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JPS55130479

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DESCRIPTION JPS55130479
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a sectional view and a partially cutaway front
view showing a typical embodiment of a vibration pickup type ear microphone according to the
present invention, and FIG. It is sectional drawing of the conventional vibration pick-up type ear
microphone. In the figure, 1 is a sensing part, 2 is an earpiece insertion part, 3 is an earpiece
base, 4 is an earpiece body, 5 is a vibration pickup element, and 7 is a stopper-one member.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement
of a vibration pick-up type ear microphone. More specifically, the present invention relates to a
vibration pickup type ear microphone excellent in versatility, having no discomfort even when
worn for a long time, and being able to closely fit according to the size of the entrance to the ear
canal of each person. . The speaker's own voice vibration is bone-conducted and transmitted to
the wall of the ear canal. It is a vibration Bic-Thu star ear microphone that electrically extracts
this bone conduction sound signal by the vibration Bic-R-F, which is attached to the ear canal. As
this type of ear microphone, as described in the specific KU, Japanese Utility Model Publication
Nos. 53-44427, 53-444211, 53-44429, and 52-19544, external impact is received. There are
also microphone microphones that are easy to move toward the # part of the ear canal, but in the
case of most of the cases, the special telephones @ 53-39763 and 53-49607 proposed by one of
the present inventors, 53-44421, 53-444222-, 53-44423, 53-44426, real open @ 51-121409,
52-51620, and each gazette of JP-A 1i 852-64922, and As described in the official gazettes of
Japanese Patent Application Publication Nos. 11452 to 23527, Japanese Utility Model
Publication No. 53-44425, and Japanese Patent Publication No. 53-39764, external shocks are
Only be is provided a base which also functions as a part stopper to make ear microphone body
does not move toward the deep portion of the ear canal to the outside of the ear canal. The
configuration of a peristaltic big-comb-type ear microphone having an earpiece base that doubles
as a part of a stopper as seen in the above-mentioned prior art is as follows, for example. That is,
as shown in FIG. 3 of the above-mentioned Japanese Utility Model Application Laid-Open No. 52-
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23527 (FIG. 4 of the attached drawing of the present application), it has a sensing unit 1 for
sensing the bone conduction voice signal of the wearer himself transmitting And the earpiece
body 4 integrally provided with an earpiece base 113 smaller in diameter than the sensing sl and
located at the entrance portion of the ear canal at the proximal end of the earpiece insertion s2
of 1-3 to be inserted into the ear canal The vibration big end tube element 5 for converting the
bone conduction voice signal sensed by the sensing unit 1 into an electrical signal is a friend
configuration. Then, in this vibration pickup type ear microphone, the earpiece base s3 is formed
to have a diameter smaller than the diameter of the sensing portion 1, and this earpiece base 3 is
covered with a shock absorber 6 such as rubber so that it can be used as a stopper The
configuration was
Similarly, as a technique for covering a buffer body also serving as a stopper on the earpiece base
located outside the external ear canal, the technique disclosed in the Japanese Utility Model
Application Publication No. 52-7624 has been proposed. One of the inventors of the present
invention has proposed the techniques described in the respective publications of Japanese
Examined Patent Publication No. 53-44421) and Japanese Utility Model Publication No. 5216919 (Japanese Patent Publication No. 53-44423). As shown in FIG. 5, a shock absorber 6 such
as a rubber sheet was covered on a group s3 of the ear 1 ichon, so that the front thIII of this
group s3 could be used as a stopper. However, the inner diameter of the ear canal population
varies greatly depending on the gender, 4-race or age of the male and female, and even in the
case of an adult male, there is a considerable difference. Therefore, even for the ear microphone
provided with the buffer 6 shown in FIGS. 4 and 5, the C value itself is intended for
soundproofing and is formed of an extremely thin rubber sheet or the like. Therefore, it is
difficult and not versatile to closely fit one ear microphone according to the size of the ear canal
population of each person, so it is recommended that this microphone be worn for a long time
and the sensing unit l There is a drawback that you feel pain in the deep part of the ear canal
that you are in contact with. The present invention has been made in view of the point of
chewing, and the wearing feeling is good without feeling pain in the deep area of the ear canal
even when worn for a long time, and the size of the ear canal population part of each person
Depending on size, it is possible to fit and fit, to be versatile, and to provide a peristaltic
hyakanophous ear microphone that can be detected clearly without fear that the sensing unit
moves in the ear canal at the time of wearing. The purpose is to The details of the present
invention for achieving the above object and the other objects described later will be described
below with reference to the illustrated embodiment. According to the present invention, a
vibrating hysoku anoff element is provided in the earpiece main body 4 integrally including the
earpiece insertion portion 2 having the sensing portion 1 described above and the earheater base
3 located outside the external ear canal and having a diameter larger than the sensing portion l.
The present invention is characterized in that the following configuration t--added to a
conventionally known vibration big-end probe microphone provided with the reference numeral
5 is added. That is, to explain with reference to a representative embodiment not shown in FIGS.
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1 to 3, the outer periphery of the proximal end of the earpiece insertion portion 20 has a
diameter larger than the diameter of the sensing portion 1 and the earpiece insertion portion 20.
Covering the stopper member 7 with a thick-walled member (specifically, 1.5 m1 or more,
preferably 42 I or more) which is smaller than the diameter of A core made of a material that
transmits vibrations well, such as hard synthetic resin.
B) forming a b-9 by a soft 09 # material, specifically a soft synthetic resin such as a sponge or
polyethylene, a natural or synthetic rubber, or the like. According to a preferred embodiment of
the present invention, the length L of the earpiece insertion portion 2 is 1 to 3-, and the width t
of the stopper member 7 is 1/4 to 1/2 Ru. In addition, the diameter of the earpiece insertion s2
and the sensing fI 61 is 4 to 6 m. In addition, according to another preferred embodiment of the
invention, the outer surface of the stopper member 7 is slightly inclined 7 as it goes from the
base 311 to the sensing mIII 7 (specifically based on the center line of the eyelid main body 4)
An angle of 15 degrees or less, more preferably 10 degrees or less) 7 ′ ′-bar 87 ′. In the
figure, reference numeral 8 denotes a coincidence member which supports one end of the
vibration big amplifier element 5 and is positioned in the portion of the stopper single member 7.
The reference numeral 9 denotes a lead wire for drawing out the output current of the imaging
pickup element 5 to the outside, and 10 denotes a lid which is crowned at a rear 4 opening
portion of the base s2. In the case of non-invention, it is possible to simultaneously receive an
incoming call by m-following a normal speaker (including earphone t-). For example, as shown in
FIG. 2, it is desirable to form the receiving sound passage pipe 11 (a buffer material such as
rubber or soft synthetic resin) on the base 3. ) And fix the sound path to the space room Q in the
base 3 and provide one or more (for example, four at the foot interval) sound paths 12 in the
stopper member 7 for the external ear canal The entire outer circumference received voice of the
inserted earpiece insertion portion 2 may be passed. For example, as shown in FIG. 3, a sound
path 12 may be provided in the earpiece insertion portion 2 inserted into the external ear canal
to allow the space chamber 6 to communicate with the inside of the external ear canal. In this
case, the sound path 12 may be directly connected to the sound path pipe 11 as shown by a
chain line in FIG. The vibration pickup type ear microphone according to the present invention is
used as follows. When the base 3 is gripped and inserted into the sensing m1lt-external ear
canal, any part of the stopper member 7 is closely fitted to the entrance to the external ear canal
regardless of the gender, virtue or age of the wearer Become. Therefore, even if the wearer
performs a radical action or external impact is applied to the 8-base 3, the sensing unit l does not
slide between the ear canal wall and the sensing unit 1, A clear voice is detected by the vibration
pickup element 5 as C. According to the present invention, a conventional well-known yoke-up
type in which a vibration pickup element is provided on an earpiece main body integrally
provided with a larger diameter earpiece base tube at the proximal end of an earpiece insertion
portion having a sensing portion. In the ear microphone, since the base end outer periphery of
the earpiece insertion portion is covered with a thick stopper 1 member having a specific
diameter, the whole ear microphone is supported in the ear canal artificial part by this member.
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Do not feel pain in the depths of the ear canal even when wearing, and further, the stopper, one
member is the above sensing part?
(4) Being formed of a flexible elastic body, it can be closely fitted with one ear microphone
according to the size of the entrance to the ear canal of each person, which is versatile and
enables clear voice detection, etc. The sensing unit has moved to the ear canal population even if
the wearer exerts an extreme physical movement, or even if the wearer receives an external
impact. 9 or movement to the deep side of the ear canal can be prevented, and there is an effect
that clear voice detection can be performed without giving pain to the wearer, and in particular,
the earpiece base protruding to the outside of the ear canal Because the sensing unit does not
move toward the depths of the ear canal due to the presence of the stone 7 <++ member and the
earpiece base larger in diameter than the stopper single member even when receiving a strong
impact in the depth direction of the ear canal safety There is an effect of the high, or the like.
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