JP2007028375A - Headphone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a headphone with the less number of components allowing a reduction in the assembling man-hours and the material cost. <P>SOLUTION: The headphone includes: a first fixed part 111 provided to one of a head band 59 and a housing 53 and fixing a cord 221; a second fixed part 161 provided to the other and fixing the cord 221; a first guide 201 provided at a part of a side provided with the second fixed part 161 and apart from a straight line passing through the first fixed part 111 and in parallel with a slide direction of the housing 53, with which a circumferential face of the cord 221 between the first and second fixed parts 111, 161 is pressed into contact and deforming the cord 221 such that the side of the first fixed part 111 is deformed to be nearly a convex U shape when he housing 53 approaches the head band 59; and a second guide 211 provided at a side provided with the second fixed part 161 and guiding the cord 221 in a direction along with the first guide 201. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes a first housing that contacts one ear, a second housing that contacts the other ear, the first housing on one end side, and the second housing on the other end side. A headband to which the first housing is attached, a cord provided along the headband for connecting the first housing side device and the second housing side device, and a longitudinal direction of the headband And a slide mechanism that moves at least one of the first housing and the second housing toward and away from an end of the headband.

  As an example of a conventional headphone, there is a headphone as shown in FIG. As shown in the figure, a speaker 1 is provided in a first housing 3 that comes into contact with one ear of a headphone wearer. A speaker 5 is provided in the second housing 7 that contacts the other ear of the headphone wearer. The first housing 3 and the second housing 7 are attached to the end of the headband 9 that is worn from the top of the wearer to the ear.

  Further, a cord 11 is provided along the headband 9 to connect the device on the first housing 3 side and the device on the second housing 7 side. Such shaped headphones are called overhead headphones.

  In such a headphone, the first housing 3 and the second housing 7 can be approached / separated with respect to the end of the headband 9 along the longitudinal direction of the headband 9, and at a desired position, A slide mechanism for holding the position is provided. 7A shows a state in which the first housing 3 and the second housing 7 are separated from the end of the headband 9, and FIG. 7B shows the first housing 3 and the second housing 7. Shows a state of being close to the end of the headband 9.

  In the headphones having such a configuration, the cord 11 sags when the first housing 3 and the second housing 7 are close to the end of the headband 9. In the headphones having a structure in which the slack of the cord 11 is generated in the first housing 3 and the second housing 7, the cord 11 is in the first housing 3 and the second housing 7 in the first housing 3 and the second housing 7. There is a risk of entanglement with equipment in the housing 7.

Therefore, in order to prevent the cord 11 from being entangled with the devices in the first housing 3 and the second housing 7 in the first housing 3 and the second housing 7, the first housing 3 and the second housing 7 A concave portion in which the cord 11 that sags is accommodated is formed in the housing 7, and the opening of the concave portion is closed with a lid to prevent the cord 11 from being entangled with the device (see, for example, Patent Document 1).
Japanese Patent Publication No. 4-309095 (pages 2 to 3, FIGS. 3 and 4)

  However, in the structure in which the concave portion for accommodating the slacking cord 11 is formed in the first housing 3 and the second housing 7 and the opening of the concave portion is closed with a lid so that the cord 11 does not get entangled with the device. There are the following problems.

(1) The number of parts such as lids increases.
(2) Man-hours for attaching increased lids and the like are required.
(3) The material cost increases as the number of parts increases.

  The present invention has been made in view of the above problems, and its object is to provide a headphone that has a small number of parts, can reduce assembly man-hours, and can reduce material costs.

  The invention according to claim 1, which solves the above problem, includes a first housing that abuts one ear, a second housing that abuts the other ear, and the first housing on one end side. A headband to which the second housing is attached on the other end side; a cord provided along the headband for connecting the first housing side device and the second housing side device; And a slide mechanism that moves at least one of the first housing and the second housing toward and away from the end of the headband along the longitudinal direction of the headband. A first fixing portion which is provided on one of the headband side and the housing side and fixes the cord; the headband side; and the housing. A second fixing portion that is provided on the other side of the side and fixes the cord; and on the side on which the second fixing portion is provided, passes through the first fixing portion, and slides in the housing. Provided at a place away from a parallel straight line, the circumferential surface of the cord between the first fixed part and the second fixed part can contact, and when the housing is brought close to the headband, A first guide for deforming the cord so that the first fixed portion side is convex and substantially U-shaped, and a side on which the second fixed portion side is provided, the cord being the first guide surface And a second guide for guiding the cord in a direction along the headphone.

  The cord between the headband and the housing is fixed by the first fixing portion and the second fixing portion. Accordingly, when the housing is moved away from the end portion of the headband by the slide mechanism, the cord extends. Conversely, the cord sags when the housing is brought closer to the end of the headband.

  The cord is in contact with the first guide by the second guide. When the housing is brought close to the end portion of the headband, the slack cord is deformed by the first guide so that the first fixing portion side becomes a substantially U-shape projecting.

  In the invention according to claim 2, when the housing is brought closest to the end of the headband, the first guide is located on the headband side with respect to the first fixing portion, and the housing is When the headband is farthest from the end of the headband, the first fixing portion is positioned closer to the headband than the first guide, and the first fixing portion is fixed by the first fixing portion. The headphone according to claim 1, wherein the cord is fixed so that a direction of an axis of the cord portion is substantially orthogonal to a sliding direction of the housing.

  According to the first and second aspects of the invention, the first fixing portion that is provided on one of the headband side and the housing side and fixes the cord, the headband side, and the housing A second fixing portion that is provided on the other side of the side and fixes the cord; and on the side on which the second fixing portion is provided, passes through the first fixing portion, and slides in the housing. Provided at a place away from a parallel straight line, the circumferential surface of the cord between the first fixed part and the second fixed part can contact, and when the housing is brought close to the headband, A first guide for deforming the cord so that the first fixed portion side is convex and substantially U-shaped, and a side on which the second fixed portion side is provided, the cord being the first guide surface Guide the cord in the direction of contact By providing a second guide, a conventionally required lid becomes unnecessary, the number of parts is reduced. Moreover, since there is no man-hour for assembling the lid, the man-hour for assembling can be reduced. By eliminating the need for a lid, material costs can be reduced.

  According to the second aspect of the present invention, when the housing is moved closest to the end portion of the headband, the first guide is located closer to the headband than the first fixing portion, and the housing Is most separated from the end portion of the headband, the first fixing portion is positioned on the headband side from the first guide, and the first fixing portion is the first fixing portion. When the housing is moved by the slide mechanism by fixing the cord so that the axis direction of the portion of the cord that is fixed is substantially orthogonal to the sliding direction of the housing, the cord at the first fixing portion Is not greatly bent, and the life of the cord is prolonged.

  First, the overall configuration of the headphones of the embodiment will be described with reference to FIGS. 4 is a front view of the headphones of the embodiment, FIG. 5 is a view as viewed in the direction of the arrow B in FIG. 4, and FIG. 6 is a perspective view of the headphones of FIG. As shown in these drawings, a speaker 51 is provided in the first housing 53 that comes into contact with one ear of a headphone wearer. A speaker 55 is provided in the second housing 57 that comes into contact with the other ear of the headphone wearer. The first housing 53 and the second housing 57 are attached to the end of a headband 59 that is worn from the top of the wearer to the ear. Note that a subband 60 that is used when worn by a wearer (such as a child) with a small head is provided on the inner surface of the headband 59 of the headphones of this embodiment.

  Further, a cord for connecting the device on the first housing 53 side and the device on the second housing 57 side is provided inside the headband 59 along the headband 59. Such shaped headphones are called overhead headphones.

  In such a headphone, the first housing 53 and the second housing 57 can be approached / separated from the end of the headband 59 along the longitudinal direction of the headband 59, and at a desired position, A slide mechanism for holding the position is provided.

  Here, the slide mechanism will be described with reference to FIGS. Since the slide mechanism on the first housing side and the slide mechanism on the second housing side have the same structure, description will be given with the slide mechanism on the first housing side, and description of the slide mechanism on the second slide mechanism side. Is omitted. 1A is a cross-sectional view taken along a cutting line AA in FIG. 4 and shows a state in which the first housing is closest to the end of the headband 59, and FIG. 1B is a cross-sectional view of FIG. FIG. 2 is a diagram illustrating a state in which the first housing 53 is farthest from the end of the headband 59, FIG. 2 is a diagram illustrating the headband of FIG. 4, (a) is a front view, (b) FIG. 3A is a sectional view taken along the line BB in FIG. 1, FIG. 3C is a sectional view of FIG. 3A, FIG. 3 is a diagram illustrating the slider of FIG. ) Is a right side view, (c) is a left side view, (d) is a rear view, (e) is a top view, (f) is a bottom view, and (g) is a cut of FIG. It is sectional drawing in line CC.

  First, the headband 59 will be described with reference to FIG. A recess 101 is formed in a portion of the lower portion of the headband 59 that faces the head of the headphone wearer. When the headphones are assembled, the recess 101 is covered with a band cover 102 (see FIGS. 4 and 6).

  Concavities and convexities 103 and 105 are formed on the inner wall surfaces 101 a and 101 b along the longitudinal direction of the headband 59 among the inner wall surfaces of the recess 101. A first fixing portion 111 for fixing the cord is formed on the bottom surface 101c of the recess 101. The first fixing portion 111 of this embodiment is composed of two columnar protrusions 111 a and 111 b provided on the bottom surface 101 c of the recess 101. The distance between the two protrusions 111a and 111b (the distance between the outer peripheral surface of the protrusion 111a and the outer peripheral surface of the protrusion 111b) is set to be slightly smaller than the outer diameter of the cord to be fixed, and the two protrusions 111a, The cord is fixed by press-fitting the cord to be fixed between the protrusions 111b. Further, the two protrusions 111a and 111b are provided along the sliding direction of the first housing 53 (the direction of arrow E in FIG. 1B). Accordingly, the direction of the axis of the cord portion fixed by the first fixing portion 111 is fixed in a state substantially orthogonal to the sliding direction of the first housing 53 (see FIG. 1). The headband 59 is formed with a protrusion 59a for attaching the subband 60.

  Next, the slider 151 that moves in the recess 101 of the headband 59 will be described with reference to FIG. The slider 151 has a main body part 153 that moves in the recess 101 of the headband 59, a cylindrical part 155 that is formed in the lower part of the main body part 153, extends in the direction of the first housing 53, and is larger than the diameter of the cylindrical part 155. The large-diameter portion 157 is formed.

  As shown in FIGS. 3A to 3C, the first housing 53 is formed with a hole 53 a through which the cylindrical portion 155 is inserted, and a large-diameter portion 157 is formed on the inner wall surface of the first housing 53. By abutting, the slider 151 is rotatably attached to the first housing 53.

  The main body 153 is formed with a groove-shaped second fixing portion 161 for fixing the cord from the lower part to the upper part in FIG. The width of the second fixing portion 161 is set to be slightly smaller than the outer diameter of the cord to be fixed, and the cord is fixed by press-fitting the cord fixed to the second fixing portion 161. .

  On the upper end surface 153c of the main body 153, slits 158 and 159 are formed downward. Therefore, side portions 153 a and 153 b that are formed by the slits 158 and 159 and face the concave and convex portions 103 and 105 of the concave portion 101 of the headband 59 are formed in the main body portion 153. These side portions 153a and 153b are elastically deformed in the direction away from the concave and convex portions 103 and 105 of the concave portion 101 of the headband 59 by the slits 158 and 159.

  Convex portions 163 and 165 that can be engaged with the concave portions of the concave and convex portions 103 and 105 are formed on the surfaces of the side portions 153a and 153b of the main body portion 153 facing the concave and convex portions 103 and 105 of the concave portion 101. Yes. Therefore, as shown in FIG. 1, when the slider 151 is disposed in the concave portion 101 of the headband 59 and the slider 151 is moved along the inner wall surfaces 101a and 101b of the headband 59, the convex portions 163 and 165 of the slider 151 are formed. The head band 59 moves over the convex portions of the concavo-convex portions 103 and 105. When the convex portions 163 and 165 of the slider 151 get over the convex portions of the concave and convex portions 103 and 105 of the headband 59, the side portions 153a and 153b of the slider 151 where the convex portions 163 and 165 are provided are the concave portions 101 of the headband 59. Elastically deform in a direction away from the concavo-convex portions 103 and 105.

  When the operating force for moving the slider 151 is stopped, the convex portions 163 and 165 of the slider 151 are engaged with the concave portions of the concave and convex portions 103 and 105 of the headband 59, and the slider 151 maintains its position. That is, the slits 158 and 159 and the side portions 153a and 153b of the slider 151, the convex portions 163 and 165, the concave portion 101 of the headband 59, and the concave and convex portions 103 and 105 of the inner wall surfaces 101a and 101b, A slide mechanism that allows the first housing 53 and the second housing 57 to approach / separate from the end of the headband 59 along the longitudinal direction and holds the positions at a desired position is formed. .

  Next, with reference to FIG. 1 and FIG. 3, a structure for attaching a cord provided inside the headband 59 and connecting a device on the first housing 53 side and a device on the second housing 57 side will be described. The first housing-side cord attachment structure and the second housing-side cord attachment structure are the same structure, and therefore the first housing-side cord attachment structure will be described with reference to the second housing mechanism. A description of the attachment structure of the cord on the side is omitted.

As shown in FIG. 3, a first guide 201 and a second guide 211 are formed on the end surface 153 c of the main body 153 of the slider 151.
As shown in FIG. 1, the cord 221 is fixed to the first fixing portion 111 of the headband 59 and the second fixing portion 161 of the slider 151.

  As shown in FIG. 1B, the first guide 201 formed on the slider 151 passes through the first fixing portion 111 and is parallel to the sliding direction of the first housing 53 (the direction of arrow E in the figure). It is provided at a location away from the straight line L1. The first guide 201 is formed with a first guide surface 201 a with which the peripheral surface of the cord 221 between the first fixing portion 111 and the second fixing portion 161 can abut on the first fixing portion 111 side. Has been.

  Further, the second guide 211 formed on the slider 151 has a circumferential surface facing the circumferential surface of the cord 221 between the first fixed part 111 and the second fixed part 161 on the first fixed part 111 side. The cord 221 is in contact with the first guide 201 so as to guide the cord 221 in a direction along the guide surface 201a. The second guide 211 has a slight gap on the circumferential surface facing the circumferential surface of the cord 221 between the first fixed portion 111 and the second fixed portion 161 on the first fixed portion 111 side. You may make it oppose.

  As shown in FIG. 1B, when the first housing 53 is farthest away from the end of the headband 59, the first fixing portion 111 is positioned closer to the headband 59 than the first guide 201. However, the cord 221 does not meander and is almost fully extended. When the first housing 53 is brought close to the headband 59 from this state, the cord 221 is loosened.

  At this time, the first guide 201 provided at a location away from the straight line L1 that passes through the first fixing portion 111 and is parallel to the sliding direction of the first housing 53 (in the direction of arrow E in the figure) shows that As shown to (a), the code | cord | chord 221 deform | transforms so that the 1st fixing | fixed part 111 side may become a convex substantially U shape. The state shown in FIG. 1A is when the first housing 53 is closest to the end of the headband 59, and the first guide 201 is located on the headband 59 side with respect to the first fixing portion 111. ing.

According to such a configuration, the following effects can be obtained.
(1) The cord 221 is fixed by the first fixing portion 111 of the headband 59 and the second fixing portion 161 of the slider 151, and the slider 151 is provided with the first guide 201 and the second guide 211. Thus, the lid that was necessary in the past becomes unnecessary, and the number of parts is reduced. Moreover, since there is no man-hour for assembling the lid, the man-hour for assembling can be reduced. By eliminating the need for a lid, material costs can be reduced.
(2) When the first housing 53 is closest to the end of the headband 59 (the state shown in FIG. 1A), the first guide 201 is closer to the headband 59 than the first fixing portion 111. When the first housing 53 is farthest from the end of the headband 59 (the state shown in FIG. 1B), the first fixing portion 111 is closer to the headband 59 than the first guide 201. The first fixing portion 111 is arranged so that the direction of the axis of the portion of the cord 221 fixed by the first fixing portion 111 is substantially orthogonal to the sliding direction of the first housing 53. By fixing, when the first housing 53 is moved by the slide mechanism, the cord 221 is not greatly bent by the first fixing portion 111, and the life of the cord 221 is extended.

  The present invention is not limited to the above embodiment. In the above embodiment, the first guide 201 and the second guide 211 are provided on the slider 151 side, but may be provided on the headband 59 side.

4A is a sectional view taken along the line AA in FIG. 4 and shows a state in which the first housing is closest to the end of the headband, and FIG. 4B is a diagram illustrating the first housing in FIG. FIG. 5 is a diagram showing a state in which 53 is most separated from the end of the headband 59. FIG. 4A is a front view, FIG. 4B is a cross-sectional view taken along line BB in FIG. 4A, and FIG. 4C is a cross-sectional view of FIG. It is. FIGS. 1A and 1B are diagrams illustrating the slider of FIG. 1, where FIG. 1A is a front view, FIG. 2B is a right side view, FIG. 1C is a left side view, FIG. (F) The figure is a bottom view, (g) The figure is sectional drawing in the cutting line CC of (a) figure. It is a front view of the headphones of a form example. It is a B direction arrow directional view of FIG. It is a perspective view of the headphones of FIG. It is a figure explaining the conventional headphones.

Explanation of symbols

53 Housing 59 Headband 111 First fixing portion 161 Second fixing portion 201 First guide 211 Second guide 221 Code

Claims (2)

A first housing that abuts one of the ears;
A second housing that abuts the other ear;
A headband to which the first housing is attached to one end side and the second housing is attached to the other end side;
A cord provided along the headband for connecting the first housing side device and the second housing side device;
A slide mechanism that moves at least one of the first housing and the second housing toward and away from an end of the headband along a longitudinal direction of the headband;
In headphones having
A first fixing portion which is provided on one side of the headband side and the housing side and fixes the cord;
A second fixing portion provided on the other side of the headband side and the housing side for fixing the cord;
On the side where the second fixing portion is provided, the first fixing portion, the second fixing portion, the second fixing portion, and the second fixing portion are provided at locations away from a straight line passing through the first fixing portion and parallel to the sliding direction of the housing. A circumferential surface of the cord between the fixed portions can contact, and when the housing is brought close to the headband, the first fixed portion is deformed so that the first fixed portion side has a substantially U-shape that is convex. And a guide
A second guide that is provided on a side where the second fixing portion side is provided, and the cord guides the cord in a direction along the first guide;
Headphones characterized by providing. When the housing is closest to the end of the headband, the first guide is located on the headband side with respect to the first fixing portion,
When the housing is most separated from the end portion of the headband, the first fixing portion is located closer to the headband than the first guide,
The first fixing part is:
The headphone according to claim 1, wherein the cord is fixed so that an axial direction of the cord portion fixed by the first fixing portion is substantially orthogonal to a sliding direction of the housing.

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