JP2013192032A - Headphone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve protection action for a cord of a headphone and to reduce touch noise.SOLUTION: A headphone 1 includes a main body portion 2 which has a driver unit outputting a sound and is mounted in the earflap, a bushing 4 which communicates with the interior of the main body portion 2 and is in such a shape that the bushing can be mounted on the incisurae intertragica, and a cord 3 which is led in the main body portion 2 through the bushing 4 and arranged snaking in the bushing 4. It is preferred that the cord 3 snakes along the shape of the bushing 4 or snakes spirally in the bushing 4. Further, it is preferred that the bushing 4 is made of an elastic body.

Description

  The present invention relates to a structure of a headphone worn in an auricle.

  Patent Document 1 discloses a configuration in which a bushing is formed of a high-hardness material and a low-altitude material for the purpose of improving the bending durability of the bushing provided at the connection portion between the body that outputs sound and the cord. Yes.

  Patent Document 2 has a plurality of convex portions made of an elastic body on a bushing disposed at a connection portion between a remote control unit and a cord for the purpose of reducing touch noise caused by the cord coming into contact with clothes or the like. A configuration for forming holes is disclosed.

JP 2009-176615 A JP 2011-211459 A

  In many cases, a bushing is provided at a connection portion between the main body of the headphones and the cord in order to protect the cord from breakage or the like. In addition, the presence of this bushing can also provide an effect of reducing touch noise as shown in Patent Document 2 above.

  However, since the bushing has been downsized with the recent miniaturization of headphones, the cord protecting action and the touch noise reducing action by the bushing are reduced.

  In Patent Document 1, the bushing extends substantially vertically from the main body, and the cord is arranged linearly in the bushing. Therefore, the cord is subjected to a tensile load (the cord is pulled out from the main body). It is considered that the protective action is not sufficient when the load is applied.

  Accordingly, an object of the present invention is to improve the protection function of headphones cords and reduce touch noise.

  One aspect of the present invention has a driver unit (25) for outputting sound, and communicates with a main body (2) mounted in the auricle (5) and the main body (2). A bushing (4) having a shape that can be attached to (7), and a cord (3) that is drawn into the main body (2) via the bushing (4) and meanders in the bushing (4). A headphone (1).

  Moreover, it is preferable that the cord (3) meanders along the shape of the bushing (4) in the bushing (4) or meanders spirally.

  The bushing (4) has an extension part (10) extending downward and rearward from the main body part (2), and the cord (3) meanders along the shape of the extension part. Is preferred.

  Moreover, it is preferable that the clearance gap (16) is formed between the rear-end part (15) of an extension part, and a main-body part (2).

  The cord (3) preferably extends downward from the lower portion (17) of the extending portion.

  The bushing (4) is preferably made of an elastic body.

  Moreover, it is preferable that a main-body part (2) is a canal type.

  ADVANTAGE OF THE INVENTION According to this invention, while improving the protection effect | action of the cord of headphones, touch noise can be reduced.

It is a side view which shows the structure of the headphones which concern on embodiment of this invention. It is a front view which shows the structure of the headphones which concern on embodiment of this invention. It is a rear view which shows the structure of the headphones which concern on embodiment of this invention. It is a perspective view which shows the structure of the headphones which concern on embodiment of this invention. It is a figure which shows the mounting state of the headphones which concern on embodiment of this invention. It is a figure which shows the cross-sectional shape of the 1st example of the headphones which concern on embodiment of this invention. It is a figure which shows the state of the cord in the bushing which concerns on the 1st example of the headphones which concern on embodiment of this invention. It is a figure which shows the cross-sectional shape of the 2nd example of the headphones which concern on embodiment of this invention. It is a figure which shows the cross-sectional shape of the 3rd example of the headphones which concern on embodiment of this invention. It is a figure which shows the cross-sectional shape of the 4th example of the headphones which concern on embodiment of this invention. It is a figure which shows the cross-sectional shape of the 5th example of the headphones which concern on embodiment of this invention. It is a figure which shows the cross-sectional shape of the 6th example of the headphones which concern on embodiment of this invention. It is a figure which shows the cross-sectional shape of the 7th example of the headphones which concern on embodiment of this invention. It is a figure which shows the cross-sectional shape of the 8th example of the headphones which concern on embodiment of this invention.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1-4 has shown the external appearance of the headphones 1 which concern on this Embodiment. FIG. 1 is a side view of the headphones 1, FIG. 2 is a front view of the headphones 1, FIG. 3 is a rear view of the headphones 1, and FIG. 4 is a perspective view of the headphones 1. FIG. 5 shows a wearing state of the headphones 1.
First, an outline of the headphones 1 according to the present embodiment will be described with reference to FIGS.

The headphone 1 has a main body 2, a cord 3, and a bushing 4.
The main body 2 outputs sound and is mounted in the user's auricle 5. The main body 2 has a housing 11 and an earpiece 12, and incorporates a driver unit 25 (detailed later) and the like for outputting sound. The casing 11 is made of a hollow metal or a curable resin. The earpiece 12 is made of an elastic body such as elastomer or silicon. The earpiece 12 has an opening 13 and can be inserted into the user's external auditory canal 6. Specifically, a portion mainly covered with the earpiece 12 is inserted into the ear canal 6 and attached to the user's ear. The housing 11 and the earpiece 12 are generally detachable.
In the present embodiment, as an example, a configuration in which the driver unit 25 is included in the ear canal when a part of the housing 11 is inserted into the ear canal is employed.

  The code 3 transmits an audio signal to the main body 2 and is formed by covering a conductive wire used for transmission with an insulator such as elastomer, vinyl chloride, or cloth. As shown in FIGS. 6 and 7, the cord 3 passes through the bushing 4 and is drawn into the housing 11. The bushing 4 has a through-hole 31 that communicates the inside of the housing 11 with the outside, and the cord 3 is disposed in the bushing 4 by being inserted into the through-hole 31. . The bushing 4 is cut into two or more (or a plurality of the bushings 4 are formed in a cut state), and the individual bushings 4 are bonded to each other so that the cords 3 are sandwiched between the individual bushings 4. May be disposed in the bushing 4. In the state where the cord 3 is disposed, the inside of the housing 11 and the outside do not necessarily need to communicate spatially.

Next, the bushing 4 will be further described with reference to FIGS. 5, 6, and 7. FIG. 6 shows a cross-sectional shape of the first example of the headphones 1. FIG. 7 shows a state of the cord 3 according to the first example in the bushing 4. Further, as shown in FIG. 6, the direction parallel to the line Sk passing through the center of the diaphragm and perpendicular to the diaphragm is defined as the front-rear direction, and in particular, the sound emission direction is defined as the front direction. Moreover, the direction parallel to the cut surface (cut surface in FIGS. 6 and 8 to 14) when the bushing 4 is evenly cut in the longitudinal direction and the direction perpendicular to the front-rear direction is the up-down direction, The direction from the housing 11 side to the bushing 4 side is the downward direction.
The bushing 4 is provided at a portion where the cord 3 and the casing 11 are connected, and communicates the inside of the casing 11 with the outside. The bushing 4 is made of an elastic body such as elastomer or silicon, and has a shape that can be worn while being touched so as to fit in the notch 7 between the beads as shown in FIG. As described above, by attaching the bushing 4 to the notch 7, the feeling of wearing and the wearing stability can be improved.

Further, the size of the bushing 4 is designed so that the bushing 4 is pushed upward by the inter-crocus notch 7 when it contacts the inter-crocus notch 7. A gap 16 is formed between the rear end portion 15 and the extending portion 10 of the bushing 4 and the housing 11. By providing the gap 16, the bushing 4 is displaced in accordance with the shape of the user's ear, so in many users, the relative position between the position where the cord 3 extends and the user's cheek etc. The position is always almost constant, and the cord 3 is easy to contact the human body even in various users, and the effect of reducing touch noise is high.
Further, since the bushing 4 has a shape that extends obliquely downward and rearward (extension portion 10), the bushing 4 is easily pushed upward by the intercrocus notch 7 in various users. . Further, since the gap 16 (or the thin portion) gradually increases toward the rear, the portion closer to the rear end portion 15 is easily displaced even with a weak force.
As described above, the bushing 4 according to the present embodiment is configured so that the lower surface of the bushing 4 is in contact with the inter-brow notch 7 in many users, so that the wearing feeling can be greatly improved.

  Instead of providing the gap 16, a member (thin portion) that is thinner in the left-right direction than the bushing 4 may be provided between the extending portion 10 of the bushing 4 and the housing 11. This thin portion can be configured by being connected to a bushing or a casing. Moreover, an elastic material can be used and the elastic coefficient should just be an elastic coefficient which can move a bushing 4 upwards, when the bushing 4 is pushed upwards by the notch 7. The thin portion may be integrated with the bushing 4 or may be a separate body. Further, the same material as the bushing 4 may be used.

  Next, the extended state of the cord 3 will be described with reference to FIGS. 5, 6, and 7. As described above, the bushing 4 has a shape (extending portion 10) that extends downward and rearward from the lower portion of the housing 11, and the rear end portion 15 and the extending portion 10 of the bushing 4, and the housing 11. A gap 16 is formed between the two. The cord 3 extends downward from a hole 17 formed in the lower portion near the rear end portion 15 of the bushing 4. As described above, the cord 3 extends from the hole 17 formed in the lower portion (lower surface) of the bushing 4 in the vicinity of the rear end portion 15, thereby further improving the touch noise reduction effect. This is because the cord 3 easily comes into contact with the user's cheek and the like, and vibration is more easily absorbed and dispersed.

As described above, the extending portion 10 is provided in the bushing 4, and the clearance 16 (or a thin portion) is formed between the extending portion 10 and the housing 11, so that the clearance 16 is cushioned when worn. This can greatly improve the feeling of wearing.
Further, since the clearance 16 is formed between the rear end portion 15 of the bushing 4 and the housing 11, the degree of freedom of fluctuation of the rear end portion 15 is increased, so that the tensile load is more easily absorbed and dispersed. Become. Thereby, the protection effect of the cord is further improved.
In addition, as will be described later, by arranging the cord in a meandering manner along the shape of the extending portion 10, the contact area between the bushing 4 and the cord 3 can be increased, and touch noise is further reduced. can do.

  Next, the internal structure of the headphones 1 will be described in detail with reference to FIGS. 6 and 7. 6 to 14, the cord 3 shows the state of the cord 3 in a state where the inside of the bushing 4 is seen through.

  The housing 11 has a first opening 21 formed at the end on the earpiece 12 side and a second opening 22 formed at the lower part. A driver unit 25 made up of a diaphragm, a voice coil, a magnet, and the like is disposed near the first opening 21. The upper end of the bushing 4 is fixed to the second opening 22. The cord 3 passes through the through hole 31 formed in the bushing 4 and is drawn into the housing 11. The conductive wire 32 exposed from the tip of the cord 3 is connected to a voice coil or the like of the driver unit 25, and the driver unit 25 emits (outputs) a sound based on a voice signal input via the cord 3.

  Next, a first example of the arrangement state of the cord 3 inside the bushing 4 will be described in detail with reference to FIGS. 6 and 7. The cord 3 meanders along the shape of the bushing 4 in the bushing 4. The meandering shape includes a first meandering portion 41 that curves from substantially downward to a rearward direction and a second meandering portion that curves from substantially rearward to a downward direction. As described above, in this example, the angle of the tangent line Sa of the cord 3 on the housing side of the first meandering portion 41 with respect to a predetermined reference line Sk (for example, a line passing through the center of the diaphragm and perpendicular to the diaphragm). And the angle of the tangent line Sb of the cord 3 between the first meandering portion 41 and the second meandering portion 42 with respect to the reference line Sk, and farther from the housing than the second meandering portion 42 with respect to the reference line Sk. The cord 3 meanders so that the angle of the tangent line Sc of the cord 3 on the side is different.

  Thus, since the cord 3 meanders in the bushing 4, the protective action of the connecting portion between the cord 3 and the main body 2 can be improved. When a tensile load (a load in a direction in which the cord 3 is pulled out from the casing 11) is applied to the cord 3, the load is absorbed and dispersed by the human body including the bushing 4, the meandering portions 41 and 42, and the notch 7 This is because that.

  In general, as the vibration transmitted through the cord 3 is touched with another material, the vibration is absorbed and the touch noise transmitted through the cord 3 is reduced. 4, the contact area between the cord 3 and the bushing 4 is widened, and vibrations transmitted through the cord 3 are absorbed and dispersed by the bushing 4, thereby further reducing touch noise.

  Next, another example of the arrangement method of the cord 3 inside the bushing 4 will be described with reference to FIGS. 8 to 14 show second to eighth examples of the cross-sectional shape of the headphones 1, that is, the meandering shape of the cord 3 in the bushing 4. These examples show that the meandering shape of the cord 3 in the bushing 4 is not limited to the first example, but allows various variations.

  The cord 3 according to the second example shown in FIG. 8 has four meandering portions 51, 52, 53, and 54 that are folded back in a substantially vertical direction. The cord 3 according to the third example shown in FIG. 9 has meandering portions 55 and 56 that are folded back substantially in the front-rear direction. The cord 3 according to the fourth example illustrated in FIG. 10 includes a spiral meandering portion 57. The cord 3 according to the fifth example shown in FIG. 11 has two meandering portions 58 and 59 that are folded back substantially in the vertical direction. The cord 3 according to the sixth example illustrated in FIG. 12 has a convex meandering portion 60. The cord 3 according to the seventh example illustrated in FIG. 13 includes a heart-shaped meandering portion 61.

  In the eighth example shown in FIG. 14, the bushing 4 has entered the interior of the housing 11 relatively large. The cord 3 has two meandering portions 62 and 63 inside the bushing 4 that has entered the housing 11. Thus, if the cord 3 is disposed so as to meander in the bushing 4 inside the housing 11 and is disposed linearly in the bushing 4 outside the housing 11, the bushing 4 is notched between the beads. The load on the cord 3 when it is displaced by being pushed by 7 is further reduced.

  Even with the above meandering shape, the protective effect of the cord 3 and the effect of reducing touch noise can be obtained. In particular, the larger the contact area between the bushing 4 and the cord 3, the more effective, and the fourth example in which the cord 3 meanders in a spiral shape is particularly effective.

  As described above, according to the headphones of the present embodiment, the vibration generated when the cord 3 comes into contact with an object during walking or the like is absorbed / dispersed by the human body including the bushing 4 and the intercostal notch 7. Noise can be reduced.

Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, in the above embodiment, a so-called canal type configuration in which the main body 2 is inserted into the external auditory canal 6 has been shown, but the present invention is not limited to this, for example, the main body is connected to the entrance of the external auditory canal 6. The present invention can also be applied to an inner ear type headphone other than the canal type that is hooked on the outer ear 5 part.
Moreover, even if it is the same canal type, the driver unit is not limited to the one at the tip, and it can be similarly applied to the one outside the pinna.

Further, in the present invention, “meandering” includes various shapes. If the angle of the tangent line in contact with the cord 3 changes at least once in the bushing 4, the touch noise can be reduced as compared with the conventional case. However, the contact area between the bushing 4 and the cord 3 can be increased as the angle of the tangent line contacting the cord 3 changes in the bushing 4, and the touch noise can be further reduced. Moreover, you may comprise so that it may meander in the depth direction of FIG.
Further, in the present invention, “meandering” includes various shapes as in the arrangement state of the cord 3 in each of FIGS. For example, it includes a state of being arranged in a spiral shape as in the fourth example. In addition, if the angle of the tangent line in contact with the cord 3 changes at least once in the bushing 4, the touch noise can be reduced as compared with the conventional case. However, the contact area between the bushing 4 and the cord 3 can be increased as the number of times the angle of the tangent line contacting the cord 3 changes in the bushing 4, and the touch noise can be further reduced. Moreover, you may comprise so that it may meander in the depth direction in FIGS.

DESCRIPTION OF SYMBOLS 1 Headphone 2 Main body part 3 Code | cord | chord 4 Bushing 5 Auricle 6 External ear canal 7 Intercostal notch 10 Extension part 11 Housing 12 Earpiece 13 Opening part 15 Rear end part 16 Crevice 17 Hole 21 First opening part 22 Second opening part 25 Driver unit 31 Through-hole 32 Conductive wire 41, 42, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61 Meandering portion

Claims (8)

A driver unit that outputs sound, and a main body unit to be worn in the auricle;
A bushing that communicates with the inside of the main body and has a shape that can be attached to a notch between beads.
A cord that is drawn into the main body through the bushing and arranged to meander in the bushing;
Headphones characterized by comprising. The cord meanders along the shape of the bushing;
The headphones according to claim 1. The cord meanders spirally in the bushing,
The headphones according to claim 1. The bushing has an extending part extending downward and rearward from the main body part,
The cord meanders along the shape of the extension part,
The headphones according to any one of claims 1 to 3, wherein: A gap is formed between the rear end portion of the extending portion and the main body portion,
The headphones according to claim 4, wherein: The cord extends downward from a lower portion of the extension portion.
The headphone according to claim 4 or 5, characterized in that. The bushing is made of an elastic body.
The headphones according to any one of claims 1 to 6, wherein: The main body is a canal type.
The headphones according to any one of claims 1 to 7, wherein:

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