KR940003450Y1 - Supporting device for magnetic head - Google Patents

Abstract

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Description

Magnetic Head Support

1 is a plan view of a conventional magnetic head support structure.

2 is a sectional view taken along the line A-A of FIG.

Figure 3a is an exploded perspective view of the side brake for the magnetic head support structure of the present invention, (b) is an exploded perspective view of a pin spring for the magnetic head support structure of the present invention.

* Explanation of symbols for main parts of the drawings

10: slider 15,16: obstacle

17: support 18: insertion groove

19: bushing ball 20: side brake

21: through air 22: home

23: spring piece 24: fixing protrusion

The present invention relates to a magnetic head support device, and in particular, a support device for absorbing vibrations with a swingable movable arm and a fixed arm for stably supporting a pair of magnetic heads for reading / writing memory information on a double-sided recording medium surface. It is about.

The conventional magnetic head support mechanism reciprocates by a drive motor (not shown) along one guide shaft 2 as shown in FIGS. 1 and 2, and is supported by a gimbal spring 5. Pivot springs to which the fixed arm 1 of the lower carriage supporting (4) upwards and the movable arm 3 of the upper carriage supporting the magnetic head 4 downward and the upper and lower carriages are given a constant tension to each other. (6) and a slide brake (7) for minimizing and stabilizing the shaking of the guide shaft and carriage.

Such a conventional head support device is made of a plastic with a projection keystone for supporting the head gimbal, so that there is a problem in that the resolution becomes unstable when reading / writing data. Since the innermost and outermost sides have different pressure and vibration damping trackability, they are unstable according to the difference in memory density, and the improvement of reliability is required.

Therefore, in the magnetic recording apparatus, the magnetic head support needs to stably and reliably read / write the memory information in the innermost track, and the magnetic head supported by the gimbal spring vertically rotates the disk by the pressure applied by the coil spring. Even if you press hard, it needs to work.

The present invention devised to solve such a conventional problem allows the magnetic head to follow up and down according to the fluctuation of the driving motor, and absorbs vibration by reducing frictional load while improving the progress by giving a constant pressure to the bushing part. To make it stable, it will be described in detail with the accompanying drawings as follows.

In forming a magnetic head support mechanism for reading / writing memory information on a double-sided magnetic disk, an insertion groove for a slide brake in a direction perpendicular to the bushing hole axis at the center of the upper and lower bushing holes 19 of the magnetic head slider 10 ( 18 is formed by digging, but forming the locking projections (15) and (16) on the bottom and sidewall of the insertion groove to form a support (17) in the middle.

The insertion grooves 18 are provided with plate-shaped side brakes 20, and the slide brakes 20 have holes 21 and grooves 22 fitted into the projections 15 and 16 of the insertion grooves 18. It is placed on the upper surface of the guide shaft 12 in front of the formed flat portion to form a spring piece 23 for increasing the contact force with the bushing surface.

Then, on the bottom surface of the rear end of the slider 10, the support protrusion 24 is protruded to install the pivot spring 25.

The pivot-shaped leaf spring 25 is formed by forming a support piece 26 having a pointed tip in the center, and extending the spring plate 27 to both ends of the support piece 26, and having a pivot shape. The spring 25 is installed and fixed with an adhesive, and then the lower head 28 is installed at the bottom position of the pivot spring 25.

The present invention made of this configuration is fixed to the magnetic head 28 of the lower side with a pivot spring 25, the magnetic head is to follow up and down according to the swing of the driving motor (not shown) has the advantage that the vibration absorption capacity is improved This increases the safety of the read / write.

That is, since the magnetic head can swing even in a track where the memory density is maximum, read / write is more stable and reliable than in the conventional track even at the maximum density track.

In addition, the spring piece 23 of the side brake 20 gives a constant pressure to the bushing moved through the guide shaft 12 to improve straightness, thereby significantly reducing frictional load, thereby reducing noise generated during SEEK. By minimizing the absorption of the vibration is stable to improve the reliability.

Claims (3)

In the mounting magnetic head support device in which the slider 10 is moved back and forth along the guide shaft 12, an insertion groove 18 is formed at a position between the bushings 19 of the slider 10, and a plate-shaped side brake ( 20) fixed to the insertion groove 18, the spring piece 23 at the tip presses the upper surface of the guide shaft 12, and installs a pivot-shaped leaf spring 25 on the bottom of the slider 10, the lower head body. A magnetic head support device configured to support (28). The method according to claim 1, wherein the seedling projections 15, 16 are formed in the bottom center and the sidewall of the insertion groove 18, respectively, and the through holes 21 and the grooves 22 are formed in the flat plate of the side brake 20. Magnetic head support device, characterized in that. 2. The magnetic head support device according to claim 1, wherein the pivot-shaped leaf spring (25) is fixed to the seedling projection (24) of the slider (10) with an adhesive.