JPH063660B2 - Disc loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION “Industrial field of application” The present invention relates to a disc player or the like in which a disc for converting music or video into a digital signal and recording the disc is mounted on a turntable, and information is recorded on or reproduced from the disc by a pickup. Disc loading device

"Prior art" Conventionally, a leather disc with a diameter of 30 cm or a diameter of 12 cm
There was a technology that puts compact discs, etc., on the tray and puts them in and out of the turntable position.

[Problems to be Solved by the Invention] The above-mentioned conventional technology requires a large space for moving the tray up and down in a structure in which the tray is moved up and down or the disk is chucked by a disk holder or a disk holder. Since it was necessary to provide a mechanism for moving the chuck plate up and down, we developed a mechanism that raises and lowers the turntable relative to the tray and the chuck plate.However, the rack table that moves the tray in and out is also used to move the turntable up and down. Therefore, there is a problem in that it is difficult to simplify the mounting structure of the rack gear or the like provided on the tray and reduce the manufacturing cost.

"Means for Solving Problems" However, the present invention provides a tray for loading and unloading a disc in a disc loading device provided with a tray for loading and unloading a disc and a slide plate for chucking the disc. In a disc loading device provided with a slide plate for chucking the disc, a drive gear that meshes a rack gear of the tray and a rack gear of the slide plate, and a drive gear that selectively selects a rack gear of the tray and a rack gear of the slide plate. And a switching plate that meshes with.

[Operation] Therefore, the vertical movement of the tray is not required, and the disk loading / unloading structure can be simply configured, and since the tray and the slide plate are driven by the rack gears respectively provided on the trays, the mounting and driving structure of the rack gears and the like provided on the trays can be performed. And the manufacturing cost can be easily reduced.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. First
FIG. 4 is an explanatory plan view of a main part, FIG. 2 is a plan view showing an outer appearance of a disc player, FIG. 3 is a plan view showing an internal structure, FIG. 4 is a side view of the same, FIG. The figure is a cross-sectional rear view. The main chassis (2) is fixed inside the box-shaped case (1) which is a disc player cabinet, and as shown in FIG. A motor mounting chassis (3) is installed, and the turntable motor is mounted on the bottom side of this mounting chassis (3) via the motor holder (4).
(5) is fixed, the output shaft (6) of the motor (5) is projected to the upper surface side of the mounting chassis (3), and a turntable (7) is provided at the upper end.

Further, as shown in FIG. 3, the pedestal (9) for mounting the leather pickup (8) is provided on the pickup mounting chassis (11) via the columnar rail (10), and the fulcrum shaft (12) is attached to the chassis (11). And a fulcrum shaft (12) is supported by a bearing (13) provided on the motor mounting chassis (3). In addition, the tilt motor (14) that adjusts the angle of the pickup (8) and the worm
(15) and the worm wheel (16) through the motor (14)
A screw shaft (17) to be connected to the main chassis (2) via a mounting frame (18), and a hinge mechanism (19) consisting of a nut body (19a) and a hinge arm (19b). Connect the screw shaft (17) to the rear end of the pickup mounting chassis (11), and swing the pickup mounting chassis (11) up and down by controlling the lifting motor (14) to raise and lower the pickup (8) and change the angle. It is configured to correct the distortion of the disc.

Further, the pickup moving rack gear (2
0) is fixed and the pickup mounting chassis
Attach the pickup motor (21) to (11) and drive gear
The rack gear (20) and the motor (21) are connected via (22), and the pickup (8) is reciprocally slid along the rail (10) by forward / reverse control of the motor (21). ing.

Furthermore, as shown in Fig. 2, a leather disc with a diameter of 30 cm
A disk mounting surface (24) on which (23) is mounted, a disk mounting surface (26) on which a small diameter leather disk (25) having a diameter of 20 cm is mounted,
A tray (29) for forming a disc mounting surface (28) on which a compact disc (27) having a diameter of 12 cm is placed and a multi-stage on the same axis is provided, and a guide pin (30) is provided as shown in FIG.
The left and right slide plates (32a) and (32b) are slidably supported by the main chassis (2) through the guide groove (31). Then, as shown in FIG. 5, the guide rails on both sides of the chassis (2)
Insert the (33) (33) and the guide roller (34) into the guide groove (29
a) It is engaged with (29a) and (29b), and the tray (29) is slidably supported above the slide plates (32a) (32b).

Also, a chuck plate mounting chassis (35) is suspended on the upper surface side of the main chassis (2), and a chuck plate (37) is loosely fitted and supported on the lower surface side of the central portion of the mounting chassis (35) via a holder (36). , A chuck plate just above the turntable (7)
(37) is placed and when the motor mounting chassis (3) is raised, the upper side of the turntable (7) is pressed against the chuck plate (37) and placed on the tray (29). ) (27) is fixedly supported on the turntable (7).

Further, as shown in FIG. 3, FIG. 6 and FIG. 7, the rack rack gear (3) for extending and retracting the discs (23), (25) and (27) is arranged.
8) is integrally formed on the lower surface side of the tray (29), and the loading motor (40) for loading / unloading the tray (29) is fixedly installed on the lower surface side of the main chassis (2) via the motor mounting bracket (39). The drive gear (44) is interlockingly connected to the motor (40) through the pulleys (41) (42) and the belt (43), and the drive gear (44) is meshed with the rack gear (38) to move the motor.
The tray (29) is configured to slide in and out by the (40).

Further, as shown in FIGS. 3, 5 and 6, tray stoppers (45) (45) are integrally formed on both sides of the main chassis (2) and can be freely lowered on both sides of the insertion end of the tray (29). The ridge body (46) (46) is integrally formed, and the ridge body (46) is stopper (45).
The tray (29) is configured to come into contact with and to prevent the tray (29) from coming out and dropping out.

In addition, as shown in Fig. 3, the spindle (4
7) pivotally supports the middle of the swing arm (48) and slides left and right slide plates on both ends of the arm (48) via pins (49) (49).
A switching plate (50) is provided for connecting the (32a) and (32b) and sliding the tray (29) in the left-right direction substantially orthogonal to the moving direction.

Further, as shown in FIG. 1, FIG. 8 and FIG. 9, an elevating rack gear (51) that meshes with the drive gear (44) is integrally formed on the right slide plate (32b), and the tray (29) can be moved in and out. The lifting rack gear (51) is arranged so as to face the rack gear (38), and the switching plate (50) is slidably attached to the upper surface of the main chassis (2) through the guide pin (52) and the guide groove (53). And the switching plate (50) between the upper surface of the right slide plate (32b) and the lower surface of the tray (29) as shown in FIG.
A relay rack gear (54) that meshes with (44) is integrally formed on the switching plate (50), and the rack gears (38), (51) and (54) are meshed with the drive gear (44), and the tray (29) and the right Slide plate (32b)
Also, the switching plate (50) is configured to be slidably driven.

In addition, a long groove (5) which is a guide body for engaging or disengaging the drive gear (44) with respect to the rack rack (38) of the tray (29).
5) is formed on the lower surface of the tray (29), and the rack gear (38) is set in and out as long as necessary to insert and remove the disks (23) (25) (27).
Of the long groove (5) substantially parallel to the rack gear (38).
5) Extend and connect the tray as shown in Fig. 7.
(29) At the end of the long groove (55) on the front side, an inclined groove (55a) that is inclined inward by about 45 degrees is formed, and the tray (29) is positioned by extending in the left-right direction. The positioning groove (55b), which is a position holding portion, is continuously provided to the inclined groove (55a).

On the other hand, a long groove (56) which is a guide for engaging or disengaging the drive gear (44) with respect to the lifting rack gear (51) of the slide plate (32b) is formed on the upper surface of the slide plate (32b), and the turntable (7) is formed. The elevating rack gear (51) is extended to the length required to move the rack up and down, and the long groove (56) is extended substantially parallel to the rack gear (51), and the tray (29) front side A guide groove is formed at the end of the long groove (56) by forming an inclined groove (56a) inclined outward at about 45 degrees and extending in the left-right direction.
(56b) is connected to the inclined groove (56a).

Further, a linking boss (57) slidably fitted in the long groove (55) of the tray (29) is fixedly mounted on the upper surface of the switching plate (50), and the long groove (56) of the slide plate (32b) is provided. A linking boss (58) that is slidably fitted is fixed to the lower surface of the switching plate (50) .The slant groove (55) (56) of the tray (29) and the slide plate (32b) ( The relay rack gear (54) of the switching plate (50) is extended by the length required for each boss (57) (58) to pass through 55a (56a).

When inserting the tray (29) into the case (1) of the machine, the rack gear (3) that is in mesh with the drive gear (44) is engaged.
8) in the direction of arrow (a) in Fig. 1 to move the rack gear in and out.
When the engagement of (38) is completed, the engagement of the relay rack gear (54) is started and moved in the direction of the arrow (b), and
(38) is separated, and when the intermediary rack gear (54) is completely engaged, the elevator rack gear (51) is engaged and moved in the direction of the arrow (c) to slide the slide plates (32a, 32b). The turntable (7) is moved upward to move the turntable (7) downward, and the loading motor (40) is reversely controlled to rotate the drive gear (44) in the reverse direction. ) Is configured to leave.

Further, as shown in FIG. 3, FIG. 6, FIG. 10 and FIG. 11, a vertical movement pin is provided on both outer surfaces of the motor mounting chassis (3).
(59a) (59b) (59c) are fixed and slide plates (32a) (3
2b) with guide grooves (60a) (60b) (60c)
Vertical guide groove (60d) is formed in (2), and the pins (59a) (59b)
Insert the (59c) into the guide grooves (60a) (60b) (60c) (60d) and use the pins (59a) (59b) (59c) to mount the motor mounting chassis (3).
The turntable (7) is mounted so that it can move up and down in a substantially horizontal state, and the disk (23) (25) (27) is chucked by the raising motion of the turntable (7). I am configuring.

Also, the sliding pins (61) (61) are fixedly mounted on the main chassis (2), and the sliding grooves (62) (62) are formed on the slide plates (32a) (32b) to secure the pins (61). Slide plate (32a) to engage with groove (62)
The tray (32b) is slidably supported in the tray (29) in and out direction.

This embodiment is constructed as described above, and one of the disks (23), (25) and (27) is placed on the tray (29) with the tray (29) being pulled out as shown in FIG. At this time, since the rack gear (38) of the tray (29) meshes with the drive gear (44), the tray (29) is actuated by the operation of the loading motor (40).
When the entry and exit rack gears (38) are engaged, the tray is guided by the inclined groove (55a) and the boss (57).
The switching plate (50) slides to the left in conjunction with (29) to start meshing with the relay rack gear (54).
By sliding the switching plate (50) to the left with 4), the in / out lag gear (38) separates from the drive gear (44), the boss (57) moves to the positioning groove (55b), and the tray ( 29)
Is fixedly supported at the entry completion position. Further, when the switching plate (50) further moves to the left and the meshing of the relay rack gear (54) ends, the inclined groove (56a) and the boss (58) guide the switching plate (50) to the right. The slide plate (32b) slides toward the front of the case (1) of the unit to start the engagement of the lifting rack gear (51) .The switching plate (50) is supported at the position moved to the left and Left and right slide plates depending on the drive gear (44)
Slide the (32a) and (32b) in the tray (29) in / out direction to raise the motor mounting chassis (3) and raise the turntable (7) to raise the discs (23) (25) on the top of the tray (29). ) (27) is held between the turntable (7) and the chuck plate (37) .After this chucking operation, the discs (23), (25) and (27) are rotated and the pickup (8) is slid. , Disk (2
3) Read the information in (25) and (27) and reproduce.

When the reproduction of the discs (23) (25) (27) is completed or the discs (23) (25) (27) are replaced, the loading motor (40) is reversely controlled to drive the drive gear (44). The reverse operation is performed by reversing the rotation of the turntable (7) by sliding the slide plates (32a) (32b) first.
Lowering and moving the switching plate (50) to the right to engage the rack rack (38) with the drive gear (44) and pull out the tray (29) to the outside of the front of the case (1). Is.

Further, when the motor mounting chassis (3) moves up and down in a substantially horizontal state, the pickup mounting chassis (11) swings up and down in conjunction with the chassis (3) to pick up the pickup (8).
Is moved to the ascending operation position or the descending standby position.

"Effects of the Invention" As is apparent from the above-described examples, the present invention provides a disk (23)
(25) A tray (29) for loading and unloading (27) and a slide plate (3 for chucking the discs (23), (25), (27).
2a) and (32b), a tray (2) for loading and withdrawing the disks (23), (25) and (27)
9) and a slide plate (32a) (32b) for chucking the discs (23) (25) (27), a rack gear (38) and a slide plate (38) of the tray (29). Drive gear (44) meshing with rack gear (51) of 32b), rack gear (38) of tray (29) and rack gear (51) of slide plate (32b) are selectively meshed with drive gear (44). With a switching plate (50) that allows
The vertical movement of (29) is not required, and the disk (23) (25) (27) loading and unloading structure can be simply configured, and the rack gear (provided with the tray (29) and the slide plates (32a) (32b) respectively ( 38) (51)
It is driven by a rack gear (3
It has practical effects such as easy installation of 8) and simplification of drive structure and reduction of manufacturing cost.

[Brief description of drawings]

FIG. 1 is an explanatory plan view of an essential part showing an embodiment of the present invention, FIG. 2 is a plan view showing the appearance of a disc player, FIG. 3 is a plan view showing the internal structure, and FIG. 4 is a side view of the same. FIG. 5 is a sectional front view, FIG. 6 is a sectional rear view, FIG. 7 is a plan view of the tray, FIGS. 8 and 9 are partial explanatory views, FIG. 10 and FIG.
FIG. 1 is an explanatory diagram of the left and right slide plates. (23) (25) (27)… Disc (29)… Tray (32a) (32b)… Slide plate (38)… Entry / Exit rack gear (44)… Drive gear (51)… Lift rack gear

Claims (1)

[Claims] 1. A tray (29) for loading and unloading discs (23), (25), (27), and slide plates (32a) (32b) for chucking the discs (23), (25), (27). In the disc loading device including the drive gear (44) for meshing the rack gear (38) of the tray (29) and the rack gear (51) of the slide plate (32b), and the rack gear (3 of the tray (29).
8) and a switching plate (50) for selectively engaging the rack gear (51) of the slide plate (32b) with the drive gear (44).