JP2785584B2 - Optical disk drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk device,
In particular, the present invention relates to an optical disk device in which an optical disk housed in a cartridge is inserted from the outside.

[0002]

2. Description of the Related Art In a conventional optical disk device, a base of an optical disk device is elastically supported from a frame via an elastic member in both cases of insertion and removal of a cartridge and recording / reproduction after a cartridge is mounted. It had been.

[0003]

In the structure of the conventional optical disk device, a space is provided for the elastic member to be deformed between the frame and the base, the spindle mounted on the base, the optical head, the cartridge holder, and the loading mechanism. It is necessary to keep. For this reason, there is a disadvantage that the external dimensions cannot be reduced in the thickness direction of the apparatus, which is the thickness direction of the cartridge.

In addition, when the cartridge is inserted or removed, the cartridge holder is elastically connected to the frame via the base. Therefore, the position of the cartridge with respect to an external mechanism at the time of insertion and removal of the cartridge is not fixed, and the There was also a drawback that delivery was hindered.

[0005]

SUMMARY OF THE INVENTION The present invention provides a frame for connecting an apparatus to an external mechanism, a base connected to the frame via an elastic member, and an optical disk medium disposed on the base and housed in a cartridge. In an optical disc device having a spindle mounted and driven to rotate and an optical head for recording / reproducing information on / from the optical disc medium, a cartridge holder for holding the cartridge, and the cartridge holder with respect to the frame A loading mechanism for relatively moving the cartridge holder by a predetermined amount; and a stopper fixed to the frame to restrict movement of the cartridge holder. When the cartridge is inserted or removed, the loading mechanism positions the cartridge holder at a position where the cartridge holder comes into contact with the stopper. It is characterized by holding.

Further, the loading mechanism may move the cartridge holder relative to the base by a moving distance longer than a moving distance relative to the frame. Further, the stopper may have a vibration absorbing portion made of a shock absorbing member.

[0007]

Next, the present invention will be described with reference to the drawings.

FIGS. 1A and 1B are cross-sectional views schematically showing one embodiment of the present invention. FIG. 1A shows a state when a cartridge is inserted and removed, and FIG. Indicates a state at the time of recording / reproduction after the cartridge is inserted.

First, at the time of inserting / removing a cartridge, the cartridge 1 to be inserted / removed into / from the optical disk device is held by the cartridge holder 2. The cartridge holder 2 is positioned on the base 3 by a load mechanism 4 at a position separated from the base 3 by a first predetermined amount. At the same time, the cartridge holder 2 contacts the cartridge stopper 6 fixed to the frame 5 and is positioned at a specific position with respect to the frame 5. The base 3 is supported by the frame 5 via an elastic member 7. In view of this, the first predetermined amount is set to a value at which the elastic member 7 is deformed by a certain amount and a value at which the spindle 8 fixed on the base 3 and the cartridge 1 are located at a sufficiently separated position. .

On the other hand, during recording / reproduction, the cartridge halter 2 is positioned at a position separated from the base 3 by the loading mechanism 4 by a second predetermined amount. The second predetermined amount is larger than the first predetermined amount and is larger than the deformation amount of the elastic member 7, and is set to a value at which the optical disk (not shown) inside the cartridge 1 is mounted on the spindle 8. Therefore, the cartridge holder 2 is provided with the cartridge stopper 6.
Without contact with cartridge 1, cartridge holder 2,
The load mechanism 4, the spindle 8, and the base 3 on which these are mounted are elastically supported from the frame 5 via an elastic member 7.

In this embodiment, although omitted for the sake of explanation, an optical head is mounted on the base 3, and at the time of recording / reproducing, information is recorded / recorded on an optical disk by optical means.
It is clear that regeneration takes place. In addition, road coming light 4
Is also schematically shown, but a load mechanism of the same type as a load mechanism used in a conventional optical disk device using a rotary motor and a crank mechanism or a slide mechanism may be used. Next, as the elastic member 7, various types such as a type in which a coil spring and a rubber material are used in combination and a type of rubber material on a diaphragm are practically used. It is possible. Also, the first
The second predetermined amount and the second predetermined amount allow the base 3 to be displaced at substantially equal distances in both directions with respect to the thickness direction of the optical disc apparatus which is the thickness direction of the cartridge 1 during recording and reproduction, and when the cartridge is inserted and removed. In addition, it is preferable to set the amount such that the displacement cannot be substantially made even in the direction opposite to the direction in which the displacement is restricted by the cartridge stopper 6.

Further, the cartridge stopper 6 can be formed by bending a part of the frame 5. Alternatively, a part of the frame 5 may be cut out, and a part of the cartridge holder 2 may be inserted therein, so that the end of the cutout part of the frame 5 can be used as the cartridge stopper 6. By installing an impact absorbing member at a position where the cartridge stopper 6 comes into contact with the cartridge holder 2, it is possible to absorb the impact caused by the collision between the cartridge stopper 6 and the cartridge holder 2 when the cartridge is ejected.

[0013]

As described above, according to the present invention, when the cartridge is inserted into and removed from the cartridge holder, the cartridge comes into contact with the cartridge stopper fixed to the frame, whereby the position of the cartridge with respect to the external mechanism of the optical disk device can be set at a fixed position. The delivery of the cartridge can be facilitated, and there is no need to secure a movable range for elastic support when inserting and removing the cartridge. This has the effect of reducing the thickness of the optical disk device.

[Brief description of the drawings]

FIGS. 1A and 1B are cross-sectional views schematically showing one embodiment of the present invention. FIG. 1A shows a state when a cartridge 1 is inserted and removed, and FIG. 1B shows a recording state after the cartridge 1 is inserted. FIG. 14 is a diagram illustrating a state at the time of reproduction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge 2 Cartridge holder 3 Base 4 Load mechanism 5 Frame 6 Cartridge stopper 7 Elastic member 8 Spindle

Claims (3)

(57) [Claims] A frame for connecting the device to an external mechanism;
A base connected to the frame via an elastic member, a spindle mounted on the base and mounted on an optical disk medium to be housed in a cartridge and driven to rotate, and a light for recording / reproducing information on / from the optical disk medium In an optical disk device having a head, a cartridge holder for holding the cartridge, a load mechanism for moving the cartridge holder relative to the frame by a predetermined amount, and a movement fixed to the frame to regulate the movement of the cartridge holder An optical disc device, comprising: a stopper that performs positioning when the cartridge is inserted or removed, and the loading mechanism positions and holds the cartridge holder at a position that comes into contact with the stopper. 2. The light according to claim 1, wherein the loading mechanism moves the cartridge holder relative to the base by a moving distance longer than a moving distance relative to the frame. Disk device. 3. The optical disk device according to claim 1, wherein the stopper has a vibration absorbing portion made of a shock absorbing member.