JPS62205567A - Magnetic disk head supporting device - Google Patents

Abstract

PURPOSE:To perform the positioning of a track with high accuracy by fitting the magnetic head having magnetic head core to the support arm integrally projecting a reinforcing wall at both sides via a gimbal spring and by placing a vibration control material on this support arm as well. CONSTITUTION:A magnetic head supporting device increases the rigidness by integrally projecting a reinforcing wall 6a at both sides excluding both ends parts in the longitudinal direction of a support arm 6 and the vibration transmitted to a magnetic head 3 can be absorbed and attenuated by fitting a damper material 4 with its bridging to the reinforcing wall 6a as well. The reinforcing material having high rigidness may be used instead of fitting the damper material 4 to the reinforcing wall 6a of the support arm 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Not applicable to industrial applications] The present invention relates to a magnetic head support device for a storage device used in an electronic computer, a slave computer peripheral terminal, etc.

[Conventional technology]

FIG. 9 is a schematic side view showing an example of a conventional magnetic head support device disclosed in, for example, Japanese Unexamined Patent Publication No. 56-127976. In FIG. , 4 is a media material such as Cricon resin or rubber, and 5 is a magnetic disk such as a floppy disk.

One end of a gimbal spring 2 is fixed to the head arm 1, and a magnetic head 3 is held at the other end with a certain space gap maintained between the magnetic disk 5 and the gimbal spring 2. It is pasted on the ring 2 from its fixed end side to the point where the amplitude of the gimbal spring 2 is maximum during resonance.

Next, the operation will be explained.

First, the magnetic head 3 is moved to the desired position for writing and reading. When the magnetic head 3 reaches the target position, the magnetic head 3 touches the rotating magnetic disk 5.
If the magnetic disk 5 is a floppy disk, when the magnetic head 3 contacts the magnetic disk 5 during one revolution, the magnetic head 3 will be slightly deformed in a undulating manner. magnetic disk 5
It is necessary to make it follow the deformation of the object, and for this purpose, the Gimbal Sgeling 2 is used to make it follow the deformation.

[Problem that the invention seeks to solve]

However, the conventional magnetic head support device is composed only of a spring element with a damper material 4t attached to the gimbal spring 2, so there is no damping element for the vibration of the gimbal spring 2 itself, so it is not affected by various external vibration forces. Vibration is likely to occur. Therefore, if a vibration force is applied from the outside and it resonates with the gimbal spring 2, the vibration of the magnetic head 3 will also increase, resulting in poor stability during flight, and the magnetic head 3 will be held on the desired track position. Therefore, reading and writing information to and from the magnetic disk 5 becomes uncertain. Further, due to differences in the magnetic head support structure, etc., existing methods of attaching the damper material 4 have problems such as not being able to attenuate vibrations.

This invention was made to solve the above-mentioned problems, and it suppresses the generation of vibrations transmitted to the magnetic head, and even if vibrations occur, it damps the vibrations. An object of the present invention is to obtain a magnetic head support device that enables accurate track positioning.

[Means for solving problems]

In the magnetic head support device Fi according to the present invention, a magnetic head having a magnetic helad core is attached via a gimbal spring to a support arm having reinforcing walls integrally protruding from both sides, and a vibration suppressing material is placed on the support arm. This is what I did.

[Effect]

The magnetic head support device according to the present invention is designed to attenuate various external vibrations by placing a vibration suppressing material on the support arm, thereby reducing vibrations generated in the magnetic head.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 is a front view showing one embodiment of a magnetic head support device according to the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a sectional view taken along the line A--A in FIG. 1. In the figure, 1 is a highly rigid head arm, 2 is a gimbal spring, 3 is a magnetic head, 4 is a damping material, 5 is a magnetic disk,
Reference numeral 6 denotes a support arm having a tapered tip and integrally protruding reinforcing walls 6a on both sides except for both ends in the longitudinal direction.

7 is a lead wire.

The base end of a support arm 6 that loads a load t is attached to the head arm 11, and a rotating magnetic disk 5 is attached to the tip of the support arm 6 via a gimbal spring 2.
A magnetic head 3 is attached which maintains a constant spatial gap between the two.

Furthermore, a damper material 4 for damping vibrations is installed on the reinforcing wall 6aK of the support arm 6.

The left magnetic head support configured in this way is reinforced on both sides of the support arm 6 except for both ends in the longitudinal direction! By integrally protruding the damper member 6a, the rigidity is increased, and by attaching the damper material 4 to the reinforcing wall 6a as a bridge,
The vibrations transmitted to the magnetic head 3 can be absorbed and attenuated.

In the above embodiment, the damper material 4 is attached to the reinforcing wall 6a of the support arm 6 by bridging it, but the reinforcing wall 6a
As a vibration suppressing material in place of the damper material 4, a highly rigid reinforcing material 8fr as shown in FIGS. 4 and 5 may be installed. In this case, by fixing the reinforcing material B to the reinforcing wall 6a, the rigidity of the supporting arm 6 is increased, and the natural frequency is shifted to a region where there is no adverse effect, thereby preventing resonance.

Alternatively, as shown in FIG. 7, a weight 9 may be placed on the support arm 6 to forcibly shift the natural frequency of the support arm 6 to prevent resonance.

Furthermore, the vibration suppressing material may be constructed by combining each of the embodiments in which the weight 9 is placed on the supporting arm 6 and the damper material 4 is bridged over the reinforcing wall Ga.

〔Effect of the invention〕

As described above, according to the present invention, reinforcing walls are integrally provided on both sides of the support arms of the magnetic head support device, and a vibration suppressing material is placed on the support arms. It is possible to attenuate or prevent resonance from occurring, and therefore vibrations transmitted to the magnetic head can be easily prevented.

This has the effect of allowing highly accurate trunk positioning.

[Brief explanation of drawings]

FIG. 1 is a front view showing a magnetic head support device according to an embodiment of the present invention, and FIG. 2 is a side view thereof. 3 is a sectional view taken along line A-A in FIG. 1, FIG. 4 is a front view of a magnetic head support device showing another embodiment of the invention, and FIG. 5 is a side view showing another embodiment. 6 is a sectional view taken along the line B-B in FIG. 4, FIG. 7 is a front view of a magnetic head support device l showing still another embodiment of the present invention, and FIG. 8 is a side view showing another embodiment. 9 are side views showing a conventional magnetic head support structure. Reference numeral 2 is a jimpulse spring, 3 is a magnetic head, 4 is a damper material, 5 is a magnetic disk, and 6 is a support arm. 6a is a reinforcing wall, 8 is a reinforcing material, and 9 is a weight. show. Patent applicant: Mitsubishi Electric Corporation (2 others) Figure 1 3: ε Glare Ghent. 4: To Da〉''-School 6: Support 1st class Maroko 6a Nio^5 Fine wall Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Procedure amendment (Voluntary) 1□.06W6・2i 8

Claims (4)

[Claims] (1) A gimbal spring that elastically supports a magnetic head having a magnetic head core, a support arm that applies a load to the magnetic head and has reinforcing walls integrally protruding from both sides, and a gimbal spring that is placed on the support arm. A magnetic head support device equipped with a vibration suppressing material. (2) The magnetic head support device according to claim 1, wherein the vibration suppression material is a damper material placed on a reinforcing wall of the support arm. (3) The magnetic head support device according to claim 1, wherein the vibration suppressing material is a highly rigid reinforcing material placed on the reinforcing wall of the supporting arm. (4) The magnetic head support device according to claim 1, wherein the vibration suppressing material is a weight placed on the support arm.