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DESCRIPTION JPS57111187

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DESCRIPTION JPS57111187
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view, a side sectional view, and FIG. 2 is
a side view of a microphone attachment structure according to one embodiment of the present
invention For explanation, a is a front view and b is a side view. In the figure, 1 is a microphone
cartridge, 2 is a weight, 3 is an elastic member, 4 is a support ring, 5 is a body, 6 is a spiral
spring, 61 is an outer end portion, and 62 is a spiral portion.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a
modification of a mounting structure of a microphone disposed in a body accompanying acoustic
vibration of a speaker box or the like, and particularly relates to a mounting structure of a
microphone supported by a cantilever spiral spring . For example, a microphone used for a
loudspeaker phone or the like for arranging a speaker and a microphone on the same body is
generally small and light, and a microphone with low vibration sensitivity is used, a microphone
of the microphone is provided with an appropriate weight And is fished down by an elastic
member such as rubber, spring or the like. Figure 1 shows the conventional microphone power 1
(! −、:、104. (A) is a front view, (b) is a detailed sectional view, 1 is a microphone
cartridge, 2 is the microphone cartridge 1, an elastic member 8 for supporting the microphone
cartridge 1, 4 a support ring supporting the microphone cartridge 1 via the elastic member 8, 5 a
body on which the support ring 4 is placed . By the way, the microphone cartridge 1 added with
weight f (σ '- weight 2 so that the natural vibration period of the small and light microphone
cartridge 1 attached in this manner becomes larger than the acoustic vibration cycle of the
speaker not shown 441 letters' q positive. The mass of the microphone cartridge 1 which is
fished down by a plurality of elastic body parts 1 composed of rubber, helical springs or the like
in the casing 5 and contains the ninth weight 2: R and the mass of the elastic part 3 and the lunar
material 1 The natural vibration period determined by the nuffiness of 4 was prevented from
sound propagation due to sound by increasing the sound, (the part -4 - day i 5 - vibration period.
However, since the structure of such a microphone mounting structure is vItIa, the number of
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components is increased and the cost is high. In addition, the support member 4 has a drawback
that it is difficult to adjust a plurality of the microphones 104, i. 2 Piece 1 'The present invention
was made to solve the above problems, and it is O, which has a degree of freedom of vibration in
2 to 8 directions and acoustic vibration propagating directly to a microphone, and a simple
cantilevered spiral It is focused on stopping with the spring vibration system. Briefly stated,
according to the present invention, in a structure for attaching a microphone in which a speaker
and a microphone are disposed in the same body, in order to prevent mechanical propagation
vibration due to the sound of the speaker, the microphone is connected to a spiral spring It is
characterized by being supported. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Hereinafter, embodiments of the present invention will be described in detail with reference to
the accompanying drawings. FIG. 2 (a) is a front view for explaining an embodiment of the
present invention, Is a flight side view, and the same reference numerals are attached to the same
parts as those of the previous time.
6 is a muddy spring made of an elastic member such as a phosphor bronze plate or the like and
formed with an outer end portion 61 and a spiral portion 62. In the above configuration, one end
portion of a cast winding wheeled car 6 having an elastic member such as a phosphor bronze
plate or the like formed in a pot-like shape is fixed to a predetermined position K of the body 5
by caulking or the like, At the center of spring 60, sound acoustic vibration skin - 104 - - 8! · As a
means to set it larger than the period, it is one with a microphone cartridge 1 with a weight 2
added. As is well known, the spiral spring 6 is supported on one side end portion, that is, one
point, on the body 5 which acoustically vibrates, so that for the & excitation in the X direction,
the spiral spring 6 is identified as the outer end portion 61 And the vibration is absorbed by the
plurality of wound-up portions 62. The vibration in the y direction and in the layer direction is
absorbed by the spiral portion 62, and the feature of the spiral spring 6 can easily absorb the
irregular mock vibration due to the sound by the plurality of vortex portions 62. Although the
spiral spring 6 formed of an elastic member has been described in detail with respect to the
embodiment in which a leaf spring is applied, the spiral spring 6 is not limited to a leaf spring but
may be an elastic circle 41ii or a filament. As apparent from the above explanation, according to
the installation of the microphone according to the present invention, the propagation vibration
of the sound recommendation can be prevented with a relatively simple structure, the economic
effect is extremely large is there.
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