JPH01125707A - Magnetic head - Google Patents

Abstract

PURPOSE:To obtain a magnetic head which is easy to work and is stronger with respect to structure by making a cut of a supporting member, which is formed for relief of a winding, larger on the side of the junction surface to a head chip and smaller on the opposite side and connecting both sides with a slope. CONSTITUTION:Though a head chip 1 and a supporting member 3 joined to one surface of the head chip are conventional those, a junction surface 5 of a supporting member 2 joined to the other surface of the head chip 1 is H- shaped and a reinforcing part 6 in the middle of the H-shaped part has relief groove 7 which is deeply cut on the side of the junction surface 5 and is shallowly cut on the opposite side so that the reinforcing part 6 has an approximately triangular section. Consequently, the bottom of the relief groove 7 constitutes a slope 7a, and this slope 7a is guide for relief of a winding 4. Thus, a large space for the winding is taken in the junction part between the head chip and the supporting member and the relief structure is easily worked, and a sufficient junction area is obtained to obtain the magnetic head having a high junction strength.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head, and more particularly to an improvement in the escape structure of a winding wound around a head chip.

[Conventional technology]

Conventionally, a magnetic head consists of a head chip around which a winding wire is wound, and a support member (generally called a slider or reinforcing member) that is connected to this head chip and supports the head chip.
It consists of

FIG. 5 shows the appearance of such a conventional magnetic head. A head chip 1 around which a winding wire 4 is wound is plate-shaped, and a magnetic gap 1a is formed on one end surface of the head chip 1. A support member 2.3 is joined to both sides of the head chip 1, and the support member 2.3 and the end face of the head chip 1 constitute a sliding surface.

One of the supporting members 2.3 is a small plate-like member, and the other is a member with an angular cross-section.

FIGS. 6(a) and 6(b) show an example of one support member of the magnetic head having a cross-sectional shape. In the type (a), the bonding surface 5 to the head chip 1 is a simple long rectangular shape. However, it has the disadvantage that it is small and does not provide sufficient bonding strength. Type (b) has a reinforcement part 6 in the center of the L-shaped structure.
is provided to make the joint surface 5 T-shaped, which is preferable compared to type (a) in terms of joint strength and reinforcement of the head chip 1, but the method of machining the escape groove 7 of the winding 4 is limited, Furthermore, the machining itself is difficult, and the support member 2 becomes structurally weak due to the presence of the escape groove 7.

[Problem that the invention seeks to solve]

SUMMARY OF THE INVENTION An object of the present invention is to provide a structurally stronger magnetic head by solving the drawbacks of conventional support members, such as having a small bonding area or increasing the bonding area, which makes processing difficult.

[Means for solving problems]

In order to achieve the above object, the present invention makes the notch in the support member formed for escape of the winding wire larger on the side where it joins the head chip and smaller on the opposite side, and an inclined surface is formed between both sides. This allows the joint surface to be large, such as a T-shape or an H-shape, and this joint area is integrated with the support member by the middle part with a substantially triangular cross section, so that the support member is structurally strong and easy to mold.

〔Example〕

FIG. 1 shows an embodiment of the present invention, in which a head chip 1 and a support member 3 are shown separated.

The head chip l and the support member 3 bonded to one surface of the head chip 1 are similar to those of the conventional example, but the support member 2 bonded to the other surface of the head chip l is The reinforcing part 6 in the middle of the H-shaped part has a substantially triangular cross-sectional shape, and has an escape groove 7 that is deep on the side of the joint surface 5 and shallow on the side opposite to the joint surface. have. Therefore, the bottom surface of the escape groove 7 constitutes an inclined surface 7a, and this inclined surface 7a serves as an escape guide for winding &I4.

Note that the hatched portion of the head chip l in the figure is the joint surface 8 that joins with the joint surface 5 of the support member 2.

FIGS. 2, 3 and 4 each show a 2.3.degree. fourth embodiment of the present invention.

2.3 shows a modified shape of the support member 2. In the example shown in FIG. 2, the joining surface 5 is T-shaped and the relief part of the winding is not a groove shape, but the reinforced part of the support member 2 The cross section (horizontal cross section) of 6 is approximately triangular, and the inclined surface 7a serves as a guide for winding escape. The example shown in FIG. 3 uses a support member 2 having an H-shaped joint surface 5 like the embodiment shown in FIG. It differs from the embodiment of FIG. 1 in that it is guided from the side.

FIG. 4 shows an example of a magnetic head in which the support member 2 is used not as a slider but simply as a reinforcing member for the head chip 1. In this case, a notch 9 having an inclined surface 9a as shown in the figure may be formed in the shoulder portion of the support member 2, and the joining surface of the support member 2 to the head chip 1 will be approximately T-shaped.

〔Effect of the invention〕

As described above, in the present invention, the escape of the winding wire is guided by the inclined surface formed on the support member. The relief structure can be easily processed, and a magnetic head with a sufficient bonding area and high bonding strength can be obtained.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a magnetic head according to a first embodiment of the present invention;
2 and 3 are perspective views of supporting members in the second and third embodiments, respectively, FIG. 4 is a perspective view of the magnetic head of the fourth embodiment, and FIG. 5 is a perspective view of a conventional magnetic head. Figure, Figure 6 (
FIGS. 2A and 2B are perspective views each showing the structure of a support member in a conventional magnetic head. 1...Head chip, 2.3...
...Supporting member, 4... Winding wire, 5...
・・・・・・Joint surface, 7・・・・・・・・・Escape groove,
7a-・・・・・・Slope surface, 9a・・・・・・・・・
・Slope surface. Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] In a magnetic head consisting of a head chip around which a winding is wound, and a support member that is joined to this head chip and supports the head chip, a slanted surface with a deep notch on the joint surface side and a deep notch on the opposite side to the joint surface is supported. 1. A magnetic head, characterized in that the inclined surface is formed on a member and serves as a winding escape guide.