JPH0586103U - Voice control head shield case - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object to provide a shield case for a voice control head that solves the problem of defectiveness caused by adhesion of a center dummy block and that can be automated and reduce man-hours by electrical joining. [Structure] By providing a configuration in which a plurality of protrusions 9 provided on the center dummy block receiving portion 5 of the shield case 1 and the center dummy block 7 are electrically joined,
Audio head core and control head core Insertion window size is stable, core insertion failure is eliminated, and an excellent voice control head shield case that can reduce the number of assembly steps is obtained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a shield case of a voice control head.

[0002]

[Prior Art]

 In recent years, it has become necessary to take measures against the occurrence of defects by using an adhesive in the shield case of the voice control head.

A conventional voice control head will be described below. 3 and 4 show the structure of a conventional voice control head shield case. As shown in FIGS. 3 and 4, the center formed between the audio head core insertion window 3 and the control head core insertion window 4 of the R-shaped surface 2 on the tape contact surface side of the shield case 1 of the voice control head. An appropriate amount of adhesive 6 is applied to the dummy block receiving portion 5. After that, the center dummy block 7 is arranged at a predetermined position of the center dummy block receiving portion 5, and a predetermined weight is applied to the center dummy block 7. Thereafter, while maintaining this state, an adhesive having an extremely fast curing time is applied to a part of the contact portion with the center dummy block 7 and the R-shaped surface 2 to temporarily fix it. After that, the shield case 1 and the center dummy block 7 are bonded and fixed by curing the adhesive 6 under a predetermined curing condition.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional configuration, it is necessary to apply a predetermined weight until the adhesive is hardened after the center dummy block 7 is arranged in the center dummy block receiving portion 5, so that it cannot be automated and takes a lot of man-hours. Had.

After the adhesive 6 is applied to the center dummy block 7, the adhesive 6 is exposed to the audio head core insertion window 3 and the control head core insertion window 4 side from both end surface portions 8 of the center dummy block 7. The dimension A of the core insertion window and the dimension B of the control head core insertion window become narrower by the amount of the exposed adhesive, resulting in a core insertion failure that prevents the core from being inserted in the subsequent process, or a machine between the cores due to forced insertion. There was a problem that dimensional defects occurred. Further, there is a problem that a large amount of adhesive for temporary fixing and main fixing is required before adhesion and fixing.

The present invention solves the above conventional problems, and an object of the present invention is to provide a shield case of a voice control head for electrically connecting a center dummy block.

[0007]

[Means for Solving the Problems]

 In order to achieve this purpose, the shield case of the voice control head of the present invention has a structure in which a plurality of protrusions formed on the center dummy block receiving portion of the shield case and the contact portion of the center dummy block are joined by electric welding. have.

[0008]

[Action]

 With this configuration, the center dummy block and the center dummy block receiving portion are electrically connected to each other, so that the dimensions of the audio head core insertion window and the control head core insertion window are stable as compared with the conventional adhesive.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. The same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIGS. 1 and 2, a plurality of protrusions 9 are provided near the center and the end of the center dummy block receiving portion 5, and the center dummy block 7 is arranged on the protrusions 9 and electrically projected. When the shield case 1 is filled with the mold resin after being joined and fixed, the mold resin penetrates into the gap 10 between the center dummy block receiving portion 5 and the center dummy block 7, and the fixing is further ensured. ..

As described above, according to the present embodiment, the center dummy block receiving portion 5 and the center dummy block 7 are electrically joined by the protruding portion 9, so that a predetermined amount of time until the adhesive is hardened as in the conventional case is fixed. Since time is not required to be weighted, automation can be facilitated and processing man-hours can be shortened. Further, since the adhesive is not exposed from both end surface portions 8, the dimension A of the audio head core insertion window and the dimension B of the control head core insertion window are stable, which results in improper insertion of the audio head core and the control head core, or is impossible. It is possible to eliminate mechanical dimensional defects between the cores by inserting into the core. Moreover, since no adhesive is required, the material cost can be reduced.

[0012]

[Effect of the device]

 As is apparent from the above description of the embodiments, the present invention electrically connects the center dummy block with the plurality of protrusions of the center dummy block receiving portion, so that the mounting can be performed automatically as compared with the conventional bonding using the adhesive. The processing man-hours and the adhesive material cost can be reduced by the above, and the size of the audio head core insertion window and the control head core insertion window is stable because the adhesive is not exposed from both end surfaces of the center dummy block. It is possible to realize an excellent shield case for a voice control head that can eliminate defective insertion of the head core and control head core, and mechanical dimension defects between the cores due to excessive insertion.

[Brief description of drawings]

FIG. 1 is a perspective view of a shield case of a voice control head according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the shield case.

FIG. 3 is a perspective view of a shield case of a conventional voice control head.

FIG. 4 is a sectional view of the shield case.

[Explanation of symbols]

 1 Shield case 5 Center dummy block receiving part 7 Center dummy book 9 Protrusion

Claims (1)

[Scope of utility model registration request] 1. A center dummy block receiving part for connecting a center dummy block to a center dummy block receiving part of a shield case, wherein the center dummy block receiving part is formed with a plurality of projections which are in contact with and electrically connected to the center block. Shield case of voice control head with parts.