the control circuit unit reversely drives the drive motor 41 for a predetermined time and then stops the drive. That is, the reverse drive of the drive motor 41 causes the male gear 421A to rotate clockwise, and the gear pin 421A3 also moves clockwise along the gear pin engagement groove 421B2. And if gear pin 421A3 contact | abuts to 1st gear pin latching | locking part 421B3, the 1st transmission gear 421 will be in an initial state. Here, the predetermined time during which the drive motor 41 is driven in reverse may be a time when at least the gear pin 421A3 can move from the second gear pin locking portion 421B4 to the first gear pin locking portion 421B3 in the gear pin engagement groove B2. .

  Further, in conjunction with the rotation of the loading arm 51 and the sub loading arm 53, the sub arm slide plate 541 also moves to the back surface 10D side. Thereby, the back surface 10D side of the reverse pin 541G contacts the return contact portion 562G of the guide arm 562 and moves to the back surface 10D side, so that the guide connecting shaft 562B of the guide arm 562 is in the right position state. Thereby, the guide arm 562 receives a biasing force in the clockwise direction and rotates to the initial state.

(Emergency operation when playing a small-diameter disc)
Next, an emergency forced ejection operation (emergency operation) of the small-diameter disc 1B when the small-diameter disc 1B is inserted into the disc device 100 and is ready to be played will be described.

  In a state where the small-diameter disk 1B is held on the turntable 23 in the disk device 100 and is rotating at a high speed under the control of the control circuit unit, for example, the drive of the disk device 100 needs to be urgently stopped to forcibly eject the small-diameter disk 1B. In such a case, for example, the emergency operation tool 900 similar to that used in the emergency operation of the large-diameter disc 1A is used to cause the disc device 100 to perform the emergency operation.

Specifically, in the emergency operation of the small-diameter disk 1B, the emergency operation tool 900 used in the emergency operation of the large-diameter disk 1A is used, and the first emergency pin 920 is inserted into the first emergency pin insertion hole 10A3. .
As a result, the tip of the first emergency pin 920 comes into contact with the pin contact portion 813 of the emergency lever 81 and pushes down the pin contact portion 813 to the bottom surface side. Accordingly, as shown in FIG. 20, the emergency lever 81 rotates about the rotation support portion 811, and the gear moving portion 812 moves to the top surface side to push up the first transmission gear 421 to the top surface side. Thereby, the first large-diameter transmission gear 421A1 of the first transmission gear 421 is separated from the worm gear 411. Accordingly, the gears of the drive transmission gear group 42 are not locked by the drive motor 41, and a rotation-free state in which the gears can be easily rotated with a slight force.

  When the first emergency pin 920 is further inserted from this state, the tip of the first emergency pin 920 pushes the front 10A side end of the first shift cam 71, and the first shift cam 71 moves to the back 10D side.

  At this time, the third switch SW3 is turned off by the movement of the first shift cam 71. When recognizing that the third switch SW3 is turned off, the control circuit section applies a reverse current to the spindle motor to forcibly stop the rotation of the turntable 23.

  After that, when the first emergency pin 920 is inserted and the first shift cam 71 is further moved to the rear surface 10D side, the clamp lifting pin 21C is moved from the playable portion 714D of the clamp lifting groove 714 to the retracting portion 714A, and an eject (not shown) The small-diameter disk 1B is detached from the turntable 23 by the pins. Further, the loading arm 51, the sub-loading arm 53, the first and second eject arms 61 and 62 are rotated, and the periphery of the small-diameter disk 1B is held.

  When the first shift cam 71 is moved to the rearmost face 10D side, the first eject arm 61 is pushed and rotated by the biasing spring 715, and the small-diameter disc 1B is moved to the front face 10A side.

Further, when the emergency operation tool 900 is inserted, a predetermined amount of the first emergency pin 920 is inserted and the small-diameter disk 1B is held by the arms 51, 53, 61, 62, and at the same time, the second emergency pin 930 is inserted into the second emergency pin 930. It is inserted into the disk device 100 through the emergency pin insertion hole 10A4.
As a result, the tip of the second emergency pin 930 comes into contact with the emergency turning piece 521C and rotates the loading link arm 521 in the counterclockwise direction. As a result, the loading arm 51 rotates clockwise, that is, toward the left wall 10B.
Here, as described above, the second emergency pin 930 is in an emergency state in which the maximum diameter portion of the small-diameter disk 1B can be inserted between at least the roller 513 of the loading arm 51 and the sliding wall 531 of the sub-loading arm 53. The rotating piece 521 </ b> C is pushed out to form a dimension for rotating the loading arm 51. Therefore, by pushing the second emergency pin 930, the small-diameter disk 1B can be inserted between the roller 513 of the loading arm 51 and the sliding wall 531 of the sub-loading arm 53, and the first and second eject arms 61, 62 are inserted. The small-diameter disk 1B is discharged to the outside from the insertion / extraction port 14 by the urging force of the guide arm 562.

  When the first emergency pin 920 and the second emergency pin 930 are pulled out, the first transmission gear 421 is urged toward the bottom by the gear urging spring 421C, and the first large-diameter transmission gear 421A1 and the worm gear 411 are again connected. Engaged. Further, the emergency lever 81 also rotates and returns to the initial state.

[Effects of disk unit]
As described above, in the disk device 100 of the above embodiment, the drive motor 41, the roller 513 that is rotationally driven by the driving force of the drive motor 41, and transports the optical disk 1, and the roller 513 when the optical disk 1 is unloaded. Includes a first transmission gear 421 that is in a state in which the drive of the drive motor 41 is transmitted after being rotated by a predetermined angle in the loading direction for loading the optical disc 1.
For this reason, when the optical disk 1 is manually pushed into the back surface 10D at the start of carrying-in of the optical disk 1 into the disk device 100, the roller 513 can be idled in the loading direction of the optical disk 1 by a predetermined angle. Therefore, even when no driving force is transmitted from the drive motor 41 to the roller 513 and each gear of the drive transmission gear group 42 is mechanically locked, the optical disk 1 can be easily moved in the loading direction by the idle rotation of the roller 513. It can be inserted and the feeling of insertion can be improved. Therefore, the operability when inserting the disk device 100 can be improved.

The first transmission gear 421 of the drive transmission gear group 42 includes a male gear 421A that engages with the worm gear 411 and a female gear 421B that engages with the roller drive branch gear 423, and the male gear 421A and The female gear 421B is coaxially provided so as to be rotatable relative to each other.
For this reason, by rotating the male gear 421A and the female gear 421B relative to each other by a predetermined angle, the conveying roller 513 can be rotated by a predetermined angle in the loading direction. Further, since the male gear 421A and the female gear 421B are provided on the same axis, a large installation space is unnecessary and the configuration can be simplified.

The male gear 421A of the first transmission gear 421 includes a gear pin 421A3 protruding toward the female gear 421B, and the female gear 421B engages with the gear pin 421A3 so as to be movable. It has.
Therefore, the driving force from the drive motor 41 is transmitted from the male gear 421A to the female gear 421B in a state where the gear pin 421A3 is locked to one of the gear pin locking portions 421B3 and 421B4 of the gear pin engaging groove 421B2. The roller 513 can be idled by rotating the female gear 421B relative to the male gear 421A in a state where the gear pin 421A3 moves in the groove of the gear pin engaging groove 421B2. Therefore, the roller 513 can be rotated idly with a simple configuration. Further, the idling rotation amount of the roller 513 can always be made substantially constant, and the optical disk 1 can be transported satisfactorily without any delay in the loading operation of the optical disk 1.

When the control circuit unit detects that the first switch SW1 is turned off during the carry-out operation of the large-diameter disk 1A, the control motor unit reverses the drive motor 41 for a predetermined time and turns the gear pin 421A3 of the male gear 421A to the first position. One gear pin is brought into contact with the locking portion 421B3. Similarly, when the control circuit unit detects that the second switch SW2 is turned off during the carry-out operation of the small-diameter disk 1B, the control motor unit reverses the drive motor 41 for a predetermined time and turns the gear pin 421A3 of the male gear 421A. It abuts on the first gear pin locking portion 421B3.
For this reason, in the state where the first switch SW1 is turned off during the carrying-out operation of the large-diameter disc 1, the gear pin 421A3 is brought into contact with the second gear pin locking portion 421B4, and the roller 513 is idled in the carrying-in direction of the optical disc 1. However, since the drive motor 41 is driven reversely as described above, it can be returned to the position where it abuts on the gear pin 421A3 and the first gear pin locking portion 421B3. That is, the first transmission gear 421 returns to the initial state, and the roller 513 can be easily returned to a state where the roller 513 can idle in the loading direction of the optical disc 1.
At this time, as a predetermined time during which the drive motor 41 is driven in the reverse direction, the control circuit unit slightly moves at least the gear pin 421A3 from the second gear pin locking portion 421B4 in the gear pin engaging groove 421B2 to the first gear pin locking portion 421B3. As long as the drive motor 41 is reversed, there is no inconvenience that the optical disk 1 is carried into the disk device 100 again.

When the insertion of the optical disc 1 is started, the roller 513 idles in the carry-in direction and the gear pin 421A3 comes into contact with the second gear pin locking portion 421B4, so that the optical disc 1 can be idle in the carry-out direction.
For this reason, if the optical disk 1 is inserted when the power is turned off when no power is supplied to the disk device 100, the optical disk 1 can be idled in the unloading direction when the optical disk 1 is inserted to some extent, and the first eject arm 61 and the guide arm 562 By the urging force, the roller 513 can be easily idled so that a part of the optical disk 1 can be discharged from the insertion / extraction port 14. Therefore, even when the optical disk 1 is inserted when the power of the disk device 100 is turned off, a part of the optical disk 1 can be ejected to the extent that it can be picked up from the disk device 100, and the optical disk 1 cannot be taken out from the inside of the disk device 100. Can be avoided.

The first bottom surface side small-diameter transmission gear 421A2 of the male gear 421A of the first transmission gear 421 is engaged with the shift drive branch gear 422. For this reason, both the roller 513 and the first shift cam 71 can be operated by a single drive motor 41, and it is not necessary to use separate motors to operate each of them. Miniaturization of the device 100 can be promoted. Further, since the first transmission gear 421 can transmit the driving force to the first shift cam 71 even when the roller 513 is idling, even if the roller 513 is idly rotated, the operation of conveying the optical disc 1 is performed. The optical disk 1 can be smoothly ejected without increasing the time from the start to the completion of the operation.
[Modification of Embodiment]
Note that the present invention is not limited to the above-described embodiment, and includes the following modifications as long as the object of the present invention can be achieved.

  That is, in the above embodiment, the disk device 100 is exemplified as a thin disk device that can be mounted on a notebook personal computer or the like. However, the disk device 100 is not limited to this, and for example, a relatively large disk device mounted on a desktop personal computer or the like. The present invention can also be applied to a disk device.

In the above embodiment, when the control circuit unit detects that the first switch SW1 is turned off during the carry-out operation of the large-diameter disk 1A, the control motor unit reverses the drive motor 41 for a predetermined time, and during the carry-out operation of the small-diameter disk 1B. When it is detected that the switch SW2 is turned off, the drive motor 41 is delayed for a predetermined time and then reversely controlled for a predetermined time to return the first transmission gear 421 to the initial state. Not exclusively.
For example, the control circuit unit may perform a control to apply a weak voltage to the drive motor 41 to return the first transmission gear 421 to the initial state. Here, the weak voltage means that the gear pin 421A3 can move in the gear engagement groove 421B2 by the driving force of the drive motor 41, but the gear pin 421A3 contacts the first gear locking portion 421B3. After that, the first pinion portion 421B3 is pushed out by the gear pin 421A3, and the voltage is such that the female gear 421B cannot be rotated. In such a configuration, since the female gear 421B does not rotate even if the drive motor 41 is driven more than the time required for the gear pin 421A3 to move between both ends of the gear pin engaging groove 421B2, the unloaded optical disk 1 Can be avoided. Further, since the drive motor 41 can be driven in reverse for a sufficient time, the gear pin 421A3 can be reliably brought into contact with the first gear pin locking portion 421B3. Therefore, the roller 513 can be idled by a sufficient amount until the gear pin 421A3 reaches the second gear locking portion 421B4 from the first gear locking portion 421B3 when the insertion of the optical disc 1 is started. In addition, since a constant idling amount can always be ensured, the insertion feeling can be stably improved.

In addition, the control circuit unit detects the carry-out state of the optical disc 1 by the first switch SW1 and the second switch SW2, and performs control to return the first transmission gear 421 to the initial state. An infrared sensor may be provided in the vicinity of the discharge port 14, and the conveyance state of the optical disk 1 may be detected by the infrared sensor and the drive motor 41 may be driven in reverse.
Furthermore, the timing for driving the drive motor 41 to be reversed is not particularly limited as long as the center hole of the optical disc 1 is ejected to the outside from the insertion / ejection port 14. For example, the optical disc 1 is completely inserted into the insertion / ejection port 14. Then, the drive motor 41 may be reversely driven to return the first transmission gear 421 to the initial state.

And although the 1st transmission gear 421 which connects the worm gear 411 and the roller drive branch gear 423 was illustrated as a connection means, it is not restricted to this. That is, any gear that transmits a driving force from the drive motor 41 to the roller 513 may be used. For example, the roller drive branch gear 423 may include a male gear and a female gear that can rotate relative to each other.
Further, in addition to the gears constituting the drive transmission gear group 42, for example, an idling mechanism may be provided on the shaft of the roller 513 of the loading arm 51, and the roller 513 may idly rotate with respect to the fourth roller driving gear 512D.

  Further, in the above-described embodiment, the configuration in which the roller 513 is idled by causing the female gear 421B of the first transmission gear 421 to idle with respect to the male gear 421A has been shown as the connecting means, but is not limited thereto. . For example, the connecting means drives the drive motor 41 when the drive motor 41 is separated from the drive transmission gear group 42 for a predetermined time from the start of loading of the optical disc 1 and, for example, it is detected that the first switch SW1 is turned on. A configuration in which the drive motor 41 is driven by being connected to the transmission gear group 42 may be employed. Even in such a configuration, the roller 513 can be idled at the start of loading of the optical disc 1, so that the feeling of inserting the optical disc 1 can be improved.

  Further, the connecting means may be configured to move any one of the gears constituting the drive transmission gear group 42, for example, the second transmission gear 424, for example, in the vertical direction. That is, the engagement state between the first transmission gear 421 and the roller drive branch gear 423 is released by moving the roller drive branch gear 423 to the bottom surface side, for example, for a predetermined time from the start of loading of the optical disc 1, thereby driving force. Is not transmitted to the roller 513. When the first switch SW1 is turned on, the roller drive branch gear 423 is moved, for example, to the top surface side, and the first transmission gear 421 and the roller drive branch gear 423 are engaged, so that the driving force is reduced to the roller. The state is transmitted to 513. Even in such a configuration, the roller 513 can be idled when the loading of the disk 1 is started, so that the feeling of inserting the optical disk 1 can be improved.

  In addition, although the configuration in which the roller 513 is provided at the tip of the loading arm 51 is shown, for example, the roller is provided in the left-right direction on the top surface side of the housing 10 in the vicinity of the insertion / extraction port 14. May be. Even in this case, when the optical disk 1 starts to be loaded, the roller can idle in the direction in which the optical disk 1 is loaded, so that the feeling of inserting the optical disk 1 can be improved.

In the above embodiment, the male gear 421A is provided with the gear pin 421A3 and the female gear 421B is provided with the gear pin engaging groove 421B2. For example, the female gear 421B protrudes toward the male gear 421A. The gear pin engaging groove may be provided, and the gear pin engaging groove may be provided in the male gear 421A.
Further, the configuration is not limited to the configuration in which the gear pin 421A3 of the male gear 421A is engaged with the gear pin engaging groove 421B2 of the female gear 421B. For example, the first transmission gear 421 is a first gear that engages with the worm gear 411 and the shift branch gear 422, is coaxial with the first gear, and faces the top surface side of the first gear, and engages with the roller branch gear 423. The first gear and the second gear may be provided with ribs that can contact each other on surfaces facing each other. In such a configuration, the first roller and the second gear are relatively rotated from the state in which the ribs provided on the gears are in contact with each other in the direction in which the ribs are separated from each other, thereby emptying the transport roller 513. It is possible to make it around.

  Moreover, although the structure which provided the gear pin latching | locking part 421B3 in the both ends of the arc-shaped gear pin engaging groove 421B2 was shown, for example, a gear pin latching is carried out in the state which obstruct | occludes a groove in a part of ring-shaped gear pin engaging groove. It is good also as a structure which fixes a member.

  In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like within a range in which the object of the present invention can be achieved.

[Effect of the embodiment]
As described above, in the disk device 100 of the above embodiment, the drive motor 41, the roller 513 that is rotationally driven by the driving force of the drive motor 41, and transports the optical disk 1, and the roller 513 when the optical disk 1 is unloaded. Includes a first transmission gear 421 that is in a state in which the drive of the drive motor 41 is transmitted after being rotated by a predetermined angle in the loading direction for loading the optical disc 1.
For this reason, when the optical disk 1 is manually pushed into the back surface 10D at the start of carrying-in of the optical disk 1 into the disk device 100, the roller 513 can be idled in the loading direction of the optical disk 1 by a predetermined angle. Therefore, even when no driving force is transmitted from the drive motor 41 to the roller 513 and each gear of the drive transmission gear group 42 is mechanically locked, the optical disk 1 can be easily moved in the loading direction by the idle rotation of the roller 513. It can be inserted and the feeling of insertion can be improved. Therefore, the operability when inserting the disk device 100 can be improved.

It is a top view which shows the internal structure in the initial state of the disc apparatus of one Embodiment which concerns on this invention. It is a top view which shows the structure of the carrying-in part of the disc apparatus in the said embodiment, and a carrying-out part. It is a top view which shows the structure of the drive part of the disc apparatus in the said embodiment, a carrying-out part, and a clamp part. It is a front view of the decorative board in the embodiment. It is a top view which shows the vicinity of the drive part in the said embodiment. It is a perspective view which shows the structure of the 1st transmission gear which comprises the drive part in the said embodiment. It is sectional drawing of the sub loading arm in the said embodiment. It is a side view in the state which looked at the front end side from the base end side of the sub loading arm in the embodiment. It is a top view which shows a part of link plate of the disc apparatus in the said embodiment. It is a top view of the back side of the 1st shift cam which comprises the clamp part of the disc apparatus in the said embodiment. It is the side view which looked at the 1st shift cam in the embodiment from the left wall side. It is a side view of the emergency lever vicinity of the emergency mechanism in the embodiment. It is a top view which shows the inside of the disc apparatus in the motor drive start state of a large diameter disc. It is a top view which shows the inside of the disc apparatus in the middle of carrying in of a large diameter disc. It is a top view which shows the inside of the disc apparatus in the cam extrusion start state of a large diameter disc. It is a top view which shows the inside of the disc apparatus in the completion state of carrying in of a large diameter disc. It is a top view which shows the outline of the engagement state of the 1st shift cam in a completion state of carrying in of a large diameter disc, a link plate, and a loading slide plate. It is a top view which shows the inside of the disc apparatus at the time of the performance possible state of a large diameter disc. It is a top view which shows the outline of an emergency operation tool. It is a side view of an emergency lever in emergency operation. It is a top view which shows the inside of the disc apparatus in the motor drive start state of a small diameter disc. It is a top view which shows the inside of the disc apparatus in the cam extrusion start state of a small diameter disc. It is a top view which shows the inside of the disc apparatus in the completion state of carrying in of a small diameter disc. It is a top view which shows the outline of the engagement state of the 1st shift cam, link plate, and loading slide plate in the completion state of carrying in of a small diameter disc. It is a top view which shows the inside of the disc apparatus at the time of the performance possible state of a small diameter disc. It is a figure which shows typically the conveyance path | route of a small diameter disc when a small diameter disc is inserted from the left wall side. It is a figure which shows typically the conveyance path | route of a small diameter disc when a small diameter disc is inserted from the right wall side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Optical disk as recording medium 1A ... Large diameter disk as recording medium 1B ... Small diameter disk as recording medium 10 ... Housing 14 ... Insertion / ejection port 20 ... Disc processing part 24 as holding means 24 ... Information processing part 30 ... Disc Conveying means as a conveying device 41... Drive motor as a driving means 411. Worm gear as a drive side gear constituting a drive transmitting portion 42... Drive transmitting gear group constituting a drive transmitting portion 421. 421A: male gear as a first gear 421A3: gear pin as an engagement pin 421B ... female gear as a second gear 421B2 ... gear pin engagement groove as an arc groove 422 ... shift drive branch gear 423 as a cam drive member ... Roller drive branch gear as roller side gear 51 ... Loading arm 71 ... Roller driving unit 513 constituting the first shift cam 100 ... disk drive 512 ... drive transmitting portion of the arm member ... roller

Claims (10)

The disk-shaped recording medium has a longitudinal insertion / removal port into which the recording medium can be inserted / removed, and is provided inside a housing in which holding means for holding the recording medium carried in from the insertion / removal opening is housed. A disk transport device for carrying two types of recording media having different diameters into the housing, a large-diameter recording medium as a medium, and a small-diameter recording medium having a smaller engagement dimension than the large-diameter recording medium,
Driving means for generating a driving force;
In the vicinity of one end side in the longitudinal direction of the insertion / extraction port inside the casing, the base end side is pivotally supported inside the casing, and the tip end side is provided so as to be able to advance and retreat in the conveyance path of the recording medium. A loading arm;
Provided at the tip portion of the loading arm, is rotated by a driving force of said driving means, a roller for conveying the pre-crisis recording medium,
It is provided at a position facing the loading arm across the transport path, and is pivotally supported in the vicinity of the other end side in the longitudinal direction of the insertion / extraction port inside the casing so that the base end side can rotate inside the casing. A sub-loading arm whose front end side can be moved back and forth in the conveyance path of the recording medium and guides the loading of the recording medium by rotating together with the loading arm;
A loading slide plate formed longitudinally along the conveyance direction of the recording medium and movable along the conveyance direction of the recording medium in conjunction with the rotation of the loading arm at one end on the insertion / ejection port side; ,
In a plan view seen from a direction orthogonal to the conveyance surface of the recording medium, it is provided at a position that does not overlap the holding means and is connected to the other end side of the loading slide plate, and is moved by the movement of the loading slide plate. A link plate movably provided in a direction orthogonal to the transport direction;
Together provided the drive transmission means to transmit the driving force of said driving means to said roller, said roller, by being rotated a predetermined angle or more in the direction of carrying the recording medium inside the housing, wherein the drive means From the initial state where the recording medium is not inserted into the housing until the driving force of the driving means can be transmitted to the roller. A connecting means for allowing the roller to rotate idle ,
A control circuit unit that detects a movement of the link plate, and generates a driving force by driving the driving means when the movement of the link plate is detected by the switch;
Comprising
In the initial state, the loading arm is such that the roller is positioned in the conveyance path of the recording medium,
At least from the initial state until the loading arm is rotated by insertion of the recording medium, and the switch detects the movement of the link plate interlocked with the rotation of the loading arm from the initial state. A disk conveying device characterized in that the roller can be rotated freely during the operation . The disk transport device according to claim 1,
The drive transmission means includes a drive side gear connected to the drive means side and a roller side gear connected to the roller side, and the drive means is connected via the drive side gear and the roller side gear. Is transmitted to the roller,
The connecting means is configured to generate a driving force from the driving side gear by rotating the roller by a predetermined angle or more in a direction in which the recording medium is carried into a housing having an insertion / extraction port through which the recording medium is inserted and removed. A disk conveying device characterized in that it can be transmitted to the roller side gear. The disk transport device according to claim 1 or 2,
The coupling means is provided coaxially with the first gear coupled to the drive side gear and the first gear, and is provided so as to be able to rotate freely relative to the first gear by a predetermined angle. And a second gear coupled to the side gear. The disk transport device according to claim 3,
Either one of the first gear and the second gear includes an engagement pin protruding to the other side,
The other of the first gear and the second gear is provided with an arc groove that can engage with the engaging pin with the rotation axis of the first and second gear as a center point. apparatus. The disk transport device according to claim 4,
The engagement pin engages with the circular arc groove in a state where the roller can idle in the loading direction in which the recording medium is loaded when the recording medium is not inserted into the housing from the insertion / ejection port. A disc transport device characterized by that. A disk transport apparatus according to any one of claims 3 to 5,
A disk transport apparatus comprising: a reset unit that returns the coupling unit to an initial state in which the roller can idle in the loading direction in a state where the recording medium is ejected from the housing. The disk transport device according to claim 6,
The reset means recognizes that the recording medium has been carried out of the housing by detecting the conveyance state of the recording medium and the conveyance detection means, and drives the driving means to at least A control circuit unit that controls to rotate the first gear relative to the second gear so as to return to the initial state so that the roller can idle in the loading direction for loading the recording medium. Disc transport device characterized by that. A disk transport device according to any one of claims 3 to 7,
Holding means for holding the recording medium carried by the roller;
A cam member for moving the holding means forward and backward with respect to the recording medium,
The disk transport device according to claim 1, wherein the first gear is engaged with a cam driving member that transmits a driving force to the cam member. A disk transport device according to any one of claims 1 to 8,
A longitudinal loading arm that is provided in the vicinity of the insertion / extraction port of the housing and is capable of advancing and retracting one end side with respect to the conveyance path of the recording medium,
The disk transport device, wherein the roller is provided on the one end side of the loading arm. A disk transport device according to any one of claims 1 to 9,
And the housing provided with the insertion-ejection opening for loading and unloading the recording medium,
Said holding means for holding said recording medium which is carried in the housing,
An information processing unit that performs at least one of a reading process of reading information recorded on the recording medium held by the holding unit and a recording process of recording information on the recording medium;
A disk apparatus comprising:

Images