JPH02201769A - Automatic changer device for disk - Google Patents

Abstract

PURPOSE:To vertically move a tray shifting means in a level state even when a case and a guide rail tilt by attaching the both edges of the tray shifting means to a pair of timing belts, and vertically moving the tray shifting means by means of the timing belts. CONSTITUTION:A tray shifting means 10 is provided on the top face of a moving base 6, a shaft 2c is rotated by the rotation of a motor, timing belts 2 shift, the moving base 6 is guided by a guide rail 7, and vertically moves according to the rotating direction of the motor. At such a time, a wire 3 where a weight 4 is fixed is attached to the moving base 6 to keep balance with the moving base 6, and a projecting guide roller, which is provided so as to clamp the front and rear faces of the guide rail 7, and the guide roller abutting on the side face of the guide rail 7 are attached to the both edge parts of the moving base 6. Thus even when a case 1 tilts, the tray shifting means 10 can vertically move in the level state.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a disc autochanger device that stores a large number of discs such as video discs and compact discs, and selects and plays a desired disc by external operation. .

[Conventional technology]

Conventionally, this type of disc autochanger device pulls out a desired tray from a tray guide arranged in multiple stages using a tray transfer means provided in a case in a vertically movable manner, and then transports the pulled out tray to a disc player. In the player, the disc is pushed up from the tray and played by a pick amplifier.

By the way, when pulling out the tray from the tray guide mentioned above or inserting the pulled out tray into the disc player, if the tray transport means and the tray guide or the tray transport means and the disc player are not aligned accurately, The tray cannot be transferred. That is, since it is necessary to horizontally move the tray transfer means up and down, the case is made to be sturdy so that the guide rail supporting the tray transfer means does not tilt diagonally.

[Problem to be solved by the invention]

However, in order to make the case sturdy and prevent the case from tilting diagonally as mentioned above, it is necessary to use a large number of connecting materials in the case, and it is also necessary to use thick materials. Therefore, there was a problem that the weight became heavy and the cost became high.

[Purpose of the invention]

The present invention aims to solve the above-mentioned problems, and its purpose is to attach a pair of timing belts to both ends of the tray transfer means, and to move the tray transfer means up and down by the timing belts. Therefore, even if the case is tilted and the guide rail is tilted, the tray transfer means can move up and down in a horizontal state.

[Summary of the Invention] The present invention aims to achieve the above-mentioned object, and its gist is that a pair of guide rails are formed on both sides of a case, and a pair of left and right guide rails are formed on both sides of the case, and a pair of left and right guide rails are formed on both sides of the case. A timing belt is used to vertically move a tray transport means, which is equipped with a guide roller and left and right guide rollers that elastically abut against the guide rail from a direction perpendicular to the guide roller. It is.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
The figure is a front view of the whole, and FIG. 2 is a plan view of the same.

In the figure, 1 is a case in which a front-openable door 1a is attached and registered, 2 is a timing pulley 2a attached to two places on the left and right on the top plate 1b of the case 1, and a timing pulley 2a attached on two places on the left and right on the bottom plate 1c. timing pulley 2b
The timing pulley 2b is connected by one shaft 2C, and as this shaft 2c is rotated by a motor (not shown), the pair of timing belts 2 are synchronously wound. will be moved.

Reference numeral 3 denotes an endless wire wound between the boots IJ aa attached to the left and right sides of the top plate part 1b and the bottom plate part 1c of the case 1, respectively, and one of the wires 3 is connected to a moving base to be described later. A weight 4 is fixed to maintain balance with the stand 6. Note that this weight 4 is guided by a guide rail 5 fixed to the case 1, and when the wire 3 moves, the weight 4 is guided by the guide rail 5 and moves.

Reference numeral 6 denotes a moving base whose both ends are guided by guide rails 7 provided parallel to the guide rail 5, and to which the pair of timing belts 2 and the wire 3 on the side to which the weight 4 is not attached are attached. It is used as a stand and is guided by the guide rail 7 described above as shown in FIGS. 2 and 3. That is, four guide rollers 6a that protrude to sandwich the front and rear surfaces of the guide rail 7, and a guide roller 6b that abuts the side surface of the guide rail 7 are attached to both ends of the movable base 6, respectively.

Also, one guide roller 6b (left side in FIG. 2)
is spring biased by spring 6C, and guide rail 7
In contrast, the movable base 6 is prevented from moving loosely in the left and right direction. Note that the protrusions 6d protruding from both end surfaces of the movable base 6 are for attaching the wire 3,
Further, the recesses 6e on the front surfaces of both ends are for fixing the timing belt 2.

Next, the operation for moving the movable base 6 up and down based on the above-described configuration will be explained.

When a motor (not shown) rotates, the shaft 2C rotates, so the timing belt 2 moves and the movable base 6 is guided by the guide rail 7 and moves up and down in accordance with the rotational direction of the motor. At this time, the wire 3 to which the weight 4 is fixed is attached to the movable base 6 to maintain balance with the movable base 6, so even if the rotational force of the motor is not so large, the movable base 6 can be moved up and down. is carried out smoothly.

8. 8' is a pair of left and right rails that guide one tray 9, which will be described in detail later, and the angle connecting the center line of each tray guide to the left and right of the middle part on the back side of the case 1 is approximately 60 degrees. They are arranged in multiple stages so that Grooves into which the side surfaces of the trays 9 are inserted and removed are formed in opposing surfaces of the rails of each of the tray guides 8, 8'.

Reference numeral 10 denotes a tray transfer means disposed on the upper surface of the movable base 6, which extracts the tray 9 guided by the tray guides 8 and 8', and transfers the tray 9 to the disks disposed above and below the case 1, which will be described in detail later. It is transferred to either the player 11, Il', and also to the disk player 11, 11.
At ', the L-ray containing the disc D that has been played back is transferred to a predetermined tray guide 8, 8'.

Next, the details of the tray 9 will be explained with reference to FIG. 4. The tray 9 is formed to a size on which a 30 cm disk D is placed, for example, and is made of a steel plate in order to obtain rigidity, and is lightweight. It is formed by punching, leaving only the multiple crosspieces, in order to make it more compact. Protective parts 9c and 9d made of synthetic resin are integrally formed at desired locations on the central crosspiece 9a and the outer peripheral part 9b to prevent the disc D from directly contacting the steel plate and causing damage. In addition,
A rising piece is formed on the protective portion 9d of the outer peripheral portion 9b, and guides the disk D.

Further, a protrusion 9e that is inserted into the tray guides 8 and 8' described above is formed on the opposing portion of the outer peripheral part 9b of the tray 9, and also engages with a protrusion 8a formed on the tray guide 8 and 8'. An elastic engagement piece 9f to be engaged is integrally formed, and a hook 9 that engages with a hook arm 10 of a tray transfer means 10, which will be described later, is provided on the protection part 9d of the outer peripheral part 9b.
g is formed.

Next, the tray 9 is pulled out from the tray guide 8 or 8' and loaded into the disc player 11 or 11', or the tray 9 is pulled out from the disc player 11 or 11'.
The details of the device for returning the drawer to the tray guide 8 or 8' will be explained in conjunction with FIGS. 2, 3, and 5 to 14.

Rotating arms 6g, 6g' are mounted on the lower surface of the movable base 6.
Two gears 6f, 6f' are fixed to the lower surface, and each gear 6f, 6f' is a two-stage gear 6.
It is meshed with pinion h. The large gear of this two-stage gear 6h is meshed with a worm gear 6j rotated by a motor 61 attached to the lower surface of the movable base 6. Therefore, when the motor 61 rotates, the two gears 6f and 6f' are rotated in the same direction via the worm gear 6j and the two-stage gear 6h.

Further, a ring-shaped recess 6k is formed on the upper surface of the movable base 6, and a pair of protrusions 61. ．． 6C is formed.

] 2 is a rotating disk made by integrating two disks in a shifted state, and the ring-shaped recess 6 of the moving base 6 described above is formed on the front side of each disk, and the rotating plate 13 is formed on the back side of the rotating plate 13, which will be described later. A ring-shaped recess 12a is fitted into the ring-shaped recess 13a.
, 12b are formed. And this rotating disk 12
The ring-shaped recess 12a on the back surface side is fitted into the ring-shaped recess 6k of the movable base 6, and the shaft portion 14a of the rotating member 14 is inserted into the center hole 6m from the back surface of the movable base 6. The portion 14a is rotatably attached to the upper surface of the movable base 6 by screws 14b.

Reference numeral 13 denotes a rotating plate having a ring-shaped recess 13a formed on the back surface, and the above-mentioned rotating disk 12 is inserted into this ring-shaped recess 13a.
The four upper ring-shaped portions 12b are fitted and fixed by screws 13b inserted from the upper surface of the rotating plate 13. Guide grooves 13c and 13c' are formed on both left and right sides of the back surface of this rotary plate 13, into which the protrusions 6j2 and 6n' of the movable base 6 are selectively inserted and guided, and a pair of guide grooves parallel to the upper surface are formed. A guide bar 13d is formed.

Note that 12c is a retainer inserted between the four ring-shaped parts 12a and 16 and between the ring-shaped recesses 12b and 13a, and 12d is the retainer 12c.
The ball is inserted into a hole formed in the hole.

Reference numeral 14 denotes a rotating member having a shaft portion 14a fixed to the rotary disk 12 with a screw, and the rotating arms 6g, 6g' described above.
Bifurcated guide grooves 14c, 14C' into which rollers 6g1.6gt' provided at the tip of the shaft are selectively inserted and guided are formed except for a notch 14d formed near the shaft portion 14a. Further, a crocodile portion 14e is formed over approximately 180 degrees on the outer periphery of the shaft portion 14a, and three switches 31 to S are turned on when abutting against the flange portion 14e.
3 are arranged at approximately 90 degree intervals.

Reference numeral 15 is a back and forth movement that is guided by the guide bar 13d of the rotary plate 13, and a tray transfer means 10 is installed on the upper surface. That is, the tray transfer means 10 includes a motor 10a attached to the above-described back and forth moving plate 15, a worm 10b having two thread grooves rotated by the motor 10a, and a pair of gears 10c meshing on both sides of the worm 10b. and the belt 10 via the pulley portion formed on each gear 10c and two pulleys 10d.
A pair of large pulleys 10f connected by e, and rotating arms 10 each integrally attached to the large pulleys 10f.
g, and the roller 10 of the rotary arm Log is inserted into a long hole 10h' formed in the longitudinal direction, one end of which is pivotally supported by the back and forth moving plate 15.
A pair of control arms 10h into which the arrows g′ are inserted, and one end of which is connected to the control arm 10 on the back surface of the longitudinal movement plate 15.
A movable arm 101 rotates integrally with one side of the movable arm 101 and has the other end engaged with a protrusion 13e formed on the rotary plate 13, and two movable arms are formed on each side of the forward and backward movable plate 15. A movable body 10j guided by a guide bar 15a and engaged with the tip of the control arm 10h, and a hook arm 10 rotatably supported by a pin 10j' implanted in the movable body 10j. Return arm 10! The hook arm 10 is provided with a winding spring 10m that urges the return arm 102 clockwise on the left side and counterclockwise on the right side, and a spring that is slidably supported on the movable body 10j. The shaft rod 10n is biased by a spring in the forward direction of the movable body 10j by a shaft rod 10n'. The protrusion 10 formed on the upper surface of the hook arm 10 described above is replaced by the protrusion 10 formed on the lower surface of the return arm 10j2 described above! ', and a protrusion 10 formed on the lower surface of the return arm 10°C.
! " is adapted to engage with the rear end of the shaft rod 10n. Therefore, the return arm 10I!, is adapted to engage with the rear end of the shaft rod 10n. Therefore, the return arm 10I!, is the protrusion 10ρ"
is in contact with the rear end of the shaft rod 10n, so that the winding spring 1
The rotational force due to 0 m is regulated to the state shown in FIG.
, the coiled spring 10 is in contact with the protruding piece 101' of
The rotational force due to m is the same (it is regulated to the state shown in FIG. 7.
The elastic engagement piece 9f of the tray 9 is engaged with the protrusion 8a of the tray 9.
A release pin 10o that comes into contact with and releases the engagement is provided to protrude forward from the shaft rod 10n.

Furthermore, guide grooves 15b for guiding the tray 9 are formed on both sides of the back and forth moving plate 15, and the guide grooves 15b
5b is provided with the return arm 1 when returning the tray 9 to the tray guides 8, 8' formed in the case 1.
A regulating piece 15c is formed so that it can rotate freely in the rear direction where it engages with Oj2, but cannot rotate in the front direction.

Next, the operation for transferring the tray 9 based on the above configuration will be explained.

First, before starting the engine, each member is in a state as shown in FIG. That is, the rollers 6gx and 6gt' of the rotating arms 6g and 6g' are rotated by the rotating member 1 at the center position.
The protrusions 6I inserted into the guide grooves 14c, 14c' of No. 4 and formed on the movable base 6! ,,6j2' is rotating plate 1
3 are inserted into guide grooves 13c and 13c' formed on the lower surface of the holder. Note that at this time, the switch S2 is turned on by the collar portion 14e.

In this state, the motor 61 is energized and the gear 6 f
, 6f' rotates in the clockwise direction shown in FIG. 6, the rotating arm 6g remains inserted into the guide groove 14c of the rotating member 14, and the other rotating arm 16f' The rotating member 14 is rotated clockwise by the rotating arm 6g.

On the other hand, the protrusion 61 remains inserted into the guide groove 13c, while the other protrusion 6j2' separates from the guide groove 13c'.

Therefore, the rotating plate 13 is connected to the rotating disk 12 with respect to the movable base 6.
The guide groove 13c is rotated counterclockwise around the engagement portion between the protrusion 61 and the guide groove 13c as a fulcrum. When the rotating member 14 is rotated approximately 90 degrees and the switch S2 is turned on by the alligator portion 14e, the power to the motor 61 is cut off and the rotation of the rotating plate 13 is stopped at the position shown in FIG.

Further, when the motor 6 is rotated in the opposite direction to that described above, the gears 6f and 6f' are rotated in the opposite direction to that shown in FIG.
Rotating plate 1 with the engagement portion between ' and guide groove 13c' as a fulcrum.
3 in a clockwise direction.

When the rotary plate 13 is rotated counterclockwise or clockwise in this manner, the rotary plate 13 comes into a state facing the tray 9 inserted into the tray guides 8, 8' in the case 1.

As described above, the switch Sa is turned on and the rotating plate 13
When the motor 10a stops, the motor 10a is energized and the two worms 10b are rotated. When the worm 10b is rotated, the pair of gears 10c are rotated, and the large pulley 10f is rotated in the direction of the arrow in FIG. 7 via the bell 10e wound around the pulley formed on the pair of gears 10c. . Here, the reason why the worm 10b has two stripes is because the worm 10b has two strips.
This is to synchronize and rotate the pair of gears 10c that are meshed with each other. When each large pulley 10f is rotated, the rotating arm 10g fixed thereto is rotated in the same direction as the large pulley 10f, thereby rotating the pair of control arm 10h and moving arm 10i. Here, when the movable arm 10i is rotated counterclockwise, since the tip of the movable arm 10i is engaged with the protrusion 13e of the rotary plate 13, the forward and backward movable plate 15 is rotated by the guide bar 13d.
The tray 9 moves forward while being guided by the tray guide 8 or 8' of the case 1.

On the other hand, the pair of control arms 10h each have a rotation arm Log
When the control arm 10h is rotated in the same direction, the movable body 10j engaged with the tip of the control arm 10h is guided by the guide bar 15a and moves forward. Then, the movable body 10j moves forward, and just before the end of its forward movement, the release pin 10o comes into contact with the elastic engagement piece 9f of the tray 9 to release the engagement with the protrusion 8a of the tray guide 8 or 8'. The shaft Ion contacts the projection 9e of the tray 9 and retreats against the spring force of the spring 100', returning the arm 10I! , is rotated against the coiled spring 10m, and the hook arm 10 once contacts the hook 9g of the tray 9, rotates against the spring force of the coiled spring 10m, and then engages with the hook 9g. (Figure 9).

When a switch (not shown) detects this forward end state,
After the motor 10a is once stopped, the motor 10a is rotated in the reverse direction. Due to this reverse rotation, the back-and-forth movable plate 15 retreats, and the movable body 10j also retreats by an operation opposite to that described above. Then, when the moving body 10j retreats,
The hook arm 10k is engaged with the hook 9g of the tray 9, and the release pin 10o contacts the elastic engagement piece 9f of the tray 9 to release the engagement with the protrusion 8a of the tray guide 8 or 8'. Therefore, as the movable body 10j moves backward, the tray 9 is pulled out from the tray guide 8 or 8' and drawn into the guide groove L5b of the longitudinal movement plate 15, while the longitudinal movement plate 1 is pulled out.
5 and the moving body 10j return to their initial positions (Fig. 10,
Figure 2).

In addition, in the return operation of the moving body 10j, the return arm 10I! comes into contact with the regulating piece 15c on the guide groove 15b of the back-and-forth movable plate 15, but since the regulating piece 15c freely rotates in the rear direction, the return arm 101 passes through the regulating piece 15c while rotating it. .

In this way, when the back-and-forth moving plate 15 and the movable body 10j return to their initial positions, a switch (not shown) operates to stop the rotation of the motor 10a, and at the same time, energizes the motor 61 to move the rotating plate 13 as described above. is returned to the neutral position shown in FIG. 6 by the reverse operation, and when the switch S2 is turned on, the power supply to the motor 61 is cut off and stopped.

In this way, when the switch S2 is turned on, the motor 10a is energized again and the back-and-forth moving plate 15 moves forward, and the movable body 10j also moves forward. As the moving body 10j moves forward, the tray 9 moves forward without being inserted from the guide groove 15b into a guide groove 111ks formed in a disc player 11 or 11', which will be described later. Then, near the end of the forward movement of the movable body 10j, the return arm 101 comes into contact with the regulating piece 15c, but at this point, since the regulating piece 15c cannot rotate forward, the returning arm 101
It is rotated against a spring force of 0 m.

When the return arm 101 is rotated, the return arm 10i
Projection piece 10I! , ' is pulled by the protrusion 10 of the hook arm 10 that is engaged with ', so the hook arm 10 also returns the arm 10ffi against the spring force of the coiled spring 10m.
Therefore, the attachment between the footer arm 10 and the hook 9g of the tray 9 is released. When the footer arm 10 is disengaged from the hook 9g,
The tray 9 is connected to the disc player 11 or 11' by a shaft 10n which is biased by a spring 10n'.
is pushed to the end of the guide groove 111ka, and
When the back-and-forth moving plate 15 and the movable body 10j move to the end, the power to the motor 10a is cut off and the movement is stopped in the same way as described above (FIGS. 11 and 13).

Then, when the movement is stopped, the motor 10a starts rotating in the opposite direction, so that the back and forth moving plate 15 and the transfer body 10j start moving backward. Due to this retreat of the transfer body 10j, the release pin 10
0, the elastic locking piece 9f is separated from the guide groove 1 of the disc player 11 or 11'.
While being engaged with a hook 1llka formed in 11ka, the shaft 10n continues to push the tray 9 by the spring force of the spring 10n'. Therefore, the tray 9 is set in the disc player 11 or 11'.

When the playback by the disc player 11 or 11' is finished, the tray 9 is returned to the tray transfer means 10 by the same operation as the operation of taking it out from the guide rail 8 or 8' of the case 1, and the tray 9 is returned to the tray transfer means 10.
The tray 9 returned to 0 is connected to the disk player 11 described above.
Alternatively, it is returned to the guide rail 8 or 8' by the same operation as the transfer to the guide rail 8 or 11'.

Further, FIG. 14 is a plan view showing the state in which the tray 9 is transferred.

Next, the structure of the disc player 11 or 11' arranged above and below the case 1 will be explained with reference to FIGS. 15 to 26. In addition, the disc players 11, 11'
Since both have the same configuration, only the upper disc player 11 will be described.

The disc player 11 has a pickup 1 so that it can read information recorded on both sides of a disc D supported by a turntable and a clamper, which will be described later.
11e are arranged above and below the disk D. That is, as shown in FIGS. 15 and 16, they are arranged at a desired interval, and the upper disc player 112 is attached to the lower disc player 111.

The specific structure of the lower disc player 111 will be described below with reference to FIGS. 15 to 19.

Reference numeral 111a is a box fixed to the case 1, and support shafts 111b are connected from two places of the box 111a.

111c is hanging down. Reference numeral 111f is a known turntable 1lld that holds the disk D between it and a clamper to be described later, and a pickup 11ie that moves toward and away from the turntable 111d in the horizontal direction and reads information on the disk D is attached. A fixed roller 111fs that comes into contact with the support shaft 111b and a movable roller 111f2 that comes into elastic contact with the support shaft 111fs are attached to one end of the pick-up base, and the support shaft 111c is attached to the other end of the pickup base. Two fixed rollers 111 fs and 111 f4 that come into contact with the rollers 111 fs and a movable roller 111 fa that come into elastic contact with the spring 1llfs are attached. Therefore, the pickup base 111f has the above-mentioned rollers 1llfs~1.
11 fs, it is supported to be movable only vertically.

Reference numeral 111g is a slide plate that is slidably attached by rollers 1llat arranged on the front and rear surfaces of the box 111a, and the front slide plate has one guide hole 111g5 in the shape of a rectangular shape. Further, two guide holes (not shown) similar to those described above are formed in the rear slide plate. Furthermore, a rack 111g2 is formed on a part of the upper edge of the slide plate 111g, and a gear 111h1 fixed to both ends of a rotating shaft 111h rotated by a motor (not shown) is meshed with this rack 111g2. Therefore, when the motor rotates and the gear 111h1 is rotated, the slide plate 111g moves to the left as shown in FIGS. 15 and 16.

A rotating arm 1111 whose one end is pivotally supported is attached to the pickup base 111f, and a pin 111i1 protruding from a substantially central portion of the rotating arm 1111 is inserted into a guide hole g1 of the slide plate 111g. And rotating arm 1
A spring 111i2 is stretched between the tip of the pickup base 111 and the pickup base 1llf. Therefore, when the slide plate 111g moves as described above, the rotating arm 1111 moves upward as shown in FIG.
It is raised by the spring force of i2. As a result, the turntable 111d raises the disk D on the tray 9, which will be described later.

Guide bars 111 are provided at the front and rear upper edges of the box 111a.
3 is arranged, and a tray moving frame 111k is movably guided by this. A spring l1lks is stretched between the tray moving frame 111 and the box 111a, and constantly biases the tray moving frame 111k to the left in FIGS. 18 and 19. Further, on the front and rear lower surfaces of the tray moving frame 111, hanging pieces 111 that come into contact with a moving plate 1111, which will be described later, are formed with 2. Moving plate 11
1! is attached horizontally movably to the aforementioned slide plate 111g, and a spring 111j21 is stretched between it and the slide plate 111g to constantly bias the movable plate 1111 to the right. As described above, while the slide plate 111g moves from the solid line state to the imaginary line state in FIG. When the position of the virtual line is reached, the tip of the moving plate 1111 hangs down from the hanging piece 1 on the tray moving frame 111.
11 contacts 2. When the slide plate 111g moves from this state to the position shown in FIG. 16, the tray moving frame 111 is moved against the spring force of the spring 1llk1 and moved to the end of the box 111a. Stop (Figure 19). Note that the extra movement amount of the slide plate 111g is absorbed by the spring 111j2t. Therefore, since the outer peripheral edge of the tray 9 is no longer located within the movement range of the pickup 111e, the size of the tray 9 can be made approximately the same size as the disk D.

A tray guide 1llka similar to the tray guide 8 attached to the case 1 is attached to both left and right sides of the tray moving frame 111 described above, and the tray transfer means 10 described above is attached.
4 is formed on a protrusion 111 that is engaged with the elastic engagement piece 9f of the tray 9 when the tray 9 transferred by is inserted. Further, on the back side of the tray moving frame 111, a pair of L-shaped rotating push-out plates 111m each having a spring 111mz stretched between one end and the tray moving frame 111 is rotatably attached. , the other end is in contact with the tip of the protruding piece 9e of the tray 9, and is constantly biased by a spring in the direction of pushing out the tray 9. Further, one end of the tray moving frame 111k is inserted into the tray guide 111ka,
There is a spring 1ll between the other end and the tray moving frame 111.
An L-shaped pressing plate 111n with rz stretched thereon is attached to press the side surface of the protruding piece 9e of the tray 9 inserted into the tray guide 1llka, thereby preventing the tray 9 from shaking in the left-right direction. Therefore, the tray 9 is inserted into the tray guide 5, and the elastic retaining piece 9f of the tray 9 is inserted into the tray guide 5.
is engaged with the protrusion 111k+,
The pressing plate 111n presses the side surface of the protruding piece 9e of the tray 9 to prevent rattling in the left and right direction, and also
When the elastic engagement piece 9f and the projection 111 are disengaged by the action 4, the rotating push-out plate 111m1 acts to push out the tray 9. In addition, the rotating extrusion plate 111m
1 prevents the tray 9 from rattling in the front-rear direction when engaged.

Next, the configuration of the upper disc player 112 will be explained with reference to FIG. 20.

Similarly to the lower disc player 111, the second disc player 112 also has a clamper 113 mounted in a box 112a so as to be movable up and down via a motor 112b and a reduction gear 112c, and a pickup 112d mounted so as to be movable horizontally. There is. Therefore, the turntable 1lld in the lower disc player 111 described above is
The pickup 112d can read information on the disc D held between the disc D and the clamper 113.

By the way, if disc D is a video disc, 2
Since the disc is made of two discs pasted together, there may be a misalignment between the center hole of the lower disc and the center hole of the upper disc. For this reason, when the disc is held in the center position by the turntable 111d and clamped by the clamper 113, the turntable 1lld is not necessarily aligned with the center hole of the upper disc. If the disc D is read for the pickup 112d.
This may cause center runout, making tracking difficult. Therefore, in this embodiment, when reading the upper disk, the disk D is held between the turntable 111d and the turntable 1lld with the clamper 113 moving the lead base.

Details of this clamper 113 will be explained below with reference to FIGS. 21 to 26.

113a is a base fixed to the box 112a by appropriate means, a pipe 113b is fixed to the center, and the final gear 112c1 of the reduction gear 112c is fixed.
is pivotally supported, and an operating pin 1 of a gear 113c, which will be described later.
A switch 113as that comes into contact with 13ct is attached. 113C is a gear pivotally supported by the pipe 113b on the lower surface of the base 113a, and the final gear 1
It is meshed with 12b1. Further, on the lower surface of the outer periphery of the gear 113c at an interval of 180 degrees, the switch 1
Operation pins 113C1 are formed which alternately abut on the operation pins 13as, and a cam base 113C2 is formed on the inner peripheral side of the operation pins 113c1.

113d is a hollow shaft with a spring locking collar 113d1 formed on the upper end, and a cut groove 113d on the opposing surfaces of the lower end.
2 is formed, and a pin fitting hole 113cla is formed opposite to the cut groove 113d2 at a position shifted by 90 degrees. 113e is a cut groove 1 of the hollow shaft 113d in the upper part.
A flat plate part 113e1 is formed to be inserted into the inside of the flat plate part 113e1, and the lower part thereof is a shaft rod having a round shaft 113e2, and an elongated hole 113ea is formed in the flat plate part 113e1. And hollow shaft], 13 d is internal 6,゛,
Spring 11 with spring 113f stored
3g into the pipe 113b from above,
Further, the shaft rod 113e is inserted into the pipe 113b from below, and the flat plate portion 113e1 is fitted into the cut groove 113d2. In this state, the pin 11
3h, and at the same time insert the hollow shaft 113da and the shaft rod 1.
The long hole 113tz of the pipe 113b is penetrated through the long hole 113ea of the pin 13e, and both ends of the pin 113h are made to protrude. As a result, the end protruding from the pipe 113b comes into contact with the cam base 113C2 of the gear 113c, the hollow shaft 113d and the shaft rod 113e are connected by the pin 113h, and the shaft rod 113e is connected to the spring 113f against the hollow shaft 113d. They are spring-biased in the direction of separation.

Further, the hollow shaft 113d is biased upward by a spring 113g with respect to the pipe 113b.

Reference numeral 1131 is a support that is pivotally supported to be vertically movable with respect to the pipe 113d, and is constantly biased downward by a spring 113j. 113 is a disk pressing plate rotatably attached to the receiving plate 1131 via a bearing 113i1; 11:M! is the shaft rod 113e
113m is the mounting plate screwed to the bottom of the mounting plate 1.
Hair ring 113I against 131! , t are rotatably mounted for positioning the disk, and the outer peripheral portion 113m1 is formed in a tapered shape so as to coincide with the center hole of the disk D. In addition, a turntable 111d is provided at the center of this position regulating plate 113m.
A shaft tube 113m2 into which the fixed central shaft 111d1 is inserted projects downward.

The turntable 1lld has a built-in motor 111d2
The turntable main body 111da is rotated by the rotation of the turntable main body 111da, and a position regulating plate 111d5, which is biased upward by a spring 1lld4, is attached to the center portion of the turntable main body 111da.

The operation of holding and reproducing the disc D between the turntable 111d and the clamper 113a will now be described.

L-ray guide 1l when tray 9 is placed in tray moving frame 111
lks (FIG. 22), when a bottom surface playback command is issued for the disc D on the tray 9, the slide plate 111g moves and the pickup base 111f rises, thereby causing the turntable 111d to move. rises. When the turntable 111d is raised, the position regulating plate 111ds enters from the lower surface of the disk D and performs positioning with respect to the turntable 111d. Further, when the turntable 111d rises, the turntable main body 111da pushes the lower surface of the disk D toward the disk pressing plate 113 of the clamper 113a, so that the disk D is pushed up against the turntable main body 111.
da and the disk pressing plate 113. Therefore, in this state, the motor 11 of the turntable 111d
1 d2 rotates the disk D, so information is read as the pickup 111e moves (FIG. 23).

Next, the reproduction operation for the upper surface of the disc D will be explained. When the disc D is placed on the tray 9 (if the disc D is held between the turntable 111d and the clamper 113a, the disc D is placed on the tray 9 by the reverse operation to the above-mentioned operation). ) When the top surface regeneration command is issued, the motor 112b
is driven and the final gear 112c is driven via the reduction gear 112C.
1 is rotated. With the rotation of this final gear 112cs, the gear 113C is rotated by the operation pin 113c of the gear 113C.
Since the pin 113h is rotated until it contacts the switch 113a1, the pin 113h is lowered by the cam base 113C.

Therefore, the hollow shaft 113d and the shaft rod 113e are lowered against the spring force of the spring 113g, and the position regulating plate 11
The 1 m long shaft tube 113m2 now faces into the hole of the disk D (FIG. 24).

Next, the slide plate 111g starts to move and the turntable 111d starts to rise by the same operation as the lower surface playback operation of the disk D described above, but in the middle of the rise, the position regulating plate 113m is lowered as described above. From, the fixed central axis 111d of the turntable 111d
1 is inserted into the shaft tube 113m2, the position regulating plate 111d5 enters the hole of the disc D, and the upper surface of the turntable body 111da abuts the lower surface of the disc D (FIG. 25). Furthermore, turntable 111
When d rises, the center of the position regulating plate 111ds becomes the axis tube 113m of the position regulating plate 113m in the clamper 113.
2 and the position regulating plate 11 at the corresponding contact position.
Stop 1ds. However, the turntable body 11
1da is further pushed up, the disc D is raised by the turntaple main body 111da, and the disc D
The hole passes through the position regulating plate 111ds and the position regulating plate 11
The disk D is inserted into the 3 m outer peripheral portion 113m1, and the disk D is positioned by the position regulating plate 113m. and,
At the time when the turntable 111d has finished rising, the turntable main body 111ds is pressing and clamping the disk D toward the disk pressing plate 113k of the clamper 123, so by driving the motor 111d2 of the turntable 111d, Disk D rotates (Fig. 26).

The configuration of each part and the operation of each part are as described above, but next, the overall operation will be described.

First, when a desired program (for example, a song for karaoke) is selected using an operation section (not shown), the control section (not shown) determines which disk D the selected song is recorded on, and moves the movable base 6. The guide groove 15b of the tray transfer means 10 is brought into alignment with the tray guides 8, 8' in which the disk D is stored.

Next, the motor 61 is driven to move the rotary plate 13 to the tray guide 8 or 8' on the side where the desired disk D is stored.
Further, the motor 10a is driven to move the forward and backward moving plate 15 forward, and the release pin 100 releases the protrusion 8a of the tray guide 8 or 8' and the tray 9.
is released from the elastic retaining piece 9f, and the hook 9g of the tray 9 is engaged with the footer arm 10. Then, the motor 10a is reversely rotated to pull out the tray 9 from the tray guide 8 or 8' and into the guide groove 15b, and the motor 61 is reversely rotated to remove the rotating plate 13.
Return to the front position.

Next, move the movable base 6 to the position of the disc player 11 or 11' located above or below (if the upper player 11 is playing, move it to the lower player 11', When the player 11' is in playback, the tray is moved to the upper player 11), and the guide groove 15b of the tray transfer means 10 is aligned with the tray guide 1llka of the lower disc player III in the disc player 11 or 11'. In this state, the motor 10a is driven to move the back and forth moving plate 15 forward to transfer the tray 9 from the guide groove 15b to the tray guide 111. In the tray 9, the elastic engagement piece 9f is connected to the protrusion 111.
4, and the tray 9 is fixed to the tray guide 1llk3 by the pressing force of the pressing plate 111n.

Next, the slide plate 111g is moved by a motor (not shown).
moves to raise the turntable 111d and remove the tray 9.
After the upper disk D is lifted and clamped between the clamper 113 and positioned by the turntable 111d, the tray moving frame 111k is further moved to the right by the movement of the slide plate 111g. Therefore, since the tray 9 is retracted from within the movement range of the pickup 111e, information on the bottom surface of the disk D can be read as the pickup 111e moves.

In addition, when reading the upper surface information of the disk D, the motor 112b is driven and the position regulating plate 113m is first lowered, and then the slide plate 111g moves to clamp the disk D and position it on the clamper 113 side. After that, the pickup 112d moves and picks up the disc D.
It is possible to read the information on both sides of the page.

It should be noted that the disk D from which the information has been read is returned to the tray guides 8, 8' while being placed on the tray 9 by an operation opposite to that described above.

〔Effect of the invention〕

As described above, the present invention enables the tray transfer means to be moved up and down with respect to the guide rails provided on the inner surface of the case, and the tray transfer means is maintained in a horizontal state even when the guide rails are tilted. Since the tray transport means is moved vertically by the timing belt, even if the device is not installed horizontally and the case is installed at an angle, the tray transport means can be moved vertically in a horizontal state. Therefore, the tray transfer means can reliably pull out the tray from the tray guide and insert the pulled out tray into the disc player, resulting in reliable operation.

[Brief explanation of the drawing]

Figure 1 is an overall front view, Figure 2 is a plan view of the same as above, Figure 3 is a partially exploded perspective view of the disk transfer means, Figure 4 is a plan view of the tray, and Figure 5 is the assembled state of Figure 3. 6 is a plan view showing the moving state of the same, FIG. 7 is a plan view of other parts of the disk transport means, FIG. 8 is a partially enlarged plan view of the same, and FIGS. 9 to 11. 12 to 14 are plan views showing the state of the disk being transferred by the disk transfer means. FIG. 15 is a front view of the lower disk player. The figure is a front view showing the moving state of the same as above, FIG. 17 is a plan view of FIG. Fig. 20 is a bottom view of the upper disc player, Fig. 21 is an exploded perspective view of a part of the clamper in the above, and Figs. 22 to 26 are parts showing a state in which a disc is held between the turntable and the clamper. FIG. 1... Case, 2... Timing belt, 6a, 6
b...Guide roller, 7...Guide rail, 8,8
' Tray guide, 9 Tray, 10 Tray transport means, 11.11' Disc player.

Claims (1)

[Claims] A multi-stage tray guide for storing trays on which disks are placed, a pair of guide rails formed on both sides of the case, a pair of left and right guide rollers attached to sandwich each guide rail, and the guide rollers. A tray transport means having left and right guide rollers that elastically abut against the guide rail from orthogonal directions, and for pulling out and transporting the tray from the tray guide, and an endless winding on both sides of the case. What is claimed is: 1. A disc autochanger comprising: a timing belt which is rotated and whose intermediate portion is fixed to the tray transporting means; and a disc player which plays discs on trays selectively transported by the tray transporting means.