JPS63112860A - Magnetic head - Google Patents

Abstract

PURPOSE:To increase pressing force only against a medium by a proper amount without changing following property by superposing a tension bent section to a gimbal spring and welding them to be fixed up. CONSTITUTION:A gimbal spring 1 supporting fixedly a slider 2 and a tension bent section 3 are superposed and welded to a load spring 4 and a supporting base 5 fixedly. Consequently, the following property on the slider 2 is not affected at all because of no change in thickness on a leg section plate of the gimbal spring 1. Furthermore, by superposing the tension bent section 3, a plate thickness where a load is generated is increased while a load on the slider 2 to be transmitted from the load spring 4 is increased, thus increase of pressing force against a medium and unstabilization of a distance from a gap part of a head core to the medium are not affected with a warp on the medium, etc. In addition, the medium is never too much pressed by using a proper thickness to the plate of the tension bent section.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a magnetic head, and in particular, a floating or sliding slider including an electromagnetic transducer of the head is fixed to a metal elastic plate (gimbal spring), and the movement of a magnetic medium is controlled. The present invention relates to a magnetic head for a floating type or contact sliding type magnetic storage device that oscillates and follows the magnetic field.

[Conventional technology]

Conventionally, in this type of magnetic spatula I-', a slider including an electromagnetic transducer is fixedly supported by a spring generally called a gimbal spring, and the cymbal spring controls the movement of the slider in a direction perpendicular to the medium surface and the movement of the slider in the running direction of the medium. It functions to enable pitching and rolling movements. Therefore, even if there are various types of vibrations from the media or vibrations transmitted from the outside of the head via the gimbal spring, as long as the media has little warp, the slider will always be able to stably contact, slide, or float from the media. It was structured so that it could be done.

[Problem that the invention seeks to solve]

However, in the above-mentioned conventional magnetic heads, especially magnetic heads for flexible disk drives, the warpage of the medium is extremely large, which impedes the followability of the gimbal spring and slider, and the distance from the gap in the head core to the medium surface is unstable. As a result, reading and writing of signals cannot be performed stably.

In order to compensate for the adverse effects of the medium as described above, there is a method of increasing the thickness of the gimbal spring and increasing the pressing pressure of the slider against the medium.

However, if the overall thickness of the gimbal spring is increased, the flexibility of the gimbal spring will deteriorate and the followability of the slider will be inhibited, and the slider will not make contact with the medium in an ideal state and only a portion of its sliding surface will press against the medium surface. There were cases where this occurred. In such a situation, the separation length between the gap of the magnetic head and the surface of the medium increases instantaneously, the performance of the head is not fully reflected, the read voltage of the head decreases, and at the same time the medium becomes extremely unnatural. Because it will be subject to localized mechanical strain,
The drawback was that the signal that was supposed to have been recorded could not be retrieved again due to local damage.

[Means for solving problems]

The magnetic head of the present invention is fixed to a support base at a fixed plane part provided at one end side, holds a slider at the other end side, and has legs that enable rocking movement of the slider, and a load applied to the slider. The present invention is characterized in that it integrally includes a gimbal spring for generating the force, and a tension curved portion having a predetermined plate thickness is overlapped and welded to the gimbal spring and the fixed plane portion.

〔Example〕

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

Figure 1 is a perspective view of one embodiment of the present invention, Figure 2 is a perspective view showing the slider and gimbal spring in Figure 1, and Figure 3 is a perspective view of an embodiment of the present invention.
The figure is a perspective view showing the tension bending section in FIG. 1.

A gimbal spring 1 that fixedly supports a slider 2 and a tension curved portion 3 are overlapped and fixed to a load spring 4 and a support base 5 by welding. As a result, the followability of the slider 2 is not affected at all since there is no change in the thickness of the leg portion of the gimbal spring 1. Also, by overlapping the tension curved portions 3, the plate thickness of the load generating portion increases, and as a result, the load of the slider 2 transmitted from the load spring 4 increases, and as a result, the pressing pressure against the medium increases, causing warping of the medium, etc. The distance of the medium from the gap portion of the head core will not become unstable due to the influence of this. Furthermore, by making the tension bending portion have an appropriate thickness, the medium will not be pushed too hard.

〔Effect of the invention〕

As explained above, the present invention provides an extremely simple and low-cost high-load gimbal that increases only the pressing pressure against the medium by an appropriate amount without changing the followability by overlapping and welding the tension curved part to the gimbal spring. It provides a spring, so it is possible to always perform stable signal recording and reproduction without being affected by warpage of the medium and without damaging the medium due to excessive load.

[Brief explanation of the drawing]

Figure 1 is a perspective view of one embodiment of the present invention, Figure 2 is a perspective view showing the slider and gimbal spring in Figure 1, and Figure 3 is a perspective view of an embodiment of the present invention.
The figure is a perspective view showing the tension bending section in FIG. 1. 1...Gimbal spring, 2...Slider, 3
... Tension curved portion, 4... Load spring, 5... Support stand. 61

Claims (1)

[Claims] Legs that are fixed to a support base on a fixed flat surface provided at one end, hold the slider on the other end, and enable the slider to swing; and a gimbal spring that generates a load to be applied to the slider. What is claimed is: 1. A magnetic head comprising: a tension bending portion having a predetermined plate thickness; and a tension bending portion having a predetermined plate thickness being overlapped and welded to the gimbal spring and the fixed plane portion.