JPH02201766A - Disk tray for automatic changer - Google Patents

Abstract

PURPOSE:To simplify a structure and to surely fix a tray by forming an elastic engaging piece on a tray, engaging it to a projection formed on a tray guide, and engagedly fixing the tray to the tray guide. CONSTITUTION:Projecting pieces 9e to be inserted to the tray guides are formed at mutual facing parts in an external peripheral part 9b of a tray 9, an elastic engaging piece 9f to be engaged with the projection formed on the tray guide is integrally formed, and a hook 9g to be engaged with the hook arm of a tray shifting means is formed on a protective part 9d of the external peripheral part 9b. Further the engagement between the projection of the tray guide and the elastic engaging piece 9f is canceled by the canceling pin of the tray shifting means, the hook arm is engaged with the hook 9g of the tray 9, and the tray 9 is drawn out from the tray guide. Thus the tray 9 can be surely fixed to the tray guide in the simple structure.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a disc autochanger that stores a large number of discs such as video discs and compact discs in a case, and selects and plays a desired disc by external operation. The present invention relates to a disc tray for transporting a disc mounted thereon from a case to a disc player or from a disc player to a case in an apparatus.

[Conventional technology]

Conventionally, in this type of disc autochanger device, the tray on which the disc is placed is locked between the case and the tray guide of the disc player to prevent the tray from moving accidentally. It is configured.

That is, a separate hook is formed on the tray guide side, and a claw that is engaged with the hook is formed on the tray side.
The I-ray was fixed to the tray guide by engaging the hook and the pawl. When the tray transfer means pulls out the tray from the tray guide, the hook is operated by a drive source such as a plunger provided on the tray transfer means to release the tray from the claw.

[Problem to be solved by the invention]

By the way, with the means for fixing the tray to the case or the tray guide of the disc player, it is necessary to provide a separate hook for each tray guide, which is driven by the plunger of the tray transfer means. There are problems in that the structure of the guide becomes complicated, there is a risk of failure, and the cost increases.

[Purpose of the invention]

The present invention aims to solve the above-mentioned problems, and its purpose is to lock the tray to the tray guide by forming an elastic retaining piece on the tray and engaging with a protrusion formed on the tray guide. To provide a disk tray for an autochanger which has a very simple tray guide structure because of the fixed structure, provides reliable operation, is less likely to break down, and can be manufactured at low cost.

[Summary of the invention]

The present invention aims to achieve the above-mentioned object, and its gist is to provide a pair of elastic retainers that are engaged with protrusions formed on the case and the tray guide of a disc player, and are latched to the tray guide. Along with forming a joint,
engaged with a hook arm formed on the tray transfer means;
A hook for pulling out the tray from the tray guide is formed on the tray.

[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 to which a door 1a that can be opened forward is attached, 2 is a timing pulley 2a attached to two places on the left and right of the top plate part 1b of the case 1, and a timing pulley 2a is attached to two places on the left and right of the bottom plate part IC. A timing heald is wound between the timing pulley 2b and the timing heald, and the timing pulley 2b is connected by one shaft 2c, and this shaft 2c is rotated by a motor (not shown), so that the pair of timing belts 2 Moved synchronously.

Reference numeral 3 denotes an endless wire wound between pulleys 3a attached to two places on the left and right sides of the top plate part 1b and bottom plate part 1c of the case 1, and a movable base 6, which will be described later, is attached to one of each wire 3. A weight 4 is fixed to maintain balance. 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 biased by a spring 6c, and the 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 heald 2.

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

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 according to 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 it to a disk player disposed above and below the case, which will be described in detail later. 11, LL', and a disk player 11.11'
The tray 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, for example, a 30CT11 disk D is placed, and is made of a steel plate in order to obtain rigidity, and is lightweight. It is formed by punching, leaving several crosspieces in order to achieve a uniform appearance. Also,
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 coming into direct contact with the m plate and causing damage. Note that an upright 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 which is rotated by a motor 1 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 6ρ, 61' are formed so as to sandwich the ring-shaped recess 6k.

Reference numeral 12 denotes a rotating disk formed by integrating two disks in a shifted state, and a ring-shaped recess 6 of the above-mentioned movable base 6 is formed on the front side of each disk, and a rotary disk 13 is formed on the back side of a rotating plate 13 described later. Ring-shaped recess 12a fitted into 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.

13 is a rotating plate with a ring-shaped recess 13a formed on the back surface, and the ring-shaped recess 12b on the upper surface of the rotating disk 12 is fitted into the ring-shaped recess 3a, and
It is fixed by screws 13b inserted from two sides of the rotating plate 13. The projections 6ff, 6f of the movable base 6 described above are provided on both left and right sides of the back surface of the rotary plate 13.
guide grooves 13c, 1 in which fi' is selectively guided for insertion;
3c' is formed, and a pair of parallel guide bars 13d are formed on the upper surface.

Note that 12c is a retainer inserted between the ring-shaped recesses 12a and 16 and between the four ring-shaped parts 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 in the vicinity of the shaft portion 14a. Further, a flange 14e is formed over approximately 180 degrees on the outer circumference of the shaft 14a, and three switches 81 to S are turned on when the flange 14e comes into contact with the flange 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 a rotating arm Lo each integrally attached to the large pulley 10f.
g, and the roller 10 of the rotating arm 10g 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 10i rotates integrally with one side of the movable arm 10i and has the other end engaged with a protrusion 13e formed on the rotary plate 13, and two movable arms 10i 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 10k, the return arm 10I2. A coiled spring 10m biases clockwise on the left side and counterclockwise on the right side, and a spring 10n' is slidably supported on the movable body 10j and springs in the forward direction of the movable body 10j. It is composed of an energized shaft rod 10n. The protrusion 10' formed on the upper surface of the above-mentioned hood arm 10 is adapted to engage with the protrusion 10ρ' formed on the lower surface of the return arm 10f, and the return arm 10I! Protrusion 10 formed on the lower surface of ! " is adapted to engage with the rear end of the aforementioned shaft rod Ion. Therefore, the return arm 10I!,
0' is in contact with the rear end of the shaft rod Ion, so that the rotational force by the winding spring 10m is regulated to the state shown in FIG.
0! The winding spring 1 is in contact with the protruding piece 101' of
The rotational force at 0 m is also regulated to the state shown in FIG. 7. Further, the moving body 10j includes tray guides 8, 8.
' The elastic retaining piece 9 of the tray 9 is engaged with the protrusion 8a.
A release pin 100 that contacts f to release the engagement is provided to protrude forward from the shaft Ion.

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 10! 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 and 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 6g1+6gt' of the rotating arms 6g and 6g' are inserted into the guide grooves 14c and 14c' of the rotating member 14 located at the center position,
Moreover, the protrusions 6fi, 6I formed on the movable base 6! ,'
are guide grooves 13c and 13 formed on the lower surface of the rotating plate 13.
It is inserted in c'. 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' rotate 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' Since it is removed from the guide groove 160', the rotating member 14 is rotated clockwise by the rotating arm 6g.

On the other hand, protrusion 6I! .

remains inserted into the guide groove 13c, and the other protrusion 6ρ' 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. Then, when the rotating member 14 is rotated approximately 90 degrees and the switch S2 is turned on by the collar portion 14e, the power to the mokuro 1 is cut off and the rotation of the rotating plate 13 is stopped at the position shown in FIG.

Further, when the motor 61 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. The rotating plate 13 is rotated clockwise using the engaging portion between the guide groove 13C' and the guide groove 13C' as a fulcrum.

When the rotary plate I3 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 mentioned above, the switch S3 is turned on and the rotating plate 13 is turned on.
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 of the large pulleys 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 arms 10h and the movable arm 101. Here, when the movable arm 101 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 100 comes into contact with the elastic engagement piece 9f of the tray 9 to release the engagement with the protrusion 8a of the one-way guide 8 or 8'. The shaft Ion contacts the protrusion 9e of the tray 9 and moves backward against the spring force of the spring 10n', returning the arm 10! is rotated against the coil spring 10m, and the hook arm 10 once contacts the hook 9g of the tray 9, rotates against the spring force of the coil spring 10m, and then is engaged 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 15b 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 102 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 movement Fi15 moves forward, and the movable body 10j also moves forward. As the moving body 10j moves forward, the tray 9 moves from the guide groove 15b to the guide groove 111ka formed in the disc player 11 or 11', which will be described later.
The tray 9 moves forward without being inserted into the tray. Then, near the end of the forward movement of the moving body 10j, the return arm 1042
comes into contact with the regulating piece 15c, but at this point, the regulating piece 15c cannot rotate forward, so the return arm 10! is rotated against the spring force of a 10m coiled spring.

When the return arm 101 is rotated, the return arm 10p
, is pulled by the protrusion 10 of the hook arm 10 that is engaged with the protrusion 10f' of the hook arm 10, so that the hook arm 10 is also returned to the arm 10J2., against the spring force of the coiled spring 10m. Therefore, the engagement between the hook arm 10 and the hook 9g of the tray 9 is released. When the hook 9g is disengaged from the hook arm 10, the tray 9 is pushed to the end of the guide groove 111ka of the disc player 11 or 11' by the shaft rod]On which is biased by the spring 10n'. At the same time, when the back and forth moving plate 15 and the moving body 10j move to the end,
In the same way as described above, the power supply to the motor 10a is cut off and the movement is stopped (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 the hook 111k4 formed in the shaft 11ka, the shaft rod 10n continues to push the tray 9 by the spring force of the spring 100'. Therefore, the tray 9 is inserted into 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 and 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, disc player] 1, 11
' have the same configuration, so 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, the disc players 112 on the upper side are spaced apart from each other by a desired distance, and the disc players 112 on the upper side are spaced apart from each other in some cases.

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. 111f is a known turntable 111d that clamps the disk D between a clamper to be described later, and a pickup 111e 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 111f1 that contacts the support shaft 111b at one end, and a spring 111fs.
A movable roller 111f2 that comes into elastic contact with the support shaft 111c is attached to the other end, and two fixed rollers 111fs and 111f4 that come into contact with the support shaft 111c, and a spring 111fe that comes into elastic contact with the other end. A movable roller 1llfa is attached. Therefore, the pickup base 111f has the above-mentioned rollers 1llfz~1.
11 fs, it is supported to be movable only vertically.

111g is a slide plate that is slidably attached by rollers 1lla1 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 substantially rectangular shape. Further, two guide holes (not shown) similar to those described above are formed in the rear slide plate. Furthermore, a rank 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 1.11g2. Therefore, when the motor rotates and the gear 111hx rotates,
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 bottle 1lli1 protruding from approximately the center thereof is inserted into the 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 111f. 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.
j is arranged, and a tray moving frame 111k is movably guided by this. A spring 111 is stretched between the tray moving frame 111 and the box 111a, and the tray moving frame 111k is constantly moved as shown in FIGS. 18 and 19.
In the figure, the spring is biased toward the left. 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 board 1
11i is attached to the slide plate 111g described above so as to be horizontally movable, and a subring 111Et is stretched between the slide plate 111g and the movable plate 111! is constantly biased 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 k2. 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 11Lffii. 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 adjusted to fit the disc D.

Tray guides 111 kg similar to the tray guide 8 attached to the case 1 are attached to the left and right sides of the tray moving frame 111 described above, and the tray transfer means 10 described above
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 both sides of the rear of the tray moving frame 111, a pair of letter-shaped rotating extrusion plates 111m each having a spring 111m1 stretched between the tray moving frame 111 at one end are rotatably attached. , the other end is in contact with the tips of the projecting pieces 9e of the trays 1 to 9, and is constantly biased by a spring in the direction of pushing out the tray 9. Furthermore, the tray moving frame 111
One end of k is inserted into the tray guide 111ka, and a spring 1 is inserted between the other end and the tray moving frame 111.
An L-shaped pressing plate 111n with llrz stretched thereon is attached and presses the side surface of the protruding piece 9e in the tray 9 inserted into the 1-lay guide 111k3, thereby preventing the 1-lay 9 from shaking in the left-right direction. It is prevented. Therefore, L. Ray 9
is inserted into the tray guide 5 and the elastic retaining piece 9f of the tray 9 is engaged with the protrusion 111, the pressing plate 111n presses the side surface of the protruding piece 9e of the tray 9. In addition, the tray transfer means 10 allows the elastic retaining piece 9f and the protrusion 111 to be
When the tray 9 is disengaged from the tray 9, the rotating push-out plate 111m1 functions to push out the tray 9. Note that the rotating push-out plate 111m1 prevents the tray 90 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.

The upper disc player 112 is also the lower disc player 1.
Similarly to 11, a clamper 113 is mounted in a box 112a so as to be vertically movable via a motor 112b and a reduction gear 112C, and a pickup 112d is mounted so as to be horizontally movable. Therefore, information on the disc D held between the turntable 111d and the clamper 113 in the lower disc player 111 can be read by the pickup 112d.

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. Therefore, when the disk is centered by the turntable 111d and clamped by the clamper 113, the turntable 111d is not necessarily aligned with the center hole of the upper disk, and therefore, in this state, information is read by the upper pickup 112d. In this case, the disk D is attached to 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 center of the disk D is aligned by the clamper 113.

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 to the base 113a.
is pivotally supported, and an operating pin 1 of a gear 113c, which will be described later.
A switch 113a1 that comes into contact with 13c1 is attached. 113C is a gear pivotally supported by the pipe 113b on the lower surface of the base 1]3a, 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 that alternately abut on the operation pins 13a1, 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 113da is formed opposite to the cut groove 113d2 at a position shifted by 90 degrees. 113e is a cut groove 11 of the hollow shaft 113d in the upper part.
A flat plate part 113e1 to be inserted into 3d2 is formed, and a shaft rod whose lower part is formed into a round shaft 113e2,
A long hole 113ea is formed in the flat plate portion 113et. The hollow shaft 113d has a spring 11 inside.
3f is inserted into the pipe 113b from above together with the spring 113g in a stored state, and the shaft rod 11
3e is inserted into the pipe 113b from below, and
The flat plate portion 113et is fitted into the cut groove 113d2. In this state, the pin 113h is inserted through one of the elongated holes 113bs formed on opposing surfaces of the pipe 113b, and the elongated hole 1 of the hollow shaft 113da and the shaft rod 113e is inserted.
The long hole 113bs of the pipe 113b is penetrated through the long hole 113bs of the pipe 113b, and both ends of the pin 113h are made to protrude. This results in
The end protruding from the pipe 113b contacts the cam base 113c2 of the gear 113c, the hollow shaft 113d and the shaft rod 113e are connected by a pin 113h, and the shaft rod 113e is connected to the spring 113 with respect to the hollow shaft 113d.
They are spring biased in the direction of separation by f.

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

Reference numeral 1131 is a support that is pivotally supported to be vertically movable with respect to the pipe 113d, and is constantly urged downward by a spring 113j. 113 is a disk pressing plate rotatably attached to the receiving plate 1131 via a bearing 113i1, 113 is a mounting plate screwed to the lower surface of the shaft rod 113e, and 113m is the mounting plate 11.
31 via a bearing 1131t so as to be rotatably attached to the position regulating plate for positioning the disk,
The outer peripheral portion 113Tn1 is formed in a tapered shape and is aligned with the center hole of the disk D. Furthermore, a shaft tube 113m2 into which a fixed central shaft 111d1 of the turntable 111d is inserted projects downward from the center of the position regulating plate 113m.

The turntable 111d has a built-in motor 111d2.
The turntable main body 111da is rotated by this, and a position regulating plate 111d5, which is urged upward by a spring 111d4, is attached to the center 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.

Tray guide 1ll for tray 9 to tray moving frame 111
ka (FIG. 22), when a command to play the bottom surface of the disc D on the tray 9 is issued, the slide plate 111g moves and the pickup base 111f rises, causing the turntable 111d to move. rises. When the turntable 111d is raised, the position regulating plate 111d5 enters from the lower surface of the disk D and performs positioning with respect to the turntable 111d. Furthermore, when the turntable 111d rises, the turntable body 111d pushes the lower surface of the disk D toward the disk pressing plate 113 of the clamper 113a, so that the disk D
a and the disk pressing plate 113. Therefore, in this state, the motor 1ll of the turntable 111d
Since the disk D is rotated by driving d2, 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. In the state where the disk D is placed on the 1.l/a 9 (if the disk D is held between the turntable 111d and the clamper 113a,
The disk D is returned onto the tray 9 by an operation opposite to that described above. ) When the top surface regeneration command is issued, the motor 11
2b is driven to the final gear 11 via the reduction gear 112c.
2c1 is rotated. As the final gear 112ct rotates, the gear 113c rotates the operating pin 11 of the gear 113c.
Since the pin 3c1 is rotated until it contacts the switch 113az, 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, so that the shaft tube 113m2 of the position regulating plate 111m 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 main body 111da comes into contact with the lower surface of the disc D (FIG. 25). Furthermore, turntable 11
1d rises, the center part of the position regulating plate 111d5 becomes the axis tube 113 of the position regulating plate 113m in the clamper 113.
Contact the bottom surface of m2 and position regulating plate 1 at the corresponding contact position.
Stop 11ds. However, the turntable body 1
11ds is further pushed up, so the disc D is raised by the turntable body 111ds, 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 circumferential portion 113mt, 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 111da is moved to the clamper 113.
Since the disk D is pressed and held against the disk pressing plate 113k, the disk D is rotated by driving the motor 111d2 of the turntable 111d (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/backward moving plate 15 forward, and the release pin 10o releases the protrusion 8a of the tray guide 8 or 8' and the tray 9.
is disengaged from the elastic engagement piece 9f, and the hook arm 10 is engaged with the hook 9g of the tray 9. Then, the motor 10a is rotated in the reverse direction to pull out the tray 9 from the tray guide 8 or 8' and into the guide groove 15b, and the motor 10a is rotated in the reverse direction to remove the tray 9 from the tray guide 8 or 8'.
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 l1lka of the lower disc player 111 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.
kg, and the tray 9 is fixed to the tray guide 111 kg 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, lift the disk D on the lay 9 to 1, clamp the disk D between it and the clamper 113, position it with the turntable 111d, and then move the slide plate 111g. The tray moving frame 111k moves to the right. Therefore, the tray 9 is removed from within the movement range of the pickup 111e.
Since the pickup 111e is retracted, 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.
The information on the top of the screen can be read.

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 has elastic retaining pieces that are engaged with the protrusions formed on the case and the tray guide of the disc player on both sides of the tray, thereby fixing the tray to the tray guide. Compared to the fixing means described above, it can be fixed reliably with a simpler structure and less likely to break down, and can be produced at a lower cost.Moreover, if the tray guide of the disc player is provided with a rotary extrusion plate to prevent rattling, The elastic retaining piece also serves as a stopper, and therefore has the effect of more securely fixing the tray to the tray guide.

[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. DESCRIPTION OF SYMBOLS 1... Case, 9... Tray, 9f... Elastic retaining piece, 9g... Hook, 11... Disc player,
111 to 3...tray guide, 111 k4...
Projection, 10...Tray transfer means, 10k...Ara firm.

Claims (1)

[Claims] In an autochanger device in which a disc is played by being pulled out from tray guides installed in multiple stages in a case and transferred to a disc player by a tray transfer means, the disc is engaged with protrusions formed on the tray guide of the case and the disc player. , a pair of elastic engagement pieces are formed for locking on the tray guide, and a hook is formed for engaging with a hook arm formed on the tray transfer means and pulling out from the tray guide. Features a disc tray for autochangers.