close

Вход

Забыли?

вход по аккаунту

JP2002042603

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2002042603
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
push button device of a speaker microphone in which a speaker and a microphone are
accommodated in a microphone body.
[0002]
2. Description of the Related Art A microphone body a of a speaker microphone used in a
conventional portable wireless device or the like comprises a front case b and a rear case (not
shown) as shown in FIG. A speaker and a microphone (both not shown) are accommodated.
[0003]
A push button d for operating a tact switch c provided in the front case b is provided on the
upper portion or the side portion of the front case b.
[0004]
FIG. 2 shows a conventional push button device for a speaker microphone. A push button
attachment hole g is formed on the upper surface and the side surface of the outer peripheral
wall f formed so as to surround the push button attachment portion e of the front case b. A notch
is formed, and a push button d is fitted into the push button attachment holes g from the inside.
[0005]
01-05-2019
1
On the inner surface of the push button d, a spring receiving projection i fitted with one end of a
compression spring h consisting of a coil spring at a position closer to the right than the center,
for example, The portion j is provided so that the push button d is urged upward by the
compression spring h and is slidably supported on the peripheral wall k of the front case b on the
center line of the actuating projection j. The operating arm m and the operating portion n of the
tact switch c provided in the front case b are disposed at an appropriate interval.
[0006]
The actuating rod m is integrally formed with the waterproof cap o by an elastic body such as
rubber, and the opening of the waterproof cap o is fitted in a guide cylinder p which protrudes
from the peripheral wall k toward the push button attaching part e. By wearing it, rainwater and
the like are prevented from entering the inside of the microphone main body a from the
mounting hole g of the operating rod m.
[0007]
However, in the above-mentioned conventional push button device for a speaker microphone, the
actuating projection j for operating the tact switch c is provided so as to protrude at a position
eccentric to the center of the push button d. As a result, when the push button d is pressed, the
push button d is inclined and the push button d may not slide smoothly, which causes problems
such as unstable operation of the push button d.
[0008]
Further, when the push button d is inclined, the pressing force acts on the actuating rod m in an
oblique direction, so that the actuating portion n of the tact switch c can not be operated reliably
and the gap between the waterproof cap o and the guide cylinder p As a result, as shown by the
arrow in FIG.
[0009]
The present invention has been made to solve the above-mentioned conventional problems, and
is a push button for a speaker microphone which can prevent the intrusion of rain water and the
like without the push button being inclined when the push button is pressed. It is an object to
provide an apparatus.
[0010]
SUMMARY OF THE INVENTION In order to achieve the above object, a push button device for a
speaker microphone of the present invention is provided with a tact switch in a microphone main
01-05-2019
2
body, and a push button for operating the tact switch is used as the microphone A push button
device of a speaker microphone provided on an outer peripheral surface of the main body, the
push button on the main body of the microphone so that the center of the actuating projection
projecting from the push button substantially matches the center of the actuating portion of the
tact switch It is attached.
[0011]
According to the above configuration, when the push button is pressed, the push button is not
inclined, so the push operation of the push button can be smoothly performed, whereby the tact
switch can be operated reliably. Operability also improves.
[0012]
In order to achieve the above object, the push button device of the speaker microphone of the
present invention is provided with an operating lever for operating the tact switch, and a
waterproof cap is provided on the operating lever and a compression spring for biasing the push
button. The lower end of the waterproof cap is crimped to the case at the lower end.
[0013]
With the above construction, the lower part of the waterproof cap is strongly crimped to the
peripheral wall of the case by the compression reaction force of the compression spring which
urges the push button. be able to.
[0014]
In order to achieve the above object, the push button device of the speaker microphone of the
present invention has guide pins protruding at both ends of the push button, and these guide
pins are vertically movably fitted in guide grooves formed in the case. It is inserted.
[0015]
According to the above configuration, the guide pin protruding from the push button is guided by
the guide groove and the push button slides, so that the operation of the push button becomes
more stable.
[0016]
DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be
described in detail with reference to the drawings shown in FIG. 1 to FIG.
01-05-2019
3
[0017]
FIG. 1 is a front view of the speaker microphone, FIG. 2 is an exploded perspective view of a front
case and a push button constituting the microphone main body, and FIG. 3 is a sectional view of
the push button device incorporated in the front case.
[0018]
The microphone body 1 comprises a front case 2 and a rear case not shown, and a speaker and a
microphone (both not shown) are accommodated in the front case 2.
[0019]
At the front of the front case 2, there are a sound emission hole 2a for emitting the sound output
from the speaker to the outside and a sound collection hole 2b for collecting the external sound
to the microphone, and the front case The control lever 3 of a press talk switch (not shown) and
the push button 4a of the push button switch 4 are attached to the upper part and the side part
of 2.
[0020]
An outer peripheral wall 2e is formed on the outer periphery of the push button mounting
portion 2c of the front case 2 with respect to the peripheral wall 2d of the front case 2 so as to
surround the push button mounting portion 2c. The push button mounting holes 2f are cut out
at, for example, two places on the side surface.
[0021]
A push button 4a is fitted to the push button mounting hole 2f from the inside of the outer
peripheral wall 2e.
[0022]
As shown in FIGS. 2 and 3, the push button 4a is formed of a substantially square flat plate, and
the leg portions 4b are provided at both ends, and the tips of the leg portions 4b are pushed.
Locking projections 4c that are locked from the inside are protruded from the opening edge of
the button mounting hole 2f.
[0023]
01-05-2019
4
An actuating projection 4d is provided at the center of the inner surface of the push button 4a,
and the end of the actuating projection 4d is at one end of the actuating rod 5 installed on the
center line of the actuating projection 4d. , As shown in FIG.
[0024]
The actuating rod 5 is integrally formed with the waterproof cap 5a by an elastic body such as
rubber, and can slide in a guide cylinder 2g provided on the side of the push button attaching
portion 2c from the peripheral wall 2d of the front case 2 The other end of the actuating rod 5 is
supported by the actuating portion 6a of the tact switch 6 provided in the front case 2 so that the
actuating portion 6a is positioned on the center line of the actuating projection 4d. It is opposed
with a gap.
[0025]
The waterproof cap 5a integrally formed with the actuating rod 5 has an upper portion
connected to the upper portion of the actuating rod 5 and a lower opening portion watertightly
fitted to the outer peripheral surface of the guide cylinder 2g. A flange 5c is integrally formed at
the opening, and the flange 5c is crimped to the outer surface of the peripheral wall 2c by one
end of a compression spring 7 formed of a coil spring.
[0026]
The compression spring 7 is interposed between the push button 4a and the peripheral wall 2c
so that the center thereof substantially coincides with the center of the actuating projection 4d,
and the other end of the compression spring 7 projects from the inner surface of the push button
4a. The push button 4a is urged upward or sideward by the compression spring 7 by being fitted
into the spring receiving cylinder 4e.
[0027]
Next, to describe the operation of the push button device configured as described above, when
incorporating the push button 4a into the front case 2, first, the operating rod 5 is inserted from
the outside into the guide cylinder 2g of the front case 2 The opening of the waterproof cap 5a
formed integrally with the actuating rod 5 is fitted to the outer peripheral surface of the guide
cylinder 2g.
[0028]
Next, as shown in FIG. 2, a push button 4a having the other end of the compression spring 7
fitted to a spring receiving cylinder 4e projecting from the inner surface is formed on the outer
01-05-2019
5
peripheral wall 2e of the push button mounting portion 2c. The button mounting hole 2f is fitted
from the inside, and one end of the compression spring 7 is brought into contact with the upper
surface of the flange portion 5b of the waterproof cap 5a as shown in FIG.
[0029]
Thus, the actuating projection 4d of the push button 4a, the actuating rod 5 and the actuating
portion 6a of the tact switch 6 are disposed in line as shown in FIG. 3, and the flange 5b of the
waterproof cap 5a is a compression spring The outer peripheral surface of the peripheral wall 2
c of the front case 2 is crimped by the biasing reaction force of 7.
[0030]
When the push button 4a is assembled as described above, the opening of the front case 2 is
covered with the rear case, and the fluorocarbon, the case 2 and the rear case are fixedly
integrated by fasteners (not shown) such as screws. The front case 2 and the rear case are sealed
by a waterproof packing (not shown).
[0031]
When the push button 4a is pressed to make a call using the assembled microphone body 1, the
actuating projection 4d projecting from the approximate center of the push button 4a is on the
center line of the actuating projection 4d. The actuating portion 6a of the tact switch 6 in the
front case 2 is pressed via the actuating rod 5 arranged, and the tact switch 6 is operated without
tilting the push button 4a, whereby the operation of the push button 4a is smooth And the tact
switch 6 can be operated reliably.
[0032]
Further, since the compression spring 7 for urging the push button 4a is compressed and the
flange portion 5b of the waterproof cap 5a is further strongly crimped to the peripheral wall 2c,
rainwater etc. enters the microphone body 1 from the guide cylinder 2g. Can be reliably
prevented.
[0033]
On the other hand, FIGS. 4 to 6 show a modification in which a guide pin is provided so as to
project from the leg 4b of the push button 4a so that the push button 4a can be operated more
smoothly. This modification will be described below. .
01-05-2019
6
[0034]
The same parts as those of the above-described embodiment are denoted by the same reference
numerals, and the description thereof will be omitted.
[0035]
In this modification, guide pins 4f are horizontally protruded on the side surfaces of the locking
projections 4c protruding from the leg 4b of the push button 4a, and these guide pins 4f are
formed on the push button attaching portion 2c. The guide groove 2 h thus formed is fitted into
the push button attaching portion (not shown) of the rear case.
[0036]
As a result, when the push button 4a is pressed, the guide pin 4f is guided by the guide groove
2h and the push button 4a slides, so that the operation of the push button 4a can be performed
smoothly and by the position where the push button 4a is pressed. The following operation is
also possible.
[0037]
That is, when the position A of the push button 4a shown in FIG. 6 is pressed, the left guide pin
4f slides in the guide groove 2h with the right guide pin 4f as a fulcrum, and the B position of the
push button 4a When pressed, the right guide pin 4 f slides in the guide groove 2 h with the left
guide pin 4 f as a fulcrum.
[0038]
When the C position of the push button 4a is pressed, the left and right guide pins 4f
simultaneously slide in the guide groove 2h, so that various kinds of operations can be obtained
by changing the pressing position of the push button 4a. This makes it possible to operate a
plurality of tact switches 6 with one push button 4a.
[0039]
As described above in detail, according to the present invention, the push button is provided on
the microphone main body so that the center of the actuating projection projecting from the
push button substantially coincides with the center of the actuating portion of the tact switch.
Since it is attached, when the push button is pushed, the push button does not tilt, so the push
operation of the push button can be smoothly performed, whereby the tact switch can be
operated reliably and operability Also improve.
01-05-2019
7
[0040]
In addition to providing an operating lever for operating the tact switch and providing a
waterproof cap on the operating lever, the lower end of the waterproof cap is crimped to the case
by the lower end of the compression spring for biasing the push button. Since the lower part of
the waterproof cap is strongly crimped to the peripheral wall of the case by the compression
reaction force of the compression spring that urges, it is possible to reliably prevent rainwater
and the like from entering the inside of the microphone body.
[0041]
Brief description of the drawings
[0042]
1 is a front view of a speaker microphone adopting a push button device according to an
embodiment of the present invention
[0043]
2 is an exploded perspective view showing the push button device of the speaker microphone
according to the embodiment of the present invention
[0044]
3 is an enlarged sectional view showing the push button device of the speaker microphone
according to the embodiment of the present invention
[0045]
4 is an exploded perspective view showing a modification of the push button device of the
speaker microphone according to the embodiment of the present invention
[0046]
5 is an enlarged sectional view showing a modification of the push button device of the speaker
microphone according to the embodiment of the present invention.
[0047]
6 is an operation explanatory view showing a modification of the push button device of the
01-05-2019
8
speaker microphone according to the embodiment of the present invention.
[0048]
7 is an exploded perspective view showing the conventional push button device of the speaker
microphone
[0049]
Fig. 8 An enlarged sectional view showing a conventional push button device for a speaker
microphone
[0050]
Explanation of sign
[0051]
DESCRIPTION OF SYMBOLS 1 microphone body 2 front case 2 h guide groove 4 a push button 4
d actuating projection 4 f guide pin 5 actuating rod 5 a waterproof cap 6 tact switch 6 a
actuating portion
01-05-2019
9
1/--страниц
Пожаловаться на содержимое документа