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JPS541416

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DESCRIPTION JPS541416
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic longitudinal sectional view
showing the structure of a conventional hand-held microphone, FIG. 2 is a schematic view
showing a structure floating from the outer housing of the microphone unit in the same
structure, and FIG. It is a longitudinal cross-sectional view of a hand-held microphone. 2 иииииии
Outer housing, 2b ииииииии Head, 4 иииииииии Switch. 6 иииииииииииииииииииииииииииииииииииии Unit case, 8 ииииииииииииииии Rear
volume. 1-11 size-[-IEI2! # 5 g 111 111 m + 1 'l mouth II
[Detailed description of the invention] This invention relates to a hand-held microphone used for
simultaneous recording in 8 cabinet photography as t, in the prior art, to the point where the
frictional sound generated when touching the microphone jacket or cord is recorded It is a device
aimed at improving what was. In a conventionally used hand-held microphone, as schematically
shown in FIG. 1, the microphone unit 1 is fixed and attached to the outer casing 2 by the ring nut
3, and the switch 4 is attached. Used as the rear volume of (1) Iku / shi / g. When the
microphone unit 1 is fixed to the outer shell 2 as described above, there is a disadvantage that
when the handle portion 2a or the cord 5 is touched by a hand, the friction or vibration is
transmitted to the microphone unit 1 and recorded. Therefore, if you try not to transmit the
microphone unit 1 through the shock absorbing material 1 ░ 2 v 6 (? attachment, vibration etc.
to the unit 1), the rear volume is also lifted from the mantle along with the microphone unit 1
Since it is necessary to form a case portion 1a for maintaining the rear volume at the rear of the
case of the microphone unit 10 as shown in FIG. 2, insert the handle portion 2al 2 of the outer
shell and this case portion 1a is also a shock absorber 6 must be supported in the handle section
a. However, such a structure is impossible because the handle part 2-1 has a large number of
threads. In the present invention, as shown in FIG. 3, a small microphone unit 1 is housed in a
unit case 7 L, and (2) a rear volume 8 is provided at the rear of the microphone unit 1. It is
attached to the head 2b of the mantle 2. 9 shows a porous plate, 10 shows a foamed resin layer
for wind noise prevention 1F. The switch 4 and the cord 5 can be freely provided in the handle
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portion a because the handle portion 2a of the outer ring is not used as the rear volume of the
microphone in this manner, and the microphone unit 1 is Buffered on Q = 2; Since it is received,
it does not receive the vibration of the jacket or the cord, the friction noise-и) 1 ? ?. FIG. 4 is a
diagram showing the effect of the hand-held microphone of the present invention, showing the
sensitivity of the microphone unit 1 when the cord 5 is subjected to longitudinal vibration. A is
an example of the microphone of the present invention, and B is an example of a microphone of a
conventional structure as shown in FIG. Both are omnidirectional. In particular, it is understood
that the structure of the present invention is difficult to pick up a scratching noise (3) in the
range of 200 to 4000 cycles that are easy to be felt by the ear.
The hand-held microphone of the present invention is structured as described below and does
not pick up noise due to friction or vibration of the jacket or cord, so that good recording can be
performed even by non-experts at the time of 8 movie film shooting It can be used effectively in
applications other than movie recording.
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