JPH0472283B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a magnetic head core holder, and more particularly to an improvement in the structure of a support member and a core holder that fit and are fixed to each other.

Prior Art The structure of a conventional magnetic head core holder is shown in FIGS. 1 and 2. A support member designated by reference numeral 1 is provided with grooves 2 on both sides thereof, and is dimensioned so as to fit into a guide 5 provided on a core holder 6, which will be described later. Further, in the middle of the groove 2, a convex portion designated by reference numeral 2a projects from the bottom of the groove. After the core 3 in which the winding 4 is incorporated is held in the core holder 6 in which the terminal 7 is embedded, the aforementioned support member 1 is inserted along the direction of the groove 2 while aligning the guide 5 and the groove 2. Then push it in until the convex portion 2a rides over the end of the guide 5. As a result, the support member 1 has the effect of not easily slipping out in the opposite direction due to the convex portion 2a;
In order to do this, the convex part 2a and the guide 5 must be in a press-fit state, and a considerable force is required for press-fitting. Deformation of either or both of the core holder 2a and the guide 5 occurs, and as a result, the support member 1 becomes easily detached from the guide 5 of the core holder 6, and the reliability of holding the core 3 to the core holder 6 by the support member 1 becomes low. There was a drawback.

Purpose The present invention was made in order to eliminate the above-mentioned conventional drawbacks, and to simplify the shape of the fitting and connecting portion between the support member and the core holder, making it easier to mold and assemble. It is an object of the present invention to provide a magnetic head core holder configured with a magnetic head core holder.

Embodiments The present invention will be described in detail below based on embodiments shown in the drawings.

3 to 5 show an embodiment of the present invention, in which grooves 12 are provided on both left and right sides of the support member 11, so that the grooves 12 can be fitted into a pair of left and right guides 15 provided on a core holder 16. Each dimension is determined, and the lower end of the groove 12 is a chamfered portion 12a with an enlarged groove width. Also, a projection 1 extends downward parallel to the groove 12 from the lower end of the surface 11a perpendicular to the groove 12.
4 protrudes, and an inclined chamfered portion 14a and a hooked portion 14b are formed on the inside of the tip.

On the other hand, the core holder 16 that holds the core 13 and has the terminal 17 embedded therein is provided with a pair of opposing guides 15 that fit into the grooves 12 of the support member as described above.
Recesses 16a and 18 are provided to receive the protrusion 14 and hook portion 14b when assembled.

In such a configuration, the chamfered portion 12a at one end of the groove 12 of the support member 11 is
is inserted into the guide 15 of the core holder 16, and the upper surface of the support member 11 is pushed down along the direction of the guide 15. The groove 12 of the support member 11 is guided by the guide 15, and the protrusion 14 overlaps the recess 16a of the core holder 16, and the hook portion 1
4b is pushed outward due to elastic deformation and the concave portion 1 is formed.
8, and the elasticity of the protrusion 14 at the stepped portion with the recess 16a causes the hook portion 14b to return to its original shape and become hooked.

FIG. 4 shows the state after such installation. In this case, the insertion pressure is
Since the elastic deformation of the core holder 16 occurs easily, it is only necessary to apply a slight pressing force to the upper surface of the core support 11, and even if it becomes necessary to remove the support member 11, the recess 18 of the core holder 16 and
Chamfered portion 1 at the tip of the protrusion 14 of the support member 11
4a, the tip of a small screwdriver or tweezers can be inserted into the gap between the protrusion 14 and the recess 18, and the protrusion 14 can be easily removed by inserting the tip of a small screwdriver or tweezers and gently pushing the hook part 14b of the protrusion 14 out of the recess 18. Even in such a case, since galling does not occur during press-fitting as in the conventional example, the joint between the support member 11 and the core holder 16 can be reassembled without causing any damage.

Effects As is clear from the above description, according to the present invention, in the magnetic head core holder in which the support member is fitted into the core holder and the magnetic core is held in the core holder, the core holder has a guide part and an engaging part. a guide portion and a projection portion having a hook portion at the tip thereof are formed on the support member, and the guide portion of the support member is guided by the guide portion of the core holder so that the hook portion of the support member is guided by the guide portion of the core holder. Since it adopts a structure that engages the engaging part, it is possible to simplify the shape by molding, and it is easy to assemble and disassemble, yet it is excellent in that it can achieve a reliable connection. effective.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view illustrating the structure of a conventional example.
Fig. 2 is an assembled perspective view of the conventional example, Fig. 3 is an exploded perspective view illustrating the embodiment of the present invention, Fig. 4 is an assembled perspective view of Fig. 3, and Fig. 5 is a cross section of the embodiment of the present invention. It is a diagram. 1, 11... Support member, 2, 12... Groove,
3,13...Core, 5,15...Guide, 6,1
6... Core holder, 7, 17... Terminal, 12a,
14a... Chamfered portion, 14... Protrusion, 18... Recessed portion.

Claims (1)

[Claims] 1. In a magnetic head core holder in which a support member is fitted into a core holder and a magnetic core is held in the core holder, the core holder is provided with a guide portion and an engaging portion, and the support member is provided with a guide portion and a hook portion at the tip. A magnetic head core characterized in that a protrusion is formed, and a guide part of the support member is guided by a guide part of the core holder, so that a hook part of the support member is engaged with an engaging part of the core holder. holder.