JPH05282767A - Stocker moving device - Google Patents

Abstract

PURPOSE:To move a stocker by small-sized, simple constitution by forming a slide groove which has a projection guide fixed to the stocker and moving the projection in a specific direction by rotating operation. CONSTITUTION:The slide groove 61A is formed in the flank of a cam 61 and when the cam 61 is rotated, the guide projection 31E fixed to the stocker 31 is slid along the groove 61A to move up and down the stocker 31. Thus, the stocker 31 is moved up and down and the cam 61 can be stopped at a specific position according to the output signal of a rotary encoder 65 which detects the rotational position of the cam 61. Then a desired tray among trays 42-46 put in the stocker 31 can be moved to a specific payoff and insertion position of a disk insertion slot 41. At this time, a control circuit sends a control signal S12 out to a driving circuit to drive and control the up/down movement of the stocker 31. Further, the control circuit detects the position of the stocker 31 from the position detection signal from the encoder 65. Consequently, the stocker 31 can be moved by the small-sized, simple constitution.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] Industrial Application Conventional Technology (FIG. 15) Problem to be Solved by the Invention (FIG. 15) Means for Solving the Problem (FIG. 12) Action (FIG. 12) Embodiment (1) Disk Reproducing Device (FIGS. 1 to 11) (2) Movement of stocker by cam (FIGS. 12 to 14) (3) Other embodiment Effect of the invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stocker moving device, and is suitable for application to, for example, a stocker moving device for moving a stocker containing a plurality of disk-shaped recording media.

[0003]

2. Description of the Related Art Conventionally, as a disk reproducing apparatus for selectively reproducing a desired disk from a plurality of disk-shaped recording media (hereinafter referred to as a disk), for example, Japanese Patent Laid-Open No. 3-22253. Some are disclosed in Japanese Patent Publication.

In this disk reproducing apparatus, a slider having a stepped cam groove is used as means for vertically moving a stocker for housing a plurality of disks.

That is, as shown in FIG. 15, projections 3A and 3A are provided on the side surface of a stocker 3 which houses a plurality of disks.
B, 3C and 3D are provided, and the protrusions 3A and 3B are slidably inserted in the step-like cam grooves 5A and 5B formed in the slider 5, respectively. Similarly, the protrusions 3C and 3D are slidably inserted into the cam grooves 6A and 6B of the slider 6, respectively.

Accordingly, the sliders 5 and 6 are respectively moved by the arrow x.
By moving in the direction indicated by or in the opposite direction,
The stocker 3 is stepwise moved in the direction of arrow y by the number of steps of the cam grooves 5A, 5B and 6A, 6B formed in the sliders 5 and 6.
It is designed to be moved in the direction indicated by or in the opposite direction.

[0007]

However, when attempting to move the stocker 3 using this type of slider 3, the slider 3 moves in the moving direction as the number of steps of the cam grooves 5A, 5B and 6A, 6B increases. The length must be increased, and there is a problem in that the disk reproducing device equipped with the stocker 3 and the sliders 5 and 6 becomes large accordingly. Further, there is a problem that the mounting area of the stocker moving means becomes large as the sliders 5 and 6 are slid, and the disk reproducing apparatus mounting the stocker becomes large.

The present invention has been made in consideration of the above points, and an object thereof is to propose a stocker moving device capable of moving a stocker with a much simpler structure.

[0009]

In order to solve such a problem, according to the present invention, a recording medium DISK is housed and fixed to the stocker 31 and a stocker 31 which moves in a predetermined direction by predetermined support members 33A and 33B. Guide protrusion 3
A cam 61 having a sliding groove 61A for guiding 1E to move the guide protrusion 31E in a predetermined direction a by a rotating operation, and a cam 61 for moving the stocker in the predetermined direction a; 55, 56, 57, 58, 59,
62 and 120, and position detection means 65 for detecting the rotational position of the cam 61.

[0010]

The guide projection 31E fixed to the stocker 31 is inserted into the sliding groove 61A formed in the cam 61, and the cam 61 is rotated to move the guide projection 31E in a predetermined direction along the sliding groove 61A. (The direction indicated by the arrow a or the opposite direction). Therefore, the stocker 31 to which the guide protrusion 31E is fixed also moves in the predetermined direction in the same manner.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings.

(1) Overall Structure of Disk Reproducing Device In FIG. 1, reference numeral 30 indicates a disk reproducing device as a whole, and sliding shafts 33A and 33B are vertically set on a chassis 40 and fixed to the sliding shafts 33A and 33B. Stocker 31
Sliding bearings 31A and 31B provided on the side surface of the are engaged slidably.

That is, as shown in FIG. 2 when viewed from the side of the disk insertion port 41, the stocker 31 has a plurality of trays 42, 43, 44, 45 on which disks can be mounted.
And 46 are stored. This plurality of trays 42, 4
One end side of each of 3, 44, 45 and 46 is held by the guide protrusions 48B, 48C, 48D, 48E and 48F of the side plate 48. On the other end side of each tray 42, 43, 44, 45 and 46, as shown in FIG.
Sliding shafts 47A, 47B, 47C, 4 by 9 and 54
7D and 47E are supported, and the sliding shaft 47A,
47B, 47C, 47D and 47E for each tray 42, 4
Sliding bearings 42A fixed to 3, 44, 45 and 46,
The trays 42, 43, 44, 45 and 46 are held via 43A, 44A, 45A and 46A.
In the stocker 31, the upper plate 31C is fixed on the guide protrusions 48A and 49A.

Thus, the plurality of trays 42, 43, 4
The stocker 31 accommodating 4, 45 and 46 is fixed on the base 50. The base 50 has a guide hole 50A (FIG. 2) formed on the front panel side.
A projection 51A provided at the tip of the elevator arm 51 can slide along A. The elevator arm 51 is rotatably supported by the chassis 40 by a rotation shaft 51B.

The elevator arm 52 is a chassis 4
The protrusion 52B provided at the tip end is slidable along the guide hole 40A formed in 0, and is rotatable with respect to the base 50 of the stocker 31 by the rotation shaft 52A. It is pivotally supported. Further, as shown in FIG. 3, elevator arms 65 and 66 are similarly provided on the side surface side of the stocker 31.
The stocker 31 is supported by the elevator arms 51 and 52 when moving up and down.

Here, the stocker 31 holding the trays 42, 43, 44, 45 and 46 is attached to the sliding shafts 33A and 33B.
As a driving means for moving up and down along the path, a stocker moving device 32 is provided as shown in FIG.
The pulley 55 is attached to the output shaft of the motor M1 fixed to a part of 0.
Is fixed, and the rotation of the pulley 55 causes the belt 56 to rotate.
It is adapted to be transmitted to the second pulley 57 via.

A gear 58 is formed on the second pulley 57, and a rotational force is applied to the cam 61 via a gear 59 meshed with the gear 58 and a gear 60 integrally formed on the gear 59. It is transmitted to the gear 62 provided. Accordingly, the rotational force of the motor M1 is transmitted to the cam 61, and the cam 61 can be rotated by rotationally driving the motor M1.

Here, a rotary encoder 65 is provided at the center of rotation of the cam 61, and the rotary position of the rotary encoder 65 (that is, the rotary position of the cam 61).
Is designed to be able to detect.

A sliding groove 61A as shown in FIG. 5 is formed on the side surface of the cam 61, and the guide projection fixed to the stocker 31 along the sliding groove 61A by rotating the cam 61. By sliding 31E, the stocker 31 can be vertically moved in the direction indicated by arrow a or in the opposite direction. Accordingly, the stocker 31 is moved up and down and stopped at a predetermined rotation position of the cam 61 based on the output signal of the rotary encoder 65 which detects the rotation position of the cam 61. Tray 42 stored in
A desired tray out of 46 can be moved to a predetermined sweeping and inserting position facing the disc insertion opening 41.

The sliding bearings 42A, 43A, 44A, 45A of the trays 42 to 46 housed in the stocker 31 are also provided.
And 46A each have a concave engaging portion 42 at the tip.
B, 43B, 44B, 45B and 46B are formed, and the engaging portions 42B, 43B, 44B, 45B and 4 are formed.
6B, the engaging portion of the tray located at the height position P of the insertion port 41 (hereinafter referred to as the transportable position) slides on the slide shaft 63 in the direction of arrow b in the recording medium transport device 68 of FIG. It is adapted to be engaged with the engaging protrusion 64A of the moving sliding bearing 64 and to be able to slide in the direction of arrow b (or in the direction opposite to the arrow b) according to the movement of the sliding bearing 64. Therefore, the tray moved to the transportable position P can be transported along the respective sliding shafts 47A, 47B, 47C, 47D and 47E.

The position of the sliding bearing 64 can be detected by position detecting elements 66A, 66B, 66C fixed to the chassis 40, which are, for example, photo sensors.

Here, as a means for moving the sliding bearing 64 along the sliding shaft 63, as shown in FIG.
A pulley 71 is fixed to an output shaft of a motor M2 which is fixed to a part of the motor M2, and the rotation of the pulley 71 is transmitted to a second pulley 73 via a belt 72.

A gear 74 is formed on the second pulley 73, a gear 75 is meshed with the gear 74, and a gear 77 is meshed with a gear 76 integrally formed on the gear 75. Further, a gear 78 integrally formed with a belt driving gear 79 is meshed with the gear 77.

Therefore, by rotating the motor M2, the gear 79 for driving the belt can be rotated.
As a result, the toothed belt 80 meshed with the belt driving gears 79 and 81 can be rotated.
At this time, the sliding bearing 64 fixed to a part of the toothed belt 80 can be moved along the sliding shaft 63.

Therefore, at this time, the tray 42 fixed integrally with the engaging portion 42B engaged with the sliding bearing 64 is along the sliding shaft 63 (that is, the direction indicated by the arrow b or the opposite direction). Direction).

Here, as a method of selecting the tray which is moved by the sliding bearing 64 among the plurality of trays 42, 43, 44, 45 and 46 stored in the stocker 31, the structure described above with reference to FIG. Then, the stocker 31 is moved up and down, and thereby the selected tray is moved to the same height position as the sliding bearing 64.
Any one of 2B to 46B is used as the protrusion 64A of the sliding bearing 64.
Can be engaged with. At this height position P, the height position of the tray in which the engaging portion is engaged with the sliding bearing 64 is the insertion port 41.
It is designed to be equal to the height position of.

Therefore, the selected tray is the motor M.
2 is driven to sweep in the direction indicated by the arrow g, and by driving the motor M2 in the reverse direction, the motor M2 is drawn in the direction opposite to the direction indicated by the arrow g.

Further, as shown in FIG. 8, trays 42 to 46 are provided.
An optical pickup 90 is provided at a position where any one of them is pulled in to the deepest part when viewed from the insertion opening 41. The optical pickup 90 is designed to be movable on the base 91 in the direction indicated by the arrow c or in the opposite direction, and the irradiation position of the light beam for irradiating the disk mounted on the tray is set to the position of the disk. It is designed to move along the recording track.

As shown in FIG. 9, the fixed end 91A of the base 91 is fixed to the chassis 40 of the disk reproducing device 30, and the transition end 91B opposite to the fixed end 91A is indicated by the arrow d. The direction shown in and the opposite direction can be changed.

That is, an engaging shaft 93A is fixed to the transition end 91B of the base 91, and the engaging shaft 93A is obliquely and horizontally in the vertical surface of the slide cam 95 as shown in FIG. It is adapted to engage with the formed guide hole 95A.

Here, the slide cam 95 is adapted to slide in the direction indicated by arrow e or in the opposite direction, and a motor M3 is provided as a drive means for slidingly driving the slide cam 95. There is. That is, the pulley 103 fixed to the output shaft of the motor M3 is engaged with the pulley 103 via the belt 102, and the gear 105 is meshed with the gear 104 integrally formed with the pulley 103. Further, a gear 106 integrally formed with the gear 105 is meshed with a rack 107 formed on the slide cam 95.

Accordingly, by rotationally driving the motor M3, the slide cam 95 can be slid in the direction indicated by the arrow e or in the opposite direction.

Accordingly, by sliding the slide cam in the direction indicated by the arrow e, the engaging shaft 93 of the base 91 is moved.
A moves along the guide hole 95A in the direction indicated by the arrow f. Accordingly, the base 91 on which the engagement shaft 93A is fixed
The transition end 91B (FIG. 9) also moves in the direction indicated by arrow f. Thus, when the slide cam 95 slides to the end portion A of the slide area, the engagement shaft 93A reaches the horizontal area H of the guide hole 95A, whereby the base 91 is formed.
By moving the transition end 91B of (1) to the top, the base 91 becomes substantially horizontal. At this time, slide cam 95
The position of is detected by the position detecting element formed of the micro switch 67 (FIG. 8) being pressed by the protrusion provided on a part of the slide cam 95, and thereby the motor M3 is stopped. ing.

Here, the guide hole 95B of the slide cam 95 is provided.
An engaging shaft 93B fixed to the tip of the rotating arm 96 (FIG. 9) is engaged with the shaft so that it moves up and down in the direction of arrow f or in the opposite direction according to the sliding operation of the slide cam 95. There is. Accordingly, the pivot arm 96 shown in FIG. 9 pivots about the pivot center 96A in response to the vertical movement of the engagement shaft 93B. Further, the engaging shaft 93B of the rotating arm 96
A guide hole 96B is formed in the tip end portion on the opposite side to the tip end portion provided with the engaging projection 97B provided at the tip end portion of the rotating arm 97 in the guide hole 96B. Is slidably engaged along.

Accordingly, the rotating arm 97 is designed to be rotatable about the center of rotation 97A according to the rotating operation of the rotating arm 96, and according to the rotating operation of the rotating arm 97. The pin 98 engaged with the tip of the rotating arm 97 is moved up and down.

Accordingly, in FIG. 9, a plurality of trays 42-4 are provided.
For the positioning hole 42H of the tray 42 which is selected from 6 and has moved to the reproduction position on the optical pickup 90,
By inserting the pin 98 in accordance with the movement of the base 91 in the direction indicated by the arrow f, the tray 42 can be positioned and the tray 42 is carelessly moved in the direction indicated by the arrow b or in the opposite direction. You can keep it from moving.

In this state, the turntable 110 provided on the base 91 presses the disk DISK mounted on the tray 42 against the disk retainer 112 (FIG. 9), whereby the turntable 1 concerned.
The disk DISK can be rotationally driven by rotating 10. At this time, by irradiating the recording surface of the disk DISK mounted on the tray 42 with the light beam from the optical pickup 90 of the base 91, information can be read from the rotating disk DISK.

When the reproducing operation is further completed, the slide cam 95 is slid in the direction opposite to the direction indicated by the arrow e (FIG. 10) to move the transition end 91B of the base 91 to the arrow f.
Move in the opposite direction (ie downward). Thus, by sliding the slide cam 95 to the end of the slide area, the displacement end 91B of the base 91 is displaced to the lowermost part. Therefore, in this state, the turntable 110 of the base 91 is simultaneously moved to the lowermost position to open the disk DISK mounted on the tray 42 and the pin 98 (FIG. 9) of the sub-tray 42. The tray 42 is removed from the positioning hole 42H, and in this state, the tray 42 is moved to the position of the stocker 31.

Here, as shown in FIG. 11, the disc reproducing apparatus 30 is provided with a control circuit 120, and a drive for vertically driving the stocker 31 based on a control signal S10 from the control circuit 120. Circuit 121
It is designed to drive and control.

The position of the stocker 31 when the stocker 31 is moved up and down is input to the control circuit 120 by the position detection signal S11 from the rotary encoder 65,
This allows the control circuit 120 to detect the position of the stocker 31.

Further, the control circuit 120 is controlled by the control signal S12.
Is sent to the drive circuit 122 so that each tray 4
2, 43, 44, 45 or 46 is driven along the sliding bearing 63.

Further, when each tray 42, 43, 44, 45 or 46 is driven along the sliding bearing 63, the tray 4 concerned.
The sliding positions of 2, 43, 44, 45 or 46 are three position detecting elements 66A, 6A provided along the sliding bearing 63.
Position detection signals S13, S14, S from 6B and 66C
By inputting 15 to the control circuit 120, the control circuit 120 can detect this.

Further, the control circuit 120 controls the control signal S16.
Is sent to the drive circuit 123, the moving end 91B of the base 91 on which the optical pickup 90 is mounted is moved up and down.

Further, when the moving end 91B of the base 91 on which the optical pickup 90 is mounted is moved up and down, the moving end 91 is moved.
The position of B is detected by inputting the position detection signal S17 output from the position detection element 67 configured to detect the position of the slide cam 95 to the control circuit 120, and the control circuit 120 is based on the detection result. The drive circuit 123 is driven and controlled.

(2) Movement of Stocker by Cam FIG. 12 shows the structure of the cam 61 according to the present invention. A guide projection 31E fixed to the stocker 31 is inserted in a sliding groove 61A formed on the side surface. By rotating the cam 61, the guide protrusion 31E slides along the slide groove 61A, whereby the stocker 31 moves up and down in the direction indicated by the arrow a or in the opposite direction. There is.

Here, the sliding groove 61A of the cam 61 extends from the outermost circumference to the rotation center O of the cam 61 and has spiral sliding regions G1, F1, G2, F2, G3, F3, which have different curvatures.
G4, F4, and G5 are sequentially formed.

The sliding areas G1, G2, G3, G4 and G5 are formed along an arc centered on the rotation center O of the cam 61, and the guide rod 31E of the stocker 31 is the sliding areas G1 and G2. , G3, G4, G5, the guide protrusion 31E does not move in the arrow a direction and the opposite direction. Therefore, the sliding area G1,
While the guide protrusion 31E slides on G2, G3, G4, and G5, the stocker 31 maintains a state in which it does not move.

The sliding areas F1, F2, F3 and F4 are formed along an arc centered at a position different from the rotation center O of the cam 61, and the guide rod 31E of the stocker 31 is the sliding area. When sliding along F1, F2, F3, F4, the guide protrusion 31E moves in the direction indicated by arrow a or in the opposite direction depending on the rotation direction of the cam 61. Therefore, the stocker 31 accordingly moves in the direction indicated by the arrow a or in the opposite direction only while the guide protrusion 31E slides on the sliding regions F1, F2, F3, F4.

Therefore, as shown in FIG. 13A, when the guide projection 31E of the stocker 31 is in the sliding area G1, the stocker 31 is in the lowermost position, and at this time, the tray 42 is inserted into the disk. The transportable position P is at the same height as the mouth 41.

When the cam 61 rotates in the direction indicated by the arrow r from this state, the guide protrusion 31E slides in the sliding area F1 of the slide groove 61A while the guide protrusion 31E moves in the direction indicated by the arrow a.
Move in the direction indicated by. Therefore, according to this, the stocker 3
Similarly, 1 moves in the direction of arrow a. Then guide protrusion 31
When E reaches the sliding area G2, the stocker 31 reaches the height at which the tray 43 becomes the transportable position P.

Further, when the cam 61 rotates in the direction indicated by the arrow r from this state, the guide protrusion 31E is indicated by the arrow a while the guide protrusion 31E slides in the sliding area F2 of the sliding groove 61A. Move in the direction. Accordingly, the stocker 31 similarly moves in the direction of the arrow a in response to this. After that, when the guide protrusion 31E reaches the sliding area G2, the stocker 31 reaches the height at which the tray 43 becomes the transportable position P.
(Figure 13 (B))

When the cam 61 further rotates in the direction indicated by the arrow r from this state, the guide protrusion 31E is indicated by the arrow a while the guide protrusion 31E slides in the sliding area F3 of the sliding groove 61A. Move in the direction. Accordingly, the stocker 31 similarly moves in the direction of the arrow a in response to this. After that, when the guide protrusion 31E reaches the sliding region G3, the stocker 31 reaches the height at which the tray 44 becomes the transportable position P.
(Figure 13 (C))

When the cam 61 further rotates from this state in the direction indicated by the arrow r, the guide protrusion 31E is indicated by the arrow a while the guide protrusion 31E slides in the sliding area F4 of the sliding groove 61A. Move in the direction. Accordingly, the stocker 31 similarly moves in the direction of the arrow a in response to this. After that, when the guide protrusion 31E reaches the sliding region G4, the stocker 31 reaches the height at which the tray 45 becomes the transportable position P.
(Figure 14 (A))

When the cam 61 further rotates from this state in the direction indicated by the arrow r, the guide protrusion 31E is indicated by the arrow a while the guide protrusion 31E slides in the sliding area F5 of the sliding groove 61A. Move in the direction. Accordingly, the stocker 31 similarly moves in the direction of the arrow a in response to this. After that, when the guide protrusion 31E reaches the sliding area G5, the stocker 31 reaches the height at which the tray 46 becomes the transportable position P.
(Figure 14 (B))

In the above structure, the user carries out a required operation to convey the desired tray (42-46) to the control circuit 120 (FIG. 11) to the loading / unloading position of the disk DISK or the reproducing position. When the command is input, the control circuit 120 accordingly drives the drive signal S10 to move the selected tray to the transportable position P.
To the drive circuit 121.

The drive circuit 121 accordingly responds to the motor M1.
Is rotated in a predetermined direction to rotate the cam 61. At this time, the control circuit 120 detects the rotational position of the cam 61 via the rotary encoder 65, and the sliding of the cam 61 corresponding to the state in which the selected tray (42 to 46) becomes the transportable position P is detected. Regions G1, G2, G3, G4
Alternatively, when the guide protrusion 31E reaches G5, the cam 6
The rotation operation of 1 is stopped.

Here, the sliding area G of the cam 61 corresponding to the state in which the trays 42 to 46 are in the transportable position P respectively.
1, G2, G3, G4 and G5 are each formed with a predetermined range, and if the guide protrusion 31E is within the range, the tray corresponding to the sliding area G1, G2, G3, G4 or G5 is transported. The possible position P is maintained. Therefore, the drive error of the means for rotating the cam 61 can be absorbed by the formation range of the sliding regions G1, G2, G3, G4, and G5.

According to the above structure, the cam 6 which rotates is operated.
By moving the stocker 31 in the direction indicated by the arrow a or in the opposite direction by means of 1, the structure is further simplified as compared with the case of using a conventional slide type cam (FIG. 15). Along with getting, slide type cam 5,
Compared with the case of using 6 (FIG. 15), the slide region is not required, and thus the configuration region can be further downsized.

(3) Other Embodiments In the above embodiment, the case where the five trays 42 to 46 are stored in the stocker 31 has been described, but the number of trays is not limited to this, and various tray numbers may be used. Applicable.
In this case, the cam groove 61A of the cam 61 may have a shape corresponding to the number of trays.

In the above embodiment, the rotary encoder 65 is used as means for detecting the rotational position of the cam 61.
However, the present invention is not limited to this, and various detection methods and detection means such as direct detection of the movement of the stocker 31 using a micro switch can be used.

In the above embodiment, the stocker 3
Although the case where the sliding shafts 33A and 33B are used as the means for supporting 1 has been described, the present invention is not limited to this, and various other supporting means can be used.

In the above embodiment, the case where the present invention is applied to the disk reproducing device 30 has been described.
The present invention is not limited to this, and can be widely applied to a stocker moving means for accommodating various other recording media.

[0063]

As described above, according to the present invention, since the stocker is moved by using the rotating cam, it is possible to realize the stocker moving device which has a much simpler structure and can be downsized. As a result, the disk reproducing device equipped with the stocker moving device can be further downsized.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a disk reproducing device equipped with a stocker moving device according to the present invention.

FIG. 2 is a side view showing a storage state of a tray.

FIG. 3 is a perspective view showing a configuration of a stocker.

FIG. 4 is a schematic plan view showing a drive unit of the stocker.

FIG. 5 is a cross-sectional view showing a driving means of a stocker by a cam.

FIG. 6 is a schematic linear plan view showing a transport state of a tray.

FIG. 7 is a schematic side view showing driving means when a tray is conveyed.

FIG. 8 is a schematic plan view showing a configuration of a reproducing unit.

FIG. 9 is a schematic side view showing a driving state of a reproducing unit by a slide cam.

FIG. 10 is a schematic side view showing a configuration of a slide cam.

FIG. 11 is a block diagram showing a control system of the embodiment.

FIG. 12 is a plan view showing the structure of a cam.

FIG. 13 is a schematic diagram showing the movement of the stocker by the cam.

FIG. 14 is a schematic diagram showing the movement of the stocker by the cam.

FIG. 15 is a schematic perspective view showing a conventional example.

[Explanation of symbols]

1, 30 ... Disk playback device, 31 ... Stocker, 4
0 ... Chassis, 42, 43, 44, 45, 46 ... Tray, 42A, 43A, 44A, 45A, 46A, 64
... Slide bearings, 42B, 43B, 44B, 45B, 46
B ... Engaging portion, 47A, 47B, 47C, 47D, 47
E, 63 ... Sliding shaft, 61 ... Cam, 65 ... Rotary encoder, 66A, 66B, 66C, 67 ... Position detecting element, 90 ... Optical pick-up, 91 ... Base.

Claims (1)

[Claims] 1. A stocker for accommodating a recording medium, the stocker moving in a predetermined direction by a predetermined support member, and a slide groove for guiding a guide projection fixed to the stocker. A cam for moving the stocker in the predetermined direction by moving the guide protrusion in the predetermined direction; a driving means for driving the cam; and a position detecting means for detecting a rotational position of the cam. Characteristic stocker moving device.