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Description 1, title of the invention
Microphone windshield manufacturing method
3. Detailed Description of the Invention The present invention relates to a method of
manufacturing a microphone windshield, which does not use a ring [the spherical windshield can
be easily formed. Conventionally, the wind shield of this type of microphone consists of a first
wind shield 1 and a second wind shield 2 and a ring 3 for mechanically coupling the both, as
shown in FIG. 1, and it is essential to use the ring 3 there were. The present invention is intended
to provide a method of manufacturing a windshield which does not require a ring corresponding
to 3 in FIG. 1 as shown in FIG. 2 by 11 and will be described with reference to one embodiment
in FIGS. . Here, FIGS. 3 to 8 show the manufacturing process of the present windshield, and
firstly, FIG. 3 shows the metal net at the time of forming the windshield. FIG. 4 shows the
relationship of the metal 13.14 at the time of the first squeeze processing as shown in FIG. 5 and
FIG. 5 of the metal net 12 shown in FIG. The metal net 12 is squeezed into a cylindrical shape as
shown in FIG. 6 by arranging 12 and making the mold 14 correspond to 13. FIG. 6 shows the
relationship between molds 15 (151, 152) and 16 and a processing aid 17 made of rubber or the
like when the squeezed as shown in FIG. 5 is spherically processed. Here, 18 is a first processing
windshield corresponding to FIG. In this case, the first processing windshield 18 is inserted into
the mold 15 having the four portions 163 as shown in FIG. 8 in which the mold 19 has separable
parts 151 and 192 as shown in FIG. By lowering the mold 16 in the direction of EndPage: 1 mold
15 with the processing aid 17 inserted, the processing aid 17 is compressed, and as shown in
FIG. Thus, the first processing windshield 18 is deformed. Thereafter, the mold 16 is returned to
the upper side, and the mold 15 is separated into 191 and 192, and the processing auxiliary
material 17 is removed, whereby a windshield fitted to the recess 153 of the mold 16 (ie,
equivalent to 11 in FIG. 2). Can be formed. In this case, it goes without saying that the windshield
11 has a shape according to the shape if the recess 193 of the mold 16 is worked. As described
above, according to the present invention, in the present invention, since the processing aid is
used in particular, bulge processing (processing to expand the diameter at a position advanced
inward from the pipe inlet-processing to the inlet) is easy, A spherical windshield can be formed
without using a ring corresponding to 3 in FIG.
4. Brief description of the drawings. FIG. 1 is a plan view showing a conventional microphone
windshield, FIG. 2 is a plan view of the microphone windshield according to the microphone
windshield manufacturing method of the present invention, and FIGS. FIG. 3 is a plan view of a
metal net, FIG. 4 is a cross-sectional view of a jig at the time of first squeezing processing, and
FIG. The top view and front view of the primarily processed windshield, FIG. 6 is a cross-sectional
view of the jig at the time of the second processing, FIG. 7 is a processing state view, and FIG. 8 is
a view after processing . 12 mm mm mm metal net, 15.16------mold, 17-... processing auxiliary
material. Name of agent Attorney Nakao et al. 1 person Fig.1 Fig.2 Fig.5 Fig.6 fEndPage: 2
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description, jps5689193
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