JPH071918Y2 - Headphone device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a headphone device, and more particularly to a headband mechanism for mounting the headphone device on a head.

B. Overview of the device The headphone device according to the present invention is elastically urged to the head by the elastic force of the headband, and the belt-shaped suspender moves along the head against the tensile force of the elastic member. The height position of the headphone unit attached to the headband can be automatically adjusted by winding it around and pressing and supporting the head.

C. Conventional technology Headphones are required to support the headphone unit at an optimum position with respect to the ear for the purpose of obtaining optimum acoustic effects. Therefore, conventionally, various proposals have been made to provide an adjusting mechanism capable of freely adjusting the supporting position of the headphone unit according to the size of the user's head and the position of the ear. Kosho 54-10258
There is one as shown in Japanese Patent Publication.

D. Problems to be Solved by the Invention However, a headphone having a position adjusting mechanism of a headphone unit as disclosed in the above publication does not allow the user's ear to move when fixed to the head or by moving a slider member or the like in advance. It has to be adjusted so that the headphone unit fits in the position of, and the handling is troublesome.

In addition, unless it is applied to the head with a constant pressing force to cover both ears, good acoustic characteristics may not be obtained, and problems such as long-time wearing and wearing may occur. .

Therefore, the present invention has been made in view of the above problems, and even if there is individual difference in the distance from the apex of the head of the user to the ear, the pressing force against the ear of the headphone unit does not change, and A uniform pressing force is applied to the head over the entire width of the head between both ears to provide a comfortable fit.
An object of the present invention is to provide a headphone device capable of automatically performing a position adjustment operation on the ear of the headphone unit.

E. Means for Solving the Problems In order to achieve the above-mentioned object, the present invention comprises a headband formed of an elastic body and having an inverted U shape, with headphone units attached to the ends of both ends, and elastic members at both ends. It is pulled and urged to be housed in the headband, and the midway part consists of a band-shaped suspender hung inward at both ends of the headband. In addition to being urged, the belt-shaped body suspenders are wound around the head against the tensile force of the elastic member to press and support the head.

F. Action The present invention is designed so that when the head suspension is attached to the head, the belt-shaped suspender pulls out the headband from the inside of the headband against the elastic member and winds it along the head shape. While supporting by pressing force, the mounting position of the headphone unit is automatically positioned.

C. Embodiment Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

The headphone device according to the present invention, as shown in FIGS. 1 and 2, has two ends of a headband 1 formed in an inverted U shape.
A headphone unit 4 is rotatably arranged via a support member 2 and a support arm 3.

The headband 1 is made of carbon fiber reinforced plastic (CF
RP), in which a plate body having a spring property is formed in an inverted U shape. The reason why the headband 1 needs to be springy in this way is that the headphone units 4 mounted on both sides of the headband 1 are pressed against the ears with a certain lateral pressure when the headband 1 is worn on the head. Also, headband 1
The use of carbon fiber reinforced plastic as a material for
This is for the purpose of damping the acoustic vibration, preventing the acoustic vibration of the one headphone unit 4 from interfering with the other headphone unit 4, and reducing the weight.

The headband 1 is formed in a generally U-shaped cross section that is flat toward the inside, and the opening side is closed by a lid body 6.
A void portion 7 is provided in the headband 1. Then, a spring member 9 in which both ends of a suspender 8 formed in a belt-like body, which will be described later, are connected is housed in the void portion 7.

Further, the headband 1 has support members 2, 2 attached to both ends thereof. This support member 2 is a support shaft 10 and a support arm 3
Is rotatably supported to support the headphone unit 4 attached to the support arm 3. The supporting member 2 is made of a magnesium alloy for the purpose of reducing the weight and attenuating the acoustic vibration transmitted from the supporting headphone unit 4.

Like the headband 1, the support member 2 includes an exterior portion 12 and an inner plate 13 so that a void portion 11 is provided inside. The inner plate 13 is provided with an opening 14.

For the headband 1 configured as described above, the first
As shown in the figure, the suspenders 8 are attached. That is, both ends of the suspender 8 are drawn into the headband 1 through the openings 14, 14 of the support members 2, 2 attached to both sides of the headband 1 and connected to the spring member 9, respectively. The midway part is hung as a head support part 15 so as to form a string inwardly with respect to the headband 1.

As shown in FIG. 3, the suspender 8 is constantly urged by the spring member 9 with a certain tension in the direction in which the head supporting portion 15 of the suspender 8 is pulled into the headband 1 from both ends. . On the other hand, by pulling out the suspender 8 against the biasing force of the spring member 9, the head support portion 15 of the suspender 8 can be pulled out and extended.

The suspender 8 is a flexible belt-like body, and it is preferable to use a material that does not expand and contract in the length direction but expands and contracts to some extent in the width direction and conforms to the head.

The spring member 9 constantly pulls and urges the suspender 8 in a direction to be housed in the headband 1, and applies a constant tension to the suspender 8 that is pulled out when the headphone device is mounted on the head. It is for doing. The spring member 9 is the suspender 8 described above.
In order to apply the same tensile force to both ends of the headband 1, the central portion thereof is fixedly supported inside the apex of the headband 1.

In the headphone device configured as described above, the suspender 8 is wound around the head as shown in FIG. 4 when the headphone device is worn on the head of the user. It is for supporting the section. That is, when the headband 1 is worn on the head of the user, the headband 1 is pushed out and the head-supporting portion 15 of the suspender 8 resists the pulling force of the spring member 9 inside the headband 1. Pull out from the suspenders 8
Wraps around the head according to the shape of the head to press and support the head.

By thus supporting the head with the suspender 1 of which the length can be changed, the constant distance from the headband 1 is always maintained without being influenced by the individual difference in the distance from the apex of the user's head to the ear. It can be pressed and supported with the tension.
Further, the suspenders 8 can contact the head over the entire width of the head between the ears with a uniform pressing force. Further, at this time, the length itself of the headband 1 is not variable, so that the lateral pressure of the headband 1 with respect to the ear of the headphone unit 4 can be always constant, and a good wearing feeling can be obtained. .

The suspender 8 is automatically pulled out when the headphone device is worn on the head to automatically adjust the height position of the headphone unit 4. It is not necessary to adjust the height position of the headphone unit every time, and operability can be improved.

In this embodiment, the spring member 9 shown in FIG.
A spring member 20 was used in which a plurality of folded-back portions 21 formed by folding a wire rod made of a shape memory alloy as shown in B in a rectangular shape were alternately arranged in parallel. The shape memory alloy spring member 20 has a characteristic of having a superelastic region in which the loads are substantially the same when the displacement amount is a certain amount or more. Therefore, if the characteristics of this shape memory alloy in the superelastic region are used, when the suspenders 8 are pulled out, the tension for pulling back the suspenders 8 is always approximately the same in the superelastic regions, and the tension is applied to the head with a constant tension. It becomes wound and can support the head. Also, the shape memory alloy spring material 20 is
Since the spring member 20 is always returned to the initial state, the spring member 20 is not stretched due to settling, and the suspender 8 is not loosened. Therefore, when the headphone device is detached from the head, the suspender 8 is automatically wound up in the headband 1 to return to the initial state, and it is possible to always maintain the tensioned state.

Furthermore, by forming the folded portion 21 of the shape memory alloy into a rectangular shape, the hysteresis as the spring member 20 can be reduced, and the tension can be made uniform during pulling out and returning.

In this embodiment, the spring member 20 made of a shape memory alloy is used as the spring member 9 for the above purpose, but the spring member 9 is not limited to this, and the suspender 8 may be pulled and biased. Needless to say, an elastic member such as a rubber material may be used as long as it can achieve this.

Further, although the head supporting portion 15 of the suspender 8 is formed in a mere linear band shape in the above-described embodiment, as shown in FIG. Head support 31 provided with an opening 32 to make it familiar
The suspender 30 having By doing so, the suspender 30 can press and support the head more evenly by the head supporting portion 31, and further, the wearing feeling of the headphone device can be improved. Needless to say, a plurality of openings 32 may be provided in the wide head supporting portion 31 as shown in FIG.

In addition, the suspender 30 with the above-described wide head supporting portion 31
The conventional headphone device is not limited to the present invention.
It can also be used for 40. That is, to explain the application example with reference to FIG. 8, the headphone units 43 are attached to both ends of the headband 41, and the sliders 44 for adjusting the mounting height position of the suspenders 42 are provided. Then, a suspender 42 having a wide head support portion 45 is detachably attached to the slider 44. In this way, the conventional user manually operates the headband 41
The headphone device 40 of the type that adjusts the mounting height position of the headphone unit 43 with respect to can also use the suspender having the wide head supporting portion, and the stability of head supporting can be improved.

H. Effect of the Invention According to the present invention, the head suspender is pulled out of the headband against the elastic member by the head when it is mounted on the head, and is wound along the head shape. While supporting the part with a constant pressing force, the positioning of the wearing position of the headphone unit is automatically performed, so that it is not affected by the individual difference in the distance from the apex of the user's head to the ear,
It is possible to obtain a good feeling of wearing with constant tension.

Further, according to the present invention, the height position of the headphone unit is automatically adjusted when the headphone device is worn on the head. Therefore, as in the conventional headphone device, the height position of the headphone unit is different for each user. It is possible to improve operability without the need to adjust.

[Brief description of drawings]

FIG. 1 is a perspective view of a headphone device according to the present invention,
FIG. 2 is a partially exploded perspective view thereof. 3 and 4 are front views in which the headband portion of the headphone device according to the present invention is cut, FIG. 3 showing before head wearing, and FIG. 4 showing head wearing. 5A and 5B are plan views of the spring material used in the present invention. FIG. 5A shows a normal state and FIG. 5B shows a stretched state. Further, FIG. 6 is a perspective view of a headphone device according to the present invention in which a modified example is used for the head supporting portion of the suspender.
FIG. 7 is a perspective view of a suspender showing still another modified example. FIG. 8 is a perspective view showing an application example in which the suspender of the above modification is used in another headphone device. 1 ... Headband 2 ... Support member 8 ... Suspender 9 ... Spring member 14 ... Opening

Claims (1)

[Scope of utility model registration request] 1. A headband which is made of an elastic body and is formed in an inverted U shape and has headphone units attached to the ends of both ends, and both ends are pulled and urged by elastic members to be housed in the headband. The midway portion is composed of a belt-shaped body suspender hung inward at both ends of the headband, and is elastically urged to the head by the elastic force of the headband, and the belt-shaped body suspender is attached to the elastic member. A headphone device characterized in that the head device is wound around the head against a tensile force to press and support the head.