JPH08256391A - Headphone - Google Patents

Abstract

PURPOSE: To improve the external appearance when the headphone is mounted and to make the headphone small. CONSTITUTION: A head band 11 of a headphone 20 is provided with a flexible plate 16 being a circular-arc strip, slide sections 17, 17 fitted to both left/right ends of the flexible plate 16 and a spring 13 connecting the left and right slide sections 17, 17. When the headphone 20 is mounted, the left right slide sections 17, 17 are extended in response to the size of the head of the user against an energizing force of the spring 13. Moreover, when the headphone is not mounted, the slide sections 17, 17 are set in the contained position at all times and the head band 11 provides a minimum length at all times.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to headphones.
More specifically, the present invention relates to headphones that can be miniaturized while improving the appearance when worn by expanding and contracting the headband.

[0002]

2. Description of the Related Art Heretofore, there has been known a headphone having a length adjusting function (free adjuster) capable of adapting to different head sizes of users. As shown in FIG. 17, a conventional headphone 10 includes a hollow arc-shaped headband 1 and speaker parts 2 and 2 attached to the left and right ends thereof.
Composed of and. A bellows portion 3 is arranged inside the headband 1, and the left and right ends of the bellows portion 3 are provided with one contact band 4.
Is connected to. At the center of the contact band 4, a contact portion 5 that contacts the top of the user's head is provided. When not attached, the contact band 4 is horizontally stretched from the left and right ends of the headband 1 by the biasing force of the bellows portion 3 in the direction indicated by the arrow.

When the headphone 10 is worn, the head is put in the arc of the headband 1 while the top of the head is pressed against the lower side of the contact portion 5 and the contact band 4 is pushed upward as shown in FIG. As a result, the speaker units 2 and 2 can be brought into close contact with the ears. At this time, the urging force of the bellows portion 3 urges the contact portion 5 downwardly in the direction indicated by the arrow F, so that the contact portion 5 is brought into close contact with the user's crown and the speaker portions 2,
Are urged inward and come into close contact with the user's ears. As a result, the headphones 10 are stably attached to the user's head.

[0004]

However, the diameter of the arc of the headband 1 of the conventional headphone 10 shown in FIG.
It is usually set to the maximum size of the size of the head of the assumed user. This is to prevent a user with a large head from being unable to wear it. Therefore, as shown in the figure, when a relatively small head (for example, a child) is worn, a gap L is created between the top of the head and the headband 1, which is unsightly in appearance.

For the same reason, the total length of the circular arc of the headband 1 is usually set to the maximum length of the expected size of the head of the user. Therefore, there is a problem that the size of the headphone 10 becomes large and inconvenience in handling during storage or carrying.

[0006] Therefore, the present invention proposes a headphone which can be improved in appearance at the time of wearing and can be miniaturized.

[0007]

In order to solve the above problems, according to the present invention, in a headphone having a flexible headband and a speaker section for outputting sound, the speaker section is attached. And a slide portion slidably attached to the end portion of the headband, and a biasing means for biasing the slide portion toward the storage position. It is characterized by sliding against power.

[0008]

When the headphones according to the present invention are worn, the left and right slide portions are pulled out as necessary against the biasing force of the biasing means. As a result, the headband extends to an appropriate length that is easy to wear and, after wearing, has an optimum length according to the size of the user's head. Therefore, the headband at the time of wearing has the required minimum length, so that a gap generated between the headband and the head of the user can be eliminated, and the appearance at the time of wearing can be improved. Further, when not mounted, the slide portion is arranged at the storage position so that the headband always has the minimum length.

[0009]

Next, one embodiment of the headphones according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the configuration of a headphone 20 which is a first embodiment according to the present invention. The headphone 20 includes an arc-shaped headband 11 and speaker parts 12 and 12 attached to the left and right ends of the headband 11. The headband 11 is provided with a flexible plate 16 which is an arcuate band-shaped body formed of a flexible and restorative material.
Sliding parts 17, 17 are slidably attached to the left and right ends of 6, respectively. Also, arms 23, 23 are rotatably attached to the lower portions of the slide parts 17, 17,
The speaker portions 12, 12 are rotatably attached to the ends of the arms 23, 23.

The left and right slide portions 17, 17 are connected by a single biasing means, which is a spring 13 in this example. Both ends of the flexible plate 16 are covered with cover plates 18, 18, and a space between the left and right cover plates 18, 18 is an absorption plate 19 which is a flexible thin plate and is bent in an arc shape. It is arranged. The spring 13 is arranged between the flexible plate 16 and the cover plates 18, 18 and the absorbing plate 19. Further, the cover 24 having a cushioning property so that the flexible plate 16 does not come into direct contact with the head of the user is provided with the flexible plate 16, the cover plates 18, 18, and the absorbing plate 1.
9 is covered.

As shown in FIG. 2, the spring 13 includes a flexible plate 16
It is located near the rear of the. Five protrusion-shaped first support portions 31, second support portions 32, and a third support portion, which are arranged along the left-right direction, are provided at the front edge portion, the rear-side central portion, and the rear edge portion of the flexible plate 16, respectively. A total of 15 support portions 33 are provided.

Further, a wiring supporting portion 34 having substantially the same shape as the second supporting portion 32 is provided on the front side of the second supporting portion 32 arranged in the center of the five. Further, each support portion 31, 32,
Between the 33 and the left and right cover plates 18, 18, there are thin plate-shaped first partition parts 41, 41 and second partition parts 42 along the front-rear direction.
42 are provided. An engaging portion 41 for inserting into the long grooves 45, 45 of the absorbing plate 19 is provided above the first partition portion 41.
a and 41a are projected. The second partition 42 is provided with two notches 42a, 42a for passing the spring 13 and the wiring 35, respectively. The wiring 35 is for connecting the left and right speaker units 12, 12 (FIG. 1).

The spring 13 includes a second supporting portion 32 and a third supporting portion 3.
It is sandwiched between 3 and and held at a predetermined position. here,
The central portion of the spring 13 is adhesively fixed by a fixing portion 51 as shown in FIG. Further, as shown in FIG. 2, the wiring 35 is wound once in a space surrounded by the first supporting portion 31, the second supporting portion 32, and the first partition portions 41, 41, and
It is sandwiched by the second support portion 32 and the wiring support portion 34 as shown in FIG.

Further, as shown in FIG. 2, the cover plates 18, 18
Plate-like portions 18a, 18a that can be elastically deformed are formed to project from the upper end of the plate-like shape, and insertion grooves 18b, 18b are provided near the tips of the plate-like portions 18a, 18a. On the other hand, the left and right ends of the absorption plate 19 have narrow insertion portions 19a, 19a.
Are formed. Further, the left and right insertion portions 19a, 19a
Long grooves 45, 45 are provided along the left-right direction. The long grooves 45, 45 are wide portions 45 having a wide groove width.
a, 45a and narrow portions 45b, 45b having a narrow groove width. Further, two protrusions 19b are formed on the front edge and the rear edge of the absorption plate, respectively.

As shown in FIG. 3, the absorbing plate 19 has the insertion portions 19a, 19a with the insertion grooves 18b, 1 of the cover plates 18, 18.
8b, the locking portions 41a, 41a of the first partitioning portion 41 are further inserted in the long grooves 45, 45, and the front and rear protrusions 19b are respectively inserted between the first supporting portion 31 and the third supporting portion 33. It is installed by.

Since the widths of the locking portions 41a, 41a are set narrower than the wide width portions 45a, 45a and wider than the narrow width portions 45b, 45b, the locking portions 4 are set in the long grooves 45, 45.
When inserting 1a and 41a, first, wide parts 45a and 4a
After being inserted into 5a, it is slid to the positions of the narrow portions 45b, 45b. Therefore, as shown in FIG.
Since a is located at the narrow portion 45b, the absorption plate 1
9 is locked.

Further, as shown in FIG. 5, the edge portion of the absorbing plate 19 abuts on the step portions 31a and 33a provided inside the first support portion 31 and the third support portion 33, and at the bottom surface thereof, The absorption plate 19 is fixed at a predetermined position by abutting the upper ends of the second support 32 and the wiring support 34.

As described above, the central portion of the absorption plate 19 is fixed in the left-right direction and the vertical direction. On the other hand, as shown in FIG. 3, the insertion portions 19a, 19a are formed in the insertion grooves 18b, 18
Since the long grooves 45 are long in the left-right direction, the locking portions 41a, 41a are slidable in the left-right direction. Therefore, the absorption plate 1
The center part of 9 is fixed, but the insertion parts 19 at the left and right ends
a and 19a are slidable in and out of the insertion grooves 18b and 18b.

On the other hand, the slide portion 17 has an opening 2 formed between the flexible plate 16 and the cover plate 18 as shown in FIG.
1 is provided with an insertion portion 22. Figure 6
As shown in, the insertion portion 22 is gently curved corresponding to the curvature of the headband 11. A spring mounting protrusion 52 is provided on the upper end of the insertion portion 22. The spring 13 is hooked on the spring mounting protrusion 52. Due to the urging force of the spring 13, the left and right slide parts 17, 17 when not mounted
Are held in a storage position, that is, a position in contact with the end of the flexible plate 16.

As shown in FIGS. 6 and 9, a guide projection 53 is provided at the tip of the insertion portion 22 toward the flexible plate 16 side, and this is provided in a guide groove 16a provided in the flexible plate 16. Has been inserted. As shown in FIG. 6, when the slide portion 17 is in the storage position, the guide protrusion 53 abuts on the upper end portion 54 of the guide groove 16a, and when the slide portion 17 is fully pulled out, the lower end portion 55 of the guide groove 16a. Abut. As a result, the sliding operation of the sliding portion 17 is restricted within the predetermined range. Further, as shown in FIG. 7, narrow grooves 22a, 22a are provided on both side surfaces of the insertion portion 22, and guide projections 17b, 17b provided on the flexible plate 16 are inserted therein.
These allow the insertion portion 22 to slide smoothly within a predetermined range.

When the headphone 20 is worn, with the top of the user's head in contact with the cover 24,
As shown in FIG. 8, the insertion portions 22, 22 of the left and right slide portions 17, 17 are pulled out as necessary against the biasing force of the spring 13 (FIG. 1). As a result, the headband 11
Is stretched to an appropriate length for easy mounting, and after mounting, the spring 13
The urging force (Fig. 1) provides the optimum length according to the size of the user's head. Therefore, the headband 11 when worn
Since the length is the minimum necessary length, it is possible to eliminate the gap between the headband 11 and the user's head, and improve the appearance when worn. The spring 13
The strength of (FIG. 1) is set to an appropriate urging force that does not pull the user's ear upward during wearing. Further, as shown in FIG. 1, when not mounted, the slide parts 17 and 17 are arranged at the storage position and the headband 11 is always the minimum length, so that the headband 11 is easy to handle during storage and transportation.

Further, as shown in FIG. 5, since the central portion of the spring 13 is adhesively fixed by the fixing portion 51, even if either speaker portion 12 is pulled, a uniform biasing force always acts. Therefore, for example, even when the user tries to attach the speaker unit 12 on one side and pulls the speaker unit 12 on one side to bring the speaker unit 12 into close contact with the other ear unit, the speaker unit 12 on the other side remains the same. It can be pulled out by force and there is no discomfort in the mounting operation. For this reason, the headphones can be worn with a natural movement as with ordinary headphones.

In this example, the case where the central portion of the spring 13 is fixed by the fixing portion 51 is shown. However, the expanding and contracting function of the headband 11 can be obtained without fixing the spring 13. Further, in this example, a single biasing means for the spring 13 is used, but independent biasing means for the left and right may be provided.

FIG. 9 shows the headphones 20 when not worn.
The state of the wiring 35 is shown. As described above, the wiring 35 is wound once at the center of the flexible plate 16. The length of the portion around which the wiring 35 is wound is set to be equal to or longer than the length at which the wiring 35 is pulled out when the left and right insertion portions 22, 22 are pulled out to the maximum extent. Therefore, as shown in FIG. 10, when the insertion portion 22 on the right side is pulled out, the wiring 35 is also pulled out along with it, but the central one-turn wound portion absorbs this pulled-out amount. This prevents the wiring 35 from interfering with the expansion and contraction function of the headband 11 described above.

Further, as shown in FIG. 11, when the circular arc of the headband 11 is narrowed due to wearing by a user with a small head, the upper absorption plate 19 is larger than the lower flexible plate 16. Since the flexible plate 16 is bent, the insertion portions 19a, 19a of the absorption plate 19 are slid by an appropriate length and pulled out from the insertion holes 18b, 18b of the cover plates 18, 18 according to the bending of the flexible plate 16. On the other hand, as shown in FIG. 12, when the circular arc of the headband 11 is spread due to wearing by a user with a large head, the upper absorption plate 19 has less deflection than the flexible plate 16, The insertion portions 19a, 19a are slid by an appropriate length according to the bending of the flexible plate 16 and are inserted into the insertion holes 18b, 18b.

As described above, the headphone 20 has a structure in which the flexible plate 16 and the cover plate 18 are arranged vertically to accommodate the spring 13 and the wiring 35 shown in FIG.
The insertion portions 19a, 19a of 9 slide into and out of the insertion holes 18b, 18b by sliding a length corresponding to the deflection. Therefore, the headband 11 can be flexibly bent according to the size of the user's head.

Further, as shown in FIG. 13, in this headphone 20, the headband 11 has the minimum length because the slide parts 17 and 17 are always arranged in the storage position when not mounted. Furthermore, since the speaker units 12, 12 are rotatably attached to the arms 23, 23 by the rotatable arms 23, 23, the speaker units 12, 12 can be folded inside the headband 11. In this way, by making the length of the headband 11 minimum and making it foldable, the headphones 20 can be downsized, and the handling becomes easy when storing or carrying.

FIG. 14 shows a second headphone according to the present invention.
An example will be described. The headphones 50 include an arc-shaped headband 51 and speaker portions 52, 52 attached to the left and right ends of the headband 51. Headband 51
Is composed of a flexible plate 56, which is an arcuate band-shaped body formed of a flexible and restorative material, and slide portions 57, 57 are slidably attached to the left and right ends of the flexible plate 56. ing.

As shown in FIG. 15, insertion holes 61 are formed at both ends of the flexible plate 56, and insertion portions 62 provided on the slide portion 57 are inserted therein. A disc-shaped winding portion 71 is rotatably attached to the bottom surface of the insertion hole 61. A spring 72 as a biasing means is provided at the upper end of the insertion portion 62.
One end of the spring 72 is wound around the winding portion 71 for a half turn to change its direction by 180 degrees, and then the insertion hole 61 is inserted.
It is hooked on a fixed protrusion 73 protruding from the bottom surface of the.

When the headphone 50 is worn, the insertion portion 62 of the slide portion 57 is moved to the spring 7 as shown in FIG.
It is pulled out as necessary against the urging force of 2. At this time, the winding portion 71 rotates, so that the spring 71 smoothly moves along with the extension. As a result, the headband 51 extends to an appropriate length that is easy to wear, and after wearing, the headband 51 always has the shortest length according to the size of the head of the user due to the urging force of the spring 72. The same effect as the embodiment can be obtained.

In this headphone 50, as shown in FIG. 15, the spring 72 is wound around the winding portion 71 for a half turn and the direction is changed, so that the distance L from the opening of the insertion hole 61 to the upper end is set to be short. If you do, spring 7
The spring length of 2 can be set long, and the slide portion 62
A large sliding range can be secured, and the biasing force of the spring 72 can be suppressed to a small value. Therefore, the spring 72
The space for mounting the headphone 50 can be set to the minimum, and the headphones 50 can be downsized.

[0033]

As described above, according to the present invention, in a headphone having a flexible headband and a speaker section for outputting a sound, the speaker section is attached to an end of the headband. A slide part that is slidably mounted and a biasing means that biases the slide part toward the storage position are provided so that the slide part slides against the biasing force of the biasing means during the mounting operation during mounting. It is the one.

Therefore, according to the present invention, since the headband has the optimum length during wearing, there is no gap between the head of the user and the headband, and the appearance during wearing is improved.
In addition, since the speaker unit is always arranged in the storage position when the headphones are not attached, the headphones can be downsized, and there is an effect that they can be easily handled for storage and transportation.

[Brief description of drawings]

FIG. 1 is a headphone 20 according to a first embodiment of the present invention.
FIG.

FIG. 2 is a perspective view showing a structure of a headband 11.

FIG. 3 is a top view showing a mounting state of an absorption plate 19.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

5 is a sectional view taken along line BB in FIG.

FIG. 6 is a cross-sectional view showing the structure of a slide portion 17.

FIG. 7 is a sectional view taken along the line CC of FIG. 6;

FIG. 8 is a front view showing a slide operation of a slide portion 17.

FIG. 9 is a top view showing a state of wiring 35 when not attached.

FIG. 10 is a top view showing a state of wiring 35 at the time of mounting.

FIG. 11 is a cross-sectional view showing a sliding operation of the absorption plate 19 when the arc of the headband 11 is narrowed.

FIG. 12 is a cross-sectional view showing a sliding operation of the absorption plate 19 when the arc of the headband 11 is expanded.

FIG. 13 is a front view showing the headphones 20 in a folded state.

FIG. 14 is a headphone 5 that is a second embodiment according to the present invention.
It is a block diagram which shows 0.

FIG. 15 is a cross-sectional view showing a state of a spring 72 when not attached.

FIG. 16 is a cross-sectional view showing a state of a spring 72 when mounted.

FIG. 17 is a configuration diagram showing a conventional headphone 10.

FIG. 18 is a diagram showing how the conventional headphones 10 are worn.

[Explanation of symbols]

 1, 11, 51 Headband 2, 12, 52 Speaker part 10, 20, 50 Headphones 13, 72 Spring 16, 56 Flexible plate 17, 57 Sliding part 18 Cover plate 18a Plate part 18b Insert hole 19 Absorbing plate 19a Insert part 23,63 Arm 35 Wiring 41a Locking part 45 Long groove 71 Winding part

Claims (3)

[Claims] 1. A headphone including a flexible headband and a speaker section for outputting a sound, wherein the speaker section is attached, and a slide slidably attached to an end of the headband. And a biasing unit that biases the slide unit toward the storage position, and the slide unit slides against the biasing force of the biasing unit during the mounting operation during mounting. headphone. 2. The urging means is a single means for connecting the left and right slide portions, and is fixed to the headband between the left and right slide portions. Headphones. 3. The headphone according to claim 1, further comprising wiring for connecting the left and right speaker units, the wiring being wound at least once between the speaker units.