JP2010016792A5

JP2010016792A5 -

Info

Publication number: JP2010016792A5
Application number: JP2008302845A
Authority: JP
Filing date: 2008-11-27
Publication date: 2012-01-26
Anticipated expiration: 2028-11-27

Description

上記課題を解決するために、本発明のある態様のイヤホンは、外耳道に少なくとも一部が挿入される挿入部と、外耳道の想定挿入位置まで挿入部の少なくとも一部が挿入されたときに外耳道に包含されると共に、供給された電気信号に応じた音声を出力する音声出力部と、を備える。挿入部は、音声出力部の外面のうち音声が出力される音声出力面の裏面に接する空隙部有するよう設けられ、空隙部は、外耳道の想定挿入位置まで挿入部の少なくとも一部が挿入されたときに、少なくとも一部が外耳道に包含されるよう形成される。 In order to solve the above-described problems, an earphone according to an aspect of the present invention includes an insertion portion in which at least a part is inserted into the ear canal , and an ear canal when at least a portion of the insertion portion is inserted up to an assumed insertion position of the ear canal . with the hull including, and an audio output unit for outputting sound corresponding to the supplied electric signal. The insertion portion is provided so as to have a gap portion in contact with the back surface of the sound output surface from which sound is output out of the outer surface of the sound output portion, and at least a part of the insertion portion is inserted to the assumed insertion position of the ear canal Sometimes it is formed to be at least partially contained in the ear canal.

Claims

An insertion part at least partially inserted into the ear canal,
With at least a portion of the insertion portion to assume the insertion position of the ear canal is wrapped including the ear canal when inserted, and an audio output unit for outputting sound corresponding to the supplied electric signal,
The earphone has an air gap that is in contact with a back surface of a sound output surface from which sound is output out of an outer surface of the sound output portion.

2. The earphone according to claim 1, wherein the gap is provided so that at least a part of the gap is included in the ear canal when the insertion part is inserted up to an assumed insertion position of the ear canal.

The audio output unit outputs vibration sound of a diaphragm driven by an electrical signal supplied to the voice coil into the ear canal when at least a part of the insertion unit is inserted up to an assumed insertion position of the ear canal. The sound pressure from the eardrum to the diaphragm along the external auditory canal is the maximum sound pressure that can be output and the sound pressure that is higher than the appropriate sound pressure that can be perceived appropriately by the user. The earphone according to claim 1, wherein the earphone is attached to the insertion portion so as to have a distance transmitted to the eardrum.

The audio output unit is attached to the insertion unit such that when at least a part of the insertion unit is inserted up to the assumed insertion position of the ear canal, the distance from the opening of the ear canal to the diaphragm is 3 mm or more. The earphone according to claim 3, wherein:

An insertion restricting portion that abuts against a portion of the auricle and restricts insertion of the insertion portion into the heel from the assumed insertion position when at least a portion of the insertion portion is inserted to the assumed insertion position of the ear canal; ,
5. The insertion restriction portion extends at an angle with respect to a plane perpendicular to an insertion direction when at least a part of the insertion portion is inserted into the ear canal. Earphones.

The insertion restricting portion has a width in a direction orthogonal to both the extending direction of the insertion restricting portion and the insertion direction when the inserting portion is inserted into the ear canal substantially the same as the width of the inserting portion in the direction. The earphone according to claim 5, wherein:

A unit holder for accommodating the audio output unit and attaching to the insertion unit;
The earphone according to claim 1, wherein the unit holder is made of metal.

The insertion portion includes a cylindrical portion formed in a cylindrical shape,
The earphone according to any one of claims 1 to 7, wherein the gap portion is defined by an end portion of the cylindrical portion having an opening portion coming into contact with the back surface of the audio output portion.

The earphone according to any one of claims 1 to 8, wherein the audio output unit is entirely included in the ear canal when at least a part of the insertion unit is inserted to an assumed insertion position of the ear canal.