JPS6031428B2 - Microphone windshield manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a microphone windshield, and allows a spherical windshield to be easily formed without using a ring.

Conventionally, the windshield of this type of microphone consists of a first windshield 1, a second windshield 2, and a ring 3 that mechanically connects both, as shown in Fig. 1, and it is essential to use the ring 3. Met.

The present invention aims to provide a method for manufacturing a windshield that does not require a ring corresponding to 3 in FIG. 1, as shown by 11 in FIG. 2, and will be explained below with reference to an embodiment in FIGS. do.

Here, FIGS. 3 to 8 show the manufacturing process of this windshield, and first, FIG. 3 shows a metal net when forming the windshield.

FIG. 4 shows the metal net 12 shown in FIG. 3 as shown in FIG. As shown in the figure, metals 13 and 14 are used during the first round processing.
This shows the relationship between metal net 12 on mold 13.
By setting the mold 14 to correspond to the mold 13, the metal net 12 is formed into a cylindrical shape as shown in FIG.

FIG. 6 shows the relationship between the molds 15 (151, 152) and 16 and the processing aid 17 made of rubber or the like when processing a material that has been under-processed into a spherical shape as shown in FIG. 5. .

Here, 18 is a first processed windshield corresponding to FIG. 9. In this case, the mold 19 has 151 and 192 that are separable as shown in FIG.
The mold 16 is inserted into the mold 1 with the machining assistant village 17 inserted into the mold 1.
By lowering the material in the direction 5, the processing auxiliary material 17 is compressed, and as shown in FIG.
The processed windshield 18 will be deformed. Then mold 16
By returning the mold 15 to the top, separating the mold 15 into 191 and 192, and removing the processing auxiliary material 17,
A windshield suitable for the recess 153 of the mold 15 (that is, a windshield corresponding to 11 in FIG. 2) can be formed.

In this case, if the recess 193 of the mold 15 is modified, the windshield 11
Needless to say, the shape will match that. As explained above with reference to the embodiments, in the present invention, especially since processing auxiliary materials are used, bulge processing (processing to widen the diameter at a position further inside the pipe than at the entrance) is easy. A spherical windshield can be formed without using a ring corresponding to 3 in the figure.

[Brief Description of the Drawings] Fig. 1 is a plan view showing a conventional microphone windshield, Fig. 2 is a plan view of a microphone windshield based on the method of manufacturing a microphone windshield of the present invention, and Figs. 3 to 8 are Each is for explaining the method of manufacturing a microphone windshield of the present invention.
Figure 3 is a plan view of the metal net, Figure 4 is a cross-sectional view of the jig used for the first machining, Figure 5 A shows the top surface and front view of the windshield that has undergone the first machining, and Figure 6 The figure is a sectional view of the jig during secondary machining, FIG. 7 is a machining state diagram, and FIG. 8 is a diagram showing the state after machining. 12...Metal net, 15,16...Mold, 17...
...・Processing auxiliary material. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] 1. After first processing the metal net into a pipe shape with a bottom surface, it is inserted into a receiving mold that partially has a spherical hole, and a moving mold corresponding to the mold is inserted through a processing aid made of an elastic material. A method for manufacturing a microphone windshield, characterized in that it is formed into a spherical shape by moving the windshield.