JP2008140510A - Disk ejection mechanism, disk transfer unit, and disk drive - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk ejection mechanism which can suitably prevent an eject position from fluctuating when ejecting a disk recording medium, and also provide a disk transfer unit and a disk drive thereof. <P>SOLUTION: The disk ejection mechanism has a driver 40 to generate drive power, a loading arm 51, and a step 433 as a regulator. The loading arm 51 is driven by the drive power from the driver 40 with its base side supported in the case 10 so as to be freely turnable and its tip side possible to come in contact with the side of the optical disk 1 housed in the case 10. The tip side turns toward the eject hole 14 while keeping in contact with the side of the disk 1 to be ejected through the eject hole 14. The step 433 is formed projecting within the range the loading arm 51 turns and comes in contact with loading arm 51 at a position where the optical disk 1 is ejected out by a predetermined distance from the eject hole 14 to regulate the turn of the loading arm 51. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention provides a disk ejection mechanism that is provided inside a housing having an insertion / ejection port into which a disk-shaped recording medium can be inserted and ejected, and that ejects the recording medium accommodated in the housing from the insertion / ejection port, The present invention relates to a disk transport apparatus that includes the disk discharge mechanism and transports the recording medium, and a disk apparatus that includes the disk transport apparatus.

Conventionally, a disk device capable of storing a disk-shaped recording medium inside the device is known. (For example, refer to Patent Document 1).
The disk reproducing apparatus described in Patent Document 1 includes a transfer mechanism including a transfer motor, a transfer roller, and a transfer gear train, a center sensor, and left and right provided to the left and right of the center sensor, in the vicinity of the disk insertion opening in the chassis. A sensor and an outer sensor provided on the left and right outside of the left and right sensors are further provided. And it is provided with the control part which is connected to each of a transfer motor, a center sensor, a left-right sensor, and an outside sensor, and controls the drive of a transfer motor based on the signal from each sensor.

  Such a disc reproducing apparatus drives the transfer roller in the disc ejection direction when ejecting the disc from the chassis. During the ejection operation, both the left and right outer sensors operate for a large-diameter disk, and both the left sensor and the right sensor operate for a small-diameter disk. Near the end of the ejecting operation, the large-diameter disk is detached from the left and right outer sensors, and these sensors are inactivated, and the small-diameter disk is detached from the left sensor and the right sensor, and both of these sensors are deactivated. Thus, when each sensor becomes a non-operation state, a control part stops a transfer motor. As a result, the large-diameter disk or the small-diameter disk is ejected to the outside of the disk insertion slot and stopped at a predetermined ejection position.

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

However, in the conventional configuration such as the above-mentioned Patent Document 1, there is a possibility that the disc ejection position may vary. That is, the disk ejection position is affected by factors such as the mounting positions of the left and right sensors and the outer sensor, the tolerance of parts such as the transfer roller and the transfer gear train, and the time constant of the transfer motor. In the conventional configuration, the control unit controls the drive of the transfer motor to eject the disc to a predetermined position. Therefore, the above factors are likely to vary, and thus the disc ejection position varies. There is a risk that.
If the disc ejection position varies in this way, the disc ejection amount is not constant and the appearance is not good, and there is a possibility that the user may have trouble in ejecting the disc. For example, when the disc discharge amount is insufficient and the disc is not ejected to the center hole of the disc, a problem that the user cannot take out the disc by inserting a finger into the center hole is difficult to handle.

  The present invention relates to a disk discharge mechanism that can suitably prevent variations in the discharge position of a disk-shaped recording medium, a disk transfer apparatus that includes the disk discharge mechanism and transfers the recording medium, and a disk apparatus including the disk transfer apparatus One purpose is to provide

  The invention according to claim 1 is provided in a housing having an insertion / ejection port into which a disc-shaped recording medium can be inserted / extracted, and the recording medium accommodated in the housing is discharged from the insertion / ejection port. A disc ejecting mechanism for generating a driving force, driven by a driving force from the driving unit, a base end side being pivotally supported inside the housing, and a distal end side being inside the housing The recording medium can be brought into contact with the peripheral edge of the recording medium accommodated in the recording medium, and the recording medium is inserted and ejected by rotating toward the insertion / ejection port side with the tip end in contact with the peripheral edge. An arm to be ejected from the mouth, and a state protruding from the rotation path of the arm, the recording medium comes into contact with the arm at a position where a predetermined amount is ejected from the insertion / ejection port, and the arm is rotated. And a regulating section for regulating the disc. A discharge mechanism.

  According to an eighth aspect of the present invention, there is provided a disk transport device for transporting the recording medium, which is provided in a housing having an insertion / extraction port through which a disk-shaped recording medium can be inserted and removed. Item 8. A disc discharge mechanism according to any one of Items 7 and a disc carry-in means for carrying the recording medium inserted into the housing from the insertion / ejection opening into the housing. It is a disk transport device.

  According to a tenth aspect of the present invention, there is provided a housing having an insertion / extraction port through which a disk-shaped recording medium can be inserted / extracted, and a disk transport device according to the eighth or ninth aspect, provided inside the housing. Holding means provided inside the casing and holding the recording medium carried into the casing by the disk transport device in a state where information recorded on the recording medium can be processed, and the casing Information processing for performing at least one of a reading process for reading information recorded in the recording medium held in the holding unit and recorded in the recording medium, and a recording process for recording information in the recording medium A disk device characterized by comprising:

  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 plan view showing the vicinity of the drive unit 40 in the embodiment. FIG. 5 is a plan view showing a state in which the cover member in the vicinity of the drive unit 40 in the embodiment is removed. FIG. 6 is a perspective view showing the configuration of the first transmission gear that constitutes the drive unit. FIG. 7 is an exploded perspective view of the locking mechanism in the embodiment. FIG. 8 is a diagram illustrating a biasing force related to the guide mechanism in the embodiment. FIG. 9 is a diagram illustrating a biasing force related to the guide mechanism in a state where the guide arm is further rotated counterclockwise from the state of FIG. FIG. 10 is a diagram illustrating the urging force related to the guide mechanism in a state where the guide arm is further rotated counterclockwise from the state of FIG. 9. FIG. 11 is a diagram illustrating an urging force related to the guide mechanism in a state where the guide arm is further rotated counterclockwise from the state of FIG. 10. FIG. 12 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. 13 is a side view of the first shift cam in the embodiment as viewed from the left wall side.

[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. Reading processing for reading out the recorded information and recording processing for recording various information on the recording surface. 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 illustrated. However, the present invention is not limited to this, and for example, a game machine, a so-called video device that performs recording / playback processing of video data, or the like. 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 substantially box-shaped housing 10 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 back 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. . Further, 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 can be connected to an external device such as a personal computer external to the disk device 100, for example, and transmits / receives various information from the external device or a plug to which power is supplied is connected.

  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 as a disk holding portion 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 central 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 as a drive unit, a carry-in unit 50, a carry-out unit 60, a disc clamp unit 70, and the like.

  As shown in FIGS. 1, 4, 5, and 6, 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 and a drive transmission gear group 42.

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 step wall 13 serving as a dead space due to the arrangement of 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. Further, a worm gear 411 is provided at the tip of the rotation shaft, and the worm gear 411 transmits the rotational driving force to the drive transmission gear group 42.

  The drive transmission gear group 42 includes a first transmission gear 421, a shift drive branch gear 422, a roller drive branch gear 423, a second transmission gear 424, and a cam shift gear 425.

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

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. On the top surface side of the male gear 421A, a gear pin 421A3 projects toward the female gear 421B in the vicinity of 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 having substantially the same diameter as the first bottom surface side small diameter transmission gear 421A2 on the top surface side.
The female gear 421B has a substantially arc-shaped gear pin engaging groove 421B2 formed in the vicinity of the outer peripheral edge on the bottom surface side. Further, a gear pin engaging portion 421B3 is provided in a part of the gear pin engaging groove 421B2.
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 gear pin engaging portions 421B3 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 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 includes a large diameter roller drive branch gear 423A having a large diameter, and a small diameter roller drive branch gear 423B that is coaxial with the large diameter roller drive branch gear 423A and is provided integrally on the top surface side. Yes. The large diameter roller drive branch gear 423A is meshed with the first top surface side small diameter transmission gear 421B1 of the first transmission gear 421, and the small diameter roller drive branch gear 423B is meshed with the second transmission gear 424. Thereby, the roller drive branch gear 423 transmits the rotational driving force transmitted from the first transmission gear 421 to the second transmission gear 424. The roller drive branch gear 423 is provided on the back surface of the cover member 43 at substantially the same height as the bottom surface of the wing portion 12. As a result, a space is formed between the bottom surface of the roller drive branch gear 423 and the bottom surface of the housing body 11, and this space is a moving path of the first shift cam 71.

  The second transmission gear 424 is provided on the top surface side of the cover member 43. The second transmission gear 424 is meshed with a small-diameter roller drive branch gear 423B and a loading arm 51 (to be described later) of the carry-in unit 50. As a result, the rotational driving force transmitted from the roller driving branch gear 423 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, that is, between the housing main body 11 and the first shift cam 71, and the pinion gear 425B is formed on the end surface of the first shift cam 71. It is provided in the forward / backward movement path of a rack 711A 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 disc clamp portion 70.
Further, a grip surface 425C is formed on the bottom surface side of the cam shift gear 425. The grip surface 425C is formed, for example, by sticking a substantially ring-shaped felt on the bottom surface side of the cam shift gear 425.

Further, a lock arm 426 is rotatably provided on the bottom side of the cam shift gear 425 as shown in FIG. The lock arm 426 is formed in a longitudinal plate shape, and a friction rotating portion 426A is formed at one longitudinal end.
The friction rotation portion 426A has a friction contact surface 426B protruding toward the grip surface 425C and a hole portion through which the rotation shaft of the cam shift gear 425 is inserted. The lock arm 426 rotates in the rotational direction of the cam shift gear 425 by frictional force when the frictional contact surface 426B contacts the grip surface 425C.
Further, a lock pin 426D that protrudes toward the top surface is provided at the other longitudinal end of the lock arm 426. The lock pin 426D is engaged with a first shift cam 71, which will be described later, and restricts the movement of the first shift cam 71.
In addition, although the example in which the grip surface 425C is formed by attaching felt is shown, for example, a configuration in which a member such as rubber for increasing the frictional force is attached may be used, and unevenness is formed on the bottom surface side of the large-diameter shift gear 425A. A configuration in which the frictional force is increased by forming a shape or the like may be employed. Moreover, it is good also as a structure which affixes a felt etc. on the top | upper surface side of the friction rotation part 426A of the lock arm 426, and forms a grip surface.

  And the cover member 43 is provided in the top | upper surface side of the drive part 40, as shown in FIG. 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 includes a front-side cover portion 431 disposed on the front surface 10A side, and a back-side cover portion 432 disposed on the back surface 10D side with respect to the front-side cover portion 431. The front cover portion 431 is arranged such that the top surface side is closer to the top surface than the bottom surface of the wing portion 12. On the other hand, the back surface side cover portion 432 has a top surface on the substantially same plane as the bottom surface of the wing portion 12. A stepped portion 433 serving as a restricting portion is provided between the front side cover portion 431 and the back side cover portion 432. The step 433 is formed in a longitudinal shape in the left-right direction (the direction from the left wall 10B toward the right wall 10C) on the back surface 10D side of the roller drive branch gear 423.

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 disc ejection mechanism according to the present invention includes a drive unit 40, a stepped portion 433, and a loading arm 51.

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. The roller 513 corresponds to the disk carry-in means and the rotating member in the present invention.
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 unit 512 provided in the loading arm main body 511, and the above-described roller 513.

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 back side cover portion 432 of the cover member 43 described above, and the step portion 433 of the cover member 43 in a state where the loading arm 51 is closest to the insertion / extraction port 14 (initial state). Abut. That is, the loading arm 51 is restricted from rotating from the position where the stopper piece 511 </ b> C and the stepped portion 433 come into contact to the insertion / exhaust 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 driving gear 512C meshed with the second roller driving gear 512B. The first roller drive gear 512 </ b> A is engaged with the second transmission gear 424 of the drive unit 40, and the driving force is transmitted from the drive unit 40. The third roller drive gear 512C is meshed with the roller 513 and transmits the driving force transmitted from the drive unit 40 via the first and second roller drive gears 512A and 512B to the roller 513.

  The first to third roller drive gears 512A, 512B, and 512C 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 third roller drive gears 512A, 512B, and 512C are set so as not to interfere with the wing portion 12 during rotation.

  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 third roller driving gear 512C and is rotated by the rotational driving of the third roller driving 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 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 from the back surface 10D side on the left wall 10B side toward the front surface 10A side of the right wall 10C. 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.
The sub-loading arm 53 is formed with a sliding groove 531 facing the transport surface of the optical disc 1 from the base end portion to the tip end portion. When the optical disk 1 is transported, the sliding groove 531 abuts on the periphery of the optical disk 1 to guide the transport. Further, a tongue-shaped guide portion 532 that is substantially parallel to the bottom surface of the housing 10 is provided at the bottom side edge of the sliding groove 531, and the conveyance is guided while holding the bottom surface side of the optical disk 1.

  A sub arm guide pin 533 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 533 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 the sub arm guide pin 533 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 533 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.
The urging means in the present invention includes a spring (not shown), a sub-arm slide plate 541, a link plate 55, and a loading link mechanism 52. The loading arm 51 is moved to the front by the urging force from the spring. It is biased to the 10A side.

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. A plate link pin 541F of the sub arm slide plate 541 is engaged with the slide link groove 552. When the link plate moves in the left-right direction, the plate link pin 541F also moves along the slide link groove 552, and the sub arm slide plate 541 moves in the front-rear direction. That is, the loading arm 51 and the sub-loading arm 53 are moved forward and backward with respect to the conveyance path of the optical disc 1 by the loading slide plate 522, the link plate 55, and the sub-arm slide plate 541.

  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 restricting / engaging portion 553B, the large-diameter disk 1A can be clamped and held on 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 so that the information processing unit 24 can 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 1BA turntable 23 is held and the information processing unit 24 can 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 to the bottom surface side, and is engaged through a ring-shaped sliding member made of synthetic resin. 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 are provided with the first switch SW1 as the second detection means provided in the control circuit unit disposed on the bottom surface of the housing 10 and the first detection means as the first detection means by the right and left movement of the link plate 55. The on / off states of the two switches SW2 are switched.

  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 to be in the ON state. In this ON state, the reference voltage supplied from the control circuit unit is set. 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 the 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 left 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, as shown in FIG. 8, the guide connection shaft 562 </ b> B has a direction from the spring hook pin 561 </ b> B toward the guide connection shaft 562 </ b> B (spring corresponding biasing direction) due to the biasing of the guide plate 561 by the guide spring 563. The power to is always generated. 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.
Further, as the guide connecting shaft 562B is moved by the counter-clockwise rotation of the guide arm 562 and approaches a state where the guide connecting shaft 562B is positioned on the reference line segment from the right side position state (line segment upper position state), FIG. As shown, the guide plate 561 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, as shown in FIG. 10, the guide plate 561 moves to the position closest to the back surface 10D, and the spring force of the guide spring 563 is maximized, and the force in the spring corresponding biasing direction is also maximized. It becomes. 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 the state where the guide connecting shaft 562B is positioned on the left wall 10B side from the reference line segment (left side position state), as shown in FIG. 11, the angle formed by the moving direction during rotation and the spring-corresponding biasing direction is A sharp 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. . These first and second eject arms 61 and 62 have a first disk contact portion 612 and a second disk contact portion 622, a roller 513 of the loading arm 51 and a tongue-shaped guide portion 532 of the sub-loading arm 53, and a guide arm. The peripheral edge of the optical disc 1 (1A, 1B) is held and conveyed by the disc guide portion 562C of 562.

  Next, the configuration of the disc clamp unit 70 will be described. As shown in FIGS. 1, 3, 12, and 13, 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 as a slide member, 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 rack 711A is loaded with the loading end edge of the optical disc 1 being moved to the back surface 10D side from the insertion / extraction port 14. And the pinion gear 425B are engaged.

Further, a lock engagement groove 711 </ b> B as a lock engagement portion is formed on a surface facing the bottom surface of the housing main body portion 11 on the front surface 10 </ b> A side of the cam main body portion 711. The lock engagement groove 711B includes a longitudinal engagement portion 711B1 that is elongated along the front-rear direction, and a lock portion 711B2 that is formed from the front 10A side end of the longitudinal engagement portion 711B1 toward the left wall 10B portion. It is equipped with.
A lock pin 426D of the lock arm 426 is engaged with the lock engagement groove 711B. When the drive motor 41 is driven to rotate the cam shift gear 425, the lock arm 426 is also rotated by the frictional force, and the engagement position of the lock pin 426D is also moved.
That is, when the cam shift gear 425 rotates in the clockwise direction in the initial state where the first shift cam 71 is located closest to the back surface 10D, the lock pin 426D moves from the lock portion 711B2 to the longitudinal engagement portion 711B1, and the first shift cam 71 becomes movable in the front-rear direction. On the other hand, when the cam shift gear 425 rotates counterclockwise with the first shift cam 71 positioned closest to the back surface 10D, the lock pin 426D moves to the lock portion 711B2 and restricts the movement of the first shift cam 71. It becomes locked.

Further, as shown in FIG. 13, a clamp raising / lowering 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 state part 714D, and these grooves are formed continuously.
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 a position substantially the same as the height at which the disc processing unit 20 can process the information on the optical disc 1. In the standby unit 714B, position correction between the center hole of the optical disc 1 and the turntable 23 is performed.
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 performance state portion 714D is formed on the back surface 10D side of the clamp portion 714C. When the clamp raising / lowering pin 21 </ b> C is engaged with the performance state unit 714 </ b> D, the information processing unit 24 enters a performance state in which information on the optical disk 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. 12, 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, an 8 cm disc cam groove 716B, and a 12 cm disc 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. The 8 cm disc cam groove 716B 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 12 cm disc cam groove 716 </ b> C is formed continuously from the standby groove 716 </ b> A and is formed from the left wall 10 </ b> B side of the standby groove 716 </ b> A toward the back surface 10 </ b> D. A cam control pin 556 of the link plate 55 is inserted into the cam groove 716.

  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, so that the amount of rotation of the select arm 713 is also small, and the first pushing wall 713C is moved to the front 10A by the cam pushing pin 613. 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.

[Disk unit operation]
Next, the operation of the disk device will be described with reference to the drawings.
FIG. 14 is a plan view showing the inside of the disk device in the motor drive start state of the large-diameter disk. FIG. 15 is a plan view showing the inside of the disk device in the middle of loading a large-diameter disk. FIG. 16 is a plan view showing the inside of the disk device in the cam extrusion start state of the large-diameter disk. FIG. 17 is a plan view showing the inside of the disk device when 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 the inside of the disk device in a motor driving start state of the small-diameter disk. FIG. 20 is a plan view showing the inside of the disk device in the cam extrusion start state of the small-diameter disk. FIG. 21 is a plan view showing the inside of the disk device in a state where the small-diameter disk has been loaded. FIG. 22 is a plan view showing the inside of the disk device when the small-diameter disk can be played.

(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 the large-diameter disk 1A is inserted from the insertion / extraction port 14 of the disk apparatus 100 in the initial state, the peripheral portion of the large-diameter disk 1A slides between the roller 513 of the loading arm 51 and the sub-loading arm 53. It abuts on the groove 531.
In this state, when the large-diameter disc 1A is further inserted into the back surface 10D, the loading arm 51 rotates 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 rotates counterclockwise in the gear pin engaging groove 421B2 of the female gear 421B to the gear pin locking portion 421B3. It is in a contact state. Therefore, when the gear pin 421A3 of the male gear 421A rotates clockwise and comes into contact with the other gear pin locking portion 421B3, the female gear 421B is in a state where driving force is transmitted from the male gear 421A. It is rotationally driven by the driving force of the drive motor 41.

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.
The turning position of the loading arm 51 when the second switch SW2 is turned on corresponds to the first position in the present invention.

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. 14, the switch piece 557 of the link plate 55 is connected to the first switch SW1 with the inner peripheral edge of the center hole of the large-diameter disk 1A in the carry-in direction 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). As a result, the driving force of the drive motor 41 is transmitted from the drive transmission gear group 42 to the roller 513 of the loading arm 51, and the roller 513 is rotationally driven in the direction in which the large-diameter disk 1A is carried, that is, in the clockwise direction. Since the peripheral portion of the large-diameter disk 1 </ b> A is in contact with the roller 513, the large-diameter disk 1 </ b> A is pulled into the disk device 100 by the driving force of the roller 513.
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.
Note that the rotation position of the loading arm 51 in the motor driving start state corresponds to the second position in the present invention.

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 of the large-diameter disk 1A in the carrying-in direction 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 disk 1A is further carried into the disk device 100, the roller 513 of the loading arm 51 and the sliding groove 531 of the sub-loading arm 53 sandwich the maximum diameter portion of the large-diameter disk 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. 15, 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 disc 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 within the cam groove 716 of the slide plate 712 to the connection position between the standby groove 716A and the 12 cm disc cam groove 716C.

Further, since the cam shift gear 425 of the drive transmission gear group 42 is rotated in the clockwise direction by the driving force of the drive motor 41, the lock arm 426 is also urged in the clockwise direction by the frictional force, and the lock pin 426D is The lock engagement groove 711B 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 cam groove 716C for the 12 cm disc.
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.

  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 disk 1A is further carried into the back surface 10D side and the center hole of the large-diameter disk 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. In this state, the large-diameter disk 1 </ b> A is composed of the roller 513 of the loading arm 51, the sliding groove 531 of the sub-loading arm 53, the first disk contact portion 612 of the first eject arm 61, and the second of the second eject arm 62. It is held by the disc contact portion 622.

Then, when the first shift cam 71 is further 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 unit 21 is temporarily stopped at the height position corresponding to the standby unit 714B, and the position correction between the center hole of the optical disc 1 and the disc engaging portion 23A of the turntable 23 is performed.

  Further, when the first shift cam 71 moves to the front 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 performance state 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.

  During this clamping operation, the cam control pin 556 passes through the 12 cm disc cam groove 716C. As a result, the link plate 55 is further moved to the left wall 10B, and the eject pin 611 is moved from the large diameter restricting / engaging portion 553B to the large diameter separation / engaging portion 553D. That is, the first and second eject arms 61 and 62 are rotated to the back surface 10D side so that the first and second disc contact portions 612 and 622 are separated from the peripheral portion of the large-diameter disc 1A.

  Further, the movement of the link plate 55 causes the loading arm 51 and the sub-loading arm 53 to rotate to the vicinity of the right wall 10C and the vicinity of the left wall 10B, respectively, and the roller 513 and the sliding groove 531 are separated from the peripheral edge of the large-diameter disk 1A. To do.

  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 the operation to carry out, the control circuit unit first drives the drive motor 41 of the drive unit 40 to move the first shift cam 71 to the back surface 10D side. Due to the movement of the first shift cam 71 toward the back surface 10D, the third switch SW3 is turned off.
At this time, in the first transmission gear 421, the gear pin 421A3 provided on the male gear 421A is rotated in the clockwise direction in the gear pin engaging groove 421B2 of the female gear 421B and is in contact with the gear pin locking portion 421B3. It has become. When the drive motor 41 is driven, the gear pin 421A3 moves in the counterclockwise direction along the gear pin engaging groove 421B2. Then, the male gear 421A of the first transmission gear 421 rotates idly with respect to the female gear 421B until the gear pin 421A3 contacts the gear pin locking portion 421B3. When the gear pin 421A3 comes into contact with the gear pin locking portion 421B3, the female gear 421B is in a state where the driving force is transmitted from the male gear 421A and is driven to rotate 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 along the cam groove 716C, and the link plate 55 moves toward the right wall 10C. 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 optical disc 1 is the roller 513, the sliding groove 531, the first and second discs. It is held by the 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. 14, when the large-diameter disk 1A is unloaded to the substantially same position (second position) as the motor drive start state, the switch piece 557 of the link plate 55 is separated from the first switch SW1 and controlled. The circuit unit stops driving of the drive motor 41. In this state, the large-diameter disk 1 </ b> A is in a state where 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 disk 1A is manually pulled out, the loading arm 51 is also urged counterclockwise and rotated because the sub-arm slide plate is urged toward the back surface 10D. Then, when the stopper piece 511 </ b> C contacts the stepped portion 433 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.

(Large-diameter disk carry-in operation when power is not supplied)
Next, an operation when the large-diameter disk 1A is inserted in a state where no electric power is supplied to the disk device 100 will be described.
When the large-diameter disk 1A is inserted from the insertion / extraction port 14 of the disk device 100 in the initial state, the peripheral portion of the large-diameter disk 1A is the roller of the loading arm 51, as in the above-described operation of loading the large-diameter disk 1A in the normal state. 513 and the sliding groove 531 of the sub-loading arm 53 abut.
In this state, when the large-diameter disc 1A is further inserted into the back surface 10D, the loading arm 51 rotates 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 rotates counterclockwise in the gear pin engaging groove 421B2 of the female gear 421B to the gear pin locking portion 421B3. It is in a contact state.
When the large-diameter disk 1A is inserted, the loading arm 51 is rotated to the right wall 10C side until the motor driving start state as shown in FIG.

At this time, the switch piece 557 pushes in the movable piece of the first switch SW1, but since the power is not supplied to the control circuit unit, the drive motor 41 is not driven. Therefore, since the cam shift gear 425 does not rotate, the lock arm 426 does not rotate, and the lock pin 426D remains engaged with the lock portion 711B2 of the lock engagement groove 711B. For this reason, the first shift cam 71 is in a locked state in which movement in the front-rear direction is restricted.
Further, the gear pin 421A3 of the first transmission gear 421 is rotated counterclockwise in the gear pin engaging groove 421B2 and is in contact with the gear pin locking portion 421B3. For this reason, the gears of the drive transmission gear group 42 mesh with each other and are locked, that is, a state against the loading of the large-diameter disk 1A.

In this state, for example, when the large-diameter disk 1A is forcibly inserted manually into the back surface 10D side, it is inserted to the cam extrusion start state as shown in FIG. When the large-diameter disc 1A is further inserted from this state, the carry-in terminal edge of the large-diameter disc 1A is inserted until reaching the insertion / extraction port 14, but the cam extrusion pin 613 pushes the second extrusion wall portion 713D of the select arm 713. However, as described above, the first shift cam 71 is in a locked state and does not move to the front surface 10A side.
Further, since the slide plate 712 is urged toward the back surface 10D by the urging spring 715 provided between the cam body 711 and the slide plate 712, the first eject arm 61 is rotated in the clockwise direction. Even so, the cam push pin 613 is pushed back to the back surface 10D side. Thereby, the urging force acts on the first eject arm 61 in the counterclockwise direction, that is, the direction in which the large-diameter disk 1A is ejected.

  Further, as described above, the gear pin 421A3 rotates counterclockwise and comes into contact with the gear pin locking portion 421B3, and can rotate freely in the direction of carrying out the large-diameter disk 1A. Yes. That is, the female gear 421B can idle in the counterclockwise direction with respect to the male gear 421A. As a result, even when the biasing force in the counterclockwise direction of the first eject arm 61 is small, the roller 513 rotates idly and the large-diameter disk 1A can be pushed out in the unloading direction.

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

As shown in FIG. 1, when the small-diameter disk 1B is inserted from 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 center hole loading direction is substantially positioned on the insertion / extraction port 14. In this state, the peripheral edge of the small-diameter disk 1 </ b> B comes into contact with the roller 513 of the loading arm 51 and the sliding groove 531 of the sub-loading arm 53.
When the small-diameter disk 1B is further inserted into the back surface 10D in this state, the loading arm 51 rotates to 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.

  As in the case of the large-diameter disc 1A loading operation, in the initial state, the first transmission gear 421 has the gear pin 421A3 provided on the male gear 421A counterclockwise in the gear pin engaging groove 421B2 of the female gear 421B. It is in the state which contact | abutted to the gear pin latching | locking part 421B3 by having rotated. Therefore, when the gear pin 421A3 of the male gear 421A rotates clockwise and comes into contact with the other gear pin locking portion 421B3, the female gear 421B is in a state where driving force is transmitted from the male gear 421A. It is rotationally driven by the driving force of the drive motor 41.

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.
Similar to the loading operation of the large-diameter disk 1A, the rotation position of the loading arm 51 when the second switch SW2 is turned on corresponds to the first position in the present invention.
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. 19, 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). As a result, the driving force of the drive motor 41 is transmitted from the drive transmission gear group 42 to the roller 513 of the loading arm 51, and the roller 513 is rotationally driven in the direction in which the small-diameter disk 1B is loaded, that is, in the clockwise direction. At this time, since the peripheral edge of the small-diameter disk 1B is in contact with the roller 513, the small-diameter disk 1B is pulled into the disk device 100 by the driving force of the roller 513.
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. .
Note that the rotation position of the loading arm 51 in the motor drive start state corresponds to the second position in the present invention, similarly to the operation of loading the large-diameter disk 1A.

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 as shown in FIG. Extrusion start state). Further, the movement of the link plate 55 causes the cam control pin 556 to move within the cam groove 716 of the slide plate 712 to the connection position between the standby groove 716A and the 8 cm disc cam groove 716B.

Thereafter, the cam push pin 613 pushes the first push wall portion 713C of the select arm 713 toward the front face 10A side by further turning the first eject arm 61.
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 cam groove 716B for 8 cm disc.
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 includes the roller 513 of the loading arm 51, the sliding groove 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.

Then, when the first shift cam 71 is further 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 unit 21 is temporarily stopped at the height position corresponding to the standby unit 714B, and the position correction between the center hole of the optical disc 1 and the disc engaging portion 23A of the turntable 23 is performed.

Further, when the first shift cam 71 moves to the front 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 performance state 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 disc 1B.
During this clamping operation, the cam control pin 556 moves to the left wall 10B side through the 8 cm disc cam groove 716B. As a result, the link plate 55 is further moved to the left wall 10B, and the eject pin 611 is moved from the small diameter restricting / engaging portion 553A to the small diameter separation / engaging portion 553C. That is, the first and second eject arms 61 and 62 are rotated toward the back surface 10D so that the first and second disc contact portions 612 and 622 are separated from the peripheral edge of the small-diameter disc 1B.

  Further, by the movement of the link plate 55, the loading arm 51 and the sub-loading arm 53 are also rotated to the vicinity of the right wall 10C and the vicinity of the left wall 10B, respectively, and the roller 513 and the tongue-shaped guide portion 532 are separated from the peripheral edge of the small-diameter disk 1B. To do.

  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. Thereby, as shown in FIG. 22, the control circuit unit recognizes that the small-diameter disk 1B has been clamped and is ready to be played, and stops the drive motor 41.

Then, the control circuit unit controls 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.

(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 the operation to carry out, the control circuit unit first drives the drive motor 41 of the drive unit 40 to move the first shift cam 71 to the back surface 10D side. Due to the movement of the first shift cam 71 toward the back surface 10D, the third switch SW3 is turned off.
At this time, in the first transmission gear 421, the gear pin 421A3 provided on the male gear 421A is rotated in the clockwise direction in the gear pin engaging groove 421B2 of the female gear 421B and is in contact with the gear pin locking portion 421B3. It has become. When the drive motor 41 is driven, the gear pin 421A3 moves in the counterclockwise direction along the gear pin engaging groove 421B2. The male gear 421A of the first transmission gear 421 rotates idly with respect to the female gear 41B until the gear pin 421A3 contacts the gear pin locking portion 421B3. When the gear pin 421A3 comes into contact with the gear pin locking portion 421B3, the female gear 421B is in a state where the driving force is transmitted from the male gear 421A and is driven to rotate 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 in the cam groove 716B, and the link plate 55 moves toward the right wall 10C. 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 groove 531, 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. 19, when the small-diameter disk 1B is unloaded to the substantially same position (second position) as the motor drive 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.
Note that the rotation position of the loading arm 51 when the second switch SW2 is turned off corresponds to the first position in the present invention.

  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 433 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 on the back surface 10D side of the center hole 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. 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. As a result, the guide arm 562 receives a biasing force in the clockwise direction and rotates to the initial state.

(Small-diameter disk loading operation when power is not supplied)
Next, an operation when the small-diameter disk 1B is inserted in a state where power is not supplied to the disk device 100 will be described.
When the small-diameter disk 1B is inserted from the insertion / extraction port 14 of the disk device 100 in the initial state, the peripheral portion of the small-diameter disk 1B is connected to the roller 513 of the loading arm 51 and the sub as well as the above-described operation of loading the small-diameter disk 1B in the normal state. It contacts the sliding groove 531 of the loading arm 53.
When the small-diameter disk 1B is further inserted into the back surface 10D in this state, the loading arm 51 rotates to 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 rotates 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 rotates counterclockwise in the gear pin engaging groove 421B2 of the female gear 421B to the gear pin locking portion 421B3. It is in a contact state.
When the small-diameter disk 1B is inserted, the loading arm 51 is rotated to the right wall 10C side until the motor driving start state as shown in FIG.
Further, the gear pin 421A3 of the first transmission gear 421 is rotated counterclockwise in the gear pin engaging groove 421B2 and is in contact with the gear pin locking portion 421B3. For this reason, the gears of the drive transmission gear group 42 mesh with each other and are locked, that is, a state against the loading of the small-diameter disk 1B.

When the small-diameter disk 1B is further inserted from this state, 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.
Here, the spring hook pin 561B, the guide connecting shaft 562B, and the guide rotation shaft 562A of the guide mechanism 56 are identical in the state where the small-diameter disk 1B is transported to the position where the loading completion state is located above the turntable 23. Parallel on the line. Therefore, in a state where the end edge of the small-diameter disc 1B in the carry-in direction enters the inside of the disc device 100 from the insertion / ejection port 14, the guide connecting shaft 562B is located at the right position. That is, the guide arm 562 is urged clockwise.

  Further, as described above, the gear pin 421A3 rotates counterclockwise and comes into contact with the gear pin locking portion 421B3, and is in a state in which it can idle in the direction of carrying out the small-diameter disk 1B. . That is, the female gear 421B can idle in the counterclockwise direction with respect to the male gear 421A. Thereby, even when the urging force of the guide arm 562 in the clockwise direction is small, the roller 513 rotates idly and the small-diameter disk 1B can be pushed out in the unloading direction.

[Effects of disc ejection mechanism, disc transport device, and disc device]
As described above, the disc ejection mechanism of the above embodiment is provided in the housing 10 having the insertion / ejection port 14 into which the optical disc 1 can be inserted and ejected, and the optical disc 1 accommodated in the housing 10 is inserted and ejected. Drain from the mouth 14. This disc ejection mechanism includes a driving unit 40 that generates a driving force, a loading arm 51, and a stepped portion 433 as a regulating unit. The loading arm 51 is driven by the driving force from the drive unit 40, the proximal end side is pivotally supported inside the housing 10, and the distal end side is in contact with the peripheral portion of the optical disc 1 accommodated inside the housing 10. The optical disc 1 is ejected from the insertion / ejection port 14 by rotating toward the insertion / ejection port 14 side with the tip end in contact with the peripheral edge. The step 433 is provided so as to protrude into the rotation path of the loading arm 51, contacts the loading arm 51 at a position where the optical disk 1 is ejected from the insertion / ejection port 14, and rotates the loading arm 51. To regulate.
Thus, in the operation of ejecting the optical disk 1 inside the housing 10, the loading arm 51 contacts the stepped portion 433 at a position where the optical disk 1 is ejected from the insertion / ejection port 14 by a predetermined amount. Thereby, since the rotation of the loading arm 51 is reliably regulated, for example, even if there is a variation in the mounting position of various sensors, the time constant of the drive motor 41, or the like, the ejection position of the optical disc 1 may vary. It can be surely prevented. Therefore, since the discharge amount of the optical disk 1 is always constant, the appearance is good, and for example, it can be reliably discharged to the center hole of the optical disk 1 so that the user can easily take out the disk.

The drive unit 40 is provided in the vicinity of the loading arm 51, and the outside is covered with a cover member 43. The step portion 433 serving as the restricting portion is formed in a step shape so that a part of the upper surface portion of the cover member 43 protrudes into the rotation path of the loading arm 51.
As described above, since the step portion 433 is provided on the cover member 43, the rotation of the loading arm 51 can be preferably restricted. Further, since the stepped portion 433 is formed by forming the upper surface portion of the cover member 43 in a step shape, the stepped portion 433 has a simple configuration, and the apparatus can be made compact and the manufacturing cost can be kept low.

In addition, the loading arm 51 is provided with a stopper piece 511 </ b> C that protrudes so as to come into contact with the stepped portion 433.
Accordingly, the stopper piece 511C can be reliably brought into contact with the stepped portion 433, so that the rotation of the loading arm 51 can be more reliably regulated.

Further, the stepped portion 433 is provided in a state of contacting the loading arm 51 when the center hole of the optical disc 1 is located outside the insertion / extraction port 14.
Thereby, since the center hole of the optical disk 1 comes out reliably outside the housing | casing 10, a user can hold | grip the optical disk 1 easily and can take out easily.

In addition, the disk ejection mechanism includes a roller 513 and biasing means (a spring suspended between the link pin 541D and a spring hook provided on the back side of the base plate 111, a sub arm slide plate 541, a link plate 55, Loading link mechanism 52). The roller 513 is provided in a state where it can be rotated by the driving force from the driving unit 40 at the tip end portion of the loading arm 51, and can be brought into contact with the peripheral edge portion of the optical disc 1 accommodated inside the housing 10. Then, the urging means urges the loading arm 51 in a direction in which the loading arm 51 is rotated toward the insertion / ejection port 14 side. In addition, the loading arm 51 is rotated by the driving force from the driving unit 40 in a state where the roller 513 is in contact with the peripheral portion of the optical disc 1, and the loading arm 51 side by the biasing force from the biasing means. To contact the stepped portion 433. Then, the drive unit 40 drives the roller 513 at least until the loading arm 51 contacts the stepped portion 433.
According to such a configuration, in the operation of ejecting the optical disc 1, even if the roller 513 is kept rotating for a while after the loading arm 51 comes into contact with the stepped portion 433, the loading arm 51 is moved by the stepped portion 443. Since the rotation is restricted, the roller 513 rotates idly. Therefore, by continuing to drive the roller 513 at least until the loading arm 51 abuts on the stepped portion 433, the loading arm 51 can be surely brought into contact with the stepped portion 433, and the drive motor 41 and the like are damaged. Can be prevented.
In the configuration in which the driving force from the driving motor 41 is directly transmitted to the loading arm 51 to rotate the loading arm 51, when the driving motor 41 is continuously driven after the loading arm 51 contacts the stepped portion 433, The drive motor 41 or the loading arm 51 may be damaged.

Further, the disk ejection mechanism described above includes the second switch SW2 that can detect that the loading arm 51 is located at the first position on the rear side in the ejection direction with respect to the stepped portion 433, and the detection means and the drive unit 40. And a control circuit unit serving as a control unit connected in a state where various signals can be transmitted and received. When the optical disc 1 is ejected, the control circuit unit controls the driving unit 40 to rotate the roller 513 until the loading arm 51 is located at the first position. Thereafter, the detection signal from the second switch SW2 is received, and the roller 513 is rotated at least for a predetermined time from when the loading arm 51 is positioned at a predetermined position until it contacts the stepped portion 433.
As described above, since the delay drive for rotating the roller 513 is performed for a predetermined time or more from when the loading arm 51 is positioned at the first position before contacting the stepped portion 433, the mounting position of the second switch SW2 and the drive motor Even if the time constant 41 or the like varies, the loading arm 51 can be reliably brought into contact with the stepped portion 433. Therefore, the ejection position of the optical disc 1 can be determined with certainty. In addition, by stopping the driving motor 41 after a predetermined time from before the loading arm 51 comes into contact with the stepped portion 433, it is possible to prevent the driving motor 41 from continuing to be driven indefinitely. Disc ejection operation can be realized.

The loading arm 51 can eject both the large-diameter disk 1A, which is the large-diameter optical disk 1, and the small-diameter disk 1B, which is the smaller-diameter optical disk 1 than the large-diameter disk 1A, from the insertion / extraction port 14. . The stepped portion 433 is provided in a state of contacting the loading arm 51 at a position where the small-diameter disk 1B is ejected from the insertion / ejection port 14 by a predetermined amount. Further, as the detection means, the second switch SW2 capable of detecting that the loading arm 51 is located at the first position on the rear side in the discharge direction with respect to the step portion 433, and the loading arm 51 further than the first position. And a first switch SW1 capable of detecting that it is located at the second position on the rear side in the discharging direction. When the large-diameter disk 1A is ejected, the control circuit unit controls the driving unit 40 to rotate the roller 513 until the loading arm 51 is positioned at the second position, and then detects from the first switch SW1. The signal is received, and the rotation of the roller 513 is stopped. Further, when ejecting the small-diameter disk 1B, the drive unit 40 is controlled to rotate the roller 513 until the loading arm 51 is positioned at the first position, and then the detection signal from the second switch SW2 is received. The roller 513 is rotated at least for a predetermined time from when the loading arm 51 is located at the first position until it contacts the stepped portion 433.
According to such a configuration, both the large-diameter disk 1A and the small-diameter disk 1B can be discharged satisfactorily only by installing two switches, the first switch SW1 and the second switch SW2, as detection means. For this reason, since the apparatus configuration is simplified, the manufacturing cost can be reduced. In addition, for the small-diameter disk 1B in which the discharge position variation is relatively conspicuous, the delay drive can be performed to reliably bring the loading arm 51 into contact with the stepped portion 433, so that the discharge position can be determined reliably. it can.

Further, the arrangement of the first switch SW1 and the stepped portion 433 is adjusted so that the center holes of the large-diameter disk 1A and the small-diameter disk 1B substantially coincide with each other.
Thereby, when the optical disk 1 is ejected, the central hole comes out at the same position in both the large-diameter disk 1A and the small-diameter disk 1B, so that the appearance is good and the user can easily take out the optical disk.

The transport means 30 as the disk transport device of the above-described embodiment is a disk transport mechanism that transports the optical disk 1 inserted into the housing 10 from the insertion / ejection port 14 into the housing 10. A roller 513.
According to such a conveying means 30, the optical disc 1 can be satisfactorily carried into the housing 10, and the optical disc 1 can be reliably ejected from the insertion / ejection opening 14 at a certain ejection position as described above.

The disk device 100 according to the above embodiment includes a housing 10 having an insertion / extraction port 14 into which the optical disk 1 can be inserted / removed, a transport unit 30, a turntable 23, and an information processing unit 24 provided inside the housing 10. And.
According to such a disk device 100, after the optical disk 1 is successfully carried into the housing 10, the optical disk 1 can be read and recorded, and as described above, the optical disk 1 is inserted from the insertion / extraction port 14. It can be surely discharged at a certain discharge position.

[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 present invention is not limited to this, and for example, a relatively large disk mounted on a desktop personal computer or the like. It can also be applied to devices.

  In the said embodiment, although the structure which provides only the level | step-difference part 433 as a control part was illustrated, the control part may be provided with two or more. Further, the restricting portion is provided only for the loading arm 51. However, for example, the restricting portion may be provided for another arm such as the sub-loading arm 53. In such a case, the rotation of each arm can be more reliably restricted by the plurality of restriction portions.

  In the above embodiment, the stepped portion 433 provided in the cover member 43 is exemplified as the restricting portion. A protrusion or the like protruding inward may be used. Moreover, although the linear thing was illustrated as a shape of the level | step-difference part 433, it is not restricted to this, For example, circular arc shape, a triangular shape, etc. may be sufficient. Furthermore, although the restricting portion is provided on the cover member 43, the present invention is not limited to this, and may be provided on the upper surface of the wing portion 12, for example. Further, the cover member 43 is provided in a state of covering the top surface side of the drive motor 41 and the drive transmission gear group 42. It may be configured.

  In the above embodiment, the step portion 433 is provided in a state where the step hole 433 is in contact with the loading arm 51 when the central hole of the optical disc 1 is located outside the insertion / ejection port 14. The step portion 433 may contact the loading arm 51 when a part of the hole is located outside the insertion / extraction port 14. In addition, it is preferable that the entire center hole of the optical disc 1 is located outside the insertion / ejection port 14 as in the above-described embodiment because the user can easily grip the ejected optical disc 1.

  In the embodiment, when the large-diameter disk 1A is ejected, the control circuit unit controls the driving unit 40 to rotate the roller 513 until the loading arm 51 is positioned at the second position, and then the first switch SW1. The configuration is shown in which the detection signal is received and the rotation of the roller 513 is stopped. However, the rotation stopping operation of the roller 513 mentioned here is not limited to the one that completely stops the rotation of the roller 513 immediately after receiving the detection signal from the first switch SW1, but the detection signal is received. After that, the roller 513 includes a device that rotates the roller 513 for a short time. That is, the delay process may be slightly performed on the large-diameter disk 1A.

  In the above embodiment, the first switch SW1 and the second switch SW2 that detect the rotation position by detecting the position of the link plate 55 as the detection means for detecting the rotation position of the loading arm 51 are exemplified. The present invention is not limited to this. For example, the rotation position of the loading arm 51 may be detected by detection means for detecting the rotation position of the loading link arm 521, detection means for detecting the position of the loading slide plate 522, or the like. Alternatively, the rotation position of the loading arm 51 may be directly detected. Further, the first switch SW1 and the second switch SW2 are not limited to switching on / off states by the advancement and retraction of the switch piece, and may be, for example, an optical detection unit. That is, any detection means that can detect the rotational position of the loading arm 51 can be used as the detection means in the present invention.

In the above-described embodiment, the configuration in which the transport unit 30 includes the first switch SW1 and the second switch SW2 is exemplified. However, the second switch SW2 may not be provided.
That is, for example, when ejecting the large-diameter disk 1A, the control circuit unit controls the driving unit 40 to rotate the roller 513 until the loading arm 51 is positioned at the second position, and then from the first switch SW1. Is detected and the rotation of the roller 513 is stopped. When the small-diameter disk 1B is ejected, the drive unit 40 is controlled to rotate the roller 513 until the loading arm 51 is positioned at the second position, and then the detection signal from the first switch SW1 is received. The roller 513 may be configured to rotate at least a predetermined time from when the loading arm 51 is positioned at the second position until the loading arm 51 contacts the stepped portion 433.
According to such a configuration, when the small-diameter disk 1B is ejected, even if the second switch SW2 is not provided, the delay drive time from when the detection signal is received from the first switch SW1 is set longer. By doing so, the loading arm 51 can be reliably brought into contact with the stepped portion 433. For this reason, the discharge position of the small-diameter disk 1B can be reliably determined as in the above embodiment, and the apparatus cost can be reduced because the second switch SW2 is not required.

As another example in which the second switch SW2 is not provided, the following configuration may be used.
That is, for example, when the optical disk 1 is carried into the housing 10, when the optical disk 1 is inserted into the housing 10 from the insertion / ejection port, the loading arm 51 is inserted in a state of being in contact with the peripheral edge of the optical disk 1. It rotates in a direction away from the outlet 14. When the loading circuit 51 is rotated until the loading arm 51 is located at the second position, the control circuit unit receives the detection signal from the first switch SW1, controls the driving unit 40, and rotates the roller 513. Then, the optical disk 1 is carried into the housing 10. On the other hand, when the optical disk 1 is ejected from the insertion / ejection port 14, the loading arm 51 is interlocked with the rotation of the roller 513 by the driving force from the driving unit 40 in a state where the roller 513 is in contact with the peripheral edge of the optical disk 1. It rotates to the insertion / extraction port 14 side by the urging force from the urging means. The control circuit unit controls the driving unit 40 to rotate the roller 513 until the loading arm 51 is positioned at the second position, and then receives a detection signal from the first switch SW1, and at least the loading arm A configuration may be employed in which the roller 513 is rotated for a predetermined time or more after the 51 is positioned at a predetermined position until it contacts the stepped portion 433.
According to such a configuration, both the loading and unloading operations of the optical disc 1 can be performed by one first switch SW1, so that the apparatus cost can be greatly reduced. Similarly to the above modification, when the optical disk 1 is ejected, even if the second switch SW2 is not provided, the delay drive time from when the detection signal is received from the first switch SW1 is set longer. By doing so, the loading arm 51 can be reliably brought into contact with the stepped portion 433, and the ejection position of the optical disc 1 can be determined with certainty. In particular, when the optical disk 1 is a small-diameter disk 1B, when the small-diameter disk 1B is inserted, the position where the small-diameter disk 1B is drawn by the roller 513 is the back side, so that the user can easily insert the disk and the small-diameter disk 1B When the disc is ejected, the ejection position of the small-diameter disc 1B is on the near side, so that the user can easily take out the disc.

  In the embodiment, as an urging means, a spring spanned between the link pin 541D and a spring hook provided on the back side of the base plate 111, the sub arm slide plate 541, the link plate 55, and the loading link mechanism 52. However, the present invention is not limited to this. In other words, any urging means may be used as long as it can urge the loading arm 51 in the direction in which the loading arm 51 is rotated toward the insertion / ejection port 14 side. The loading slide plate 522 may be provided with a spring in the state.

  In the above-described embodiment, the roller 513 provided at the tip of the loading arm 51 is exemplified as the disk carry-in means. However, the present invention is not limited to this. For example, as the disk carrying-in means, a cylindrical roller that is provided on the top surface or the bottom surface of the disk conveying surface in a direction substantially orthogonal to the disk conveying direction and that can contact the surface of the optical disk 1 is rotated. It may be. In addition to the roller 513 at the tip of the loading arm 51, for example, a sub-roller that is rotationally driven in the transport direction of the optical disk 1 by the driving force of the drive motor 41 is provided at the tip of the sub-loading arm 53. The optical disk 1 may be transported by rotation.

  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]
The disc ejection mechanism according to the embodiment is provided in the housing 10 having the insertion / ejection port 14 into which the optical disc 1 can be inserted and ejected, and the optical disc 1 accommodated in the housing 10 is ejected from the insertion / ejection port 14. To do. This disc ejection mechanism includes a driving unit 40 that generates a driving force, a loading arm 51, and a stepped portion 433 as a regulating unit. The loading arm 51 is driven by the driving force from the drive unit 40, the proximal end side is pivotally supported inside the housing 10, and the distal end side is in contact with the peripheral portion of the optical disc 1 accommodated inside the housing 10. The optical disc 1 is ejected from the insertion / ejection port 14 by rotating toward the insertion / ejection port 14 side with the tip end in contact with the peripheral edge. The step 433 is provided so as to protrude into the rotation path of the loading arm 51, contacts the loading arm 51 at a position where the optical disk 1 is ejected from the insertion / ejection port 14, and rotates the loading arm 51. To regulate.
Thus, in the operation of ejecting the optical disk 1 inside the housing 10, the loading arm 51 contacts the stepped portion 433 at a position where the optical disk 1 is ejected from the insertion / ejection port 14 by a predetermined amount. Thereby, since the rotation of the loading arm 51 is reliably regulated, for example, even if there is a variation in the mounting position of various sensors, the time constant of the drive motor 41, or the like, the ejection position of the optical disc 1 may vary. It can be surely prevented. Therefore, since the discharge amount of the optical disk 1 is always constant, the appearance is good, and for example, it can be reliably discharged to the center hole of the optical disk 1 so that the user can easily take out the disk.

Further, the transport means 30 as the disk transport device of the above embodiment includes the disk discharge mechanism and a disk carry-in means for carrying the optical disk 1 inserted into the housing 10 from the insertion / ejection port 14 into the housing 10. As a roller 513.
According to such a conveying means 30, the optical disc 1 can be satisfactorily carried into the housing 10, and the optical disc 1 can be reliably ejected from the insertion / ejection opening 14 at a certain ejection position as described above.

Further, the disk device 100 according to the above embodiment includes a housing 10 having an insertion / extraction port 14 into which the optical disk 1 can be inserted and removed, a conveying means 30 provided in the housing 10, a turntable 23, and information processing. Part 24.
According to such a disk device 100, after the optical disk 1 is successfully carried into the housing 10, the optical disk 1 can be read and recorded, and as described above, the optical disk 1 is inserted from the insertion / extraction port 14. It can be surely discharged at a certain discharge position.

It is a top view which shows the internal structure in the initial state of the disc apparatus based 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 top view which shows the vicinity of the drive part in the said embodiment. It is a top view of the state which removed the cover member of the drive part vicinity 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 a disassembled perspective view of the lock mechanism in the embodiment. It is a figure which shows the urging | biasing force which concerns on the guide mechanism in the said embodiment. It is a figure which shows the urging | biasing force which concerns on the guide mechanism in the state which further rotated the guide arm counterclockwise from the state of FIG. FIG. 10 is a diagram illustrating an urging force related to the guide mechanism in a state where the guide arm is further rotated counterclockwise from the state of FIG. 9. It is a figure which shows the urging | biasing force which concerns on the guide mechanism in the state which rotated the guide arm further counterclockwise from the state of FIG. 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 top view which shows the inside of the disc apparatus in the motor drive start state of the large diameter disc in the said embodiment. It is a top view which shows the inside of the disc apparatus in the middle of carrying in of the large diameter disc in the said embodiment. It is a top view which shows the inside of the disc apparatus in the cam extrusion start state of the large diameter disc in the said embodiment. It is a top view which shows the inside of the disc apparatus in the completion of carrying in of the large diameter disc in the said embodiment. It is a top view which shows the inside of the disc apparatus at the time of the performance possible state of the large diameter disc in the said embodiment. It is a top view which shows the inside of the disc apparatus in the motor drive start state of the small diameter disc in the said embodiment. It is a top view which shows the inside of the disc apparatus in the cam extrusion start state of the small diameter disc in the said embodiment. It is a top view which shows the inside of the disc apparatus in the completion state of carrying in of the small diameter disc in the said embodiment. It is a top view which shows the inside of the disc apparatus at the time of the performance possible state of the small diameter disc in the said embodiment.

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 23 ... Turntable as holding means 24 ... Information processing unit 30 ... Disc conveyance Conveying means as a device 40... Drive unit 43 as a driving means constituting a disk ejection mechanism 43. Cover member 51. Loading arm as an arm constituting a disk ejection mechanism 52. Loading link mechanism 55 constituting an urging means. Link plate constituting biasing means 100... Disk device 433. Stepped portion as restricting part constituting disk ejecting mechanism 513. Roller as disk loading means and rotating member 541... Sub-arm slide plate SW1 constituting biasing means SW First switch as two detection means Chi SW2 ... second switch as a first detection means

Claims (10)

A disk discharge mechanism provided inside a housing having an insertion / extraction port into which a disk-shaped recording medium can be inserted / extracted, and for discharging the recording medium housed in the housing from the insertion / extraction port,
Driving means for generating a driving force;
Driven by the driving force from this driving means, the base end side is pivotally supported inside the casing, and the tip end side can contact the peripheral edge of the recording medium housed inside the casing, An arm that discharges the recording medium from the insertion / ejection port by rotating toward the insertion / ejection port side in a state in which the tip side is in contact with the peripheral edge;
A restricting portion that is provided in a state of projecting into the rotation path of the arm, and that contacts the arm at a position where the recording medium is discharged from the insertion / ejection port by a predetermined amount, and restricts the rotation of the arm; A disc ejection mechanism characterized by comprising. The disc ejection mechanism according to claim 1, wherein
The drive means is provided in the vicinity of the arm, and the outside is covered with a cover member,
The disc ejecting mechanism according to claim 1, wherein the restricting portion is a stepped portion in which a part of the outer surface portion of the cover member is formed in a stepped shape protruding into the rotation path of the arm. In the disk ejection mechanism according to claim 1 or 2,
The disc ejecting mechanism according to claim 1, wherein the restricting portion is provided in a state of contacting the arm when at least a part of a central hole of the recording medium is located outside the insertion / ejection port. The disc ejection mechanism according to any one of claims 1 to 3,
A rotating member that is provided in a rotatable state by a driving force from the driving means at the tip of the arm and is capable of contacting a peripheral edge of a recording medium housed in the housing;
Urging means for urging the arm in a direction to rotate the arm toward the insertion / ejection port side,
The arm is connected to the insertion / extraction port side by the urging force from the urging unit in conjunction with the rotation of the rotating member by the driving force from the driving unit in a state where the rotating member is in contact with the peripheral edge of the recording medium. To contact the restricting portion,
The disk ejecting mechanism according to claim 1, wherein the driving means drives the rotating member until at least the arm comes into contact with the restricting portion. The disc ejection mechanism according to claim 4, wherein
Detecting means capable of detecting that the arm is located at a predetermined position on the rear side in the discharge direction with respect to the regulating portion;
A controller connected to the detection means and the drive means in a state where various signals can be transmitted and received,
The control unit controls the driving unit to rotate the rotating member until the arm is located at the predetermined position, and then receives a detection signal from the detecting unit, so that at least the arm is in the predetermined direction. A disc ejecting mechanism characterized in that the rotating member is rotated for a predetermined time or more after it is positioned to abut against the restricting portion. In the disc ejection mechanism according to claim 5,
The arm can eject both a large-diameter disk that is a large-diameter disk-shaped recording medium and a small-diameter disk that is a smaller-diameter disk-shaped recording medium than the large-diameter disk from the insertion / extraction opening. ,
The restricting portion is provided in a state of contacting the arm at a position where the small-diameter disk is ejected from the insertion / ejection opening by a predetermined amount,
The detection means includes first detection means capable of detecting that the arm is located at a first position on the rear side in the discharge direction with respect to the restricting portion, and the arm is further on the rear side in the discharge direction than the first position. Second detection means capable of detecting that the second position on the side is located,
The controller is
When ejecting the large-diameter disk, the driving unit is controlled to rotate the rotating member until the arm is located at the second position, and then receives a detection signal from the second detecting unit. , Stop the rotation of the rotating member,
When ejecting the small-diameter disc, the drive unit is controlled to rotate the rotating member until the arm is located at the first position, and then receive a detection signal from the first detection unit, The disc ejecting mechanism characterized in that the rotating member is rotated at least for a predetermined time from when the arm is positioned at the first position until it comes into contact with the restricting portion. In the disc ejection mechanism according to claim 5,
The arm can eject both a large-diameter disk that is a large-diameter disk-shaped recording medium and a small-diameter disk that is a smaller-diameter disk-shaped recording medium than the large-diameter disk from the insertion / extraction opening. ,
The restricting portion is provided in a state of contacting the arm at a position where the small-diameter disk is ejected from the insertion / ejection opening by a predetermined amount,
The controller is
When ejecting the large-diameter disc, the drive unit is controlled to rotate the rotating member until the arm is located at the predetermined position, and then receives a detection signal from the detection unit to perform the rotation. Stop the rotation of the member,
When ejecting the small-diameter disk, the drive unit is controlled to rotate the rotating member until the arm is located at the predetermined position, and then receives a detection signal from the detection unit, and at least the arm The disc ejecting mechanism according to claim 1, wherein the rotating member is rotated for a predetermined time or more from when it is positioned at the predetermined position until it comes into contact with the restricting portion. A disk transport device for transporting the recording medium provided inside a housing having an insertion / ejection port into which a disk-shaped recording medium can be inserted and removed,
A disk ejection mechanism according to any one of claims 1 to 7,
And a disk carry-in means for carrying the recording medium inserted into the housing from the insertion / extraction opening into the housing. The disk transport apparatus according to claim 8, wherein
The disk carry-in means is provided in a state that it can be rotated by a driving force from the drive means at the tip of the arm, and can be brought into contact with a peripheral edge of a recording medium housed in the housing. It is a rotating member that moves the recording medium in the carry-out direction or the carry-in direction by rotating with a driving force from the driving means in a state of being in contact with the peripheral edge,
The disc ejection mechanism is
An urging means for urging the arm in a direction to rotate the arm toward the insertion / extraction port;
Detecting means capable of detecting that the arm is located at a predetermined position on the rear side in the discharge direction with respect to the regulating portion;
A control unit connected to the detection unit and the drive unit in a state in which various signals can be transmitted and received,
When carrying the recording medium into the housing,
When the recording medium is inserted into the housing from the insertion / extraction port, the arm rotates in a direction away from the insertion / extraction port in a state of being in contact with the peripheral edge of the recording medium,
When the arm is rotated until the arm is positioned at the predetermined position, the control unit receives a detection signal from the detection unit, controls the driving unit to rotate the rotating member, and records the recording. The medium is carried into the housing,
When discharging the recording medium from the insertion / extraction port,
The arm is connected to the insertion / ejection port side by the urging force from the urging unit in conjunction with the rotation by the driving force from the driving unit in a state where the rotating member is in contact with the peripheral edge of the recording medium. Turn to
The control unit controls the driving unit to rotate the rotating member until the arm is positioned at the predetermined position, and then receives a detection signal from the detecting unit, so that at least the arm is in the predetermined direction. The disk transport device characterized in that the rotating member is rotated for a predetermined time or more after being positioned to contact the restricting portion. A housing having an insertion / extraction port into which a disk-shaped recording medium can be inserted / extracted;
The disk transport device according to claim 8 or 9 provided inside the housing,
Holding means provided inside the housing and holding the recording medium carried into the housing by the disk transport device in a state in which information recorded on the recording medium can be processed;
At least one of a reading process of reading information recorded on the recording medium held in the holding unit and held in the holding unit and a recording process of recording information on the recording medium is performed. And a data processing unit.

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