JP2001189982A - Headphone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a headphone having a head band whose total length remains unchanged and that adopts a thin, slender and clean shape by eliminating step difference, ruggedness and thick part. SOLUTION: In the headphone 1, where a couple of left and right headphone units 2, 3 incorporating a driver unit, is connected by the head band 7, a pair of the left and right headphone units 2, 3 is mounted movably to both ends of the head band 7 via an engagement means 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headphone attached to an audio apparatus, and more particularly, to a headband in which left and right headphone units are movable relative to a headband so as to match the position of a wearer's ear. The present invention relates to headphones which can be formed into a thin, thin, and clean shape without steps, bumps, or thick portions.

[0002]

2. Description of the Related Art In recent years, portable audio devices having headphones such as CD (Compact Disc) players and MD (Mini Disc) players have tended to increase. FIG. 8 is a diagram showing an example of headphones attached to such a portable audio device. The headphone 31 is of a double-sided type, and is roughly composed of a pair of left and right headphone units 32 and 33 each containing a driver unit, and a headband 35 connecting the pair of headphone units 32 and 33. Headphone unit 3
Codes 37 and 2 are provided for the driver units 2 and 33, respectively.
38 are connected. Corrugated engagement pieces 35a are provided at both ends of the headband 35, and a stopper 35b having a step larger than the engagement piece 35a and having a step is formed on the base end side of the corrugated engagement piece 35a.

[0003] A pair of engaging pieces 35a of the headband 35 are formed with engaging holes 32 of the headphone units 32 and 33, respectively.
a, 33a and are engaged. When the headphone units 32 and 33 are respectively slid with respect to the pair of engagement pieces 35a of the headband 35 and adjusted to desired positions, the engagement holes 32 of the headphone units 32 and 33 are adjusted.
The headphone units 32, 33 are positioned by engaging the engaging claws 32b, 33b provided on the peripheral portions a, 33a with the valleys of the corrugated engaging piece 35a.

[0004]

By the way, in the above-mentioned headphones, a mechanism for expanding and contracting the headband 35 is provided in order to adjust the positions of the headphone units 32 and 33 by changing the length of the headband 35. I have. A part of the headband 35 is provided with a mechanism for inserting one into the other hole, and the inserted part is connected to the headphone units 32 and 33, and the headband is adjusted by adjusting the insertion length of the inserted part. The length of 35 is changed, and the positions of the headphone units 32 and 33 are adjusted.

For this reason, the headband 35 is provided with a stopper 35b, a corrugated engagement piece 35a, and a headphone unit 3.
There are steps, irregularities, and thick portions due to the portions that engage with the headbands 2 and 33, and there is a problem that the design is complicated and the appearance is impaired. Further, since a thick portion is required for the expansion and contraction mechanism of the headband 35, the entire headband 35 cannot be formed into a thin and neat shape.

Therefore, the present invention solves the above-mentioned problems by configuring the headband so that the total length of the headband does not change and the headphone unit including the driver unit is movable with respect to the headband. It is intended to provide a headband.

[0007]

According to the present invention, there is provided a headphone in which a pair of left and right headphone units including a driver unit are connected by a headband, wherein the pair of right and left headphone units are connected via an engaging means. The headband is movably attached to both ends of the headband.

In the headphone according to the present invention, a pair of left and right headphone units including a driver unit are movably mounted on both ends of the headband via the engaging means, so a mechanism for expanding and contracting the headband is required. Instead, the headband can be made thin, thin, and clean without steps, bumps, or thick portions.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a headphone according to the present invention will be described below with reference to the drawings. FIG. 1 is an external view of headphones according to the present invention as viewed from the back. The headphone 1 is of a one-sided type, and is roughly composed of a pair of left and right headphone units 2 and 3 containing a driver unit and a headband 7 connecting the housings 5 and 5 ′ of the pair of headphone units 2 and 3. . Adjusting portions 9 for movably supporting the pair of housings 5 and 5 ′ are provided at both ends of the headband 7, and a cord 10 from the right headphone unit 3 is provided on the rear side of the headband 7. A groove 7a for guiding and storing the headphone unit 2 is provided.

According to the present invention, the left and right headphone units 2 and 3 can be moved with respect to the adjusting portion 9 of the headband 7 so as to match the position of the wearer's ear. This allows for a thin, thin, and clean design without any gaps.

FIG. 2 is an exploded perspective view of the adjusting portion 9 of the headband 7, the moving member 13, and the left housing 5. Adjustment unit 9
Is schematically constituted by a base 12, a moving member 13 movably engaged with the base 12, and a cover 14 covering the base 12. The base 12 has an elongated shape having an arc shape on both sides, and an arc-shaped long hole 12a is formed substantially at the center.
An arc-shaped long groove 12b is provided on one side of an arc-shaped long hole 12a as an engagement means of the base 12, and an arc-shaped rack gear 12c is provided on the other side. Further, holes 12d for inserting screw portions of screws 16 for fixing the cover 14 are formed at both ends of the base 12, respectively.

FIG. 3 is an enlarged front view of the moving member 13.
The moving member 13 has a groove 13b between the pair of plate portions 13a for fitting into a fitting groove 5d described later of the housing 5,
The base 12 is provided above the pair of plate portions 13a, respectively.
An engaging portion 13c for engaging the long hole 12a, a base 13d provided above the pair of engaging portions 13c, and a base 1
A bent portion 13e projecting rearward of 3d and having a tip bent toward the base 12 side, and a bent portion 13e projecting forward of the base portion 13d.
And a protruding piece portion 13f for contacting the peripheral portion of the long hole 12a.

Further, a hole 13g for inserting a screw portion of a screw 17 for fixing the moving member 13 to the housing 5 is formed on the upper surface of the base 13d of the moving member 13. Both ends of a base member 13 d of the moving member 13 are fixed at both ends of a substantially U-shaped spring member 19 in a plan view, and an engagement projection 19 a for engaging with the rack gear 12 c of the base 12 is provided at the tip of the spring member 19. Is provided.

That is, as shown in FIG.
3 of the pair of plate portions 13a is formed in
a, and a pair of engaging portions 13 c
2a, the tip of the bent portion 13e engages with the long groove 12b of the base 12, the protruding portion 13f contacts the peripheral portion of the long hole 12a, and the engaging protrusion 19a of the spring member 19 Engage with the rack gear 12c. In this state, the moving member 13
When a force is applied in the direction along the long hole 12a, the engaging projection 19a of the spring member 19 is opposed to the urging force of the spring member 19.
Moves on the mountain portion of the rack gear 12c, and the moving member 13 can move within the range of the long hole 12a.

When the movement of the moving member 13 is stopped, the engaging projection 19a of the spring member 19 is moved to the rack gear 12c.
And the movable member 13 is positioned and locked. Therefore, the spring member 19 and the rack gear 1
The positioning and locking means is composed of 2c. A boss 14 a having a screw hole to be screwed with the screw 16 is provided at both ends of the inner surface of the cover 14 that covers the base 12.

The substantially circular dish-shaped housing 5 has an arc-shaped stepped portion 5a formed in a part of the outer peripheral portion. An elongated hole 5c for inserting the cord 10 is formed in a side wall 5b of the step portion 5a of the housing 5. Further, the housing 5
Are provided with fitting grooves 5d respectively fitted to the pair of plate portions 13a of the moving member 13, and the pair of fitting grooves 5
A boss 5e protrudes between d and protrudes into the groove 13b of the moving member 13. Boss part 5 of housing 5
In e, a screw hole for screwing with the screw 17 is provided. A hole 5f is formed in a side surface of the housing 5 for inserting and leading out the cords 10 and 11. The right housing 5 'has the same configuration as the left housing 5 except that there is no hole corresponding to the hole 5f of the left housing 5.

FIG. 4 is a plan view showing a state in which the moving member 13 and the housing 5 are assembled on the base 12. The moving member 13 is fitted into the long hole 12 a of the base 12, the screw portion of the screw 17 is inserted into the hole 13 g of the moving member 13, and its tip is screwed into the screw hole of the boss portion 5 e of the housing 5. And the housing 5 are integrated. The integrated moving member 13 and the housing 5 can be slid within the range of the long hole 12a of the base 12.

FIG. 5 is a view showing a state in which the moving member 13 and the left housing 5 are assembled to the base 12 as viewed from the back side.
On the inner surface of the left housing 5, a cord 10 is inserted from the right housing 5 'through the hole 7c through the groove 7a of the headband 7.
Is a cord locking member 5 which draws a loop and is a cord locking member.
g and is led out through the hole 5f. Hole 5
In f, the cord 11 connected to the left driver unit 22
Is also inserted and led out. The distal ends 11a and 11b of the cord 11 are soldered to terminals 22a and 22b of a left driver unit 22, which will be described later.

A boss portion 5h having a screw hole is protruded from a portion of the inner surface of the housing 5 facing the side wall 5b.
Accordingly, when the housing 5 is slid or moved in the range of the long hole 12a of the base 12, the loop-shaped cord 10 continuously changes from a small loop to a large loop with the cord locking portion 5g as a fulcrum. I do. Thereby, it is possible to reliably prevent the cord 10 from being pulled and cut.

FIG. 6 is a view showing a state in which the moving member 13 and the right housing 5 'are assembled to the base 12 as viewed from the back side. On the inner surface of the right housing 5 ', a cord 10 inserted through the hole 5c is engaged with a cord engaging portion 5g in a loop, and the distal ends 10a, 10b of the cord 10 are connected to terminals 22a of a right driver unit 22, which will be described later. , 22b.

FIG. 7 is an exploded perspective view of the driver unit 22 mounted on the housings 5, 5 '. The left and right driver units 22 have the same structure. The driver unit 22 is fitted to the cylindrical portion 23a of the holder 23. A large number of holes 23b are formed in a portion of the holder 23 surrounded by the cylindrical portion 23a for transmitting sound.
A boss 23c protrudes on one side and a pair of claws 23d protrudes on the other side of the cylindrical portion 23a of the holder 23. The boss 23c of the holder 23 is connected to the boss 5 of the housing 5.
h, and a hole for inserting a screw portion of the bolt 25 is formed.
The holder 23 can be fixed to the housing 5 by screwing it into the screw hole h. The pair of claw portions 23 d of the holder 23 are adapted to engage with holes (not shown) in the side wall 5 b of the housing 5. Further, an ear pad 27 is provided on the outer surface of the holder 23.

Next, a method of adjusting the headphone units 2 and 3 of the headphones by sliding the headphone units 2 and 3 so as to fit the ears of the wearer will be described. First, the headphones 1 are worn on the head. When the headphone units 2 and 3 are slid with respect to the adjusting portion 9 of the headband 7 to fit the ears of the wearer, the moving member 1 integrated with the housing 5 is moved.
3 moves against the urging force of the spring member 19,
The engaging projection 19a of 9 moves on the mountain of the rack gear 12c, and the moving member 13 moves within the range of the long hole 12a, thus moving the headphone units 2, 3 to a desired position.

When the headphone units 2 and 3 are moved to the desired positions and the movement of the headphone units 2 and 3 is stopped, the movement of the moving member 13 is stopped, and the engagement protrusion of the spring member 19 of the moving member 13 is stopped. The part 19a is the base 12
The moving member 13 and the headphone units 2 and 3 are positioned by engaging with the valleys of the rack gear 12c.

At this time, as shown in FIG. 5, a cord 10 wound in a loop inside the left housing 5 is used to slide the left headphone unit 2, that is, the left housing 5, with the cord locking portion 5 g. As a fulcrum, since the loop continuously changes from a small loop to a large loop, the slack of the cord 10 is absorbed, the cord 10 is not pulled and cut, and the cord 10 can be reliably prevented from being cut. The cord 11 connected to the left driver unit 22 is not pulled at all even if the left headphone unit 2 moves.

As shown in FIG. 6, the cord 10 wound in a loop inside the right housing 5 'also has a cord locking portion 5g as the right headphone unit 3, ie, the right housing 5' slides. With the fulcrum as a fulcrum, it changes continuously from a small loop to a large loop.
Can be reliably prevented from being pulled and cut.

Therefore, the left and right headphone units 2 and 3 can be moved relative to the adjusting section 9 of the headband 7 so as to match the position of the ear of the wearer.
There is no need to provide steps, bumps or thick portions on the headband, and the headband 7 can be made thin, thin and neat,
The design aesthetic can be improved.

The engagement projection 1 of the spring member 19 of the moving member 13
Since the left and right headphone units 2 and 3 are positioned and locked by engaging the valleys of the rack gear 12c of the base 12 with the base 9a, it is necessary to release the positioning lock and move the left and right headphone units 2 and 3. The headphone units 2 and 3 can be easily and smoothly moved with relatively small force to position and lock them.

Since the headphone 1 is of a one-sided type, the headphone 1 can be easily attached to the head or removed.
When the headphone 1 hits an object with the headphone 1 attached to the head, the headphone 1 is easily detached.
It is possible to prevent the headphone 1 from being damaged without damaging the wearer. Further, since the headphone 1 is of a one-sided type, even if the cords 10 and 11 are pulled, the headphones 1 are easily detached without damaging the cords 10 and 11.

Even if the cord 10 is slackened or pulled with the movement of the left and right headphone units 2 and 3, the cord 10 is wound in a loop, so that it continuously changes from a small loop to a large loop. The slack of the cord 10 can be effectively absorbed, and the cord 10 can be reliably prevented from being cut even when pulled.

In the above-described embodiment, the cords 10, 11 are derived from the left headphone unit 2. However, the present invention is not limited to this, and the cords 10, 11 may be derived from the right headphone unit 3. .

As the engagement means, the long groove 12a and the moving member 1
3, but it is a matter of course that other engaging means may be used. Although the spring member 19 and the rack gear 12c are used as the positioning and locking means, the invention is not limited thereto, and other positioning and locking means may be used. Although the headset is of the single-sided type, the present invention is not limited to this. Needless to say, the headphone may be of the double-sided type.

[0032]

As described above, according to the present invention,
Since the left and right headphone units can be moved to both ends of the headband via the engagement means so as to match the position of the wearer's ear, a mechanism for expanding and contracting the headband is not required,
The headband can be made thin, thin, and clean without any steps, bumps, or thick portions, and the aesthetic appearance of the design can be improved.

When the headphone is of a one-sided type, the headphone can be attached to the head or easily detached.
If the headphone hits an object while the headphone is worn on the head, the headphone is easily detached, so that the wearer can be prevented from being damaged and the headphone from being damaged. Further, since the headphones are of the one-sided type, even if the cord is pulled, the headphones are easily detached without damaging the cord.

[Brief description of the drawings]

FIG. 1 is an external view of headphones according to the present invention as viewed from the back side.

FIG. 2 is an exploded perspective view of an adjustment unit, a moving member, and a left housing of the headband according to the present invention.

FIG. 3 is a front view of a moving member.

FIG. 4 is a plan view showing a state where a moving member and a housing are assembled to a base.

FIG. 5 is a view of a state in which the moving member and the left housing are assembled to the base, as viewed from the back surface side.

FIG. 6 is a view of a state where the moving member and the right housing are assembled to the base, as viewed from the back surface side.

FIG. 7 is an exploded perspective view of a driver unit.

FIG. 8 is a diagram illustrating an example of a conventional headphone.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Headphone 2 Left headphone unit 3 Right headphone unit 5 Left housing 5g Cord locking part (cord locking member) 5 'Right housing 7 Headband 9 Adjusting part 10, 11 Cord 12 Base 12a Slot (engaging means) 12b Slot 12c Rack gear (positioning and locking means) 13 Moving member (engaging means) 19 Spring member (positioning and locking means) 19a Engaging projection 22 Driver unit

Claims (5)

[Claims] 1. A headphone comprising a pair of left and right headphone units incorporating a driver unit connected by a headband, wherein the pair of left and right headphone units are movably mounted on both ends of the headband via engagement means. Headphones. 2. The apparatus according to claim 1, wherein said engaging means includes a moving member fixed to said pair of left and right headphone units, and elongated holes respectively provided at both ends of said headband. The headphone according to claim 1, wherein the headphone is movably engaged with the elongated hole. 3. The headphone according to claim 1, further comprising positioning and locking means for positioning and locking the position of the headphone unit with respect to the headband. 4. The cord of one headphone unit among the cords connected to the respective driver units of the pair of left and right headphone units is led to the other headphone unit, and the pair of cords is derived from the other headphone unit. The headphone according to claim 1, wherein the headphone is provided. 5. The headphone according to claim 4, wherein the pair of left and right headphone units is provided with a cord hooking member for holding the cord by slackening.