JPH0679409B2 - Disk unit opening / closing mechanism - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insertion opening opening / closing mechanism of a disk device, and more particularly, to the front surface of the device when a recording disk housed inside a disk cartridge is placed on a spindle motor. The present invention relates to an insertion port opening / closing mechanism of a disk device having a function of closing the insertion port of the disk cartridge arranged in the above.

[Conventional technology]

Conventionally, the insertion opening opening / closing mechanism of this type of disk device has a disc size in the vicinity of the insertion port arranged on the front surface of the device when the recording disk housed in the disk cartridge is placed on the spindle motor due to the device size limitation. The rear end of the cartridge is located, and the tip of the shutter, which closes the insertion slot so as not to hinder the operation of pulling out the disc cartridge during unloading, contacts the top of the disc cartridge and completely closes the insertion slot. It wasn't there.

[Problems to be Solved by the Invention]

In the conventional insertion opening opening / closing mechanism of the above-mentioned disk device, when the recording disk is placed on the spindle motor, the shutter which acts to close the insertion opening arranged on the front surface of the apparatus is a disk cartridge containing the recording disk inside. Since it has a structure that does not completely close the insertion port by contacting the head, dust in the atmosphere enters the inside of the device through the gap and adheres to the head surface, which may cause an error due to misreading during recording and reproduction. It has the drawback of being large.

Moreover, since the insertion port is open, there is a risk that the disk cartridge will be doubly inserted into the apparatus and the inside of the apparatus or the disk cartridge will be damaged.

[Means for Solving the Problems]

In order to solve the above problems, the insertion opening opening / closing mechanism of the disk device of the present invention moves to an accessible position while holding the insertion opening into which the disk cartridge is inserted and the disk cartridge inserted into this insertion opening. Together with a carrier provided with an elliptical hole, a driving means for moving this carrier, a cover provided with an elliptical hole, one end fitted into the elliptical hole of the carrier, and the other end having an elliptical shape of the cover. A first link fitted in the hole; a second link having one end fitted in the elliptical hole of the carrier and the other end fitted in the elliptical hole of the cover; the first link and the first link; Link pins for rotatably connecting the two links to each other so that the cover moves to a position to close the insertion opening when the carrier moves the disc cartridge to an accessible position. It is made.

〔Example〕

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

Referring to FIG. 1, the shutter 3 has side portions engaged with a rotary pin 2 located above the insertion opening 1, is rotatably held inside the device with the rotary pin 2 as a fulcrum, and is supported by a pin 4. A torsion coil spring 6 provided between the inner upper portion of the front mask 5 and the shutter 3 applies tension in the closing direction. The cover 10 is supported by a cover guide 11 provided on the front mask 5 and is vertically movable.
Further, the cover 10 has an elliptical hole in its lower portion and is fitted with cover rollers 8a and 9a provided on the links 8 and 9, respectively. These links 8 and 9 are link pins 7.
And has carrier rollers 8b and 9b at the other ends of the cover rollers 8a and 9a, respectively.
It is fitted with the oval hole of.

In the above configuration, when the disc cartridge is inserted into the device, the disc cartridge (not shown) is closed by the shutter 3
When the shutter 3 is pushed and the shutter 3 is rotated around the rotation pin 2 as a fulcrum, the insertion opening 1 is opened and the disc cartridge is stored in the carrier 12. The carrier 12 is hung down by a loading mechanism (not shown) so that the recording disk housed inside the disk cartridge is placed on the spindle motor. FIG. 2 shows the positional relationship between the cover 10, the links 8 and 9, and the carrier 12 before inserting the disk cartridge into the apparatus, and FIG. 3 shows the positional relationship after the disk cartridge is inserted and the carrier 12 hangs down. . As shown in FIG. 3, the carrier rollers 8b and 9b also descend in conjunction with the descending movement of the carrier 12, and the links 8 and 9 rotate about the link pin 7 as a fulcrum. It is lifted by the cover rollers 8a and 9a along the cover guide, and the insertion opening 1 is closed.

Next, at the time of unloading, the operation is the reverse of the previous operation and the carrier 12 rises, causing the cover 10 to
And the insertion opening 1 is opened. After the disk cartridge is pulled out from the device, the restoring force of the torsion coil spring 6 causes the shutter 3 to rotate about the rotation pin 2 as a fulcrum, thereby closing the insertion opening 1.

Here, the distance from the fulcrum of the cover rollers 8a and 9a to the link pin 7 is formed longer than the distance from the link pin 7 to the fulcrums of the carrier rollers 8b and 9b. The amount of rise of the cover 10 will be obtained. This is the elliptical holes of the cover 10 and the carrier 12, the cover rollers 8a, 8b and the carrier roller 9a,
Except for the play between 9b, The relationship is established.

〔The invention's effect〕

As described in detail above, by using the insertion opening opening / closing mechanism of the disk device of the present invention, the risk of dust in the atmosphere entering the inside of the device is reduced by closing the insertion port after inserting the disk cartridge. This has the effect of improving reliability.

Further, since the insertion opening is closed, there is an effect of preventing double insertion of the disk cartridge.

In addition, the loading operation of the disc cartridge activates the opening / closing mechanism of the insertion opening, so that the structure is simple, the size can be reduced, and an extremely highly practical device can be obtained.

[Brief description of drawings]

FIG. 1 is a three-dimensional perspective view of an embodiment of the present invention, and FIGS. 2 and 3 are partially enlarged views. 1 ... insertion slot, 7 ... link pin, 8 ... link, 10 ...
… Cover, 12 …… Career.

Claims (1)

[Claims] 1. An insertion opening into which a disk cartridge is inserted, a carrier that holds the disk cartridge inserted into the insertion opening and moves to an accessible position, and a carrier provided with an oval hole, and a carrier that moves this carrier. Driving means, a cover provided with an oval hole, a first link having one end fitted in the oval hole of the carrier and the other end fitted in the oval hole of the cover, and one end of the carrier A second link fitted in the elliptical hole of the cover and the other end fitted in the elliptical hole of the cover, and a link pin for rotatably connecting the first link and the second link to each other. An insertion opening opening / closing mechanism of a disk device, wherein the cover moves to a position that closes the insertion opening when the carrier moves the disk cartridge to an accessible position.