JP3950750B2 - headphone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a headphone that is used by being attached to an auricle in order to hear sound emitted from a speaker. More particularly, the headphone is particularly suitable for long-time wearing, has a wide range of design choices, and has a low manufacturing cost. The present invention relates to a headphone manufacturing technique that is inexpensive and facilitates replacement of a speaker unit.
[0002]
[Prior art]
Headphones are roughly classified according to structural characteristics when worn, and are classified into, for example, a headband type, a hanger type that mimics the vine of glasses, and an inner ear type, and any type of headphones can hear sound by applying a speaker to the auricle. It becomes possible.
[0003]
Of these, the band type is a type in which the speaker unit is held in contact with the auricle via a substantially U-shaped hard band having an elastic force, and is mainly applied to sealed heavyweight headphones.
[0004]
Hanger-type headphones can be heard by attaching a speaker unit to a hard hanger formed in the shape of eyeglasses instead of a headband, and placing the hanger on an earring and applying the speaker to the auricle. Therefore, it is convenient to carry because it is compact.
[0005]
Inner-type headphones are those that hold a speaker unit inserted between the instep and the tragus, and are most commonly used as typical portable headphones because they are the smallest and lightest.
[0006]
[Problems to be solved by the invention]
Which type of headphones to use depends on the user's choice. That is, when emphasizing sound quality, headband type headphones are selected, but since the hard headband is used over the head and the head is tightened, the tightened part is painful. There are problems such as learning, so it is not suitable for long-time use. Moreover, since it is large as a whole, it is inconvenient to carry.
[0007]
On the other hand, the hanger type headphones can apply a relatively large-diameter speaker unit to the auricle without depending on the headband, so that sound quality comparable to the headband type can be obtained, and it is also convenient to carry. .
[0008]
However, since the hanger used here is made of a hard material and is usually formed in a size of the greatest common divisor, it may not necessarily be a size that fits the user's ear ring. For this reason, it has been pointed out that a hanger that is too large for the user easily falls off the ear ring, and a hanger that is too small causes pain in the ear ring.
[0009]
In addition, the inner ear type headphones are not only difficult to produce a powerful bass due to the small diameter of the speaker, but are also easily pushed out of the auricle because they are simply pushed into the auricle. In addition, when used for a long time, a painful feeling may occur due to pressure on the concha.
[0010]
Further, in the headband type and hanger type headphones, since the ear pad is directly pressed against the auricle, sweat may adhere to the ear pad particularly in a hot environment, which may cause discomfort.
[0011]
As another problem, in the case of headphones, the speaker unit is housed in a housing called a back shell, but in many cases, a molded product of synthetic resin is used for the back shell.
[0012]
For this reason, the investment cost with respect to the mold becomes a burden, and this causes an increase in cost. Moreover, it is not easy to change the speaker unit set in the back shell to a speaker unit of another model, and the degree of freedom in design is narrowed.
[0013]
Therefore, the problem of the present invention is that it can be worn for a long time without causing pain or discomfort, has a wide range of design choices, is inexpensive to manufacture, and can be easily replaced. It is to provide a headphone that can be used.
[0014]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a sound output unit having a baffle plate on the periphery of a speaker unit, an opening having a convex spherical appearance, and covering the opening with the baffle plate. a back shell which the sound output unit is housed inside in the, and a ear holder attached to the opening side of the back shell, the ear holder consists substrate having flexibility, the ear approximately centrally The auricle mounting hole is formed in a donut shape, and the auricle mounting hole can be enlarged or reduced in diameter around the auricle mounting hole. Expansion and contraction means for holding the insertion hole in a reduced diameter state smaller than the diameter of the auricle of the auricle , and between the back shell and the ear holder, a sound emitting surface of the sound output unit is provided. Separator with sound transmission covering It is characterized in that is provided.
[0015]
According to this configuration, since the auricle is wrapped by the ear holder, there is almost no feeling of pressure or close contact with the auricle, and therefore it can be used for a long time without causing pain or discomfort. Can do.
[0016]
In the present invention, it is preferable that the back shell is also made of a flexible substrate like the ear holder. As a base material to be used, any one of a fiber material, a nonwoven fabric, a synthetic leather, a soft foamed synthetic resin, or two of them can be exemplified. Among them, a thick material having a certain degree of self-holding property is preferable, and for example, a wet suit fabric formed by joining a sponge-like sheet and a fabric is suitably employed.
[0017]
In this way, by configuring the ear holder and the back shell from a flexible base material, first, the entire headphone becomes lighter, and the burden on the user when worn can be reduced.
[0018]
In addition, the ear holder and the back shell can be manufactured by cutting the base material and sewing or high frequency welding. Especially for the back shell, an expensive mold is not required and the number of parts is small. Manufacturing costs can be reduced. In addition, the color of the substrate can be easily varied.
[0019]
The back shell may be integrally formed from a single base material, but is preferably formed by a pair of shell members that are capable of opening and closing the back shell, that is, approximately divided in half. According to this, the shell member can be opened, the sound output unit can be taken out, and for example, another sound output unit having a speaker having a different size can be easily stored in the back shell, and the degree of freedom in design is increased. It is done.
[0020]
According to the present invention, since the sound-transmitting separator that covers the sound emitting surface of the sound output unit is provided between the back shell and the ear holder, the back portion of the sound output unit including the speaker unit and the baffle plate is provided. acoustic capacitance is clarified Rutotomoni, so that the sound emission surface of the speaker unit is protected.
[0021]
Moreover, in order to improve the shape retention of the back shell and to optimize the acoustic characteristics of the speaker unit, on the anti-sound surface side of the acoustic output portion in the back shell, a filler having air permeability (for example, Felt material and sponge body).
[0022]
As another aspect, in order to enhance the taste of the headphones, the base material constituting the ear holder and / or the back shell includes a temperature indicating ink material whose color changes according to the temperature change, and absorbs and diffuses sweat and heat. A fiber material having a large heat transfer amount can be used.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view schematically showing a pair of headphones according to the present invention, FIG. 2 is a cross-sectional view of one of the headphones, taken along line II in FIG. 1, and FIG. 3 is an exploded view thereof.
[0024]
Whether the headphones of the present invention are used as a pair of left and right (L, R) or only one of them depends on the user's choice. In the description, only one headphone 1 is shown and described for convenience.
[0025]
The headphones 1 include, as a basic configuration, a sound output unit 2, a back shell 3 in which the sound output unit 2 is accommodated, and an ear holder 4 attached to the sound output surface side of the sound output unit 2. .
[0026]
The sound output unit 2 includes a speaker unit 21 and a baffle plate 23 attached to the periphery of the speaker unit 21, and is connected to a not-shown portable recording / reproducing device or the like via a cord 24. Reference numeral 25 denotes a bush for fixing the cord 24 to the baffle plate 23.
[0027]
The back shell 3 includes an opening 31 having a circular shape that is substantially the same diameter as the baffle plate 23 of the sound output unit 2, and a rear side thereof has a storage space 32 of an appropriate size that can store the sound output unit 2 therein. The acoustic output unit 2 is stored in the storage space 32 so that the opening 31 is covered with the baffle plate 23.
[0028]
The ear holder 4 has an auricle attachment hole 41 that can be fitted to the auricle of the auricle B (see FIG. 7) at substantially the center thereof, and is formed in a substantially donut shape. Around the auricle attachment hole 41, that is, around the inner peripheral edge 4 b of the ear holder 4, an expansion / contraction means 42 that allows the auricle attachment hole 41 to be enlarged and reduced is provided.
[0029]
In this case, the ear holder 4 is made of a flexible base material, and the expansion / contraction means 42 is provided by appropriate means such as sewing an elastic member such as rubber on the inner peripheral edge 4b, and is attached to the auricle. The diameter of the hole 41 can be increased or decreased.
[0030]
In addition, the expansion / contraction means 42 holds the pinna mounting hole 41 in a diameter-reduced state smaller than the pinna ring diameter of the pinna B when the pinna mounting hole 41 is fitted to the ear. For this reason, when the ear holder 4 is attached, there is no feeling of pressure or close contact with the pinna B, and there is no pain or discomfort even when used for a long time.
[0031]
The ear holder 4 is formed from a flexible base material. Examples of this type of substrate include any one of a fiber material, a nonwoven fabric, synthetic leather, and a soft foam synthetic resin, or two of them. Among them, a thick cloth having a certain degree of self-retaining property is preferable, and for example, a wet suit cloth formed by joining a sponge-like sheet and a cloth is suitably employed.
[0032]
In this embodiment, the back shell 3 is also composed of a base material having the same flexibility as the ear holder 4. According to this, the headphone 1 as a whole becomes light, and the weight burden at the time of wearing can be reduced.
[0033]
Moreover, in this embodiment, the separator 5 comprised with the base material which has sound permeability between the back shell 3 and the ear holder 4 is attached. The separator 5 is attached so as to cover the sound emitting surface 22 of the sound output unit 2. This makes it possible to clarify the back acoustic capacity of the acoustic output unit 2 and protect the sound emitting surface 22.
[0034]
It is preferable that the storage space 32 of the back shell 3 is filled with a filler 6 made of, for example, a felt material or a sponge body having a predetermined air permeability as the back acoustic resistance of the sound output unit 2. According to this, shape retention in the case of forming the back shell 3 from a flexible base material can be improved, and the acoustic characteristics of the speaker unit 21 can be optimized.
[0035]
Next, an example of an assembling procedure in the case where each of the back shell 3, the ear holder 4 and the separator 5 of the bed phone 1 is made of a flexible substrate will be described with reference to FIGS.
[0036]
As for the back shell 3, preferably, a thick flexible base material such as a wet suit fabric is used, and a pair of shell members 3A and 3B formed from the base material as shown in FIG. Molding (cutting) and finishing into a spherical shape by, for example, hot pressing.
[0037]
Further, the illustrated chain line portions at the periphery of the shell members 3A and 3B are bent inward to form the joining margins 3a and 3b. And fastener members, such as a surface fastener and a slide fastener which are not illustrated, are attached between opposing surfaces 33 and 34 which shell members 3A and 3B oppose. FIG. 5A shows a state in which the shell member 3A, 3B is closed by the fastener member.
[0038]
The ear holder 4 is also preferably made of a thick flexible base material such as a wet suit fabric, and after the base material is shaped into a donut shape as shown in FIG. 4C, as shown in FIG. For example, a rubber band-like expansion / contraction means 42 is disposed around the inner peripheral edge 4b of the pinna attachment hole 41, and the expansion / contraction means 42 is attached by folding the inner peripheral edge 4b inward. The folding of the inner peripheral edge 4b is fixed by sewing or high frequency welding.
[0039]
Next, the ear holder 4 shaped in a donut shape is formed with a conical shape as shown in FIG. 5C by, for example, hot pressing as necessary, and then the outer peripheral side shown in FIG. 4C. 4a is formed by bending the chain line portion shown in FIG. For the separator 5, for example, a resin film having a large number of holes is cut into a circle, and the chain line portion on the outer peripheral edge side shown in FIG. 4B is bent inward to form a joining margin 5 a.
[0040]
Then, the joining margins 3a and 3b of the back shell 3, the joining margin 5a of the separator 5, and the joining margin 4a of the ear holder 4 are overlapped and joined together by sewing or high-frequency welding.
[0041]
In this way, by using a flexible base material for the back shell 3 and the ear holder 4 as the exterior body of the acoustic output unit 2, the patterned base material can be easily joined by a joining means such as sewing or high-frequency welding. In particular, regarding the back shell, an expensive mold die is not required and the number of parts is small, so that the manufacturing cost can be reduced.
[0042]
Further, as shown in FIG. 6A, the back shell 3 is composed of a pair of shell members 3A and 3B, and the slit-like seam 35 can be opened and closed by, for example, a fastener member (not shown). As shown in FIG. 6B, the joint 35 can be opened and the sound output unit 2 can be exchanged, so that the degree of freedom in design is increased.
[0043]
Alternatively, the back shell 3 can be formed from a single substrate. In this case, the acoustic output unit 2 is installed in the back shell 3 before attaching the separator 5 and the ear holder 4 to the back shell 3. Can be stored.
[0044]
In any case, when the acoustic output unit 2 is housed in the back shell 3, the peripheral edge of the baffle plate 23 of the acoustic output unit 2 is attached to the back shell 3, for example, a fixing means such as a double-sided adhesive tape or a surface fastener. It is preferable to fix with.
[0045]
In the above embodiment, the separator 5 is bonded to the back shell 3 and the ear holder 4 at the same time. For example, a surface fastener or a double-sided adhesive (adhesive) tape that allows the separator 5 to be attached and detached freely. It is also possible to provide fastening means such as.
[0046]
As schematically shown in FIG. 7, the headphone 1 expands the auricle insertion hole 41 against the expansion / contraction means 42 and covers the ear holder 4 over the auricle B of the person A, and then the expansion / contraction means 42. The auricle insertion hole 41 is reduced in diameter so as to be held on the auricle of the auricle B.
[0047]
According to this embodiment, since both the back shell 3 and the ear holder 4 of the headphones 1 are made of a flexible base material, they are lightweight, and are accompanied by pain and discomfort even when used for a long time. It can be used without any problems, and it can be deformed flexibly, so it is excellent in portability.
[0048]
Further, the shape retaining property is maintained by the baffle plate 23 and the filler 6 of the sound output unit 2 housed in the back shell 3, and the sound-transmitting separator 5 is provided so as to cover the sound emitting surface 22. Therefore, it can be suitably used without impairing the acoustic characteristics.
[0049]
In addition, since the acoustic output unit 2 can be easily exchanged with respect to the back shell 3, various acoustic output units 2 having different acoustic characteristics, and base materials (including materials and colors) of the back shell 3 and the ear holder 4 are included. ) Are prepared, a plurality of exterior bodies (housings) can be prepared, so that a variety of acoustic and design variations can be obtained.
[0050]
In this case, the base material constituting the back shell 3 or the ear holder 4 can include, for example, a temperature indicating ink material whose color changes with a change in temperature. According to this, the change in color and the unexpectedness of the headphones 1 can be enjoyed, and the taste is higher.
[0051]
In particular, as a base material constituting the ear holder 4, a fiber material having a large heat transfer amount that absorbs and diffuses sweat and heat (for example, a product name “Sophista” manufactured by Kuraray Co., Ltd.) can be used in a hot outdoor or studio. Even in use, it is possible to cool the ear and improve comfort during use.
[0052]
【The invention's effect】
As described above, the headphones of the present invention are made of a flexible base material that can accommodate the sound output unit, so that the entire headphones are light and the weight burden on the user can be reduced. In addition, since the auricle is wrapped with a flexible ear holder, it can be used for a long time without causing pain or discomfort associated with a feeling of pressure or adhesion to the auricle.
[0053]
In addition, since the ear holder and back shell can be manufactured by cutting the base material and sewing, especially for the back shell, an expensive mold die is not required and the number of parts is small. Cost can be reduced.
[0054]
In addition, you can enjoy various combinations of acoustic output units with different acoustic characteristics and headphones housings with variations in color, etc. Can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a pair of headphones according to the present invention.
FIG. 2 is a cross-sectional view taken along the line II in FIG. 1 of the one headphone.
3 is an exploded cross-sectional view of the headphones in FIG. 2. FIG.
FIG. 4 is a developed view of each of a back shell, a separator, and an ear holder applied to the headphones according to the present invention.
FIG. 5 is a perspective view of each of a back shell, a separator and an ear holder applied to the headphones according to the present invention.
FIG. 6 is an explanatory diagram showing that the sound output unit can be replaced with the back shell.
FIG. 7 is an explanatory diagram showing a usage example of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Headphone 2 Sound output part 21 Speaker unit 23 Baffle board 3 Back shell 31 Opening part 32 Storage space 33, 34 Opposite surface 35 Joint 3A, 3B Shell member 4 Ear holder 41 Ear attachment hole 42 Extending means 5 Separator 6 Filler B pinna

Claims (7)

An acoustic output unit having a baffle plate on the periphery of the speaker unit;
A back shell that has an opening and has an external appearance of a convex spherical surface, and the sound output unit is housed in the opening so as to cover the opening with the baffle plate ;
Including an ear holder attached to the opening side of the back shell,
The ear holder is made of a flexible base material, and is formed in a donut shape with an auricle attachment hole that can be fitted to the auricle at substantially the center, and around the auricle attachment hole, The auricle mounting hole can be enlarged / reduced , and is provided with expansion / contraction means for holding the auricle mounting hole in a reduced diameter state smaller than the diameter of the auricle of the auricle in a normal state , and the back shell and the above A headphone characterized in that a sound-transmitting separator is provided between the ear holder and the sound output surface of the sound output unit .   The headphone according to claim 1, wherein the back shell is also made of a base material having flexibility similar to the ear holder.   The headphone according to claim 1 or 2, wherein the base material is made of any one of a fiber material, a non-woven fabric, a synthetic leather, and a soft foam synthetic resin, or a joined body thereof.   The headphone according to claim 1, 2 or 3, wherein the back shell is composed of a pair of shell members that are divided in half so as to be freely opened and closed. The headphone according to any one of claims 1 to 4 , wherein a filler having air permeability is packed on a side of the sound output surface of the acoustic output portion in the back shell. The headphone according to any one of claims 1 to 5 , wherein the base material includes a temperature indicating ink material whose color changes with a change in temperature. The headphone according to any one of claims 1 to 6 , wherein the base material is made of a fiber material having a large heat transfer amount that absorbs and diffuses sweat and heat.

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