JPH0142846Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a floppy disk drive device used as a recording/reproducing device for computers and word processors.

[Conventional technology]

When a floppy disk is inserted into a floppy disk drive device, the floppy disk is automatically lowered by engaging with a rotating drive member, and the magnetic head is pressed against the floppy disk with an appropriate pressure.

FIGS. 1 and 2 show an example of this. When a cassette A containing a floppy disk is inserted in the direction of the arrow, the front edge 1 pushes the stopper 2a of the head holder 2 and the locking device (not shown) of the slider 3. , the head holder 2 is moved forward (moved to the right in FIG. 2), and the locking device is unhooked to release the slider 3.

The released slider 3 is pulled by the spring 4, and the lifting cams 3a, 3a provided on the slider 3 move to the left in FIG.

At this time, the protrusions 5, 5 provided on the side surfaces of the head holder 2 (the one shown has bearings attached) are positioned above the vertical grooves of the mold guide grooves 8, 8 provided in the side plate 7 of the container frame 6. Therefore, when the slider 3 moves to the left, it is pulled by the spring 9 and descends together with the cassette A.

Both sides of the head holder 2 are bent in a U-shape to guide the insertion of the cassette A, and the bent portions serve to hold the cassette.

As the cassette A descends, the head arm 11, which had been lifted up via the protrusion 10, is lowered by a spring (not shown), and the magnetic head is brought into pressure contact with the recording surface of the floppy disk.

Then, when the take-out key 12 is pushed against the spring 4, the slider 3 is locked in the advanced position by the hook of the locking device (not shown), and the lifting cams 3a, 3a of the slider 3 are When the protrusions 5, 5 in the vertical grooves of the mold guide grooves 8, 8 are raised and the protrusions 5, 5 reach the ends of the horizontal grooves, the head holder 2 is pulled rearward by the spring 9, and as shown in FIG. Return to the indicated position.

As described above, in the conventional floppy disk drive device, when loading, that is, when inserting a cassette, the head holder 2 is suddenly lowered by the spring 9.
Head arm 1 was lifted as a result.
1 is rapidly lowered by a compression spring (not shown), which has the disadvantage that the magnetic head collides with the recording surface of the floppy disk, damaging it and shortening its life.

[Means for solving problems (deficiencies)]

This invention was made in order to solve the above-mentioned drawbacks, and a damper device for decelerating the head holder is provided to slow down the descending speed of the head arm 11 and thereby reduce the impact force.

That is, in this invention, the head holder is configured to move forward when the floppy disk is inserted, and
A gear is provided that meshes with the front edge of the head holder in its forward position, and this gear is linked to a rotary damper.

〔Example〕

Embodiments of this invention will be described below based on the drawings.

FIG. 3 is a plan view of an embodiment of this invention, and FIG. 4 is a side view of the same, in which a rotary oil damper device 13 is fixed to the side plate 7 of the container frame 6, and a gear 14 is attached to its rotating shaft 13a. Head holder 2 which is fixed and moves to the right when cassette A is inserted.
The front edge 2b of the gear 14 meshes with the gear 14.

According to this structure, when the cassette A is pushed in and the head holder 2 is lowered by the spring 9, the lowering speed is moderated by the damper device 13, so that the impact force of the magnetic head attached to the head arm 11 is weak. , has the effect of drastically reducing damage to the floppy disk.

In the embodiment shown here, the gear 14 is connected to the rotating shaft 13.
Although the gear 14 and the oil damper device 13 are shown to be directly connected to each other, when the oil damper device 13 is installed at a remote location, the gear 14 and the oil damper device are connected via a linking mechanism.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional device, Fig. 2 is a longitudinal sectional side view of the same, Fig. 3 is a plan view of an embodiment of this invention, and Fig. 4 is a perspective view of the conventional device.
The figure is the same side view. 2... Head holder, 2b... Front edge, 6... Container frame, 7... Side plate, 13... Oil damper device, 1
4...Gear, A...Cassette.

Claims (1)

[Scope of utility model registration request] A floppy disk drive device comprising a slider with a lifting cam that slides when a floppy disk is inserted, and a head holder that descends when the slider slides, wherein the head holder is configured to move forward when the floppy disk is inserted. A floppy disk drive device characterized in that a gear is provided which engages with the front edge of the head holder in its forward position, and this gear is connected to a rotary damper.