JPH11213502A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk device which enables a disk center hole to be surely fitted to the projecting part of a turntable when the disk is released from being sandwiched by a transportation means, and enables the disk to be clamped in a state in which the disk is centered. SOLUTION: A disk D inserted from a port 3a is carried in by being held by a transporting roller 22 and a pressing guide 9 via a transportation means G. When the transportation has been completed, the transporting roller 22 and the pressing guide 9 descend keeping the disk D holding, and when the center of the disk D is fitted to the turntable, the transporting roller 22 and the pressing guide 9 are released from sandwiching the disk. Thus, the center part of the disk is surely put on the turntable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD-ROM
The present invention relates to a disk device such as a VD-ROM, and more particularly to a slot-in type thin disk device that can be built in a so-called notebook computer or the like.

[0002]

2. Description of the Related Art A slot-in type disk device in which a disk is inserted from an insertion slot is used for a vehicle. As a structure of this type of disk device, a disk inserted from an insertion slot is carried by a disk drive unit while being sandwiched between a transport roller and a pressing member constituting a disk transport unit. When the center hole of the loaded disk reaches the turntable of the disk drive unit, for example, the transport roller is lowered to release the disk from being held, and the disk falls to the turntable by its own weight. At this time, the clamper facing the turntable is lowered in the direction of the turntable, the center hole of the disc is clamped between the turntable and the clamper, and the disc is clamped.

[0003]

However, in the above-mentioned conventional disk drive, when the center hole of the disk has moved onto the turntable, that is, when the disk and the turntable are separated from each other, the transport roller and the pressing member are moved. Is released, and the disc becomes free.
In some cases, the center hole of the disc that falls under its own weight cannot be securely fitted to the projection of the turntable.

When such a phenomenon occurs, the disk is clamped between the turntable and the clamper in a state where the center hole of the disk is disengaged from the projection of the turntable, and the disk is not securely clamped. There is a disadvantage that the turntable is driven to rotate in this state.

The present invention solves the above-mentioned conventional problems. When the holding of the disk by the transport means is released, the center hole of the disk is securely fitted to the convex portion of the turntable, and the disk is inserted. It is an object of the present invention to provide a disk device that can be clamped in a centered state.

[0006]

According to the present invention, there is provided an insertion slot (3a) into which a disk is inserted, a disk drive (4) having a turntable (Ta) for supporting the disk, and an insertion slot (3a). In a disk device provided with a disk transport means (G) for transporting the inserted disk onto the turntable (Ta), the disk transport means (G) includes a transport roller ( 22), a holding member (9), and a motor for rotating the transport roller (22).
When the center hole of the disc inserted from FIG. a) and conveyed by the disc conveying means (G) reaches the turntable Ta, the turntable (with the conveying roller (22) and the pressing member (9) held between the disc and the turntable (G)). A drive means (17, 25) for moving in the direction of Ta) is provided.

[0007] The pressing member constituting the disk transport means in the present invention is, for example, a pressing guide as shown in FIG.
Alternatively, the pressing member may be a roller (a driven roller) that holds the disk with the transport roller. Further, the transport roller may be located on the upper side and the pressing member may be located on the lower side (turntable side), and the disk may be sandwiched between the transport roller and the pressing member.

In the above, it is preferable that the pinching of the disc by the transport roller (22) and the pressing member (9) is released at or immediately before the center hole of the disc is inserted into the projection of the turntable Ta. .

In the present invention, the disk is moved in the direction of the turntable in a state where the disk is held between the transport roller and the pressing member while the holding state is maintained.
Therefore, the pinching of the disk is released at or immediately before the center hole of the disk is fitted to the projection of the turntable, and the center hole of the disk is securely fitted to the projection of the turntable. Thus, the disk is securely centered and clamped on the turntable.

For this purpose, positioning members (13a, 13a) for positioning the center of the disk on the turntable.
Is preferably provided. The center of the disk may be pressed against the turntable by a clamper, or the center of the disk may be clamped without a clamper by the turntable itself.

For example, a transport bracket (21) supporting a transport roller (22) is moved so as to descend in the direction of the turntable (Ta), and a pressing member (9) follows the transport roller (22). The pressing member (9) is urged toward the transport roller (22) so that the disc can be moved to the position where the disc is separated when the center hole of the disc is set on the turntable Ta. It is possible to follow in the direction of Ta).

Further, the center of the transport roller (22) and the pressing member (9) located on the turntable (Ta) side is larger than the other center of the turntable (Ta).
It is preferable that the leading end portion of the disc, which is disposed between the conveying roller (22) and the holding member (9), is inclined in a direction away from the turntable (Ta).

With this configuration, it is possible to reduce the probability that the front end of the disk loaded by the rotation of the transport roller hits the side surface of the turntable. Even with the same setting, the disc can be smoothly carried in without hitting the turntable.

When the transporting roller (22) and the pressing member (9) are moved in the direction of the turntable (Ta) by the driving means (17, 25), the driving means (1) is used.
7, 25), the shutter (41) provided in the insertion port (3a) can be driven in a direction to close the insertion port.

In this structure, the lowering of the transport roller and the closing operation of the shutter are performed at the optimum timing in synchronization with each other. Further, a special driving source for opening and closing the shutter is not required.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view showing an embodiment of a disk drive according to the present invention. The disk device A shown in FIG. 1 is covered with a main housing 1 corresponding to a lid, a sub-housing 2 corresponding to a bottom thereof, and a decorative plate 3 provided on the front (Y1) side of both. It is extremely thin. That is, the disk device A shown in FIG. 1 is a slot-in type thin disk device.

The disk drive unit 4 is elastically supported between the main housing 1 and the sub-housing 2 by a plurality of damper members K into which air or oil is injected. Decorative board 3
Have a small diameter (8 cm) disk DS and a large diameter (12 cm).
cm) is provided with a slit-shaped insertion opening 3a for inserting or ejecting the disc DL.

In the disk drive unit 4, a drive chassis 5 is provided with a spindle motor M. The upper surface (Z1) side of the spindle motor M in the figure is provided with a turntable Ta made of a ferromagnetic material such as iron. Has become.
At a position adjacent to the spindle motor M, a pair of parallel guide members (not shown) and a pickup P supported by the guide members are provided. The pickup P can be freely moved in the radial direction of the disk by forward or reverse rotation of a screw shaft (not shown). Therefore, the disc D inserted from the insertion slot 3a is mounted on the turntable Ta and is driven to rotate, so that the pickup P can perform reproduction or recording.

FIG. 2 is a perspective view showing the main housing 1 of the disk drive A shown in FIG. 1 from the back side (inside), and FIG. 3 is viewed from the direction of the arrow III in FIG. FIG. As shown in FIG. 2, the back (inside) of the main housing 1
Are provided with various members such as a conveying unit, a clamping unit, and a discharging unit. At the rear (Y2 side) of the insertion slot 3a, a first disk guide 8 laid on the back surface of the main housing 1 and horizontally holding the disk D to be inserted, a transport roller 22, and a transport bracket 21 are provided. A disk transport means G is provided. A pressing guide 9 and a second disc guide 10 are laid on the Y2 side in the drawing adjacent to the first disc guide 8.

The holding guide 9 is provided with rotating shafts 9a at both ends on the Y1 side in the figure. A receiving portion (not shown) is formed in the first disk guide 8, and the rotating shafts 9a, 9a are rotatably supported by the receiving portion. Therefore, the holding guide 9 can rotate in a direction (Z2 direction) approaching the transport roller 22. Further, regulating pins 9 are provided at both ends of the end of the holding guide 9 on the Y2 side.
b and 9b are provided, and are respectively inserted into square holes 1a1 and 1b1 formed in the side plates 1a and 1b of the main housing 1. Therefore, the amount of rotation of the presser guide 9 depends on the square hole 1.
a1, 1b1. The presser guide 9
Is provided in the Z1 direction (not shown), and the pressing guide 9 comes into close contact with the transport roller 22 when the transport bracket 21 is in a disk clamping state approaching in the illustrated Z1 direction. Has become.

As shown in FIGS. 2 and 3, between the rear surface of the main housing 1 and the first disk guide 8, the holding guide 9 and the second disk guide 10, selection arms 11, 11 are provided. In addition, select arms 12A and 12B are rotatably provided at left and right equal positions. The selection arms 11, 11 are both provided on the end side close to the insertion slot 3a, are rotatably supported on the support shafts 11a, 11a, and have the other ends having the connection pins P2, P2 rotated. ing. Contact pins P1 and P1 are implanted between the support shaft 11a and the connection pin P2, respectively.
Notches 8a, 8a provided at both ends of disc guide 8
The contact pins P1 and P1 protrude from the notches 8a and 8a in the Z2 direction in the figure. The connection pins P2 and P2 are loosely inserted into long holes 12a and 12a formed in the ends of the select arms 12A and 12B, respectively. Further, the tips of the connection pins P2 and P2 are inserted into arc grooves 10a formed in the second disk guide 10, and can freely move in the arc grooves 10a.

As shown in FIG. 3, the width W1 between the contact pins P1 is set to be larger than the diameter RS of the small-diameter disk and smaller than the diameter RL of the large-diameter disk. RS <W1 <RL). The width W2 between the connection pin P2 and the connection pin P2 is set smaller than the diameter RS of the small-diameter disc (RS> W2).

Further, fan gears 12b, 12b are formed at the other ends of the select arms 12A, 12B, respectively. The center of the radius of curvature of the sector gears 12b, 12b coincides with the support shafts 12c, 12c.
The select arms 12A and 12B can swing about 2c. The fan gears 12b, 12b mesh with coaxial gears 13b, 13b formed coaxially with the central axes 13c, 13c of the positioning arms 13A, 13B. Positioning pins 13a, 13a each having a tapered distal end are implanted at the distal ends of the positioning arms 13A, 13B, respectively. The positioning pins 13a, 13a are mounted on a disk D (large-diameter disk DL or small-diameter disk DS) inserted from the insertion slot 3a. It is opposed. As shown in FIG. 3, the positions of the positioning pins 13a, 13a are
It is set so as to be located on both sides, that is, on the side plates 1a (X2) and 1b (X1) sides with respect to the lines L1 and L1 connecting the center axes 13c of A and 13B and the center of the turntable Ta.

On the other hand, the coaxial gear 1 of the positioning arm 13A
Between the 3b and the coaxial gear 13b of the positioning arm 13B, a flat plate is punched and formed into a crank shape, and link arms 14 having rack portions 14A and 14B at both ends thereof are slidably connected in the X-axis direction.

Therefore, in FIG. 3, for example, when the select arm 12A rotates counterclockwise, the coaxial gear 13b of the positioning arm 13A rotates clockwise, which is the opposite direction to the fan gear 12b.
Moves in the illustrated X2 direction. Thereby, the rack part 14
B rotates the positioning arm 13B counterclockwise, and at the same time, the other select arm 12B
Rotates clockwise. Conversely, when the select arm 12A rotates clockwise in FIG. 3, the positioning arm 13A rotates counterclockwise, and the link arm 14 moves in the X1 direction in the figure. As a result, the rack portion 14B is
At the same time as B is rotated clockwise, the other select arm 12B is rotated counterclockwise.

That is, the positioning arm 13A and the positioning arm 13B, the select arm 12A and the select arm 12B, and the like can be driven symmetrically and synchronously. Note that the link arm 14 is shown as X1
An urging member S1 for urging in the direction is provided. Normally, as shown in FIGS.
It has been moved to one side. Therefore, select arm 1
2A is turned clockwise in FIG. 3, the select arm 12B is turned counterclockwise in FIG. 3, and the select arms 11, 11 are turned in directions approaching each other.

Between the rear surface of the main housing 1 and the link arm 14, there is provided a turning arm 15 formed in a substantially rectangular shape. A trigger pin 1 is provided at the tip of the rotating arm 15.
The trigger pin 15a is located between the positioning pins 13a and 13a of the positioning arms 13A and 13B, and faces the disk D to be inserted.

One end of the link arm 14 (X2 side)
Are formed with an inclined guide groove 14a formed in an inclined shape and a protruding convex portion 14b. Slant guide groove 1
A projection 15b projecting from a bent portion of the rotating arm 15 is inserted through 4a. The protrusion 14b can be locked to a lock claw 20b of the lock member 20 described later. On the other hand, the other end (X2
The side 15) also has a projection 15c protruding therefrom. This convex part 15
“c” is loosely inserted into a long hole 16 a formed in a Y2 side end of a switch arm 16 provided slidably in the Y-axis direction along one side plate 1 a of the main housing 1. On the other end (Y1) side of the switch arm 16, a locking portion 16b bent in the Z2 direction in the figure is formed, and is pressed by a Y1 side end of a bottom portion 17h of the slider 17, which will be described later. The rack arm 18 can be brought into contact with the pressed portion 18c. The switch arm 16 itself is urged in the Y2 direction by the urging member S2.

As shown in FIG. 2, the main housing 1 has a side plate 1a.
(Driving means) 17 is provided which moves along. On the side surface of the slider 17, a rack arm 18 slidable in the illustrated Y-axis direction is provided. That is, the guide groove 17a extending in the Y-axis direction is provided in the slider 17.
And 17b are drilled, and the guide grooves 17a,
The protrusions 1e and 1f protruding from the side plate 1a are inserted into 17b, respectively, so that they can move in the Y-axis direction in the figure. Guide grooves 18a and 18b are also formed in the rack arm 18, and one end (Y1) of the slider 17 is provided in the guide groove 18a.
The convex portion 17c protruding from the side and the convex portion 17d are inserted into the guide groove 18b. Therefore, the rack arm 18 can move together with or independently of the slider 17 in the Y direction.

A locking hole 18d formed in the rack arm 18 and a locking piece 1 formed by bending a part of the slider 17 are provided.
7e, a biasing member S3 is stretched and the rack arm 18 is normally biased in the Y2 direction in the figure. Also, the lower surface (Z
On the 1) side, a rack portion 18e is formed, which meshes with one of gear groups 23 provided on the transport bracket 21 described later.

At the other (Y2) end of the slider 17, a lock mechanism 19 rotatably supported by a rotating shaft 17f is rotatably provided. Lock mechanism 19
Are locking portions 17 projecting from the rotation shaft 17f on the Y1 side.
g, a locking hole 19b formed at the end of the lock mechanism 19
The rotation thereof is regulated by the urging member S4 stretched between. A substantially triangular claw 19a is formed at the tip of the lock mechanism 19 to form a lock member 20 to be described later.
Are locked to the projection 20c.

As shown in FIG. 2, a lock member 20 is provided at one corner of the main housing 1 formed by the side plate 1a and the back plate 1c. The lock member 20 is formed by bending a metal plate into a substantially U-shaped cross section, and is rotatably supported by a rotation shaft 20 a implanted in the main housing 1.
A part on the lower surface (Z1) side of the lock member 20 extends in the X1 direction in the figure, and a lock claw 20b is formed at the tip thereof. On the other hand, the upper surface (Z2) side of the lock member 20 is shown as Y1
The projection 20c protrudes from the end of the projection 20c. A biasing member S5 such as a spring coil is stretched between the lock member 20 and the back plate 1c, and the entire lock member 20 is biased in a counterclockwise direction in the figure (clockwise direction in FIG. 3). Have been. At the connection between the upper surface and the lower surface of the lock member 20, a restricting portion 20 d formed by bending into an L-shape is formed, and the restricting portion 20 d contacts the back plate 1 c of the main housing 1. Because of the contact, the rotation of the lock member 20 is restricted.

At a position facing the disk guide 8 in the main housing 1, a disk transport means G is provided. The disk transport means G mainly includes a transport bracket 21 formed by bending a metal plate and a transport roller 22, and the transport roller 22 is rotatably supported between the side portions 21a and 21b of the transport bracket 21. I have. A gear group 23, which will be described later, is incorporated in one of the side portions 21a, and rotates the transport roller 22. A large gear 23a is provided at the most Y1 side of the gear group 23. The side portion 21a of the transport bracket 21 is rotatably supported by a support pin 1g protruding from the side plate 1a of the main housing 1, and the large gear 23a is supported by the support pin 1g. . A shaft hole 21b1 is formed in the other side 21b. A shaft pin 1h (not shown) projecting from the side plate 1b of the main housing 1 is inserted into the shaft hole 21b1 to be supported by the shaft. That is, the transport bracket 21 has a structure in which the side portions 21a and 21b are rotatably supported by the support pins 1g and 1h. A U-shaped groove 21b2 for opening and closing a shutter mechanism described later is formed at an end of the side portion 21b on the Y1 side in the drawing.

The large gear 23a meshes with a drive gear 24 rotatably provided adjacent to the support pin 1g. A drive motor (not shown) is provided inside the main housing 1, and the driving force of the drive motor is transmitted through a gear group 23 having a drive gear 24 and a large gear 23 a, so that the transport roller 22 is driven forward or reverse.

As shown in FIG. 3, on the back surface of the insertion slot 3a of the disc, a first
In addition, third to third detecting means 33, 34, and 35 are provided at predetermined positions so that the presence or absence of a disk can be detected.

FIG. 4 is a partial side view showing one side plate of the transport bracket. As shown in FIG. 4, a protrusion 21 projecting toward the X2 side is provided at an end of the other side (Y2) of the side portion 21a.
The protrusion 21a1 is inserted into a U-shaped groove 25a formed at one corner of a speed increasing link (drive means) 25 formed in a substantially triangular shape. Speed-up link 25
A through-hole 25b is formed in the other corner. The speed increasing link 25 is provided along the above-described side plate 1a, and the tip of a convex portion 1e which is inserted through the above-described guide groove 17a of the slider 17 and protrudes in the X1 direction in the drawing is formed in the through hole 2a.
5b, it is rotatably supported by the shaft. Further, in the other corner of the speed increasing link 25, the illustrated X2
A protrusion 25c projecting in the direction is formed, and is inserted into a crank groove 17i formed in the slider 17.

An urging member S6 composed of a torsion coil spring (reversing spring) is provided between the speed increasing link 25 and the slider 17. One end of the urging member S6 is locked by a locking portion of the speed increasing link 25 denoted by reference numeral 25d, and the other end is locked by a locking portion of a slider denoted by reference numeral 17j. The biasing member S6 in a state where the slider 17 is located in the Y2 direction in the figure is shown by a solid line in FIG.
At this time, since the main urging direction that the speed increasing link 25 receives from the urging member S6 is the Z1 direction in the drawing, the convex portion 21a1 inserted into the U-shaped groove 25a is urged in the Z1 direction in the drawing. Therefore, the tip portion on the Y2 side of the side portion 21a of the transport bracket 21 is urged in the illustrated Z1 direction, and the transport bracket 21 rotates in a direction approaching the press guide 9, and the transport roller 22 and the press guide 9 The disc is held. At this time, a part of the urging force of the urging member S6 urges the speed increasing link 25 in the Y2 direction.
The fifth convex portion 25c urges the step portion of the crank groove 17i of the slider 17 in the Y2 direction.

On the other hand, when the slider 17 is moved in the Y1 direction in FIG. 4, the step of the crank groove 17i of the slider 17 presses the convex portion 25c of the speed increasing link 25 in the Y1 direction. With the movement of the slider 17 in the Y1 direction, the speed increasing link 25 rotates clockwise in the figure around the protrusion 1e (the through hole 25b). As a result, the locking portion 17j is at the position of reference numeral 17j ', and the locking portion 25d is at the position of reference numeral 25j.
Since the urging member S6 moves to the position d ', the urging member S6 is in a state shown by a dotted line in FIG. Accordingly, the urging member S6 urges the speed increasing link 25 in the Z2 direction, so that the transport bracket 21 rotates in the Z2 direction, the transport roller 22 is separated from the pressing guide 9, and the disc is not clamped (see FIG. 9
(See (C)). At this time, part of the urging force of the urging member S6 urges the slider 17 in the Y1 direction.

On the Z1 side of the slider 17, there is provided a locking portion 17k bent in the X1 direction. A hole is formed in the locking portion 17k, and the locking portion 17k is connected to a through hole 32a formed in the rotating piece 32 by inserting a connecting pin therethrough.

As shown in FIGS. 2 and 3, a clamp mechanism 26 is provided at the center of the inner back surface of the main housing 1. The clamp mechanism 26 includes a clamper 27, wings 28, 2
9 and an elevating member 30. The clamper 27 is of a magnet type, and a magnet (not shown) provided in a ring shape in the clamper 27 is magnetically attached to a turntable Ta formed of a ferromagnetic material.
Disc D is located between turntable Ta and clamper 27.
Can be clamped.

The wings 28 and 29 are provided with hinges 28a and 29a symmetrically at predetermined intervals with respect to the left and right, respectively, and the wings 28 and 29a are respectively rotated by the rotation shafts provided on the hinges 28a and 29a. It is rotatably supported by guides 31A and 31B. As shown in FIG. 3, the wings 28, 29
Are provided at both ends of the projection support portions 28b, 28b and 29, respectively.
b and 29b are formed respectively, and the elevating member 3 extends parallel to the X-axis direction along the side of the wings 28 and 29.
Guide grooves 3 formed in the guide bars 30A and 30B
0a, 30a and 30b, 30b are inserted and supported respectively.

The elevating member 30 is provided in each of the guide grooves 3
0a and 30b, and guide bars 30A and 30B provided in parallel, a connecting portion 30C for connecting the X2 side ends of the guide bars, and a connection protruding from the connecting portion 30C in the Z1 direction. It is composed of a shaft 30D. The elevating member 30 is placed in a recess 10A formed in the second disk guide 10 as shown in FIG.
It is slidably supported in the direction.

FIG. 5 is a partial front view of the disk device showing the clamp mechanism. As shown in FIG.
0a and 30b are inclined grooves inclined in the height direction. As shown by the solid line in the drawing, when the elevating member 30 is located in the X1 direction, the support portions 28b and 29b are located on the upper side (Z1) side of the inclined grooves of the guide grooves 30a and 30b, so that the wing portions 28 and 29 It is a horizontal posture. The tips of the wings 28 and 29 in the horizontal posture support the edge of the clamper 27. When the elevating member 30 (guide bars 30A, 30B) is moved in the X2 direction in the drawing, the supporting portions 28b and 29b move down the inclined grooves of the guide grooves 30a, 30b to be located on the lower side (Z2) side. Become. Therefore, the wings 28 and 29 are inclined as shown by the dotted lines in the drawing, and
Is lowered in the Z2 direction by its own weight, and is attracted onto the turntable Ta by the magnetic attraction force of the magnet.
A substantially hemispherical convex portion 27a is provided at the center of the clamper 27, and can be fitted into a substantially hemispherical concave portion Ta1 provided at the center on the turntable Ta side. Therefore, by fitting the convex portion 27a into the concave portion Ta1, chucking is performed so that the centers of the turntable Ta and the clamper 27 are surely coincident with each other.

FIG. 6 is a front view of the disk device. FIG.
As shown in the figure, a shutter mechanism 40 is provided on the back surface of the decorative board 3. In the shutter mechanism 40, a shutter plate 41 formed of a thin metal plate or a resin plate is provided along the back surface of the decorative plate 3, and one end (X1 side) of the shutter plate 41 is supported by a support shaft 42. It is supported rotatably. On the other end (X2 side) of the shutter plate 41,
A projection 43 protruding in the X2 direction is formed, and this projection 43 is inserted into the U-shaped groove 21b2 formed on the side 21b of the transport bracket 21 described above. When the carrying roller 22 of the carrying bracket 21 is in the non-clamping state in which the disc is separated from the press guide 9, the reproduction or recording of the disc D is performed. At this time, the side portion 21b is rotated in the Z1 direction and the U-shaped groove 21b2 is formed. Also moves in the Z1 direction. Therefore, the shutter plate 41 rotates clockwise in FIG. 6 about the support shaft 42, and the insertion port 3a is closed. Therefore, when reproducing or recording the disc D, the insertion slot 3a
, It is possible to prevent another disc from being inserted.

On the other hand, when the transport bracket 21 is in the state of holding the disk and the disk D is inserted or ejected, the side portion 21b moves in the Z2 direction, that is, the U-shaped groove 21b2 moves in the Z2 direction. Accordingly, the shutter plate 41 rotates counterclockwise in FIG. 6 about the support shaft 42, and the insertion port 3a is opened. Therefore, it becomes possible to insert or eject a disk.

The operation of the disk drive according to the present invention will be described below. FIG. 7 is a plan view showing the insertion of a large-diameter disk, and FIG. 8 is a side sectional view showing the relationship between the presser guide and the disk transport means.
(B) shows the lowering of the disk transport means, and (C) shows the end of the lowering (at the time of disk clamping).

(Large-diameter disk insertion operation) As shown in the disk device A of FIG. 7, the large-diameter disk DL inserted from the insertion slot 3a passes right above the first detecting means 33, and The first detecting means 33 is turned off, and the insertion of the disk is detected. In the disk device A, when the insertion of the large-diameter disk DL is confirmed, the drive motor (not shown) is rotated, and the conveyance roller 22 is rotated in the normal direction (counterclockwise in FIG. 8).

As shown in FIG. 8A, the large-diameter disk DL is pressed by the transport roller 22 onto a plane formed by the pressing guide 9 and the first and second disk guides 8 and 10. Therefore, the large-diameter disk DL is conveyed to the inside of the apparatus main body while the horizontal posture is maintained. When the disk DL is carried into the apparatus, the Y of the pressing guide 9 is changed as shown in FIG.
With the large-diameter disk DL sandwiched between the transport roller 22 and the rounded edge 9c having the tip of the second side formed with a predetermined curvature, the transport roller 22 and the pressing guide 9 descend in the Z2 direction.

Here, the positional relationship between the transport roller 22 and the round edge 9c during the disk transport shown in FIG. 8A is shown. In FIG. 8A, the center of curvature of the round edge 9c is The roller 22 is disposed at a position slightly closer to the Y1 side than the center of curvature of the roller 22. Therefore, FIG.
Is transported in the Y2 direction while being sandwiched between the transport roller 22 and the rounded edge portion 9c in the state shown in FIG. This is the same when the transport roller 22 and the pressing guide 9 descend in the Z2 direction after the transport of the disk DL is completed, as shown in FIG. 8B.

Therefore, both the disk DL being transported as shown in FIG. 8A and the disk DL after the transport is completed as shown in FIG. 8B, the edges on the Y2 side are oriented in the Z1 direction (upward). )become. Therefore, the leading end of the disk DL being transported is less likely to be caught on the turntable Ta or the like, but rather moves along the ceiling side (Z1 side) where there are many planar members. Therefore, the loading operation of the disk DL is performed smoothly from beginning to end. Also, when the large-diameter disc DL placed on the turntable Ta is ejected and held between the transport roller 22 and the presser guide 9, the disc DL also has the inclined posture.
The center hole of the large-diameter disk DL can be securely removed from the projection a.

The pressing guide 9 is urged in the Z2 direction by an urging member. As shown in FIG. 8B, when the transport roller 22 is lowered in the Z2 direction, the pressing guide 9 is urged by the urging force. It descends following the transport roller 22. Therefore, after the loading of the disk DL is completed, as shown in FIG. 8B, the disk DL is lowered in the Z2 direction while being held between the transport roller 22 and the pressing guide 9.

The lowering distance of the pressing guide 9 at this time is determined by the amount of movement of the regulating pins 9b, 9b in the square holes 1b1, 1b1. That is, when the large-diameter disk DL sandwiched between the transport roller 22 and the presser guide 9 descends as shown in FIG. 8B and the center hole of the disk enters the projection of the turntable Ta, it is preferable. The amount of movement of the regulating pins 9b, 9b is determined so that the lowering of the presser guide 9 stops when half of the thickness of the disk enters the projection of the turntable Ta. As shown in FIG. 8C, thereafter, only the transport bracket 21 is directly lowered. Therefore, as shown in FIG. 8C, when the large-diameter disk DL is mounted on the turntable Ta, the large-diameter disk D
Clearances are formed between L and the holding member 9 and between the large-diameter disk DL and the transport roller 22. Therefore, the large-diameter disk DL and the pressing guide 9 or the transport roller 2
2 can be avoided, so that the rotation of the disk D is not hindered.

As described above, the disk D that has been transported is
Is Z while being held between the transport roller 22 and the presser guide 9.
Lowers in two directions and the center hole of the disc is the turntable T
After the disk is fitted to the convex portion a, the disk is opened by the transport roller 22 and the holding guide 9. Thus, FIG.
The disk is continuously held between the transport roller 22 and the presser guide 9 from the time immediately after the disk is loaded as shown in FIG. It is possible to prevent the disc center from being displaced from the center of the turntable Ta due to misalignment. Even if the entire apparatus is used sideways, that is, the disk surface is oriented in the direction of gravity, the disk can be reliably loaded.

In FIG. 7, the state in which the large-diameter disk DL is transported is indicated by reference numerals DL0 to DL3. When the large-diameter disk DL is conveyed, the contact pin P1 of the selection arms 11, 11 with the edges of the large-diameter disk DL at the positions indicated by the dotted lines (a) and (b) indicated by the dotted line as shown by the reference numeral DL0. , P1. Further, at the stage where the large-diameter disk DL is conveyed in the Y2 direction and sent to the position of the code DL1,
Since the contact pins P1 and P1 are pressed in the directions of the side plates 1a and 1b, respectively, along the shape of the edge of the large-diameter disk DL, the selection arms 11, 11 are denoted by the solid lines (a ') and (b'). ).

At this time, the select arm 12A is rotated in the counterclockwise direction, and shifts from the position (C) indicated by the dotted line to the position (C ') indicated by the solid line. On the other hand, since the select arm 12B is rotated clockwise, it shifts from the position (D) indicated by the dotted line to the position (D ') indicated by the solid line. Further, the positioning arms 13A and 13B are respectively moved from the symbol (e) to the symbol (e ′) and from the symbol (f) to the symbol (f ′) via the fan gears 12b, 12b and the coaxial gears 13b, 13b. Is turned to In addition, the rotation of the select arms 12A and 12B causes the link arm 14 to move from the position (G) in the X2 direction.

When the large-diameter disk DL is inserted,
The width W1 between the contact pins P1-P1 is the largest because the diameter RL of the large-diameter disk DL is larger than the contact pins P1-P1.
This is the case of the code DL1 passing between them. When the large-diameter disk DL is further inserted, the rear portion of the large-diameter disk DL (Y1
Since the contact pins P1 and P1 move in the direction approaching each other along the shape of (side), the width interval between the contact pins P1 and P1 is temporarily reduced. However, as the large-diameter disk DL further enters in the Y2 direction, the connection pins P2 and P2
Will come into contact with each other. Therefore, the width W1 between the abutting pins P1 and P1 that has been temporarily narrowed is expanded again by the edge of the large-diameter disk DL. Since the connection pins P2 and P2 are provided at the tips of the selection arms 11 and 11 more than the contact pins P1 and P1, the selection arms 1
The amount of rotation of 1, 1 is maximized when the diameter of the large-diameter disk DL passes between the connection pins P2 and P2.

When the disk DL moves to the position DL2, the select arms 12A and 12B and the positioning arms 13A and 13B are in the most rotated state.
The link arm 14 reaches the position indicated by the symbol (g ') moved most in the X2 direction. When the link arm 14 moves to the position (g), the projection 14b of the link arm is locked by the lock claw 20b of the lock member 20, and the link arm 1
4 is in a locked state. When the link arm 14 moves, the protrusion 15b protruding from the rotation arm 15 moves in the inclined guide groove 14a of the link arm 14, and moves from the position (H) on the Y1 side to the position (H) on the Y2 side. Move to the position of (h '). In this movement, the long hole 16 of the switch arm 16 is moved.
The pivot arm 15 is pivoted clockwise from the position indicated by the dotted line (i) to the position indicated by the dashed line (nu) with the convex portion 15c inserted into the fulcrum as a fulcrum.

The link arm 14 is locked when the large-diameter disk DL moves from the code DL1 to the code DL2 as described above, and when the selection arms 11, 11 are temporarily narrowed and then expanded again. However, for example, the connection pin P2 may be
1, the large-diameter disc DL
The rotation angle of the selection arms 11 and 11 in the (b ') direction at L2 becomes shallow, and at this time, the positioning arms 13A and 13B do not rotate to the positions indicated by the solid lines in FIG. In this case, when the disk DL is transported to the position indicated by DL3, the positioning pins 13a, 13a are pushed by the Y2 side edge of the disk DL, and the positioning arms 13A, 13B are shown by solid lines in FIG. The link arm 14 is locked at this point.

As described above, when the link arm 14 is locked, the large-diameter disk DL is positioned by the positioning pins 13a, 13a at the positions indicated by the solid lines in FIG. Ta
Match the center of At this time, the selection arms 11, 11 are held at positions close to the directions of the side plates 1a and 1b, respectively. Accordingly, the connection pins P2 and P2 are separated from the edge of the large-diameter disk DL, and the connection pins P2 and P2 do not press against the peripheral edge of the disk DL being driven, thereby preventing rotation from being hindered.

When the center of the large-diameter disk DL is transported to the position indicated by reference numeral DL3 sandwiched between the turntable Ta and the clamper 27, the leading end of the large-diameter disk DL on the Y2 side is positioned at the reference numeral (nu). The trigger pin 15a of the rotating arm 15 is pressed in the Y2 direction. Therefore, the rotating arm 15
Is slightly rotated about the convex portion 15b at the position of the symbol (H) to reach the position of the symbol (L).

When the rotating arm 15 is rotated in the direction (R) by pressing the trigger pin 15a at the edge of the large-diameter disk DL in the Y2 direction, a convex portion provided on the other end of the rotating arm 15 is provided. 15c is the long hole 16 of the switch arm 16.
a is slightly pressed in the Y1 direction in the figure, and the switch arm 16 itself is slightly moved in the Y1 direction. As described above, the locking portion 1 is provided at the end of the switch arm 16 on the Y1 side.
6b are formed. When the switch arm 16 moves in the Y1 direction, the locking portion 16b presses the pressed portion 18c of the rack arm 18, so that the rack arm 18 is moved in the illustrated Y1 direction. By this movement, the rack portion 1 formed at the tip of the rack arm 18 on the Y1 side is moved.
8e meshes with the large gear 23a provided in the disk transport means G.

The large gear 23a is one of a group of gears 23 for transmitting the driving force of the driving motor to the transport roller 22, and is rotated in the α1 direction in the figure. Therefore, when the rack portion 18e meshes with the large gear 23a, the rack arm 18 is pulled by the large gear 23a in the Y1 direction shown, the pressed portion 18c moves away from the locking portion 16b, and the entire rack arm 18 moves in the Y1 direction shown. I do.

When the rack arm 18 moves in the Y1 direction in the figure, the transport bracket 21
8 (A) to 8 (C), the transport roller 22 descends in the Z2 direction, and enters the disk non-clamping state at the time of FIG. The feed force to the is cut off. When the transport bracket 21 rotates, the pressing portion 21c bent at the center of the transport bracket 21 presses a switch (not shown) provided on the sub-housing 2 side. Upon receiving this signal, the power supply is cut off and the drive motor stops.

When the rack arm 18 is moved in the Y1 direction, the Y2 side edge of the guide groove 18a provided near the rack 18e
7c pushes in the Y1 direction. Therefore, the slider 17 is also moved in the Y1 direction integrally with the rack arm 18.

FIG. 9 is a plan view showing the relationship between the lock mechanism and the lock member. As shown in FIGS. 2 and 9, when the slider 17 moves in the Y1 direction, the lock mechanism 19 that has locked the protrusion 20c of the lock member 20 also moves in the Y1 direction, but the protrusion 20c of the lock member 20 moves. Is in that position without moving. Therefore, when the claw portion 19a of the lock mechanism 19 comes into contact with the convex portion 20c, it is relatively pressed in the Y2 direction. Therefore, the lock mechanism 19 at the position shown by the symbol (e) rotates counterclockwise about the rotary shaft 17f as shown by the broken line (a). When the slider 17 further moves in the Y1 direction, the claw portion 19a rides over the convex portion 20c and the locked state is released.
In addition, since the urging member S4 for urging the lock mechanism 19 in the Y1 direction is stretched over the lock mechanism 19, the lock mechanism 19 is rotated counterclockwise as indicated by reference numeral (W). Then, the urging member S4 is extended. Therefore,
When the locked state is released, the urging force of the urging member S4 causes
The lock mechanism 19 returns in the clockwise direction as indicated by the symbol (f).

When the slider 17 moves in the Y1 direction, the locking portion 17 of the slider 17 shown in FIGS.
k also moves in the Y1 direction. The locking portion 17k is opposed to a through hole 32a formed at one end of an L-shaped rotating piece 32 rotatably provided on the second disk guide 10. The locking piece 17k and the through hole 32a
Are connected by a connecting pin. When the slider 17 moves in the Y1 direction, the rotating piece 32 rotates clockwise in FIG. 3, and moves from the position (Y) to the position (Y ′). A U-shaped groove 32b is formed at the other end of the rotating piece 32, and a connection shaft 30D provided on a connection portion 30C of the lifting member 30 is inserted into the U-shaped groove 32b. Therefore, when the rotating piece 32 rotates clockwise in FIG. 3, the elevating member 30 is moved in the X2 direction shown. The elevating member 30 in which the rotating piece 32 rotates in the counterclockwise direction in FIG. 3 is moved to X1 in the figure. That is, as described above, when the rotating piece 32 is rotated between the symbol (Y) and the symbol (Y ′), the lifting member 30 is moved in the X2 direction in the figure. As a result of this movement, the clamper 27 descends and is magnetically attached to the turntable Ta as described above, so that the large-diameter disk DL is sandwiched between the turntable Ta and the clamper 27.

When the slider 17 further moves in the Y1 direction, the bottom portion 17h provided on the Z1 side of the slider 17 slightly presses the locking portion 16b of the switch arm 16 in the Y1 direction. By this pressing, the rotating arm 15 is fixed at a position slightly moved in the Y2 direction from the position indicated by the symbol (（) in FIG. Therefore, the large-diameter disk DL does not reach the elastic contact by the trigger pin 15a. As shown in FIGS. 8A to 8C, when the large-diameter disk DL is clamped, the transport roller 22
Since the disc DL is rotated in two directions, the large-diameter disc DL is also placed on the turntable Ta after moving in the Z2 direction. That is, the large-diameter disk DL is moved in the direction of the tip of the trigger pin 15a formed in a tapered shape.
A slight clearance margin is formed between the edge of L and the trigger pin 15a. Therefore, the large-diameter disk DL can freely rotate without coming into contact with the trigger pin 15a.

(Ejecting Operation of Large-diameter Disk) The large-diameter disk DL is ejected by, for example, manually operating an ejection button (not shown) provided on the decorative plate 3 or the like. When the operation button is operated, the rotation of the spindle motor M rotating the turntable Ta is stopped. Further, a rotation drive command in a direction opposite to that during insertion is issued to the drive motor for rotating the transport roller 22 (clockwise direction in FIG. 9). Therefore, as shown in FIG.
, And the rack arm 18 is moved in the Y2 direction through the rack 18e. The edge of the guide groove 18a of the rack arm 18 on the Y1 side is the slider 1
7 is pressed in the Y2 direction. Therefore, the slider 17 also moves together with the rack arm 18 in the Y2 direction.

When the slider 17 moves in the Y2 direction, the turning piece 32 is turned in the counterclockwise direction in FIG. 3 so that the lifting member 30 moves in the X1 direction.
At this time, as shown in FIG. 5, guide grooves 30a, 30B formed in guide bars 30A, 30B constituting the elevating member 30.
0b moves from the position indicated by the dotted line to the position indicated by the solid line. Therefore, the support portions 28b and 29b of the wing portions 28 and 29 climb up the inclined grooves of the guide grooves 30a and 30b and move to the upper side (Z1), and the wing portions 28 and 29 are in a horizontal posture as shown by the solid line in the drawing. Is returned to. At this time, the wings 28 and 29
7 is lifted upward (Z1 direction) in the figure, the clamper 27 separates from the turntable Ta, moves in the Z1 direction (sub-housing 2 side), and enters the non-clamp state.

In general, when the entire clamper 27 is separated from the magnetically attached turntable Ta at once, a very large force is required.
It is preferable that, after a part of 7 is separated from the turntable Ta, the remaining part is separated. To do this, the timing for lifting the wings 28 and 29 is made different from each other by changing the lengths of the inclined grooves of the guide grooves 30a and 30b. For example, when the guide groove 30b side is formed long, the wing 28
The moving time of the wing portion 29 can be delayed as compared with the moving time in one direction. Therefore, the end of the clamper 27 on the X1 side is separated from the turntable Ta first,
Thereafter, the end portion on the X2 side can be separated, and the clamper 27 and the turntable Ta can be easily separated to be in an unclamped state.

Further, as shown in FIG.
In the movement of, the lock mechanism 19 is returned to the original position (the position indicated by the symbol (E)). That is, as described above, when the disc is inserted, the lock mechanism 19 is moved to the sign (f). When the slider 17 moves in the Y2 direction during ejection, the lock mechanism 19 also moves in the Y2 direction. On this occasion,
The inclined surface 19c on the Y2 side constituting the claw portion 19a of the lock mechanism 19 presses the convex portion 20c of the lock member 20 in the Y2 direction. Therefore, since the lock member 20 is slightly rotated in the counterclockwise direction, the lock of the projection 14b of the link arm 14 to which the lock claw 20b has been locked is released. As a result, the link arm 14 is moved from the position (G ′) in FIG. 7 to the position (G) that is the original position by the urging force of the urging member S1. Further, with the movement of the link arm 14, the positioning arm 13A moves from the position of the symbol (E ') to the position of the symbol (E), and the positioning arm 13B moves from the position of the symbol (F') to the position of the symbol (F). Respectively. In addition, select arm 1
The 2A and 12B and the selection arms 11 and 11 return to their original positions (the positions indicated by symbols (C), (D), (A) and (B)), respectively.

By returning each member to the original position in this way, the large-diameter disk DL in the unclamped state is pushed out to the Y1 side. That is, the positioning arm 13
A, 13B, the positioning pins 13a, 1
3a presses the Y2 side edge of the large-diameter disk DL in the Y1 direction, so that the large-diameter disk DL is pushed out.

As shown in FIG. 4, when the slider 17 moves in the Y2 direction, the locking portion 17j 'for locking the urging member S6 is pressed in the Y2 direction. Therefore, the locking portion 17
j 'returns to the reference numeral 17j, and the reference numeral 25d', which is the other end of the urging member S6, also returns to the position of the reference numeral 25d. Is restored. By this return, the transport bracket 21 in the non-disk-holding state moves to the disk-holding state (the state shown in FIG. 8A) and the gear group 2
The drive force of the drive motor via the drive roller 3 is transmitted to the transport roller 22. Therefore, the large-diameter disk DL extruded in the Y1 direction is further transported in the Y1 direction by the feed force of the transport roller 22, and is discharged from the insertion port 3a.

When the large-diameter disk DL is in the clamped state (state of DL3), the first detecting means 33 is in the OFF state (see FIG. 7). In this disk device A, FIG.
From the clamped state shown in
Is discharged, and the end of the large-diameter disk DL on the Y2 side passes through the third detecting means 35, and the third detecting means 35 is turned off.
Is set so that the rotation of the transport roller 22 is stopped when the state is reversed from ON to ON. That is, the fixed position D at which the center hole of the large-diameter disk DL is exposed from the insertion port 3a.
It can be stopped at L0. This allows a user or the like to take out the large-diameter disc DL with the center hole and the edge sandwiched by hand. Therefore, the large-diameter disk DL can be handled without directly touching the recording surface on which important data is written, so that the recording surface can be hardly damaged.

FIG. 10 is a plan view showing the insertion of a small-diameter disk. As shown in FIG. 10, even when the small-diameter disk DS is inserted from the insertion opening 3a, the first detection unit 33 detects the small-diameter disk DS, and the transport roller 22 starts rotating in the normal rotation direction. Similarly, in the case of the large-diameter disk DL, the tip of the small-diameter disk DS is sandwiched between the pressing guide 9 and the transport roller 22, and the small-diameter disk DS is moved to the inner part of the apparatus (Y
2) transported in the direction.

However, unlike the case of the large-diameter disc DL, as shown in FIG.
Is smaller than the width interval W1 between the contact pins P1 and P1 and the width interval W2 between the connection pins P2 and P2 (RS <W
1, RS <W2), and are conveyed without rotating the selection arms 11, 11 and the selection arms 12A, 12B. Further, for example, when the small-diameter disc DS is inserted into one of X1 and X2 in a one-sided manner, the small-diameter disc DS may abut on the one-sided contact pin P1 or the connection pin P2. However, even in this case, the transport rollers 2
Since 2 has a tapered surface shape, the feed force of the transport roller 22 acts to center the small-diameter disk DS in the center direction of the disk device. Therefore, the contact pin P1
Alternatively, it does not reach the point where the connection pin P2 is pressed to rotate the selection arms 11, 11 and the selection arms 12A, 12B. That is, the small-diameter disc DS is transported as it is in the Y2 direction, and the positioning arms 13A and 13A
B almost simultaneously contact the positioning pins 13a, 13a,
The position where the disk feeding operation is stopped is the disk clamping position. Further, the disk device A can be used not only horizontally but vertically as shown in FIG. 2 with the side plate 1a or 1b as the bottom plate.

Further, if the urging force (the urging force of the urging member S1) for maintaining the selection arms 11 and 11 at the position shown by the solid line in FIG. 10 is increased, the edge of the conveyed small-diameter disc DS is increased. When the contact arm contacts the contact pin P1 or the connection pin P2, the contact force does not cause the selection arms 11 and 11 to rotate in the left and right directions from the state shown in FIG.

Further, as shown in FIG. 3, the small-diameter disk DS hits the connection pins P2 and P2 such that the small-diameter disk DS is pushed by the transport roller 22 in the Y2 direction. Since the support shafts 11a, 11a serving as the pivots of the selection arms 11, 11, which support the connection pins P2, P2, are located on the Y1 side, the support force of the transfer roller 22 causes the connection pins P2, P2 to move to the connection pins P2, P2. Even if a force is applied in the Y2 direction, the selection arms 11, 11 are unlikely to rotate from the position in FIG.

As described above, when the small-diameter disc DS is carried in, the contact pin P1 and the connection pin P2 do not move from the position shown in FIG. Therefore, even if the small-diameter disk DS is inserted from a position offset in the X1 direction or the X2 direction, the small-diameter disk DS is guided inward by the contact pin P1 and the connection pin P2 so as to almost equally hit the positioning pins 13a, 13a. You will be guided.

As described above, the positioning pins 13
a and 13a are set in both directions (side plate 1a or side plate 1b side) with respect to a line L1 connecting the center axis 13c of the positioning arm 13A or 13B and the center of the turntable Ta. The feed force acts on the small-diameter disk DS in the Y2 direction, but unlike the case of the large-diameter disk DL as shown in FIG.
The contact pin 13a on the 3A side is counterclockwise in FIG. 10, and the contact pin 13a on the positioning arm 13B side.
, A force pressing in the clockwise direction acts on each. In addition, clockwise with respect to the select arm 12A,
Rotation in the counterclockwise direction occurs with respect to the select arm 12B. However, since the select arm 12A is provided with the regulation protrusion 36 that regulates the clockwise rotation, the select arm 12A is As described above, it does not rotate clockwise. Therefore, since the link arm 14 does not move, the rotation of the select arm 12B does not occur.

That is, the positioning arms 13A, 13B
Does not occur, the small-diameter disk DS is stopped at that position. The small-diameter disk DS is placed on the turntable Ta at the clamp position DS1 where the small-diameter disk DS stops against the positioning pins 13a. Thus, the small-diameter disk DS
Is carried in, the positioning pins 13a, 13a are at the positions shown in FIG.
Even if a lock mechanism for locking 3B at the position shown in FIG. 10 is not provided, the small-diameter disk DS does not rotate from the position shown in FIG.

Further, at the position indicated by the reference numeral (t) in FIG. 10 (the same as the position (i)), that is, at a position slightly before the small-diameter disc DS comes into contact with the positioning pins 13a, 13a,
The trigger pin 15a of the rotating arm 15 indicated by the dotted line is located. Accordingly, when the trigger pins 15a are pressed against the positioning pins 13a, 13a, they are pressed against the edge of the small-diameter disk DS.
Slightly rotated to the position. That is, the rotating arm 1
The fifth convex portion 15b is rotated on the Y1 side of the inclined guide groove 14a of the link arm 14, and moves the switch arm 16 in the Y1 direction in the drawing as in the case of the large-diameter disk DL described above. . The subsequent operation at the time of insertion is the same as that for the large-diameter disk DL.

(Small-Diameter Disk Ejection Operation) The operation of ejecting a small-diameter disk is basically the same as the operation of ejecting a large-diameter disk. Therefore, the differences from the large-diameter disk will be described. In the small-diameter disk DS, the selection arms 11, 11,
Select arm 12A, 12B, positioning arm 13
Since the A and 13B and the link arm 14 do not move from the positions shown in FIG. 10, the discharging operation is mainly performed by the rotating arm 15, the switch arm 16, the slider 17, the rack arm 18, and the disk transfer means G. That is, when the eject button is pressed, the rack arm 18, the slider 17, and the switch arm 16 are moved to their original positions in the Y2 direction in the same manner as in the case of the large-diameter disc DL. Then, with the movement of the switch arm 16, the rotating arm 15 is returned from the position of the symbol (v) to the position of the symbol (v). By this rotation, the end of the small-diameter disk DS is pushed out in the Y1 direction by the trigger pin 15a.
Will be securely held between them. Then, the small-diameter disk DS is inserted into the insertion port 3 by the feed force of the transport roller 22.
a to the outside of the disk device A.

However, the stopping of the transport roller 22 is performed at the timing when the second detecting means 34 is once inverted from the ON state to the OFF state when the small-diameter disk DS is carried out and moved, and is then inverted again to the ON state. By stopping the transport roller 22 at this timing, the small-diameter disc DS
Similarly, in the case of the large-diameter disk DL, it can be stopped in a fixed state DS0 in which the center hole is exposed from the insertion opening 3a.
Therefore, a user or the like can take out the small-diameter disk DS while holding the center hole and the edge by hand. In this apparatus, the stop position when the large-diameter disk DL is ejected and the stop position when the small-diameter disk DS is ejected have almost the same location where the center hole of the disk stops. Therefore, in the case of the large-diameter disk DL and the small-diameter disk DS, a finger can be inserted into the center hole and pulled out, and the recording surface is not stained.

As described above, the disk device A of the present invention
Then, the insertion of the disc D is detected by turning off the first detection means 33. Further, since the large-diameter disk DL and the small-diameter disk DS have a center hole, when the center hole passes through the first detecting means 33, the detection signal switches from OFF to ON to OFF. Therefore, by recognizing this switching, the insertion port 3a
It is possible to detect that the object inserted from at least is the disk D. Further, the discrimination between the large-diameter disc DL and the small-diameter disc DS is performed by the first detecting means 33. That is, when the large-diameter disk DL is in the clamped state as shown in FIG. 7, the first detection means 33 is OFF. On the other hand, when the small-diameter disk DS is in the clamped state as shown in FIG. 10, the first detection means 33 is OFF. Therefore, it is possible to determine the diameter of the disk from the ON / OFF state of the first to third detection means 33, 34, 35. The disc is determined by the TOC recorded on the recording surface of the disc.
May be performed after reading the contents of.

When foreign matter other than a disc, for example, various cards, is erroneously inserted from the insertion slot 3a,
Unlike the case of the above-mentioned disk, the first detecting means 33 does not switch from OFF to ON to OFF at the time of insertion. Therefore, the disk device A is provided with the first detecting means 33
Turns off once within a predetermined time after turning off once
If no switch to the disc is detected, it can be determined that a foreign substance other than the disc has been inserted. In this case, the foreign matter may be discharged as it is by rotating the conveyance roller 22 in the reverse direction.
It is possible to avoid a situation where various cards are inserted into the device and cannot be removed.

Further, in the disk device A of the present invention, foreign matter other than a disk is
For example, it is possible to prevent various cards from being inserted by mistake. For example, the selection arm 11, 1
1 are rotated in a direction approaching each other, and the connection pins P2 and P2 are located closer to the apparatus side (Y1 side) than the position of the transport roller 22, and the support shaft 11a of the selection arms 11 and 11 is provided. And the connecting pins P2 and P2 and the insertion direction of the disc are in a nearly vertical positional relationship. Furthermore, since the connection pins P2 and P2 approach each other, it is easy to simultaneously press them. Therefore, since the selection arms 11 and 11 can be easily pushed open only by pushing in the Y2 direction, foreign substances other than the disc D are easily inserted.

On the other hand, in the disk device A, the connection pins P2 and P2 are located on the inner side (Y2 side) of the device with respect to the position of the transport roller 22, and are further apart from each other (FIG. reference). Since the connection pins P2 and P2 are urged by the urging member S1 in a direction approaching each other, a resistance force acts when the connection pins P2 and P2 are pushed to both sides. On the other hand, a part of the feeding force of the disc applied by the transport roller 22 acts as a component force, and the connecting pins P2 and P2 are respectively moved to both sides (X
1 and X2 directions). Further, the component force due to the peripheral edge of the disk or the like efficiently acts on the connection pins P2 and P2 and becomes larger than the resistance force, so that the connection pins P2 and P2 can be easily pushed out.

On the other hand, in the case of cards other than the circumference, such as various cards, it is difficult to increase the component force, and it is likely to be smaller than the resistance force. Therefore, since the connection pins P2 and P2 cannot be easily pushed out at the edge other than the circumference, insertion of various cards and the like can be prevented.

As described above, the disk device of the present invention can be made thin, and for example, a slot-in type disk device that can be commonly used for docking stations, PC monitors, TVs, and the like can be realized. .

[0091]

As described above, according to the present invention, in the disk device of the slot-in type, the center hole of the disk can be securely fitted to the projection of the turntable, and the disk clamping mistake can be prevented. Also, the disc can be carried in without hitting the turntable or the like.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a disk device according to the present invention;

FIG. 2 is a perspective view showing the main housing 1 shown in FIG. 1 from the back side;

FIG. 3 is a plan view of FIG. 2 viewed from the direction of arrow III;

FIG. 4 is a partial side view showing one side plate of the transport bracket,

FIG. 5 is a partial front view of a disk device showing a clamp mechanism,

FIG. 6 is a front view of the disk device,

FIG. 7 is a plan view showing the operation of inserting a large-diameter disc;

8A and 8B are side cross-sectional views showing the relationship between the presser guide and the disk transport means, wherein FIG. 8A is a disk transport state, FIG. 8B is a transport complete state, and FIG. ,

FIG. 9 is a partial plan view showing a relationship between a lock mechanism and a lock member.

FIG. 10 is a plan view showing the operation of inserting a small-diameter disk,

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main housing 1a, 1b Side plate 2 Sub-housing 3 Decorative plate 3a Insertion opening 4 Disk drive unit 8 First disk guide 9 Holding guide (holding member) 10 Second disk guide 11 Selection arm (selection member) 12 Select Arms 13A, 13B Positioning arm 13a Positioning pin (positioning member) 14 Link arm 15 Rotating arm 15a Trigger pin 16 Switch arm 17 Slider 18 Rack arm 19 Lock mechanism 20 Lock member 21 Transport bracket 22 Transport roller 23 Gear group 25 Speed-up link 26 Clamp mechanism 27 Clamper 28, 29 Wing part 30 Elevating member 30A, 30B Guide bar 30a, 30b Guide groove 31A, 31B Wing part guide 32 Rotating piece 33 First detecting means 34 Second detecting means 35 Third detecting means 40 shutter machine 41 Shutter plate A Disk device D Disk (Large-diameter disk and small-diameter disk) DL Large-diameter disk DS Small-diameter disk K Damper member G Disk transport means P1 Contact pin P2 Connection pin S1, S2, S3, S4, S5, S6 Member Ta Turntable RS Diameter of small diameter disc DS RL Diameter of large diameter disc DL W1 Width interval between contact pins P1-P1 W2 Width interval between connection pins P2-P2

Claims (5)

[Claims] An insertion slot (3a) into which a disc is inserted.
A disk drive unit (4) having a turntable (Ta) for supporting the disk; and a disk transport means (G) for transporting the disk inserted from the insertion slot (3a) onto the turntable (Ta). In the disk device described above, the disk transport means (G) includes a transport roller (22) and a holding member (9) for sandwiching the disk to provide a transport force, and a motor for rotating the transport roller (22). When the center hole of the disc inserted from the insertion slot (3a) and transported by the disk transport means (G) reaches the turntable Ta, the transport roller (22) and the pressing member (9) are moved to the disk. Driving means (17, 25) for moving in the direction of the turntable (Ta) while holding it
A disk device characterized by being provided with: 2. The center hole of the disk is a turntable Ta.
2. The disk device according to claim 1, wherein the nipping of the disk by the transport roller (22) and the pressing member (9) is released at or immediately before the disk is inserted into the convex portion. 3. A transport bracket (21) supporting a transport roller (22) is moved so as to descend in the direction of a turntable (Ta), and a pressing member (9) follows the transport roller (22). The pressing member (9) is urged toward the conveying roller (22) so that the pressing member (9) can move.
3. The disk device according to claim 1, wherein when the center hole of the disk is set on the turntable Ta, the disk can follow the direction of the turntable (Ta) until the disk separates. 4. The center of the transport roller (22) and the pressing member (9) located on the turntable (Ta) side is disposed closer to the turntable (Ta) side than the other center. The disk device according to any one of claims 1 to 3, wherein a leading end of the disk, which is sandwiched between the transport roller (22) and the pressing member (9), is inclined in a direction away from the turntable (Ta). 5. A drive means (17, 25) for connecting a transport roller (22) and a pressing member (9) to a turntable (T).
a), the drive means (17,
The disk device according to any one of claims 1 to 4, wherein the shutter (41) provided in the insertion slot (3a) is driven in a direction to close the insertion slot by (25).