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JPS50146532

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DESCRIPTION JPS50146532
BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are cross-sectional views showing a
conventional directional microphone, FIG. 3 is a cross-sectional view showing an embodiment of
the directional microphone according to the present invention, and FIG. FIG. 6 is a cross-sectional
view of the yoke to be 10 ... E-k, io β ... taper surface, 10b ... projection, 6 ... diaphragm, 13 ...
yoke force bar with Takagi compensator. Fig.1 Fig.2-69 Fig.1-Fig.4 correction Fig.1-Fig.4
correction Fig.1-Fig.4 are corrected as follows. Fig. 1 Fig. 2-70-50-146 532 (3) Fig. 3 Fig. 4-71-
DETAILED DESCRIPTION OF THE INVENTION The present discussion relates to the improvement
of a directional microphone. In order to obtain directivity at the microphone, the WC must
introduce sound waves of different phases into the 'of the vibration system. In the prior art,
therefore, the structure shown in FIGS. 1 and 2 is generally used. Fig. 1 2 2 (□ (lli is magne y), (2
+ ii yoke, (371 ま plate, (4) is a ball, (5 is a pole guide, (67 is vibration like, ( 7); 1 yoke cover, (8)
high-pass reconnaissance 6 =, (91 is a braking material. And in the case of the directional
microphone, in order to give directivity 1, it was necessary to connect the yoke (2, the inside and
the outside in a stable manner). Therefore, it was not possible to bond to the yoke (2, or plate 3)
forming the diaphragm (6) magnetic circuit. Therefore, conventionally, as shown in FIG. 1, a yoke
cover (7+ upper section vC step portion (3a) k is formed, and there is a 接着 1 惚 (6) adhered
thereto, and in FIG. A pedestal (sa) k was formed on the inner surface of t81, and there was a
peristaltic force 111, a plate ta; However, according to this method, the voice coil of the
diaphragm (6) is of the magnetic circuit if the dimensional accuracy of the magnetic circuit and
the yoke cover (7) or the high-frequency auxiliary unit (8) is not increased. It may just enter the
air gap, contact the magnetic circuit, and so on. In addition, the yoke cover (7) and the mounting
compensator (Because they are separate parts, the management of product b, storage -11, etc. is
not only easy but also the number of assembling man-hours is high, and the cost is high. There
was. Is this device a diagonal defect? The purpose of this is to provide a new type of resin-molded
yoke cover or a less-expensive 11 rlii] piece of resin. Also, another object of the present invention
03-05-2019
1
is the directivity which can be extremely reduced by f- @ due to the error in assembling the
peristaltic temporary and the magnetic circuit. To provide an electronic phone. Another object of
the present invention is to provide a directional microphone capable of integrally forming the
yoke cover and the 1w I region compensator and reducing the number of parts. Next, an
embodiment of the present invention will be described with reference to the drawings. In the
figure, those denoted by the same reference numerals as in FIG. 1.2 indicate the same parts. (1) is
a Macnet, (4) is a ball, (5) is a pole guide, (6) is a diaphragm, and (9) is a damping material. The
IJLI is formed into a yoke and is tapered toward the upper end, and the outer diameter of the
face is manually formed.
Further, the above-mentioned yoke (IQ's tapered LI 11 (xoa) is formed with a surrounding lob). In
the drawing, six projections (iob) are shown. And, while adhering Patzkin (B) to this projection (1
ob), adhere and fix a vibrator (end 6 of the end part) to this Ba, Kin (B)! 1) The f'Ak of the gearing
and positioning of the magnetic circuit and voice coil is improved. Also, the sound 41 passage for
obtaining directivity is formed by the taper of the yoke QLI [ll8 (the gap between the stir and the
diaphragm 1 phrase, so there is no false 1 in terms of directivity). @ Is a backbrow that has been
欽 曾-^ in the kingdom of yoke αq), U: Z is a yoke cover with a high-frequency compensator, and
the above-mentioned backplate is sung 77M and stage 'M (13a) in a circular song The
deformation of the diaphragm 16) and the rudder of the diaphragm 16 are squeezed and the
diaphragm (6) is further fixed to one visor by the shape bored i5 O OJQh (13a). ) By fixing to 茫
yoke α, it was possible to produce an island compensator, a yoke cover, and a 會 -bar crest. In
the present invention, as described above, by forming the taper [i] 1 in which the outer diameter
is gradually reduced in diameter toward the upper part of the upper part of the yoke, and by
forming several projections of which the upper part is 而- Also, even if one of the di-sections of
the diaphragm is fixed to this projection, it is possible to take a number path for obtaining
directivity, so fI! Of the yoke cover by resin molding. 'No requirement is conventionally required,
and the I71 temporary positioning during assembly can be easily performed. In addition, since
the high-frequency compensator and the yoke cover can be integrated, the number of parts can
be reduced and the cost can be reduced, etc.
03-05-2019
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