JPH0528563Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a magnetic head, and particularly to positioning when fixing a hold case within a shield case.

[Conventional technology]

Conventionally, in magnetic heads, a recess is formed at approximately the center of the outer surface of one of a pair of hold cases, and a leaf spring member for positioning the hold case is inserted into this recess. By overlapping a pair of hold cases and fitting them into the shield case, the other hold case is positioned on the inner wall surface of the shield case by the elastic force of the leaf spring member for positioning the hold case, and the pair of hold cases is The case was fixed.

In addition, a coupling spring member has traditionally been used to couple a magnetic head with another magnetic head, but in conventional magnetic heads, the coupling spring member is unrelated to the positioning of the hold case within the shield case, and is It was provided separately from the leaf spring member for use.

[Problem that the invention attempts to solve]

As mentioned above, in conventional magnetic heads,
When a magnetic head is connected to another magnetic head, a connecting spring member is provided separately from the leaf spring member for positioning the hold case, which increases the number of parts and requires additional work to position the hold case and connect the magnetic head. There was a problem in that work efficiency was low because coupling with other magnetic heads had to be done in a separate operation.

An object of the present invention is to provide a magnetic head that reduces the number of parts and improves work efficiency by integrating a positioning leaf spring member and a coupling spring member.

[Means for solving problems]

The magnetic head of the present invention has a magnetic head in which a pair of holding cases for holding channel constituent members are positioned and fixed within a shield case and are coupled to another magnetic head by a coupling spring member. a tapered recess provided on an outer surface of one of the hold cases; and a plurality of protrusions formed on an upright piece of the coupling spring member that is inserted into the shield case; is firmly fitted into the tapered recess, the plurality of protrusions press the one hold case, thereby positioning the other hold case on the inner wall surface of the shield case, and fixing the pair of hold cases. It is characterized by

[Effect]

In the magnetic head of the present invention, when the upright piece of the coupling spring member is strengthened into the tapered recess provided on the outer surface of one of the pair of hold cases, the plurality of protrusions formed on the upright piece extend from one side to the other. By pressing one hold case, the other hold case is positioned on the inner wall surface of the shield case, and the pair of hold cases are fixed.

〔Example〕

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

1a to 1c are a longitudinal sectional view, a transverse sectional view, and a bottom view of a magnetic head according to an embodiment of the present invention. The magnetic head of this embodiment includes a recording/reproducing channel component 1 consisting of a pair of left and right magnetic cores 11a and 11b, a shield plate 12, etc., and an erasing core 2.
1, a pair of hold cases 3a and 3b made of non-magnetic material such as permalloy that hold these channel members 1 and 2, and a shield case 4 that houses the hold cases 3a and 3b. , a coupling spring member 5 inserted between one hold case 3a and a shield case 4.

The coupling spring member 5 is made of a stainless steel plate or the like, and serves to mechanically couple the magnetic head of this embodiment with other magnetic heads. Press the hold case 3a of the pair of hold cases 3
It also serves to position and fix a and 3b within the shield case 4.

A pair of deflection prevention protrusions 31a and 31b are formed at substantially central positions on the inner surfaces of the pair of hold cases 3a and 3b so as to be in mutual contact with each other.

Furthermore, at approximately the center of the outer surface of one hold case 3a, as shown in FIG. An upright piece 51, which is provided to stand up at one end of the coupling spring member 5, is tightly fitted into the recess 32.

As shown in FIG. 3, the upright piece 51 of the coupling spring member 5 has a pair of left and right wedge-shaped protrusions 5 near the top of the outer surface.
1a and 51b, and a vertically elongated circular protrusion 51c at the center of the outer surface.

In order to assemble the magnetic head of this embodiment configured as described above, the hold cases 3a and 3b containing the recording/reproducing channel component 1 and the erasing channel component 2 are inserted into the shield case 4.
After fitting in, the upright piece 5 of the coupling spring member 5
1 into the tapered recess 32 from the lower surface side through the shield case 4, the wedge-shaped protrusions 51a,
51b and the oblong projection 51c press the slope 32a of the recess 32, that is, the hold case 3a
The hold case 3b is positioned on the inner wall surface of the shield case 4 by pressing the hold case 3a.
and 3b are fixed.

When the upright piece 51 of the coupling spring member 5 is firmly fitted into the tapered recess 32 from below through the shield case 4, a strong force is applied to the hold case 3a by the coupling spring member 5. 3a is prevented from being bent by the hold case 3b and the shield case 4 via the bending prevention protrusions 31a and 31b.

[Effect of idea]

As explained above, according to the present invention, a tapered recess is provided on the outer surface of one of the pair of hold cases, and multiple protrusions are formed on the standing piece that is inserted into the shield case of the connecting spring member. When the standing piece is tightly fitted into the tapered recess, the multiple protrusions formed on the standing piece press against one of the hold cases, thereby positioning the other hold case against the inner wall surface of the shield case and fixing the pair of hold cases together, thereby reducing the number of parts required and
This has the effect of improving work efficiency.

[Brief explanation of the drawing]

1a to 1c are a vertical sectional view, a horizontal sectional view, a bottom view, and a second sectional view showing a magnetic head according to an embodiment of the present invention.
1 is an enlarged perspective view showing the main part of the hold case shown in FIG. 1, and FIG. 3 is an enlarged perspective view showing the main part of the coupling spring member shown in FIG. 1. In the figure, 1...recording/reproducing channel constituent member, 2... erasing channel constituent member, 3a, 3b
...Hold case, 4...Shield case, 5
...Coupling spring member, 11a, 11b...Magnetic core, 12...Shield plate, 21...Erasing core, 3
1a, 31b...Protrusion for preventing deflection, 32...Tapered recess, 32a...Slope, 51...Upright piece, 5
1a, 51b: cuneiform process, 51c: oblong process.

Claims (1)

[Claims for Utility Model Registration] A magnetic head in which a pair of hold cases for holding channel constituent members are positioned and fixed within a shield case and are coupled to another magnetic head by a coupling spring member, comprising: a tapered recess provided on the outer surface of one of the hold cases;
a plurality of protrusions formed on an upright piece inserted into the shield case of the coupling spring member;
When the upright piece is firmly fitted into the tapered recess, the plurality of protrusions press the one hold case, so that the other hold case is positioned on the inner wall surface of the shield case, thereby forming the pair of hold cases. A magnetic head characterized in that: is fixed.