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JP2012175384

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DESCRIPTION JP2012175384
The present invention provides a technology such as a microphone that can reduce the cost. A
microphone 100 has a cylindrical microphone housing 10 which is long in one direction (Y-axis
direction), and a connector portion 20 housed inside the microphone housing 10 on the rear end
side of the microphone housing 10. And. The connector portion 20 has a pin plug 30 and a pin
plug holder 40 for holding the pin plug 30. The pin plug holder 40 is formed by curving a metal
plate 60 such as a steel plate or an aluminum plate into a cylindrical shape. As described above,
by forming the pin plug holder 40 by curving the metal plate 60 such as a steel plate, the pin
plug holder 40 can be formed at low cost, as compared with the conventional machined
workpiece and the like. [Selected figure] Figure 2
The manufacturing method of a microphone, a connector part, a pin plug holder, and a pin plug
holder.
[0001]
The present technology relates to technology such as a pin plug holder that holds a pin plug,
which is attached to a microphone.
[0002]
In recent years, microphones configured to be detachable from a microphone cable via a
connector are widely known.
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In such a microphone, in general, a male 3-pin type connector is attached to the microphone side,
and a female connector is attached to the microphone cable side. At present, XLR type
connectors are widely used as such connectors.
[0003]
The microphone described in Patent Document 1 below has a cylindrical microphone case 10, an
output connector 20 having three pins, and the output connector 20 fixed inside, the inside of
the rear end side of the microphone case And a cylindrical connector case 24 to be fixed.
[0004]
JP 2009-212765 A (paragraphs [0027] to [0031] FIG. 1)
[0005]
For example, a member for holding a connector such as the connector case disclosed in Patent
Document 1 is generally manufactured by a method such as sawing material machining or die
casting.
The member for holding the connector case is manufactured as such, and is therefore an
expensive part.
[0006]
In view of the above circumstances, an object of the present technology is to provide a
technology such as a microphone that can reduce the cost.
[0007]
A microphone according to an aspect of the present invention includes a microphone housing, a
pin plug, and a pin plug holder.
The microphone case is cylindrical.
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The pin plug has a base and a pin supported by the base. The pin plug holder houses and holds
the pin plug inside, is housed and held inside the microphone housing, and is formed by bending
a metal plate into a cylindrical shape.
[0008]
In this microphone, the pin plug holder can be formed by bending the metal plate to have a
cylindrical shape. This can reduce the cost of the microphone.
[0009]
In the above-mentioned microphone, the pin plug holder may have a projection which protrudes
outward from the outer peripheral surface of the pin plug holder and abuts on the inner
peripheral surface of the microphone housing.
[0010]
Even when the thickness of the metal plate does not match the difference between the outer
diameter of the pin plug and the inner diameter of the microphone case by providing such a
protrusion, the pin plug holder can be used as a microphone case via the protrusion. Can be
properly attached to the
[0011]
In the microphone, the metal plate may have a first edge and a second edge in a direction
orthogonal to a direction in which the metal plate is bent.
In this case, the pin plug holder is formed by opening a space between the first edge and the
second edge when the metal plate is bent into a cylindrical shape, and a plug socket is formed. It
may have a guide hole which guides the above-mentioned pin plug.
[0012]
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The pin plug may be provided with a guide guiding the plug socket so that the pin of the pin plug
is properly inserted into the socket of the plug socket.
In this form, when the metal plate is bent into a cylindrical shape, the guide hole may be formed
by opening a space between the first edge of the metal plate and the second edge. it can.
[0013]
A connector portion according to an aspect of the present invention includes a pin plug and a pin
plug holder. The pin plug has a base and a pin supported by the base. The pin plug holder houses
and holds the pin plug inside, is housed and held inside a tubular microphone housing, and is
formed by bending a metal plate into a tubular shape.
[0014]
A pin plug holder according to an aspect of the present invention includes a pin plug holder main
body. The pin plug holder main body houses and holds a pin plug having a base portion and a
pin supported by the base portion, is housed and held inside a tubular microphone housing, and
a metal plate is bent to be tubular It is formed by being made into a shape.
[0015]
The manufacturing method of the pin plug holder concerning one form of the present invention
includes preparing a metal plate. A pin plug having a base portion and a pin supported by the
base portion is housed and held inside, and a pin plug holder housed inside a tubular microphone
housing bends the metal plate to form a tubular shape It is formed.
[0016]
As described above, by forming the pin plug holder by bending the metal plate to have a
cylindrical shape, the cost can be reduced.
[0017]
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In the method of manufacturing the pin plug holder, a protrusion which protrudes from one
surface side of the metal plate may be formed on the metal plate.
[0018]
Even when the thickness of the metal plate does not match the difference between the outer
diameter of the pin plug and the inner diameter of the microphone case by providing such a
protrusion, the pin plug holder can be used as a microphone case via the protrusion. Can be
properly attached to the
[0019]
In the method of manufacturing the pin plug holder, the metal plate may have a first edge and a
second edge in a direction orthogonal to a direction in which the metal plate is bent.
In this case, in the step of bending the metal plate to form a pin plug holder, the space between
the first edge and the second edge when the metal plate is bent into a tubular shape. You may
open it.
[0020]
Thus, by opening the first edge of the metal plate and the second edge, a guide hole for guiding
the plug socket to the pin plug can be formed.
[0021]
As described above, according to the present technology, it is possible to provide a technology
such as a microphone that can reduce the cost.
[0022]
FIG. 1 is a perspective view showing a microphone according to an embodiment of the present
technology.
It is an enlarged view of the rear end side of a microphone, and is an exploded perspective view
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showing a connector part.
It is a side sectional view by the side of the back end part of a microphone.
It is the figure which looked at the microphone from the back end side.
It is a perspective view which shows the plug socket which can be attached or detached with
respect to a pin plug (connector part). It is a schematic diagram for demonstrating the
manufacturing method of a pin plug holder.
[0023]
Hereinafter, embodiments according to the present technology will be described with reference
to the drawings.
[0024]
[Overall Configuration of Microphone 100 and Configuration of Each Part] FIG. 1 is a perspective
view showing a microphone 100 according to an embodiment of the present technology.
As shown in FIG. 1, the microphone 100 is housed inside the microphone housing 10 at the
cylindrical microphone housing 10 which is long in one direction (Y-axis direction) and the rear
end side of the microphone housing 10. And a connector portion 20.
[0025]
The microphone housing 10 has two sound collection openings 11 on the side surface on the
front end side. In FIG. 1, one of the two sound collecting openings 11 is shown.
[0026]
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FIG. 2 is an enlarged view of the rear end side of the microphone 100, and is an exploded
perspective view showing the connector portion 20. As shown in FIG. FIG. 3 is a side sectional
view of the rear end side of the microphone 100. FIG. 4 is a view of the microphone 100 as
viewed from the rear end side. In FIG. 3, the microphone housing 10 and the pin plug holder 40
are displayed as a cross section, and the other parts are not displayed as a cross section.
[0027]
As shown in these figures, the connector portion 20 has a pin plug 30 and a pin plug holder 40
for holding the pin plug 30. In this embodiment, an XLR type output connector is taken as an
example of the pin plug 30. In the following description, the front side of the connector portion
20 is referred to as the front side, and the opposite side is referred to as the rear side. The front
side of the connector unit 20 corresponds to the rear side of the microphone 100, and the rear
side of the connector unit 20 corresponds to the front side of the microphone 100.
[0028]
The pin plug 30 has a base 31 and three pins 32 supported by the base 31. The base 31 has a
cylindrical shape, and is formed of insulating synthetic resin or the like. A guide boss 33
protruding outward from the side circumferential surface is provided on the side circumferential
surface of the base 31 along the Y-axis direction (axial direction of the cylinder). Further, a screw
hole 34 is formed in the upper part of the side peripheral surface of the base 31 toward the
center of the base 31. When the pin plug 30 is attached to the pin plug holder 40, the guide
bosses 33 provided on the base 31 are guided to the guide holes 42 provided in the pin plug
holder 40.
[0029]
Lead wires 35 are provided on the rear end sides of the three pins 32, respectively. The lead
wires 35 are soldered to the wiring substrate 50 disposed inside the microphone housing 10 by
solder 36 or the like, whereby the pins 32 are electrically connected to the wiring substrate 50.
Although illustration is omitted, various electronic components necessary for the microphone
100 are mounted on the wiring substrate 50.
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[0030]
The pin plug holder 40 has a cylindrical shape, accommodates and holds the pin plug 30 therein,
and is accommodated and held inside the rear end portion of the microphone housing 10.
[0031]
The pin plug holder 40 is formed by curving a metal plate 60 (see FIG. 6) such as a steel plate or
an aluminum plate into a cylindrical shape.
As described above, by forming the pin plug holder 40 by curving the metal plate 60 such as a
steel plate, the pin plug holder 40 can be formed at low cost, as compared with the conventional
machined workpiece and the like. Thereby, the cost of the pin plug holder 40 and the
microphone 100 can be reduced. In addition, the detail about the manufacturing method of the
pin plug holder 40 is mentioned later.
[0032]
The pin plug holder 40 has an extension 46 that extends rearward on the lower side of the pin
plug holder 40. The extension portion 46 is screwed with a screw 72 or the like to a metallic
support member 51 that supports the wiring substrate 50 from the lower side. The metallic
support member 51 is at the same potential as the wiring substrate 50, and accordingly, the pin
plug holder 40 is at the same potential as the substrate potential.
[0033]
A guide hole 42 is formed in the pin plug holder 40 at the upper right position when the pin plug
holder 40 is viewed from the front side (when the microphone 100 is viewed from the rear side).
The guide hole is formed along the Y-axis direction (axial direction of the cylinder) with respect
to the pin plug holder 40. The guide holes 42 are open on the front side of the pin plug holder
40 and closed on the rear side of the pin plug holder 40. A portion where the guide hole 42 is
closed on the rear side of the pin plug holder 40 is referred to as a locking portion 43.
[0034]
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The guide holes 42 guide the guide bosses 33 provided on the base 31 of the pin plug 30 when
the pin plug 30 is inserted from the front side of the pin plug holder 40. The locking portion 43
locks the guide boss 33 provided on the base 31 of the pin plug 30 when the pin plug 30 is
inserted to the back of the pin plug holder 40. Thereby, the pin plug 30 is accurately positioned
with respect to the pin plug holder 40. The guide holes 42 guide the plug socket 80 to the pin
plug 30 when the plug socket 80 (see FIG. 5) is attached to and detached from the pin plug 30.
[0035]
A screw hole 44 is formed on the rear side of the upper portion of the pin plug holder 40. The
microphone housing 10 also has screw holes 12 corresponding to the screw holes 44 of the pin
plug holder 40 and the screw holes 34 of the pin plug 30. The screw 71 is screwed from the
outside of the microphone housing 10 into the screw hole 12 provided in the microphone
housing 10, the screw hole 44 provided in the pin plug holder 40, and the screw hole 34
provided in the base 31 of the pin plug 30. The microphone housing 10, the pin plug holder 40
and the pin plug 30 are screwed on.
[0036]
On the front side of the upper portion of the pin plug holder 40, a latch hole 45 which engages
with a latch 84 provided on the plug socket 80 (see FIG. 5) is formed.
[0037]
Further, the pin plug holder 40 is provided with a protrusion 41 that protrudes outward from the
outer peripheral surface of the pin plug holder 40 and that abuts on the inner peripheral surface
of the microphone housing 10.
In the present embodiment, two protrusions 41 are formed at intervals of 120 degrees along the
circumferential direction of the pin plug holder 40 (see FIGS. 2 and 4). In the present
embodiment, the shape of the protrusion 41 is cylindrical.
[0038]
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Here, the reason why the protrusion 41 is formed in the pin plug holder 40 will be described.
[0039]
Since the pin plug holder 40 is a member interposed between the pin plug 30 and the
microphone housing 10, the thickness of the pin plug holder 40 is typically between the outer
diameter of the pin plug 30 and the inner diameter of the microphone housing 10. You need to
match the difference.
On the other hand, in the present technology, for the purpose of cost reduction and the like, the
pin plug holder 40 is formed by bending the metal plate 60 such as a steel plate. Since the
thickness of the metal plate 60 is determined by a public standard such as JIS (Japanese
Industrial Standards), the thickness of the metal plate 60 may be any of the thicknesses defined
by the public standard. Need to choose.
[0040]
Then, it is assumed that the thickness of the metal plate 60 does not match the difference
between the outer diameter of the pin plug 30 and the inner diameter of the microphone housing
10.
[0041]
Therefore, in the present embodiment, a protrusion 41 that protrudes from the outer peripheral
surface of the pin plug holder 40 and is in contact with the inner peripheral surface of the
microphone housing 10 is provided.
Thus, even when the thickness of the metal plate 60 does not match the difference between the
outer diameter of the pin plug 30 and the inner diameter of the microphone housing 10, the pin
plug holder 40 is in close contact with the microphone housing 10 via the protrusion 41. It can
be done.
[0042]
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10
In the present embodiment, the outer diameter of the pin plug 30 is 16 mm, and the inner
diameter of the microphone housing 10 is 18 mm. Further, as the metal plate 60 forming the pin
plug holder 40, a metal plate 60 having a thickness of 0.8 mm was used. The protrusions 41 had
a height of 0.2 mm and a diameter of 1 mm.
[0043]
In this case, the inner diameter of the pin plug holder 40 is 16 mm in accordance with the outer
diameter of the pin plug holder 40. In this case, the outer diameter of the pin plug holder 40 is
17.6 mm (2 × 0.8 mm + 16 mm = 17.6 mm). When the pin plug holder 40 is mounted in the
microphone housing 10, 0.2 mm ((18 mm-17.6 mm) / 2 = between the outer peripheral surface
of the pin plug holder 40 and the inner peripheral surface of the microphone housing 10 There
is a gap of 0.2 mm). However, since the protrusion 41 of 0.2 mm is provided on the outer
peripheral surface of the pin plug holder 40, the pin plug holder 40 can be brought into close
contact with the microphone housing 10 via the protrusion 41.
[0044]
When the pin plug holder 40 is manufactured, the metal plate 60 having a thickness smaller than
the difference between the outer diameter of the pin plug 30 and the inner diameter of the
microphone housing 10 and closest to the difference is selected. Then, the height of the
protrusion 41 is adjusted in consideration of the difference between the outer diameter of the pin
plug holder 40 and the inner diameter of the microphone housing 10 when the pin plug holder
40 is formed of the metal plate 60 of that thickness. . In this manner, by adjusting the thickness
of the metal plate 60 and the height of the projection 41, the pin plug holder 40 can be inserted
into the microphone housing via the projection 41 regardless of the inner diameter of the
microphone housing 10. It can be made to adhere to ten.
[0045]
Here, the plug socket 80 which is attachable to and detachable from the pin plug 30 and
provided on one end side of the microphone cable will be described.
[0046]
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FIG. 5 is a perspective view showing the plug socket 80 which can be attached to and detached
from the pin plug 30 (connector portion 20).
In FIG. 5, as an example of the plug socket 80, an XLR type input connector is shown.
[0047]
As shown in FIG. 5, the plug socket 80 has a cylindrical insertion portion 81 to be inserted into
the pin plug holder 40, and the insertion portion 81 corresponds to the three pins 32 of the pin
plug 30. Three sockets 82 are formed. A guide boss 83 protruding outward from the outer
peripheral surface is provided on the outer peripheral surface of the insertion portion 81 along
the Y-axis direction (axial direction of the cylinder). Further, a latch mechanism 86 having a latch
84 and a pressing portion 85 capable of pressing the latch 84 is provided at the top of the plug
socket 80.
[0048]
When the plug socket 80 is inserted into the pin plug 30 (connector portion 20), the guide boss
83 provided on the outer peripheral surface of the insertion portion 81 is guided to the guide
hole 42 provided in the pin plug holder 40. Three pins 32 are correctly inserted into the three
sockets 82. When the plug socket 80 is inserted to the back of the connector portion 20, the
latch 84 of the plug socket 80 engages with the latch hole 45, and the plug socket 80 is
prevented from being detached from the pin plug 30 (connector portion 20). .
[0049]
[Method of Manufacturing Pin Plug Holder 40] Next, a method of manufacturing the pin plug
holder 40 will be described.
[0050]
FIG. 6 is a schematic view for explaining the method of manufacturing the pin plug holder 40. As
shown in FIG.
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In FIG. 6, the extension 46 of the pin plug holder 40 is omitted.
[0051]
First, as shown in FIG. 6A, a metal plate 60 having a predetermined shape is cut out from a metal
plate such as a steel plate by punching or the like. In this case, as described above, the metal
plate 60 having a thickness smaller than the difference between the outer diameter of the pin
plug 30 and the inner diameter of the microphone housing 10 and closest to the difference is
selected as the metal plate 60.
[0052]
The metal plate 60 cut into a predetermined shape has a substantially rectangular shape, and has
a first edge 61 and a second edge 62 in a direction orthogonal to the direction in which the metal
plate 60 is bent. ing. The first edge 61 and the second edge 62 are provided with projecting
portions 63 and 64 that constitute a part of the locking portion 43, respectively.
[0053]
Next, as shown in FIG. 6B, the screw holes 44 and the latch holes 45 are formed in the metal
plate 60. The latch hole 45 is formed by, for example, pressing. Further, as shown in FIG. 6B, the
lower surface side of the metal plate 60 (pin plug holder 40) is formed by performing press
processing or the like on six places from the upper surface side (inner peripheral surface side of
the pin plug holder 40) of the metal plate 60. The projection 41 is formed on the outer
peripheral surface side of A groove 47 is formed on the upper surface side (inner peripheral
surface side of the pin plug 30) of the metal plate 60 at a position corresponding to the
protrusion 41 by pressing when the protrusion 41 is formed. By adjusting the pressure of the
press process at this time, the height of the protrusion 41 is adjusted. As described above, the
height of the projection 41 is set in consideration of the difference between the outer diameter of
the pin plug holder 40 and the inner diameter of the microphone housing 10.
[0054]
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Next, as shown in FIG. 6C, the metal plate 60 is bent into a cylindrical shape by bending, whereby
the pin plug holder 40 is formed. When the metal plate 60 is curved into a cylindrical shape, a
space is provided between the first edge 61 and the second edge 62, whereby the guide hole 42
is formed in the pin plug holder 40. It is formed. That is, in the present embodiment, since a gap
is formed between the first edge 61 and the second edge 62 and used as the guide hole 42, the
metal plate 60 is curved to have a cylindrical shape. When this is done, processing such as
welding the first edge 61 and the second edge 62 becomes unnecessary. This can further reduce
the cost.
[0055]
[Operation, etc.] As described above, in the present embodiment, since the pin plug holder 40 is
formed by curving the metal plate 60 such as a steel plate or an aluminum plate, the cost is low
compared to the conventional sawing machine and the like. The pin plug holder 40 can be
formed on the Thereby, the cost of the pin plug holder 40 and the microphone 100 can be
reduced. Further, by forming the pin plug holder 40 with the metal plate 60, the latch hole 45
and the like can be easily formed by press processing or the like, and the cost can be further
reduced. Further, forming the pin plug holder 40 with the metal plate 60 is also effective in EMC
(Electro-Magnetic Compatibility). As the metal plate 60, a stainless steel plate which does not
require surface treatment may be used. This eliminates the need for secondary processing.
[0056]
Further, in the present embodiment, a protrusion 41 that protrudes outward from the outer
peripheral surface of the pin plug holder 40 is provided. Thus, even when the thickness of the
metal plate 60 does not match the difference between the outer diameter of the pin plug 30 and
the inner diameter of the microphone housing 10, the pin plug holder 40 is in close contact with
the microphone housing 10 via the protrusion 41. It can be done. That is, by adjusting the
thickness of the metal plate 60 and the height of the projection 41, the pin plug holder 40 is in
close contact with the microphone housing 10 via the projection 41 regardless of the size of the
inner diameter of the microphone housing 10. It can be done.
[0057]
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Further, although the pin plug holder 40 is in contact with the inner peripheral surface of the
microphone housing 10 via the projection 41, the other parts are not in contact with the
microphone housing 10. Thereby, the unnecessary vibration from the plug socket 80 when the
plug socket 80 is inserted into the pin plug 30 (connector portion 20) and the microphone 100 is
used is absorbed by the elasticity of the pin plug holder 40 formed of the metal plate 60. It can
be done. Thereby, the sound quality of the microphone 100 can be improved.
[0058]
Further, in the present embodiment, when the metal plate 60 is curved into a cylindrical shape, a
gap is formed between the first edge 61 and the second edge 62 and used as the guide hole 42.
Accordingly, the process of welding the first edge 61 and the second edge 62 is not necessary.
This can further reduce the cost.
[0059]
[Various Modifications] Although the case where the number of pins 32 of the pin plug 30 is
three has been described above, the number of pins 32 may be one, two, or four or more, The
number of pins 32 is not particularly limited.
[0060]
In the above description, the expression tubular shape is used for the pin plug holder 40, but
the pin plug holder 40 may have a generally cylindrical shape.
That is, the pin plug holder 40 does not have to be completely connected in the circumferential
direction. In the above description, although the case where the pin plug holder 40 has a
cylindrical shape has been described, the pin plug holder may have a rectangular cylindrical
shape. For example, when the base 31 of the pin plug 30 has a square pole shape as a connector
standard, the pin plug holder 40 may be formed into a rectangular tube shape in accordance with
this. In this case, typically, the microphone housing 10 also has a rectangular tube shape.
[0061]
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Although the case where the number of the protrusions 41 is six has been described above, the
number of the protrusions 41 is not particularly limited. In the above description, the case where
the shape of the protrusion 41 is a cylindrical shape has been described. However, the shape of
the protrusion 41 may be a triangular prism shape, a quadrangular prism shape, or a polygonal
prism shape more than that, and the shape of the protrusion 41 is not particularly limited.
Alternatively, on the outer peripheral surface of the pin plug holder 40, the protrusion 41 may be
formed in a shape that is long in the Y-axis direction along the Y-axis direction (axial direction of
the cylinder). It may be formed in a shape elongated in the direction.
[0062]
The present technology can also have the following configurations. (1) A pin plug having a
cylindrical microphone housing, a base, and a pin supported by the base, and the pin plug housed
and held inside, housed and held inside the microphone housing, And a pin plug holder formed
by bending a metal plate into a cylindrical shape. (2) The microphone according to (1), wherein
the pin plug holder has a protrusion that protrudes outward from an outer peripheral surface of
the pin plug holder and that abuts on an inner peripheral surface of the microphone housing. (3)
The microphone according to (1) or (2), wherein the metal plate has a first edge and a second
edge in a direction orthogonal to the direction in which the metal plate is bent. The pin plug
holder is formed by opening a space between the first edge and the second edge when the metal
plate is bent into a cylindrical shape, and the plug socket is formed as the plug socket.
Microphone having a guide hole for guiding to a pin plug. (4) A pin plug having a base portion
and a pin supported by the base portion, and the pin plug is housed and held inside, is housed
and held inside a tubular microphone housing, and a metal plate is bent A connector portion
comprising: a pin plug holder formed by being cylindrically shaped. (5) A pin plug having a base
portion and a pin supported by the base portion is housed and held inside, and is housed and
held inside a tubular microphone housing, and a metal plate is bent into a tubular shape A pin
plug holder body having a pin plug holder body formed by (6) Prepare a metal plate, insert and
hold a pin plug having a base portion and a pin supported on the base portion inside, and hold
the pin plug holder housed in a tubular microphone housing, the metal plate A method of
manufacturing a pin plug holder formed by bending a tube into a cylindrical shape. (7) The
method of manufacturing a pin plug holder according to (6), further including: forming a
protrusion protruding from one surface side of the metal plate on the metal plate. (8) In the
method of manufacturing a pin plug holder according to (6) or (7), the metal plate has a first
edge and a second edge in a direction orthogonal to a direction in which the metal plate is bent.
And bending the metal plate to form a pin plug holder, wherein the step of forming the pin plug
holder comprises: between the first edge and the second edge when the metal plate is bent into a
cylindrical shape. How to make pin plug holders spaced apart.
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[0063]
DESCRIPTION OF SYMBOLS 10 ... Microphone housing 20 ... Connector part 30 ... Pin plug 31 ...
Base 32 ... Pin 40 ... Pin plug holder 41 ... Protrusion 42 ... Guide hole 60 ... Metal plate 61 ... 1st
edge 62 ... 2nd edge 80 ... Plug socket 100 ... microphone
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