JP2009290621A - Headphone, and lateral pressure energizing section - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a headphone that a user can wear with optimal lateral pressure without making wearing of it unstable because of a shape of the head of the user. <P>SOLUTION: The invention relates to a headphone wherein a pair of speaker units 10a and 10b are linked by a headband 2, and near terminal parts 2a and 2b of the headband 2, a stabilizer 4 is mounted which is constituted of a shape memory alloy whose shape is memorized so as to be arcuate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a headphone having a side pressure adjusting function.

  As proposed in the device described in Patent Document 1, a headphone that has been put into practical use is generally provided with a speaker unit inside a housing, and a housing support means such as a headband is provided outside the housing. And the speaker unit is held on the ear. In this headphone, the housing support means includes a plurality of support members made of a rigid body, and an elastic member that is joined to these support members and can elastically bias the housing in the temporal direction.

  Further, as proposed in the invention described in Patent Document 2, a housing that houses a drive unit therein, a hanger that is rotatably connected to the housing, and a slide that is rotatably attached to the hanger. A guide, a slider slidably connected to the slide guide, and a headband to which the slider is attached at both ends, and the headband is made of a shape memory alloy is there. In this headphone, the left and right housings are connected by a headband made of a shape memory alloy.

Japanese Utility Model Publication No. 4-12789 JP-A-6-113385

  In the headphone described in Patent Document 1, the speaker unit can be urged in the temporal direction (ear direction) by the elastic member that is joined to the support member when the user wears the head. However, depending on the head shape of the user (for example, the face width, the size of the head, etc.), there is a problem that the side pressure changes and the wearing becomes unstable or the side pressure is too strong. The side pressure refers to the pressure applied to the temporal region when the headphones are worn.

  Moreover, the headphones described in Patent Document 2 described above are made of a shape memory alloy. The headband made of this shape memory alloy can urge the left and right housings in the temporal direction. However, depending on the head shape of the user (for example, the face width, the size of the head, etc.), there is a problem that the side pressure changes and the wearing becomes unstable or the side pressure is too strong.

  The present invention has been made in view of the circumstances described above, and is intended to solve the above-described problems as an example, and to provide a headphone that can solve these problems. Objective.

  In order to solve the above-described problem, the headphone according to claim 1 is a headphone in which a pair of speaker units are connected with a headband so as to form an arc shape at or near both ends of the headband. A stabilizer made of a shape memory alloy whose shape is memorized is mounted.

  FIG. 1 is a perspective view showing an example of a headphone according to an embodiment of the present invention, FIG. 2 is a perspective view showing an example of a stabilizer shown in FIG. 1, and FIG. 3 is a diagram showing a state in which the stabilizer shown in FIG. FIG. 4 is a cross-sectional view showing an example of a stabilizer locking structure shown in FIG. 1.

  As shown in FIG. 1, the headphone 1 according to the present invention includes a pair of speaker units 10 a and 10 b at both ends of an arc-shaped headband 2. The speaker units 10a and 10b include housings 11a and 11b, small speakers (not shown), and pads 13a and 13b. Here, the stabilizer 4 mentioned later is demonstrated as a front surface, and the housings 11a and 11b are demonstrated as a lower surface.

  The housings 11a and 11b constituting the speaker units 10a and 10b are substantially dish-shaped, and small speakers are accommodated in the housings 11a and 11b. Further, end portions of the respective housings 11a and 11b are provided with connecting members 12a and 12b, and the respective housings 11a and 11b are connected to both ends of a headband 2 to be described later via the connecting members 12a and 12b. Has been. Furthermore, pads 13a and 13b are attached to the sound emitting surface of the housing 11a and 11b on the side of the user. For the pads 13a and 13b, a material made of, for example, low-resilience urethane having a cushioning property is used in order to enhance the fit when contacting the ear.

  Also, an input cord 14 connected to a headphone connection terminal of an audio device (for example, a CD player or a DVD player) is attached from the end of one housing 11b. And the audio | voice signal output from the audio equipment is input into the small speaker in the housing 11b via the input cord 14. FIG. The audio output output to the input code is input to a small speaker in the other housing 11a via a signal line (not shown) penetrating the headband 2.

  The headband 2 is provided with a band 3 in contact with the top of the head on the inner peripheral side that is the top of the user. The band 3 is connected to the end portions 2a and 2b of the headband 2 by a connecting belt made of a stretchable material, for example, made of synthetic resin. Further, a stabilizer 4 is mounted in the vicinity of the end portions 2a and 2b of the headband 2. Locking portions 2c and 2d (see FIGS. 3 and 4), which will be described later, are provided in the vicinity of the end portions 2a and 2b of the headband 2, and the stabilizer 4 is provided by the locking portions 2c and 2d. It is detachably supported on the outer peripheral side of the band 3 and on the front side of the headband 2.

  As shown in FIG. 1 or FIG. 2, the stabilizer 4 has a substantially arc shape, and includes an arm portion 4a and joint portions 4b and 4c attached to both ends of the arm portion 4a. The arm portion 4a is formed of a shape memory alloy having a restoring load characteristic, such as a nickel-titanium alloy.

  Specifically, the arm portion 4a of the stabilizer 4 is a wire having a circular or rectangular cross-sectional shape made of the shape memory alloy. For example, the transformation temperature to the superelastic state that returns to the original state is 5 degrees Celsius. It is set and manufactured in a substantially arc shape. When the shape is memorized at a low temperature as described above, the stabilizer 4 has a characteristic of a restoring load that attempts to return to a substantially arc shape at the time of molding at a temperature of 5 degrees Celsius or higher.

  The stabilizer 4 manufactures a plurality of patterns having different restoration loads and a plurality of patterns having different sizes and shapes in advance. When the headphones 1 are sold, several patterns of stabilizers 4 are selected and sold. Thereby, the user of the headphones 1 can change the lateral pressure applied to the user's temporal region by selecting his / her favorite stabilizer 4 and replacing the stabilizer 4.

  Further, the stabilizer 4 is provided with a coating layer of a color color (for example, red, green, purple) for identifying the plurality of patterns on the surface portion thereof. The color coating layer provided on the stabilizer 4 indicates side pressure identification information that enables identification of the stabilizer 4 having different side pressures and shape identification information that enables identification of the stabilizer 4 having different sizes and shapes.

  Next, the locking structure of the stabilizer 4 will be described. As shown in FIGS. 3 and 4, the locking portions 2c and 2d are formed in a substantially convex shape. A bonded magnet 2e having a strong magnetic force, for example, including rare earth magnet powder, is integrally formed at the tip.

On the other hand, the joint portions 4b and 4c of the stabilizer 4 are formed in a substantially concave shape so as to be fitted to the locking portions 2c and 2d. The lower surfaces of the joint portions 4b and 4c are made of a magnetic material made of, for example, an iron alloy that can be magnetically attached to the bond magnet 2e provided on the locking portions 2c and 2d. As a result, when the joint portions 4b and 4c of the stabilizer 4 are fitted in alignment with the locking portions 2c and 2d, the stabilizer 4 is detachably supported by the headband 2 by the magnetic force of the bond magnet 2e.
Therefore, using the characteristics of the shape memory alloy, a plurality of stabilizers 4 having different restoring loads can be prepared, and the side pressure can be easily changed by replacing the stabilizers 4. At this time, the arm portion 4b of the stabilizer 4 includes a color-colored coating layer, so that the stabilizers 4 having different sizes and side pressures can be identified by color.

As described above, the headphone 1 according to the embodiment of the present invention described in detail is a headphone in which a pair of speaker units 10a and 10b are connected by the headband 2, and an arc is formed in the vicinity of the ends 2a and 2b of the headband 2. A stabilizer 4 made of a shape memory alloy having a shape memorized therein is mounted.
Thereby, it becomes possible to comprise without providing the special mechanism for changing a side pressure, and it can aim at the improvement of an external appearance, and the improvement of commercial value.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like within a scope not departing from the gist of the present invention are possible. Even if it exists, it is included in this invention.
For example, in the above-described embodiment, the example of the configuration in which the stabilizer 4 is detachably supported by the bond magnet 2e integrally formed with the locking portions 2c and 2d is shown, but the present invention is not limited thereto, and the stabilizer is provided by a screw member. 4 may be screwed together, or the joint portions 4b and 4c may be fitted with the engaging portions 2c and 2d formed in an uneven shape.

It is a perspective view which shows an example of the headphones which concern on embodiment of this invention. It is a perspective view which shows an example of the stabilizer shown in FIG. It is the perspective view which showed the positional relationship at the time of mounting | wearing the headband with the stabilizer shown in FIG. It is sectional drawing which shows an example of the latching structure of the stabilizer shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Headphone, 2 ... Headband, 2c, 2d ... Locking part, 2e ... Bond magnet, 3 ... Band, 4 ... Stabilizer, 4b, 4c ... Joint part, 10a, 10b ... Speaker unit, 11a, 11b ... Housing, 12a, 12b ... connecting member, 13a, 13b ... pad, 14 ... input code

Claims (6)

  A headphone in which a pair of speaker units are connected by a headband, and a stabilizer made of a shape memory alloy having a shape memorized in an arc shape is mounted at or near both ends of the headband. Headphones characterized by being.   The headphone according to claim 1, wherein the stabilizer made of the shape memory alloy is detachably attached to both ends of the headband or in the vicinity of both ends.   The headphone according to claim 1, wherein the stabilizer made of the shape memory alloy has shape identification information for identifying the arc-shaped characteristic pattern on a surface portion thereof.   The headphone according to claim 1, wherein the stabilizer made of the shape memory alloy has side pressure identification information for identifying a characteristic pattern of a shape memory restoration load on a surface portion thereof.   The headphone according to claim 3, wherein the shape identification information includes a coating layer of a predetermined color.   The headphone according to claim 4, wherein the side pressure identification information includes a coating layer of a predetermined color.

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