JPH0527852U - Disk player loading mechanism - Google Patents

Abstract

(57) [Abstract] [Purpose] A loading mechanism of a disc player that moves a tray on which a disc is placed to a standby position or a reproduction position, and enables a simplification and downsizing of the structure and a reduction in cost. It is intended to provide. A loading mechanism of a disc player for moving a tray on which a disc is placed from a standby position to a playback position, a drive gear is provided at one end of a sliding body provided in the loading mechanism, and the drive gear is formed on the tray. The tray is moved by meshing with the rack gear.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a disc player that is loaded with an optical disc or a compact disc for recording and / or reproducing, and more specifically, a loading mechanism for a disc player that accommodates a plurality of discs and selects and ejects a desired disc. It is related to. The disc player to which the present invention can be applied includes a read-only disc player and a read / write disc player, and the disc used in the disc player has various types such as an optical type, a magneto-optical type, and an electrostatic type. There is. In addition, the contents recorded on the disc range from those for home use such as audiovisual images to those for industrial use such as external recording of computer digital signals, and the disc diameters are 6.5 cm, 8 cm, 12 cm, 20 cm, There are various things such as 30 cm.

[0002]

[Prior Art]

 Conventionally, there has been a technique in which a plurality of discs are placed on trays and stored at a standby position, and a desired disc is selected and moved to a reproduction position of a turntable.

For example, as an example thereof, there is a loading mechanism ((a) to (c) are plan views showing the operating state thereof) of the disc player (P1) shown in FIG. According to this, from among the plurality of trays (91) contained in the tray case (92), one tray (91) brought to the position of the rack member (95) is pulled by the locking claw (96). It hangs and takes out.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional disc player (P1), since the tray (91) is pulled out to the predetermined loading device by the sliding stroke itself of the rack member (95), the tray (91) is pulled. Since the rack member (95) to be hung is extremely long and large, there is a problem that the structure of the loading mechanism cannot be simplified and downsized, and the cost cannot be reduced easily.

Therefore, the present invention has been made in view of the above circumstances, and is a loading mechanism of a disc player for moving a tray on which a disc is placed from a standby position to a reproduction position. Another object of the present invention is to provide a loading mechanism that enables cost reduction.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a loading mechanism for a disc player that moves a tray on which a disc is placed from a standby position to a playback position, and a drive gear is provided at one end of a sliding body provided in the loading mechanism. The drive gear is configured to move the tray by meshing with a rack gear formed on the tray.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a plan view of the loading mechanism, FIG. 2 is a plan view of the whole, FIG. 3 is a front view thereof, FIG. 4 is a side view thereof, and FIG. 7 is a schematic perspective view of the entire disk player.

(P) is a disc player, and a door (3) is provided on the left side of the front surface of the rectangular box cabinet (1) via a support shaft (2) so as to be openable and closable. In addition, a tray case (5) is provided inside the door (3) via a stand (4), and a small diameter compact disc (6) having a diameter of 8 cm and a compact disc having a diameter of 12 cm. (7), a tray with a disc mounting surface (10), (11), (12), (13) for mounting a small-diameter video disc (8) with a diameter of 20 cm and a video disc (9) with a diameter of 30 cm (14), the left rail body (15) is fixed to the left side wall of the tray case (5), and the rear rail body (16) is fixed to the rear side wall of the tray case (5). B. A guide body (18) is provided on the right corner of the front part of the case (5) so as to be horizontally rotatable via a support shaft (17), and the rail bodies (15) (16) and the guide body (18) are vertically moved. Multiple arrangement in multiple stages The tray (14) is caused by the leaf spring (19) that projects inside the rear rail body (16) and elastically presses the rear surface of the tray (14), and the rail bodies (15) (16) and the guide body (18). ) Is supported substantially horizontally, and a plurality of trays (14) ... are stacked and arranged in multiple stages. The front and right sides of the tray case (5) are opened, and the tray case (5) can be placed in front of or on the right side. The tray (14) is configured to slide.

Further, upper and lower interlocking shafts (20a) (20a) extending in the front-rear direction are rotatably supported on the upper and lower surfaces of the cabinet (1) via brackets (20), and each shaft (19) (19) ), The front and rear timing belts (22) and (22) are stretched through the pulleys (21) to the front and rear ends, and the front and rear sides of the deck chassis (23) are connected and fixed to the respective belts (22) and (22). A deck chassis (23) is installed substantially horizontally on the right side of the tray case (5), and an elevating motor (24) for selecting each of the trays (14), and a screw shaft for normal and reverse rotation by the motor (24). (25) is disposed on the right rear part of the cabinet (1) via a mounting base (26), and is vertically erected in the thread groove (27) of the screw shaft (25) in the deck chassis (23). ) Link pin ( 28) is engaged, and the deck chassis (23) is vertically moved up and down via the belts (22) and (22) by forward and reverse rotation of the screw shaft (25).

A reproduction deck (29) is placed on the deck chassis (23), and includes a turntable (31) rotated by a motor (30) and a turntable (31) via a chuck arm (32). 31) a chuck plate (33) that can be attached to and detached from the pickup plate, a pickup table (36) to which a pickup (34) is attached and which is self-propelled by a motor (35), and a rail (a guide that moves and guides the pickup table (36). 37) Upper and lower pickup guide chassis (39) (39) equipped with (37) and rack gears (38) (38), and the pickup base (36) rotated by a motor (40) to move the respective guide chassis (39). The reproduction deck (29) is provided with a turn carriage (41) for transferring to the turntable (39), and a turntable (41) is provided by a chuck plate (33). The disc (9) fixed to the table (31) is rotated, and the information on the disc (9) is read by a pickup (34) moved to the upper and lower surfaces of the disc (9).

Further, as a loading mechanism according to the present invention, a loading gear (42) for moving the tray (14) in and out of a waiting position in the tray case (5) or a reproduction position of the turntable (31), and the loading gear (42). The loading mechanism (45) is provided with a loading motor (43) for driving the gear (42) and a sliding body (44), and the loading mechanism (45) is disposed on the front upper surface of the deck chassis (23). The slide body (44) is slidably attached to the deck chassis (23) through the support shafts (46) (46) and the long holes (47) (47) in the left-right direction, and the pinion gear (48) and The sliding body (44) is connected to the loading gear (42) via the rack gear (49), and the output gear (50) is driven by the loading motor (43). The loading gear (42) is rotated forward and backward around the support shaft (52) via the ring gear (51) to reciprocate the sliding body (44).

In addition, a drive gear (54) meshing with the rack rack (53) on the lower surface of the tray (14) and an input gear (56) constantly connected to the drive gear (54) through an idle gear (55). ) And a slide contactor (59) (59) (60) slidably brought into contact with the entrance / exit guide surface (57) and the entrance / exit guide groove (58) on the lower surface of the tray (14). 44) The deck chassis (23) is provided with tray loading / unloading gears (61) (62) (63) for connecting the input gear (56) to the loading gear (42) on the left side, and the sliding body (44) is When the drive gear (54) starts to mesh with the input / output rack gear (53) by moving to the left, the input gear (56) meshes with the tray input / output gear (63) and the loading gear (42) drives the drive gear (54). The gear (54) is driven to move the tray (14) from the tray case (5) toward the turntable (31).

Further, a protrusion (64) is integrally formed on the guide body (18) which is a lock member for fixing and supporting the tray (14) to the tray case (5), and a notch (65) on the front side of the tray (14) is formed. ) Is provided with a leaf spring (66) for engaging and supporting the ridge (64), and the tray (14) is elastically pressed by the leaf spring (19) from the rear side to move the guide body (18) from the front side. The tray (14) is fixed to the tray case (5) by the elastic force exerted by 66) and the engagement of the protrusion (64) and the notch (65).

Further, a slant surface (67) is formed on the right end portion of the loading / unloading guide surface (57), and the sliding member (44) serving as a loading member for loading / unloading the tray (14) into / from the tray case (5) is provided. By moving the tray (14) to the left side to start the take-out operation, the leading sliding contact (59) of the sliding body (44) comes into contact with the inclined surface (67), and the sliding body (44) is moved to the left side. By the moving force, the tray (14) is slid rearward against the leaf spring (19) to separate the notch (65) of the tray (14) from the ridge (64) of the guide body (18), The guide body (18), which is a lock member, and the tray (14) are separated from each other.

As shown in FIGS. 5 and 6, the sliding body (44) is moved leftward by the loading motor (43) through the gears (50) (51) (42) (48) (49). By doing so, the leading slide contactor (59) contacts the slope (67) to move the tray (14) rearward against the leaf spring (19), and the guide body (18) and the tray (14) are moved. While the lock is released, the drive gear (54) meshes with the rack rack gear (53) and the loading motor (43) causes the gears (50) (51) (42) (61) (62) (63) (56). The tray (14) is moved to the right through (55), (54) and (53), and guided by the rear rail body (16) and the guide body (18), so that the tray (14) at the standby position of the tray case (5) is moved. ) Turntable (3 1 ) And the chuck plate (33) to the reproduction position. By reversely rotating the loading motor (43) to perform the reverse operation, the tray (14) at the reproduction position returns to the standby position and the guide member. The tray case (5) is fixedly supported again via (18) and the like.

Incidentally, as shown in FIG. 2, an electric circuit (69) including a power transformer (68) and the like is arranged on the rear side of the tray case (5), so that the tray case (5) and the reproduction deck are replaced. The rear space of the cabinet (1) formed by the difference in the depth dimension from (29) can be effectively utilized, and the power transformer (68) and the screw shaft (25), which are heavy objects, are distributed to the left and right to maintain the left-right weight balance. In addition, as shown in FIG. 3, when the standby switch (70) is provided at the bottom of the cabinet (1) and the deck chassis (23) is lowered to a standby position lower than the position facing the tray (14) at the lowest position. The chassis (23) actuates the switch (70) to stop the lifting motor (24), and the chassis (23) is always supported in the standby position when the power is off, and the heavy load The deck chassis (23) can be stably supported at a low position, and the power is turned on with the playback deck (29) always standing by at a substantially constant position, and the selection of the tray (14) and the disc (9) are performed. It is possible to perform operations such as playback of in the shortest time.

Although a preferred embodiment of the present invention has been described in detail above, the present invention is not limited to this, and it is apparent that various modifications can be made without departing from the scope of the present invention. Is.

For example, the number of trays (14) is not limited to 10 stages as in the present embodiment, and it goes without saying that the number of trays (14) can be applied to a plurality of stages. Further, in the present embodiment, the L-shaped movement of the tray out of the machine / standby position / playback position has a “” shape (in FIG. 5, the standby position is the left side and the playback position is the right side), but the present invention is not limited to this. Needless to say, the L-shaped movement may be in the form of "?" (The standby position is on the right side, and the reproduction position is on the left side).

As described above, according to this embodiment, the drive gear is provided at one end of the sliding body provided in the loading mechanism, and the drive gear is engaged with the rack gear formed on the tray to move the tray. With the configuration, there are advantages that the structure of the loading mechanism can be simplified and downsized, and the cost can be easily reduced.

[0020]

[Effect of the device]

 As described above in detail, according to the present invention, a loading mechanism of a disc player for moving a tray on which a disc is placed to a standby position or a reproduction position, wherein a drive is provided at one end of a sliding member provided in the loading mechanism. Since the drive is equipped with a gear, and the drive gear is configured to move the tray by meshing with the rack gear formed on the tray, the structure of the loading mechanism can be simplified and downsized, and the cost can be reduced. The effect that it can be easily achieved can be exhibited.

[Brief description of drawings]

FIG. 1 is a plan view of a loading mechanism of a disc player according to an embodiment of the present invention.

FIG. 2 is an overall plan view.

FIG. 3 is a front view of the same.

FIG. 4 is a side view of the same.

FIG. 5 is a tray support explanatory diagram.

6 is an operation explanatory view of FIG. 1. FIG.

FIG. 7 is a schematic perspective view of the whole.

FIG. 8 is an operation explanatory view showing an example of a conventional loading mechanism.

[Explanation of symbols]

 (5) Tray case (6) to (9) Disc (14) Tray (23) Deck chassis (44) Sliding body (45) Loading mechanism (53) Rack rack gear (54) Drive gear (P) Disc player

Claims (1)

[Scope of utility model registration request] 1. A loading mechanism of a disc player for moving a tray on which a disc is placed from a standby position to a reproduction position, wherein a slide gear provided in the loading mechanism is provided with a drive gear at one end thereof, and the drive gear is the tray. A loading mechanism for a disc player, characterized in that the tray is moved by meshing with a rack gear formed on the.