JP2005260824

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DESCRIPTION JP2005260824
PROBLEM TO BE SOLVED: To provide a hearing aid provided with a liquid substance intrusion
preventing structure capable of preventing liquid substances such as oil in the liquid earlobe and
the ear canal from invading the inside of the hearing aid. SOLUTION: An earlobe-preventing tip 5
comprising a filter 11 made of paper or non-woven fabric is provided at the mouth of an earshaped hearing aid 1. The paper or non-woven filter 11 is excellent in absorbing liquid
substances such as oil in the liquid earlobe and the external ear canal, so that the liquid
substance is prevented from entering the inside of the ear-shaped hearing aid 1 . Further, by
forming the hole 11a in the center of the filter 11, even when the filter 11 that has absorbed the
liquid substance is clogged, it is possible to make a sound from the hole 11a. [Selected figure]
Figure 1
Hearing aid with liquid substance intrusion prevention structure
[0001]
The present invention relates to a hearing aid provided with a liquid substance intrusion
preventing structure for preventing liquid substances such as oil in the liquid earlobe and the ear
canal from invading the inside of the hearing aid.
[0002]
In the case of an ear-shaped hearing aid, when the hearing aid is inserted into the ear canal, the
tip of the ear canal attached to the wall of the ear canal does not act as a filter on the mouth so
that it does not enter the inside of the hearing aid from the mouth. There are attached a large
number of fine-holed and replaceable anti-tarnish protection tips (see, for example, Patent
Document 1).
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[0003]
Unexamined-Japanese-Patent No. 7-131898 gazette
[0004]
As described in Patent Document 1, by attaching an anti-earbladder tip consisting of a filter
having a large number of fine holes in the sound port, it is possible to prevent the solid earlobe
from intruding into the inside of the hearing aid.
However, liquid substances such as oil in the liquid earlobe and the ear canal pass through the
earlobe protection tip and enter the inside of the hearing aid, which clogs the mesh portion of the
acoustic damper that adjusts the output sound, As a result, there is a problem that no sound is
produced from the hearing aid, which may further cause troubles such as earphones.
[0005]
Since the acoustic damper can not be replaced by the user of the hearing aid, the acoustic
damper may be replaced by a hearing aid retailer or the like every time the acoustic damper is
clogged with a liquid earlobe or a liquid substance such as oil secreted in the ear canal. I had to
ask for replacement, and it took time and effort.
[0006]
The present invention has been made in view of such problems in the prior art, and the object of
the present invention is to use the inside of the hearing aid as a liquid substance such as oil that
is secreted in the liquid earlobe or the ear canal It is an object of the present invention to provide
a hearing aid provided with a liquid substance intrusion preventing structure capable of
preventing intrusion of the liquid.
[0007]
In order to solve the above-mentioned problems, the invention according to claim 1 is provided
with an earlobe preventing tip made of a paper or non-woven filter at the sound port of a hearing
aid.
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[0008]
According to a second aspect of the present invention, in the hearing aid provided with the liquid
substance intrusion preventing structure according to the first aspect, a hole is opened in the
central portion of the filter.
[0009]
As described above, according to the first aspect of the present invention, the paper or nonwoven filter absorbs liquid substances such as oil secreted from the liquid earlobe and the ear
canal, so that they enter the inside of the hearing aid. And the possibility of clogging of the mesh
portion of the acoustic damper is reduced.
[0010]
According to the invention of claim 2, even when the paper or non-woven filter absorbs and clogs
a liquid substance such as oil secreted in the liquid earlobe or the ear canal, sound can be
emitted from the hole. .
[0011]
Embodiments of the present invention will be described below based on the attached drawings.
Here, FIG. 1 is a perspective view of a hearing aid provided with the liquid substance intrusion
preventing structure according to the present invention, and FIG. 2 is a cross-sectional view of
the same.
1 and 2 show a part of the hearing aid.
[0012]
In the hearing aid provided with the liquid substance intrusion preventing structure according to
the present invention, as shown in FIGS. 1 and 2, the opening 3 as a sound port is opened at the
end of the shell member 2 constituting the ear-shaped hearing aid 1. The cylindrical member 4 is
fitted in the opening 3, and the removable anti-earbush tip 5 is attached to the cylindrical
member 4.
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6 is an earphone, 7 is an earphone tube, and 8 is an acoustic damper.
[0013]
The anti-earbush chip 5 comprises a cylindrical chip body 10 and a filter 11 stretched
substantially in the middle of the chip body 10 so as to close the opening of the chip body 10.
The filter 11 is formed of a paper or non-woven fabric excellent in absorption of a liquid
substance such as liquid earwax or oil secreted in the ear canal.
Further, a hole 11 a is opened at the center of the filter 11.
[0014]
The operation of the hearing aid provided with the liquid substance intrusion preventing
structure according to the present invention configured as described above will be described.
When the wearer inserts or inserts the ear-shaped hearing aid 1 into the ear canal, if liquid
matter such as liquid earlobe or oil secreted in the ear canal penetrates the earlobe protection tip
5, the liquid matter is paper or non-woven fabric It is absorbed by the filter 11 made of
[0015]
Therefore, a liquid substance such as liquid earlobe or oil secreted in the ear canal does not pass
through the filter 11 to reach the mesh portion of the acoustic damper 8 provided in the
earphone tube 7.
[0016]
Furthermore, even if the filter 11 absorbs a liquid substance such as liquid earlobe or oil secreted
in the ear canal and the filter 11 is clogged, the hole 11a is opened at the center of the filter 11,
so the earphone The sound produced by the speaker 6 passes through the hole 11a and reaches
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the external ear canal, so the function as the ear-shaped hearing aid 1 is not impaired.
[0017]
Further, since the earlobe protection chip 5 is replaceable, when the filter 11 is clogged, the user
can replace it without asking the hearing aid dealer or the like to replace it.
[0018]
According to the present invention, the liquid substance is absorbed by the paper or non-woven
filter even if the liquid substance such as oil in the liquid earlobe or the ear canal penetrates into
the earlobe preventing chip, so the liquid substance is absorbed. It is possible to prevent entry
into the inside of the hearing aid, and it is not necessary to ask a hearing aid retailer or the like to
replace the acoustic damper, the usability of the hearing aid is improved, and the hearing aid can
be popularized.
[0019]
The perspective view of the hearing aid provided with the liquid substance intrusion preventing
structure according to the present invention The sectional view of the hearing aid provided with
the liquid substance intrusion preventing structure according to the present invention
Explanation of sign
[0020]
DESCRIPTION OF SYMBOLS 1 ... Ear form hearing aid, 2 ... shell member, 3 ... opening part, 4 ...
cylinder member, 5 ... earlobe prevention tip, 6 ... earphone, 7 ... earphone tube, 8 ... acoustic
damper, 10 ... tip body, 11 ... filter , 11a ... holes.
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