JP3033994U - Bone conduction microphone device - Google Patents

Abstract

(57) [Abstract] [Problem] Ear ears are less likely to hurt even when worn for a long time,
(EN) Provided is a bone conduction microphone device which is hardly detached from an ear canal even when worn while walking or working. SOLUTION: A casing (10) for accommodating a speaker (11) and a bone conduction microphone (12) and partially inserting it into an ear canal, and a metal core curved along the base of an auricle (A). It has a material (5). The cords (3) and (4) connected to the speaker (11) and the bone conduction microphone (12) are arranged along the core material (5).

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a bone conduction microphone device equipped with a bone conduction microphone, and more particularly to a bone conduction microphone device that is easily worn on the ear.

[0002]

[Prior art]

 In recent years, a bone conduction microphone that senses bone conduction and converts it into an electric signal without making a loud voice is often used for people who work in a noisy place.

A bone conduction microphone device equipped with an earphone and a bone conduction microphone is often used for these applications. As a bone conduction microphone device, a type in which a speaker and a bone conduction microphone are housed together in one casing There are two types, an earphone in which only the speaker is housed in a casing and a bone conduction microphone. And as a type that is housed in separate casings, there are one that is used by inserting each into the left and right ear canals, and one that is used by placing the bone conduction microphone on the chin without putting it in the ear canal.

By the way, when an earphone or a bone conduction microphone is attached to an ear canal, it is necessary to hold it in the ear canal. There is also a problem that if it is used while walking or working, it may easily come off from the ear canal due to vibrations or shaking of the cord.

[0005]

[Problems to be solved by the device]

 Therefore, there is a demand for a bone-conduction microphone device that does not easily come off from the ear canal even if it is attached to the ear canal and does not hurt the ear canal.

[0006]

[Means for Solving the Problems]

 The bone conduction microphone device of the present invention has an earphone (1), a bone conduction microphone (2), and a core material (5) curved along the base of the auricle (A). The cord (3) and the bone conduction microphone (2) connected to the are characterized by being arranged along the core material (5).

Alternatively, a casing (10) that houses a speaker (11) and a bone conduction microphone (12) and partially inserts it into an ear canal, and a core material curved along the base of the auricle (A) The cord (3) having (5) and connected to the speaker (11) and the cord (4) connected to the bone conduction microphone (12) are arranged along the core material (5). It is characterized by

Further, in the above, the core material (5) is made of a shape memory alloy.

[0009]

[Embodiment of the invention]

 Hereinafter, the present invention will be described using preferred embodiments. Example 1 FIG. 1 is a diagram showing a bone conduction microphone device of the present example, and FIG. 2 is a diagram showing its use state.

In the figure, (1) is an earphone and (2) is a bone conduction microphone. (3) is a cord for earphones, (4) is a cord for bone conduction microphone, and (7) is a jack for connecting to communication equipment.

(5) is a core material made of copper wire, and has a curve along the base of the auricle. The bone conduction microphone (2) and the earphone cord (3) are arranged along the core material (5) and covered with a heat-shrinkable tube as a covering material (6) over almost the entire length of the core material (5). It forms a hanging part (B).

In use, as shown in FIG. 2, the ear hook (B) is hooked on the base of the auricle (A) and fixed. Then, the earphones (1) are not weighed by the cords (3) and (4) and the bone conduction microphone (2), and the ear canal does not hurt. Also, the earphones (1) are hard to come off even when used while walking or working.

Due to the shape of the core material (5), the bone conduction microphone (2) is pressed slightly to the lower rear of the auricle (A), and the vibration of the skull can be sensed.

Second Embodiment FIG. 3 is a diagram showing a bone conduction microphone device according to the present embodiment. This embodiment is a type in which an earphone and a bone conduction microphone are housed in one casing (10).

FIG. 4 is a cross-sectional view of the casing part. (11) is a speaker, (12) is a bone conduction microphone arranged in an elastic body (16) near the tip of the casing (10), (13) Is a cavity, (15) is a groove, and (14a) and (14b) are through holes that connect the cavity (13) and the groove (15).

With this structure, the sound emitted from the speaker (11) is transmitted to the back of the ear canal through the cavity (13), the through holes (14a) and (14b), and the groove (15). Since this sound is blocked by the elastic body (16) in the casing (10), it is difficult to be transmitted to the bone conduction microphone (12), and as a result, howling is unlikely to occur. Further, the vibration of the bone is transmitted from the ear canal to the bone conduction microphone (12) in the casing (10).

In this embodiment, the cord (3) connected to the speaker (11) and the cord (4) connected to the bone conduction microphone (12) are arranged along the core material (5) and covered. It is covered with the material (6) to form the ear hook (B). Also in this embodiment, since the ear hook (B) is hooked and fixed to the base of the auricle (A) in the same manner as in Embodiment 1, the ear canal does not hurt during use, and it is used while walking or working. It is hard to come off.

In each of the above-described embodiments, the copper wire is used as the core material of the ear hook, but a shape memory alloy may be used so that the core material has a shape that easily fits to the ear due to body temperature.

[0019]

As described above, according to the present invention, it is possible to provide a bone conduction microphone device that is less likely to cause pain in the ear canal even if it is worn for a long time, and does not easily come off from the ear canal even when worn while walking or working.

[Brief description of the drawings]

FIG. 1 is a diagram showing a bone conduction microphone device according to a first embodiment.

FIG. 2 is a diagram showing a usage state of the bone conduction microphone device according to the first embodiment.

FIG. 3 is a diagram showing a bone conduction microphone device according to a second embodiment.

FIG. 4 is a sectional view of a casing portion of the bone conduction microphone device according to the second embodiment.

[Explanation of symbols]

 (1) Earphone (2) Bone conduction microphone (3) Earphone cord (4) Bone conduction microphone cord (5) Core material (6) Cover material (7) Jack (10) Casing containing the earphone and bone conduction microphone (A) Auricle (B) Ear hook of bone conduction microphone device

Claims (3)

[Utility model registration claims] 1. An earphone, a bone-conduction microphone, and a core material curved along the base of the auricle, and the cord and the bone-conduction microphone connected to the earphone are arranged along the core material. A bone conduction microphone device characterized by being. 2. A cord and a bone connected to the speaker, which has a casing that accommodates the speaker and the bone-conduction microphone and is partially inserted into the ear canal and has a core material that is curved along the base of the auricle. The bone conduction microphone device, wherein the cord connected to the conduction microphone is arranged along the core material. 3. The bone conduction microphone device according to claim 1, wherein the core material is made of a shape memory alloy.