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JP2002199072

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DESCRIPTION JP2002199072
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
wrist-worn communication device having a cushion.
[0002]
2. Description of the Related Art In a conventional communication device, electronic components
such as a microphone and a speaker are provided in a housing thereof. A microphone or a
speaker is provided with an air chamber space between the microphone and the housing or the
speaker and the housing in order to expand the sound. A hole as a sound collection port or a
sound emission port is opened in a part of the housing to secure a sound transmission path to
the outside of the housing. In addition, most conventional communication devices that are not
worn on the arm have no waterproof function except when used for special applications.
[0003]
In recent years, the miniaturization of communication devices has progressed remarkably, and
communication devices worn on arms have also come into practical use. In the communication
device worn on the arm, unlike the communication device not worn, it is necessary to have a
waterproof structure to prevent the infiltration of moisture such as sweat. Therefore, in general,
waterproof sheets have been used from the viewpoint of waterproofness and air permeability.
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Structurally, a waterproof sheet was attached to the inside of the sound release opening and the
sound collection opening to prevent water from entering. Also, in the case of an arm-type
communication device, it has been devised to place each in two band portions attached to the
body in order to place the speaker in the ear and the microphone in the vicinity of the mouth.
[0004]
SUMMARY OF THE INVENTION However, in the case of arm-worn communication devices, it is
easy for hand marks and dust to adhere around the sound outlet other than sweat, and when it is
attempted to remove this, the waterproof sheet is damaged. There was a problem that it was easy
to kill. If the tarpaulin is damaged, the waterproofness is naturally lost. Further, in the case of a
curved band with a small radius of curvature, even if the speaker unit was to be put on the ear
when making a call, the sound was not audible because the sound release port portion was not in
close contact with the ear.
[0005]
Then, this invention is made in view of the above, Comprising: It aims at providing the arm-worn
type communication apparatus which maintain and improve the waterproofness of a speaker,
and a user's audibility.
[0006]
SUMMARY OF THE INVENTION In order to achieve the above object, the present invention
relates to a band portion of a wrist-worn type communication device, wherein a sound port
connecting the inside and the outside of a case is an acoustic device. An arm having a housing
cover bored in a portion facing the housing, and a cushion attached to the housing cover for
arranging the outer shape of the sound conduction port at a position planarly outside the outer
shape of the sound port It is a wearable communication device.
[0007]
An acoustic device such as a microphone or a speaker is provided inside the case in the band
portion of the wrist-worn communication device.
These acoustic devices are embedded by the housing cover after being fitted in the recess of the
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housing.
In the housing cover, a sound port for connecting the inside and the outside of the housing after
mounting is formed as a sound emission port or a sound collection port. As a result, an air
passage passing through the acoustic device and the outside of the housing is secured, and
efficient sound transmission is possible. As a part where the above-mentioned sound port is
pierced, the part which faces audio equipment is suitable.
[0008]
When the arm-worn communication device is used by removing it from the arm, a cushion is
provided on the band portion facing the user's face. The cushion has a sound conducting port at
a position different from a position where the sound port is extended substantially
perpendicularly outward with respect to the housing. By this, it becomes possible to conduct the
sound, and even if it is pierced with a thin rod material from the cushion outer surface in an
attempt to take dust etc. of the sound conductive port, the rod material can touch the sound port
of the housing cover. It disappears. The cushion maintains the above-mentioned positional
relationship by engaging with the housing cover. The cushion also helps to conform to the shape
of the ear against which it is applied and to prevent the sound from scattering.
[0009]
According to the present invention, the housing cover forms an air chamber so as to face the
sound output portion of the speaker embedded in the housing, and a waterproof sheet is
attached to the back surface. It is a device.
[0010]
In the arm-worn communication device, a speaker for the user to listen to sound is embedded in
the housing.
An air chamber formed by the housing cover is provided immediately before the sound emitting
portion of the speaker. The air chamber is air-tight, and the oscillation of air necessary for sound
transmission is secured. In addition, a waterproof sheet is attached to the back of the housing
cover in order to prevent rain, sweat, and the like from entering the speaker. The site to be
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attached may be only the connection portion between the air chamber and the sound opening, or
may be the inner wall of the air chamber including the connection portion.
[0011]
This invention is an arm-worn communication device in which the acoustic device is a
microphone, and a waterproof sheet is attached to a portion of the case cover on the rear side of
the opening of the case cover that faces the microphone.
[0012]
The arm attachment according to claim 1 or 3, wherein the cushion attached to the housing
cover protrudes outside the string connecting the hinge of the curved band portion and the
speaker tip, and has a sound conducting port at the protruding position. Communication
equipment.
[0013]
A microphone is also embedded in the band portion of the wrist-worn communication device.
A waterproof sheet is attached to the rear side of the cover of the case cover at a portion facing
the microphone.
As a result, sweat and water do not enter the microphone embedded in the housing. In the
cushion engaged with the housing cover, a sound transmission port is formed at a position
different from the position in which the sound port is extended substantially perpendicularly
outward with respect to the housing. As a result, it becomes possible to conduct sound and
temporarily prevent damage to the moisture permeable / waterproof sheet and the microphone
even if they are pierced with a thin rod material from the cushion outer surface in order to take
dust etc. of the sound conduction port. Also, even if it is a curved band fitted to the arm, the
sound of the speaker can be received without leaking to the outside
[0014]
DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail
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with reference to the drawings. The present invention is not limited by the embodiment.
[0015]
FIG. 1 is a side sectional view showing a cushion structure of a wrist-worn communication device
according to an embodiment of the present invention. The wrist-worn communication device 1
comprises a main body 2 and a band 3. Here, for convenience, the band 3 on one side to which
the speaker 4 is attached will be described, and the band to which the microphone is attached is
the same as the band except the air chamber described later will not be described.
[0016]
The arm-worn communication device 1 performs communication by putting the band 3 part on
the ear. A speaker 4 is provided in the housing 5 at a portion to be in contact with the ear. The
speaker 4 is embedded in the recess of the housing 5 and then embedded by the housing cover
6. A sound port 7 for connecting the inside and the outside of the housing 5 after mounting is
formed in the housing cover 6 as a sound output port. As a result, an air passage passing through
the speaker 4 and the outside of the housing cover 6 is secured, and efficient sound transmission
becomes possible. As a site where the above-mentioned sound port 7 is pierced, a portion which
faces an acoustic device is preferred.
[0017]
Just in front of the sound emitting portion 8 of the speaker 4, an air chamber 9 formed by the
housing cover 6 is provided. The air chamber 9 is air-tight, and the swing of air necessary for
sound transmission is secured. In addition, a waterproof sheet 10 is attached to the back of the
housing cover 6 in order to prevent rain, sweat and the like from entering the speaker 4. As a site
¦ part to which the prevention sheet ¦ seat 10 is stuck, it may be only the connection part of the
air chamber 9 and the said sound opening 7, or even if it is an inner wall of the air chamber 9
containing the said connection part as shown to a figure. Good. As the waterproof sheet 10, it is
preferable to use a moisture-permeable, waterproof sheet that allows moisture to pass while
maintaining the waterproof function.
[0018]
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A cushion 11 is provided on the band 3 facing the user's face. The cushion 11 has a sound
conducting port 12 at a position different from the position where the sound port 7 is extended
outward in a substantially vertical direction with respect to the housing 5. Here, the position of
the case 5 extending substantially perpendicularly outward with respect to the housing 5 means
that the center axis of the sound port 7 is substantially perpendicular to the housing 5 and the
center axis is extended outward. Position at which the cushion 11 is hit. The term generally
perpendicular refers to the case where the sound opening 7 and the sound conduction port 12
overlap even if the axis is slightly deviated from the mathematical vertical, a position extended
substantially outward with respect to the housing. It is because it contains in ". Here, the case
cover 6 is included in the case 5. As a material of the cushion 11, a soft material such as silicone
rubber or urethane resin is preferable.
[0019]
The sound conduction port 12 makes it possible to conduct the sound from the speaker 4. In
addition, since the sound port 7 and the sound transmission port 12 are not arranged in a
straight line, even if a groove is formed in the path connecting the both ports 7 and 12 in the
housing cover 6, the device for enlarging the sound path is realized. Good. If the cushion has
such a configuration, even if the dust or the like of the sound conduction port 12 is removed
from the outer surface of the cushion 11 with a thin rod material, the rod material in the sound
port 7 of the housing cover 6 Will not touch. If the sound port 7 is not touched, the waterproof
sheet 10 attached to the back of the sound port 7 is not touched.
[0020]
The cushion 11 maintains the above-mentioned positional relationship by engaging 13 with the
housing cover 6. As for the manner of engagement, as shown in the figure, it may be hooked to
the hook portion of the housing cover 6 or may be fitted into a hole or a projection provided on
the housing cover 6. Furthermore, a part may be hooked on the engaging part provided in a part
of the housing cover 6 and the other part may be covered so as to wrap the housing cover 6 and
the housing 5. In this way, if the cushion can be removed by engagement, if the cushion becomes
dirty, it is convenient to be able to easily remove wrinkles, dust and the like due to sweat by
removing only the cushion and washing with water.
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[0021]
FIG. 2 is a side sectional view showing a structure for projecting a cushion attached to a housing
cover in the vicinity of a string connecting a hinge of a curved band portion and a speaker tip
and having a sound conducting port at the protruding position. The cushion 31 in this case has a
dome shape in the vicinity of the string connecting the hinge of the housing and the tip end of
the speaker, and has a dome shape, and the waterproof structure of the housing cover 26 and the
speaker 24 inside Etc. are the same as in FIG. However, by arranging the sound conduction port
32 of the cushion 31 in the vicinity of a string connecting the hinge portion of the housing and
the tip end of the speaker portion, the distance from the ear to the sound conduction port 32 is
shortened and the gap is eliminated. As a result, the sound emitted from the sound conduction
port 32 does not leak to the outside and can be heard well. In addition, I was able to improve the
secrecy by eliminating the sound leakage to the outside.
[0022]
As described above, according to the cushion of the arm-worn type communication device
according to the present invention, the sound port 7 of the band case cover 6 and the sound
conduction port 12 of the cushion do not overlap. When removing dirt, dust and the like attached
to the microphone, the microphone 4, the speaker 4 and the tarpaulin 10 are not accidentally
damaged. In addition, in the case of a curved band 3 formed of plastic or the like, it is difficult to
conform to the contour of the face even when placed on the ear during a call, so the sound
opening does not contact the ear and is hard to hear. It was difficult to secure the secrecy.
According to the present invention, by disposing the cushion 11 on the arm-worn type
communication device, the adhesion with the ear can be increased, and the sound can be
prevented from being scattered, which makes it easy to hear. Furthermore, the cushion is
appropriately crushed even when wearing the arm-worn type communication device on the arm
to fill a gap formed between the arm and the arm, thereby improving the holding power and thus
improving the portability of the communication device. be able to.
[0023]
As described above, according to the arm-worn type communication device according to the
present invention, since the sound port of the band case cover and the sound transmission port
of the cushion do not overlap, around the sound transmission port There is no risk of
accidentally damaging the built-in audio equipment when removing adhering dirt, dust and the
like.
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[0024]
Further, according to the present invention, since the air chamber is formed to face the sound
emitting portion of the speaker embedded in the housing and the waterproof sheet is attached to
the back surface, the sound from the speaker Spreads easily, and waterproofness is also
maintained.
In addition, since the sound port on the band case cover and the sound transmission port of the
cushion do not overlap, when removing dirt, dust, etc. attached around the sound transmission
port, the moisture transmission / water proof sheet and the built-in acoustic device I will not hurt
you.
[0025]
Further, according to the arm-mounted communication device according to the present
invention, the waterproof sheet is attached to the rear side of the sound port of the housing cover
and facing the microphone, so that the microphone embedded in the housing can be used. Sweat,
water will not penetrate. In the cushion engaged with the housing cover, a sound transmission
port is formed at a position different from the position in which the sound port is extended
substantially perpendicularly outward with respect to the housing. As a result, the sound can be
transmitted, and even if dust or the like from the sound conduction port is removed from the
outer surface of the cushion with a thin rod, the waterproof sheet and the microphone will not be
damaged.
[0026]
Further, according to the arm-mounted communication device according to the present
invention, in the curved band formed by plastic etc., it is difficult to conform to the contour of the
face even when placed on the ear at the time of a call, so the sound opening does not contact the
ear. By arranging a cushion for things that are difficult to hear, adhesion with the ear can be
increased, it can be heard more easily, and confidential speech performance can be enhanced.
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