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JP2006324863

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DESCRIPTION JP2006324863
An object of the present invention is to provide a microphone that does not cause deformation on
a shock mount side even when stress is applied when wiring a connection cord drawn from a
microphone unit. A microphone unit (12), a shock mount (22) resiliently supporting the
microphone unit (12) and attached to the device side, and a connection cord (32) drawn from the
microphone unit 12 side and wired to the device side In the microphone 11, the shock mount 22
is a hollow support portion 23, a holding portion 25 connected to the top side to hold the
microphone unit 12, and a fixing portion 26 connected to the base end and attached to the
device side. An introduction port 24 for introducing the connection cord 32 drawn from the
microphone unit 12 side into the internal space 22a is provided at an appropriate position of the
hollow support portion 23, and the lower surface opening 26a of the fixing portion 26 is
provided. It was possible to freely take out through. [Selected figure] Figure 1
マイクロホン
[0001]
The present invention prevents deformation on the shock mount side that elastically supports the
microphone unit even if stress is applied to the connection cord when wiring the connection cord
drawn from the microphone unit side to the device side It is a technology related to a
microphone.
[0002]
In various types of microphones such as those for handheld use, measures against vibration
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noise generated by the vibration of the microphone case become a problem.
To solve this problem, the microphone unit is inserted and held in a ring-shaped shock mount,
and then the microphone noise is reduced by fitting and holding the inside of the microphone
case. Are also disclosed, for example, in Patent Document 1 below. Japanese Patent Application
Laid-Open No. 11-331987
[0003]
On the other hand, FIG. 2 is an explanatory view showing a conventional example of a relatively
small microphone used for incorporation in the device side, wherein (a) is a front view and (b) is
a right side view c) shows a rear view respectively.
[0004]
According to the drawing, the microphone 1 is formed in such a manner that the acoustic
performance is not deteriorated by separating the microphone unit 2 side from the fixed side.
[0005]
That is, the microphone unit 2 has a shock mount 3 made of an elastic material such as rubber or
elastomer interposed between the microphone unit 2 and the fixed side provided with an
appropriate fastening structure, and the shock mount 3 elastically supports the device side. It is
possible to reduce the vibration noise generated due to the vibration transmitted from.
As the shock mount 3 is formed softer as a whole, vibration noise can be reduced.
[0006]
In this case, the shock mount 3 is provided with a support column 4 of an appropriate length,
and is formed on the top side of the support column 4 to hold the microphone unit 2 in a state in
which the front side 2a and the rear side 2b are exposed. A holding portion 5 and a fixing portion
6 connected to the base end side of the support column 4 and attached to the device side are
integrally formed as a whole using an elastic material such as rubber or elastomer.
[0007]
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Moreover, the microphone 1 is provided with the connection cord 8 which is drawn out from the
back surface 2 b side of the microphone unit 2 and is wired to the device side via the outside
thereof.
The connection cord 8 uses a shield wire to prevent generation of noise due to electrostatic
coupling.
[0008]
By the way, although a shielded wire is used as the connection cord 8 drawn from the back
surface 2b side of the microphone unit 2 in the microphone 1 shown in FIG. 2, stress is applied
when wiring it to the device side. There is a disadvantage that the shock mount 3 is displaced by
the stress, in particular, the support main body 4 side.
[0009]
To such a disadvantage, the occurrence of displacement on the shock mount 3 side can be
reduced to some extent by using the thin and soft connection cord 8.
However, on the other hand, there is also a demand to further soften and form the entire shock
mount 3 from the viewpoint of reducing the generation of vibration noise more effectively as
described above.
[0010]
That is, even if a thin and soft connection cord 8 is used, if the shock mount 3 side is too soft, if
stress is applied when wiring the connection cord 8, the shock mount 3 side is displaced as in the
conventional case. As a result, there still remains the problem that the microphone unit 2 can not
be elastically supported under the correct positional relationship.
[0011]
In view of the problems of the prior art, the present invention is directed to the shock mount side
that elastically supports the microphone unit even when stress is applied to the connection cord
when wiring the connection cord drawn from the microphone unit side to the device side. The
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purpose is to provide a microphone that is designed not to cause deformation.
[0012]
The present invention has been made to achieve the above object, and it comprises a microphone
unit, a shock mount which elastically supports the microphone unit to be freely attached to the
device side, and is pulled out from the microphone unit side. And the shock mount is connected
to a hollow support column of an appropriate length and a top of the hollow support column to
hold the microphone unit. A holding portion and a fixing portion continuously provided on the
proximal end side of the hollow support portion and attached to the device side, the connection
cord drawn out from the microphone unit side at an appropriate position of the hollow support
portion As well as providing an inlet for introducing the air into the inner space of the fixed The
most important feature that the content was.
[0013]
In this case, the shock mount is preferably integrally formed of an elastic material including a
rubber material.
In addition, it is desirable that the microphone unit can freely hold its attachment and
detachment with respect to the holding portion in a shock mount.
Furthermore, it is preferable that the introduction port be provided in a portion extending from
the holding portion side located on the back side of the microphone unit to the hollow support
portion side.
[0014]
According to the present invention, the connection cord drawn from the microphone unit side
can be introduced into the internal space through the introduction port formed on the shock
mount side and can be drawn out from the fixed portion side. In addition to reducing the
possibility of application of stress during wiring, it is possible to eliminate the application of a
force that displaces the shock mount even if the application of stress is performed.
[0015]
FIG. 1 is an explanatory view showing an example of the present invention, in which (a) shows a
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front view, (b) shows a right side view including a cross section of the main part, and (c) shows a
rear view.
[0016]
According to the figure, the microphone 11 comprises a microphone unit 12, a shock mount 22
resiliently supporting the microphone unit 12 and freely attached to a device (not shown), and
pulled out from the microphone unit 12 side. And at least a connection cord 32 wired to the
device side.
[0017]
Among them, the microphone unit 12 is formed of, for example, a minute condenser microphone
unit having a substantially cylindrical shape with an outer diameter of about 10 mm, and the
sound collecting unit side including the diaphragm is on the front surface 13 side and the rear
surface 14 side. Connection terminals etc. to which one end side of the connection cord 32 is
connected are respectively disposed in the.
[0018]
The shock mount 22 made of an elastic material containing a rubber material has a hollow
support 23 of a suitable length, a holding unit 25 for holding the microphone unit 12 on the top
side of the hollow support 23, and a hollow support And at least a fixing portion 26 connected to
the proximal end side of the base unit 23 and attached to the device side.
[0019]
In this case, the hollow support portion 23 is formed, for example, in a substantially hollow
cylindrical shape having a height of about 20 mm and an outer diameter of about 10 mm and
having an internal space 22 a along the length direction. .
[0020]
In addition, the hollow support portion 23 located on the back surface 14 side of the microphone
unit 12 is provided with the introduction port 24 communicated with the back surface opening
portion 25 b described later provided on the holding portion 25 side adjacent thereto. Thus, the
connection cord 32 drawn from the back surface 14 side of the microphone unit 12 can be
introduced into the internal space 22a.
[0021]
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Further, the holding portion 25 integrally formed on the top side of the hollow support portion
23 can hold or hold the microphone unit 12 with the front surface 13 side and the rear surface
14 side exposed. As described above, the front opening 25 a and the rear opening 25 b having an
inner diameter slightly smaller than the outer diameter of the microphone unit 12 are formed.
[0022]
In this case, since the holding portion 25 is formed with a certain degree of elasticity, the
microphone unit 12 can be detachably held via the front opening 25a or the rear opening 25b.
ing.
[0023]
Furthermore, the fixing portion 26 integrally formed on the proximal end side of the hollow
support portion 23 is formed by being provided with an appropriate attachment structure
determined in relation to the structure of the corresponding portion on the device side.
This will be described based on the illustrated example, and the fixing portion 26 is provided
with a groove portion 27 provided at a substantially middle position of a large diameter portion
having a base end opening portion 26a communicating with the internal space 22a of the hollow
support portion 23; The lower flange portion 28 and the upper flange portion 29 which are
divided into two through the groove portion 27 are formed.
[0024]
Next, the operation and effects of the present invention having the above configuration will be
described. The microphone unit 12 can be installed by being separated from an appropriate
device side, which is a mounting target member (not shown), via the shock mount 22. , Can be
arranged without degrading its acoustic performance.
[0025]
That is, the microphone unit 12 can freely hold its attachment / detachment via the front
opening 25a or the rear opening 25b of the holder 25 in the shock mount 22.
[0026]
In addition, the connection cord 32 drawn out from the back surface 14 side of the microphone
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unit 12 has the inlet 24 formed in a portion extending from the back surface opening 25 b of the
holding portion 25 in the shock mount 22 to the hollow support 23 side. As shown in FIG. 1 (b),
it can be introduced into the internal space 22a, and can be led out from the lower surface
opening 26a on the fixing portion 26 side.
[0027]
Therefore, since the connection cord 32 drawn from the back surface 14 side of the microphone
unit 12 can be wired to the device side by always passing through the inside of the shock mount
22, stress may be applied when wiring. It can be reduced.
In addition, even if stress is applied when wiring the connection cord 32, it is possible to
eliminate the application of a force that displaces the shock mount 22.
[0028]
Therefore, the shock mount 22 itself can be formed so as to be softer as a whole, and the
generation of vibration noise can be effectively reduced accordingly.
[0029]
In addition, the shock mount 22 is stable on the device side, for example, by arranging the lower
flange portion 28 and the upper flange portion 29 of the fixing portion 26 so as to sandwich the
mounting hole provided on the device side. Can be fixed.
[0030]
Therefore, the microphone 11 is fixed in position on the device side via the fixing portion 26 of
the shock mount 22 and is elastically supported on the shock mount 22 side without
deformation via the holding portion 25. As it can be installed under the positional relationship, it
is possible to always exhibit the designed performance.
[0031]
The above has described the present invention based on the illustrated examples, and the specific
configuration thereof is not limited to this.
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For example, the position, size, and the like of the inlet 24 formed on the shock mount 22 side
can be appropriately selected as desired.
Further, although it is desirable to form the shock mount 22 integrally, a part of the shock mount
22 may be separately formed and integrally formed by combining them.
Furthermore, the specific shape of the hollow support 23 in the shock mount 22 is not limited as
long as the internal space 22a can be secured.
Further, the holding unit 25 can be formed by providing a holding structure or a holding
structure to which the microphone unit 12 can not be attached or detached.
[0032]
BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows an example of
this invention, (a) of them shows a front view, (b) shows the right view including a principal part
cross section, (c) shows a rear view, respectively.
It is explanatory drawing which shows the prior art example of the comparatively small
microphone used for apparatus installation, (a) of them shows a front view, (b) shows a right side
view, (c) shows a rear view, respectively.
Explanation of sign
[0033]
DESCRIPTION OF SYMBOLS 11 microphone 12 microphone unit 13 front 14 back 22 shock
mount 22a internal space 23 hollow support 24 inlet 25 holding part 25a front opening 25b
back opening 26 fixed part 26a lower opening 27 groove 28 lower ridge 29 upper ridge Part 32
Connection cord
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