JPH0799604B2 - Disc auto loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an automatic loading device for a disk for an optical reading device having a drawer shape.

(B) Conventional technology In recent years, some optical reading devices such as compact discs use a loading device in the form of a drawer to mount a disc, but since the optical reading device is positioned as a high-grade device, Is done automatically. As shown in FIG.
Hold 2) first higher than the turntable (108),
The drawer-shaped disc carrier (103) is a sliding motor (130).
After entering the main body, the disk mounting portion (101) is lowered by the descending motor (130) to mount the disk (102) on the turntable (108). By the way, the clamping means for clamping the disc on the turntable, which is not disclosed in FIG. 5, must be operated in relation to the disc carrier, and the mechanism for driving them at a predetermined timing can be simplified. Is desired.

(C) Problems to be Solved by the Invention The present invention has been made in consideration of the above points, and provides an automatic disk mounting apparatus with a simple configuration.

(D) Means for Solving the Problems An automatic disk loading apparatus of the present invention includes a turntable that rotationally drives a disk, and a disk mounting section that mounts the disk, and mounts the disk on the disk mounting section. Movably supported between a disc mounting position to be mounted and a performance position where the disc mounted on the disc mounting portion is rotationally driven by the turntable,
And a disc carrier that forms a rack in the moving direction, and a disc that is mounted on the disc mounting portion can be moved to a position where it can be rotationally driven on the turntable and a position where the clamp is released. A clamp means supported on the disk carrier, a gear that meshes with a rack of the disk carrier, and a position where the disk is rotatably clamped to the turntable when the disk carrier moves to a playing position. And a single rotation driving unit that rotationally drives the gear and the control unit.

(E) Action As a result, it is possible to sequentially drive the disk carrier and clamp the disk with a single rotary drive unit.

(F) Embodiment FIG. 1 is a block diagram of an automatic disk loading device according to an embodiment of the present invention. FIG. 1 (a) is a plan view, (b) is a side view, (c) is a side sectional view, and (d). 8] is a front view of a first mechanism portion for sliding a disc carrier.

In the figure, (1) is a disk mounting portion for mounting or accommodating a disk (2), and (3) is a disk mounting portion (1).
Is a first disk carrier which is supported and housed by springs (4) (4) so that it can be moved up and down, and a disk rotation motor (5) is located at the center of the disk mount (1). It is supported so as to be slidable from the position to the position where the disk mounting portion (1) projects outside the optical reader case (6). (7) folds a flat plate provided so as to be located above the first disc carrier (3) when the disc mounting part (1) is at the position of the motor (5), and the hanging part (7 ') ( 7 ') is provided and is a C-shaped clasp (support for the center cap). At a substantially central portion corresponding to the turntable (8) provided at the tip of the motor (5),
A center cap (9) for clamping the disc on the turntable (8) is provided, and pressing pins (10) for pushing the top surface of the disc mounting portion (1) at the four corners.
(10)… has been planted. Further, a center cap (9) is provided on at least one of the U-shaped hanging portions so as to be close to the turntable (8) so as to clamp or release the disc (2), in other words, The second rack (1) for moving the clasped body (7) itself up and down
4) is provided, and below it, a limit switch (11) for detecting when the attached body (7) is fully lowered is arranged. Reference numeral (12) is a second disk carrier which moves by a length half the sliding amount of the first disk carrier (3), and is provided with a first rack (3) as described later. Position regulating guide pins (16 ') (16') that engage with guide and stop position regulating holes (16) (16) provided in the first disc carrier (3) to regulate the sliding direction. ) And frames (15)
Guides (17) (17) for engaging with the position regulating guide pins (17) (17), and rollers (19) for applying threads (8) for regulating the sliding amount (19), and is urged by a spring (20) in a direction in which the first disc carrier (3) projects. Reference numeral (21) is a rotary shaft of the motor (22), and timing is supported by one rotary shaft composed of timing gears (23) and (24) partially having gears meshing with the racks (13) and (14). It is equipped with means. Further, the disc carrier comprises a first disc carrier (3) and a second disc carrier (12).

The operation of the above-described structure will be described with reference to the main part configuration diagrams of FIGS. 2 to 4. FIGS. 2 (a) and 3 (a) are exploded front views showing the positional relationship of the components of the first mechanism section, and FIG. 4 (a) is a sectional view of the main parts when a disc is mounted. (B) is a state diagram showing the relationship between the timing gears (23) (24) and the racks (13) (14).

First, a state in which the first disk carrier (3) is completely projected from the optical reading device case (6) in FIG. 2 will be described. At this time, the 1st rack (13) has the timing gear (23)
The second rack (14) and the timing gear (24) have no relation with each other and the clasped body (7) is at the uppermost position. There is. And in the first mechanism part, the pins (16 ') (16')
(17) and (17) are located at the ends (left end in the figure) of the guide and stop position regulating holes (16), (16), (17 '), and (17'). Both ends of the thread (18) are fixed to the first disk carrier (3) and the frame (15) and the roller (1
9) The hooks (3 ') and (15') are hooked on (19), but the fixed parts are provided with claws (3 ') (15') so as to be located on the same plane as possible.

Since such a state is the state of the disc eject or the disc set, the disc is placed on the disc mounting portion (1).
Put it on the designated part of the loading switch (not shown)
Is operated, the motor (22) is energized and the rotary shaft (21)
Starts rotating at a low speed. When rotated counterclockwise in the figure, the timing gear (23) meshes with the first rack (13) and the second disk carrier (12) moves leftward, but the thread (18) moves along with the movement. The first disc carrier (3) also moves to the left due to the tension. This time frame (15)
The amount of movement of the second disk carrier (12) with respect to the first disk carrier (3) with respect to the second disk carrier (12)
Of the first disk carrier (3)
The second disk carrier (12) is moved approximately twice. Third
The figure shows the state in which the first disk carrier (3) is at the leftmost position in this way, and the opening surface of the optical reader case (6) is the end surface (3) of the first disk carrier (3). ″), The motor (5) is located in the center of the disc mounting part (1), and the turntable (8) is directly below the center of the disc mounting part (1). In the mechanical part of, the pins (16 ') (16)' (17) (17) are all holes (16) (16) (17 ') (1
It is located at the right end of 7 '). In addition, the timing gear (2
3) finishes meshing with the first rack (13) and presses the gear at the right end of the first rack (13) to the left at the gearless portion of the timing gear (23). At that time, this pin (1
Since 6 '), (16'), (17) and (17) are located at the right end of the guide and stop position regulating holes (16), (16), (17 ') and (17') respectively, the carrier ( 3) The positions of (12) and the rotary shaft (21) of the timing gear (23) are accurately regulated. The timing gear (24) is in mesh with the second rack (14) or is in a position where it can be meshed immediately. When the rotary shaft (21) continues to rotate as it is, the first mechanism part does not move as it is, but the second rack (14) moves downward. FIG. 4 shows a state in which the second rack (14) has moved to the lowest position and the limit switch (11) has detected the lowest descent. Since the descending of the second rack (14) is the descending of the holding body (7), the pressing pins (10) (10) of the holding body (7) are located at the four corners of the disc mounting portion (1). It abuts and pushes down the disc mounting portion (1). Therefore, if there is a disc on the disc mounting portion (1), the disc is supported on the turntable (8). Then, when the clasped body (7) further descends, the center cap (9) covers from above the turntable (8), so if there is a disc, use it with the turntable (8) and the centercap (9). Clamped. When the clasped body (7) descends to the lowest position, the limit switch (11) operates to stop the rotation of the rotary shaft (21).

Although the disc is mounted as described above, the reverse operation described above may be performed by rotating the rotary shaft (21) clockwise.

(G) Effect of the Invention According to the present invention, as described above, the gear and the control unit are rotated by the single rotation drive unit to sequentially drive the disk carrier and the clamp means, and the structure can be simplified and the device can be easily operated. Since the disc itself can be downsized and the disc carrier can be moved by the combination of the rack and the gear, the gear and the control unit can be fixedly provided with respect to the movement of the disc carrier. When moving to the mounting position, the clamp means can be prevented from moving to the disk mounting position in conjunction with the disc carrier, and the disc can be easily mounted without being disturbed by the clamping means.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an automatic disk loading device according to an embodiment of the present invention. FIG. 1A is a plan view, FIG. 1B is a side view, FIG. 1C is a side sectional view, and FIG. It is a front view of a mechanism part. 2 to 4 are configuration diagrams of main parts for explaining the operation of the above-described device, and FIGS. 2 (a) and 3 (a) are exploded front views of the first mechanism part and FIG. FIG. 3A is a sectional view of a main part, and FIGS. 2B, 3B and 4B are state diagrams showing the relationship between the timing gear and the rack. FIG. 5 is a sectional view of a conventional loading device. (1) ... Disc mounting portion, (2) ... Disc, (3) ...
First disk carrier, (7) ... Clamping body, (8) ... Turntable, (9) ... Center cap, (10) (10) ... Push pin, (11) ... Limit switch, (12) ... 2 disk carrier, (13) ... first rack, (14) ... second rack, (15) ... frame, (18) ... thread, (21) ... rotating shaft, (23) (24) ... timing gear.

Claims (1)

[Claims] 1. A turntable for rotating a disk, a disk mounting portion for mounting the disk, a disk mounting position for mounting the disk on the disk mounting portion, and a disk mounting portion mounted on the disk mounting portion. A disk carrier that is movably supported between a disk and a playing position where the disk is rotated by the turntable, and that forms a rack over the moving direction; and a disk mounted on the disk mounting portion. Clamping means movably supported at a position where the turntable is rotatably clamped and at a position where the clamp is released, a gear that meshes with the rack of the disk carrier, and a rotary drive that rotationally drives the gear. A part having a portion, is provided so as to be rotationally driven by the rotary drive part together with the gear, and is provided by the rotation of the gear. Timing means configured to directly transmit a rotation operation to the clamping means so as to move the clamping means to a position for clamping the disk on the turntable when the disk carrier moves to the playing position An auto loading device characterized by.