JP2005217475A - Hearing aid with earwax infiltration preventing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an hearing aid provided with an earwax infiltration preventing structure, with which earwax is unlikely to infiltrate earwax guard and the like. <P>SOLUTION: A circular groove 3 is formed on a shell member 2 constituting an ear hole type hearing aid 1. The groove 3 is formed by a concave 2a provided on the shell member 2, and a cylindrical member (earphone tube) 4 fitted with an opening 2b, provided as a sound hole on the center of this concave 2a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a hearing aid equipped with an earwax intrusion prevention structure for preventing earwax adhering to a wall portion of the ear canal from entering the sound outlet (sound mouth) of the hearing aid.

  In the ear-shaped hearing aid, when the hearing aid is inserted into the ear canal, the ear wax adhering to the wall of the ear canal that has been scraped off the tip of the ear hearing aid acts as a filter in the mouth so that it does not enter the hearing aid from the mouth. An interchangeable earwax prevention chip (earwax guard) having a number of fine holes is attached (for example, see Patent Document 1).

  In addition, the portion of the shell member where the sound mouth is formed is recessed to form a recess, and the earwax guard is attached to the sound mouth disposed on the bottom surface of the recess so that the earwax does not adhere directly to the earwax guard. It is also known to do.

JP 7-131898 A

However, as described in Patent Document 1, even if an earwax guard is attached to the sound outlet, it cannot prevent the earwax from adhering to the earwax guard, and frequently when the amount of earwax is large Must be replaced.
In addition, even if the part to which the earwax guard is attached is recessed, the provision of the recess only increases the amount of earwax adhering until the earwax reaches the earwax guard. It is not a fundamental solution to the problem of preventing ear wax from sticking.

  The present invention has been made in view of such problems of the prior art, and the object of the present invention is to provide a hearing aid having a structure for preventing the invasion of earwax that is difficult to adhere to the earwax guard or the like. It is something to be offered.

  In order to solve the above-mentioned problem, the invention according to claim 1 is formed by forming an annular groove around the sound opening of the hearing aid.

  According to a second aspect of the present invention, in the hearing aid provided with the earwax intrusion prevention structure according to the first aspect, the groove portion is formed by a concave portion formed in the shell member and a cylindrical member fitted into an opening provided in the concave portion. It was.

  The invention according to claim 3 is the hearing aid having the earwax intrusion prevention structure according to claim 1, wherein the groove is formed integrally with the shell member.

  According to a fourth aspect of the present invention, in the hearing aid provided with the earwax intrusion prevention structure according to the first, second, or third aspect, an earwax guard is detachably attached to the sound port.

  According to a fifth aspect of the present invention, an annular groove is formed in the ear guard that is detachably attached to the sound opening of the hearing aid.

  As described above, according to the first aspect of the present invention, when the hearing aid is inserted into the ear canal, the earwax adhered to the wall of the ear canal, the tip of which has been scraped off, is formed around the sound outlet of the hearing aid. Since it accumulates in the annular groove, the possibility that the earwax blocks the sound mouth is reduced.

  According to the invention which concerns on Claim 2, a groove part can be easily provided in the circumference | surroundings of the sound mouth of a hearing aid only by fitting a cylinder member in the opening of the recessed part formed in the shell member.

  According to the invention which concerns on Claim 3, since a groove part is integrally formed with a shell member, it can contribute to reduction of a number of parts.

  According to the fourth aspect of the present invention, since the earwax guard is detachably attached to the sound port, maintenance is facilitated.

  According to the fifth aspect of the present invention, even when the shell member is small and the groove portion cannot be formed in the shell member, the earwax accumulates in the annular groove portion formed in the earwax guard, so that the earwax may block the sound mouth. Becomes lower.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a partial cross-sectional perspective view and cross-sectional view of a first embodiment of a hearing aid equipped with a structure for preventing ear penetration according to the present invention, and FIG. 2 is a partial cross-sectional perspective view of the second embodiment as well. FIG. 3 is a partially sectional perspective view and a sectional view of the third embodiment, and FIG. 4 is a partially sectional perspective view and a sectional view of the fourth embodiment. 1 to 4 show a part of the hearing aid.

  As shown in FIG. 1, the first embodiment of a hearing aid having an earwax intrusion prevention structure according to the present invention has an annular groove 3 formed in a shell member 2 that constitutes an ear-shaped hearing aid 1. The groove 3 is formed by a concave portion 2a provided in the shell member 2 and a cylindrical member (earphone tube) 4 fitted into an opening 2b opened as a sound opening in the center of the concave portion 2a.

  One end 4 a of the cylindrical member 4 is opened, and the other end 4 b is connected to the sound port 5 a of the earphone 5. And the front-end | tip part 2c of the shell member 2 protrudes from the one end 4a of the cylinder member 4, and is formed.

The operation of the first embodiment configured as described above will be described. When the wearer inserts the earlobe hearing aid 1 into the ear canal, the tip 2c of the shell member 2 may scrape off the earwax adhering to the wall of the ear canal. Most of the earwax scraped off enters the groove 3 formed inside the tip 2c. And until the groove part 3 is filled with earwax, the possibility that the earwax gets over the wall part of the cylinder member 4 and enters the inside of the cylinder member 4 is low.

  In addition, since the one end 4a of the cylindrical member 4 does not protrude from the distal end portion 2c of the shell member 2, the possibility that the one end 4a scrapes off the ear wax adhering to the wall portion of the ear canal is low. Therefore, the one end 4 a of the cylindrical member 4 does not scrape the earwax directly into the cylindrical member 4.

  As shown in FIG. 2, the second embodiment of the hearing aid having the earwax intrusion prevention structure according to the present invention has an annular groove portion 13 formed in the shell member 12 constituting the earphone type hearing aid 11. The groove 13 is formed by a recess 12a provided in the shell member 12 and a cylindrical member 14 fitted into a large-diameter hole 12b opened as a sound opening in the center of the recess 12a.

  One end 14a of the tubular member 14 is fitted with an earwax guard 15, and the other end 14b is in contact with a step portion 12d formed by a large diameter hole 12b and a small diameter hole 12c. Furthermore, the other end 16 b of a cylindrical connecting member (earphone tube) 16 having one end 16 a fitted in the small diameter hole 12 c is connected to the sound port 17 a of the earphone 17. The distal end portion 12 d of the shell member 12 is formed so as to protrude from the distal end 15 a of the earwax guard 15 attached to the cylindrical member 14.

  The earwax guard 15 is formed in a cylindrical shape with a bottom, and a plurality of sound ports 15b for preventing sound from passing through the sound are opened at the bottom, and a space for storing earwax is provided above the sound port 15b. Further, the earwax guard 15 is detachably attached to the one end 14a of the cylindrical member 14 with a predetermined mounting force, so that it can be exchanged.

  The operation of the second embodiment configured as described above will be described. When the wearer inserts the ear-shaped hearing aid 11 into the ear canal, the tip 12d of the shell member 12 may scrape off the ear wax adhering to the wall of the ear canal. Most of the earwax that has been scraped off enters the groove 13 formed inside the distal end portion 12d. Until the groove 13 is filled with earwax, it is unlikely that the earwax will get over the wall of the tubular member 14 and enter the earwax guard 15.

  Further, since the tip 15a of the ear guard 15 does not protrude beyond the tip 12d of the shell member 12, the possibility that the tip 15a scrapes off the ear wax attached to the wall of the ear canal is low. Therefore, the tip 15 a of the earwax guard 15 does not scrape the earwax directly and put it into the earwax guard 15. Even if the earwax clogs the sound port 15b of the earwax guard 15 after a long period of use, the earwax guard 15 is removable, so the earwax guard 15 may be removed and cleaned. It may be exchanged.

  As shown in FIG. 3, the third embodiment of the hearing aid having the earwax intrusion prevention structure according to the present invention has an annular groove portion 23 formed in the shell member 22 constituting the earphone type hearing aid 21. The groove 23 is formed integrally with the shell member 22 so as to surround an opening 24 opened as a sound opening at the end of the shell member 22.

  One end 24 a of the opening 24 is fitted with an earwax guard 25, and the other end 24 b is connected to a sound port 27 a of the earphone 27 via a cylindrical connecting member (earphone tube) 26. And the front-end | tip part 22a of the shell member 22 is formed so that it may protrude rather than the front-end | tip 25a of the earwax guard 25 with which the one end 24a of the opening part 24 was mounted | worn.

  The earwax guard 25 is formed in a cylindrical shape with a bottom, and a plurality of sound ports 25b for preventing sound from passing through the sound are opened at the bottom, and a space for storing earwax is provided above the sound ports 25b. In addition, the earwax guard 25 is detachably attached to the one end 24a of the opening 24 with a predetermined mounting force, and can be exchanged.

  The operation of the third embodiment configured as described above will be described. When the wearer inserts the earlobe hearing aid 21 into the ear canal, the tip 22a of the shell member 22 may scrape off the earwax adhered to the wall of the ear canal. Most of the earwax that has been scraped off enters the groove 23 formed inside the tip 22a. And until the groove part 23 is filled with earwax, the possibility that the earwax gets over the wall part of the groove part 23 and enters the inside of the earwax guard 25 is low.

  Moreover, since the tip 25a of the earwax guard 25 does not protrude from the tip 22a of the shell member 22, the possibility that the tip 25a scrapes off the earwax adhered to the wall of the ear canal is low. Therefore, the tip 25 a of the earwax guard 25 does not scrape the earwax directly and put it into the earwax guard 25. Even if the earwax clogs the sound opening 25b of the earwax guard 25 over a long period of use, the earwax guard 25 is removable, so the earwax guard 25 may be removed and cleaned. It may be exchanged.

  As shown in FIG. 4, the fourth embodiment of the hearing aid having the ear wax intrusion prevention structure according to the present invention has an opening 33 as a sound opening at the end of the shell member 32 constituting the ear-shaped hearing aid 31. An earwax guard 34 is attached to the opening 33.

  The opening 33 includes a large-diameter hole 33a and a small-diameter hole 33b. The above-mentioned ear guard 34 is attached to the large-diameter hole 33a via a cylindrical member 35, and a cylindrical connecting member (earphone tube) 36 is attached to the small-diameter hole 33b. The sound port 37a of the earphone 37 is connected via the.

  The earwax guard 34 is formed in a cylindrical shape with a bottom, a cylindrical body 38 is provided at the center of the bottom, and an annular groove 39 is formed outside the cylindrical body 38 so as to surround the cylindrical body 38. At the bottom of the groove 39, a plurality of sound ports 39a are formed to prevent the earwax from passing through the sound. Moreover, the cylinder 38 also plays a role as the sound port 39a.

  The earwax guard 34 can be exchanged because it is detachably attached to the cylindrical member 35 fitted in the large-diameter hole 33a with a predetermined mounting force. The outer edge portion 34 a of the earwax guard 34 is formed so as to protrude from the tip 38 a of the cylindrical body 38.

  As described above, even when the shell member 32 is small and the groove portion cannot be formed in the shell member 32, the earwax is accumulated in the groove portion 39 by providing the groove portion 39 in the earwax guard 34. The possibility of closing the mouth 39a can be reduced.

  The operation of the fourth embodiment configured as described above will be described. When the wearer inserts the earlobe hearing aid 31 into the ear canal, the distal end portion 32a of the shell member 32 may scrape off the earwax adhered to the wall of the ear canal. Most of the earwax thus scraped off enters the groove 39 formed in the earwax guard 34. And until the groove part 39 is filled with the earwax, the possibility that the earwax gets over the wall part of the cylinder 38 and enters the inside of the cylinder 38 is low.

  Further, since the tip 38a of the cylindrical body 38 does not protrude from the outer edge portion 34a of the earwax guard 34, the possibility that the tip 38a scrapes off the earwax adhered to the wall portion of the ear canal is low. Therefore, the tip 38a of the cylinder 38 does not scrape ear wax directly into the cylinder 38. Even if the earwax clogs the sound mouth 39a of the earwax guard 34 after a long period of use, the earwax guard 34 is removable, so the earwax guard 34 may be removed and cleaned. It may be exchanged.

  According to the present invention, when the hearing aid is inserted into the ear canal, ear wax adhering to the wall portion of the ear canal whose tip has been scraped is accumulated in the annular groove formed around the sound mouth of the hearing aid. Is less likely to block the sound mouth, the usability of the hearing aid is improved, and the hearing aid is spread.

1A and 1B are a partial cross-sectional perspective view and a cross-sectional view of a first embodiment of a hearing aid equipped with a structure for preventing ear invasion according to the present invention. A partial cross-sectional perspective view (a) and a cross-sectional view (b) of a second embodiment of a hearing aid equipped with a structure for preventing ear invasion according to the present invention. Partial cross-sectional perspective view (a) and cross-sectional view (b) of a third embodiment of a hearing aid provided with a structure for preventing ear invasion according to the present invention Partial cross-sectional perspective view (a) and cross-sectional view (b) of a fourth embodiment of a hearing aid equipped with a structure for preventing ear invasion according to the present invention

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1, 11, 21, 31 ... Ear-shaped hearing aid, 2, 12, 22, 32 ... Shell member, 2a, 12a ... Recessed part, 3, 13, 23, 39 ... Groove part, 4, 14 ... Cylindrical member, 15, 25 , 34 ... Earwax guard.

Claims (5)

A hearing aid having a structure for preventing invasion of earwax, characterized in that an annular groove is formed around the sound outlet of the hearing aid. The hearing aid provided with the earwax intrusion prevention structure according to claim 1, wherein the groove is formed by a recess formed in the shell member and a cylindrical member fitted into an opening provided in the recess. The hearing aid provided with the earwax intrusion prevention structure according to claim 1, wherein the groove is formed integrally with the shell member. The hearing aid provided with the ear wax intrusion prevention structure according to claim 1, 2 or 3, wherein a wax guard is detachably attached to the sound port. A hearing aid equipped with a structure for preventing invasion of earwax, characterized in that an annular groove is formed in an earwax guard that is detachably attached to the sound outlet of the hearing aid.