JPH02201771A - Automatic changer device for disk - Google Patents

Abstract

PURPOSE:To surely draw a disk from the tray guide of a tray or from a disk player by driving a pair of hook arms by means of a worm having two grooves. CONSTITUTION:A motor 10a is attached to a moving substrate 6, which vertically moves between a tray guide 8 and the disk player, a worm 10b having two screw grooves is rotated by the motor 10a, a pair of gears 10c, which clamp the worm 10b and are engaged at the mutually facing position, are arranged, and a gear 10f is rotated through a pulley part and an edgeless belt 10e formed at the respective gears 10c. Further a hook arm 10k, which draws and inserts a tray 9 by the large gear 10f, is driven. Thus the hook arm 10k synchronizes, longitudinally moves with respect to the tray 9, and the tray 9 is surely drawn.

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]

A conventional disc autochanger device of this kind has a case with a plurality of pairs of guide grooves formed therein, and a tray containing a disc is inserted into each guide groove so as to be freely drawn out.

On the other hand, a player for playing discs is disposed above or below the case, and a tray conveying means that moves back and forth between the player and the trays arranged in multiple stages pulls out the discs together with the trays and conveys them to the player. , the disc is configured to be played by the player.

When the tray is pulled out from the tray guide or player by the tray transport means, the pair of hook arms provided on the tray transport means are engaged with the engaging portions formed on the left and right sides of the tray. be.

[Problem to be solved by the invention]

By the way, in the tray transfer means described above, it is necessary to synchronously engage the pair of hook arms with the retaining portion of the tray. Conventionally, although the pair of hook arms is driven by a single motor, It has been extremely difficult to drive the hook arms in perfect synchronization. Therefore,
Since the pair of hook arms are not synchronized, there is a problem that the tray cannot be engaged with the engaging portion at the same time, and the tray cannot be pulled out reliably.

[Purpose of the invention]

The present invention aims to solve the above-mentioned problems, and its purpose is to drive the pair of hook arms by a worm having two grooves, thereby making it possible to synchronize the pair of footer arms. To provide a disc autochanger device which can securely remove a tray from a tray guide or a disc player.

[Summary of the invention]

The present invention aims to achieve the above-mentioned object, and its gist is that a motor is attached to a moving board that moves up and down between a tray guide and a disc player, and a motor is installed on a moving board that moves up and down between a tray guide and a disc player. While rotating the worm, a pair of gears are arranged to mesh with each other at opposing positions across the worm, and a large gear is rotated via a pulley portion formed on each gear and an endless belt, and The tray is equipped with a footer arm that uses the large gear to pull out and insert 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. The timing belts are wound around the timing pulleys 2b and 2b, and the timing pulleys 2b are connected by one shaft 2C, and as this shaft 2c is rotated by a motor (not shown), the pair of timing belts 2 are 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 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 faces of the movable base 60 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 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 6o 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. The disc D is transferred to either the player 11 or 11', and the tray containing the disc D that has been played back in the disc player 11 or 11' is transferred to a predetermined tray guide 8 or 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. In order to achieve the desired size, it is formed by punching ε, leaving only a plurality of crosspieces. 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. 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 retaining piece 9f to be fitted is integrally formed, and a hook 9 that engages with a hook arm 10 of a tray transfer means 1°, which will be described later, is provided on the protective portion 9d of the outer peripheral portion 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 6A and 6n' 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 1
The ring-shaped recess 12a on the back side of 2 is fitted into the ring-shaped recess 6k of the movable base 6, and the shaft portion 14a is inserted into the center hole 6m from the back of the movable base 6. The shaft portion 14a is rotatably attached to the upper surface of the movable base 6 by a screw 14b.

Reference numeral 13 denotes a rotating disc 12 having a ring-shaped recess 13a formed on its back surface.
The upper ring-shaped recess 12b is fitted into the upper ring-shaped recess 12b, and the rotary plate 13 is fixed by screws 13b inserted from the upper surface thereof. 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 61 and 642' of the movable base 6 described above are selectively guided. A guide bar 13d is formed.

Note that 12c is a retainer inserted between the ring-shaped recesses 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 rotating disk 12 with screws, and the rotating arm 6g +
Roller 6gs+6gl' provided at the tip of 6g'
a bifurcated guide groove 14c into which is selectively guided for insertion;
14c' is a notch 1 formed near the shaft portion 14a.
It is formed except for 4d. Further, a flange portion 14e is formed over approximately 180 degrees on the outer periphery of the shaft portion 14a, and three switches 31 to S3, which are turned on when abutting against the crocodile portion 14e, 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 has a motor 10a attached to the above-mentioned back and forth moving plate 15 (-J),
A worm 10b having two thread grooves rotated by the motor 10a, a pair of gears 10c meshing on both sides of the worm 10b, a pulley portion formed on each gear 10c, and two pulleys 10d. A pair of large pulleys 10f connected by a heald 10e, a rotating arm 10g integrally attached to each of the large pulleys 10f, and a long hole formed in the longitudinal direction with one end pivotally supported by the longitudinal movement plate 15. a pair of control arms 10h, each of which has the rotary arm LogO roller 10g' inserted therein;
One end rotates integrally with one of the control arms 10h on the back surface of the forward and backward moving plate 15, and the other end rotates integrally with one of the control arms 10h
The moving arm 10 engaged with the protrusion 13e formed in the
i and two guide bars 15a formed on the left and right sides of the forward and backward moving plate 15, and the control arm 10
The movable body 10j with which the tip of h is engaged, and the movable body 10j
The hook arm 10 is rotatably supported on a bin 10j' planted on the hook arm 10, the return arm 10f, the footer arm 10k, and the return arm 10I! , respectively, are spring-biased clockwise on the left side and counterclockwise on the right side.
The shaft rod 10n is spring-biased in the forward direction of the arrow j. The projection 10 formed on the upper surface of the hook arm 10 is indicated by the return arm 104.
2, and the return arm 10I! The projection 10ρ" formed on the lower surface of the shaft Ion is adapted to engage with the rear end of the shaft Ion. Therefore, the return arm 101 is configured such that the projection 10!" is in contact with the rear end of the shaft Ion. As a result, the rotational force due to the coiled spring 10m is regulated to the state shown in Fig. 7,
In addition, the footer arm 10 has a protrusion 10 that is in contact with the protrusion 1 (1!') of the return arm lOl, so that the rotational force of the coiled spring 10m is similarly regulated to the state shown in Fig. 7. In addition, a tray guide 8 is attached to the movable body 10j.
, 8' is provided to protrude forward from the shaft 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 l.
0f! 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 6gt+6g1' of the rotating arm 6g+6g' are inserted into the guide grooves 14c, 14c' of the rotating member I4 located at the center position, and the protrusions 6j2, 6ffi' formed on the movable base 6 are rotated. They are inserted into guide grooves 13c and 13c' formed on the lower surface of the plate 13. Note that at this time, the switch S2 is connected to the flange 14e.
It is turned on by

In this state, the motor 61 is energized and the gears 6f, 6
When V rotates clockwise as shown in FIG.
g remains inserted into the guide groove 14c of the rotating member 14, and the other rotating arm 16f' separates from the guide groove 16C' of the rotating member, so that the rotating member 14 Rotate clockwise by. On the other hand, the protrusion 61 remains inserted into the guide groove 13c, and the other protrusion 6ffi' is removed from the guide groove 13c'.

Therefore, the rotating plate 13 is connected to the rotating disk 12 with respect to the movable base 6.
Protrusion 61 through! , and the guide groove 13c as a fulcrum and rotated counterclockwise. And the rotating member 1
4 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 rotating plate 1
3 stops at the position shown in FIG.

Furthermore, when the motor 61 is rotated in the opposite direction to that described above, the gears 6 f and 6 f' are rotated in the opposite direction to that shown in FIG. ! , ' and the guide groove 130' as a fulcrum, the rotating plate 13 is rotated clockwise.

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 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 Log fixed thereto is rotated in the same direction as the large pulley 10f, thereby rotating the pair of control arms 10h and moving arm lO4. . 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 rotating arm of 10 g.
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 rod Ion contacts the protruding piece 9e of the tray 9 and retreats against the spring force of the spring 10n', causing the return arm 1042 to rotate against the coiled spring 10m. Once it contacts the hook 9g and rotates against the spring force of the coiled spring 10m, it is engaged with the hook 9g (FIG. 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 pulled 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 moving plate 15, but since the parent control piece 15c freely rotates in the rear direction, the return arm 1offi rotates the regulating piece 15c while rotating the regulating piece 15c. pass.

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 mokro 1 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 111ka formed in a disc player 11 or 11', which will be described later. Then, near the end of the forward movement of the moving body 10j, the return arm 10ffi
comes into contact with the regulating piece 15c, but since the regulating piece 15c cannot be rotated forward, the return arm 101 is rotated against the spring force of the winding spring 10m.

Return arm 10I! When , is rotated, the protrusion 10 of the hook arm 10 that is engaged with the protrusion 101' of the return arm 10ffi is pulled, so that the spring force of the coiled spring 10m is also applied to the hook arm 10. Return arm 1 against
It is rotated in the same direction as Offfi, and therefore the engagement between the footer arm 10 and the hook 9g of the tray 9 is released.

When the hook 9g is disengaged from the hook arm 10, the 1-lay 9 is moved to the end of the guide groove 111k8 of the disc player 11 or 11' by the shaft 10n biased by the spring 10n'. When it is pushed in and the back-and-forth moving plate 15 and the moving body 10j move to the end, the power to the motor 10a is cut off and the movement stops 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 the hook 1llk4 formed in the shaft 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 l1lf1-1.
11 fs, it is supported to be movable only vertically.

Reference numeral 111g is a slide plate that is slidably attached by rollers 1llax arranged on the front and rear surfaces of the box 111a, and the front slide plate has one guide hole 111g1 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 111tz 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 above-mentioned pickup base l1lf, and a pin 111il protruding from approximately the center of the rotating arm 1111 is connected to the slide plate 111g.
is inserted into the guide hole g1 of. A spring 111i2 is stretched between the tip of the rotating arm 1111 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 l1ld moves to the disk D on the tray 9, which will be described later.
to rise.

Guide bars 111 are provided at the front and rear upper edges of the box 111a.
j is arranged, and an l-ray moving frame 111k is movably guided thereto. 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 FIG.
In Figure 9, the spring is biased toward the left. Further, on the front and rear lower surfaces of the tray moving frame 111, a moving plate 1111, which will be described later, is provided.
! 2 is formed on the hanging piece 111 that comes into contact with . The movable plate 1112 is horizontally movably attached to the slide plate 111g described above, and the spring 1llj
! t is stretched between the slide plate 111g and the movable plate 1
11A is always biased to the right by a spring. As mentioned above, while the slide plate 111g moves from the state shown by the solid line to the state shown by the imaginary line in FIG.
f is raised and the turntable 1lld lifts up the disk D on the tray 9, and when it reaches the position of the imaginary line, the tip of the moving plate 1111 comes into contact with the hanging piece 111 of the tray moving frame 111. When the slide plate 111g moves from this state to the position shown in FIG.
It is moved against the spring force of , moves to the end of the box 111a, and stops (FIG. 19). In addition, the slide plate 111
The extra movement amount of g is absorbed by the spring 111j2t. Accordingly, since the outer peripheral edge of the tray 9 is no longer located within the movement range of the pink-up 1lle, the size of the tray 9 can be adjusted to fit the disc D.

On both left and right sides of the tray moving frame 111 described above, tray guides 1llka similar to the tray guide 8 attached to the case 1 are installed.
When the tray 9 transferred by 0 is inserted, the protrusion 111 is engaged with the elastic engagement piece 9f of the tray 9.
4 is formed in. 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 111m1 stretched between one end and the tray moving frame 111 are rotatably attached. , the other end is tray 9
is in contact with the tip of the protruding piece 9e, and is constantly biased by a spring in the direction of pushing out the tray 9. Furthermore, the tray moving frame 111k
One end is inserted into the tray guide 111ka, and a spring 1l is inserted between the other end and the tray moving frame 111.
An L-shaped pressing plate 111n with ln1 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 9 of the tray 9 is inserted into the tray guide 5.
In the state where f is positively engaged with the protrusion 111,
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 is disengaged from the seven protrusions 111 by 0, the rotating push-out plate 111m* 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.

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.
may cause core deviation, 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 112cz 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 113at 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 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 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 bottle fitting hole 113da is formed opposite to the cut groove 113d2 at a position shifted by 90 degrees. 113e is the groove 1 of the hollow shaft 113d in the second part.
A flat plate part 113et is formed to be inserted into 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. The hollow shaft 113d has a spring 1 inside.
13f is inserted from above into the pipe 113b together with the spring 113g in a stored state, and the shaft rod 1
13e is inserted into the pipe 113b from below, and the flat plate portion 113e1 is fitted into the cut groove L13d2. In this state, the pin 113h is inserted through one of the elongated holes 113b1 formed on opposing surfaces of the pipe 113b, and penetrates into the elongated hole 113b1 of the pipe 113b via the elongated hole 113ea of the hollow shaft 113da and the shaft rod 113e. Then, both ends of the bottle 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, and the hollow shaft 113d and the shaft rod 113e are connected by the pin 113h.
The shaft rod 113e is connected to the spring 11 against the hollow shaft 113d.
3f, 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, 113 is a mounting plate screwed to the lower surface of the shaft rod 113e, and 113m is the mounting plate 11.
A position regulating plate for positioning the disk is rotatably attached to the disk D via a bearing 113ffit, and the outer circumferential portion 113m* is formed into a tapered shape.
It is aligned with the center hole of. Further, at the center of this position regulating plate 113m is a fixed central shaft 111. of the turntable 111d. Axial tube 113m into which d 1 is inserted
2 protrudes downward.

The turntable 111d 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 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 111 for tray 9 to tray moving frame 111
When a lower surface playback command is given to the disc D on the tray 9 while being guided by the disc D on the tray 9, 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 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 up the lower surface of the disk D toward the disk pressing plate 113 of the clamper 113a, so that the disk D
and the disk pressing plate 113. Therefore, in this state, the motor l1ld of the turntable 111d
Since the disk D rotates by driving the pickup 111e, 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. As the final gear 112ci rotates, the gear 113C rotates, and the operating pin 113c of the gear 113c rotates.
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 111d5 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.
1 Stop ds. However, the turntable body 1
11da is.

As it is further pushed up, the disc D is raised by the turntable main body 111 da, and the hole of the disc D passes through the position regulating plate 111 ds and is inserted into the outer circumference 113 mt of the position regulating plate 113 m. Positioning is performed by When the turntable 111d has finished rising, the turntable main body 111da is pressing and clamping the disk D toward the disk pressing plate 113k of the clamper 113, so that the motor 111 of the turntable 111d
By driving d2, the disk D is rotated (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 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 playing, it moves 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 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.
4, 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 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.
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, in the present invention, a pair of gears are meshed with a worm having two grooves so that the gears rotate synchronously, and the footer arm that pulls out and inserts the tray is driven via the gear. As a result, the footer arm moves back and forth with respect to the door array in synchronization, so that the footer arm is simultaneously engaged with the engaging portion of the tray, and the tray can be pulled out reliably. It is something that you have.

[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, 8, 8'... Tray guide, 9...
- Tray, 10... Tray transfer means, 10a... Motor, 10b... Worm, 10C... Gear, 10
e...Belt, 10h...Control arm, 10k...
・Hook arm. Patent applicant Pioneer Corporation

Claims (1)

[Claims] A moving board that moves up and down between the tray guide and the disk player in a tray transfer means that pulls out a tray from a tray guide installed in a case and transfers it to a disk player, and pulls out a tray from a disk player and transfers it to the tray guide. a motor mounted on the moving board; a worm having two thread grooves rotated by the motor; a pair of gears meshing at opposing positions with the worm in between; A pair of large gears connected via a pulley portion formed on the gear and an endless belt, a control arm that rotates as the large gear rotates, and a control arm that moves back and forth as the control arm rotates. A disc autochanger device, comprising a hook arm for pulling out and inserting a tray.