JPS6361455A - Autochanger device for disk player - Google Patents

Abstract

PURPOSE:To surely attain the mesh of a gear with a rack, and to stably exchange a disk, by meshing a pinion gear in a sliding mechanism, with the rack provided in a tray from a vertical direction. CONSTITUTION:Plural pieces of trays 1 in which CDs 2 are accommodated, are contained in a container part 18, and the rack 13 is formed at the right side of the tray 1 and the gear 31 of the sliding mechanism 3 is meshed with the rack. And a cam part 66 is provided at the side of a sliding hole 64 from which the rack 13 can be observed. Prior to the pulling in of the tray 1, the sliding mechanism 3 is moved upward and downward by an elevating mechanism 9, but at this time, the projection 62 of a turning member 33 on which the gear 31 is mounted, is moved upward and downward by being guided by the recessed and the projecting parts of the above stated cam 66. Thereby, the gear 31 is meshed with the rack 13 from the vertical direction, and the mesh of them is performed steadily, and the exchanging operation of the disk can be performed stably and accurately.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an autochanger device for a disc player that automatically changes the disc to be played, and particularly to an autochanger device suitable for use in a compact disc player.

(B) Prior Art Conventionally, an autochanger device for a disc player that automatically changes the disc to be played is known.

The autochanger device is convenient because it allows desired songs to be played continuously without manually changing the disc, and continuous playback for a long time is possible.

Incidentally, a CD player is known that uses an optical pickup to optically read a compact disc (CD) having protrusions called pits corresponding to digital signals formed on the signal surface. The CD is easy to handle and has a diameter of 1
2CITl is smaller than conventional analog discs (record discs), so CD players are suitable for selectively ejecting discs to change the disc to be played, and for autochangers that store multiple discs. .

An example of an auto-change device for a CD player is disclosed in Japanese Patent Laid-Open No. 60-52950. The autochanger device of the above-mentioned publication stores and holds a disc in a disc storage case, inserts the disc storage case into the disc storage part, and uses a drawer mechanism that is slidably supported by a transport mechanism that is supported so as to be movable up and down. after pulling out the disc storage case from the disc storage part,
A force is applied to the player unit that lowers the transport mechanism and plays the disc. That is, since the autochanger device exchanges the disc to be played by transporting the disc storage case in which the disc is stored, the disc to be played can be replaced without the mechanism for transporting the disc coming into direct contact with the disc. I can do it. Therefore, there is no risk of damaging the disc when replacing the disc to be played.

(c) Problems that the invention is trying to resolve By the way, conventional autochanger devices were mainly for commercial use, but recently, autochanger devices that can be enjoyed at home with only a few discs stored have been released. I started. The autochanger device is disclosed in, for example, Japanese Patent Application Laid-Open No. 59-36.
As shown in Publication No. 365, the above-mentioned Japanese Patent Application Laid-Open No. 60-52
Similar to the autochanger device shown in No. 950,
It is a so-called cartridge method, in which a tray containing discs is installed in the disc storage part in advance and the disc storage part is manually set in a predetermined position, but it has a luxurious feel and ease of operation when inserting and removing discs. Therefore, a front-loading type autochanger device is also desired, in which the tray is slid to the front of the disc storage section by operating the opening/closing button on the current stationary CD player, and a disc is inserted into and removed from the tray. was.

The present invention aims to provide an autochanger device for a disc player, which is made in view of the above points.

(d) Means for Solving the Problems The present invention provides a tray on which a disk is placed and a rack formed on the side surface, and a plurality of trays stacked vertically with the rack visible. A storage section in which the tray is stored and a pinion gear that engages with the rack of the tray are pivotally supported, and a moving member that supports the pinion gear so as to be movable in a horizontal direction and is formed with a guide section, and the tray is A sliding mechanism that selectively slides horizontally from the storage section to above the turntable and a guide section of the moving member are brought into contact with each other and are provided on a side surface of the storage section depending on the storage position of the tray. The cam part includes a concave part and a convex part, and an elevating mechanism for elevating and lowering the sliding mechanism.

(*) Function The present invention selectively slides the trays stored in the storage section above the turntable using the sliding mechanism, and when the sliding mechanism is raised and lowered in order to select the tray to be slid. The pinion gear of the sliding mechanism is engaged with the rack surface of the tray in the vertical direction by the cam part and the guide part of the moving member.

(F) Embodiment FIGS. 1 to 5 show an embodiment of the present invention, and show a plan view, a front view, a right side view, a left side view, and a sectional view from the right side, respectively. 1) is a recess (1a) on which a compact disc (CD) (2) is placed.
and a tray with a notch (1b) formed in the part to be traced by an optical pickup in order to read out the signals recorded on the CD (2); The mechanism includes guide grooves (5a) and (6a) to which the right and left sides of the tray (1) are respectively engaged, and guide members (5) and (6) that support the tray (1). ) and the guide members (5) and (6)
The CD<2> is fixed on the turntable (
7) A support consisting of a clamp plate (8) to be clamped on top, (2) a lifting mechanism for raising and lowering the support plate, and (赳) a turntable (7) for rotating the CD (2) and a CD ( 2) is a player section equipped with an optical pickup (11) for reading signals recorded on the player. and,
The sliding mechanism (base) is fixed to the support (4). Further, the elevating mechanism (2) and the player section (function) are attached to a base (12).

By the way, the tray (1) has a rack (13) formed on its right side, and first to third grooves (14) to (16) formed on its left side.
A projection (17) is formed on the right side of the rear surface, and the L-ray (1) is stored in a storage section (18) provided in front of the base (12). The base (12
), as shown in Figure 2, there are support pieces (18a) on the right and left sides that support the tray (1), respectively.
and (18b) are formed, and a plurality of trays (1) are housed in a state in which they are slidably stacked at intervals. And the top plate (19) of the storage section (tsubo)
is provided with a protrusion (19a) at the same position as the protrusion (17) of the tray (1), and when the tray (1) is stored in the storage section (line), the The protrusion (17) of the tray (1) and the protrusion (19a) of the top plate (19) are aligned vertically on the same straight line.

The sliding mechanism (multiple) includes a motor 20) serving as a drive source, a first pulley (21) fixed to a rotating shaft <20a) of the motor (20), and a rotation of the first pulley (21>). A second pulley (23) transmitted via a belt (22)
, a first gear (24) integrally molded on the lower surface of the second pulley (23), and a second gear (24) that meshes with the first gear (24).
A gear (25), a third gear (26) integrally molded on the upper surface of the second gear (25), meshing with the third gear (26) and meshing with the rack (13) of the tray (1). A fourth gear (27) serving as a pinion gear for
7> A third pulley (28) provided on the upper surface, a fourth pulley (30) to which the rotation of the third pulley (28) is transmitted via a belt (29), and a fourth pulley (30) provided on the upper surface of the third pulley (28).
a fifth gear (
31) and the fifth gear (31) are attached and biased in the direction of arrow A by a spring (32), and the shaft (3
The first rotating member (33
) and spring 35) in the opposite direction of arrow A,
It consists of a second rotating member (36) that is rotatable about a shaft (36a), and the fifth gear (31) is controlled by a pin (37) provided on the second rotating member (36). The belt tensioning mechanism is designed to keep the tension of the belt (29) constant between the third and fourth pulleys (28) and (30) regardless of the movement of the belt. It is attached to a base plate (39) that is movable up and down relative to the stand (12).

The support body (4) houses a photocoupler (middle) for disc detection, which consists of a light emitting diode (40a) attached to the clamp plate (8>) and a photodiode (40b) attached to the guide member (6). Detection of the position of a tray in which a light emitting diode (41a) and a photodiode (41b) are opposed to each other via a protrusion (17) of a tray (1) housed in a tray (1) or a protrusion (19a) of a top plate (19). A photocoupler (4X) for use is provided and a photocoupler (4X) for
A chucking member (42>) is provided to chuck D (2) onto the turntable (7).
One end of the supporting body and the top plate (19) of the storage section (transfer) are slidably fitted together, and the other end is pivotally supported.
), and when the support (18) is located below, the tray (1) stored above the support (18) is pushed by an external hammer into the storage section (18). Also, make sure that the CD (2) in tray 1) does not fall out.
to prevent it from falling off.

In addition, at this time, the tray (1) stored below the support body (the support body) guide member (5) and (
The tongue pieces (5b) and (6b) of 6) prevent it from falling off.

The lifting mechanism (2) includes a motor (44) serving as a driving source, a fifth pulley (45) fixed to a rotating shaft (44a) of the motor (44), and a rotation of the fifth pulley (45). Sixth booley (47) transmitted via belt (46)
a worm gear (48) formed on the lower surface of the sixth booley (47), a sixth gear (49) that meshes with the ohm gear (48), and a shaft to which the sixth gear (49) is fixed. (50), and the rotation of the sixth gear (49) is transmitted through the shaft (50), and seventh and eighth gears ( 51) and (52), and a gear part (53a) that meshes with the seventh gear (51), and is connected to a tongue piece (5b) integrally molded on the guide member (5) of the support body. a first rotating body (53), a second rotating body (54) having a gear portion (54a) that meshes with the eighth gear (52), and the second rotating body (54) and a guide member (6). The positional relationship between the connecting member (55) connecting the tongue piece (6b) integrally molded with the second rotating body (54) and the connecting member (55) is adjusted, and the guide member (6) is An adjustment screw (56) that matches the height with the height of the other guide member (5), and first and second screws that are fully supported by the base (12) and connected at the center and intersecting in an 2 arms (57) and (58
), and the support body (supports the phantom so that it can rise and fall.The first arm (57) has one end connected to the base (1
2), the other end is an arc-shaped first groove (5) centered on the one end.
9) the second arm (58) is slidably pivoted therein;
has one end slidably in the vertical direction and the other end slidably in a second groove (60) formed in the horizontal direction, and the first and second arms (57) and (58) A spring (61〉) is hung between them, and the sliding mechanism (the base plate (39) on which the forging is attached is urged upward, so that the sliding mechanism) is smoothly raised and lowered along with the support body. It is designed so that
The first groove (59) is formed in a metal plate (63) loosely fitted to the base (12), and the second groove (60) is integrally formed with the base (12).

By the way, as shown in Fig. 3, the base (12) has a sliding mechanism (forged fourth or fifth gear (27) or (31)
The fourth and fifth gears (27) on the sides of the storage section (transfer) are engaged with the rack (13) formed on the tray 1).
) and (31), respectively, are provided with sliding holes (64).
) and (65) are drilled. In particular, the sliding hole (64
) is provided with holes equal to the number of trays 1 that can be stored in the storage section, and each of the sliding holes (64) allows trays to be stored in the storage section. A rack (13) formed on the tray (1) is visible. Further, a cam portion (66) consisting of a concave portion and a convex portion is formed next to the sliding hole (64), and the concave portion is located at the position of each hole of the sliding hole (64). That is, it is formed corresponding to the storage position of the tray. The cam portion (66) is provided with a protrusion (6) of the first rotating member member 33).
2) are in full contact with each other, and the first rotating member (33) is urged in the direction of arrow A by the spring 32>. For that reason,
Since the protrusion (62) remains in contact with the cam part (66), it becomes a guide part for the first rotating member (33) and moves along the concave and convex parts of the cam part (sub). do. Therefore, when the sliding mechanism (base) rises or falls, the first rotating member (33) rotates in accordance with the concave and convex portions of the cam part (66), and as a result, the first rotation The fifth gear (31) pivotally supported by the moving member (33) rotates each tray (1) stored in the storage section (1).
) so as to mesh with the surface of the rack 13) in a vertical direction so that the fifth gear (31) does not interfere with the elevation of the sliding mechanism (nose). 31)
and the rack (13) of the tray (1) are ensured to mesh with each other.

The base (12) also includes a support (4) and a sliding mechanism (
Guide holes (67) to 7 that serve as guides when ascending and descending
2) are drilled, and in particular, the guide holes (67) to (69) drilled on the right side of the base (12) connect the board (39) on which the sliding mechanism ()) is attached. It is also used for connecting and fixing to the support hollow.

Furthermore, as shown in FIG.
and second flaps (73) and (74) and tray (1)
It is equipped with a locking mechanism (mutual) for locking. The first flap (73) is pivotally supported by bearings (76a) and (76b) formed on the base (12), and is supported by a spring (73).
7), the tongue piece (73a) provided on the first flap (73) acts as a first switch (78) for position detection. The movable contact piece (78a) is in contact with the movable contact piece (78a). The first flap (73) has a protrusion (73b) corresponding to each of the plurality of trays (1) stored in the storage section (tsubo).
is fully formed, and the protrusion (73b) faces the protrusion (73b) of the base (12) as shown in FIG. 2 when the tray (1) is fully stored in the handle storage section. The first groove (14) of the tray (1) passes through a hole drilled in the
) has been incorporated. The second flap (74) also has bearings (79a) and (79b) formed on the base (12).
The second flap (74) is supported by a spring (80) and is biased so as to come into contact with the left side surface of the base (12), and the tongue piece (74a) provided on the second flap (74) is used for position detection. The second flap (74) is in contact with the movable contact piece (81a) of the second switch (81). A protrusion (74b) is completely formed corresponding to each sheet, and when the protrusion (74b) and the hatchet (1) are fully stored in the storage section (transfer), the protrusion (74b) of the base (12) The second groove (15) of the tray (1) is completely inserted through a hole (not shown) formed in a portion facing the tray (1).
The locking mechanism (75) has a plurality of arms (8) corresponding to each of the plurality of trays (1) stored in the storage section (mail).
2), and the plurality of arms (82) have ends pivotally supported by pins (84) which are respectively pivotally supported by bearings (83a) and (83b), and each of the plurality of arms (82) is supported by a leaf spring (85).
) is urged to come into contact with the left side surface of the base (12). A protrusion (82a) is formed on each of the arms (82), and the protrusion (82a) is attached to the base (12) when the tray (1) is stored in the storage section (tsubo). The third groove (1) of the tray (1) passes through a hole (86) formed in a portion opposite to the protrusion (82a).
6), and the arm (82> receives the biasing force of the leaf spring (85) by being brought into contact with the protrusion (87) formed on the guide member (6) of the support (4). The protrusion (82a) of the arm (82) is rotated against the third
The third groove (16) of the tray (1) corresponds to the height of the support (4) because it is adapted to be removed from the groove (16).
The protrusion (82a) of the arm 82> that was fitted into the third groove 16 is removed from the third groove 16). Here, the support (4
The height of the tray (1) matches the height of the guide groove () because the unfitting protrusion (87) is provided on the back surface of the guide member (6) where the guide groove (6a) is formed. 6
This refers to the tray 1) that matches the height of a). still,
The leaf spring 85) is constructed by forming a slit in a thin metal plate according to the arrangement of the arm (82) and bending it, and both ends of the metal plate form bearings (83a) and (83b). ing.

Next, the operation of the auto gamer device constructed as described above will be explained.

1! When the source is put in, the first and second switches (7
The switching state between 8) and (81) and the switch (88) fixed at the end of the support body (phantom) is controlled by a control circuit (not shown).
The position of the tray (1) is detected by the detection means of the tray (1). When it is confirmed by the above detection that all of the plurality of trays (1) are stored in the storage section (tsubo), next the sliding mechanism (the switch (39) fixed to the board (39) to which the sliding mechanism is attached) The switching state of the switch (89) is detected by the detection means.If the switch (89) is not turned on, the control circuit switches the motor (4) of the lifting mechanism
4> starts rotating in the direction of arrow B. The motor (44
) rotates in the direction of arrow B, the fifth pulley (45) rotates in the direction of arrow B, and the rotation is caused by the rotation of the belt (46).
The ohm chia <48> formed on the lower surface of the sixth booley (47) is transmitted to the sixth booley (47) via
can be rotated in the direction of arrow C. The worm gear (48)
The rotation in the direction of arrow C is transmitted to the sixth gear (49〉).
The sixth gear (49) is transmitted to the seventh and eighth gears (51) and (52) via the fixed shaft (5o), and the seventh and eighth gears (51) and (52) It is rotated in the arrow direction and the arrow E direction in FIGS. 3 and 4, respectively. When the seventh gear (51) rotates in the direction indicated by the arrow, the first rotating body 53> rotates in the direction of the arrow F about the fulcrum (90), so that the point of action of the first rotating body (53) The guide member (91) is connected to the tongue piece (5b) (
5> is biased downward. On the other hand, the eighth gear (52)
When rotates in the direction of arrow E, the second rotating body (
54) rotates in the direction of arrow G about the fulcrum (92), the connecting member (54) fixed to the second rotating body (54)
5) also rotates in the direction of arrow G about the fulcrum (92), and attaches the tongue piece (6b) to the point of action (93) of the connecting member (55).
The guide member (6) to which is connected is urged downward. As a result, the support base decreases. Here, the gear portions (53a) and (54b> of the seventh and eighth gears (51> and (52) and the first and second rotating bodies (53> and (54)) are the same, respectively. Now that the guide members (5) and (6) are formed into a shape, the guide members (5) and (6) have adjustment screws (56).
By changing the fixing positions of the second rotating body (54) and the connecting member (55>), the respective heights are matched, so that the support body is kept in a horizontal state and descends. Since the base plate (39) to which the sliding mechanism (forge is attached) is fixed to the guide member (5), the support member i
) is lowered, the first and second arms (57) and (58) slide and rotate in predetermined directions, respectively, and the sliding mechanism (good) moves as the intersecting angle changes.
also falls at the same time. When the support body is lowered to a state where the chucking member (42) of the clamp plate (8) is brought into contact with the turntable (7>), the substrate (39)
The movable contact piece (89a) of the switch (89) fixed to is pressed by a protrusion (94) provided on the base (12), and a control circuit (not shown) causes the support (4) to reach its maximum position. The rotation of the motor (44) is stopped when it is detected that the motor (44) is located at the lower part. The autochanger device then enters a standby state in preparation for the next operation.

When placing a CD on the tray (1) from the above-mentioned standby state, the operator operates an open/close switch (not shown) corresponding to the tray (1) on which the CD is to be placed.

Then, the motor (44) of the lifting mechanism (2> starts rotating in the opposite direction of arrow B. The rotation of the motor (44> in the opposite direction of arrow B)
) and the sixth booley (47) to rotate the worm gear <48> in the opposite direction of arrow C, so that the seventh and eighth gears (51) and (52> rotate in the opposite direction of the arrow and Rotate in the opposite direction of arrow E.

When the seventh gear (51) rotates in the opposite direction of the arrow,
When the first rotating body (53) rotates about the fulcrum (90) in the opposite direction of arrow F and the eighth gear (52) rotates in the opposite direction of arrow E, the second rotating body (54) and Connecting member (5
Since the guide member 5) rotates about the fulcrum (92) in the opposite direction of the arrow G, both the guide members 5> and (6) are urged upward. Therefore, the support body and the sliding mechanism (nose) rise. At this time, the first and second arms (57
) and (58) are respectively slid and rotated in predetermined directions to displace the intersection angle, and the first and second arms (
The spring (61) passed between the hooks (57) and (58) urges the board (39) upward, and the sliding mechanism (the influence of the phantom weight is reduced, so the sliding mechanism (Dan) rises smoothly together with the support body (4).Also, when the support body (4) and the sliding mechanism (base) rise, a photo sensor for detecting the tray position attached to the clamp plate (8) is used. The light from the light emitting diode (41a) is transmitted to the photodiode (4) by the signal obtained from the cover (41) at the protrusion (17) of the tray (1) or the protrusion (19a) of the top plate (19).
1b) is detected, and the heights of the support body (4) and the sliding mechanism (base) are detected. Further, the fifth gear (31) of the sliding mechanism (β) is configured such that the protrusion (62) of the first rotating member (33) is in contact with a cam portion (66) formed on the base (12). The rack of the tray (1) vibrates according to the concave and convex portions of the cam section (66), and the height of the tray (1) matches the height of the tray (1) stored in the storage section (tsubo). 13) It moves so as to be engaged with the surface in a direction perpendicular to the surface, so that it is surely engaged with the rack (13) and does not interfere with the elevation of the sliding mechanism (β).

When the support (4) and the sliding mechanism (base) reach a predetermined position, the rotation of the motor (44) is stopped, and the support (4) and the sliding mechanism (forging) are stopped.In this case, the photocoupler (
44) is the tray (1) in a state where the tray (1) is stored in the storage part (tsubo) from the position where the guide grooves (5a) and (6a) of the guide members (5) and (6) are formed, respectively. ) A protrusion ( 19a), so the protrusion (
17) or if the rotation of the motor (44) is stopped when the protrusion (19a) of the top plate (19) is detected, the support
and the sliding mechanism (dan) is in a predetermined position, that is, the guide member (
5) and (6>), respectively, the guide grooves (5a) and (6)
It is stopped at a position where the height of a) matches the height of the tray (1) on which the CD is to be placed.

When the support body (4) and the sliding mechanism stop at a predetermined position, the motor (20) of the sliding mechanism starts rotating in the direction of arrow H. When the first pulley (21) rotates in the direction of arrow H, the rotation is transmitted to the second pulley (23) via the belt (22), and the second pulley (23) is integrally attached to the lower surface of the second pulley (23). The molded first gear (24) is rotated in the direction of arrow 1. The rotation of the first gear (24) in the direction of arrow
The signal is transmitted to the gear (27), and the fourth gear (27) is
direction. When the fourth gear (27) rotates in the direction of arrow J, the third pulley (28) rotates in the direction of arrow J, so the rotation is transmitted to the fourth pulley (30) via the belt (29). The fifth gear (31) provided on the lower surface of the fourth pulley (30) is rotated in the direction of the arrow. Here, by the projection (87) formed on the guide member (6) of the support body (4), a plurality of The fitting with the third groove (16) of the tray (1) is sequentially removed as the support (1) rises, and the sliding mechanism (β) is moved to a predetermined position. , the tray (1) on which the CD is to be placed is unlocked, and the fifth gear (31) is fully engaged with the rack (13) of the tray (1). When the fifth gear (31) rotates in the direction of the arrow, the tray (1)
) slides in the direction of the arrow, which is the front of the storage part (18). When the tray (1) slides in the direction of the arrow, the first and second flaps (73) are released from the first and second grooves (14) and (15) of the tray (1), respectively, in accordance with the sliding movement. and (74) respectively protrusions (73b) and (74b)
is removed, and the first and second flaps (73) and (74) are rotated by being pressed by the left side of the tray (1). The first and second switches (78) and (81) are switched by the respective tongue pieces (73a) and (74a) of 74), and the tray (1) is located in front of the storage section (fold). is detected.

Then, as the tray (1) continues to slide, the third groove (1)
6), the protrusion (74b) of the second flap (74) is fitted to lock the tray (1), the second flap (74) rotates, and the second switch (81) is turned on again. Since the switching is performed, the rotation of the motor (20) is stopped and the operation of the sliding mechanism (Dan) is stopped. At this time, the tray (1) becomes the disc loading/unloading position where the CD is loaded/unloaded,
Since the notch (1b) protrudes to the point where it is located forward of the storage part (1), the recess (1b) of the tray (1)
If a CD (2) is placed on the tray (1), the CD will be placed on the tray (1).
The placement of D(2) is completed.

When storing the tray (1) in the disk loading/unloading position in the storage section (silence) from the above-mentioned state, the opening/closing switch corresponding to the tray (1) is operated again. Then, the motor (2
0) starts rotating in the opposite direction of arrow H. The motor (
20) in the opposite direction of the arrow H, the first pulley (21
) is transmitted to the first gear (24) via the belt (22) and the second pulley (23), causing the first gear (24) to rotate in the opposite direction of arrow I. When the first gear (24) rotates in the opposite direction of arrow I, the rotation is transmitted to the fourth gear (27) via the second and third gears (25) and (26). (27) can be rotated in the opposite direction of arrow J. When the fourth gear (27) rotates in the opposite direction of arrow J, the rotation is caused by the third pulley (28) and the belt (29).
) and the fifth gear (31) via the fourth pulley (30)
is transmitted to rotate the fifth gear (31) in the opposite direction of the arrow. Here, the tray (1) is in the disk attachment/detachment position shown in FIG. 1, and the protrusion (74b) of the second flap (74) is fitted into the third groove (16) of the tray (1>). , the shape of the third groove (16) and the protrusion (74b) is as follows:
The lock is engaged when the tray (1) is slid in the direction of the arrow, and the lock is released when the tray (1) is slid in the opposite direction of the arrow. When the gear (31) rotates in the opposite direction of the arrow, the tray (1)
) slides in the opposite direction of the arrow and the protrusion (74b
) is pressed by the side surface of the tray (1), the second switch (81) is switched by the tongue (74a) of the second flap (74), and the tray (1) is moved into the storage part (
It is detected that the vehicle is located in front of the vehicle. and,
The tray (1>) continues to slide in the opposite direction of the arrow, and the first
and the respective protrusions (7) of the first and second flaps (73) and (74) in the second grooves (14) and (15), respectively.
3b) and <74b) are inserted and the first and second switches (78) and (81) are switched, the control circuit detects that the tray (1) is stored in the storage section (18), and the motor is activated. The rotation of (20) is stopped and the sliding mechanism (
base) stops working.

As mentioned above, when the desired opening/closing switch is operated, the desired tray (1) slides to the disc loading/unloading position, and when the opening/closing switch is operated again, the tray (1) is stored in the storage section (tsubo) and once removed. , support (ri) and sliding mechanism (base)
When the height is detected, the support body (4) and the sliding mechanism (nose) are raised or lowered by the lifting mechanism (2) based on the height of the current position according to the operated open/close switch. and move to the desired height of tray (1).
By repeating the above operation, the storage section
c p (
2) can be placed.

Tray (1) stored in the storage section (transfer) as described above
When playing from a state where a CD (2) is placed on all or part of the tray, select the tray (1) on which the CD (2) you want to play is placed and perform the playback operation.

Then, first, the lifting mechanism (motor (44)) rotates, and depending on the height of the selected tray (1), the support (4) is moved based on the currently positioned height as described above. and the sliding mechanism (base) move. Then, when the support body (base) and the sliding mechanism (base) match the height of the selected tray (1), the rotation of the motor (44) stops; The sliding mechanism (forged motor (20) starts rotating in the opposite direction of the arrow H. Therefore, the fifth gear (31) rotates in the opposite direction of the arrow, so the tray (1) moves in the direction of the arrow. The guide members (5) and (6) are slid in the opposite direction and moved to the rear of the storage section (tsubo).At this time, the respective guide grooves (5a) and (6a) of the guide members (5) and (6) are placed in the tray ( 1), the right and left sides of the tray (1) are guided by the guide grooves (5) and (6), respectively, and the tray (1) is slid in the opposite direction of the arrow. When the tray (1) slides in the opposite direction of the arrow and the tray (1) moves a predetermined amount to the rear of the storage section (tsubo), the rack (13) of the tray (1) The rear part of the gear is meshed with the fourth gear (27).Here, the fourth gear (27) is connected to the fifth gear (31).
and are connected by the third and fourth pulleys (28) and (30) of the same shape, whose rotation is transmitted through the belt (29), and have the same shape.
The fourth gear (27) and the fifth gear (31) rotate in the same direction and at the same speed. Moreover, the rack (13)
A slit (96) is formed in the rear part of the rack (13) to provide elasticity, so the rack (13) is connected to the fourth gear (2
7) meshes smoothly. Therefore, the tray (1) continues to slide in the opposite direction of the arrow, and eventually the rack (13
) and the fifth gear (31) are disengaged, but after that, the tray (1) continues to slide in the opposite direction of the arrow by the fourth gear (27>. As the sliding progresses in the opposite direction of the arrow, the C placed on the tray (1)
Position where the center hole (2a) of D (2) faces the chucking member (42) of the clamp plate (8) (standby position)
When the switch (88) provided on the clamp plate (8) is switched by the rear surface of the tray (1>), the light emitting diode (40a) of the photocoupler (su) for disc detection is switched on at this time. and photodiode (
40b) and a tray (1) at the opposite position.
The detection hole (97) is located in the light emitting diode (4).
0a) and photodiode (40b) between CD (2
), it is detected that a CD<2) is placed on the tray (1).

When the switch (88) is switched, the rotation of the motor (20) of the sliding mechanism (1) is stopped, the sliding of the tray (1) is stopped, and the arrow B of the motor (44) of the lifting mechanism (1) is stopped. Rotation in the direction is started, and the support body 〉 and the sliding mechanism (
(d) begins to descend. Therefore, the tray (1) is lowered together with the support (4). As the tray (1) continues to descend, the CD placed on the tray (1) eventually
(2> is indicated by the broken line in FIG. 5, the turntable 7
), but the tray (1) is further lowered. Then, the switch (
89) is switched by the protrusion (94) provided on the base (12), and the rotation of the motor (20) is stopped.
The tray (1) is stopped at a playback position spaced apart from the CD (2). When the tray (1) is in the playback position, the CD (2) placed on the turntable (7)
) is pressed onto the turntable (7) by the chucking member (42) of the clamp plate (8) and is spaced apart from the tray (1), so the switch <89> is switched. When the turntable (7) rotates, the CD (2) also rotates due to the rotation.

Therefore, the optical pickup (11) picks up the CD (
2> is played back.

When the playback of the CD (2) is finished and the turntable (7) is stopped, the lifting mechanism (motor (44)) starts rotating in the opposite direction of arrow B, and the support (ri and sliding mechanism) (base)
begins to rise. Therefore, the tray (1) rises, and the CD (2) placed on the turntable (7) comes into contact with the recess (1a) of the tray (1).
D (2) detects a location where the tray (1) is not stored in the storage section (anchor) by a signal obtained from a photocoupler (41) for detecting the tray position while the tray is placed on the tray (1). As a result, the support body (4) and the sliding mechanism (pre) continue to rise, and the heights of the guide grooves (5a) and (6a) of the guide members (5) and (6), respectively, reach the storage area. When it is detected that the height of the tray (1) in (18) matches the height of the place where it is not stored, the rotation of the motor (44) is stopped and the support body (4) and the sliding mechanism (I) are stop at that location. Then, the motor (20) of the sliding mechanism (base) rotates in the direction of arrow H, and the tray (1) slides in the direction of arrow H. The sliding movement of the tray (1) in the direction of the arrow progresses, and eventually the storage of the tray (1) in the storage section (tsubo) is completed, and the rotation of the motor (20>) is stopped to complete the operation.

By the way, when the tray (1) slides in the direction of the arrow and is stored in the storage section (tsubo), the rack (1) of the tray (1)
There are times when the fifth gear (31) is engaged with the rack (13) while the fourth gear (27) is engaged with the rack (13). The second rotating member (36) is movable by the member (33) and the belt (29) is rotatable.
Since the tension is kept constant by
) continues to slide smoothly.

(G) Effects of the Invention As described above, the autochanger device for a disc player according to the present invention includes a cam portion provided on the side surface of the storage portion and a movable moving member having a pinion gear pivotally supported in the sliding mechanism. By providing a guide portion on the movable member, the pinion gear is engaged with the rack surface formed on the side surface of the tray from the vertical direction, so that the pinion gear moves up and down of the sliding mechanism. It has the advantage of not being a hindrance and ensuring reliable engagement between the pinion gear and the rack of the tray, making the disk exchange operation reliable.In particular, it is used in a front-loading type autochanger device as shown in the embodiment. It is suitable.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a front view thereof, Figs. 3 and 4 are right and left side views, respectively, of the autochanger device shown in Fig. 1, and Fig. 5 is a right side view. FIG. Explanation of main drawing numbers (1)...Tray, (3)...Sliding mechanism, (4
)...Support, (9)...Elevating mechanism, (Paddy)
...Player section, (12)...Base, (13>...
・Rack, (舒)...Storage department, (31)...5th
Gear, (33)...first rotating member, <62>...
-Protrusion, (66)...cam part.

Claims (1)

[Claims] (1) In an autochanger device for a disc player that selects a disc to be played by selectively lowering a disc that has been slid above the turntable and mounting it on the turntable, the disc is placed on a rack on the side. a storage section in which a plurality of trays are stacked vertically and stored with the rack peeking out; a pinion gear that meshes with the rack of the tray is pivotally supported; a sliding mechanism for selectively sliding the tray in the horizontal direction from the storage section to above the turntable; a cam portion comprising a concave portion and a convex portion provided on the side surface of the storage portion in accordance with the storage position of the tray, and a lifting mechanism for lifting and lowering the sliding mechanism; The sliding mechanism selectively slides trays stored in the storage section above the turntable, and when the sliding mechanism is raised and lowered in order to select a tray to be slid, the cam section and an autochanger device for a disc player, characterized in that the gear is engaged with the rack surface of the tray from a direction perpendicular to the rack surface of the tray by the guide portion of the moving member.