JP3717824B2 - Disc player - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disc player such as a DVD player.
[0002]
[Prior art]
In general, in a television receiver with a built-in disc player, the disc player is housed in a cabinet of a receiver body having a display screen or a cabinet of a speaker device disposed on the side of the receiver body, A disk tray that protrudes and protrudes from the front panel of the cabinet is provided, and the disk is placed on the tray in a horizontal posture so that the disk is fed to a signal reproducing device disposed at the back of the front panel.
[0003]
[Problems to be solved by the invention]
By the way, in recent years, a thin television receiver having a liquid crystal display or a plasma display has been developed. When a conventional disc player is built in such a thin television receiver, the disc is placed in a horizontal posture. As a result, the depth dimension of the television receiver cabinet is limited by the diameter of the disk.
[0004]
Therefore, a disc player has been proposed that feeds a disc to a recording / playback position in a vertical position. In the disc player, the disc loading is started by pressing the disc inserted into the disc insertion slot in a vertical posture. The
However, when the disk is pushed down with an excessive force, there is a problem that the disk is deformed by the force or the disk loading mechanism is damaged.
[0005]
Further, in the disk loading mechanism that supports the disk holder so as to be able to reciprocate in the horizontal direction with respect to the fixed chassis, drives the holder, and sends the disk in the holder to the signal reproduction position, the disk is placed inside the holder. When a lifter for ejecting the lifter from the disk insertion port is provided, the lifter moves horizontally together with the holder, whereas a lifter drive member for raising and lowering the lifter is provided on the chassis side to raise and lower the lifter. Since only the movement is allowed, there is a problem that the connection structure between the lifter lifting member and the lifter becomes complicated.
[0006]
Accordingly, an object of the present invention is that in a disc player that feeds a disc to a recording / reproducing position in a vertical position, when the disc is inserted into the insertion slot in a vertical posture and pushed down, the disc is pushed down with an excessive force. Another object is to provide a disc player in which the disc is not deformed and the lifter lifting mechanism in the holder is not damaged, and the lifter lifting mechanism can be realized with a simple configuration.
[0007]
[Means for solving the problems]
A disc player according to the present invention includes:
A chassis (2) provided with a turntable (14) and a signal regeneration mechanism (15);
A holder (3) having a disk insertion opening (13) opening upward, supported by the chassis (2) so as to be able to reciprocate in the horizontal direction, and approaching and separating from the turntable (14);
A holder driving mechanism for reciprocally driving the holder (3) in the approaching and separating direction;
A lifter (5) disposed in the holder (3) so as to be movable up and down, and capable of receiving a vertically oriented disc (12) inserted from a disc insertion slot (13);
Lifter drive mechanism that lifts and lowers lifter (5) in holder (3)
The lifter drive mechanism includes a lifter drive slide (6) driven up and down by a drive mechanism (20) arranged in the chassis (2), and an end portion of the lifter drive slide (6). ) And a connection spring (60) connected to the end of the contact.
[0008]
In the disc player of the present invention, the holder (3) is installed in the open position farthest from the turntable (14) and the lifter (5) is installed in the uppermost position. The disc (12) is inserted into the disc insertion opening (13) in a vertical posture. As a result, the disk (12) is received by the lifter (5).
When the disk (12) is pushed down in this state, the driving mechanism (20) is activated and the lifter drive slide (6) is driven downward. Here, since the lifter drive slide (6) and the lifter (5) are connected to each other by the connection spring (60), the lifter (5) is lowered integrally with the lifter drive slide (6). A disk (12) is accommodated in the holder (3).
[0009]
In this case, even if the disk (12) is pushed down deeply with an excessive force, the lifter (5) moves relative to the lifter drive slide (6) in the downward direction by the extension of the connecting spring (60). Since the excessive force acting on the lifter (5) is absorbed by the connecting spring (60), the disk (12) is not deformed and the lifter drive mechanism is not damaged.
[0010]
Next, the holder drive mechanism operates, the holder (3) moves toward the turntable (14), and the disc (12) in the holder (3) is finally installed on the turntable (14). Will be.
When the holder (3) moves in the horizontal direction, the lifter (5) in the holder (3) also moves in the horizontal direction, whereas the lifter drive slide (6) moves toward the chassis (2). Installed and allowed to move up and down only, but the lifter (5) and lifter drive slide (6) are only connected by the connecting spring (60), so that the connecting spring (60) is extended. Thus, the horizontal movement of the lifter (5) with respect to the lifter drive slide (6) is allowed.
[0011]
Thereafter, the lifter (5) is slightly lowered and separated from the disk (12), so that the disk (12) can be freely rotated.
When the turntable (14) is rotationally driven in this state, the disk (12) rotates, and a signal is reproduced from the disk (12) by the signal reproduction mechanism (15).
[0012]
In a specific configuration, the end of the lifter drive slide (6) and the end of the lifter (5) are in sliding contact with each other so as to be able to move relative to each other along the moving direction of the holder (3). ).
Therefore, in the process in which the lifter (5) moves up and down, the end of the lifter drive slide (6) and the end of the lifter (5) are in contact with each other and move together. In the process of moving the holder (3) in the horizontal direction, the end of the lifter (5) slides with respect to the end of the lifter drive slide (6) due to the extension of the connecting spring (60). The lifter (5) moves in the horizontal direction.
[0013]
In a specific configuration, the holder (3) is attached with a chuck mechanism for chucking the disk (12) between the holder (3) and the turntable (14).
Therefore, the holder (3) moves toward the turntable (14), and the disc (12) in the holder (3) is placed on the turntable (14), and the turntable (14) and the chuck mechanism During this time, the disk (12) is chucked.
[0014]
In a specific configuration, the driving mechanism (20) includes a cam gear (4) having first and second cam grooves (41) and (42), and a motor (21) that rotationally drives the cam gear (4). The cam follower (71) provided in the input part of the holder drive mechanism is engaged with the first cam groove (41) of the cam gear (4), and the second cam groove (42) of the cam gear (4) is provided. ) Is engaged with a cam follower (52) provided at the input portion of the lifter drive mechanism.
Accordingly, when the cam gear (4) is rotationally driven by the motor (21), the rotation of the cam gear (4) is transmitted to both or one of the holder driving mechanism and the lifter driving mechanism, so that the holder (3) And the lifter 5 is moved up and down.
[0015]
【The invention's effect】
According to the disc player of the present invention, when the disc is inserted into the holder insertion slot in a vertical posture and pushed down, even if the disc is pushed deeply with an excessive force, the disc is deformed or the lifter lifting mechanism is damaged. I won't receive it. However, the lifter lifting mechanism can be realized with a simple configuration in which the lifter and the lifter drive slide are connected to each other by a connecting spring.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
overall structure
1 (a) and 1 (b) show a thin television receiver (1) incorporating a disc player (11) according to the present invention. The television receiver (1) is configured by arranging a pair of speaker devices on both sides of a receiver body having a screen (10), and the front panel of the cabinet (16) of one speaker device. The disc player (11) of the present invention is provided so as to be exposed from the lower part of (17).
[0017]
The disc player (11) includes a holder (3) to hold the disc (12), and the holder (3) is in a closed state in which it is retracted rearward from the front panel (17) as shown in FIG. As shown in FIG. 5B, the reciprocating movement is possible back and forth between the open state protruding forward from the front panel 17.
When the holder (3) is moved to the open state as shown in FIG. 1 (b), the disc insertion opening (13) opened on the upper surface of the holder (3) is exposed, and the disc (12) is inserted. It becomes possible.
Then, when the holder (3) containing the disk (12) is moved to the closed position as shown in FIG. 1 (a), the disk (12) in the holder (3) is set on a turntable (not shown). Then, the signal is reproduced by a signal reproduction mechanism (not shown).
[0018]
As shown in FIGS. 2 and 3, the disc player (11) includes a box-shaped chassis (2) having a small depth dimension, and the holder (3) can be reciprocated in the front-rear direction with respect to the chassis (2). It is attached.
Inside the holder (3), as shown in FIG. 4, a lifter (5) for receiving the disk (12) in a vertical posture is arranged so as to be able to move up and down. As shown in FIG. 16, the lifter (5) is provided with an arc-shaped disc receiving portion (56).
[0019]
As shown in FIG. 5, a driving mechanism (20) for rotating the cam gear (4) with a motor (not shown) as a power source is disposed on the rear surface of the chassis (2).
The cam gear (4) has two cam grooves (41) and (42) extending spirally on the surface on the chassis (2) side as shown in FIG. 41) The reciprocating drive of the holder (3) and the lift drive of the lifter (5) are performed by the cam action of (42).
[0020]
As shown in FIG. 6, the chassis (2) has a turntable (14) for rotating the disk (12) and a signal reproduction for reproducing a signal from the disk (12) on the turntable (14). Mechanism (15) is deployed.
[0021]
Holder drive mechanism
In the chassis (2), as shown in FIG. 12, two holder guide grooves (23) (23) extending in the front-rear direction are formed in the upper wall and the lower wall, respectively. As shown in FIG. 6, special screws (31) are respectively inserted into the holder guide grooves (23), (23), (23), and (23), and the tips thereof are screwed into the holder (3). .
Thus, the holder (3) is supported so as to be reciprocally movable in the front-rear direction with respect to the chassis (2).
[0022]
Further, a cam slide (8) shown in FIGS. 7 and 18 is arranged between the chassis (2) and the holder (3), and the cam slide (8) is horizontally oriented with respect to the chassis (2). The reciprocating movement is attached.
The cam slide (8) has two cam grooves (81) (81) extending in an oblique direction on the upper wall and the lower wall of the cam slide (8), and the special screw (31) is provided in each cam groove (81). It penetrates and the front-end | tip part is screwed into the holder (3) as mentioned above.
Therefore, when the cam slide (8) is driven left and right, the holder (3) is driven back and forth by the cam action of the cam groove (81) of the cam slide (8).
[0023]
A holder drive slide (7) shown in FIGS. 8 and 17 is attached to the chassis (2) so as to be able to reciprocate along the chassis (2) on the surface facing the cam gear (4). As shown in FIG. 17, the holder drive slide (7) is provided with a cam follower (71), projecting pieces (74) and (75), and a spring hooking piece (73). The cam follower (71) Is engaged with the first cam groove (41) of the cam gear (4) as shown in FIG. Further, the projecting pieces (74) and (75) are slidably engaged with guide grooves (not shown) provided in the chassis, and the reciprocating movement of the holder drive slide (7) is guided as described above. One end of a connection spring (72) is connected to the spring hook (73), and the other end of the connection spring (72) is protruded from the cam slide (8) as shown in FIG. ).
[0024]
Therefore, as shown in FIGS. 23 (a), (b), (c) and FIGS. 24 (a), (b), and (c), when the holder driving slide (7) is reciprocated left and right by the rotation of the cam gear (4). The cam slide (8) connected to the holder drive slide (7) via the connection spring (72) reciprocates integrally with the holder drive slide (7). The holder (3) is driven back and forth by the cam action of the cam groove (81) of the holder drive slide (7).
[0025]
Lifter drive mechanism
As shown in FIG. 9, a pair of upper and lower screws (54) and (54) are screwed to the lifter (5), and the heads of the screws (54) and (54) are attached to holders (see FIG. 2). 3) The lifter guide groove (32) opened in the vertical direction is engaged to guide the lifter (5) to move up and down.
As shown in FIG. 9, the lifter drive slide (6) is engaged with the side wall of the chassis (2) so as to be movable up and down. As shown in FIG. 15, the lifter drive slide (6) is provided with a tongue piece (62), projecting pieces (63) and (64) and a spring hook piece (65), and a long hole extending in the front-rear direction. (61) is established, and the projecting pieces (63) and (64) are slidably engaged with guide grooves (not shown) provided on the side walls of the chassis so that the lifter drive slide (6) is Elevation is guided.
[0026]
Further, as shown in FIG. 9, a connecting spring (60) is provided between a spring hook (55) projecting from the lower end of the lifter (5) and a spring hook (65) of the lifter drive slide (6). As shown in FIG. 11, the upper end surface (66) of the lifter (5) is pressed against the tongue piece (62) of the lifter drive slide (6) by the urging force of the connecting spring (60). Yes.
[0027]
Further, as shown in FIG. 9, the chassis (2) is provided with a lifter drive lever (50), and the base end of the lifter drive lever (50) projects from the chassis (2). The lifter drive lever (50) is pivotally supported by the shaft so as to be swingable in a vertical plane.
As shown in FIGS. 10 and 11, a cam follower (52) projects from the intermediate portion of the lifter drive lever (50), and the cam follower (52) is connected to the second cam groove (42) of the cam gear (4). Is engaged. Further, a drive pin (53) projects from the tip of the lifter drive lever (50), and the drive pin (53) is slidably fitted into the elongated hole (61) of the lifter drive slide (6). Yes.
Accordingly, the lifter drive lever (50) is driven to swing by the rotation of the cam gear (4), whereby the lifter drive slide (6) is driven up and down. The lifter (5) moves up and down as the lifter drive slide (6) moves up and down.
[0028]
Since the lifter drive slide (6) is disposed on the chassis (2) and the lifter (5) is disposed on the holder (3), for example, the lifter drive is performed in the process of moving the holder (3) forward. The slide (6) and the lifter (5) need to move relative to each other in the horizontal direction. As shown in FIG. 11, the lifter drive slide (6) and the lifter (5) are connected to each other by a connecting spring (60). Since the upper end surface (66) of the lifter (5) is merely in sliding contact with the tongue piece (62) of the lifter drive slide (6), the connecting spring (60) is extended so that the relative movement of the two in the horizontal direction is increased. Is acceptable.
[0029]
Prime mover
As shown in FIG. 11, the driving mechanism (20) connects the output shaft of the motor (21), which is a power source, to the gear portion of the cam gear (4) via a speed reduction mechanism (22) consisting of a gear and a pulley. Configured.
As shown in FIG. 14, the first cam groove (41) of the cam gear (4) includes a cam groove portion A for holding the holder (3) in the open completion position, and the holder (3) between the open position and the closed position. And a cam groove B for holding the holder (3) in the closed position. The second cam groove (42) of the cam gear (4) includes a cam groove portion D for holding the lifter (5) at the rising end (ejecting completion position), and the lifter (5) immediately before the rising end and the lowering end. A cam groove E for driving up and down between the position (chucking position), a cam groove F for holding the lifter (5) at the chucking position, and a lifter (5) at the chucking position and the lower end ( And a cam groove portion H for holding the lifter (5) at the descending end.
[0030]
Chuck mechanism
The holder (3) has an opening (34) as shown in FIGS. 7 and 13, and the surface of the holder (3) closes the opening (34) as shown in FIG. 30) is fixed.
A chuck pulley assembly (9) is provided in the holder (3) through the opening (34), and is attached to the holder (3) so as to be rotatable with slight play in the radial direction and the rotation axis direction.
[0031]
As shown in FIG. 20, the chuck pulley assembly (9) is configured by engaging a chuck pulley (91) and a chuck disk (92) with each other. As shown in FIG. 21, the chuck pulley (91) is an integrally molded product of resin composed of a cylindrical portion (91a) and a disc portion (91b), and the chuck disk (92) is an integrally molded product of an iron plate. A ring-shaped magnet (93) is sandwiched between the chuck pulley (91) and the chuck disk (92).
The chuck disk (92) is provided with a plurality of through holes (94) at the portion facing the magnet (93), and the magnetic lines of force radiated from the magnet (93) are leaked from the through holes (94). Thus, it is possible to act on the iron plate (30) shown in FIG.
In addition, the chuck pulley (91) has wedge-shaped ribs (95) that are inclined with respect to the rotation axis of the chuck pulley (91) across the cylindrical portion (91a) and the disc portion (91b). The diameter of the circumscribed circle of the plurality of ribs (95) coincides with the inner diameter of the opening (34) of the holder (3) as shown in FIG.
[0032]
In the chuck mechanism, when the holder (3) is retracted to the chuck position as shown in FIG. 22 (a), the magnetic force of the magnet (93) of the chuck pulley assembly (9) is greater than that of the iron plate (30). The chuck pulley assembly (9) is attracted by the turntable (14), acting strongly on the metal part of 14). As a result, the chuck pulley assembly (9) is displaced in a direction away from the iron plate (30) of the holder (3), and is free to rotate with slight play in the rotational radius direction and the rotational axis direction with respect to the holder (3). It becomes a state.
In this state, the chuck pulley assembly (9) presses the disk (12) toward the turntable (14) by the magnetic force of the magnet (93), whereby the disk (12) is brought into contact with the chuck pulley assembly (9). It will be sandwiched between turntables (14).
Accordingly, when the turntable (14) rotates, the disk (12) and the chuck pulley assembly (9) rotate together with the turntable (14). This makes it possible to reproduce signals from the disk (12).
[0033]
After the signal reproduction, when the holder (3) is separated from the turntable (14) as shown in FIG. 22 (b) in order to eject the disk (12), the chuck pulley assembly (9) is turned by the movement of the holder (3). Pulled away from the table (14). As a result, the magnetic force of the magnet (93) of the chuck pulley assembly (9) acts on the iron plate (30) more strongly than the turntable (14), and the chuck pulley assembly (9) is attracted by the iron plate (30). The
At this time, the inclined surface of the rib (95) of the chuck pulley assembly (9) is in sliding contact with the inner peripheral edge of the opening (34) of the holder (3), and the chuck pulley assembly (9) is The rotation center axis coincides with the rotation center axis of the turntable (14), and is held by the holder (3) in this state.
[0034]
Thereafter, as shown in FIG. 22 (c), when the holder (3) further moves away from the turntable (14), the disk (12) is moved from the turntable (14) as the holder (3) moves. It will be separated and lifted by the lifter (5) waiting below.
At this time, the chuck pulley assembly (9) is held by the holder (3) at a position separated from the disk (12), so there is no possibility that the disk (12) interferes with the chuck pulley assembly (9).
[0035]
Further, since the chuck pulley assembly (9) is held at a position where the center axis coincides with the turntable (14), the chuck pulley assembly (9) is turned as shown in FIG. When sucked by the table (14), the chuck pulley assembly (9) moves in the horizontal direction toward the turntable (14) in a vertical posture without sliding against the inner peripheral surface of the opening (34) of the holder (3). Then, it engages with the turntable (14) with the posture as it is.
Therefore, a smooth chucking operation is realized.
[0036]
Mode transition
As shown in FIGS. 2 and 3, the chassis (2) has a close switch (25) for detecting a state in which the holder (3) has reached the closed position, and a state in which the lifter (5) has reached the lower end. A chuck switch (26) is installed to detect this. The holder (3) is provided with an eject switch (33) for detecting a state in which the lifter (5) has reached the rising end.
These switches (25), (26), (33) are connected to input ports of a microcomputer (not shown). Based on the on / off of each switch, the motor (21) of the driving mechanism (20) is connected. The rotation is controlled.
[0037]
25 to 29 show the transition of the operation mode from the disk eject completion state to the play state.
In the disc ejection completion state shown in FIG. 25, the holder (3) protrudes forward and the lifter (5) is installed at the rising end, and the disc (12 ) Is released and the hand is released, the disc (12) is slightly dropped by its own weight and is then received by the lifter (5).
[0038]
When the disk (12) is slightly pushed down from this state, the lifter (5) is lowered against the connecting spring (60) shown in FIG. 11, and the eject switch (33) is turned off accordingly. As a result, the motor (21) of the driving mechanism (20) is started, and the cam gear (4) is rotationally driven counterclockwise. The lifter drive lever (50) is rotated clockwise by the rotation of the cam gear (4), and the lifter drive slide (6) is lowered accordingly.
As the lifter drive slide (6) is lowered, the lifter (5) is lowered as shown in FIG. 26, and the disk (12) on the lifter (5) is drawn into the holder (3).
[0039]
Even when an excessive force is applied to the disk (12) when the disk (12) is pushed down, the force is absorbed by the extension of the connecting spring (60), so the disk (12) is deformed, There is no risk of damage to the lifter drive mechanism.
[0040]
When the cam gear (4) further rotates from the state of FIG. 26, the lifter (5) continues to descend as shown in FIG. 27, and the holder (3) starts to retract from the open position to the closed position. .
In the chuck completion state shown in FIG. 28, the lifter (5) is lowered to the chuck position, and the holder (3) reaches the close position. As a result, the close switch (25) is turned on, and the close completion of the holder (3) is detected.
Thereafter, in the play state shown in FIG. 29, the lifter (5) is further lowered and detached from the chucked disk (12). At this point, the chuck switch (26) is turned on. As a result, the turntable (14) is driven to rotate, and the reproduction of the disk (12) by the signal reproduction mechanism (15) is started.
[0041]
When the disk (12) is ejected after the disk (12) is reproduced, the cam gear (4) is driven to rotate clockwise by the motor (21) of the driving mechanism (20). As a result, the lifter (5) ascends to the chuck position as shown in FIG. 28 and receives the disk (12). Subsequently, as shown in FIG. 27, the holder (3) starts to move from the closed position to the open position, and then the lifter (5) starts to rise.
As a result, the lifter (5) reaches the open position as shown in FIG. The lifter (5) continues to rise, and finally, as shown in FIG. 25, the lifter (5) reaches the rising end, and the ejection of the disk (12) is completed.
[0042]
As shown in FIGS. 1A and 1B, the disc player 11 of the present invention is mounted so as to be exposed from the front panel 17 of the cabinet 16 of the television receiver 1. 3) Open position (FIG. 1 (b)) where the disc insertion slot (13) is advanced to the front of the front panel (17), and the disc insertion slot (13) is retracted to the rear of the front panel (17). Between the closed positions (FIG. 1 (a)), the disc insertion slot (13) is projected and retracted from the front panel (17) by reciprocating in the horizontal direction, so that the disc player (11 in the cabinet (16)) Even if another mechanism is provided at a position above (), there is no problem in the operation of the disc player (11). Therefore, the disc player (11) can be arranged at the center or lower part of the front panel (17).
Also, since the disk (12) is housed in the holder (3) in a vertical posture parallel to the front panel (17), the depth dimension of the cabinet (16) is not restricted by the diameter of the disk (12). The cabinet (16) can be made thinner.
[0043]
Further, the lifter drive mechanism employs a structure in which the lifter drive slide (6) and the lifter (5) are simply connected to each other by the connection spring (60). In addition, the lifter drive mechanism can be prevented from being damaged, and the lifter drive slide (6) and the lifter (5) can be moved relative to each other.
[0044]
Also, the disc chuck mechanism is a chuck for the disc (12) held in the holder (3) only by reciprocating the holder (3) in a direction approaching and separating from the turntable (14). Since the chuck is released, the configuration is extremely simple.
[0045]
Further, in the disc chucking operation, the chuck pulley assembly (9) is engaged with the turntable (14) in a state where the rotation center axis thereof coincides with the rotation center axis of the turntable (14). Operation is realized.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view showing a holder moving operation in a television receiver incorporating a disc player according to the present invention.
FIG. 2 is a perspective view showing a holder closed state of the disc player according to the present invention.
FIG. 3 is a perspective view showing a holder open state of the disc player.
FIG. 4 is a perspective view of the same state with the holder omitted.
FIG. 5 is a perspective view of the disc player as seen from the back side.
FIG. 6 is a perspective view showing component arrangement on a chassis.
FIG. 7 is a perspective view showing an engaged state of the cam slide with respect to the holder.
FIG. 8 is a perspective view showing a power transmission path from a cam gear to a cam slide.
FIG. 9 is a perspective view showing a power transmission path from the lifter drive lever on the chassis to the lifter.
FIG. 10 is a perspective view showing a connection structure between a cam gear and a lifter.
FIG. 11 is a perspective view showing a power transmission path from a driving mechanism to a lifter.
FIG. 12 is a perspective view of a chassis.
FIG. 13 is a perspective view of a holder.
FIG. 14 is a front view of the cam gear.
FIG. 15 is a perspective view of a lifter drive slide.
FIG. 16 is a perspective view of a lifter.
FIG. 17 is a perspective view of a holder drive slide.
FIG. 18 is a perspective view of a cam slide.
FIG. 19 is a cross-sectional view of the chuck pulley assembly.
FIG. 20 is a perspective view of an iron plate and chuck pulley assembly.
FIG. 21 is an exploded perspective view of the chuck pulley assembly.
FIG. 22 is a series of cross-sectional views showing a chuck releasing operation.
FIG. 23 is a set of diagrams showing a closed state of the holder.
FIG. 24 is a set of diagrams showing an open state of the holder.
FIG. 25 is a perspective view showing an ejected state of the disc player.
FIG. 26 is a perspective view of the disc player in the middle of lowering the lifter.
FIG. 27 is a perspective view of the disc player in the middle of retracting the holder.
FIG. 28 is a perspective view of the disc player in a closed state of the holder.
FIG. 29 is a perspective view of the disc player in a play state.
[Explanation of symbols]
(1) Television receiver
(10) Screen
(16) Cabinet
(17) Front panel
(11) Disc player
(13) Disc insertion slot
(2) Chassis
(20) Driving mechanism
(3) Holder
(30) Iron plate
(4) Cam gear
(41) First cam groove
(42) Second cam groove
(5) Lifter
(50) Lifter drive lever
(52) Cam Followers
(56) Disc receiver
(6) Lifter drive slide
(60) Connecting spring
(7) Holder drive slide
(71) Cam Followers
(72) Connecting spring
(8) Cam slide
(81) Cam groove
(9) Chuck pulley assembly
(91) Chuck pulley
(92) Chuck disk
(93) Magnet
(94) Through hole
(95) Ribs

Claims (4)

In a disc player that reproduces a signal recorded on a disc,
A chassis (2) provided with a turntable (14) and a signal regeneration mechanism (15);
A holder (3) having a disk insertion slot (13) opening upward, supported by the chassis (2) so as to be reciprocally movable in the horizontal direction, and approaching and separating from the turntable (14);
A holder driving mechanism for reciprocatingly driving the holder (3) in the approaching and separating direction;
A lifter (5) disposed in the holder (3) so as to be movable up and down, and capable of receiving a vertically oriented disc (12) inserted from the disc insertion slot (13);
A lifter drive mechanism for driving the lifter (5) up and down in the holder (3). And a connecting spring (60) for connecting the end of the lifter drive slide (6) to the end of the lifter (5). The end of the lifter drive slide (6) and the end of the lifter (5) are in sliding contact with each other so as to be able to move relative to each other along the direction of movement of the holder (3), and by the biasing force of the connecting spring (60). The disc player according to claim 1, which is press-contacted. The disc player according to claim 1 or 2, wherein a chuck mechanism for chucking the disc (12) between the holder (3) and the turntable (14) is attached. The driving mechanism (20) includes a cam gear (4) having first and second cam grooves (41) and (42), and a motor (21) for rotationally driving the cam gear (4). The first cam groove (41) is engaged with a cam follower (71) provided in the input portion of the holder drive mechanism, and the second cam groove (42) of the cam gear (4) is engaged with a lifter drive mechanism. The disc player according to any one of claims 1 to 3, wherein a cam follower (52) provided in the input section is engaged.

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