JP4231490B2 - Telephone handset - Google Patents

Description

  The present invention relates to a telephone handset, and more specifically, to a telephone handset for connecting to a telephone body and performing bone conduction reception using a bone conduction speaker. It relates to what is used for replacement.

  Most telephone handsets use dynamic speakers or ceramic speakers as speakers and electret microphones as microphones. If such a telephone handset is replaced with one using a bone conduction speaker in consideration of use by a hearing impaired person, use under noise, etc., the speaker output is insufficient and only a small sound can be produced.

  Therefore, in order to replace only the handset of the telephone and perform sufficient bone conduction reception, an amplifier for driving the bone conduction speaker is required, and further, a power source for driving the amplifier is required. However, since it is not possible to take out enough power to drive the amplifier from the phone body, it can be considered to use a battery built-in type, but in this case, the weight of the handset increases, making it unsuitable for use. End up.

  In addition, when only the handset is replaced for an existing telephone so that bone conduction can be received, the size and shape of the handset placement portion are not uniform depending on the model of the telephone, so that there is a risk of lack of versatility.

  When attempting to incorporate a bone conduction speaker into a telephone handset, there are problems as described above. Therefore, the present invention does not have such a problem, that is, the same feeling as a conventional telephone handset. It is an object of the present invention to provide a telephone handset that can be used at low cost and can perform bone conduction reception at low cost, and can be used by replacing an existing telephone regardless of the model.

The invention according to claim 1 for solving the above-mentioned problem is a telephone handset using a bone conduction speaker as a speaker, which can be replaced with an existing telephone, and a casing having a mouthpiece and a mouthpiece, A microphone installed in the mouthpiece, a bone conduction speaker installed in an exposed state in the earpiece, an amplifier disposed in the casing and connected to the bone conduction speaker, and a jack of the telephone body A connection cord connected to the microphone and the amplifier , and a power connection cord connecting the amplifier and the AC adapter, and having different dimensions and shapes of the handset placement unit in order to enable adjustment of the length of the handset to correspond to a plurality of types of said telephone, said bone conduction speaker, against the earpiece, said Ke It is the phone for a handset device according to claim which is movably disposed in the longitudinal direction of the sequencing.

In a preferred embodiment, the bone conduction speaker is made spherically movable at the earpiece.

  The power connection cord has a DC jack into which a DC plug of an AC adapter can be inserted, or the power connection cord has an AC adapter attached to the tip.

  In the casing, an on / off switch for the power source for driving the amplifier can be installed. In this case, the on / off switch is turned on by lifting the handset from the telephone body and placed on the telephone body. By doing so, it is possible to perform a cutting operation.

  The present invention is as described above, and the telephone handset according to the present invention can be used in the same sense as a general handset without any sense of incongruity. It can be used by changing only that, and there is an effect that bone conduction reception can be realized easily at low cost.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1 and 2 show an embodiment of a telephone handset according to the present invention. A casing 1 of a telephone handset according to the present invention has a mouthpiece 2 which is generally used as a telephone handset. And the earpiece 3.

  Although not shown, a microphone is installed in the mouthpiece 2. A bone conduction speaker 4 is installed in the earpiece 3, and an amplifier 5 built in the casing 1 is connected to the bone conduction speaker 4. The bone conduction speaker 4 is placed in an exposed state at the earpiece 3 of the casing 1 and is slidable in the length direction of the casing 1 and / or attached to the earpiece 3 so as to be capable of spherical movement.

A connection cord 6 similar to the conventional one is connected to the microphone and the amplifier 5 , and a connection cord 7 different from the connection cord 6 is further connected to the amplifier 5. It is preferable that the outer portions of the casings 1 of the two connection cords 6 and 7 are twisted together so as not to fall apart or accommodated in one tube 8. The inner part of the casing 1 and the outer part of the casing 1 of each connection cord 6, 7 are connected via a modular jack provided on the lower bottom surface of the casing 1.

A telephone connector 9 that can be plugged into a jack 16 (see FIG. 2) of the telephone main body 15 is connected to the rear end of the connection cord 6 on the microphone and amplifier 5 side. A DC jack 10 into which a DC plug of an AC adapter (not shown) can be inserted is connected (FIG. 1).

  In this case, the telephone cord 9 side of the connection cord 6 and the DC jack 10 side of the power connection cord 7 are inserted with a jack 16 installed at an appropriate location of the telephone body 15 and a DC plug of an AC adapter. For ease, each tube 8 is exposed for a suitable length.

  In the embodiment shown in FIG. 2, the power connection cord 7 is extended, and the AC adapter 11 is directly attached to the tip thereof.

  As described above, in the telephone handset device according to the present invention, the bone conduction speaker 4 is installed in the earpiece 3 of the casing 1 so as to be exposed, and is slidable in the length direction of the casing 1, and / or Alternatively, it is attached to the earpiece 3 so as to be capable of spherical movement.

  In order to be slidable in the length direction, a slit is formed in the bone conduction speaker 4 installation surface of the earpiece 3, and the constricted portion of the neck-like support portion 13 of the bone conduction speaker 4 can be slid along the slit. do it. In order to enable spherical movement, a locking hole is formed in the surface of the earpiece 3 where the bone conduction speaker 4 is installed, and the neck support portion 13 of the bone conduction speaker 4 can be rockably locked there. That's fine.

  By configuring as described above, it becomes possible to change the length of the handset and the angle of the head contact surface of the bone conduction speaker 4, and thus the size and shape of the handset placement portion are different. It can be used for multiple types of telephones.

  In using the handset according to the present invention, the telephone connector 9 is inserted into the jack 16 of the telephone main body 15, and the DC plug of the AC adapter is inserted into the DC jack 10. A power source for driving the amplifier 5 is obtained from an AC adapter. When the AC adapter 11 is directly attached to the power connection cord 7, the AC adapter 11 is inserted into a household power outlet. Thus, the earpiece 3 can be brought into pressure contact with the ear or the periphery thereof, and the others can be used in the same manner as a general handset. That is, the user can perform a reception call by bone conduction by holding the transmitter / receiver in his hand and placing the earpiece 3 on the ear or the periphery of the ear.

  Furthermore, as an additional function, an on / off switch 12 for the power source for driving the amplifier can be installed in the casing 1 (FIG. 1). As the on / off switch 12, for example, it is installed so as to protrude from the casing 1 in a state of being urged by a spring, and by picking up the handset from the telephone body 15, it protrudes by the action of the spring and is switched on. When the amplifier is turned on and lowered onto the handset placement unit, it can be pushed and buried in the casing 1 to be switched off.

  Although the present invention has been described in some detail with respect to its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention, the invention being defined by the appended claims. It is not restricted to the specific embodiment other than limiting in.

It is a side view of one embodiment of a telephone handset according to the present invention. It is a perspective view of other embodiments of a telephone handset according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Casing 2 Mouthpiece 3 Earpiece 4 Bone conduction speaker 5 Amplifier 6 Connection cord 7 Power supply connection cord 8 Tube 9 Telephone connector 10 DC jack 11 AC adapter 12 On / off switch 15 Telephone main body 16 Jack

Claims (5)

A telephone handset that uses a bone conduction speaker as a speaker that can be replaced with an existing telephone,
A casing having a mouthpiece and a mouthpiece, a microphone installed in the mouthpiece, a bone conduction speaker installed in an exposed state in the earpiece, and a bone conduction speaker disposed in the casing includes a amplifier connected, a connection cord connected to the microphone and the amplifier include a telephone connector that can be plugged into the jack on the telephone body, and a power connection cord for connecting the said amplifier and the AC adapter Consisting of
For in correspondence to the handset every unit said telephone dimensions or plural kinds of different shapes of allowing adjusting the length of the handset and the bone conduction speaker, against the earpiece, the length of the casing A telephone transmission / reception apparatus characterized in that it is installed so as to be movable in a direction. The telephone transmission / reception apparatus according to claim 1 , wherein the bone conduction speaker is capable of spherical movement at the earpiece.   The telephone handset according to claim 1, wherein the power connection cord has a DC jack into which a DC plug of an AC adapter can be inserted.   The telephone handset according to claim 1, wherein the power supply connection cord has an AC adapter attached to a tip thereof.   2. The telephone handset according to claim 1, wherein an on / off switch for the power source for driving the amplifier is installed in the casing.

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