JPH0719845U - Loading device - Google Patents

Abstract

(57) [Abstract] [Purpose] To simplify the configuration of the loading device and reduce the cost. [Structure] When the disk 10 is loaded, first, the push arm 14 is rotated by the rotation of the motor 28, and the disk 1 is rotated.
0 is pushed toward the carriage 26, and the grip 74
Is gripped by. The grip portion 74 can also grip and release the disk 10 by the motor 28. When the grip 74 is transported by the transport arm 70 and the disk 10 reaches a position near the position where the disc 10 can be mounted on the reproducing apparatus 13, the grip 74 is moved.
Releases the disk 10. After that, the reproducing device 13 is raised by the motor 28, and the disc 10 is held between the turntable 17 and the disc clamper. Thus, a series of loading operations can be performed only by driving the motor 28.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a loading device suitable for application to recording / reproducing devices such as compact discs, laser discs, and mini discs.

[0002]

[Prior art]

 Conventionally, a loading device as shown in FIG. 12 is known in order to convey a disc-shaped recording medium (hereinafter referred to as a disc) from a magazine to a reproduction position. In this loading device, a plurality of disks 10 are temporarily stored in each slot 12 of a magazine 11. Then, the disc 10 from which information is to be reproduced is selected, and the carriage 26 on which the reproducing device 13 is mounted is moved up and down to the height at which the disc 10 is stored.

Next, as shown in FIG. 13, when the push arm 14 rotates to slightly push the disc 10 toward the reproducing device 13, the disc 10 is supplied to the reproducing device 13. It is sandwiched between a pair of upper and lower rollers 15, 16.

Then, as shown in FIG. 14, the disc 10 is pulled in by the rollers 15 and 16, and the reproducing position of the reproducing device 13, that is, the center hole 10 a of the disc 10 and the turntable 17 of the reproducing device 13 are aligned with each other. It is transported to the position where it will be stopped. Further, as shown in FIG. 15, after the upper roller 15 is lifted to be sufficiently separated from the disc 10, the playback device 13 is raised and the disc 10 is mounted on the turntable 17 to enable the playback. Become.

That is, when the reproducing apparatus 13 moves up, the turntable 17 which is the rotation driving unit of the reproducing apparatus 13 lifts the disc 10 and approaches the disc clamper (not shown) located above the disc 10 so that the disc 10 and the disc 10 both move. To pinch. This allows the disc 10 to rotate. At this time, the disc 10 is clamped at a height such that it does not come into contact with the lower roller 16 and the already raised upper roller 15. Therefore, these rollers 15 and 16 do not come into contact with the rotating disk 10 and damage it. Further, in order to unload the disc 10 and convey it from the reproducing device 13 to the magazine 11, the procedure opposite to the above may be performed.

[0006]

[Problems to be solved by the device]

 By the way, in the loading device as described above, the operation of transporting the disc 10 to the reproducing position and the vertical movement of the reproducing device 13 are performed by different driving means, for example, two motors.

In order to coordinate the timing of the vertical movement of the reproducing apparatus 13 and the timing of the transportation of the disk 10, various sensors and the like are used to control the start and stop timing of each drive means. Therefore, the conventional loading device has a problem that the structure is complicated and the cost is high.

Therefore, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a loading device having a simple structure and capable of reducing the cost.

[0009]

[Means for Solving the Problems]

 In order to solve the above problems, in the present invention, a rotation driving means for rotating a disk-shaped recording medium at a recording / reproducing position, and a conveying means for conveying a recording medium from a standby position to a recording / reproducing position. And a vertically moving means for vertically moving the rotation driving means for clamping the recording medium, a driving means for driving the conveying means and the up / down moving means, and a driving means for driving the conveying means. And a conveying means, and a second connecting means for connecting the driving means and the up-and-down moving means when driving the up-and-down moving means. It is characterized by being driven at a predetermined timing.

[0010]

As shown in FIG. 1, the disk 10 is inserted into the slot 12 of the magazine 11. The reproducing device 13 for the disc 10 is arranged in the carriage 26. A series of operations for loading the disc 10 is performed by a motor 28 provided on the carriage 26.

First, as shown in FIG. 7, the push arm 14 is rotated by the rotational driving of the motor 28, and the disk 10 is pushed out from the magazine 11 toward the carriage 26 at the tip thereof.

The ejected disk 10 is held by the holding portion 74. The grip 74 is suspended from the ceiling plate 26a of the carriage 26, and the grip 74 is slidable along a guide groove 82 formed in the ceiling plate 26a. The grip portion 74 is engaged with the transfer arm 70 that transfers the grip portion 74, and the transfer arm 70 is rotated by the rotation of the motor 28. By the rotation of the transfer arm 70, the grip portion 74 is not only transferred, but also grips and releases the disc 10 when it is in the position shown in FIGS. 7 and 10.

When the grip 74 and the disc 10 are carried by the carrying arm 70 and the disc 10 comes close to a position where it can be placed on the turntable 17 of the reproducing apparatus 13, as shown in FIG. 74 releases the disk 10.

Then, the disc 10 is moved to just above the turntable 17 by the push arm 76 which is also rotated by the motor 28, as shown in FIG. After this, the cam follower 50 is driven by the cam 48 that rotates with the rotation of the motor 28, the reproducing device 13 rises, and the disc 10 is sandwiched between the turntable 17 and the disc clamper 35 above it.

To unload the disk 10, the motor 28 may be rotated in the reverse direction. With this, first, the reproducing device 13 descends, the grip portion 74 grips the disc 10, and the transport arm 70 rotates to transport the disc 10 to the position shown in FIG. 7. Here, the grip portion 74 releases the disc 10, the push arm 14 retracts, and the disc 10 is returned to the magazine 11 by the restoring force of the leaf spring 24 in the magazine 11.

[0016]

【Example】

 Hereinafter, an embodiment of a loading device according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the configuration of a loading device according to the present invention. This loading device is an example applied to a compact disc reproducing device 13. As shown in FIG. 2, the entire loading device is surrounded by a cabinet 19, in which a magazine 11 is arranged in the rear, a carriage 26 in which a reproducing device 13 is mounted is arranged in the front, and a carriage is arranged. 26 is moved up and down to the height at which the desired disk 10 is stored. Then, the disc 10 to be reproduced is loaded from the rear magazine 11 to the reproducing device 13 arranged in the front carriage 26, and the reproduced disc 10 is unloaded from the reproducing device 13 to the magazine 11. It has become so.

As shown in FIG. 1, the magazine 11 has left and right side walls 20 and 21, and the side walls 20 and 21 are provided with shelves 22a and 22b (see FIG. 2) facing each other in multiple stages. The left and right shelves 22a and 22b form the slot 12 of the magazine 11. The disk 10 is inserted into the slot 12 and placed on the shelves 22a and 22b.

The shelves 22a, 22b are arranged apart from each other, and recesses 23a, 23b are formed in the shelves 22a, 22b so as to contact and support only the peripheral portion of the disk 10. Further, since the disc 10 is transported to the reproducing device 13, the gap between the recesses 23a and 23b is widened toward the reproducing device 13 side.

A leaf spring 24 is fixed to each slot slightly forward of the center inside the side wall 20. The leaf spring 24 constantly biases the disk 10 rearward so that the disk 10 does not rattle in the slot 12. Further, as will be described later, when the disc 10 is unloaded from the reproducing apparatus 13, the disc 10 inserted into the slot 12 to some extent is pushed inward by the leaf spring 24 so that the disc 10 is completely inserted into the slot 12. Will be returned.

The reproducing device 13 is arranged inside a box-shaped carriage 26 arranged in front of the magazine 11. As shown in FIG. 2, the carriage 26 is attached to the magazine 11. It can be raised and lowered by an elevator device (not shown). When the disc 10 is to be reproduced, the carriage 26 moves up and down so as to face the slot 12 in which the target disc 10 is accommodated.

As shown in FIG. 1, the reproducing apparatus 13 has a flat plate-shaped base 13a and a reading unit 13b provided thereon. A disk 10 is placed on a concentric circle on the base 13a, and a turntable 17 which is a rotation driving means for rotating the disk 10 is rotatably provided upright. The reading unit 13b is also provided with a pickup 13c. The pickup 13c is movable along the radial direction of the disc 10, so that all the tracks of the disc 10 can be read.

As shown in FIG. 3, a mounting plate 25 is fixed to the right side of the base 13 a of the reproducing device 13, and a mounting plate 27 is also fixed to the bottom plate 26 b of the carriage 26. Then, one ends of the two links 29a and 31a are rotatably attached to the mounting plate 25 by pins 29b and 31b. The other ends of the links 29a and 31a are attached to the attachment plate 27 by pins 29c and 31c.

Here, the distance between the pins 29b and 31b and the distance between the pins 29c and 31c are the same, and the lengths of the links 29a and 31a are the same. Therefore, the links 29a and 31a and the mounting plates 25 and 27 form a parallel crank mechanism 33. This allows the base 13a to move up and down while remaining parallel to the carriage 26. When the base 13a rises, the turntable 17 and the disc clamper 35 provided on the ceiling plate 26a are erected there. Thus, the disc 10 can be clamped. In FIG. 3, the reproducing device 13 is viewed from the right side in FIG. 1, and only the parallel crank mechanism 33 provided on the right side portion of the base 13a is shown, but the left side portion of the base 13a is prevented so that the reproducing device 13 does not tilt. Also has a similar parallel crank mechanism.

As shown in FIG. 1, the bottom plate 26b of the carriage 26 is fixed with a motor 28 as a driving means, and the rotary shaft 28a of the motor 28 is fixed with a worm 30. . A shaft 32 is erected on the bottom plate 26b, and a cam 34 is fixed to the shaft 32. The cam 34 has a columnar shape, and a substantially fan-shaped loop-shaped cam groove 36 is formed on the upper surface thereof.

Further, an intermittent tooth portion 38 of about 1/4 of the circumference is formed on a part of the peripheral edge of the cam 34, and the diameter thereof is substantially the same as the pitch circle of the intermittent tooth portion 38 adjacent to the counterclockwise direction. The first circular arc portion 40 is formed, and the second circular arc portion 42 having a slightly smaller diameter is formed between the intermittent tooth portion 38 and the first circular arc portion 40.

A worm wheel (not shown) is attached to the lower portion of the cam 34, and the rotation of the motor 28 is transmitted to the cam 34 by engaging the worm wheel with the worm 30.

A gear (not shown) is attached to the lower portion of the worm wheel. On the bottom plate 26b of the carriage 26, there are attached a gear 44 which is engaged with the gear and is driven to rotate, and a gear 46 which is engaged with the gear 44 and is driven to rotate. A cylindrical cam 48 for moving the reproducing device 13 up and down is provided above the gear 46, and a cam groove 49 as shown in FIG. 4 is formed around the cam 48. ing. The cam groove 49 is formed by upper and lower horizontal portions 49a and 49b which are separated from each other at an appropriate interval, and an inclined portion 49c which connects them. The tip of the lower horizontal portion 49b goes beyond the tip of the upper horizontal portion 49a and reaches below the inclined portion 49c.

As shown in FIG. 3, a cam follower 50 is attached to the side surface of the base 13 a of the playback device 13 facing the cam 48. The cam follower 50 is fitted in the cam groove 49, and the base 13a is linked to the carriage 26 by the link as described above. Therefore, the cam 48 rotates and the cam follower 50 moves to the inclined portion 49c. In this case, the reproducing device 13 as a whole moves up and down horizontally. Then, when the cam follower 50 is applied to the upper horizontal portion 49a, the disc 10 is clamped by the turntable 17 and the disc clamper 35 as shown by a virtual line.

That is, the inclined portion 49 c of the groove 49 of the cam 48, the cam follower 50, and the parallel crank mechanism 33 constitute a vertical movement unit of the reproducing device 13. Further, the cam groove 49 of the cam 48 serves as a second connecting means for connecting the vertical moving means and the motor 28.

When the unillustrated worm wheel under the cam 34 is rotated clockwise by the drive of the motor 28 shown in FIG. 1, the gear under the worm wheel and the gear 44 meshing with the gear 44 under the worm wheel rotate. , The gear 46 and the cam 48 rotate clockwise. As a result, the playback device 13 moves up. When the motor 28 rotates in the reverse direction and the cam 48 rotates counterclockwise, the reproducing device 13 descends.

A shaft 52 is projectingly provided near the cam 34, and one end of a lever 53 is rotatably attached to the shaft 52. Further, a cam follower 58 is erected on the lower surface of the central portion of the lever 53, and the cam follower 58 is fitted into the cam groove 36 of the cam 34. A pin 54 is provided at the end of the lever 53 opposite to the shaft 52.

An extension portion 60 is provided at the right end of the carriage 26 on the magazine 11 side so as to extend rearward. The extension 60 passes laterally of the magazine 11, and its end 60a is located on the rear side of the magazine 11. A long slider 56 is arranged in the extension portion 60, and the slider 56 is movable only along the extension portion 60 in the front and rear directions. There is a groove at the front end of the slider 56, and the pin 54 of the lever 53 is fitted in this groove, and the slider 56 moves back and forth as the lever 53 rotates. A convex portion 64 is formed at the rear end of the slider 56.

The push arm 14 is attached to the end portion 60 a of the extension portion 60 so as to be rotatable around the shaft 14 a. A pin 62 is attached to the right end of the push arm 14, and when the slider 56 moves rearward, the convex portion 64 pushes the pin 62 to rotate the push arm 14 counterclockwise. The left end of the push arm 14 projects rearward of the disc 10 from the end 60a, and the disc 10 is pressed here by the rotation of the push arm 14.

When the motor 28 is rotated now, a worm wheel (not shown) under the cam 34 is rotated clockwise, and the cam 34 integrally attached to the worm wheel is also rotated clockwise. At this time, when the cam follower 58 follows the cam groove 36 and reaches the large-diameter portion of the cam groove 36, the cam follower 58 moves away from the shaft 32 by a constant distance, so that the lever 53 rotates counterclockwise about the shaft 52. Rotate around.

Along with this, the slider 56 engaged with the pin 54 of the lever 53 moves rearward, and the pin 62 is pushed by the convex portion 64 of the slider 56. As a result, the push arm 14 rotates counterclockwise about the shaft 14a, and the tip of the push arm 14 contacts the disk 10. When the motor 28 further rotates, the push arm 14 further rotates, and the disk 10 is pushed out from the slot 12 of the magazine 11 toward the carriage 26 to some extent.

On the right side of the carriage 26, an intermittent gear 66 capable of meshing with the intermittent tooth portion 38 of the cam 34 is rotatably provided. When the cam 34 rotates clockwise and the intermittent tooth portion 38 of the cam 34 meshes with the tooth portion 68 of the intermittent gear 66, the intermittent gear 66 starts rotating counterclockwise about the shaft 66a.

A long transfer arm 70 is fixed to the upper side of the intermittent gear 66, and the transfer arm 70 rotates around the shaft 66 a together with the intermittent gear 66. A groove 72 is formed along the longitudinal direction on the tip side of the transfer arm 70, and a grip portion 74 for gripping the disk 10 is connected to the groove 72. The gripping portion 74 and the transport arm 70 constitute a transport means for transporting the disc 10.

A guide groove 82 is formed in the ceiling plate 26 a of the carriage 26 in order to move the grip portion 74 on a predetermined locus. The guide groove 82 is formed from the rear center of the ceiling plate 26a to the front right corner. In this embodiment, when the gripper 74 moves, the guide grooves 82 are irregularly curved so as to avoid other members (not shown) in the carriage 26. However, the guide grooves 82 are linearly or arcuately formed. Good.

As shown in FIG. 8, the base end 76 a of the push arm 76 is rotatably attached to the shaft 66 a above the transfer arm 70, and the pin 78 is fixed to the front end of the push arm 76. Has been done. The pin 78 is inserted into an arcuate guide groove 80 provided on the ceiling plate 26a of the carriage 26. Therefore, the push arm 76 can rotate about the shaft 66a by the length of the guide groove 80. The push arm 76 and the right end of the carriage 26 are connected by a spring 77 so that the push arm 76 is always biased clockwise.

A pin 70 a is provided on the intermittent gear 66 so as to rotate the push arm 76. A torsion spring 79 wound around the shaft 66a is arranged between the transfer arm 70 and the push arm 76. The push arm 76 is provided with protruding portions 81a and 81b, and the turnable range of both end portions of the torsion spring 79 is restricted by the protruding portions 81a and 81b.

When the intermittent gear 66 rotates counterclockwise, the pin 70 a contacts the torsion spring 79, and when the intermittent gear 66 further rotates, the left end of the torsion spring 79 separates from the convex portion 81 b and the other end. The push arm 76 is also rotated counterclockwise due to the twisting by the pin 70a, and the state shown in FIG. 10 is obtained.

That is, the pin 70 a is for transmitting the counterclockwise torque of the intermittent gear 66 to the push arm 76, and the torsion spring 79 is for adjusting the rotation angle of the intermittent gear 66. Therefore, when the intermittent gear 66 rotates counterclockwise, the push arm 76 also appropriately rotates counterclockwise and pushes the disk 10 to a position where it can be placed.

After that, when the intermittent gear 66 rotates clockwise, the pin 70a separates from the torsion spring 79, the push arm 76 is pulled by the spring 77, and rotates clockwise, and the position shown in FIG. It is supposed to return to. Therefore, the push arm 76 does not get in the way when the disc 10 is stored in the magazine 11.

FIG. 5 shows the configuration of the grip portion 74. The grip portion 74 has a suspension portion 84 and a rotation lever 86 pivotally supported by the suspension portion 98, and the rotation lever 86 rotates to grip and release the disc 10. is there. As shown in FIG. 6, the suspension portion 84 is composed of an upper plate 84a and left and right side plates 84b and 84c bent below the upper plate 84a.

The upper plate 84a has a rectangular shape, and two through holes 88 are formed therein. As shown in FIG. 5, a stepped round bar 90 is inserted into the through hole 88, and a collar 92 is fitted on the upper part of the stepped round bar 90. The stepped round bar 90 and the collar 92 penetrate the guide groove 82 of the ceiling plate 26a and project above the ceiling plate 26a. When the washer 94 is fitted into the groove at the top of each stepped round bar 90, the suspension portion 84 is suspended so as not to fall on the ceiling plate 26a and slides along the guide groove 82. It is possible.

The lower portions of the left and right side plates 84b, 84c of the suspension portion 84 extend rearward of the upper plate 84a. A roller 96 for smoothly receiving the disk 10 is rotatably provided between the tip ends of the left and right side plates 84b and 84c.

As shown in FIG. 6, the rotating lever 86 is composed of left and right side plates 86b and 86c and an upper plate 86a provided on the rear end side thereof. The side plates 86b and 86c are arranged so as to sandwich the side plates 84b and 84c of the suspension portion 84 from the outside, and the shaft 98 is inserted through the side plates 86b and 86c and the side plates 84b and 84c. As a result, the rotating lever 86 rotates about the shaft 98.

As shown in FIG. 5, a disc-shaped pad 100 is attached to the lower side of the upper plate 86a. The pad 100 faces the roller 96 of the suspension portion 84, and the rotation of the rotation lever 86 enables the pad 100 and the roller 96 to sandwich the disc 10.

A coiled torsion spring 102 is wound around the shaft 98, one end 102 a of which is hung on the upper plate 86 a of the rotating lever 86 and the other end 102 b of which is above the suspension portion 84. It is attached below the plate 84a. As a result, the rotating lever 86 is always urged clockwise, that is, in the closing direction.

A slider 104 is arranged below the upper plate 84a of the suspension portion 84. As shown in FIG. 6, the slider 104 has a substantially rectangular upper plate 104a and a side plate 104b provided on the left side thereof. As shown in FIG. 5, the upper plate 104a has two elongated holes 106 formed in the front and rear thereof. The lower part of the stepped round bar 90 is inserted into the elongated hole 106, and the stepped round bar is further inserted. A washer 108 is fitted in the groove at the bottom of 90. This allows the slider 104 to move in the front-rear direction.

A roller 122 is erected on a side plate 86b on the left side of the rotating lever 86. In addition, a sloped surface 124 that contacts the roller 122 is formed at the rear end of the side plate 104b of the slider 104.

Further, as shown in FIG. 6, a convex portion 110 is provided on the right side of the upper plate 104 a, and a through hole 112 is formed in this convex portion 110. The slider 104 is disposed on the carrying arm 70, and the pin 114 inserted into the groove 72 of the carrying arm 70 is inserted into the through hole 112 of the slider 104. As a result, when the transport arm 70 rotates, the grip portion 74 is moved back and forth by being guided by the guide groove 82 (FIG. 1).

When the grip portion 74 is moved backward to the position shown in FIG. 1, the grip portion 74 is first positioned at the rearmost end of the guide groove 82, and the grip portion 74 stops. Further, when the transfer arm 70 rotates counterclockwise, only the slider 104 moves further backward. At this time, since the pin 114 (FIG. 6) rotates in the groove 72 and slides along the longitudinal direction of the groove 72, the forward and backward movement of the slider 104 is not hindered.

When the slider 104 moves backward, the side plate 104b comes into contact with the roller 122, and further pushes down the roller 122 against the biasing force of the torsion spring 102. When the rotary lever 86 rotates counterclockwise around the shaft 86 until the stepped round bar 90 is located at the rear end of the elongated hole 106, the rotary lever 86 opens and the disk 10 can be received. .

Here, a coiled torsion spring 116 is wound around the stepped round bar 90 in the front, and one end 116 a of the coiled torsion spring 116 is attached to the upper plate of the suspension portion 84 as shown in FIG. The other end 116b is locked to the projection 118 provided on the upper plate 104a of the slider 104. As a result, the slider 104 is always biased forward. Therefore, in order to move the slider 104 backward as described above, a force that opposes the biasing force of the torsion spring 116 is required.

Next, the operation of the loading device according to this embodiment will be described. FIG. 1 shows a waiting state of the grip portion 74 1. At this time, the grip portion 74 is transported by the transport arm 70 to the rear limit of the proposed groove 82. Furthermore, the slider 114 of the grip portion 74 is also moved backward with respect to the other members of the grip portion 74 by the transfer arm 70, and the pivot lever 86 of the grip portion 74 is opened to receive the disk 10 as described above. ing.

At this time, the cam follower 50 of the reproducing device 13 is located at the end of the horizontal portion 49b below the cam groove 49 as shown in FIG. 4, that is, at the position (a) in the figure, and therefore, the reproducing device. All 13 are in the lowered position.

Further, as shown in FIG. 1, the tooth portion 68 of the intermittent gear 66 and the intermittent tooth portion 38 of the cam 34 are not in mesh with each other. Large teeth 68a, which are larger than the other teeth of the tooth portion 68, are formed at both ends of the tooth portion 68 of the intermittent gear 66, respectively. The side surface on the clockwise side is in contact with the second arc portion 42 of the cam 34. As a result, the intermittent gear 66 is prevented from rotating counterclockwise. Since the transfer arm 70 is provided so as to rotate integrally with the intermittent gear 66, the transfer arm 70 is similarly prevented from rotating. It should be noted that recessed grooves for releasing the large teeth 68a are formed at both ends of the intermittent tooth portion 38, respectively.

Therefore, in the state of FIG. 1, the motor 28 is activated, the cam 34 rotates, and the tooth portion 68 of the intermittent gear 66 meshes with the intermittent tooth portion 38 of the cam 34 again so that the intermittent gear 66 moves counterclockwise. The slider 104 arranged on the grip portion 74 does not move forward unless the transfer arm 70 is rotated by rotating the slider 104. Therefore, the rotating lever 86 is left open.

A series of operations for loading the disk 10 from this state is performed by driving the motor 28. That is, when the motor 28 is driven, the worm 30 rotates and the worm wheel below the cam 34 rotates clockwise. Therefore, the cam 34 integrally attached to the worm wheel also rotates clockwise. At this time, the cam follower 58 is moved away from the shaft 32 following the cam groove 36, so that the lever 53 rotates counterclockwise about the shaft 52.

Accordingly, when the slider 56 engaged with the pin 54 of the lever 53 moves rearward, the pin 62 is pushed by the protrusion 64 of the slider 56, so that the push arm 14 is centered around the shaft 14a. Rotates counterclockwise and its tip comes into contact with the disk 10. Then, the push arm 14 further rotates, and the disc 10 is pushed out from the slot 12 of the magazine 11 toward the carriage 26 by a predetermined distance. As a result, the disk 10 becomes ready for being gripped by the gripping portion 74 (FIG. 7).

Further, as the motor 28 rotates, the cam 34 rotates clockwise, and when the intermittent tooth portion 38 of the cam 34 meshes with the tooth portion 68 of the intermittent gear 66, the intermittent gear 66 and the conveying arm 70. Starts rotating counterclockwise around the shaft 66a. That is, the intermittent tooth portion 38 and the intermittent gear 66 constitute a first coupling means for intermittently coupling the transport arm 70 and the motor 28.

As shown in FIG. 8, within a short time after the rotation of the transfer arm 70 starts, the slider 104 of the gripper 74 moves forward by the transfer arm 70 as described above, and the roller 122 is pressed. Since it is released, the rotation lever 86 rotates and the pad 100 closes to grip the disk 10. Then, by further rotating the transfer arm 70 counterclockwise, the grip portion 74 and the disk 10 are transferred along the guide groove 82. At this time, the disk 10 moves along a guide surface (not shown) provided in the carriage 26.

By the way, as shown in FIG. 8, the right side of the ceiling plate 26a of the carriage 26 is longer than the left side in the front direction, and the guide groove 82 is formed up to this elongated portion. Here, a thin projecting portion 125 that is parallel to the guide groove 82 and projects downward is provided. As shown in FIG. 9, a sloped surface 126 is formed at the tip of the lower surface of the overhanging portion 125. The sloped surface 126 functions similarly to the sloped surface 124 (FIG. 5) formed on the slider 104 of the grip portion 74.

As shown in FIG. 10, when the transport arm 70 rotates and the grip portion 74 is transported to the position just before the disc 10 is mounted on the turntable 17 of the reproducing apparatus 13, when the grip portion 74 is transported, the rollers of the grip portion 74 are moved. 122 passes through the slope 126 and enters under the overhang 125. At this time, since the roller 125 is pushed down, the grip portion 74 moves forward while the rotating lever 86 opens, and the disc 10 is released.

After that, the pin 70 a provided on the transfer arm 70 contacts the torsion spring 79. When the transport arm 70 further rotates counterclockwise, the push arm 76 starts rotating counterclockwise as described above. Along with this, a roller provided at the tip of the push arm 76 comes into contact with the disk 10 and starts to push it.

Then, as shown in FIG. 11, when the motor 28 further rotates, the transport arm 70 rotates counterclockwise, and the grip portion 74 moves away from the disc 10, the push arm 76 is pressed by the rotating push arm 76. Then, the disc 10 reaches a position where it can be placed on the turntable 17 of the reproducing apparatus 13. At this time, the intermittent tooth portion 38 of the cam 34 and the tooth portion 68 of the intermittent gear 66 are disengaged from each other, and the clockwise side surface of the large tooth 68a on the clockwise side of the intermittent tooth portion 68 becomes the first arc portion 40. Abut. Thereafter, even if the motor 28 further rotates and the cam 34 rotates clockwise, the transfer arm 70 is maintained in the position shown in FIG. Further, even after the motor 28 is stopped, the clockwise side surface of the clockwise large tooth 68a is in contact with the first arc portion 40 so that the intermittent gear 66 does not rotate clockwise. Since it is restricted, the transfer arm 70 is maintained at the position shown so that the grip 74 does not hit the disk 10.

Now, as described above, the motor 28 is driven to convey the disk 10 from the magazine 11 to a position where it can be placed on the turntable 17, and the wheel and gear under the cam 34, and the gear 44. The gear 46 is rotating clockwise through.

The cam 48, which is provided integrally with the gear 46, also rotates clockwise, and when the disc 10 reaches a position where it can be placed on the turntable 17, the cam follower 50 is cammed as shown in FIG. The horizontal portion 49c below the groove 49 (FIG. 4) comes to the position shown in (a). After this, the rotation of the motor 28 is continued, the cam 48 continues to rotate, and the cam follower 50 rises along the inclined portion 49c and reaches the position shown in (c) of the upper horizontal portion 49a.

As the cam follower 50 is raised, the entire reproducing device 13 is raised by the parallel crank mechanism 33 while being horizontal as described above, the turntable 17 of the reproducing device 13 receives the disc 10, and the turntable 17 is further raised. Then, the disk 10 is clamped by the disk clamper 35 and the turntable 17 above it (phantom line in FIG. 3). This completes the loading of the disk 10 and the motor 28 stops.

When the disk 10 is unloaded, the motor 28 reverses from the state shown in FIG. 11 and the reproducing device 13 descends. After that, while the transfer arm 70 is rotating clockwise, the grip portion 74 grips the disk 10 and moves along the guide groove 82. Further, when the transport arm 70 rotates clockwise and the pin 70a separates from the torsion spring 70b, the counterclockwise force on the push arm 76 disappears, and the push arm 76 is pulled by the spring 77 to rotate clockwise. It turns to and returns to the position shown in FIG.

When the grip portion 74 reaches the position shown in FIG. 11, only the slider 114 is moved backward by the transfer arm 70, the pivot lever 86 is opened, and the disc 10 is released from the grip portion 74 (FIG. 7).

After that, the push arm 14 rotates clockwise, and the released disk 10 is pushed into the inside of the predetermined slot 12 of the magazine 11 by the restoring force of the leaf spring 24, as shown in FIG. Return to the initial standby state. This completes the unloading of the disk 10.

The case where the loading device according to the present invention is applied to a reproducing device for a compact disc has been described above. However, the present invention is not limited to this, and a reproducing device and a recording device for another disc-shaped recording medium, etc. Can be applied to.

[0076]

[Effect of device]

 As described above, the loading device of the present invention comprises the rotation driving means for rotating the disk-shaped recording medium at the recording / reproducing position and the conveying means for conveying the recording medium from the standby position to the recording / reproducing position. And a driving device for driving the conveying device and the vertical moving device, and a driving device when driving the conveying device in a loading device having a vertically moving device for vertically moving the rotation driving device for clamping the recording medium. It comprises first connecting means for connecting the conveying means and second connecting means for connecting the driving means and the up / down moving means when driving the up / down moving means. It is designed to be driven at a predetermined timing.

Therefore, according to the present invention, since it is possible to drive the recording / reproducing apparatus up and down and the timing of the conveyance of the recording medium with only one driving means, a plurality of conventional driving means are used. Compared to the above case, sensors and the like are not required, so that the configuration is easy and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing a configuration of a loading device according to the present invention.

FIG. 2 is a side sectional view of a loading device.

FIG. 3 is a side view showing a mounting structure of a reproducing device in the loading device.

FIG. 4 is a development view of a peripheral surface of a cam 48 for moving the reproducing device 13 up and down.

FIG. 5 is a side sectional view showing a configuration of a grip portion 74 that grips the disc 10.

FIG. 6 is a plan view of a grip portion 74.

FIG. 7 shows a procedure for loading the disc 10 (1 /
It is a figure explaining 4).

FIG. 8 shows a procedure for loading the disk 10 (2 /
It is a figure explaining 4).

FIG. 9 is a side view showing the shape of an overhanging portion 125 for operating the grip portion 74.

FIG. 10 shows a procedure of loading the disc 10 (3 /
It is a figure explaining 4).

FIG. 11 shows a procedure of loading the disc 10 (4 /
It is a figure explaining 4).

FIG. 12 is a diagram illustrating a loading procedure (1/4) by a conventional loading device.

FIG. 13 is a diagram illustrating a conventional loading procedure (2/4).

FIG. 14 is a diagram illustrating a conventional loading procedure (3/4).

FIG. 15 is a diagram illustrating a conventional loading procedure (4/4).

[Explanation of symbols]

 10 Disc 11 Magazine 13 Playback Device 17 Turntable 26 Carriage 48 Cam 50 Cam Follower 70 Transport Arm 74 Gripping Part 82 Guide Groove

Claims (1)

[Scope of utility model registration request] 1. A rotation driving means for rotating a disk-shaped recording medium at a recording / reproducing position, a conveying means for conveying the recording medium from a standby position to the recording / reproducing position, and a clamp for the recording medium. In order to achieve this, in a loading device having vertical moving means for moving the rotary driving means up and down, drive means for driving the carrying means and the vertical moving means, and the driving means and the driving means for driving the carrying means. It comprises a first connecting means for connecting the conveying means, and a second connecting means for connecting the driving means and the up-and-down moving means when driving the up-and-down moving means. A loading device characterized in that the vertical movement means is driven at a predetermined timing.