JPH03127319A - Magnetic head - Google Patents

Abstract

PURPOSE:To eliminate the use of an expensive mold for slider formation by individually machining slider main bodies and supporting parts and adhering them to form right and left sliders, and fixing a magnetic core between supporting parts of both sliders. CONSTITUTION:The continuous body of a slider main body 5 and that of a supporting part 6 are formed by machining and are put one over the other and are adhered with an epoxy adhesive 4 and are cut to prescribed dimensions to produce individual right sliders B. Left sliders A are produced in the same manner, and a magnetic core 3 is interposed between a pair of right and left sliders A and B cut in such a manner, and they are assembled and adhered with an epoxy resin and surface ground to form a magnetic head. Since the magnetic head is formed only by machining and adhesion of slider main bodies and supporting parts, each slider is easily formed, and the cost is reduced by the disuse of a mold, and the inexpensive magnetic head superior in mass productivity is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in magnetic heads used in FDDs and the like.

[Prior Art] Fig. 3 is an exploded perspective view of a magnetic head disclosed in Japanese Patent Application Laid-Open No. 63-31791111. (2) is the left slider body, (2) is the support part protruding from the
2a) is a support portion that is protruded in series from the inner surface of the support portion.

3 is a magnetic core which is clamped and fixed between these surface support parts (la) and (2a).

By the way, the material of the left and right sliders (A) and (B), which consist of the support part and the slider body, is usually titania ceramic, which has high wear resistance and mechanical strength, and is made of Mn.
- protecting the magnetic core (3) therebetween consisting of Zn ferrite. The method for assembling these is to temporarily fix the entire assembly to an assembly jig, pour epoxy adhesive onto each joint surface, heat harden it, and then polish it to make the contact surface with the recording medium flat. constitute a magnetic head.

In addition, each of the above sliders (A) and (B) has a support part (Ia) with a somewhat complicated shape on the right slider body (1) to prevent the distortion from becoming large due to the processing stress received in the polishing process after adhesive assembly. A support portion (2a) is also attached to the left slider body (2).

Therefore, the left and right sliders (A) and CB) cannot be formed by cutting alone due to the shape of the support, but must be done by both molding using a mold and additional cutting. Ta.

[Problem to be solved by the invention] Since the conventional magnetic head is configured as described above,
When forming the left and right sliders, mold costs are added in addition to cutting costs, resulting in high costs.

This invention was made to solve the above-mentioned problems, and it is an object of the present invention to avoid using expensive molds for forming left and right sliders.

[Means for Solving the Problems] In the case of the present invention, the slider body and the support portion are individually cut, and then they are glued together to form the left and right sliders, and a magnetic field is formed between the support portions of both sliders. The core is clamped and fixed using adhesive.

[Function] Since the magnetic head of the present invention is constructed as described above, there is no need for a mold when shaping the bottom of the slider.

[Example] An example of the present invention will be described below. That is, in FIGS. 1 and 2, (5) is the right slider body made of the same ceramic block as the conventional one, and (6)
) is a support part made of a block of the same quality as this and polymerized and bonded to the inner surface of the slider body with an epoxy adhesive (4), (7) is a left slider body also made of a ceramic block of the same quality, and (8) is a support part made of a block of the same quality. The support part is made of a block of the same quality as this and is polymerized and bonded to the inner surface of the slider body (7) with an epoxy adhesive (4). FIG. 2 is a perspective view showing the manufacturing process of the right slider (B), which consists of the slider body (5) and the support part (6), and these are first cut into the slider body (5) as shown in the figure. After forming a continuous body and a continuous body of the supporting part (6), both are polymerized and bonded using an epoxy adhesive (4), and then cut into predetermined sizes along the cutting line (C) shown in the figure. It is made as a single unit, and the left slider (A
) were made in the same way, and a magnetic core (
3), and are assembled using an epoxy adhesive in the conventional manner, and the surfaces are polished in the conventional manner to form a magnetic head.

By the way, as a result of a humidity resistance test (60°C, 90% RH, 72 hours) of the magnetic head of the present invention obtained in this example, the flatness of the recording medium contact surface of the magnetic head was 0°1μ.
The thickness was lower than that of the conventional example, and there were no particular problems caused by adhesive fixation of the support portion.

[Effects of the Invention] As described above, the magnetic head of the present invention is formed by simply cutting the slider body and the support part and adhering them together, which simplifies the formation of each slider and eliminates the need for molds. The cost is reduced by that amount, and as a result, a magnetic head that is highly mass-producible and inexpensive can be obtained.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a magnetic head according to the present invention, and FIG.
The figure is a process diagram for forming a slider according to the present invention, and FIG. 3 is an exploded perspective view of a conventional magnetic head. In the figure, (A) is the left slider, (B) is the right slider, (3) is the magnetic core, (4) is the adhesive, (5) is the right slider body, (6) is the support part, and (7) is the In the left slider body, (8) is a support part. Agent Masuo Oiwa 1st illustration slider °-fj order] fly 9- stone Δki core, adhesive fragrance fan 4ffJ slider main branch j + 4P, left, key strike ゛-o arc main branch temple GoP 1st aim 1st leap

Claims (1)

[Claims] A pair of left and right sliders consisting of left and right ceramic slider bodies formed by cutting, and ceramic support parts that are separately formed by cutting and polymerized and bonded to the opposing inner surfaces of each slider body. A magnetic head characterized in that a magnetic core is fixed between both of the support parts in a sandwiched state using an adhesive.