JPH0223942B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc holding device for a disc player using a disc-shaped record carrier such as a video disc, an audio disc, or a record. By moving the disk guide in the axial direction of the clamper, the position of the disk clamp surface of the clamper is regulated so that it does not protrude from the surface of the movable disk guide at the disk attachment/detachment position, so that the disk can be smoothly inserted into the disk pocket. The point is that it can be done.

Conventionally, so-called vertical disk players have been known in which the disks are arranged vertically and played in order to reduce the depth of the disk player, but in such devices, it is necessary to clamp the disk to a disk rotating means. This made it cumbersome to attach and detach the clamper while holding the disk with one hand.

Therefore, in this invention, a disk pocket and a clamper are provided in a disk holding device rotatably supported between a disk attachment/detachment position and a disk playback position, and a disk is held in the disk pocket at the disk attachment/detachment position. The disc can be clamped to the disc rotation means by simply inserting the disc into the disc and rotating the disc holding device to the disc playback position.

An object of the present invention is to provide such a disc holding device that allows the disc to be smoothly inserted into the disc pocket.

An embodiment of the invention will be described with reference to the drawings. Figures 1 to 3 are a front view and left and right side views showing the entire device, Figures 4 and 5 are an overall view and an enlarged view of the main parts of the disk up mechanism, and Figure 6 is a diagram showing the disk in its attachment/detachment position. FIG. 7 is an explanatory diagram showing the positional relationship between the clamper and the movable disc guide, and FIG. 7 is an explanatory diagram showing the movement of the movable disc guide.

Door panel 1 on the front of the player cabinet.
is pivoted by a pin 7a provided at its lower end so that it can rotate between the disk attachment/detachment position shown in FIG. 4A and the disk playback position shown in FIG. 4B. .

The door panel 1 is provided with a disk pocket for holding the inserted disk 30 and a clamper 9 for fixing the disk 30 to the motor shaft of a disk drive motor 13.

The disk pocket consists of a movable disk guide 2 and a fixed disk guide 6 provided parallel to the door panel, and a disk mounting portion 17 having a U-shaped groove in which a disk 30 is placed.

The movable disk guide 2 is biased by four coil springs 4 in the direction away from the door panel (in the direction toward the fixed disk guide 6), and at the disk attachment/detachment position, the movable disk guide 2 is biased by four coil springs 4 protruding from the door panel.
Due to the stopper pin 3 of the book, the base 1 of the player cabinet is also
The positions of the four pins 15 and 15a protruding from 2 are regulated, respectively.

A spring guide 5 is inserted into each coil spring 4 from both sides thereof and projects from the door panel 1 and the movable disk guide 2, respectively.

The fixed disk guide 6 is fixed to side plates 7 provided on both left and right sides of the door panel 1 and having a U-shaped cross section.

The upper ends of the movable disk guide 2 and the fixed disk guide 6 are inclined in opposite directions to facilitate insertion of the disk 30.

As shown in FIG. 5, the disk mounting section 17 has a U-shaped groove on the upper side for placing the disk 30, is pivoted at the tip of the arm 16, and is connected to the movable disk guide 2 and the fixed disk. It is designed to be able to slide up and down along the guide 6.

The arm 16 that supports the disk mounting section 17 is
It is supported by a long hole 18 on a shaft 20 fixed to the player cabinet, and limits the amount of rotation of the door panel 1 at the disk attachment/detachment position, as shown in FIG. 4A.

A fixed disk guide 6 is provided on the lower side of the arm 16.
A pin 23 is placed across support plates 21 and 22 that protrude from the top, and as shown in FIG. 4A,
When the door panel 1 is rotated to the disk attachment/detachment position, the arm 16 is pushed up by the pin 23,
The disk mounting portion 17 supported at the tip thereof slides upward to push the disk 30 up to a position where it can be easily taken out.

The pin 23 is separated from the arm 16 at the disk playback position, and the disk mounting portion 17 is separated from the disk 30 as shown in FIG. 5C.

The clamper 9 is provided with a magnet 8 at its rear end (the end closer to the door panel), and is always moved away from the door panel 1 by a repulsive force with a magnet 10 of the same polarity provided at an opposing position on the door panel 1. When the disk is energized and in the disk attachment/detachment position, its position is regulated by four angles 11 having an L-shaped cross section and projecting from the door panel 1, as shown in FIG.

An annular disk clamping surface 9a having a concave portion in the center is formed on the front surface of the clamper 9, and this portion presses and holds the peripheral portion of the center hole of the disk 30 against a holder 14 fixed to the motor shaft.

As shown in FIG. 6, the disk clamping surface 9a of the clamper 9 is at a position slightly retracted from the surface of the movable disk guide 2 in the disk attachment/detachment position, so that the disk 30 can be inserted. The edge is designed to prevent the edge from hitting the disk clamping surface 9a.

The disk clamping surface 9a of the clamper 9 and the surface of the movable disk guide 2 may be made to be the same surface. .

As shown in FIG. 2, a lock plate 25 is pivotally supported on the left side when viewed from the front of the player cabinet, and in the disc playback position (the state shown in the figure), the urging force of a spring 26 causes the door panel 1 to The door panel 1 engages with the pin 7b provided on the side plate 7.
The lock is locked, and the lock is released by a plunger 28.

A disk drive motor 13 is attached to a base 12 provided perpendicularly to the player cabinet, and a holder 14 is fixed to the motor shaft.

As shown in FIG. 3, the holder 14 includes a spindle portion 14a that fits into the center hole of the disk 30 for positioning, a center spindle portion 14b that fits into the center hole of the clamper 9, and a center hole around the center hole of the disk surface. It consists of a flange portion 14c that abuts.

At the disc playback position, the disc 30 is clamped between the disc clamping surface 9a of the clamper 9 and the flange 14c of the holder 14 due to the repulsive force between the magnets 8 and 10.

By attaching the magnet 8 or the magnet 10 to the clamper 9 or the door panel 1, respectively, with screws so that the position can be adjusted in the axial direction of the clamper, the force with which the clamper 9 is pressed against the holder 14 can be adjusted, and the thickness can be adjusted. Uniform pressing force can be obtained even when different disks are used.

Four pins 15 and 15a are protruded from the base 12 at positions facing the spring 4 provided on the door panel 1, as shown in FIG.
When the door panel 1 is rotated to the disk reproducing position, the movable disk guide 2 is separated from the disk 30 by coming into contact with the movable disk guide 2 and preventing its rightward movement.

Next, its operation will be explained.

When the door panel 1 is opened and rotated to the disk attachment/detachment position, the movable disk guide 2 moves forward from the disk clamping surface 9a of the clamper 9, as shown in FIG. Since the disc 30 will not collide with the movable disc guide 2 and the fixed disc guide 6, the disc 30 will be inserted between the movable disc guide 2 and the fixed disc guide 6, and the door panel 1 will be closed.

As the door panel 1 rotates toward the disc playback position, the disc mounting part 17 descends, and the spindle part 14a of the holder 14 fits into the center hole of the disc to position it, and the pin 15 provided on the base 12 and 15a come into contact with the movable disk guide 2, and as the door panel 1 further rotates, the movable disk guide 2 is separated from the disk 30. Then, the center spindle portion 14b of the holder 14 fits into the center hole of the clamper 9, and after clamping the disk 30, the clamper 9 separates from the angle 11 of the door panel 1, and the disk mounting portion 17 further descends to hold the disk. away from 30,
As a result, the disk 30 is supported only by the motor shaft.

Then, the disk drive motor 13 starts rotating, and the well-known optical pickup 24 moves in the radial direction of the disk 30 to perform reproduction.

When playback is finished and an eject switch (not shown) provided on the front of the player cabinet is pressed, the plunger 28 is energized and the lock plate 25 is rotated counterclockwise as shown in FIG. move,
Door panel 1 is unlocked and door panel 1
rotates toward you, follows the above-mentioned process in reverse, and finally the disk mounting section 17 rises and the disk 30
is pushed up to a position where it can be easily taken out.

The one shown in FIG. 8 is another embodiment, and the difference from the previous embodiment is that of the four pins 15 and 15a provided on the base 12, the lower two (15a) are omitted. However, the position of the disc guide 2 at the disc playback position is regulated by the arm 16 that supports the disc mounting portion 17.

For this purpose, move the lower end of the movable disk guide 2 to L.
When the door panel 1 is bent into a letter shape and moved to the disk playback position, as shown in FIG. Prevent it from moving in the direction.

As explained above, in the disk holding device of the present invention, the movable disk guide of the disk pocket moves in the axial direction of the clamper, so that the disk clamping surface of the clamper does not protrude from the surface of the movable disk guide at the disk attachment/detachment position. By regulating the position of the movable disc guide and moving the movable disc guide away from the disc at the disc playback position, the disc can be inserted extremely smoothly.
Further, there is an effect that the disk attachment/detachment operation can be performed extremely easily without the need to attach/detach the clamper.

In the above embodiments, the disk is arranged vertically at the disk playback position, but the disk holding device of the present invention is not limited to this, and the disk holding device of the present invention is not limited to such a device, but may also be arranged such that the disk is tilted, for example. Similar effects can be obtained even when used in a disc player that plays back discs.

[Brief explanation of drawings]

1 to 3 are a front view, left side view, and right side view (partially sectional view) showing the entire internal mechanism of an embodiment of the present invention, and FIGS. 4 and 5 are its disk-up. Overall view of the mechanism and enlarged view of main parts, No. 6
The figure is an explanatory diagram of the operation showing the positional relationship between the clamper and the movable disc guide at the disc attachment/detachment position, FIG. 7 is an explanatory diagram of the operation showing the movement of the movable disc guide, and FIG. FIG. 6 is an operation explanatory diagram showing the movement of the movable disk guide in the embodiment. DESCRIPTION OF SYMBOLS 1... Door panel, 2... Movable disk guide, 6... Fixed disk guide, 9... Clamper, 9a... Disc clamping surface, 13... Disc drive motor, 30... Disk.

Claims (1)

[Scope of Claims] 1. (a) A movable disk guide and a fixed disk guide that rotate between a disk attachment/detachment position and a disk playback position, and (b) a movable disk guide and a fixed disk guide arranged to face each other, and (b) a disk inserted in the disk attachment/detachment position. (c) a clamper that is movable within a predetermined range in the axial direction and is supported on the movable disc guide side and that fixes the disc to the disc rotation means in the disc playback device; ) By moving the movable disc guide in the axial direction of the clamper, the position of the movable disc guide is regulated so that the disc clamping surface of the clamper does not protrude from the surface of the movable disc guide at the disc attachment/detachment position, and at the disc playback position. A disk holding device characterized in that a movable disk guide moves away from the disk.