JP4135043B2 - headphone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical type headphone in which a headband is hung over the back of the head.
[0002]
[Prior art]
In general, headphones are used to listen to music or other audio signals with an audio device such as a tape recorder or radio. Conventionally, headphones have a top-type headphone that hangs the headband above the human head, a bottom-type headphone that hangs the headband under the head, and a back-end that hangs the headband on the back of the head There are types of headphones.
[0003]
In addition, as an arrangement of the sound output port from the driver unit of the headphone as a sound source, the open air type headphone is disposed so as to cover the ear hole with the sound output port portion directed vertically to the temporal region. In addition, for the purpose of improving the feeling of use, the so-called vertical system in which the audio output port of the driver unit is arranged so that the audio is output straight to the ear canal facing toward the front of the head in the human ear canal. In recent years, headphones have been used.
[0004]
[Problems to be solved by the invention]
In such conventional headphones, the driver unit becomes larger and heavier when trying to produce high-quality sound, so that the user can support his / her own weight by placing an overhanging headband on the user's head. By hooking a temple-shaped locking tool on the earring portion of the lens, the weight is supported and the feeling of use deteriorates.
[0005]
In addition, if the headphone driver unit is small and light, it will be difficult to produce high-quality sound, and it will be difficult to set the opening of the air outlet and the air passage provided to improve acoustic characteristics as the size of the driver unit is reduced. .
[0006]
The present invention has been made in view of the above points, and an object of the present invention is to newly provide a headphone that can be made lighter and smaller to improve the feeling of use and that can produce a high-quality sound.
[0007]
[Means for Solving the Problems]
The headphone according to claim 1 of the present invention is a thin rod that can be elastically deformed, and is formed by bending a headband formed in an arc shape so as to be able to be hung around the back of the head, and folded back to each free end side of the headband. Integrally projecting the housing for the sound source part of the vertical system from the free end of each ear part to the hole side of each ear, constituting the part that is supported by contacting the upper side of each ear A case integrally provided at both ends of the headband, an opening penetrating a wall portion separating the space in the housing from the space in the case, and the opening of one hole being the housing And a cylindrical body having a predetermined length for opening the mouth of the other hole into the case .
[0008]
By constructing as described above, the headband is worn over the back of the head, and the earpiece is appropriately pressed against the upper part of each ear to support most of the weight of the headphones, and each housing is placed in the ear canal. It is possible to improve the feeling of use by maintaining the predetermined wearing position. In addition, it is possible to stably set a good listening state by appropriately holding the vertical sound source housing in a state in which the sound emission direction matches the ear hole direction extending in the front face direction.
[0009]
In addition, the opening provided through the wall that separates the housing-side space and the acoustically open space in the case allows the low-frequency peak characteristics of the sound generated by the sound source to be reduced to a low-frequency range. So that a higher quality sound can be transmitted directly to the eardrum so that a good sound can be heard. Furthermore, since this opening is provided in the wall portion arranged inside the case, the hole shape is not exposed on the outer surface of the case or the housing, so that a good appearance can be obtained.
Furthermore, the low-frequency peak characteristic of the sound generated by the sound source is appropriately reduced to a lower frequency range by the cylindrical body that is disposed through the wall portion that partitions the housing-side space and the acoustically opened space in the case. It is possible to listen to a good sound by shifting the peak of the bass sound and transmitting a higher quality sound directly to the eardrum. Furthermore, since the cylindrical body is provided through the wall portion disposed inside the case, the end of the cylindrical hole of the cylindrical body is not exposed on the outer surface of the case or the housing, so that a good appearance can be obtained. .
[0010]
Headphones according to claim 2 of the present invention, in the headphone according to claim 1, the wall portion separating the space within the housings from the space inside the case, and the small openings through the wall portion, a small opening characterized in that it comprises a damper which is arranged to close.
[0011]
By constructing as described above, the headband is worn over the back of the head, and the earpiece is appropriately pressed against the upper part of each ear to support most of the weight of the headphones, and each housing is placed in the ear canal. It is possible to improve the feeling of use by maintaining the predetermined wearing position. In addition, it is possible to stably set a good listening state by appropriately holding the vertical sound source housing in a state in which the sound emission direction matches the ear hole direction extending in the front face direction.
[0012]
In addition, a damper that closes a small opening in the wall that separates the housing-side space and the acoustically open space in the case keeps the peak value of the sound generated by the sound source low, resulting in higher quality. A good sound can be heard by transmitting a simple sound directly to the eardrum. Furthermore, since the damper that closes the small opening is provided on the wall portion arranged inside the case, the damper is not exposed on the outer surface of the case or the housing, so that a good design in appearance can be obtained.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the headphones of the present invention is shown in FIGS. As shown in the figure, the headphone 10 according to this embodiment is of a vertical type at both free ends of a headband 12 in which a vine, which is a thin rod-like member, is formed in an arc shape so as to be passed over a human back head H. A case 14 for configuring the sound source unit is provided.
[0016]
The headband 12 is made of a synthetic resin rich in elasticity, for example, polypropylene, and transmits an electric signal and an arc-shaped elastic wire that adjusts an elastic force acting in a direction in which both free ends approach each other, although not shown. Lead wires are disposed.
[0017]
In addition, both free ends of the headband 12 are combined with a case 14 provided continuously with the headband 12 to form a substantially semicircular arc-shaped ear-ring portion.
[0018]
In the present embodiment, as shown in FIG. 3, a portion from the center of the curved portion of each ear portion to each free end is constituted by the case 14.
[0019]
As shown in FIGS. 4 to 7, the case 14 mainly includes an inner case portion 24 that is integral with the housing 16, an outer case portion 26, and a cover 20.
[0020]
The inner case portion 24 is integrally formed with a housing 16 having a substantially small dome shape (substantially hollow small hemispherical shape) in a direction orthogonal to the plane of the inner portion 24A from the thick end portion of the inner portion 24A having a flat plate-like shape. Is formed.
[0021]
The housing 16 is provided with a small circular hole 28 for adjusting acoustic characteristics on the free end side at the base portion with the inner portion 24A, and adjacent to the extending side of the inner portion 24A from the small circular hole 28. A small opening 30 having an elongated deformed shape for adjusting acoustic characteristics is formed in the part.
[0022]
A pipe 32, which is a small cylindrical body made of a soft flexible plastic, is attached to the small hole 28 of the housing 16 so as to penetrate the base end of the pipe 32 so as to fit into the small hole 28. ing. The pipe 32 attached in this way has one end opening facing the most recessed portion in the center of the inside of the dome-shaped housing 16, and the other end opening from the inner portion 24 </ b> A of the inner case portion 24 to the outer case. It is installed so as to project a small amount toward the portion 26 side. In addition, it is good also as a structure which provides only the small circular hole 28 in the housing 16, and does not install the pipe 32. FIG.
[0023]
The small opening 30 of the housing 16 is closed so as to be covered with a damper 34 formed of a sponge-like material having air permeability, for example, urethane. In order to arrange the damper 34, as shown in FIGS. 5 and 6, the side surface portion of the inner case portion 24 on the outer case portion 26 side is formed with a shallow groove recess 36 having a large planar shape around the small opening 30. ing. Then, a substantially identical damper 34 is fitted into the recess 36 so that the small opening 30 is covered and closed.
[0024]
As shown in FIGS. 3 and 4, a driver unit 22 as a sound source unit is provided in an opening portion in the direction of arrow A on the free end side of the headband 12 in the housing 16 (the direction of the face of the wearer when using the headphones). And a cover 20 having a large number of small holes 18 for sound output ports. That is, in the space surrounded by the cover 20 and the housing 16, a driver unit 22 as a small sound source composed of a coil and a diaphragm (not shown) is arranged, and the direction of the arrow A through the small hole 18 of the cover 20. Is configured to emit voice. At this time, the driver unit 22 and the housing 16 are hermetically attached in order to maintain good acoustic characteristics.
[0025]
As shown in FIGS. 1 to 4, each outer case portion 26 is formed so as to have a planar shape that coincides with the corresponding inner case portion 24 and has a U-shaped cross section, and its outer surface portion is a head. It is formed in a streamline shape that gradually becomes thicker from the connecting portion with the band 12 to the free end portion and then becomes tapered. Further, the outer case portion 26 has a through hole through which a cord 38 with a microphone jack (not shown) is attached at the tip, and the cord 38 that passes through the through hole has a pipe 32 attached to the inner case portion 24. It is loosely inserted into the pipe hole, introduced into one housing 16, and connected to one driver unit 22.
[0026]
The cord 38 is connected to a lead wire (not shown) that is passed through the headband 12. The lead wire of the headband 12 passes through the inside of the outer case portion 26, is loosely inserted into the hole of the pipe 32 of the inner case portion 24, is introduced into the other housing 16, and is connected to the other driver unit 22. .
[0027]
The inner case portion 24 is integrally fitted to the outer case portion 26 so as to close the opening of the recessed portion. At this time, a minute gap is left at the joint between the outer case portion 26 and the inner case portion 24 so that the air inside the space surrounded by the outer case portion 26 and the inner case portion 24 can flow with the outside air. The interior of the space can be handled in the same way as if it was opened to the outside air acoustically.
[0028]
In the case 14 configured as described above, the sound generated by the driver unit 22 in the housing 16 is output to the space surrounded by the inner case portion 24 and the outer case portion 26 through the pipe 32, so that the low-frequency peak characteristic is obtained. Set so that the bass peak shifts to a lower range. Note that the sound generated by the driver unit 22 is output to the space surrounded by the inner case portion 24 and the outer case portion 26 through the small circular hole 28 of the housing 16, so that the low frequency peak characteristic is reduced to a lower frequency range. It may be set so that.
[0029]
Further, in the case 14, sound generated in the driver unit 22 by the damper 34 provided in the small opening 30 that opens in the partition between the space of the housing 16 and the space surrounded by the inner case portion 24 and the outer case portion 26. Keep the peak value of low.
[0030]
Thus, the sound generated from the driver unit 22 in the case 14 is made flat and high-quality acoustic characteristics by the action of the pipe 32 or the small circular hole 28 and the damper 34, and the sound is generated from the cover 20 side of the housing 16. The listener can open a higher quality sound.
[0031]
In addition, since the housing 16 is a vertical system in combination with the above-described effect, the sound emitted from the cover 20 side is directly transmitted to the eardrum without being reflected by the wall of the ear hole. A better and higher quality sound can be heard.
[0032]
As shown in FIGS. 1, 2, and 3, the headband 12 in the headphone 10 has a head at a portion at a distance L from the tip to the housing 16 in the direction indicated by the arrow A in each free end view. A contact support portion 12A for H is configured.
[0033]
The abutting support portion 12A is formed by forming a side portion of the headband 12 facing the head portion H into a flat surface that is wider and smoother than other portions, and rounds corner portions on both sides thereof. As shown in FIG. 1, each contact support portion 12 </ b> A is in a state of being substantially orthogonal to the extending direction of the housing 16 due to the elastic deformation of the headband 12 when the headphones 10 are worn on the head. It is configured as follows.
[0034]
In addition, each contact support portion 12A portion is provided with unevenness so as to make good contact with the head H and not to give a sense of incongruity, and is made slippery or covered with a sponge so that the surface is soft and cold. You may comprise so that it may not give a feeling.
[0035]
Each case 14 may be configured to integrally extend to the position of each contact support portion 12A, and each contact support portion 12A may be provided on each case 14 itself.
[0036]
Although not shown, the headphone 10 has a cord with a microphone jack attached to the tip of one case 14 and is connected to an audio device such as a tape recorder or a radio to connect the microphone jack from the audio device via the cord. The sent electric signal is input to the driver unit 22 of one case 14 and the electric signal is input to the driver unit 22 of the other case 14 so that the two driver units 22 are driven to generate sound. It is configured.
[0037]
Next, the usage and operation of the headphones of the present embodiment configured as described above will be described.
[0038]
As shown in FIGS. 1 and 2, the headphone 10 is hung so as to pass the headband 12 to the back of the head H, each abutment support portion 12A abuts on the upper side of each ear of the head H, and each housing. It wears so that 16 may enter into each ear hole E.
[0039]
In this wearing state, each contact support portion 12A is moderately moved above each ear of the head H by the urging force resulting from the elastic deformation of the headband 12 from the position indicated by the imaginary line to the position indicated by the solid line in FIG. It is elastically pressed by the pressing force. At the same time, each housing 16 is held in a state where a predetermined amount has entered each ear hole E. Since each housing 16 is configured to have a fixed length that protrudes toward the head H side with respect to each contact support portion 12A, the urging force when the headband 12 is elastically deformed is applied to each housing 16. By being received by the contact support portion 12A, it does not work as a force for pushing each housing 16 into the back of the ear hole E. Therefore, the housing 16 is not strongly pushed into the ear hole E.
[0040]
Further, the headphone 10 as a whole supports most of its own weight by appropriately pressing each contact support portion 12A against the upper part of both ears of the head H, and inserting each housing 16 into the ear hole E. Since the wearing position is maintained, the wearing state can be appropriately maintained, and even if the wearer moves slightly, the wearer can be prevented from coming off and can be used satisfactorily without any sense of incongruity.
[0041]
In addition, since the headphone 10 is configured in a vertical system, when each housing 16 held at an appropriate position with respect to the ear canal E generates a sound in the direction of arrow A by the function of the contact support portion 12A, the sound is appropriate. It is fired in the direction in which the ear canal E is directed and reaches the eardrum directly without being reflected by the wall of the ear canal E, so that a state in which a good acoustic effect can be obtained can be reliably maintained.
[0042]
【The invention's effect】
As described above, according to the headphones of the present invention, the entire sound including the sound source part is reduced in weight and size to improve the feeling of use, and furthermore, the acoustic characteristics generated in the sound source part can be flattened to produce a high-quality sound. Since the openings such as the shape are not exposed on the surface, there is an effect that a good appearance can be obtained.
[Brief description of the drawings]
FIG. 1 is a plan view showing a usage state of headphones according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a usage state of the headphones according to the embodiment of the present invention.
FIG. 3 is an overall perspective view showing a headphone according to an embodiment of the present invention.
FIG. 4 is an exploded perspective view showing a case portion of the headphones according to the embodiment of the present invention.
FIG. 5 is a side view showing the inner case portion of the case portion of the headphones according to the embodiment of the present invention.
6 is a cross-sectional view taken along line VI-VI in FIG.
7 is a cross-sectional view corresponding to the line VII-VII in FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Headphone 12 Headband 12A Abutting support part 14 Case 16 Housing 22 Driver unit 28 Small circular hole 30 Small opening 32 Pipe 34 Damper

Claims (2)

A headband that is elastically deformable and shaped like an arc so that it can be stretched over the back of the head,
The earband portion that is formed by bending to be folded back on each free end side of the headband, and constitutes a portion that is supported by contacting the upper side of each ear;
Cases provided integrally at both ends of the headband so as to integrally project a housing for a vertical sound source unit from the free end of each ear part to the hole side of each ear,
An opening penetrating a wall portion separating the space in the housing from the space in the case;
A headphone comprising: a cylindrical body disposed in the opening and having a predetermined length for opening the mouth of one hole into the housing and opening the mouth of the other hole into the case . In the wall portion separating the space in the housing from the space in the case ,
A small opening through the wall portion ;
Headphones according to claim 1, characterized in that it comprises a damper arranged to close the small opening.

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