JPS5921377Y2 - glasses hearing aid - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hearing aid constructed using the temples of eyeglasses or the like.

Among conventional hearing aids, air conduction type hearing aids that use earphones have drawbacks such as being cumbersome to wear and easy to be noticed by others.

Bone conduction type hearing aids, on the other hand, do not require earphones and are easy to wear because they have functional parts built into the temple.
It has the advantage that it can be used naturally.

However, bone conduction type hearing aids have functional components such as a microphone, amplification circuit, power supply, and vibrator built into the limited space of the temple, so they have the disadvantage that the glasses as a whole become larger and heavier.

In addition, since it is necessary to incorporate conflicting functional parts such as a microphone and a vibrator that generates vibrations into the same temple, the microphone and the vibrator are held by an elastic body. Since the periphery is surrounded by the cushioning material B and built into the temple C, it is susceptible to vibrations from the vibrator or external vibrations, and furthermore, it is not possible to obtain satisfactory performance in terms of assembly, adjustment, and reliability.

The present invention eliminates the above-mentioned drawbacks, and specifically, when holding a microphone inside a temple, the vibrator is suspended in the space inside the temple via an elastic body engaged with both ends of the microphone. This structure is designed to block vibrations from external sources and external vibrations, and at the same time, to strengthen the temple part, make it smaller, and simplify assembly.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 shows the overall configuration of a bone conduction type spectacle hearing aid.

1 is the temple, which has a built-in microphone, vibrator, etc.

2 is a contact body that transmits the sound vibration of the vibrator to the bone tissue of the head;
3 is the lens and frame of the glasses, which are connected to the temple 1 through the hinge 4.
connected to.

FIG. 3 shows a schematic structure inside the temple.

Reference numeral 5 indicates a main body frame of the temple, and reference numeral 6 indicates a suspension unit for a microphone, the detailed configuration of which will be described later in conjunction with FIGS. 4 to 6.

7 is a volume for adjusting the volume, 8 is a switch for opening and closing the power supply, 9 is a circuit board on which a chip 10 such as an IC1 resistor forming an amplifier circuit is attached, and 11 is a battery for power supply, which is installed in the main body frame 5. The battery can be replaced by inserting it into a rotatable battery case 13 through the pin 12.

14 is a vibrator attached to the main body frame 5 via a metal fitting 15 and an elastic body 16.

FIGS. 4 to 6 show the housing portion of the microphone.

The microphone 17 is fixed to a substrate 18 whose both ends are bent at right angles, and the bent portion of the substrate 18 has a groove 20 in the center thereof into which an elastic body 19 for suspending the microphone can be inserted.

Further, a plate member 21 is fixed to the surface of the substrate 18 opposite to the surface on which the microphone 17 is attached, for maintaining the balance with the microphone 17 and lowering the vibration frequency of the microphone 17.

The reinforcing frame 22 is a plate material with the central part cut out so as to surround the microphone 17. In order to provide strength against bending in the longitudinal direction of the temple, both ends in the direction perpendicular to the longitudinal direction of the temple are bent, and the central part is bent. The cut out portion of the substrate 18 is bent at a position corresponding to the groove 20, and similarly has a groove 23 into which the elastic body 19 is inserted.

The H-shaped elastic bodies 19 are slightly stretched and attached to the grooves 23 of the reinforcing frame 22 and the grooves 20 of the substrate 18, respectively, and the hooks 24 are glued, so that the elastic bodies 19 are attached to the reinforcing frame 22.
An integrated microphone 17 is obtained.

The microphone 17 has two sleeves 25 that ensure the introduction of sound.

A reinforcing frame 22 can be attached to the main body frame 5, has a gap 26 with respect to the microphone 17 and the substrate 18, and has a sound hole 27 communicating with the outside at a position corresponding to the sleeve 25.
A recess 28 is formed.

By attaching the integrated microphone 17 and reinforcing frame 22 to this recess 28 and closing the lid 30 which also has a recess 29 at the position corresponding to the microphone 17, the microphone 17 held by the elastic body can be easily removed. can be fixed to the microphone 17, main body frame 5 and lid 3.
A state with a gap of 26.31 between 0 and 0 is obtained.

A member 32 protects the sound hole 27 provided in the main body frame 5, and has a slit 33 communicating with the outside at a position corresponding to the sound hole 27.

By incorporating the reinforcing frame 22 into the temple in this manner, the strength of the temple can be increased.

In other words, the main body frame 5 and the lid can be made thinner.

Furthermore, by suspending the microphone 17 in the space within the temple, vibrations can be blocked even if the gaps between the microphone 17, the main body frame 5, and the lid 30 are reduced, and the temple portion can be made smaller.

Furthermore, by unitizing the suspension of the microphone 17, it becomes easy to check the characteristics of the microphone 17 before assembling it in the temple, or to perform maintenance and replacement.

FIG. 7 shows another embodiment of the present invention, in which the positional relationship between the microphone 34, the board 35, and the reinforcing frame 36 is the same as that in the embodiment shown in FIG. In this structure, a microphone 34 is suspended via a ring-shaped elastic body 37.

For example, an O-ring can be used as the ring-shaped elastic body 37, and the shapes of the bent portion 38 of the substrate 35 and the bent portion 39 of the reinforcing frame 36 can also be simplified.

Furthermore, since each microphone 34 is held by two elastic bodies, the suspension of the microphone 34 becomes more stable.

As is clear from the above explanation, by suspending the microphone in the space inside the temple via an elastic body, it is possible to efficiently block vibrations from the vibrator or external vibrations, thereby reducing microphone noise. , is effective in preventing howling.

Further, since there is no need for a cushioning material in the gap between the microphone and the temple other than the portion that engages with the elastic body, it is possible to reduce the size to minute dimensions, and the temple portion can be miniaturized.

Furthermore, by suspending the microphone on a reinforcing frame made of members and incorporating it into the temple, the temple portion can be further downsized and reinforced.

Further, by unitizing the microphone in this way, it becomes easy to check the characteristics of the microphone in the detailed assembly peculiar to spectacle-type hearing aids or in a suspended state before being assembled into a temple.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional spectacle-type hearing aid, FIG. 2 is a plan view of a spectacle-type hearing aid according to an embodiment of the present invention, FIG. 3 is a front cross-sectional view showing the schematic structure of the inside of the temple, and FIG. 4 5 is a front view of the same, FIG. 6 is a side sectional view of the same, and FIG. 7 is a front view of another embodiment. 1...Temple, 17...Microphone, 19...Elastic body.

Claims (3)

[Scope of utility model registration request] (1) A spectacle-type hearing aid characterized in that a space for housing a microphone is provided in the temple of the spectacles, and the microphone is suspended within the space in the direction of mutual attraction by at least two elastic bodies with the microphone centered. (2) A member formed to surround a microphone is provided in a space provided in the temple, and the microphone is suspended from this member via an elastic body.Claim 1 of the Utility Model Registration Claims Spectacle-type hearing aids as described. (3) The reinforcing member is made of a plate material, and the strength of the reinforcing member is maintained and the size thereof is reduced by bending the end portion in the direction perpendicular to the longitudinal direction of the temple. Glass hearing aid.