JPH06243570A - Disk reproducing device - Google Patents

Abstract

PURPOSE:To miniaturize a device and to present a fine appearance when a pallet is pulled out by making a shield body appear at a position covering a recessed part in accordance with the movement of a pallet to the outside of a device. CONSTITUTION:The pallet 14 placing a disk 4 is freely and movably provided between the position of a disk reproducing means in the inside of a device and a position in the outside of a device. A disk stocker 3 housing plural disks 4 singly by arranging them in the virtical directions is arranged closely to a disk 4 whose information is reproduced in a reproducing device means so as to be party superposed. And the disk 4 is transported by a disk transporting means 15 between the stocker 3 and a palett 14. Also, the pallet 14 has a chamfer part 52 passing the disk 4 holded by the stocker 3 when the stocker 3 and a reproducing means 6 are relatively and vertically moved. Thus, the chamfer part 52 is closed by the shield body 91 in accordance with the movement of the pallet 14 to the outside of the device, then the device is miniaturized and the fine appearance is not impaired when the palett 14 is pulled out to the outside of the device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reproduces a disc so that one disc can be selected from a disc stocker inside the device and supplied to the reproducing means, and a new disc can be supplied to the reproducing means from outside the device. Regarding the device.

[0002]

In Japanese Patent Laid-Open No. 3-83262, one disk can be selected from a disk stocker inside the apparatus and supplied to a reproducing means, and a new disk can be supplied to the reproducing means from outside the apparatus. Disc playback apparatus is disclosed.

According to this apparatus, in order to select one from a plurality of discs stored in the disc stocker,
The disc stocker is moved up and down to position a desired disc at a predetermined height and transfer it to the reproducing means. Further, the disc transferred from the disc stocker to the reproducing means is once received by the pallet and then rotationally driven, but the pallet can be pulled out to the outside of the apparatus, and the external disc can be accessed through the pallet. It can also be supplied to the reproducing means.

Further, Japanese Patent Application Laid-Open No. 63-204547 discloses a disc reproducing apparatus in which a plurality of discs are individually accommodated in a disc stocker. Further, the disc stocker and the disc reproducing means are brought close to each other to such an extent that the disc in the stocker and the disc being reproduced partially overlap with each other, thereby reducing the size of the entire apparatus.

[0005]

By the way, Japanese Patent Laid-Open No. 3-83
Japanese Patent Laid-Open No. 63-20
The following configuration can be considered by incorporating the technology of No. 4547. That is, the disc stocker in the apparatus is moved up and down to select a disc to be reproduced, and the disc transferred from the disc stocker to the reproducing means is received by the pallet and then rotationally driven. In a disc reproducing apparatus which can be pulled out to the outside so that a new disc can also be reproduced, the disc stocker shall accommodate the disc as a single unit, and both the stocker and the reproducing means should be used. The size of the device is reduced by bringing them close to each other.

However, in this case, the following problem may occur. Since the stocker and the disc are close enough to overlap the disc in the stocker and the disc being played, when the stocker moves up and down, in order to prevent the disc in the stocker from hitting the pallet and preventing its vertical movement. It is necessary to provide the pallet with a large notch for allowing the disc to pass vertically.

However, when the pallet is provided with a large notch, when the pallet is pulled out of the apparatus, the notch is exposed to the outside, which impairs the aesthetics and significantly lowers the commercial value. .

Therefore, an object of the present invention is to vertically move the disk stocker and the disk reproducing means to select a disk to be reproduced, and to provide a movable pallet between the reproducing means and the outside of the apparatus. In a disc reproducing apparatus in which a new disc can be supplied from the outside by pulling out this pallet to the outside, the disc stocker accommodates a single disc, and
The stocker and the reproducing means are brought close to each other to such an extent that the disks partially overlap with each other to miniaturize the apparatus, and also to prevent the appearance from being spoiled even when the pallet is pulled out of the apparatus.

[0009]

According to the present invention, a pallet for placing a disc, which is movable between a position of a disc reproducing means inside the device and a position outside the device, is provided to accommodate a plurality of discs as a single unit. A possible disc stocker and a disc reproducing means are arranged close to each other so that both discs partially overlap with each other, and a plurality of discs are held by the disc stocker by moving the disc stocker and the disc reproducing means up and down relatively by a disc selection mechanism. Select one of the discs,
The disk is transferred from the disk stocker onto the pallet by the disk transfer means, and the panel passes vertically through the disk held in the disk stocker when the disk stocker and the disk reproducing means move up and down relatively. And a notch for making
A shield is provided on the lower surface side of the pallet so that the shield appears at the position where the cutout is closed as the pallet moves to the outside of the apparatus.

[0010]

When supplying the disc in the disc stocker to the reproducing means, the disc selecting means moves the disc stocker and the disc reproducing means relatively up and down to select the disc, and the disc is placed on the pallet located in the disc reproducing means. Transfer to. When a disc is selected by the disc selecting means, the pallet is provided with a notch, so that the disc in the stocker does not come into contact with the pallet and the vertical movement of the disc stocker and the disc reproducing means is prevented. .

When a new disk is supplied to the disk reproducing means from the outside of the apparatus, the pallet is pulled out to the outside of the apparatus to mount a desired disk and the pallet is stored in the apparatus to reproduce the disk. The disk can be supplied to the means. Then, when the pallet is pulled out of the apparatus, a shield provided on the lower surface side of the pallet appears and closes the notch.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view of a disc reproducing apparatus viewed from the upper side, and FIG.
It is a perspective view which decomposes | disassembles and shows the main part shown in FIG.

As shown in FIG. 2, the sub chassis 2 is screwed to the lower surface side of the main chassis 1, and the disk stocker 3 is vertically movably mounted on the upper surface of the sub chassis 2. As shown in FIGS. 1 and 3, six compact disks 4 each having a diameter of 12 cm (without a tray) are placed in the disk stocker 3 as they are (without a tray) with a predetermined gap in the central axis direction and the central axis lines are aligned with each other. Be stored.

The disk stocker 3 mounted on the sub-chassis 2 is projected to the upper surface side of the main chassis 1 through a large hole 5 formed in a region approximately half in the back of the main chassis 1 as shown in FIG. ing. The hole 5 is a stocker.
It is set to a size large enough to allow the discs stored in 3 to pass vertically.

Further, a disk reproducing means 6 is attached to the lower surface side of the main chassis 1 in the approximately half area as shown in FIGS. 4 and 5, and the disk reproducing means 6 and the disk stocker 3 are provided. The positional relationship is adjacent to each other. As shown in FIGS. 4 and 5, the disk reproducing means 6 has a unit chassis 7 whose one end is rotatably attached to the lower surface side of the main chassis 1, an optical head 8 and a turntable 9.
It has a structure in which is attached.

Further, the unit chassis 7 includes an optical head 8
A head drive motor 10a that reciprocally drives the turntable 9 and a turntable drive motor 10b that rotationally drives the turntable 9 are attached. Then, as shown in FIG. 6, the optical head 8 and the turntable 9 are exposed to the upper surface side of the main chassis 1 through a large hole 11 formed in the front half of the main chassis 1. The turntable 9
A magnet is embedded in the upper surface of the.

On the upper surface side of the main chassis 1, a bracket 12 is screwed to the area of the disk reproducing means 6 as shown in FIG. 1, and a clamper 13 having a magnetic material such as an iron plate is partly attached to the bracket 12. Although attached to the turntable 9 from above, the clamper 13 is
A certain amount of movement is permitted in the horizontal and axial directions (Figs. 1, 4).

On the upper surface of the main chassis 1, there is arranged a pallet 14 on which large and small discs, that is, discs having a diameter of 12 cm and a disc having a diameter of 8 cm can be selectively placed (FIGS.
8). The moving direction of this pallet 14 is
It is set in a direction parallel to a straight line connecting the center of the disc 4 housed in the disc stocker 3 and the center of the turntable 9 and orthogonal to the rotation axis of the turntable 9.

On the upper surface of the pallet 14, as shown in FIGS. 2, 7 and 8, a disk is loaded with a disk stocker 3 and a disk reproducing means 6
A slider 15 is mounted as a disk transfer means for transferring between the disk and the disk. The slider 15 is movable in a direction parallel to the moving direction of the pallet 14. As shown in FIG. 2, the pallet 14 has a take-out pressing portion 16 and a pushing-back pressing portion 17, and the interval between the pressing portions 16 and 17 is set to a width that does not contact the disc 4 at the same time. There is.

When viewed in plan, the disk stocker 3 has an opening 18 for causing the disk 4 to largely protrude toward the right side of the disk reproducing means 6 and the main chassis 1 as shown in FIGS. 9 to 13. However, the space between the upper plate 19 and the lower plate 20 is divided into six disc storage spaces by five arc-shaped partition plates 21 provided in the inner portion of the disc storage.

That is, the space between the upper plate 19 and the uppermost partition plate 21 is the uppermost disk storage space, and the space between the lower plate 20 and the lowermost partition plate 21 is the lowest disk storage space. In the meantime, four disc storage spaces are formed between the adjacent partition plates 21. In addition, the edge of each partition plate 21 is a disc.
The thickness is thin so that 4 can be easily received.

On the left side of the disc stocker 3, there is provided a linear guide 22 which contacts the outer periphery of the disc 4 and linearly regulates the transfer path of the disc 4.
(See Figure 11).

On the other hand, as shown in FIG. 8, on the upper surface of the pallet 14, there is formed a shallow large-diameter recess 23 for mounting the large-diameter (12 cm diameter) disk 4, and a small diameter (8 cm diameter) is formed inside thereof. A small-diameter recess 24 for mounting the disc is formed concentrically with the large-diameter recess 23. A left arm portion 25 extending rearward is formed on the left side of the pallet 14, and the inner surface of the left arm portion 25 is flush with the linear guide 22 on the disk stocker 3 side, and the outer circumference of the disk 4 is formed. It is a linear guide 26 that contacts and regulates the transfer path of the disk 4 in a straight line.

Therefore, when one of the six discs 4 stored in the disc stocker 3 is selected and the information recorded therein is reproduced, first the disc stocker 3 is moved up and down. After setting the desired disc 4 at a predetermined height position, the slider 15 is moved from the disc stocker 3 toward the disc reproducing means 6, so that the desired pushing disc 16 is moved to the desired disc as shown in FIG. The outer periphery of the disc 4 is pushed, and the outer periphery of the disc 4 is transferred to the disc reproducing means 6 while continuously contacting the linear guide 22 on the stocker 3 side and the linear guide 26 on the pallet 14 side. After that, as shown in FIG. 10, the slider 15 is slightly returned so that both the pressing portions 16 and 17 are separated from the disk.

Further, in order to return the disc 4 from the disc reproducing means 6 to the disc stocker 3, the slider 15 is moved in the opposite direction, and the disc is pushed by the pushing back pushing portion 17 as shown in FIG.
The outer circumference of the disk 4 is pushed, and the outer circumference of the disk 4 is continuously brought into contact with the linear guide 26 on the pallet 14 side and the linear guide 22 on the stocker 3 side, and this is transferred to the innermost part in the disk stocker 3. After that, as shown in FIG. 12, the slider 15
By slightly moving it in the opposite direction so that both pressing parts 16, 17
It is in a state of being separated from.

Further, when it is desired to reproduce an external disc, the pallet 14 is pulled out to the outside of the apparatus as shown in FIG.
At that position, the disk on the pallet 14 may be replaced with a new desired disk.

The structure of each part will be described in detail as follows. The inner part of the disk stocker 3 is shown in Figs.
A holding component 27 as shown in FIG. 1 is inserted from above and attached to a fixed position in the stocker 3. This clamping part 27
Has eleven elastic pieces 28 in the shape of a comb, and two pairs are arranged from above to form the sandwiching portion 29. However, only the lowermost elastic piece 28 is assembled with the lower plate 20. The lower sandwiching portion 30 is configured.

As shown in FIGS. 2 and 3, the disk stocker 3 is screwed onto the base plate 31, and the base plate 31 has a lower end portion at two positions on the back side and the front side via the parallel link mechanism 32 and the sub chassis. It is mounted on the upper side of 2. Further, at the right side edge of the base plate 31, in order to synchronously operate both the back side and the front side parallel link mechanisms 32, a pinion 34 fixed to both ends of a horizontal shaft 33 is rotatably attached. The rack 34 is engaged with the rack 35 formed by cutting and raising the sub chassis 2.

As shown in FIG. 14, a nut 36 is fixed to the inner part on the left side of the base plate 31, and a hollow screw 37 is screwed into the nut 36. The hollow screw 37 is erected on the sub chassis 2. It is rotatably mounted on the shaft 38. And hollow screw 37
A gear 39 is integrally formed at the lower end of the.

The disk stocker 3 is driven up and down by a stocker lifting mechanism 40 provided on the sub chassis 2 as a disk selection mechanism.

That is, as shown in FIGS.
A small diameter gear 42 having a wide tooth width is fixed to the rotating shaft of 1. A clutch gear 43 consisting of large and small integrated gears is mounted near the motor 41 so as to be able to move up and down with the large-diameter gear portion facing upward, and the clutch gear 43 is constantly pressed downward by a spring 44. Near the clutch gear 43, there are a pair of two-stage gears 4 each consisting of a large and small gear.
5,46 are arranged.

One of the two-stage gears 45 has the large gear part facing upward,
The other two-stage gear 46 has the small gear portion facing upward. When the clutch gear 43 is in the lower position, the small gear portion of the clutch gear 43 meshes with the large gear portion of the other two-stage gear 46 as shown in FIG. Then, the small gear portion of the clutch gear 43 meshes with the large gear portion of the two-stage gear 45 on the one side.

Reference numeral 47 in FIG. 15 is an electromagnet, and reference numeral 48 is a seesaw lever which is attracted to the electromagnet 47 and rotates. The end of the seesaw lever 48 extends below the clutch gear 43.

When the electromagnet 47 is energized, the seesaw lever 48 is pulled by the electromagnet 47 and rotates to raise the clutch gear 43, so that the small gear portion of the clutch gear 43 meshes with the large gear portion of the two-stage gear 45. . As a result, the rotation of the motor 41 is sequentially transmitted to the small diameter gear 42, the clutch gear 43 and one of the two-stage gears 45, and further transmitted to the hollow screw 37 through the intermediate gears 49, 50 and 51 and the gear 39 in sequence. . Since the nut 36 fixed to the base plate 31 of the disc stocker 3 is screwed into the hollow screw 37, the disc stocker is rotated as the hollow screw 37 rotates.
3 will move up and down. Thus, the motor 41, the small diameter gear 42, the clutch gear 43, the two-step gear 45, the intermediate gears 49, 5
0, 51, the hollow screw 37, and the nut 36 constitute a stocker lifting mechanism 40 as a disk selection mechanism.

Next, as shown in FIGS.
Has a notch 52, 53 having a shape substantially matching with each hole at a position overlapping with each hole 5, 11 of the main chassis 1 when the main chassis 1 is fully moved inward. Figure 8
As shown in, the notch 52 at the back has a substantially semicircular shape,
It is formed in such a size that the disc 4 stored in the stocker 3 can pass vertically.

The notch 53 on the front side is elongated from the common center of the large-diameter recess 23 and the small-diameter recess 24 to the right side edge of the pallet 14 in the direction orthogonal to the moving direction of the pallet 14. Turntable through part 53
9 and the optical head 8 are passed over the pallet so that the optical head 8 can be moved left and right in that state (see FIG. 2).

On the right side of the pallet 14, a rack 54 having a tooth profile on the outer surface side is extended rearward in parallel with the left arm 25 as shown in FIG.

As shown in FIGS. 6, 17 and 18, mounting members 55, 56, 57, 58 and 59 are fixed to the left and right side portions of the upper surface of the main chassis 1 by fitting or screwing. The pallet 14 is slidably mounted on the main chassis 1 by movably fitting left and right side portions including the left arm portion 25 and the rack 54 of the pallet 14.

FIG. 17 is a perspective view of the mounting member 57 at the front end on the right side as seen from the rear side. To mount the mounting member 57 on the main chassis 1, the three legs 60 are mounted on the main chassis 1 as shown in FIG.
It is carried out by hooking it on the back surface side of and engaging the tip of the elastic piece 61 with the edge of the hole 62 provided in the main chassis 1.

The front-rear movement range of the pallet 14 is restricted as follows. FIG. 19 is a perspective view showing a part of the pallet 14 turned upside down. First, when the pallet 14 is pulled out to the outside of the apparatus, elastic locking claws provided on the back surface of the pallet 14 as shown in FIG. 63 contacts the cut-and-raised pieces 64 of the main chassis 1 shown in FIG. 6 so that the pallet 14 is not pulled out further than the position shown in FIG. 13 (FIG. 2).
0). When the elastic locking claw 63 is cut and raised and abuts on the piece 64, a protrusion provided near the locking claw 63 as shown in FIG.
65 operates the pallet position detection switch 66 arranged on the main chassis 1 to switch.

Further, when the pallet 14 moves from the outside of the apparatus toward the disk reproducing means 6 inside, as shown in FIG. 19, a locking projection 67 (one projection in FIG. 19) provided on the back surface of the pallet 14 is used. (Only shown) is the mounting member 55, 57 at the left and right front ends attached to the main chassis 1 (see FIG. 6).
The pallet 14 is prevented from moving further than the positions shown in FIGS.

A guide rail 68 is formed on the right side of the pallet 14 over the entire length in the front-rear direction as shown in FIG. 8. The lower surface of the slider 15 is shown in FIG. 22 (a perspective view of the slider 15 turned upside down). The fitting groove 69 is formed as shown in FIG.
It is mounted on 14 so that it can slide back and forth. Slider
The tooth profile of the rack 70 is formed on the right side surface of 15 as shown in FIG.

Further, on the back side of the pallet 14, as shown in FIGS.
A rotating member 71 as shown in 23 is attached. The member 71 has an engaging projection 72 on the back surface and a stopper projection 73 on the upper surface, and is urged to rotate in one direction by a spring 74. The stopper projection 73 projects to the upper surface side of the chassis 1 through a small long hole 75 (see FIG. 8) provided in the main chassis 1.

Therefore, when the pallet 14 is in the pull-out position shown in FIG. 13, the back surface flange portion 76 (see FIG. 22) of the slider 15 forms the upper surface flange portion 77 (see FIG. 8) of the pallet 14 and the stopper projection 73. Slider 15 against pallet 14 sandwiched between
Forward and backward movement is prohibited.

However, when the pallet 14 is at the position of the disc reproducing means 6 inside the apparatus shown in FIGS. 1 and 9 to 12, the engaging projection 72 is provided on the side surface of the mounting member 57 on the main chassis 1. Since the rotating member 71 is slightly rotated in the direction against the spring 74 by abutting the projection 78 (see FIG. 6), the stopper projection 73 is formed on the rear flange portion of the slider 15.
The stopper protrusion 73 loses the function of prohibiting the slider 15 from moving back and forth because the stopper protrusion 73 is positioned on the movement line of the cutout recess 79 provided in the 76.

The pallet 14 and the slider 15 are shown in FIG.
The disc loading mechanism 80 shown in FIG.

That is, in FIG. 24, reference numeral 81 is the main chassis.
With a motor bracket that is screwed to the right end of the back of 1,
On the back side of this bracket 81, there is a motor 82 for disc transfer.
Is fixed, the rotation shaft of the motor 82 is projected to the upper surface side of the bracket 81, and the small gear 83 is attached thereto. A pair of two-stage gears 84, 85 consisting of large and small gears are attached to the upper surface of the bracket 81, and these two gears are attached to the small gear 83.
The stepped gears 84 and 85 are sequentially meshed with each other to gradually reduce the rotation speed of the motor 82.

On the upper surface of the bracket 81, a pair of pinions 86 and 87 having the same shape are arranged in parallel. These pinions 86, 87 have a wide tooth width in the height direction, and gears 88, 89 are provided at the lower end.
Both gears 88 and 89 are meshed with a common intermediate gear 90 so that they rotate synchronously in the same direction. Then, of the pair of two-stage gears 84, 85, the small gear portion of the gear 85 located on the downstream side is meshed with the lower end gear 88 of one pinion 86, and the rotational force of the motor 82 is transmitted to both pinions 86, 87 for deceleration. I am trying to do it.

The pair of pinions 86 and 87 are shown in FIGS.
As shown in 3, on the right end side of the upper surface of the main chassis 1,
Located in the center of the main chassis 1 in the front-back direction,
Rack 54 on pallet 14 side and rack 15 on slider 15 side
And has the following meshing relationship.

That is, the rack 54 on the pallet 14 side is a pallet
When 14 is in the position of the disc reproducing means 6 shown in FIGS. 9 to 12, it is located further rearward than the rear pinion 86,
It does not mesh with either pinion 86 or 87. However, while the pallet 14 is being pulled out to the outside of the apparatus, it first meshes with the rear pinion 86 and then meshes with the front pinion 87. Then, when the rack 54 is at the maximum pulled-out position shown in FIG. 13, the rack 54 is disengaged from the rear pinion 86 and only meshes with the front pinion 87.

On the other hand, the rack 70 on the slider 15 side is the rack 70 when the slider 15 is at the innermost position of the apparatus shown in FIG. 11 and the fixed position on the disk stocker 3 side shown in FIG.
Only meshes with the rear pinion 86. However, when the pallet 14 is at the position of the disc reproducing means 6, and the slider 15 is at the position shown in FIG. 9 where the slider 15 has moved to the front end side of the pallet 14 by the maximum amount, and at the fixed position on the side of the disc reproducing means 6 shown in FIG. The rack 70 meshes with both pinions 86 and 87.

When the slider 15 moves further forward than the position shown in FIG. 9, it moves together with the pallet 14, and during the forward movement, the rack 54 on the pallet 14 side.
The pinions 86 and 87 will be successively engaged. Then, when the pallet 14 is at the pull-out position shown in FIG.
It is also out of 6,87.

By the way, since the disc reproducing means 6 and the disc stocker 3 are in a state in which the discs 4 located on both sides overlap each other in a plan view, the pallet 14 has a disc disc when the disc stocker 3 moves up and down. It has a notch 52 for passing the disc 4 in the stocker 3 in the vertical direction. And such a cutout 52
When the pallet 14 is pulled out to the outside of the apparatus as shown in FIG. 13, the notch 52 is exposed to the outside, so that the appearance as a product is not deteriorated by this, as shown in FIGS. A shield 91 as shown by 25 and 26 is provided, and the notch 52 is closed by the shield 91.

That is, a receiving plate 92 is fixed to the front end portion of the upper surface of the main chassis 1 as shown in FIG. 6, and the shield 91 is mounted on the receiving plate 92 so as to be movable in the front-rear direction. Since this shield 91 is located on the back side of the pallet 14, when the pallet 14 is inside the device, the shield 91 will not cover the pallet 14.
It is covered from above by. A spring 93 is stretched between the receiving plate 92 and the shield 91, and the shield 91 is always urged rearward by the spring 93. It is regulated by wall 94. Further, as shown in FIG. 13, an elastic piece 95 is provided on the left side surface of the shield 91, and a projection 96 is provided on the back surface of the pallet 14.

Therefore, the pallet 14 is the disk reproducing means 6
When the sheet is pulled out from the position to the outside of the device, the notch 52 is closed by the shield 91 during the movement thereof. And palette
When 14 further moves, the projection 96 comes into contact with the elastic piece 94, and thereafter the shield 91 moves together with the pallet 14 while stretching the spring 93. Therefore, when the pallet 14 is pulled out of the device, the pallet 14
The notch 52 is also exposed to the outside of the apparatus, but since the notch 52 is blocked by the shield 91 at that time, the appearance does not deteriorate.

At the rear end of the shield 91, a recess 97 is formed at the center position in the left-right direction, and a substantially L-shaped stopper member 98 is rotatably mounted in the recess 97 (FIG. 6). , 2
5,26). The central axis of rotation of this stopper member 98 is the pallet.
It is set in the horizontal direction that is orthogonal to the moving direction of 14. Further, the receiving plate 92 is provided with a rectangular hole 99 at a portion overlapping the stopper member 98.

Therefore, when the pallet 14 is at the position of the disc reproducing means 6 shown in FIG. 25, the long side of the stopper member 98 maintains a posture in which it is extended horizontally rearward by its own weight, and is longer than the disc mounting surface of the pallet 14. It is in a low position. The short side of the stopper member 98 extends downward and is inserted into the hole 99 of the receiving plate 92.

However, with the movement of the pallet to the outside of the apparatus, the projection 96 abuts the elastic piece 95 and the shield 91 is moved to the pallet 14
When it moves together with it, the stopper member 98 also moves with them in the rectangular hole 99. Then, the short side of the stopper member 98 comes into contact with the front edge of the rectangular hole 99, and the stopper member 98 rotates about 90 ° as shown in FIG. Stand up higher than the surface.

Motor 8 for disc transfer shown in FIGS.
2 appropriately drives the pallet 14 and the slider 15 according to the positions of the pallet 14 and the slider 15.

That is, when the pallet 14 is pulled out of the apparatus from the position of the disk reproducing means 6 by the motor 82, when the pallet 14 moves forward by the maximum amount, the elastic locking claws provided on the pallet 14 as described above. 63 cut and raised and abutted on the piece 64,
At the same time, the protrusion 65 provided on the pallet is the pallet detection switch.
Since the switching operation of 66 is performed, the position of the pallet 14 is detected by this, and the motor 82 stops upon receiving this detection signal.
(Figs. 19, 20, 21).

On the contrary, when the pallet 14 is moved from the pull-out position to the inside of the apparatus, when the pallet 14 is moved to the position of the disk reproducing means 6, as described above, the collar portion of the pallet 14 is moved.
77 contacts the mounting members 55 and 57, and at the same time, the projection 100 provided on the rear surface side of the pallet 14 shown in FIG. 19 switches the pallet detection switch 66 from the opposite direction, whereby the position of the pallet 14 is detected. The motor 82 stops upon receiving this detection signal.

The position of the slider 15 is detected by the photo coupler 101 shown in FIGS. 8, 9 to 13
As shown in the figure, a pair of front and rear slits 10 are
2, 103 are formed, and the front slit 102 is a slider
15 corresponds to the position on the disk stocker 3 side, and the rear slit 103 corresponds to the position of the slider 15 on the disk reproducing means 6 side.

That is, when the slider 15 transfers the disc 4 from the disc stocker 3 to the disc reproducing means 6, the rear slit 103 moves from the rear position of the photo coupler 101 to the front, and the slider 15 just moves the disc. When reaching the fixed position of the reproducing means 6, the photo coupler 101 detects the slit 103. After inputting this detection signal, the motor 82 further rotates in the same direction by a certain amount excessively, and then slightly reversely rotates and stops.

On the contrary, when the slider 15 transfers the disc 4 from the disc reproducing means 6 to the disc stocker 3,
When the front slit 102 moves rearward from the front position of the photo coupler 101 and the slider 15 reaches a fixed position on the disk stocker 3 side, the photo coupler 101
Detects the slit 102. After inputting this detection signal, the motor 82 further rotates in the same direction by a certain amount excessively, and then slightly reversely rotates and stops.

The disk transfer motor 82 is controlled as follows in accordance with the type of disk placed on the pallet 14.

That is, as shown in FIGS.
The areas of the large-diameter recess 23 of 14 and the area of the small-diameter recess 24 are provided with through holes 104 and 105, respectively, and the positions of these through holes 104 and 105 are set so as to pass a common point as the pallet 14 moves. To be done. A light emitter 106 (FIG. 6, 27) is attached to the common point on the main chassis 1, and a light receiver 107 (FIG. 1, FIG. 1) is attached to the common point on the bracket 12.
27) is attached, and the light emitting device 106 and the light receiving device 107 constitute the disk detecting means 108 (FIG. 2).
7).

Therefore, when the pallet 14 is returned from the pull-out position outside the apparatus to the position of the disk reproducing means 6, the through holes 104, 105
Sequentially pass through the position of the disk detecting means 108.

At this time, if the disk placed on the pallet 14 is a large-diameter disk, the optical path of the large-diameter disk is used regardless of which of the through holes 104 and 105 is located in the optical path from the light emitter 106 to the light receiver 107. Is shut off, but the pallet
If the disk on 14 is a small-diameter disk, the optical path is blocked only when the through-hole 105 for the small-diameter disk is located in the optical path. Further, when the disc is not placed on the pallet 14, the optical path is not blocked even if any of the through holes is located in the optical path.

The detecting means 108 outputs different detection signals in each case, and the motor is driven only when the large-diameter disk is mounted or when nothing is mounted.
It controls to start 82.

The unit chassis 7 of the disc reproducing means 6 is attached to a frame body 109 made of synthetic resin as shown in FIGS. That is, as shown in FIG. 28 (a perspective view showing a part of the disc reproducing means 6 in a disassembled state), the frame 109 and the unit chassis 7 have mounting holes 110 and 111 at four corners, respectively.

The frame coil 1 is obtained by fitting the compression coil spring 113 around the flanged rubber bush 112.
It is sandwiched between 09 and the unit chassis 7, and the mounting hole of the frame 109
Insert the mounting tool 114 from 110, and with the rubber bush 112 and the spring 113 slightly compressed in the axial direction, mount tool 1
After passing the tip of 14 to the outside of the mounting hole 111 of the unit chassis 7, the mounting tool 114 is rotated about a half turn to fix the unit chassis 7 to the frame 109.

As shown in FIGS. 4 and 5, a flexible mounting piece 115 is integrally formed on one side surface of the frame 109.
By screwing 15 onto the inner surface of the right side wall of the main chassis 1, the free end side of the frame body 109 can be rotated up and down.

A cam pin 116 is projectingly provided on the other side surface of the frame 109. In addition, as shown in Figs.
A cylindrical cam 118 having a spiral cam groove 117 is mounted on the upper surface of the. The cylindrical cam 118 has a gear 119 at its lower portion, and the gear 119 is meshed with the small gear portion of the two-stage gear 46. The cam pin 116 is provided in the cam groove 117.
Is being inserted.

Therefore, when the clutch gear 43 is at the lower position as shown in FIG.
The deceleration is transmitted to the cylindrical cam 118 through the 43 and the two-stage gears 46 in order, and the disc reproducing means 6 is accompanied by the rotation of the cylindrical cam 118.
However, it rotates up and down while bending and extending the base of the mounting piece 115.

As shown in FIG. 4, the turntable drive motor 10b is attached to the left end portion of the rear surface of the unit chassis 7, and the turntable 9 is attached to the rotary shaft projecting to the upper surface side of the chassis 7. And turntable 9
On the right side of, the optical head 8 is provided movably in a direction of approaching and separating from the turntable 9, and the optical head 8 is driven by the head drive motor 10a. The rotation shaft of the head drive motor 10a projects to the upper surface side of the unit chassis 7, and a small gear 120 is attached to this shaft as shown in FIGS.

On the other hand, a rack 121 is attached to the optical head 8. The small gear 120 constitutes a reduction mechanism by sequentially meshing a pair of two-stage gears 122 and 123, which are large and small integrated gears, and the rack 121 is meshed with the small gear of the downstream two-stage gear 123 to drive the head. The optical head 8 is driven by the motor 10a.
It is designed to move back and forth in a straight line.

The moving direction of the optical head 8 is such that the disc between the disc reproducing means 6 and the disc stocker 3 is moved.
It is set so as to be orthogonal to the transfer direction of 4 on the plan view. In FIG. 28, reference numeral 124 is a guide shaft that regulates the moving direction of the optical head 8.

In addition, the disk 4 in the disk stocker 3
When the stocker 3 is moved up and down toward the disk reproducing means 6, when the stocker 3 is moved up and down, the projected disk may come into contact with the pallet 14 to damage the disk, or the movement of the stocker may be hindered. In order to prevent such a problem from occurring, the disc reproducing means 6 is used in this embodiment.
The disc 4 other than the stage corresponding to is the disc reproducing means 6
A protrusion preventing piece 125 is provided so as not to project toward (FIG. 1).

Further, as shown in FIGS. 6, 10 and 13, a stopper member 127 is rotatably provided in the inner portion of the main chassis 1. The stopper member 127 is urged to rotate in one direction by a spring 128, engages with a protrusion provided on the pallet 14, and stably holds the pallet 14 at a predetermined position inside the apparatus. The pallet 14 can be pulled out to the outside of the apparatus by rotating the stopper member 127 in the other direction against the spring 128.

With the above structure, the following operational effects can be obtained. First, the holding portions 29, 30 for holding the outer peripheral edge portion of the disk are provided inside the disk stocker 3, and when the disk 4 is transferred, the outer circumference of the disk is brought into contact with the linear guides 22, 26, while the other part of the outer circumference of the slider 15 is moved. After pressing the pressing parts 16 or 17 to transfer them to the final transfer position, the slider 15 is slightly returned to separate the pressing parts 16 and 17 from the disk. The configuration is extremely simple as compared with the one described above.

Moreover, since the disk is stored in the stocker 3 as it is without using the tray, the driving force at the time of transfer can be small, and the stocker 3 can be made compact and lightweight. Also, the dimensions in the disc transfer direction (depth direction) are
Playback is performed in a state where it overlaps with the disk in 3, and the moving direction of the optical head 8 is set to be a direction orthogonal to the transfer direction of the disk, whereby the time can be greatly shortened.

By the way, when the disc stocker 3 and the disc reproducing means 6 are vertically moved relative to each other to select a disc, the pallet 14 has a notch so that the disc in the stocker 3 does not come into contact with the pallet 14. In this case, when the pallet 14 is pulled out to the outside of the apparatus and the notch 52 is exposed to the outside, the notch 52 is closed by the shield 91, so that the commercial value is provided. Will be improved.

Further, since the shield member 91 is provided with the stopper member 98 which stands up in association with the pulling-out operation of the pallet 14, when the disc is placed on the pallet 14, the disc is slid into the inside of the apparatus by itself. There is no fear.

The present invention is not limited to the above embodiments. For example, the disc stocker is not limited to six discs, but may be any disc stocker that can store a plurality of discs.

[0085]

As described above with reference to the embodiments, according to the present invention, the disc stocker for accommodating a plurality of discs and the disc reproducing means are close to each other so that both discs partially overlap each other. In a disc reproducing apparatus in which the depth dimension of the entire apparatus is reduced, a pallet movable between the position of the disc reproducing means and the outside of the apparatus is provided with a notch portion, and the stocker and the disc reproducing means are relatively arranged. It prevents the disc in the stocker from coming into contact with the pallet when it is moved up and down, and a shield plate is provided on the lower surface side of the pallet so that when the pallet is pulled out to the outside of the device, the shield has a notch. By appearing at the closing position, the space is hidden even when the notch is pulled out of the device, so the appearance of the product is impaired by the presence of the notch. Rukoto is not.

[Brief description of drawings]

FIG. 1 is a perspective view showing a mechanical portion of a disc reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the above mechanical portion.

FIG. 3 is a vertical sectional view of the disk stocker.

FIG. 4 is a front view showing a part of a cross section of the disk reproducing means.

FIG. 5 is a perspective view showing a main part of a disc reproducing means.

FIG. 6 is an exploded perspective view showing the relationship between the main chassis and the shield.

FIG. 7 is a perspective view showing a relationship between a main chassis, a pallet and a slider.

FIG. 8 is an exploded perspective view showing the relationship between the pallet and the slider.

FIG. 9 is a schematic plan view showing a disc transfer operation from the disc stocker to the disc reproducing means.

FIG. 10 is a schematic plan view showing a state in which the disc is in the reproduction position.

FIG. 11 is a schematic plan view showing a disc transfer operation from the disc reproducing means to the disc stocker.

FIG. 12 is a schematic plan view showing a state where all the disks are in the disk stocker.

FIG. 13 is a schematic plan view showing a state in which a pallet is pulled out of the apparatus.

FIG. 14 is a side view showing a mechanism for moving the unit chassis of the disc reproducing means and the disc stocker.

FIG. 15 is a front view showing a clutch gear switching structure.

FIG. 16 is a perspective view showing the periphery of the seesaw lever.

FIG. 17 is a perspective view of a mounting member

FIG. 18 is a side view showing a mounting state of the mounting member.

FIG. 19 is a perspective view of a part of the pallet seen inside out.

FIG. 20 is a side view showing a partial cross section of a pallet movement prohibited state.

FIG. 21 is a plan view around the pallet position detection switch.

FIG. 22 is a perspective view of the slider as seen inside out.

FIG. 23 is a plan view partially showing the relationship between the pallet and the slider.

FIG. 24 is a perspective view showing a mechanism for driving a slider and a pallet.

FIG. 25 is a side view showing a partial cross section of the operation of the stopper member.

FIG. 26 is a side view showing the standing state of the stopper member in a partial cross section.

FIG. 27 is a vertical cross-sectional view showing the periphery of the photo coupler.

FIG. 28 is an exploded perspective view showing a part of the disc reproducing means.

[Explanation of symbols]

3 ... disk stocker, 4 ... disk, 6 ... disk reproducing means, 14 ... pallet, 15 ... slider (disk transferring means), 40 ... stocker lifting mechanism (disk selecting mechanism), 52 ...
Notch, 91 ... Shield, 98 ... Stopper member.

Claims (3)

[Claims] 1. A disc reproducing means (6) for reproducing information recorded on a disc (4), and a movable means provided between a position of the disc reproducing means (6) inside the device and a position outside the device. In addition, a pallet (14) on which the discs (4) are placed and a plurality of discs (4) are arranged vertically and accommodated individually, and these discs (4) are disc reproducing means (6). ), The disc stocker (3) is arranged close to the disc reproducing means (6) to such an extent that it partially overlaps the disc (4) on which information is reproduced, and the disc stocker (3) and the disc reproducing means (6). ) Is relatively moved up and down to select one of the plurality of disks (4) held by the disk stocker (3).
0) between the disc stocker (3) and the pallet (14).
In a disc reproducing apparatus provided with a disc transferring means (15) for transferring (4), the pallet (14) is a disc stocker (3) and a disc reproducing means (6) when the disc moves up and down relatively. It has a notch (52) for passing the disc (4) held in the stocker (3) in the vertical direction, and the pallet (14) moves to the outside of the device on the lower surface side of the pallet (14). Accordingly, the disk reproducing device is provided with a shield (91) that appears at a position that closes the notch (52). 2. When the pallet (14) is located at the disc reproducing means (6) inside the apparatus, a stopper member (98) located below the disc mounting surface of the pallet (14) is provided, and the pallet (1
With the movement of (4) to the outside of the device, the stopper member (98) stands up to a position higher than the disc mounting surface of the pallet (14), so that the disc (4) supplied onto the pallet (14).
2. The disc reproducing apparatus according to claim 1, wherein excessive insertion of the disc is prohibited. 3. The disk reproducing apparatus according to claim 2, wherein the stopper member (98) is provided on the back surface side of the shield (91).