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JPS55127490

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DESCRIPTION JPS55127490
BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 3 are 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. 4 is a conventional vibration pickup type It is a sectional view
showing an example of an ear microphone. . In the figure, 1 ...... sensing unit, 2 ...... base 3 ......
earpiece body 4 ...... vibration pickup element, 5 - - ... Stopper part, 51.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement
of the sway visquar, earbud icicle. More specifically, the excess 1-7 of the wearer <7. -Even if an
external impact is received by intense physical movement, there is no possibility that the bone
conduction sound signal sensing unit slides in the ear canal, clear sound detection is possible,
and the wearer's ear canal The present invention relates to a peristaltic pickup shop ear
microphone that has a good fit without damaging the wall. The speaker's own voice vibration
vibration is transmitted to the wall of the ear canal. It is a vibration pickup type 1-ear
microphone that electrically extracts this bone conduction sound signal by the vibration pickup
element attached to the ear canal. This stock's darling! Specifically, as the microphone, when it
receives an external impact as described in Japanese Utility Model Publication Nos. 53-44427,
53-44428, 53-44429, and Oka 52-19544, the ear microphone body There are also those that
are easy to move toward the depths of the ear canal, but in most cases, the line, Japanese
Examined Patent Publication No. 53-39763, Japanese Examined Patent Publication No. 5349607, and Japanese Patent Publication No. 53-44421 proposed by one of the present
inventors. 53-44422, Oka 53-44423, 53-444262-, T-51-12-409, 52-51620, and JP-A-5264,922, and Japanese Utility Model Publication No. 53- As described in the respective
publications of 44424, 53-44425 and JP-B-53-39764, even when the impact NIA is received
from the outside, the 1 phone 1 1 crophone main frame Is provided on the outside of the ear
canal of the base, which also serves as a part stopper to ↓ one does not move in the same Ke
deep in the ear canal. The configuration of the vibration Bic ツ made ear microphone having a
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base with a part of the stopper found in the prior art is av). すなわち、! As illustrated in FIG. 4,
a device that is inserted into the ear canal and transmitted to the ear appendage! The sensing
part l senses the sensing part l that senses the bone conduction sound signal of the person's own
and the base of the stool 2 outside the ear canal and outside the ear canal 2 In this configuration,
a vibrational bilinear transducer 4 for converting a bone conduction voice signal into an
electrical signal is provided. And, Stoutno-Corridor s # i as shown base i! The front face of 12 is
folded in a right-angled shape, or 3-11 m of the base 2 shown in broken lines in the lnJ figure is
folded at an angle of 9 °. However, the inner diameter of the entrance portion of the ear canal to
which this stopper partially abuts differs greatly depending on the sex, race, age, etc. of the male
and female, and there is also a considerable difference even in the case of an adult male.
Therefore, when wearing an ear microphone having a conventional stopper-cum-base, if the
wearer is a worker engaged in radical work such as a worker at a construction site or a coal
mining site, the wearer's extreme physical motion As a result, the ear microphone sensing unit
moves to the entrance of the ear canal, and a clear voice detection becomes difficult. At the same
time, due to the body movement of the wearer and the base receiving an external impact in the
direction of insertion of the ear canal into the ear, the sensing unit moves to the deep side of the
ear canal, each time rubbing the sensing unit on the curved wall portion of the ear canal And
there was a drawback that caused pain to the wearer. Although the bone conduction sound signal
in the wall of the ear canal can detect deep Stt of the ear canal or clear sound detection, the
depth of the ear canal becomes true near the arrival of the ear and is extremely sensitive to the
shaking with the object. It has not been possible conventionally to eliminate the pain of wearing
the microphone for a long time. Then, the objective of this invention is providing the vibration
big amp type ear microphone which can eliminate the said various defects seen in the
conventional vibration big amp type ear microphone. In the following, the uninvention will be
described in detail. A non-invention is characterized in that the following configuration is added
to a conventionally known vibration pickup type ear microphone in which the vibration pickup
element 4 is provided to the earpiece main body 3 having the sensing portion 12 and the base 2
described above. That is, in the case of the typical embodiment shown in FIGS. 1 to 3, the
diameter of the cylindrical earpiece body 3s between the sensing portion 1 and the base 2 is
smaller than the outer diameter of the cylindrical base and The outer diameter of the cylindrical
sensing portion l (a size that can be inserted into the external earlobe without difficulty,
specifically, a diameter of 4 to 6 flIl) is provided with a stopper s5 that plays a major role, and the
outer surface of this storb 11115 is Slightly inclined in a row <K * to the impression 9 III
(specifically, 14 J in the 5-earpiece main body 3! Itj! An angle of 15 degrees or less, more
preferably an angle of line 101 or less is set to 1-1 ls'. Further, the stopper s5 in the present
invention is not less than 173, more preferably 1/2 of the insertion length of the earpiece main
body portion usually inserted into the outer earlobe of the stopper portion 5 of the stopper
portion 5 It is best to set the length above. Incidentally, the reference numeral 6 is an inner fixed
member which supports one eyebrow of the vibration pickup element 4 and is located in the
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middle of the stopper 5 minutes. Reference numeral 7 denotes a lead wire drawn to the outside
of the output current of the vibration pickup element 4, and reference numeral 8 denotes a lid
covered with the rear end opening portion of the base 2.
In the present invention, by connecting with a conventional squi-- (including an earphone), C can
be made to allow reception to be performed simultaneously. For example, as shown in FIG. 2, it is
preferable that the base 2 be formed of a sound receiving pipe 9 (a rubber, a soft synthetic resin,
etc., and a buffer material). ) To fix the sound path to the vacancy indication q in the base s2, and
the stopper s5 is provided with a plurality of sound paths 10 (eg, four at regular intervals), The
receiving voice may pass through the outer periphery of the main body 3 inserted into the ear
canal. For example, as shown in FIG. 3, the main body 3 and the stopper s5 inserted into the ear
canal may be provided with a sound path 10 for communicating the space room G with the inside
of the ear canal. The sound pipe 9 may be directly connected to the sound path 10, and the
stopper part 5 in the present invention may be formed of an independent member. The vibration
pickup type ear microphone according to the present invention is used as follows. When the base
portion 2 is gripped and the sensing portion l is inserted into the ear canal, any portion of the
tapered portion 5 'of the stopper portion 5 surface is the entrance to the ear canal regardless of
the gender, race, age of the wearer It will be vM close fitting place in the part. Therefore, even if
the wearer performs a radical action or an external impact is applied to the base Ii2, the sensing
portion ltj does not move by rubbing with the outer ear, and the four known 111% vibration big
ag powers A clear 7-obvious voice will be detected by 4. According to the present invention, in a
conventional vibration big-knob type ear microphone provided with a vibration pickup element
in an earpiece main body having a sensing portion and a base, Because the outer surface of the
stopper part is part of the specific shape of the data, the wearer's q) inner diameter of the
entrance to the ear canal may differ in size depending on the gender, human resources, age, etc.
At the time of wearing, any part of the tapered part is closely fitted to the entrance of the ear
canal, so that even if the wearer performs a radical physical action or the base receives an
external impact, the sensing unit is the outer ear It is possible to prevent moving to the
perpetrator 1 or moving to the ear canal depth S *, and there is an effect of clear i voice detection
without giving pain to the wearer. In particular, it can be fitted closely according to the dog size
of the entrance portion of the ear canal including one ear microphone Oi gold each, and there is
versatility, and the fixing of the ear microphone is carried out by a part of the stopper of the
specific configuration. Since it is performed at the entrance portion, it can be worn for a long
time as compared with the technique of fixing the ear microphone in the deep portion of the ear
canal by the sensing portion as described in the respective publications of JP-B-53-44423 and
JP-A-53-44427. It produces effects such as no discomfort.
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