JPS6379273A - Automatic changer device for disk player - Google Patents

Abstract

PURPOSE:To ensure the storage and holding of a tray and to miniaturize the titled device by pressing a prescribed lock member in response to the moving position of a slide mechanism so as to unlock the tray thereby making the thickness of the tray thin. CONSTITUTION:An engagement part is formed on a tray having a recessed part 1a and a notch 1b and the lock member supported 4 movably in response to plural trays stored in a storage part is provided. A pressing part 87 pressing the lock member in response to the moving position of a mechanism 3 sliding the tray to be carried to the reproducing position is provided. Then the lock member is engaged with the engaging part, the tray is locked to the storage part, and the prescribed lock member in response to the moving position is depressed to unlock the tray in response to the moving position.

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 relates 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 bits corresponding to digital signals formed on the signal surface. The CD is easy to handle and has a diameter of 1
2 cm, which is better than conventional analog discs (records), making it suitable for CD players that selectively take out discs to change the disc to be played, and for autochangers that store multiple discs. .

An example of an autochanger 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,
The transport mechanism is lowered and the disc is moved to the player section where it is played. In other words, 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 to be Solved by the Invention Incidentally, the autochanger device that exchanges the disc to be played by transporting the disc storage case as described above supports the disc storage case so that it can be pulled out from the disc storage part and plays the disc. A locking mechanism is required to prevent a disk storage case other than the disk storage case in which the disk to be stored and held from falling out of the disk storage section due to impact. Therefore, the above-mentioned JP-A-60-
The autochanger device disclosed in Japanese Patent No. 52950 includes a lock arm that is rotatably supported by a disc storage case and is biased in a predetermined direction by a spring. An engagement hole is formed in the side wall of the lock arm, and a lock pawl formed at the tip of the lock arm is engaged with the engagement hole by the biasing force of the spring. When the case is pulled out from the disk storage section, the lock arm is rotated against the biasing force of the spring to release the engagement. That is, the auto-change system must be provided with a lock arm that is rotatably supported by each disc storage case and a spring that applies a biasing force in a predetermined direction to the lock arm. becomes complicated, and the thickness of the disc storage case also increases. Therefore, an autochanger device that uses a plurality of disc storage cases is disadvantageous in terms of manufacturing cost and miniaturization of the device.

(d) Means for Solving the Problems The present invention is an autochanger device for a disc player that has been made in view of the above-mentioned points. The storage portions are movably supported by a base on which the storage portions are provided, and are supported with a biasing force applied thereto, and are engaged with the engaging portions by the biasing force. a plurality of locking members for respectively locking the trays in the storage section; a sliding mechanism that slides the tray in order to pull it out and transport it to the playback position; and a locking member that is fixed to the sliding mechanism and that resists the urging force according to the position of movement of the sliding mechanism. and a support body that supports the tray slid by the sliding mechanism.

(*) Effect The present invention forms an engaging portion on the tray, and provides a locking member movably supported in the storage portion corresponding to each of the plurality of trays stored in the storage portion, and the recycler is regenerated. A pressing part is provided that presses the locking member according to the movement position of a sliding mechanism that slides the tray in order to transport the tray to the storage position, and by engaging the locking member with the engaging part, the tray is moved to the storage part. At the same time, by pressing a predetermined locking member corresponding to the moving position of the sliding mechanism, the tray is unlocked according to the moving position of the sliding mechanism.

(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 the recess (1a) where the 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>; a moving mechanism (4) is the tray (1);
a guide groove (5a) that is engaged with the right and left side surfaces of the
and (6a) are formed, and guide members (5) and (6) supporting the tray (1) and the guide members (5) and (6a) are formed.
6) a support consisting of a clamp plate (8) fixed to the turntable (7) and clamping the CD (2) onto the turntable (7); (2) a lifting mechanism for raising and lowering the support;
(Paddy) is a turntable (7) that rotates a CD (2)
and a player section equipped with an optical pickup (11) for reading signals recorded on the CD (2). and,
The sliding mechanism is fixed to the support body. Further, the elevating mechanism and the player section 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.
is formed, and a protrusion (17) is formed on the right side of the rear surface, and the tray (1> is stored in a storage section (18) provided in front of the base (12). (12)
As shown in FIG. 2, the storage section (18) has 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) can be accommodated in a state where the trays (1) are slidably stacked at intervals. And the top plate (19) of the storage section (silence)
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 (tsubo), 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 (tan) includes a motor (20) serving as a driving source, a first pulley (21) fixed to a rotating shaft (20a) of the motor (20), and a rotation of the first pulley (21). is transmitted to the second pulley (23) via the 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
The gear (25) and a third gear (26) integrally formed on the upper surface of the second gear (25) mesh with the third gear (26) and mesh with the rack (13) of the tray (1). A fourth gear (27) serving as a binion gear;
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).
0) and the rack (1) of the tray (1).
The 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 (33a
) is biased in the opposite direction of arrow A by the first rotating member (33) and the spring (35), which are rotatable about the shaft (
36a) A second rotating member that is rotatable around <3
6) between the third and fourth pulleys (28) and (30) regardless of the movement of the fifth gear (31>) by means of the bin (37) provided on the second rotating member (36). It consists of a belt tensioning mechanism (Japanese) for keeping the tension of the stretched belt (29) constant, and is attached to a base plate (39) that can be raised and lowered relative to the base (12). ing.

The support has a photocoupler (view) 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), and a storage section ( The protrusion (17) of the letter tray (1) or the protrusion (19) of the top plate (19) stored in the letter tray (1)
A photocoupler (41) for tray position detection in which a light emitting diode (41a) and a photodiode (41b) are opposed to each other with a light emitting diode (41a) interposed therebetween is provided. CD in the opposite position
A chucking member (42) for chucking (2) onto the turntable (7) is provided. And, it is connected to the support body (the top plate (19) of the storage part (middle)) by a connecting plate (<43) in which one end is slidably fitted loosely and the other end is pivotally supported. , so that the tray (1) stored above the support (0) does not fall out of the storage part (1) due to an external impact when the support (4) is located below. , to prevent the CD (2) in the tray (1) from falling out.

In addition, at this time, the tray (1) stored below the support body (the guide member (5) of the support body (5) and (
6), each tongue piece (5b) and (6b) prevents 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 belt that rotates the fifth pulley (45). 6th pulley (47) transmitted via (46)
, a worm gear (48) formed on the lower surface of the sixth booley (47), a sixth gear (49) that meshes with the worm gear (48), and a shaft 50 to which the sixth gear (49) is fixed. ), the rotation of the sixth gear (49) is transmitted through the shaft (50), and seventh and eighth gears (51) are provided inside the right and left sides of the base (12), respectively. and (52), and a gear portion (53a) that meshes with the seventh gear (51), and is connected to a tongue piece (5b) integrally molded on the support (the guide member 5). a second rotating body (54) having a gear portion (54a) that meshes with the eighth gear (52), and integrated with the second rotating body 54) and the guide member (6). The height of the guide member lever 6) is adjusted by adjusting the positional relationship between the connecting member lever 55) that connects the molded tongue piece (6b) and the second rotating body (54) and the connecting member (55). an adjustment screw (56) to match the height of the other guide member 5), and first and second arms supported by the base (12) and connected at the center and intersecting in an X shape. (57) and (58
), and supports the support body so that it can rise and fall.The first arm (57) has one end attached to the base (1
2), the other end is a circular arc-shaped first groove (5) centered on the one end.
9) the second arm (58) is slidably pivoted therein;
has one end slidably supported in a vertical direction and the other end slidably supported in a second groove (60) formed in a horizontal direction, and the first and second arms 57) and (58) ) is applied between the springs (61) and urges the base plate (39) to which the sliding mechanism is attached upward, so that the sliding mechanism is smoothly raised and lowered along with the support. The first groove (59) is formed in a metal plate (63) loosely fitted to the base (12), and the second groove (60) is formed in the metal plate (63) loosely fitted to the base (12). (12) is integrally molded.

By the way, as shown in FIG. 3, the base 12) has the fourth or fifth gear 27) or (31) of the sliding mechanism ()
The fourth and fifth gears (
27) and (31), respectively, have sliding holes (
64) and (65) are drilled. In particular, the sliding hole (
64) has holes corresponding to the number of trays (1) that can be stored in the storage section (18), and each of the sliding holes (64) allows a hole to be inserted into the storage section (18). A rack (13) formed on the stored 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 (1). The cam portion (66>) includes a first rotating member (33).
The protrusion (62) is in contact with the first rotating member (3).
3) is urged in the direction of arrow A by a spring (32). Therefore, since the protrusion (62) maintains a state in contact with the cam part (66), it serves as a guide part for the first rotating member (33), and is attached to the concave and convex parts of the cam part (normal). move together. Therefore, when the sliding mechanism (β) ascends or descends, the first rotating member (33) rotates according to the concave and convex portions of the cam portion (66), and as a result, the first rotating member The fifth gear (31) pivotally supported by the member (33) rotates each tray (1) stored in the storage section (tsubo) in a direction perpendicular to the surface of the rack (13) of the tray (1). The fifth gear (31) and the rack (31) of the tray (1) are moved so that they are meshed with each other so that the fifth gear (31) does not interfere with the lifting and lowering of the sliding mechanism (1). 13) to ensure reliable engagement.

In addition, the base (12) includes a support (12) and a sliding mechanism (3).
) guide holes (67) to (72
) are drilled, and in particular, guide holes (67) to (69) drilled in the right side of the base (12) guide the base plate 39) to which the slider groove (base) is attached. Support body (迭)
It is also used for connecting and fixing.

Furthermore, the base (12) has a first tray on the left side for detecting and positioning the tray (1) as shown in Fig. 4.
and second flaps (73) and (74) and tray (1)
A locking device @ (75) is provided to lock the.

The first flap 73) is pivotally supported by bearings (76a) and (76b) formed on the base 12), and is supported by a spring (77).
) is urged to contact the left side surface of the base (12), and the tongue piece (73a) provided on the first flap (73) is pressed against the first switch (78) for position detection. It is in contact with the movable contact piece (78a). And the first
The flap (73) has a protrusion (73b) corresponding to each of the plurality of trays (1) stored in the storage section (18>).
is 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 storage part (once). The first groove (1) of the tray (1) is inserted through the hole drilled in the
4) is fully integrated.

The second flap (74) is pivotally supported by bearings (79a) and (79b) formed on the base (12>), and is supported by a spring (80).
) is urged 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 pressed against the second switch (81) for position detection. It is in contact with the movable contact piece (81a). And the second
The flap (74) has a protrusion (74b) corresponding to each of the plurality of trays (1) stored in the storage section (18).
) is formed, and the protrusion (74b) is connected to the tray (1).
is stored in the storage section <18>, the base (12)
A hole (
a second groove (15) of the tray (1) passing through the tray (not shown);
It is interfering with the intrusion.

The locking mechanism (H) has a plurality of arms (82) serving as opening/link members corresponding to each of the plurality of trays (1) stored in the storage section (18), and the plurality of arms (82
) is pivotally supported by a bottle (84) whose ends are supported by bearings (83a) and (83b), respectively, and is attached in a direction to be pressed against the left side surface of the base (12) by a leaf spring (85). Forced. And said arm (
82> are formed with first and second protrusions (82a) and (82b), respectively, and when the tray (1) is stored in the storage part (rest), the first protrusion (82a) It passes through a hole (86) drilled in a portion of the base (12) facing the first protrusion (82a) and engages with the third groove (16) that becomes the engagement portion of the tray (1). has been done. Therefore, the tray (1) in which the first protrusion (82a) and the third groove (16) are engaged is reliably stored and held in the storage portion (18). The arm (82) has a pressing part (87) formed on the guide member (6) of the support body (the base).
2) through the hole (99) drilled in the arm (82).
When the arm (82) comes into contact with the second protrusion (82b), a pressing force acts on the arm (82) in the direction of arrow M, and the leaf spring (85
) is rotated about the bottle (84>) as a fulcrum, and the first protrusion (82a) of the arm (82>) and the third groove (
16), so that the third groove (16) of the support (trake 1 aligned with the high awn of the ridge)
The first protrusion (82a) of the arm (82) that was engaged with
is removed from the third groove (16). Here, the tray (1) whose height matches the height of the support body (1) means that, as shown in FIG. ) is provided on the back surface where the guide groove (6a) is formed, so the tray (1) matches the height of the guide groove (6a). Further, the second protrusion (82b) of the arm (82) and the suppressing portion (87) are both formed into an inclined surface by taking the corners of the upper and lower surfaces, as shown in the model diagram of FIG. When the suppressing portion (87) moves up and down as the support member moves up or down, a pressing force is applied to the second protrusion (82b) in the direction of arrow N. It is designed so that the chest rises or falls unhindered.

In addition, the leaf spring (85) is connected to the arm (85) as shown in FIG.
2) A slit (100) is formed according to the position where the bottle (84) is placed, and a bearing (83a) of the bottle (84) is formed at both ends.
and (83b) a thin (
It is constructed by bending one metal plate at right angles along the broken line.

Next, the operation of the auto-change system having the configuration as described above will be explained.

When the power is turned on, the first and second switches (78
) and (81) and a switch (88) fixed at the rear end of the support body (ri) is detected by a detection means of a control circuit (not shown), and the position of the tray (1) is detected. .If it is confirmed by the above detection that all of the plurality of trays (1) are fully stored in the storage part <18), then the trays (1) are fixed to the board (39) to which the sliding mechanism (base) 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 causes the motor (44) of the lifting mechanism (2) to start 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, the rotation is caused by the belt (4
6) to the sixth booley (47);
The ohm gear (4) formed on the bottom surface of the booley (47)
8) Rotate in the direction of arrow C. The two ohm gears (4
The rotation in the direction of arrow C in 8) is transmitted to the sixth gear (49), and the sixth gear (49) is fixed to the shaft (50).
is transmitted to the seventh and eighth gears 51) and (52) through Rotate it. When the seventh gear 51) rotates in the direction of the arrow, the first rotating body 53) rotates in the direction of the arrow F about the fulcrum (90).
The guide member (5) to which the tongue piece (5b) is connected to the action point 91) is urged downward. On the other hand, the eighth gear (5
2) rotates in the direction of arrow E, the second rotating body (54> in FIG. 4 rotates in the direction of arrow G about the fulcrum (92), so that the connection fixed to the second rotating body (54) The member (55) also rotates in the direction of arrow G about the fulcrum 92), and the tongue piece (6) is attached to the point of action <93) of the connecting member (55).
The guide member (6) to which b) is connected is urged downward. Therefore, the support body is lowered. Here, the gear portions (53a) of the seventh and eighth gears (51) and (52) and the first and second rotating bodies (53) and (54) are provided.
) and (54b) are formed in the same shape, respectively, and the guide members (5) and (6) are connected to the adjustment screw (54b).
In step 6), by changing the fixing positions of the second rotating body (54) and the connecting member (55), their heights are matched, so the support body (54) is kept in a horizontal state and lowered. Moreover, since the base plate (39) to which the sliding mechanism ('') is attached is fixed to the guide member (5), when the support body (4) is lowered, the first and The second arms (57) and (58) are slid and rotated in predetermined directions, changing the crossing angle, and the sliding mechanism (good) also descends at the same time.The support body (4) descends;
When the tilting member (42) of the clamp plate (8) descends to the state where it comes into contact with the turntable (7), the movable contact piece (8) of the switch (89) fixed to the board (39)
9a) is pressed by the protrusion (94) provided on the base (12), and the support (9a) is pressed by a control circuit (not shown).
It is detected that the motor is located at the lowest position, and the motor
rotation is stopped. 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, an open/close switch (not shown) corresponding to the tray (1) on which the CD is to be placed is operated.

Then, the lifting mechanism (Isao's motor (44) starts rotating in the opposite direction of arrow B. The rotation of the motor (44) in the opposite direction of arrow B is caused by the fifth pulley (45) and the belt (46).
and is transmitted via the sixth booley (47) and rotates the worm gear (48) in the opposite direction of arrow C, so the seventh
And the eighth gears (51) and (52) rotate in the opposite direction of the arrow mark and the opposite direction of the arrow E, respectively.

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
5) rotates about the fulcrum (92) in the opposite direction of arrow G, both guide members (5) and (6) are urged upward. Therefore, the support body (4) and the sliding mechanism (base) rise. At this time, the first and second arms (5
7) and (58> are respectively slid and rotated in predetermined directions to displace the intersection angle, and the first and second arms 57) and (58) are hooked by a spring (61) passed between them. The substrate (39) is urged upward and the sliding mechanism (39)
Since the influence is reduced by the weight of the sliding mechanism, the sliding mechanism rises smoothly together with the support. Also, when the support and the sliding mechanism (β) rise, the clamp plate (8 The light from the light emitting diode (41a) is detected by the signal obtained from the photocoupler (41) for detecting the tray position attached to the tray (1) or the projection (19a) of the top plate (19). Photodiode (41
b) The number of times and the timing at which the light reception is blocked is detected, and the height of the support body and the slider tank is detected. gear(
31), the protrusion <62) of the first rotating member (33) is in contact with the cam part (66) formed on the base (12), so that the concave part and the convex part of the cam part (66) are The rack moves according to the height of the tray (1) stored in the storage part (18), and is engaged with the surface of the rack (13) of the tray (<1) from the vertical direction every time the height of the tray (1) matches the height of the tray (1) stored in the storage part (18). It moves and meshes securely with the rack (13), and does not interfere with the raising and lowering of the sliding mechanism.

When the support body (4) and the sliding mechanism (base) reach a predetermined position, the rotation of the motor (44) is stopped, and the support body (4) and the sliding mechanism (base) are stopped.In this case, the photocoupler (
44) is the tray (1) in a state where the tray (1) is just stored in the storage part (18) from the position where the guide grooves (5a> and (6a) of the guide members <5) and (6>) are formed, respectively. ) A protrusion (19a) is provided on the top plate (19) which is arranged above the tray (1) by the distance between the trays (1) and which is located at the top of the tray (1) by the distance. ) on the tray (1) located one level above the tray (1) on which you want to place the CD.
17) or when the protrusion (19a) of the top plate (19) is detected, the rotation of the motor (44) is stopped.
and the sliding mechanism (base) is in a predetermined position, that is, the guide member (
5) and (6), respectively, 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 and the sliding mechanism (base) stop at a predetermined position, the motor (20) of the sliding mechanism (base) 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 the arrow.The rotation of the first gear (24) in the direction of the arrow is caused by the rotation of the first gear (24) through the second gear (25) and the third gear (26).
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. By pressing the second protrusion <82b) of the arm (82) of the locking mechanism (H), the first protrusion (82a) of the arm (82) and the plurality of trays (1) stored in the storage part (S) are pressed. is disengaged from the third groove (16) in order according to the raised position of the support (4), and since the sliding mechanism ()) has been moved to a predetermined position, the CD
The tray (1) on which the item is to be placed is unlocked, and the fifth gear (31) is engaged with the rack (13) of the tray (1). Therefore, the fifth
When the 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 section (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 (c) respective protrusions (73b) and (74b)
is removed, and the first and second flaps (73) and (74> are rotated by being pressed by the left side surface 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 (tsubo). is detected.

As the tray (1) continues to slide, the third groove (1)
The protrusion (74b) of the second flap (74) is fitted into the tray (1) and the second flap (74) is rotated, and the second switch (81) is turned on again. Since the switching is made, the rotation of the motor (20) is stopped and the operation of the sliding mechanism (3) is stopped.At this time, the tray <1) is at the disc loading/unloading position where a CD is loaded/unloaded.
Since the notch (1b) protrudes forward from the storage part (1b), the concave part (1b) of the tray (1)
If a CD (2) is placed on the tray (1), the CD will be placed on the tray (1).
D (2> placement 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 boolean 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> in the opposite direction of the arrow J. When the fourth gear (27) rotates in the opposite direction of the arrow J, the rotation is caused by the third pulley (28) and the belt torque 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 not completely 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 (1).
8) is detected to be located in front of. 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 (mute), and the motor is activated. The rotation of (20) is stopped, and the operation of the sliding mechanism (base) is stopped.

As mentioned above, when the desired opening/closing switch is operated, the desired tray (1) slides to the disk loading/unloading position, and when the opening/closing switch is operated again, the tray (1) is stored in the storage section (middle) and once removed. , support (, S> and sliding mechanism (
When the height of the elevator (tei) is detected, the lift mechanism 2 is moved based on the current height according to the operated open/close switch.
), the support body (rake) and the sliding mechanism () are raised or lowered to move to the desired height of the tray (1), so by repeating the above-mentioned operation, the storage portion (
CD (
2) can be placed.

Tray (1) stored in the storage section (middle) 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 (Rinomotor<44) rotates, and according to the height of the selected tray (1), the support (1) is moved based on the current height as described above. When the heights match, the motor (44) stops rotating, and the motor (20) of the slider (20) starts rotating in the opposite direction of the arrow H. Therefore, the fifth gear (31) rotates in the direction opposite to the arrow, so the tray (1) is slid in the direction opposite to the arrow and moves to the rear of the storage section (18). At this time, the heights of the guide grooves (5a) and (6a) of the guide members (5) and (6), respectively, match the height of the tray (1), and the suppressing portion (87) (
1> third groove (16) and the first protrusion (82) of the arm (82)
Since the tray (1) is disengaged from the guide groove (5) and the groove (6), the right and left sides of the tray (1) are disengaged from the guide groove (5) and the groove (6), respectively.
is guided by and slides in the opposite direction of the arrow. When the tray (1) slides in the opposite direction of the arrow and moves a predetermined amount to the rear of the storage section (18), the rack (13) of the tray (1) moves in accordance with the movement. > is meshed with the fourth gear (27). Here, the fourth gear (
27) is the fifth gear (31) and the rotation of each other is the belt (29).
), which are connected by the third and fourth pulleys (28) and (30) of the same shape and have the same shape, so that the
It rotates in the same direction and at the same speed as the gear (31).

Further, a slit (96) is provided at the rear part of the rack (13).
) is formed and has elasticity, so the rack (13) is smoothly meshed with the fourth gear <27). Therefore, the tray (1) continues to slide in the opposite direction of the arrow, and eventually the rack (13) and the fifth gear (31) disengage, but after that, the fourth gear (27) The tray (1) continues to slide in the opposite direction of the arrow.

The tray (1) continues to slide in the opposite direction of the arrow, and the center hole (2a) of the CD (2) placed on the tray (1) progresses.
) reaches the position facing the chucking member (42) of the clamp plate (8) (standby position), the tray (1)
A switch (88) provided on the clamp plate (8) is switched by the rear surface of the clamp plate (8). Also, at this time, the light emitting diode (40a) of the photocoupler (40) for disc detection is
) and the photodiode (40b) are opposed to each other, and the detection hole (97) of the tray (1) is located at the opposite position, and the CD (2) is interposed between the light emitting diode (40a) and the photodiode (40b). Therefore, it is detected that a CD (2) is placed on the tray (1).

When the switch (88) is changed over, the rotation of the motor (20) of the sliding mechanism (?) is stopped, the sliding of the tray (1) is stopped, and the arrow B of the lifting mechanism (Isao's motor (44)) is stopped. Rotation in the direction is started, and the support (ri) and sliding mechanism (
base) begins to descend. Therefore, the tray (1) is lowered together with the support.
The tray (1) that is completely stored in the storage part (1) is securely stored and held in the storage part (1) by the engagement between the first protrusion (82a) of the arm (82) and the third groove (16) of the tray (1). Therefore, the descending of the support body (4) will not be prevented due to the tray (1) falling off due to an impact or the like.

As the support hollow continues to descend, the CD (2) placed on the tray (1) will eventually move as shown by the broken line in FIG.
It is placed on the turntable (7), but the tray (1
〉 is further lowered together with the support body (迭〉).Then, the switch (89) fixed to the board (39) is moved down to the base (
Since the rotation of the motor (20) is stopped by the protrusion (94) provided on the tray (12), the rotation of the motor (20) is stopped.
) 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 pushed onto the turntable (7) by the chucking member (42) of the clamp plate (8). While being pressed, the tray (1
), so when the turntable (7) rotates by switching the switch (89), the CD (2) also rotates due to the rotation. Therefore, the optical pickup (11) picks up the CD (2).
is played.

When the playback of the CD (2) is finished and the turntable (7) is stopped, the arrow B of the motor (44) of the lifting mechanism (2)
starts rotating in the opposite direction, and the support body (4) and the sliding mechanism (
)) 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). Thereafter, while the CD (2) is placed on the tray (1), the tray (1) in the storage section (18) is detected by a signal obtained from the photocoupler (41) for detecting the tray position. Since the location where the guide members (5) and (6)
When it is detected that the height of each of the guide grooves (5a) and (6a) matches the height of the part of the storage section (1B) where the tray (1) is not stored, the motor (44) is rotated. The support body and the sliding mechanism are stopped at that location.Then, the motor (20) of the sliding mechanism (multiple) rotates in the direction of arrow H, and the tray (1) is rotated. The tray (1) continues to slide in the direction indicated by the arrow, until the storage of the tray (1) in the storage section (18) is completed, and the rotation of the motor (20) is stopped. It stops and the operation ends.

By the way, when the tray (1) slides in the direction of the arrow and is stored in the storage section (18), the rack (
13), the fifth gear (31) is sometimes engaged with the rack (13), and the fifth gear (31) is engaged with the first rotating member. (33), and the tension of the belt (29) is maintained constant by the pin (37) of the second rotating member (36), which is rotatable. (1)
The sliding continues smoothly.

(G) Effects of the Invention As described above, the automatic change-route device for a disc player according to the present invention has an engaging portion formed in the tray and a locking member provided in the storage portion, and presses the locking member to lock the tray. Since the suppressing part that releases the lock moves according to the position of the sliding mechanism, the thickness of the tray can be reduced, which is advantageous for downsizing, and the tray can be securely placed in the storage part. It has the advantage of being able to be stored and maintained.

[Brief explanation of the drawing]

1 to 5 show one embodiment of the present invention, and are a plan view, a front view, a right side view, a left side view, and a sectional view from the right side, respectively. FIG. 6 and FIG. 7 are explanatory diagrams for explaining the present invention. Explanation of main drawing numbers (1)...Tray, (3>...Sliding mechanism, (4)
)...support body, (2)...lifting mechanism,
...Player part, (12>...Base, (16)...
・Third groove, (1B>... storage section, (75)... lock mechanism, (82)... arm, (82a) (8
2b)... Protrusion, (85)... Leaf spring, (87
)...pressing part.

Claims (1)

[Claims] (1) In a disc player that plays a disc by transporting a tray on which a disc is placed to a playback position where the disc is placed on a turntable, an engaging portion formed on the tray; A storage section in which a plurality of trays are stored in a stacked state, and a base on which the storage section is provided so as to be movable in correspondence with each of the plurality of trays stored in the storage section. a plurality of locking members each locking the tray in the storage section by engagement with the engaging portion by the urging force; a sliding mechanism supported movably in a direction perpendicular to the loading direction of the trays and sliding the trays in order to selectively pull out the trays from the storage section and transport the trays to a playback position; A support that is fixed to the mechanism and has a pressing part that presses a predetermined locking member according to the moving position of the sliding mechanism against a biasing force, and supports the tray that has been slid by the sliding mechanism. An autochanger device for a disc player, characterized in that the tray is unlocked in accordance with the moving position of the sliding mechanism by pressing a predetermined locking member according to the moving position of the sliding mechanism. .