JPH1155776A - Headphone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a headphone in which depression to left and right ears by a couple of left/right headphone units are adjusted depending on a size of a head of a user. SOLUTION: A couple of left/right head bands 6A, 6B are formed by nearly bisecting a length of nearly a circular-arc shape horizontally between a couple of left/right headphone units 2A, 2B. Then an adjustment means 10 is interposed while the other ends of a couple of the left/right head bands 6A, 6B are connected to adjust an angular posture of a couple of the left/right head bands 6A, 6B depending on a size of a head of a user by the adjustment means 10 so as to depress a couple of the left/right headphone units 2A, 2B onto left/right ears of the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to headphones that can adjust the pressing of a pair of left and right headphone units against left and right ears according to the size of the user's head.

[0002]

2. Description of the Related Art Headphones in which a pair of left and right headphone units accommodating an electroacoustic conversion unit (speaker unit) are connected by a substantially arc-shaped headband have various structural forms. There is disclosed an apparatus in which the length of a flexible headband can be changed according to the size of the user's head.

FIG. 5 is a diagram for explaining an example of a conventional headphone. The conventional headphones shown in FIG. 5 are disclosed in Japanese Patent Application Laid-Open No. 8-256391, and will be briefly described here. In FIG. 1, a conventional headphone 100 includes a pair of left and right speaker units 101 and 10.
1 is attached to an arc-shaped headband 103 via a pair of left and right arms 102,102.

[0004] The headband 103 has a flexible plate 104 which is an arc-shaped band having flexibility and restoring property.
105 is slidably mounted. The left and right slide portions 105 are connected by a single spring 106. Further, cover plates 107, 107 are put on both ends of the flexible plate 104, and the left and right cover plates 107, 10
An absorbing plate 108, which is a flexible thin plate, is arranged between the seven in a state of being bent in an arc shape. At this time, the spring 106 is disposed between the flexible plate 104 and the cover plates 107, 107 and the absorbing plate 108. Further, a cover 109 having cushioning properties is provided so that the flexible plate 104 does not directly contact the user's head.
7 and the absorbing plate 108.

When the headphone 100 is worn, the right and left slide portions 105 are pulled out according to the size of the user's head against the urging force of the spring 106. Also, when not mounted, the left and right slide parts 105, 1
05 is always disposed at the storage position by the urging force of the spring 106, and the headband 103 always has the minimum length.

[0006]

By the way, in the above-mentioned conventional headphones 100, the right and left slide portions 105, 105 are in accordance with the size of the user's head while resisting the urging force of the spring 106 in accordance with the mounting operation. The length of the headband 103 can be adjusted according to the size of the user's head, but the structure of the headphone 100 is complicated, and the urging force of the spring 106 depends on the size of the user's head. Change, the pair of left and right speaker units 101, 10
There has been a problem that the force of pressing 1 on the left and right ears depends on the size of the user's head.

Therefore, without changing the length of the flexible headband, the pair of left and right speakers can be satisfactorily applied to the left and right ears irrespective of the size of the user's head without changing the length of the headband. There is a need for headphones that can be pressed.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a pair of left and right headphone units accommodating an electroacoustic conversion unit, and a substantially arc-shaped length between the pair of left and right headphone units. A pair of left and right headbands having flexibility by connecting the pair of left and right headphone units to one end side, respectively.
Adjusting means for interposing the other end sides of the pair of left and right headbands in a connected state, and adjusting the angular posture of the pair of right and left headbands according to the size of the head of the user. Headphones.

In the headphone of the invention, the adjusting means is provided in a case in which slits for inserting the other end sides of the pair of left and right headbands are formed on the left and right sides, and is rotatably provided in a central portion of the case. An adjustment knob having a knob portion exposed outside the case, and a screw portion formed integrally with the knob portion, and the pair of left and right headbands respectively inserted into left and right slits of the case. The other end side is connected in the case, and is screwed into the screw portion of the adjustment knob to move up and down in the case with the rotation of the adjustment knob, so that the pair of left and right headbands A headphone comprising: a movable plate for adjusting an angle posture.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a headphone according to the present invention will be described below in detail with reference to FIGS.

FIG. 1 is an external view showing a headphone according to the present invention, in which (A) is a front view, (B) is a side view, and FIG. 2 is an angle of a pair of left and right headbands in the headphone according to the present invention. FIG. 3 is a cross-sectional view for explaining an adjusting means for adjusting the attitude, and FIG. 3 is an external view showing a state in which the angle attitude of a pair of left and right headbands is adjusted in the headphones according to the present invention.

As shown in FIG. 1, in a headphone 1 according to the present invention, a pair of left and right headphone units 2A and 2B are provided to face each other corresponding to the left and right ears of a user. The pair of left and right headphone units 2A, 2
B is a pair of left and right housings, each of which accommodates an electroacoustic conversion unit (speaker unit) (not shown) in a pair of left and right housings 3A and 3B, and presses the left and right ears against inner surfaces of the left and right housings 3A and 3B opposed to each other. Ear pads 4A, 4
B, and a pair of left and right housings 3A, 3A.
A pair of left and right hanger arms 5A, 5B are rotatably mounted on both outer sides of the outer arm B. At this time, the pair of left and right hanger arms 5A and 5B are rotatably attached to the outer sides of the pair of left and right housings 3A and 3B, and have a central portion protruding upward.

A pair of left and right headphone units 2
In order to connect A and 2B, the length of the flexible, substantially arc-shaped metal band is divided into two equal parts on the left and right sides to form a pair of left and right headbands 6A and 6B. , 6B, a pair of left and right hanger arms 5
By connecting to the site protruding above A and 5B,
A pair of left and right headphone units 2A, 2B is connected to one end of a pair of left and right headbands 6A, 6B.

Also, a pair of left and right headbands 6A, 6B
Is connected to adjusting means 10 for adjusting the angular posture of the pair of left and right headbands 6A and 6B, which is a main part of the present invention. Therefore, the adjusting means 10 is interposed in a state where the other end sides of the pair of left and right headbands 6A and 6B are connected, in other words, is interposed at a position where the headband is divided into approximately two right and left parts. At this time, the length of the pair of left and right headbands 6A and 6B does not change, and
It is connected to.

A head pad 7 for pressing against the user's head is mounted near a portion protruding above the pair of left and right hangers 5A and 5B, and the head pad 7 is connected to the pair of left and right headphone units 2A. , 2B so as to be stretchable and stretchable according to the size of the user's head. The head pad 7 allows the user's head to directly contact the pair of left and right headbands 6A, 6B and the adjusting means 10. To prevent them from doing so.

Here, an adjusting means 1 for adjusting the angular attitude of the pair of left and right headbands 6A and 6B, which is a main part of the present invention.
0 will be described with reference to FIGS.

As shown in FIG. 2, the adjusting means 10 comprises:
A substantially box-shaped case 11 is formed by being separated into upper and lower halves using a resin material. This case 11 has a hollow inside except for upper and lower boss portions 11a and 11b formed diagonally to the center to connect the upper and lower halves, and has an outer periphery to which the upper and lower halves are joined. Slits 11c and 11d are formed on the left and right of the site.

The reinforcing material 1 extends along the inner periphery of the case 11.
2 is bosses 11a and 11b and slits 11c and 11d
It is fitted while avoiding.

An adjusting knob 13 is rotatably provided at a central portion of the case 11, and the adjusting knob 13 exposes a knob portion 13a outside the case 11;
A screw portion 13b is formed in the case 11 integrally with the knob portion 13a. The adjusting knob 13 has small diameter portions 13c and 13d formed on the upper and lower sides of the screw portion 13b, the diameter being smaller than the screw portion 13b. Then, a snap ring 14 is fitted to the small diameter portion 13 d below the adjusting knob 13 so that the adjusting knob 13 does not come off the case 11.

Further, in the case 11, a movable plate 15 is screwed into a screw portion 13b of the adjustment knob 13, and the movable plate 15 is rotated by the rotation of the adjustment knob 13, and the boss portion 11a,
It is provided to be able to move up and down while its rotation is regulated by 11b. The movable plate 15 has left and right slits 11c,
Bifurcated connecting parts 15a, 15b are formed on the left and right corresponding to 11d, and these bifurcated connecting parts 15a, 15b are formed.
The other end sides of the pair of left and right headbands 6A and 6B inserted from the left and right slits 11c and 11d are connected to each other in a state where they are fitted respectively into b.

After the movable plate 15 is screwed into the screw portion 13 b of the adjusting knob 13 in the case 11, the boss portions 11 a and 11 b of the case 11 are fastened with screws 16.

Next, the adjusting means 10 constructed as described above is used.
Will be described. First, when the user turns the adjustment knob 13 clockwise, the movable plate 15 moves upward, so that the other end sides of the pair of left and right headbands 6A and 6B also move upward together with the movable plate 15 and move right and left. Since the other end sides of the pair of headbands 6A, 6B take an upward angular attitude, the slits 11c, 11
a pair of left and right headphone units 2A, 2 connected to one ends of a pair of left and right headbands 6A, 6B with d as a fulcrum.
B move toward each other (close direction). Therefore, this state is suitable for a user whose head size is small, and is as shown by a solid line in FIG.

On the other hand, when the user turns the adjusting knob 13 in the counterclockwise direction, the movable plate 15 moves downward, so that the other ends of the pair of left and right headbands 6A, 6B also move downward integrally with the movable plate 15. Since the other end sides of the pair of left and right headbands 6A and 6B take a downward angular posture, a pair of left and right headphone units 2A connected to one end sides of the pair of left and right headbands 6A and 6B with the slits 11c and 11d as fulcrums. , 2B move away from each other (opening direction). Therefore,
This state is suitable for users with large heads,
As shown in FIG. 3 by a dotted line.

Further, when the adjustment knob 13 is fully rotated clockwise or counterclockwise, the movable plate 15 is disengaged from the screw portion 13b of the adjustment knob 13, and
One of the small diameter portions 13c, (13)
Since d) is reached, breakage of the screw portion 13b can be prevented. Here, the movable plate 15 is connected to one of the small-diameter portions 13 of the adjustment knob 13.
When the adjustment knob 13 is turned counterclockwise or clockwise from the state of (c) and (13d), the screw portion 13b is formed by the spring property of the pair of left and right headbands 6A and 6B. The movable plate 15 is provided with a screw 13
b can be screwed again.

Therefore, when adjusting the angular posture of the pair of left and right headbands 6A, 6B in accordance with the size of the user's head, the lengths of the pair of left and right headbands 6A, 6B do not change, and the pair of left and right headbands 6A, 6B are not changed. Headbands 6A and 6B having flexibility even when the angular posture of headbands 6A and 6B changes
Of the headphone unit 2A, 2B can be satisfactorily pressed against the left and right ears regardless of the size of the user's head.

Next, an adjusting means 10A according to a modified example in which the adjusting means 10 is partially modified will be briefly described with reference to FIG.

FIG. 4 shows a headphone according to the present invention.
It is a figure for demonstrating the modification of an adjustment means, (A) is sectional drawing which sectioned the modification of the adjustment means, (B) is a top view of a reinforcement.

As shown in FIG. 4A, in the adjusting means 10A of the modified example, a stopper preventing structure for preventing the adjusting knob 13A from coming out of the case 11A is configured in a different form from the above, and the other parts are the same. Since the configuration is the same as described above, only the detachment prevention structure will be described here.

In the adjusting means 10A of this modified example, the screw 13 is provided below the knob 13a of the adjusting knob 13A.
b, a large-diameter portion 13e having a larger diameter than the large-diameter portion 13e, a small-diameter portion 13f having a smaller diameter than the large-diameter portion 13e, and a large-diameter portion 13g having the same diameter as the large-diameter portion 13e are sequentially formed. 13c, a screw portion 13b, and a small diameter portion 13d are sequentially formed.

On the other hand, the reinforcing member 12A, as shown in FIG. 4 (B), the groove portion 12a ₁ that can be a small diameter portion 13f is fitted in the adjustment knob 13A in the center of the illustrated left and right of the upper surface 12a is bored, and, adjusting knob 1 is connected with the groove portion 12a ₁
Round holes 12a ₂ which large diameter portion 13g of 3A can enter is formed by an offset from the center.

Then, the adjusting knob 13A is connected to the case 11A.
From the upper half side, while reinforcing material 12A from below
Together with fitted in the upper half, by entering the large diameter portion 13g of the adjustment knob 13A of the reinforcing member 12A in the upper half by moving in a direction perpendicular to the circular hole 12a ₂ of the reinforcing member 12A to the paper, after this , moving the reinforcing member 12A such that fits the small-diameter portion 13f of the adjustment knob 13A in the groove 12a ₁ in the paper in the perpendicular direction of the reinforcing member 12A, a large diameter portion 13e of the adjustment knob 13A and a large diameter portion 13f since the groove 12a ₁ of the reinforcing member 12A is sandwiched between the adjustment knob 13A can not come out from the top half of the case 11A. Thereafter, the lower half of the case 11A is assembled, and the adjustment knob 13A
Can be prevented.

[0032]

According to the headphone according to the present invention described in detail above, according to the first aspect, the pair of left and right headbands is divided into two substantially equal lengths on the left and right sides to form a pair of left and right headbands. The pair of left and right headbands are connected to each other with the adjusting means interposed therebetween in a state where the other end sides of the pair of right and left headbands are connected to each other. Since the pair of left and right headphone units are pressed against the left and right ears of the user, when adjusting the angle posture of the pair of left and right headbands according to the size of the user's head, Since the spring property of the flexible headband does not change so much even if the length does not change and the angular posture of the pair of left and right headbands changes, the pair of left and right headphone units is moved to the head of the user. It can shed satisfactorily press the left and right ears regardless of the size.

According to a second aspect of the present invention, the adjusting means rotatably mounts an adjusting knob on the case, and a pair of left and right headbands is attached to a movable plate which moves up and down in the case by rotation of the adjusting knob. Since the other ends are connected to adjust the angular attitude of the pair of left and right headbands, the structure of the adjusting means is simple and the reliability is good.

[Brief description of the drawings]

FIG. 1 is an external view showing a headphone according to the present invention.

FIG. 2 is a cross-sectional view for explaining an adjusting means for adjusting the angular posture of a pair of left and right headbands in the headphones according to the present invention.

FIG. 3 is an external view showing a headphone according to the present invention in a state where the angular posture of a pair of left and right headbands is adjusted.

FIG. 4 is a diagram for explaining a modification of the adjusting means in the headphones according to the present invention.

FIG. 5 is a diagram illustrating an example of a conventional headphone.

[Description of Signs] 1 ... Headphones, 2A, 2B ... A pair of left and right headphone units, 6A, 6B ... A pair of left and right headbands, 10 ... Adjusting means, 10A ... Adjusting means, 11 ... Case, 11c, 11d ... Slit, 11A ... Case, 13 ... Adjustment knob, 13a ... Knob part, 13b ... Screw part, 13A ... Adjustment knob, 15 ... Movable plate.

Claims (2)

[Claims] 1. A pair of left and right headphone units accommodating an electroacoustic conversion unit, and a substantially arc-shaped length between the pair of left and right headphone units is divided into approximately two equal parts on the left and right sides. A pair of left and right headbands having flexibility by connecting a pair of headphone units, and an angle between the pair of left and right headbands with the other end sides of the pair of left and right headbands being connected to each other; Adjusting means for adjusting the posture according to the size of the user's head. 2. The headphone according to claim 1, wherein the adjusting means is rotatably provided at a central portion of the case and a case having left and right slits for respectively inserting the other end sides of the pair of left and right headbands. An adjusting knob having a knob portion exposed outside the case, and a screw portion formed integrally with the knob portion in the case; and the pair of left and right heads respectively inserted into left and right slits of the case. The pair of left and right heads are connected by connecting the other end of the band in the case, and screwing the screw portion of the adjustment knob and moving up and down in the case with rotation of the adjustment knob. A headphone comprising: a movable plate that adjusts the angle of the band.