JPS6043253A - Floppy type magnetic disk - Google Patents

Abstract

PURPOSE:To reduce the damage to be inflicted on a medium and to improve the reliability of a device by bending a gimbals spring by tension. CONSTITUTION:A magnetic head slider 31a is fitted to a movable arm through the spacer 33a mounted on the gimbals spring 32a having tension bending 38, and the magnetic head slider is pressed at a loading point 39a with a load spring (not shown in a figure) which applies a head load, and put into head drooping state. The position of the tension bending is the point obtained by dividing the distance between the loading point 39 and the end surface 40a of a spacer in about 2:1 proportion when the shape of the gimbals spring is the same to the overall length. The gimbals spring 32b applied with tension bending 38b is curved as shown in a figure. At this time, the motion of the magnetic head slider in the direction of an arrow 37 is almost absorbed by the tension bending part.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floppy magnetic head, and more particularly to the shape of a gimbal spring of a floppy magnetic head.

Conventionally, this type of device, as shown in FIG. 1(a), has a pace plate 1 made of aluminum or other material, and a motor 3 equipped with a spindle head 2 for holding a medium (25 in FIG. 2). and a collet 4 for pressing and holding the medium against the spindle head 2, and one end has a lever 5 for opening and closing.
Arm mechanism 15 and magnetic head 6a + 6
A pair of movable arms 7a17b each having an arm part that can move up and down, one end of which is mounted on a carriage (not shown) via a movable part and connected to the rotary solenoid 8, are connected to the movable arms 7a and 7b. It consists of a cam 9 that contacts the arm and a stopper 10 that stops the cam 9.

Fig. 1(a) shows the state before the medium is installed, and Fig. 1(b) shows only the head area with the medium installed, the broken line is before the medium is installed, and the solid line is Shows the state after the media is installed. (The heads facing each other are not shown.) That is, in the broken line diagram of FIG. Henodosujiida 21a is in a state in which its head is bowed, being pushed by a load spring (not shown) that transmits the head load. The magnetic sliders are spaced apart from each other to facilitate attachment of the media. Now, when the device is actually used, the medium 25 is installed as shown by the solid line in Figure 1, and the medium 25 and the magnetic slider 21 are mounted.
b, the gimbal spring 22b, the spacer 23b, and the movable arm 24b are in a substantially parallel state.

The movement of the magnetic RAD slider at this time will be explained with reference to the broken line diagram in FIG. 1(b). That is, when the movable arm 24a turns, the corner 26 of the magnetic head slider 21a first comes into contact with the medium 25, and then the entire surface of the magnetic head slider comes into contact with the medium. Next, the magnetic rad slider 21a slides on the medium in the direction 27 of the arrow until a predetermined position where the medium 25, gimbal spring 22a, spacer 23a, and movable arm 24a are approximately parallel to each other.

This sliding motion, combined with the instantaneous speed at which the magnetic hent slider contacts the medium, has the disadvantage of damaging the medium and reducing the reliability of the device.

The purpose of the present invention is to solve the problem of the conventional floppy type magnetic head by applying tension bending to the gimbal spring, keeping in mind that the cause of the drawback of the conventional floppy type magnetic head is that the magnetic herad slider slides on the medium when it comes into contact with the medium. 6. To provide a floppy type magnetic head.

The present invention provides a double-sided floppy head which is equipped with a gimbal spring on which a magnetic herad slider is mounted, and which is assembled in such a way that a floppy head assembly, which is attached to a movable arm via a spacer, faces another floppy head assembly. (The drawback is that applying tension bending to the gimbal spring can damage the media.)
A completely resolved floppy type magnetic head can be obtained.

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

Figure 2 shows a floppy head assembly equipped with a 17717 bent gimbal spring according to an embodiment of the present invention. Indicates the condition. (Each opposing floppy head assembly is not shown).

That is, in this embodiment, as shown by the broken line in FIG. 2, a magnetic head slider 31a is mounted on a gimbal spring 32a subjected to tension bending 38a, and is attached to a movable arm 34a via a spacer 33a. The load point 39a of the RAD slider is pressed by a load spring (not shown) that applies a head load, and the head of the RAD slider is in a bowed state. If the shape of the gimbal spring is the same over the entire length, the position of this tension bending is approximately 2=1
This is the point divided into.

When the device is actually used, the medium 35 is attached to the magnetic slider 31b1 as shown in the solid line diagram in FIG. 2(b) in this embodiment.
Spacer 33b and movable arm 34b are in a substantially parallel state. The gimbal spring 32b subjected to the tension bending 38b is in a warped state as shown in the figure. At this time, the movement of the magnetic RAD slider in the direction of the arrow 37 is caused by the differential 23.
It is almost completely absorbed by the bending part.

Further, in this embodiment, tension bending is provided at one location, but depending on the situation, it may be provided at two or more locations without changing the effect.

As explained above, the present invention has the effect of reducing "IN scratches" on the medium by applying tension bending to the gimbal spring.

[Brief explanation of the drawing]

FIG. 1(a) is a conceptual diagram showing a conventional floppy device, FIG. 1(b) is a diagram showing only the area around the conventional magnetic head, and FIG.
The figure is a diagram showing the periphery of a magnetic head in an embodiment of the present invention. 21a, 21b, 31a, 31b--magnetic herad slider, 22a, 22b, 32a, 32b.
・Kawa・Gimbal Spring, 23a123b, 33a,
33b - mark spacer, 24a , 24b , 34a
, 34b-movable arm, 25 + 35""" medium,
38a, 38b...Tension bending portions.

Claims (1)

[Claims] A double-sided floppy head is equipped with a gimbal spring equipped with a magnetic herad slider, and is assembled so that a floppy head assembly attached to a movable arm faces another set of floppy head assemblies via a spacer. A floppy magnetic head characterized in that the gimbal spring is tension bent.