JPH027204A - Magnetic head - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF THE INVENTION The present invention relates to a magnetic head that is composed of a core assembly, a side block, and a fixed frame and that performs recording on a recording medium.

2. Description of the Related Art A conventional magnetic head of this type has a built-in magnetic core having a wound wire therein, as shown in FIGS. 5 to 7. That is, in FIG. 5, the fixed frame 1 has a recess 2 with one side open on the upper surface, and a thank-you part 3 for attaching the core assembly at one end in the longitudinal direction. The solid body 4 is fitted and inserted. The core assembly 4 consists of left and right core halves 4a, and has a winding 5 in the center. On the other hand, a side block 6 is inserted into the recess 2. Also the 6th
In the figure, the recess 2 in FIG. 5, that is, the surrounding side frame 2
There is no a, and a convex portion 7 is formed in the longitudinal direction at the center of the width direction,
A recess 8 corresponding to the protrusion 7 on the lower surface of the side block 6
In FIG. 7, the side block 6 has a trapezoidal cross section, and is fitted onto the upper surface of the fixed frame 1, which has a trapezoidal cross section.

Problems to be Solved by the Invention In a conventional magnetic head having an et-structured structure as described above, after inserting the core assembly 4 into the thank-you part 3, the side block 6 is inserted into the jig from the directions of arrows A and B. Or attach it by applying external force by some mechanical means. In other words, means for applying external force, a balance for applying external force, and means for fixing are required, and in the case of attaching with resin, temperature and time for curing are required. Further, there are problems such as the resin protruding between the core halves 48 of the core assembly 4 and the joint surfaces with the fixed frame 1, resulting in extremely poor workability.

The present invention solves the above problems, and aims to provide a magnetic head that can accurately attach and hold a side block to a fixed frame without the need for jigs or mechanical means. It is.

Means for Solving the Problems In order to solve the above problems, a magnetic head of the present invention includes a fixed frame, a core assembly attached to the fixed frame, and a side block, and a magnetic head attached to the fixed frame. The present invention is characterized in that the fixed frame is provided with a protruding piece that presses the side block from the upper surface side against the mounting surface of the fixed frame.

Operation With the above configuration, the side block attached to the fixed frame is pressed from the upper surface side of the side block to the mounting surface of the fixed frame by the protrusion provided on the fixed frame, so it is possible to press the side block attached to the fixed frame from the upper surface side of the side block to the mounting surface of the fixed frame. The side block can be accurately and reliably attached to the fixed frame and held without using any.

Example Hereinafter, one embodiment of the present invention will be described based on the drawings.

Fig. 1 is a schematic side view showing the assembled state of a magnetic head according to an embodiment of the present invention, Fig. 2 is an exploded plan view of the main parts of the same magnetic head, and Figs. 3 (^) and (B) are the same magnetic head. Indicates (＾
) is a schematic side view, and (8) is a schematic front view. Figure 1~
In FIG. 3, the magnetic head IOA rectangular parallelepiped fixing frame 1
2, a core assembly 13 fitted and attached to the vertical bow part 12a provided at one end of the fixed frame 12, and a plate-shaped side block attached to the upper mounting surface 12b of the fixed frame 12. It consists of 14. The fixed frame 12 has a portion extending through the target hole-shaped portion 12a upwardly from the mounting surface 12b to form a protruding portion 12c higher than 79 of the side block 14. A projecting piece 15 is provided to protrude from the upper end of 12C toward the mounting surface 12b.

A chamfered protrusion 15a having an arcuate cross section is formed on the lower surface side of the tip of the protrusion 15, and when the side block 14 is inserted between the protrusion 15 and the mounting surface 12b, the protrusion 15a The side block 14 can be pressed against the mounting surface 12b of the fixed frame 12 due to the elasticity of the side block 14 and the action of the projection 15a. Further, the upper sides 14a and 14b of both short side ends of the side block 14 are also chamfered.

When attaching the side block 14 on the mounting surface 12b of the fixed frame 12 to the magnetic head 11 described above, the shorter end of the side block 14 is placed along the mounting surface 12b k: between the side block 14 and the protrusion 15. The elasticity of the protruding piece 15 and the protrusion 15a can press the side block 14 against the mounting surface 12b and securely clamp it, and the contact between the protruding piece 15 of the side block 14 and the 4th surface 12b of the handle Pushing between the upper sides 14a and 14b of both ends of the side block 14
In addition, since the protrusion 15a of the protruding piece 15 is chamfered, → it can be carried out extremely smoothly from either end of the nod block 14, and there is no need to use tools, mechanical means, or contact means. I was able to install it reliably within 11 hours.

In the magnetic head 11 of the above embodiment, one protrusion 15 is provided, but if necessary, a plurality of protrusions 11!1 may be provided.Furthermore, the chamfering of the protrusion 15a of the protrusion 15 has an inclined surface as shown in FIG. Furthermore, the mounting surface 12b may be formed in a concave shape as shown in the conventional FIG. Even if J is provided, the installation position of the knob 14 can be ensured, and no deviation will occur.

Effects of the Invention As mentioned above, the magnetic head of this Komei was provided with a protrusion on the fixed frame that suppressed the side block to the mounting surface, so that when attaching the side block to the fixed frame, There is no need to use conventional jigs, mechanical means, or attachment means, and it can be easily and precisely handled!'J
G: It is possible to simplify and automate assembly work and reduce costs.

4.L of the drawing! Fig. 1 is a schematic side view showing the assembled state of a magnetic head according to an embodiment of the present invention, Fig. 2 is an exploded plan view of essential parts of the magnetic head, and Figs. 3 (A) and (B) are The same magnetic head is shown (^
) is a schematic side view, (B) is a schematic front view, FIG. 4 is a schematic side view of the main part of a magnetic head according to another embodiment of the present invention, and FIGS. 5, 6, and 7 are each a conventional magnetic head. FIG. 3 is an exploded perspective view of the magnetic head of FIG.

11...Magnetic head, 12...Fixed frame, 12b...
- Mounting surface, 13... Core assembly, 14... Side block, 15... Projection piece.

Agent Hiroshi Mori Moto Second figure Figure 4 fl-1-Ishimori Ki Head 12.-Fixed frame t4-11 inch A)''゛Ding low I group tS・-missing Fifth

Claims (1)

[Claims] 1. Consisting of a fixed frame, a core assembly attached to the fixed frame, and a side block, the projecting piece that presses the side block attached to the fixed frame from the upper surface side against the mounting surface of the fixed frame is A magnetic head characterized by being installed in a fixed frame.