JP5205142B2 - Ear hole type hearing aid - Google Patents

Description

  The present invention relates to an earpiece type hearing aid including a shell that is attached to the ear canal of a wearer.

  As a conventional earphone type hearing aid, after attaching a shell made according to the shape of the ear canal of the wearer to the face plate on which an electric circuit, battery holder, microphone, volume, etc. are mounted, It is known to finish by removing the excess part of the plate along the outline of the shell. A linear member for taking out an ear-shaped hearing aid from the external auditory canal is known to be passed through a through hole provided in the face plate, provided with a small lump at the end, and adhered and fixed to the face plate.

Further, a technique is disclosed in which a face plate is automatically produced in advance, a shell opening is formed in a tapered shape in accordance with the peripheral shape of the face plate, and the face plate is attached to the shell opening (for example, , See Patent Document 1).
Also disclosed is a technique for producing a frame for fitting a module on which an electric circuit, a battery holder or the like is mounted, producing a shell for attaching the frame, and attaching the module to the shell via the frame by snap-in. (For example, refer to Patent Document 2).

JP 2005-509307 A Special table 2006-520165 gazette

  However, the work of cutting the face plate along the contour of the shell is time-consuming and requires a high level of skill for the operator to finish it cleanly. Moreover, in the technique described in Patent Document 1, the attachment work is simplified, but the maintenance is difficult because the adhesion must be peeled off at the time of removal. Moreover, in the technique described in Patent Document 2, it is easy to attach the module to the frame, but it is difficult to remove it. Furthermore, the frame, shell, and module must be manufactured with high accuracy so that there is no gap on the surface. Further, when the take-out linear member is damaged, the face plate must be peeled off from the shell and replaced.

  The present invention has been made in view of such problems of the prior art, and an object of the present invention is to provide an earphone type hearing aid in which the module can be easily attached to and detached from the shell. It is.

In order to solve the above-mentioned problem, the invention according to claim 1 is an earphone type hearing aid in which a module mounted with an electric circuit, a battery holder or the like is attached to a shell to be attached to the ear canal of a wearer, and the trimmer lock is attached to the module. A member is provided, and a lock receiving portion to be engaged with the trimmer type lock member is formed in the shell, and an opening for opening and closing the battery holder, an opening for projecting the volume, and a sound are taken into the microphone. The surface panel which formed the sound mouth for attaching is attached .

  According to a second aspect of the present invention, in the earphone type hearing aid according to the first aspect, the module has a predetermined shape.

According to a third aspect of the present invention, there is provided the earphone type hearing aid according to the first or second aspect, wherein a through hole that communicates the surface of the shell and the side surface of the opening is provided, and the earphone type hearing aid is taken out from the ear canal in the through hole. For this purpose, the opening-side end of the linear member for extraction is formed into a plate shape.

According to the first aspect of the present invention, since the module is attached to the shell by the trimmer lock member, the adhesive is not used, so that the module can be easily attached and detached. In addition, since the module is covered with the surface panel by attaching the surface panel to the module, even if the shape accuracy of the module and the shell is not so high, it does not affect the beauty as an ear-shaped hearing aid .

According to the second aspect of the present invention, since the module has a predetermined shape and not the shape of the ear canal of each wearer, the cost of the module can be reduced, and as a result, the cost of the earphone type hearing aid can be reduced. Can be planned.

According to the invention which concerns on Claim 3 , by providing the through-hole for attachment of a tegs in the side surface of the opening part of a shell, attachment of a teg is easy to do and workability | operativity improves.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is an exploded perspective view of an earphone type hearing aid according to the present invention, FIG. 2 is a perspective view of a lock member, FIG. 3 is a plan view of a module, FIG. 4 is a perspective view of a front panel, and FIG. FIG. 6 is an explanatory view of the engagement relationship between the trimmer lock member and the lock receiving portion.

  As shown in FIG. 1, an earphone type hearing aid 1 according to the present invention includes a shell 2, a module 3 that fits in an opening 2a of the shell 2, a surface panel 4 that covers the module 3, a battery holder 5 that can be opened and closed, and the like. It consists of The shell 2 is made of resin, and a portion inserted into the ear canal is formed in accordance with the shape of the wearer's ear canal. Two hook-shaped lock receiving portions 7 with which the trimmer lock member 6 is engaged are provided inside the opening 2 a of the shell 2. An oval hole 7 a is formed in the lock receiving portion 7. The shell 2 houses an earphone (not shown) that is electrically connected to the module 3.

  As shown in FIG. 2, the trimmer lock member 6 includes a head portion 6a and a foot portion 6b. After the foot portion 6b is inserted into the oval hole 7a of the lock receiving portion 7, the head portion 6a is moved by a screwdriver or the like. When turned, the trimmer lock member 6 engages with the lock receiving portion 7 and enters a locked state. Since the trimmer lock member 6 can be attached and detached only at the inserted position, it is difficult to fall off during wearing. Further, as shown in FIG. 5, the side surface 2 c of the opening 2 a of the shell 2 penetrates to the surface of the shell 2 in order to attach a takeout linear member 8 for taking out the ear type hearing aid 1 from the ear canal. A hole 2b is provided.

  As shown in FIG. 3, the module 3 includes two trimmer lock members 6 that engage with the lock receiving portion 7, a volume 9 that adjusts the degree of amplification, a microphone 10, and the like. In addition, the module 3 is formed with an opening 3 a for accommodating the battery holder 5 and three attachment holes 3 b for attaching the front panel 4. Further, the module 3 is provided with a mounting bar 3c for mounting the battery holder 5 so as to be freely opened and closed. A DSP (Digital Signal Processor) (not shown) is attached to the back surface of the module 3 as a hearing aid processing unit that performs signal processing such as amplification, noise removal, and howling suppression in accordance with the hearing level of the wearer.

  The module 3 does not need to be manufactured according to the shape of the ear canal of the wearer, and it is sufficient to prepare a ready-made module having different parts to be mounted or different arrangement depending on the model.

  As shown in FIG. 4, the front panel 4 is formed with an opening 4 a for opening and closing the battery holder 5, an opening 4 b for projecting the volume 9, and a sound port 4 c for taking sound into the microphone 10. . Further, three attachment pins 4 d for attaching the front panel 4 to the module 3 are provided on the rear surface of the front panel 4 so as to correspond to the attachment holes 3 b of the front panel 4. The battery holder 5 is housed in the shell 2 in a closed state.

  The operation of the earphone type hearing aid 1 according to the present invention configured as described above will be described. In order to assemble the ear hole type hearing aid 1, first, the extraction linear member 8 is passed through the through hole 2b shown in FIG. 5A, and as shown in FIG. The tip 8 (opening 2a side end) 8a is flattened with a heated iron or the like to form a plate. The beads 8b are bonded and fixed to the other tip. When the take-out linear member 8 is pulled out to the bead 8b side, the tip 8a that is flattened into a plate shape comes into contact with the side surface 2c of the opening 2a. Since the through hole 2b is provided in the side surface 2c of the opening 2a of the shell 2, the workability of attaching the linear member 8 for taking out is good.

  Next, the module 3 on which the battery holder 5, DSP, trimmer lock member 6, volume 9, microphone 10 and the like are mounted is fitted into the opening 2 a of the shell 2 as shown in FIG. 6. Then, the foot portions 6b of the two trimmer type lock members 6 are respectively inserted into the oval holes 7a of the lock receiving portion 7, and the outer peripheral edge portion 3d of the module 3 is placed on the lock receiving portion 7. .

  Next, when the heads 6a of the two trimmer lock members 6 are turned from the unlocked state by screwing or the like to the locked state, the foot portions 6b of the trimmer lock member 6 hold the lock receiving portion 7 therebetween. . Then, the module 3 is assembled to the shell 2.

  Since the module 3 is accommodated in the opening 2a of the shell 2, there is no need to finish the outer periphery so as to match the shape of the external auditory canal as in the face plate. In addition, since the module 3 is attached to the shell 2 by the trimmer lock member 6 that does not use an adhesive, the module 3 can be easily attached to and detached from the shell 2. Further, since the opening side end 8a of the linear member 8 for taking out is a thin plate, it is fitted and fixed in the gap between the side surface 2c of the opening 2a and the module 3.

  Further, three mounting pins 4 d provided on the front panel 4 are inserted into mounting holes 3 b formed in the module 3. Then, the front panel 4 is assembled to the module 3 with the module 3 covered. At this time, the battery holder 5 and the volume 9 are in a state of protruding from the openings 4a and 4b so that they can be operated.

  Moreover, since the module 3 is covered with the surface panel 4 by attaching the surface panel 4 to the module 3, even if the shape accuracy of the shell 2 and the module 3 is not so high, the aesthetic appearance of the ear-shaped hearing aid 1 is affected. Never give. In the embodiment of the present invention, the ear-analyzing hearing aid 1 using the shell 2 manufactured according to the shape of the ear canal of the wearer has been described. However, the present invention can also be applied to an ear-analyzing hearing aid using an existing shell. Needless to say.

  According to the present invention, since the module is attached to the shell by a trimmer lock member that does not use an adhesive, the module can be easily attached and detached, and the module does not need to consider the shape of the ear canal of each wearer. Thus, a low-cost ear-shaped hearing aid can be provided.

Exploded perspective view of an earpiece type hearing aid according to the present invention Trimmer lock member perspective view Module top view Front panel perspective view It is explanatory drawing which attaches the linear member for extraction to a shell, (a) is the state before attachment of the linear member for extraction, (b) is the state after attachment of the linear member for extraction Explanatory drawing of engagement relationship between trimmer type lock member and lock receiving part

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Ear hole type hearing aid, 2 ... Shell, 2a ... Opening part, 2b ... Through-hole, 2c ... Side surface, 3 ... Module, 3b ... Mounting hole, 3d ... Outer peripheral edge part, 4 ... Front panel, 4d ... Mounting pin, DESCRIPTION OF SYMBOLS 5 ... Battery holder, 6 ... Trimmer type lock member, 6a ... Head, 6b ... Foot, 7 ... Lock receiving part, 7a ... Oval hole, 8 ... Linear member for taking out, 8a ... Tip (opening side end) Part), 9 ... volume.

Claims (3)

An earphone type hearing aid for attaching a module equipped with an electric circuit, a battery holder, etc. to a shell to be attached to the ear canal of a wearer, wherein the module is provided with a trimmer type lock member, and the lock to which the trimmer type lock member is engaged A receiving portion is formed in the shell, and a surface panel on which an opening for opening and closing the battery holder, an opening for projecting a volume, and a sound port for taking sound into a microphone is attached to the module. Ear hole type hearing aid. 2. The earphone type hearing aid according to claim 1, wherein the module has a predetermined shape. 3. The earphone type hearing aid according to claim 1 or 2 , wherein a through hole is provided that communicates the surface of the shell with the side surface of the opening, and a linear member for taking out the earphone type hearing aid from the ear canal is provided in the through hole. An earphone type hearing aid characterized in that the opening side end of the linear member for extraction is formed into a plate shape.

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