JPH06103584B2 - Magnetic head - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a magnetic head, and in particular, a flying or sliding slider including an electromagnetic conversion portion of the head is fixed to a metal elastic plate (gimbal spring) to move the magnetic medium. The present invention relates to a magnetic head for a floating type or a contact sliding type magnetic storage device that slidably changes and follows.

[Conventional technology]

Conventionally, in this type of magnetic head, a slider including an electromagnetic converter is fixedly supported by a spring generally called a gimbal spring.The gimbal spring has a slider in a direction perpendicular to a medium surface, and a slider pitching and rolling in a medium traveling direction. Acts to allow exercise. Therefore, even if there are various vibrations of the medium and vibrations transmitted from the outside of the head via the gimbal spring, the slider will always be in stable contact with the medium, slide, or float from the medium if there is little warpage. It was a structure that can be done.

[Problems to be solved by the invention]

However, in the conventional magnetic head described above, particularly in the magnetic head for a flexible disk device, the warp of the medium is extremely large, which hinders the followability of the gimbal spring and the slider, and the distance from the head core gap to the medium surface is unstable. As a result, reading and writing of signals cannot be performed stably.

In order to cover the adverse effects of the medium as described above, there is a method of increasing the plate thickness of the gimbal spring and increasing the pressing force of the slider against the medium. However, increasing the thickness of the gimbal spring as a whole deteriorates the flexibility of the gimbal spring, hinders the followability of the slider, and does not contact the medium in an ideal state, so that the slider presses only a part of its sliding surface against the medium surface. In some cases, it happened. In such a situation, the separation length between the magnetic head gap and the medium surface increases momentarily, the performance of the head is not sufficiently reflected, the read voltage of the head decreases, and at the same time the medium becomes extremely unnatural. However, it suffers from local mechanical damage, resulting in local damage and the inability to retrieve the recorded signal again.

[Means for solving problems]

The magnetic head of the present invention is fixed to a support base at a fixed flat surface portion provided at one end side, holds a slider at the other end side, and a leg portion for allowing the slider to perform a swinging motion and a load applied to the slider. The tension spring having a predetermined plate thickness is superposed and welded to the load spring portion and the fixed flat surface portion of the gimbal spring integrally having the load spring portion for generating the.

〔Example〕

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

1 is a perspective view of an embodiment of the present invention, FIG. 2 is a perspective view showing a slider and a gimbal spring in FIG. 1, and FIG.
The figure is a perspective view showing the tension bending portion in FIG.

Gimbal spring 1 that fixedly supports the slider 2.
The load spring portion 6 and the fixed flat surface portion 7 are overlapped with the tension curved portion, and are welded to the load bar 4 and the support 5 by welding 8 and 8 ', respectively. As a result, the followability of the slider 2 depends only on the leg portions 9 of the gimbal spring 1, so there is no change compared with the case where the tension bending portions 3 are not overlapped. Further, by overlapping the tension curved portions 3, the plate thickness of the load spring portion 6 increases, and as a result, the load of the slider 2 transmitted from the load bar 4 increases, and as a result, the pressing pressure against the medium increases, The distance between the head core gap and the medium does not become unstable due to the warp of the body.
Also, by making the tension bent portion 3 have an appropriate plate thickness,
It does not push too hard against the medium.

〔The invention's effect〕

As described above, according to the present invention, by overlapping and fixing the tension curved portion on the load spring portion and the fixed flat surface portion of the gimbal spring, only the pressing pressure against the medium is increased by an appropriate amount without changing the followability. It provides a very simple and low-cost, high-load magnetic head, and can always perform stable signal recording / reproduction without being affected by the warp of the medium and without damaging the medium due to the excessive load. it can.

[Brief description of drawings]

1 is a perspective view of an embodiment of the present invention, FIG. 2 is a perspective view showing a slider and a gimbal spring in FIG. 1, and FIG.
The figure is a perspective view showing the tension bending portion in FIG. 1 …… Gimbal spring, 2 …… Slider, 3 ……
Tension bending part, 4 ... Load spring, 5 ... Support base, 6 ...
… Load spring part, 7… Fixed plane part, 8… Welding, 9…
leg.

Claims (1)

[Claims] 1. A leg portion that is fixed to a support base at a fixed flat surface portion provided at one end side and holds a slider at the other end side to generate a swinging motion of the slider and a load applied to the slider. A magnetic head characterized in that a gimbal spring integrally having a load spring portion for causing the tension spring portion having a predetermined plate thickness to be superposed and welded on the load spring portion and the fixed plane portion.