JPH0937396A - Structure of sound collection type hearing aid variable in lead-in angle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive sound collection type hearing aid corresponding to the degree of hearing difficulty and capable of eliminating the necessity of a loudspeaker type hearing aid using an amplifier by using leading plates capable of changing the incident angle of a sound wave and controlling audible sound volume. SOLUTION: Right and left ear lead-in plates 2', 2 are held by right and left ear holding tools 1', 1 through right and left holding tool hinges 3', 3. These tools 1', 1 are mutually connected by a right and left holding tool coupler 4. The plates 2', 2 can variably set up respective open angles in a sound wave entering direction through the hinges 3', 3. Thereby the external auditory meatus characteristics of conchae and auditory tubes having a wide band resonator function can be effectively reinforced and the loss rate of audible sound volume can be controlled to a minimum level. Thus the open angles of the lead-in plates 2', 2 can be optionally adjusted in accordance with the degree of hearing difficulty and an application environment. Consequently an inexpensive sound collection type hearing aid capable of releasing a user from a sense of weight or a sense of fatigue generated at the time of using a loundspeaker type hearing aid constituted of a microphone, earphones and an amplifier can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a sound-collecting type hearing aid that is optimal for collecting sound by varying the sound wave loss rate by changing the angle of incidence of sound waves, and selecting the sound sound collection ratio according to the degree of hearing loss. It is about.

[0002]

2. Description of the Related Art In a hearing aid, a method for correcting hearing loss is performed in terms of a sound pressure ratio called volume, that is, a relationship between voltage and power. Only narrow in-frequency processing is performed in relation to the price and frequency of the amplifier. Further, since the earphone is inserted into the ear canal to introduce the ear canal sound wave, the factors related to the characteristics of the ear canal functioning as a broadband resonator and the propagation relationship between the auricle and the ear canal are narrowed.

[0003]

Among the methods described in the prior art, in the method for correcting deafness in the relationship between the microphone and the earphone described above, a very small amplifier is used. In order to drive, a battery is required as a power source, and there is a restriction on weight reduction, therefore,
There is a problem that the feeling of use of the user is biased and the feeling of fatigue increases.

Further, since an amplifier is used, it is necessary to improve the accuracy and reliability of the electronic parts and to change the digitalization of the system in order to reduce the secular change of the electronic parts that are configured. However, there is a problem in that the structure is too large and the structure is too expensive.

Further, in the part described later, because the method of inserting the earphone into the ear canal and introducing the ear canal sound wave, the factors related to the characteristics of the ear canal functioning as a broadband resonator, the relationship between the auricle and the ear canal, are narrowed. There was a problem that the recovery function was further weakened.

In view of the above technical problems, the present invention effectively relates the ear canal characteristics having a function as a wide band resonator without using a battery, a microphone, an amplifier, an earphone, etc. as a power source. An object of the present invention is to provide a sound-collecting hearing aid that collects sound by using an introduction plate that changes the angle of incidence of sound waves so as to reinforce the relationship between the auricle and the ear canal.

[0007]

In order to achieve the above-mentioned object, a sound collecting method according to the present invention comprises a fixed or openable / closable introduction plate in a part of a structure of an ear hook. The feature is that it collects sound by setting an opening angle with respect to the approach direction. In the device according to the present invention, as a method of changing the sound volume, the amount of sound waves introduced from the auricle to the ear canal can be changed by changing the open set angle of the introduction plate provided in the structure of the ear hook. Is also changed, and it is possible to introduce the high frequency component contained in the eigentone that is audible as the loudness of the sound in nature without impairing it.

[0008]

The method of varying the approach angle of the sound wave is carried out by the holding tool 1 and the introduction plate 2 and 2'incorporated in the 1 '. The holders 1 and 1'may be provided with the serial numbers 3 and 3'to change the set angle of the introduction plate, or the set angles 3 and 3'from the average value of the introduction angles. It may be fixed without using a number, but the volume of sound introduced by using both sides is larger than using by using one side like a loudspeaker type hearing aid that uses a microphone, amplifier, and earphone. ,It is valid.

[0009]

An embodiment will be described with reference to the drawings. In FIG. 1, the holder 1 is for the left ear and 1'is for the right ear. It is possible to determine the introduction setting angle by holding the introduction plates 2 and 2'using the book numbers 3 and 3 '. When the introduction angle is fixed, it is not necessary to have book numbers 3 and 3 '. The connector of No. 4 connects the left ear and the right ear.

Since the present invention is configured as described above, it has the following effects.

In the method of the first aspect, it is possible to provide a low-priced sound collection type hearing aid by setting the fixed introduction plate.

In the method of claim 2, the introduction setting angle can be changed, so that the degree of hearing loss and the environment of use can
The introduction angle can be freely adjusted.

[Brief description of drawings]

FIG. 1 is a plan view of a sound-collecting type hearing aid having a variable introduction angle.

[Explanation of symbols]

 1 Left ear holder 1'Right ear holder 2 Left ear introduction plate 2'Right ear introduction plate 3 Left holder booklet 3'Right holder booklet 4 Left and right holder connector

Claims (2)

[Claims] 1. A hearing aid of a hearing-aid type having a structure for controlling an audible volume by varying an approach angle of a sound wave. 2. The sound-collecting hearing aid according to claim 1, which has a structure having an introduction plate that allows the introduction setting angle to be used in a variable state.