JPH0562328A - Disk driving device - Google Patents

Abstract

PURPOSE:To eliminate a fear of collision between a head and a cassette by widely separating the head by providing a prescribed step on a lifter of a cassette holder. CONSTITUTION:A protrusion 6 is provided between the recording and reproducing head 3a at the tip of a head arm 4 and a fulcrum 5, and also the stop 7 is provided in a part of the lifter 2 of the cassette holder 1 corresponding to the protrusion 6 when the heads 3a and 3b are moved to the side of a further inner circumference than the innermost circumferential track. Under this constitution, the heads 3a and 3b are moved to the further inner circumferential side than the innermost circumferential track at the time of inserting and detaching a disk, and afterward when the lifter 2 interlocked with the holder 1 is lifted, the protrusion 6 is pushed upward by the step 7, and the head arm 4 is turned around the fulcrum as the center, thus widely separating the head 3a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive device such as a floppy disk.

[0002]

2. Description of the Related Art In a disk drive device such as a floppy disk, the disk is inserted / removed at a position separated from the drive unit in the direction of the rotation axis. For this reason, at the time of inserting / removing the disc, at least the recording / reproducing head on the side in which the disc is separated is further separated so that the recording / reproducing head does not collide with the disc cassette or the like.

That is, when a disk such as a floppy disk is accommodated in a plastic cassette or the like, a window portion is provided in the cassette, and the head is dropped into the window portion for recording / reproducing. Therefore, when the disk is inserted and removed, the recording / reproducing head must collide with the edge of the window as shown in FIG. 2 unless the recording / reproducing head is further separated by at least the thickness of the window.

Therefore, the applicant of the present application first provided a protrusion in the middle between the fulcrum of the arm of the recording / reproducing head and the head, and pushed up the protrusion by the elevating means interlocked with the movement of separating the disc, so that the tip of the arm was reached. A device for further separating the provided heads has been proposed (Actual Kaihei 2-6096).
No. 6).

That is, in FIG. 3, reference numeral 1 denotes a cassette holder for holding a cassette (not shown) of discs, and a lifter (elevating means) 2 is provided extending from the cassette holder 1. Further, 3a is a recording / reproducing head on the side of the disc which is separated, and 3b is a recording / reproducing head on the opposite side. The recording / reproducing head 3a is provided at the tip of a head arm 4, and the head arm 4 is rotated around a fulcrum 5. The recording / reproducing head 3b is fixed.

Further, a protrusion 6 is provided between the recording / reproducing head 3a of the head arm 4 and the fulcrum 5. When the disc is inserted or removed, the protrusion 6 is pushed up by the lifter 2 which is interlocked with the cassette holder 1.
By rotating the head arm 4 about the fulcrum 5, the recording / reproducing head 3a is further separated. In this prior application, the influence of the bending of the lifter 2 is removed by moving the head further to the inner circumference side than the innermost track when the disk is inserted or removed.

However, in this apparatus, when the head arm 4 vibrates, the recording / reproducing head 3a may still collide with the disk cassette. Here, for example, the position of the above-mentioned projection 6 may be brought closer to the fulcrum 5 to increase the separation amount of the recording / reproducing head 3a, but this causes a problem of the flexure of the lifter 2. The height of the lifter 2 is limited so as not to interfere with the movement of the arm 4 during recording and reproduction.

[0008]

The problem to be solved is that in the conventional apparatus, the recording / reproducing head may still collide with the disk cassette when the head arm vibrates, and the recording / reproducing head is separated. The amount needs to be larger.

[0009]

According to the present invention, a disc-shaped recording medium is held by a holding portion (cassette holder 1) to be inserted / removed, and the disc-shaped recording medium is reciprocally moved in a substantially radial direction. Reproducing heads 3a and 3b are provided, and an elevating means (lifter 2) for separating the recording / reproducing head from the disc-shaped recording medium is provided at the same time when the holding portion is driven at the time of the insertion / removal, and the recording / reproducing at the time of the insertion / removal. The disk drive device is characterized in that the head is moved outside the reciprocating range and the step 7 is provided on the elevating means outside the range.

[0010]

According to this, the step of the elevating means causes the recording / reproducing head to be further separated from each other, and the risk of the recording / reproducing head colliding with the disk cassette can be extremely reduced.

[0011]

1 is a cassette holder for holding a cassette (not shown) of discs, and a lifter (elevating means) 2 is provided extending from the cassette holder 1. Further, 3a is a recording / reproducing head on the side of the disc which is separated, and 3b is a recording / reproducing head on the opposite side. The recording / reproducing head 3a is provided at the tip of a head arm 4, and the head arm 4 is rotated around a fulcrum 5. The recording / reproducing head 3b
Is fixed.

Further, a projection 6 is provided between the recording / reproducing head 3a of the head arm 4 and the fulcrum 5. Further, a step 7 is provided at a portion corresponding to the protrusion 6 when the recording / reproducing heads 3a, 3b of the lifter 2 are moved further inward from the innermost track.

When the disk is inserted / removed, the recording / reproducing heads 3a, 3b are moved further to the inner circumference side than the innermost track, and thereafter the lifter 2 interlocked with the cassette holder 1 is lifted, so that the step 7 causes a protrusion. 6 is pushed up, and the head arm 4 is rotated about the fulcrum 5 to further separate the recording / reproducing head 3a.

Thus, according to the above apparatus, the step 7 of the elevating means (lifter 2) causes the recording / reproducing head 3a to be separated from each other more greatly, and the risk of the recording / reproducing head colliding with the disk cassette can be extremely reduced. Is.

In the above-described device, the step 7 is provided only in the portion corresponding to the protrusion 6 when the recording / reproducing heads 3a, 3b are moved further inward from the innermost track, so that the arm is used in recording / reproducing. It does not interfere with the movement of 4. The position of the projection 6 is the same as the conventional one, and the lifter 2
There is no problem of bending.

Further, the present application is an apparatus in which a lifter (elevating means) 2 is independently provided, and the recording / reproducing heads 3a, 3b are moved further to the outer peripheral side than the outermost track when the disk is inserted or removed. A step 7 may be provided at a portion corresponding to the protrusion 6 when the second recording / reproducing heads 3a and 3b are moved further outward than the outermost track.

[0017]

According to the present invention, the recording / reproducing head is further separated by the step of the elevating means, and the risk of the recording / reproducing head colliding with the disk cassette can be made extremely small.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a main part of an example of a disk drive device according to the present invention.

FIG. 2 is a diagram for explaining a collision between a recording / reproducing head and a disk cassette.

FIG. 3 is a configuration diagram of a main part of a conventional disk drive device.

[Explanation of symbols]

 1 cassette holder 2 lifter 3a recording / reproducing head 3b on the side where the discs are separated 3b recording / reproducing head on the opposite side 4 head arm 5 fulcrum 6 protrusion 7 step

Claims (1)

[Claims] 1. A recording / reproducing head is provided which holds a disc-shaped recording medium in a holding portion for insertion / removal and reciprocates substantially in the radial direction of the disc-shaped recording medium. And a driving means for moving the recording / reproducing head away from the disk-shaped recording medium at the same time as the driving of the recording / reproducing head. The disk drive device is characterized in that the elevating means is provided with a step.