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JPS5622875

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DESCRIPTION JPS5622875
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view showing a cine camera
microphone unit having a simultaneous edge and sound mechanism to which the basic example
of the present invention is applied, and FIG. 2 is an exploded view showing the configuration of
the microphone unit. Fig. 3 is an exploded view of the configuration of the head case assembly of
the micro unit, Fig. 4 is a side sectional view showing the configuration of the microphone
assembly of the microphone unit, and Figs. 5a, 5b and 5c are respectively the same microphone
assembly The top view, side view and bottom view showing the shape of the frame, FIG. 6 is an
exploded view showing the configuration of the microphone unit of the microphone assembly,
and FIGS. 7a and 7b are front views showing the shape of the weight of the same microphone
unit. 8A, 8B, and 8C are top views showing the shape of the first unit cap of the same
microphone unit. Side views and side views partially showing, FIG. 9 to FIG. 11 are perspective
views showing the shape of the elastic member, sectional views and front views showing the
state where it is attached, and FIGS. FIG. 13 is a schematic view of an elastic member used in
another embodiment of the present invention showing an embodiment of the vibration isolation
mechanism of the microphone according to the present invention. {Circle over (2)} Microphone
unit, 12: Support tool, good: Microphone assembly bar 14: First mesh, old: Head case assembly,
16: Opening, 1 γ: Head base, 18 ... recess, 19 ... attaching portion, 20 ... screw, 21 ... connecting
lines 22 ... connection electrode, 23 ... head case, 24 to 26 ... Second to fourth mesh, 27 to 29:
fifth to seventh mesh 30, 30: frame,-eta: microphone unit, 32: elastic member, effort Perforated
holes 34.35: locking portions 36. 37: through holes 38. 39: through holes 40: microphone body
41: mounting portion 42. · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · The first unit cap 45 · · Second unit
cap, 46 · · · through hole, 47 · · · first mounting portion, 48 · · · second mounting portion, 49 · · ·
cap portion, 50 · · · hanging portion, 51 .. 51: collar portion, 52: recess, 53: through hole, 54:
stopper, 30 ': frame, 31': microphone unit, 32 ': elastic member.
DETAILED DESCRIPTION OF THE INVENTION This invention is a microphone suitable for use in,
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for example, a tape recorder or a cine camera having a simultaneous recording mechanism.
Regarding M 樗. Recently, cine cameras equipped with a so-called simultaneous recording
mechanism capable of recording sound simultaneously with the shadowing are in widespread
use. Such a cine camera, size, 22 bar at the tip of the rod-like support extending from the camera
body. 如 J 取 付 け る 如 を 如 11 11 11 11 11 11 11 同期 同期 同期 同期 同期 同期 同期 同期 同
期 11 11 11 11 11 11 11 11 11 11 11 11 11 11 ち ち ち ち ち ち ち ち ち ち ち ち ち ち 11 ナ
ナ ナ ナ ナ ナ ナ ナ ち ち ち ち ち ち. By the way, as described above, the front end of the rodlike support simply protruding from the camera body (7 mm only by attaching the C microphone,
mechanical imaging movement by rotation of a motor receded by the cine camera body when the
cine camera is operated) Was transmitted to the microphone through the rod-shaped support,
and when the 87N ratio was changed, there was a short delay. In addition, this problem is not
limited to cine cameras, even if it is applied to an i-tape recorder etc., the mechanical image
movement of the motor is what causes the adversity to the internal reconnaissance microphone.
For this reason, conventionally, measures have been taken to remove each moving image by, for
example, wrapping the microphone with an elastic relief member, but it has not been possible to
obtain a sufficient effect if any effect can be obtained. Therefore, conventionally, it has an @
shooting effect sufficient to remove an adverse effect due to shooting on the microphone, and
can stably and reliably support the microphone), and it can be f-, which meets the needs of the
user There is a strong need for the development of a root protection mechanism that can be
answered sufficiently. The present invention has been made based on the above-mentioned
circumstances, and it is an object of the present invention to provide a very good microphone
protection mechanism capable of obtaining a sufficient root protection effect and supporting the
microphone stably and reliably. Do. Hereinafter, a basic example in which the present invention
is applied to a cine camera equipped with a simultaneous recorder front will be described in
detail with reference to the drawings. In FIG. 1, reference numeral 11 denotes a microphone unit,
which is attached to a cine camera body (not shown) via a support 12 in the form of a rondo
antenna. This microphone unit, as shown in FIG. 2, covers a circular living microphone annulus I
713 with a first mesh 14 formed in a cylindrical shape by a fine mesh member of a fine mesh,
and a substantially dome shape on it. The cover 16 is formed by covering the opening 16 of the
Hend case anose / bri 15 with a head space 17. Then, the mounting portion 19 of the concave
portion 1g VC support 12 in the back surface D of the above-mentioned hard base 17 is fitted
and tightened with the screw 20, the microphone unit Eno and the support 12 are attached. Ru.
Further, 'fJ @ Q @ z J' 22 of the microphone assembly 13 is formed in the mounting portion 19
of the support 12 through the through hole # 1 shown in FIG. 1 which passes through the head
base 17 and is connected to the nine connection electrodes 22. This connection electrode 22 is
connected to the microphone input of a ring for muffle sound of the main camera body via a
tangent line (not shown) which inserts the inside of the support 12. Fig. 3 shows the details of
the head case assembly 15 as h = own head case assembly 15 and it is cylindrical and the inside
of the head case 23 which is cut out at a large number of @@ or a plurality of places (3 places in
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the case shown) Each of the second to fourth matsyu 24 to 26 is formed in a cylindrical shape
with different sizes of sword-like members of different roughness, and is received. Roughness at
one end, with each other) Futoshiki respectively different net member 'H-11'. In the book, the
fifth to seventh metal plates 2 to 29 formed in a hemispherical shape different from each other
are attached in an overlapping manner. FIG. 4 shows a floating line of the microphone assembly
13. The microphone unit 31 is loosely inserted in a round frame 30 and suspended in the frame
30 by an elastic member 32 such as rubber. As shown in FIGS. 5a, 5b and 5e, this frame 30 has a
large number of through holes 33 on its side, and both of its parts have a locking portion at
approximately 90 ° 1 Danura, respectively. 4, 35 are formed. The locking portions 34. 35 'd are
formed by connecting four large diameter through holes 36. 37 and 1 · J \ through holes 38. 39,
respectively. Here, as shown in FIG. 61, the microphone unit 31 has a microphone body 40, a
weight 42 having an attachment @ 4 for reflecting the rear peripheral side surface of the
microphone book i44o, and the microphone body 40 at the front. The second unit cap 45 covers
the first two-unit knit cap 44 and the second unit cap 42 from the rear surface side. The weight
42 is made of metal and has a cylindrical shape as shown in FIGS. 7 (a) and 7 (b), and a through
hole 46 is formed in the center of the weight. The single-piece portion of the weight 42 is
provided with mounting portions 4 at intervals of approximately 90 °. The mounting portion 41
has a step in the shape of a side crank, and a first mounting portion 47 and a second mounting
portion 48 are formed. The weight 42 and the microphone main body 40 are attached by fitting
the side surface between the rear portions of the microphone main body 40 between the first
attachment portions 47.
At this time, the connections @ 21 and 21 extending from the rear of the microphone main body
40 insert the through holes 46 of the weight 42! 7 (b) is a cross-sectional view of a portion
shown by a dot-and-dash line in FIG. 7 (b), and the first unit described above. The cap 44 forms a
hanging portion 50 having a diameter smaller than that of the cap portion 49 and having a
substantially same pillar shape at one end portion of the substantially circular cap portion 49 as
shown in eighth IEfal, (b) and (c) K. The side surfaces are generally convex. A pair of flanges
51.51 is formed at an appropriate interval on the tip of the hanging portion 50, and a recess 52
is formed. Then, when the opening of the one cap 49 is inserted between the positioning of the
microphone body 40 and the second attachment portion 48 of the weight 42, the microphone
body 40 and the first node cap 44 are It is attached. FIG. 8 (C) is a cross-sectional view of the
portion indicated by the -a chain line in FIG. On the other hand, at π 2, the gutter cap 45 is a
book attached to the rear of the weight 42 in an open collar configuration with the first unit cap
44. Next, a means for suspending the nine microphones "entrain" configured as described above
in the frame 30 via the elastic w material 32 will be described. That is, as shown in FIG. 9, the
elastic member 32 is formed in a cross shape, and a through hole 53 is formed in the central
portion thereof. In addition, at each end, there is a scaly island 4, →-! In each case, a striker 54 is
formed. Then, as shown in FIGS. 10 and 11, the through holes 53 of the first elastic member 32
are fitted with the concave portions 52 formed in the hanging portion 50 of the first unit cap 44.
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Next, one microphone unit 31 is loosely inserted into the frame 30, and the stopper 54 of the
elastic member 32 is taken out of the frame 3θ through the large diameter through hole 36 of
the frame 30 and the nucleus stopper 54 is Slide in the direction of the small through hole 38.
For this reason, the stopper 54 is engaged with the locking portion 34 of the frame 30, and
eventually the first unit cap 44 is suspended via the elastic member 32 at a substantially central
portion of the frame 9θ as shown in the eleventh case. It is. Further, the second unit cap 45 is
also suspended by the elastic member 32 in substantially the same manner as in the frame 30 in
the same manner as in the 1011 and 4111, and as a result, the microphone unit L "is in the
frame 30 as shown in the fourth country. Hanging on the As a matter of fact, the basic example
busy clerk configured as above! According to the protection mechanism of the microphone, it is
possible to prevent the model-like imaging motion due to the rotation of the motor of the cine
camera main body from being absorbed by the elastic member 32 and transmitted to the
microphone unit 31, Thus, problems such as deterioration of the S / N ratio can be eliminated.
In general, the microphone unit 3) is pulled from four directions (total eight directions at both
ends), and the elastic member 32 is the suspension of the first and second unit caps 44 and 45
and each member of the frame 'to + h The microphone unit 31 can be stably and reliably
supported since it is securely attached to the portion 34.35. Furthermore, in the above-described
basic example, the microphone unit 31 is suspended from four directions, but it may be three
directions as appropriate. By the way, the root preventing mechanism of the microphone
according to the basic example configured as described above has a plurality of microphone
units 31 each of which has a uniform thickness in the radial direction from the center portion at
both ends within the cylindrical frame 30. In the state of being suspended 3 by the elastic
member 32 of the above, it is not always possible to exhibit sufficient ability in the damping
effect of the vibration transmitted from the outside. That is, since each elastic member 32 has a
uniform thickness between the microphone unit F side and the frame 30 side, it is transmitted to
the microphone unit uIl that sufficiently attenuates the imaging motion transmitted to the frame
30 side. It was easy to do it. Therefore, this invention is made with particular attention to the
point that a car is used, and it is supported by a plurality of elastic members of which the
diameter is large on the 7th frame side and small on the microphone unit side. According to the
seventh aspect, the present invention is characterized in that the imaging motion transmitted
from the outside can be effectively attenuated. Next, one embodiment of the present invention
will be described in detail with reference to FIG. 12 based on the following requirements.
However, in this case, in the configuration according to the basic example shown in FIG. 1 to 11
'@ mentioned above, the configuration excluding the microphone unit suspension support 0]
holding portion relationship shown in FIG. 4 to FIG. The description of the basic example will be
omitted as it is similar to the basic example. That is, FIG. 12! Similarly to the basic example
described above, al + tb + vc 30 'is a cylindrically formed frame having a large number of
through holes on the side and locking portions (in this case, 1000% in this case) on both sides.
Further, L 'is a microphone unit configured in the above-described basic example and the open
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collar (except for the cap portion). The microphone unit si 'is loosely inserted in the cylindrical
frame 30', and has an uneven thickness integrally with the caps 44 'and 45' made of, for
example, rubber etc. attached to both ends of the microphone unit si '. It is suspended and
supported in the frame 30 'via a plurality of elastic leaf-like elastic members 32' which project
from the same end face.
Here, each of the plurality of taber-like elastic members 32 'has a large diameter on the frame
side and a small diameter on the microphone unit side so that the thickness is uneven and
projected, and the stock 1 鴫 having at the light traveling end portion is uniform. 54 'is to be
inserted into and locked to a locking line which is thrown at both ends of the cylindrical frame
30', and as a result, the microphone unit 31 'is coaxial with the central portion of the cylindrical
frame 30'. In such a configuration, the microphone unit 31 ′ has a plurality of tapered shapes
whose thickness is uneven at both ends thereof. Since it is supported via the elastic member 32 ',
the elastic member 32' is a microphone as a whole without sufficiently attenuating the frame
30'4 RVc transmitted external vibration and transmitting it to the microphone unit 31 'side.
Moreover it supports the knit L〆 stably and reliably becomes possible to exhibit a sufficient
removal root effect. FIG. 13 shows another practical example in which a step-like elastic member
32 'is used which is not tapered but is gradually changed in thickness by use as it is from the
scene of the cap 44'. Also in this case, as in the case of the upper side, it is possible to exert a
sufficient removing effect. In the case of the book 211, the whisker-like elastic members 32 ', 32'
having different lengths from each other are not necessarily integral with the caps 44 ', 45'.
Table, this invention is not limited to the above-mentioned embodiment, and it does not deviate
from this summary and till! ! Can be implemented in various ways. Therefore, as described above,
according to the present invention, it is possible to provide a very good root protection
mechanism of the microphone which can obtain a sufficient root protection effect and can stably
and reliably support the microphone. .
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