WO2003034779A1

WO2003034779A1 - Earphone for portable electronic apparatus

Info

Publication number: WO2003034779A1
Application number: PCT/JP2002/010551
Authority: WO
Inventors: Kumiko Kitahara; Emiko Matsuda
Original assignee: Prosper Industry, Inc.
Priority date: 2001-10-10
Filing date: 2002-10-10
Publication date: 2003-04-24
Also published as: JP2005184037A

Abstract

An earphone for portable electronic apparatus comprising an earphone cable part using a flexible hollow tube uncollapsible in the radial direction having one end facing the speaker of the portable electronic apparatus, and an ear fixing part provided at the other end of the earphone cable part and having an opening communicating with the interior of the earphone cable part, wherein a duct for transmitting a sound generated from the speaker is formed by the earphone cable part and the ear fixing part.

Description

Description Earphones for portable electronic devices

The present invention particularly relates to an earphone for a portable electronic device suitable for use in a portable telephone or the like in which an adverse effect of electromagnetic waves on a human body is eliminated. Background technology

In general, mobile phones are widespread. By the way, since mobile phones emit strong electromagnetic waves (electromagnetic waves) from their antennas, there is a concern that these electromagnetic waves may adversely affect the human body.

Although the adverse effects of electromagnetic waves on the human body have not yet been elucidated, animal experiment data has shown that the effects of exposure to a large amount of electromagnetic waves are clearly affected, and brain tumors and headaches also increase in humans The fact has also been reported.

For this reason, more and more people are using earphones that can use the mobile phone as far away from the head as possible without using the speaker built into the mobile phone.

On the other hand, earphones will be an essential accessory for mobile phones, considering that the number of videophone-type mobile phones that talk while watching the display will increase in the future.

However, earphones are also viewed as a source of electromagnetic radiation. In other words, electromagnetic waves are basically generated by the flow of current, but ordinary earphones have built-in speakers that convert electrical signals into mechanical vibrations (sounds), and can be used outdoors or in other noisy environments. It is said that there is a tendency to increase the volume from use, and since it is used at the position closest to the brain, the electromagnetic waves generated from the earphones cannot be ignored.

The present invention has been made in response to such a background, and has been disclosed in the art. The objective is to eliminate any adverse effects of magnetic waves, and to provide earphones for portable electronic devices that are low in cost and versatile. Disclosure of the invention

An earphone for a portable electronic device according to the present invention includes: a hollow tube-shaped earphone cable portion having one end opposed to a speed force provided in the portable electronic device; an earphone cable portion provided at the other end of the earphone cable portion; And an ear-attaching portion communicating with the earphone cable portion and the ear-attaching portion.

In this case, the earphone cable section may be provided with a detachable section that is detachable from the portable electronic device.

Further, the earphone cable portion is formed into an accessory portion by being wound in a coil shape, and can be used not only as an accessory of the portable electronic device but also as a strap of the portable electronic device.

In the present invention, the sound generated by the speaker propagates through the space in the duct formed by the earphone cable portion using the hollow tube and the ear mounting portion having an open port communicating with the inside of the earphone cable portion. Can hear the sound of the speaker directly from the opening. The speaker may be an earphone speaker electrically connected to the mobile phone via a connection terminal.

The earphone cable section may include a detachable section having a sound collection structure detachably fitted to the earphone speed.

The earphone cable unit, when not in use, _c the fixed rod de which can be installed is wound spirally on the outer peripheral side of the fixed orifice head provided in the detachable unit, the earphone cable to the outer peripheral side The part can be fitted and fixed to the ear mounting part in a state of being spirally wound. The fitting and fixing may be performed by forming a concave groove provided on one of the ear mounting portion and the fixed mouth pad, and a projection formed on the other of the ear mounting portion and the fixed mouth pad. Can be fitted. The earphone cable section may be made of a shape memory synthetic resin whose shape is stored in a spiral or coil shape. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a cross-sectional view showing a state in which an earphone for a mobile phone (mobile electronic device) according to a first embodiment of the present invention is mounted on the mobile phone.

FIG. 2 is an external front view of a mobile phone equipped with the mobile phone earphone.

FIG. 3 is an external side view of a mobile phone provided with the earphone for the mobile phone.

FIG. 4 is a cross-sectional view showing a state where the earphone for the mobile phone is detached from the mobile phone.

FIG. 5 is a partial cross-sectional configuration diagram showing a state in which an earphone for a mobile phone (portable electronic device) according to a modified embodiment of the present invention is mounted on the mobile phone. FIG. 6 is an external perspective view of a state in which an earphone for a mobile phone (portable electronic device) according to another embodiment of the present invention is applied to a mobile phone.

FIG. 7 is a cross-sectional view of FIG.

FIG. 8 is an enlarged explanatory view of a main part of FIG.

FIG. 9 is an explanatory view of the usage state of the mobile phone (portable electronic device) earphone shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION

Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

First, the earphone for the mobile phone (portable electronic device) according to the first embodiment

The configuration 1 will be described with reference to FIGS. 1 to 4.

2 and 3, P indicates a mobile phone (portable electronic device). This mobile phone P is a general mobile phone having a display Pd, a keyboard Pk, an antenna Pa, a microphone (transmitter) Pm, a ring lamp Pe, and the like. In addition, the mobile phone is a concept including not only a general mobile phone illustrated but also various mobile devices having a telephone function, such as a PHS and a mobile computer with a phone.

In addition, a receiver Ps is provided above the mobile phone P. The receiver Ps has a built-in speaker S as shown in FIG. 1, and has a sound output hole H in front of the speaker S, which is opened in the front part Ff of the mobile phone P. On the other hand, an earphone attaching / detaching hole 21 is provided which is orthogonal to the sound output hole H from the upper surface Fu of the mobile phone P and penetrates the sound output hole H. In the earphone attachment / detachment hole 21, a mobile phone earphone 1 according to the present embodiment described below can be attached / detached.

The earphone 1 for a mobile phone according to the present embodiment includes an earphone cable portion 2 having one end 2 a facing a speaker S provided in the mobile phone device P, and an ear mounting portion provided at the other end 2 b of the earphone cable portion 2. <Earphone cable section 2 uses a flexible hollow tube T that does not collapse in the radial direction. As such a hollow tube T, for example, a relatively hard plastic having elasticity with an outer diameter of about 2 [mm] and an inner diameter of about 1 [mm] can be used.

When such a plastic is used, it cannot be bent like a cord or an electric cord. However, as shown in Figs. 2 and 3, the accessory part C is wound by winding it into a circular coil shape. Can be formed.

By forming such an accessory part C, it can be freely extended as shown by a phantom line when used, and when not used, as shown by a solid line, when it is not used. It can be returned to its original shape.

For accessory part C, select the size and color and pattern of earphone cable part 2, including its size.Further, cover the outer surface of earphone cable part 2 with a cloth cover or attach a ribbon of your choice. Δ ₀ On the other hand, at one end 2a of the earphone cable section 2, as shown in FIG. The attachment / detachment portion 11 is a cylindrical body having one end to which the end of the earphone cable portion 2 is fixed, and can be attached to the earphone attachment / detachment hole 21 by, for example, press fitting.

In addition, an opening 22 facing the speaker S is provided on the peripheral surface of the attaching / detaching portion 11 when the earphone attaching / detaching hole 21 is attached. As a result, as shown in FIG. 1, when the attachment / detachment unit 11 is attached to the earphone attachment / detachment hole 21, the attachment / detachment unit 11 blocks the connection between the speaker S and the sound output hole H, and the sound output hole H The sound generated from the speaker S is transmitted to the internal space of the earphone cable 2 through the opening 22. Further, an ear mounting part 3 is fixed to the other end 2 b of the earphone cable part 2. The ear mounting section 3 is a simple hollow body formed in a size and shape that can be mounted in the user's ear hole, and has a connection port to which the other end 2 b of the earphone cable section 2 is fixed on the rear face and a front face. Has an opening 3 o. The opening 3 o may be left as it is, or a protective cover 23 such as a net or a perforated plate may be provided as in the embodiment. With the above configuration, the duct R that transmits the sound of the speed force S is formed by the earphone cable 2 and the ear mounting part 3, and the opening 22 of the attachment / detachment part 11 through the opening 3 o of the ear mounting part 3 until then _c communicates with the space, the use and Function of the mobile phone earphone 1 according to the present embodiment will be described with reference to the drawings.

First, when the earphone 1 for mobile phone is not used, as shown in FIG. 4, the attaching / detaching portion 11 of the earphone 1 for mobile phone is detached from the earphone attaching / detaching hole 21 and, for example, a rubber cap 25 is used. Closes the earphone attachment / detachment hole 21.

Thus, the space in front of the speaker S communicates only with the sound output hole H, and can be used without an earphone by bringing the sound output hole H closer to the user's ear.

On the other hand, when using the mobile phone earphone 1 according to the present embodiment, Remove the cap 25 from the earphone attachment / detachment hole 21 and attach (press-fit) the attachment / detachment part 11 of the mobile phone earphone 1 to the earphone attachment / detachment hole 21 as shown in FIG.

As a result, the space between the speaker S and the sound output hole H is blocked by the attachment / detachment portion 11 to prevent leakage from the sound output hole H in the past, and the space in front of the speaker S is formed by the opening of the attachment / detachment portion 11 Connects to the inside of the earphone cable 2 through 2 2.

That is, the space in front of the speaker S communicates with the opening 3 o of the ear mounting portion 3 via the duct R formed by the earphone cable portion 2 and the ear mounting portion 3.

Also, the ear mounting part 3 is mounted (inserted) into the user's ear hole. At this time, since the earphone cable section 2 has flexibility, the earphone cable section 2 is freely extended as shown by phantom lines in FIGS. 2 and 3.

As a result, when the mobile phone P is used, the sound generated from the speaker S propagates through the internal space of the duct R formed by the earphone cable 2 and the ear-mounted part 3, and the user generates the sound generated by the speaker S. You can listen directly.

If the ear mounting part 3 is removed from the ear hole, the earphone cable part 2 returns to the original shape of the accessory part C due to its own elasticity, as shown by the solid line in FIGS. 2 and 3. .

On the other hand, FIG. 5 shows a modified embodiment of the above embodiment. In the embodiment shown in FIGS. 1 to 4 described above, the accessory section C is formed by winding the earphone cable section 2 in a coil shape, but the modified embodiment shown in FIG. 2 is used for strap E.

In this case, an accommodating section 30 capable of accommodating the ear mounting section 3 is provided on a part of the back surface of the mobile phone P, and a lid section 32 for opening and closing the accommodating section 30 by the hinge section 31 is additionally provided.

As a result, as shown in FIG. 5, when the ear mounting portion 3 is housed in the housing portion 30 and the lid portion 32 is closed, the ear mounting portion 3 is prevented from falling out simultaneously with the housing. Thus, the earphone cable section 2 can be used (also used) as a strap E as shown in FIG.

In this case, it is necessary to provide a lock portion in the earphone attachment / detachment hole 21 to prevent the earphone attachment / detachment portion 11 from easily coming off when attached. Note that one end of the earphone cable section 2 may be fixed to the earphone attaching / detaching hole 21.

According to the earphone 1 for a mobile phone according to the present embodiment, since no electric signal is used as in a general earphone, no electromagnetic waves are generated from the earphone cable unit 2 and the ear mounting unit 3.

Therefore, it is possible to eliminate any adverse effects of electromagnetic waves on the human body. In addition, since it can be configured by a combination of simple parts, it can contribute to cost reduction and can be used for accessories (accessory part C) and strap E, which can be used in a variety of ways.

In actual use, even if the earphone cable section 2 is selected to have a practical length of 50 to 100 cm, the clarity and volume of the received sound are sufficient, and Above, no problem occurred.

In addition, the microphone Pm of the mobile phone P recently has high performance, so that even if a voice is emitted from a considerably distant position, a conversation can be practically performed without any problem.

FIGS. 6 to 8 show a second embodiment of the earphone for a portable electronic device according to the present invention, and the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals and are described. Is omitted, and only the characteristic points will be described below.

The embodiment shown in these figures is a case where the present invention is applied to a mobile phone as in the first embodiment described above. In this embodiment, an earphone is connected to the connection connector of the mobile phone P. The speed YS is electrically connected via a connection terminal YT, and the earphone 100 for the mobile phone of the present embodiment is used as the earphone speaker YS.

The mobile phone earphone 100 of the present embodiment has one end facing the earphone speed YS and the other end provided with an ear mounting portion 300. The earphone cable section 200 is provided.

The earphone cable section 200 is made of a flexible hollow tube T that does not collapse in the radial direction. For example, the earphone cable section has a circular cross section having an outer diameter of 2 mm and an inner diameter of 1 mm, and is relatively hard and elastic. It can be molded with synthetic resin.

In the case of the present embodiment, the earphone cable unit 200 is spirally wound when not in use. Also, a detachable portion 110 that is detachably attached to the earphone speaker YS is provided at a portion of the earphone cable portion 200 facing the earphone speaker YS.

One end of the detachable portion 110 is open and the inside is formed in a hemispherical cavity, and one end of the horn cable portion 200 is inserted into a hole 110 a formed through the side surface. By being fixed, the inside of the earphone cable part 200 and the inside of the detachable part 110 are connected to each other.

The attachment / detachment portion 110 is made of, for example, a relatively flexible synthetic resin, and its opening is fitted so as to be in close contact with the outer peripheral edge of the hemispherical earphone speaker YS. By doing so, the attaching / detaching portion 110 of this embodiment has a sound collecting structure in which no sound leaks to the outside, no noise enters from the outside, and the sound is cut off from the outside.

Also, when the detachable portion 110 is fitted to the earphone speaker YS, a cavity and a wall surrounding the outer periphery are formed, and this wall reduces the mechanical sound generated from the speaker YS and simultaneously efficiently transmits sound waves to the earphone. Transmit to the cable section 200.

The shape of the attaching / detaching portion 110 is not limited to such a hemispherical shape. For example, the attaching / detaching portion 110 may be formed in a spherical shape so as to substantially cover the outer periphery of the earphone speaker YS. Further, the detachable portion 110 may be formed integrally with the earphone speed Y S.

On the other hand, a fixed rod 400 of the earphone cable unit 200 is physically protruded from the center of the outer peripheral surface of the detachable unit 110. The fixed rod 400 has a smooth surface and is flexible, and the earphone cable 200 spirally wound on the outer peripheral side is fixedly installed in a contracted state. Is placed.

An annular concave groove 400a is provided on the distal end side of the fixed opening 400. As shown in detail in FIGS. 7 and 8, the ear mounting part 300 has a cylindrical part 300 a, an ear inserting part 300 b, a partition wall 300 c, and a protruding part 3. 0 0 d.

The cylindrical portion 300a is formed in a cylindrical shape with both ends opened, and a partition wall 300c is provided slightly below the middle in the longitudinal direction, and is partitioned by the partition wall 300c. The upper side is an open opening 3 o 1 that is hollow and open to the front.

The opening 3 o l may be hollow or a diaphragm may be installed inside. As in the first embodiment, a protective cover such as a net or a perforated plate may be provided.

On the other hand, on the side surface of the upper cylindrical portion 300a partitioned by the partition wall 300c, a hole portion 300e penetrating therethrough is provided, and the earphone cable portion is provided in the hole portion 300e. By fixing the other end of 200, the _c- ear insertion portion 300b in which the inside of the earphone cable portion 200 and the inside of the ear mounting portion 300 communicate with each other becomes a cylindrical portion 300b. aIt is integrally formed on the upper end side, and has a thin section with a semicircular cross section so that it can be inserted softly into the ear.

The inner diameter of the cylindrical portion 300a is formed such that the outer diameter at the distal end side of the fixed mouth pad 400 can be inserted and fitted. The protruding portion 300d is provided on the lower side of the cylindrical portion 300a partitioned by the partition wall 300c and protrudes from the inner peripheral surface of the cylindrical portion 300a.

The protrusion 300d is formed so as to be fittable in the concave groove 400a of the fixed rod 400, and these concave and convex fits are formed on the outer periphery of the fixed rod 400. This is performed by inserting the distal end side of the fixed mouth pad 400 into the cylindrical portion 300a in a state where the earphone cable portion 200 is spirally wound and arranged.

When the concave groove 400a and the projection 300d are fitted and fixed in such a state, the earphone cable is attached to the outer periphery of the fixed rod 400. The part 200 can be stably held in a state of being contracted into a spiral or coil shape.

The concave and convex fitting between the concave groove 400a and the projection 300d may be performed by providing the concave groove on the ear mounting part 300 side and the projection on the fixed pad 400 side. Yeah. According to the mobile phone earphone 100 configured as described above, the sound generated from the earphone speaker YS is provided by the attaching / detaching section 110, the earphone cable section 200, and the ear mounting section 300. A duct R to be propagated is formed, and the sound wave propagates in the air from the attaching / detaching portion 110 to the open mouth 3ο1 of the ear mounting portion 300.

On the other hand, when the earphone 100 for the mobile phone according to the present embodiment is used, the earphone cable section 200 is normally connected to the fixed mouth pad 400 provided on the detachable section 110 when not in use. First, the ear mounting portion 300 is removed from the fixed rod 400, and the ear mounting portion 300 is removed as shown in FIG. Insert (insert) 0 into the ear hole of the user.

At this time, since the earphone cable portion 200 has flexibility, as shown in the figure, the earphone cable portion 200 is freely extended by deforming the spiral shape.

As a result, when the mobile phone 使用 is used, the sound generated by the earphone speaker YS is transmitted through the inner space of the duct R formed by the attaching / detaching portion 110, the earphone cable portion 200, and the ear mounting portion 300. The sound propagates in the air, and the user can directly hear the sound generated by the speaker YS.

If the ear mounting part 300 is removed from the ear hole, the earphone cable part 200 returns to the original spiral shape due to its own characteristics. In this case, the earphone cable 200 is made of a synthetic resin, so that it returns to a helical shape only by its elasticity. However, in order to make it return more reliably, the earphone cable 200 is required. Is desirably made of a shape memory synthetic resin.

When such a shape memory resin is used, a spiral or coil shape memory process is applied to the smartphone cable 200 in advance. Will be kept.

Then, when the earphone cable portion 200 returns to the original spiral shape and is wound around the outer periphery of the fixed rod 400, the distal end side of the fixed rod 400 is connected to the ear mounting portion 300. When inserted into the cylinder part 300a and the projection part 300d is fitted into the concave groove 400a, the earphone cable part 200 force S, the solid rod in the contracted state It is held on the outer periphery of 400.

Also in the second embodiment configured as described above, since an electric signal like a general earphone is not used, no electromagnetic wave is generated from the earphone cable unit 200 and the ear mounting unit 300, and no sound wave is generated. Since earphones, which are the source of noise, are not inserted directly into the ear, shocking sound waves do not directly affect the ear.

Therefore, it is possible to eliminate any adverse effects of electromagnetic waves and shocking sound waves on the human body, especially on the brain. In addition, since it can be configured by combining simple parts, it can contribute to cost reduction.

Further, in the case of the present embodiment, by using the earphone speed YS that can be connected to the mobile phone P, it is possible to effectively eliminate the adverse effects of electromagnetic waves without changing the structure of the existing device.

Although the embodiments (modified embodiments) have been described in detail above, the present invention is not limited to such embodiments, and does not depart from the gist of the present invention in the detailed configuration, shape, quantity, material, and the like. You can arbitrarily change, add, or delete within the scope.

For example, in the embodiment, the mobile phone is shown as the mobile electronic device. However, the present invention can be applied to any mobile electronic device using an earphone such as a mobile radio and a mobile TV.

Further, although the embodiment has exemplified the detachable type in which the detachable portion 11 and the earphone detachable hole 21 are detachable, a fixed type that cannot be detached may be used, or the earphone cable may be connected to the sound output hole H of the existing mobile phone. One end 2a of 2 may be fixed with an adhesive or a band.

Furthermore, the earphone cable 2 may use a bellows-type hollow tube that can be freely bent, or if necessary, the inside of the mobile phone P or May be provided with an external storage section that can store the entire earphone 1 for mobile phones. Industrial applicability

Since the earphone for a portable electronic device according to the present invention does not use an electric signal like a general earphone, no electromagnetic wave is generated from the earphone cable portion and the ear attachment portion, and any adverse effect of the electromagnetic wave on the human body is eliminated. Can be performed effectively.

In addition, since it can be configured by combining simple parts, it can contribute to cost reduction, and can be used for accessories and straps, and can be used in a variety of ways.

Claims

The scope of the claims

1. A hollow tube-shaped earphone cable with one end facing the speaker of the portable electronic device;

An ear mounting part provided at the other end of the earphone cable part and communicating with the inside of the earphone cable part;

An earphone for a portable electronic device, wherein a duct for transmitting the generated sound of the speed force through the air is formed by the earphone cable portion and the ear mounting portion.

2. The earphone for a portable electronic device according to claim 1, wherein the earphone cable portion has a detachable portion that is detachably attached to the portable electronic device.

3. The earphone for a portable electronic device according to claim 1, wherein the earphone cable portion forms an accessory portion by being wound in a coil shape, and is also used as an accessory of the portable electronic device.

4. The earphone for a portable electronic device according to claim 1, wherein the earphone cable portion is also used as a strap of the portable electronic device.

5. The portable electronic device earphone according to claim 1, wherein the portable electronic device is a mobile phone.

6. The earphone for a portable electronic device according to claim 5, wherein the speaker has an earphone speed that is electrically connected to the mobile phone via a connection terminal.

7. The earphone for a portable electronic device according to claim 6, wherein the earphone cable section has a sound-collecting structure attaching / detaching section detachably fitted to the earphone speaker.

8. The earphone cable section is characterized in that, when not in use, the earphone cable section is spirally wound and installed on the outer peripheral side of a fixed port provided in the detachable section. An earphone for a portable electronic device according to the above.

9. The mobile phone according to claim 8, wherein the fixed rod is fitted and fixed to the ear mounting portion in a state where the earphone cable portion is spirally wound around an outer periphery. Earphones for electronic devices.

10. The fitting and fixing are performed by a concave groove provided on one of the ear mounting portion and the fixing rod, and a projection provided on the other of the ear mounting portion and the fixing mouth. 9. The earphone for a portable electronic device according to claim 8, wherein the earphone is adapted to be fitted with unevenness.

11. The portable electronic device according to any one of claims 1 to 10, wherein the earphone cable portion is made of a shape-memory synthetic resin whose shape is stored in a spiral shape or a coil shape. Device earphone _c