JPH0377704B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] The sounding body of the handset and the sounding source of the sounder are composed of the same sounding body, and the resonance cavity of the sounder is placed in the front chamber of the earpiece with the handset and the transmitter set. to provide a highly distinguishable sounder sound.

[Industrial application field]

The present invention relates to a sounder structure for a communication device.

In communication equipment, especially in mobile phones, car phones, etc. that require small size and light weight, it is necessary to be able to reliably distinguish ring tones, alarm sounds, and other sounders from other noises even in noisy outdoor environments. requested.

[Prior Art] FIG. 2 is a perspective view of a conventional mobile phone equipped with a sounder mechanism, in which an earpiece 4 is provided at one end of a flat plate portion of a slender prismatic housing body 1, and an earpiece 4 is provided at the other end. An elongated rectangular plate-shaped cover portion 2 is provided which is foldable via a connecting shaft 3.

A mouthpiece 6 is provided at an end of the cover part 2 opposite to the earpiece 4 in correspondence with the earpiece 4 when the cover part 2 is opened about the connecting shaft 3 . Further, a dial key 5 is disposed on the same plane plate portion of the housing body 1 on the side where the earpiece 4 is provided.

Then, when a call is in progress, the cover part 2 is opened with the connecting shaft 3 as the axis, and forms a dogleg shape with the housing body 1.
Using the earpiece 4 with the earpiece 4 against the ear and the mouthpiece 6 with the mouth is similar to other so-called handset-type telephones in which all telephone functions are housed in a handset-type housing.

By folding this type of telephone in half in the direction in which the earpiece 4 and the mouthpiece 6 come into contact with each other, the earpiece 4, dial key 5, and mouthpiece 6 can be protected, and at the same time, the phone can be easily stored in a pocket or the like. It is a convenient phone that can be made into a portable shape.

This portable telephone is folded in half when not in use. Therefore, as a mechanism for emitting sounder sounds such as ringing sounds and alarm sounds, a sound hole is provided on the flat side of the housing body 1 opposite to the dial key 5, that is, on the outer surface when folded. A sounder resonance cavity 7 and a sound source 8 are provided in communication with the sound hole.

Since the sounder resonance cavity 7 is provided in this way, the sounder sound resonates at a desired frequency.
Therefore, highly distinguishable sounder sounds can be emitted with low power consumption.

[Problem that the invention seeks to solve]

However, in the conventional sounder structure described above, the sounding body of the handset and the sounding source 8 of the sounder are separate, making the structure complicated, and the sounder resonance cavity 7 is provided inside the housing body 1. There was a problem in that the internal mounting space of 1 was reduced, and miniaturization of the device was prevented.

[Means for solving problems]

According to the present invention, the above-mentioned problems can be solved by the present invention, in which the earpiece-side and mouthpiece-side casings are folded via the connecting shaft and the receiver and the transmitter are disposed facing each other when not making a call. The sound source of the sounder is the same sounding body, and the earpiece and mouthpiece are
They are each provided with a recess to form a front chamber of the earpiece and a front chamber of the mouthpiece, and when the handset and the transmitter are placed facing each other, the peripheries of the front chamber of the earpiece and the front chamber of the mouthpiece come into close contact, forming a resonance cavity. The present invention is solved by a sounder structure of a communication device, which is characterized in that a sound hole for transmitting sounder sound to the outside is provided on the outer surface of the front chamber of either the earpiece or the mouthpiece.

[Effect]

According to the structure of the present invention shown in FIG.
The sounding body 11 of the sounder 0 and the sounding source of the sounder are the same sounding body, and the sounding body 11 of the sounder
When the receiver 10 and the microphone 12 as a transmitter are set, the mouthpiece front chamber 16 on the transmitter side facing the earpiece and the earpiece front chamber 14 of the receiver 10 are
Since a resonant cavity for the sounder sound is formed, the sounding body 11 of the receiver 10 with a low sound pressure level can be shared as a sounder sound source, promoting miniaturization of the device and making it possible to transmit a highly distinguishable sounder sound. .

〔Example〕

The present invention will be specifically explained below with reference to illustrated examples. Note that the same code indicates the same object throughout the country.

FIG. 1 is a side sectional view of one embodiment of the present invention, in which a receiver 10 is provided at one end of a flat plate portion of a thin and elongated rectangular prism-shaped receiver side housing 1A, and a receiver 10 is provided at the other end via a connecting shaft 3. A housing 2 on the transmitter side is provided in the form of an elongated rectangular plate that is foldable.

The receiver 10 includes a sounding body 11 made of a diaphragm that is common to the sounding source of the sounder, and an earpiece front chamber 14 of a desired shape is provided on the open side of the sounding body 11.

On the other hand, with the connecting shaft 3 as the axis, the housing 2 on the transmitter side
In the opened state, a recessed mouthpiece front chamber 16 is provided at the end of the housing 2 on the side of the transmitter opposite to the receiver 10, corresponding to the earpiece front chamber 14. A microphone 12 is provided on the bottom of the mouthpiece front chamber 16 to form a transmitter.

The periphery of the mouthpiece front chamber 16 is formed so as to be in close contact with the periphery of the earpiece front chamber 14 when the housing 2 on the transmitter side is folded, so that the mouthpiece front chamber 14 and the mouthpiece A cavity is formed with the front chamber 16. This cavity is a resonant cavity that resonates at the desired frequency of the sounder.

Further, a sound hole 13 is provided in the wall of the mouthpiece front chamber 16 for communicating the resonance cavity with the outside and transmitting the sounder sound to the outside when the housing 2 on the side of the transmitter is folded.

As described above, since the sounding body 11 of the handset 10 and the sounding source of the sounder are made of the same sounding body, the structure of the housing 1A on the handset side is simple and compact.

In addition, a housing 1A on the receiver side and a housing 2 on the transmitter side
When folded, the earpiece front chamber 14 and the mouthpiece front chamber 16 form a resonance cavity of the sounder, so that the sounding body 11 of the earpiece 10 has a low sound pressure level.
Therefore, it is possible to transmit a highly distinguishable sounder sound. Furthermore, since no resonance cavity is formed within the housing body, it is easy to make the housing 1A on the receiver side small and thin.

〔Effect of the invention〕

As explained above, the present invention configures the sounding body of the receiver and the sounding source of the sounder with the same sounding body,
In addition, a resonance cavity is configured on the front chamber side of the earpiece.
It is possible to emit a highly distinguishable sounder sound without installing a dedicated sounder, has a simple structure, and has excellent practical effects such as the ability to make the casing small, lightweight, and thin. There is.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of one embodiment of the present invention, and FIG. 2 is a perspective view of a telephone equipped with a conventional sounder mechanism. In the figure, 1 is the housing body, 1A is the housing on the receiver side, 2 is the cover part or the housing on the transmitter side, 4 is the earpiece, 5 is the dial key, 6 is the mouthpiece, and 8 is the sound source. , 7 is a sounder resonance cavity, 10 is a receiver, 1
1 is a sounding body, 12 is a microphone, 14 is a front chamber of the earpiece,
16 indicates a mouthpiece front chamber.

Claims (1)

[Claims] 1 When not talking, the earpiece side and mouthpiece side casings are folded via the connecting shaft, and in a configuration in which the receiver and the transmitter are placed facing each other, the sounding body of the receiver and the sounding source of the sounder are the same. Recesses are provided in the sounding body, the earpiece, and the mouthpiece, respectively.
A front chamber of the earpiece and a front chamber of the mouthpiece are formed, and when the receiver and the transmitter are arranged facing each other, the peripheries of the front chamber of the earpiece and the front chamber of the mouthpiece are in close contact with each other, forming a resonant cavity, and the earpiece or A sounder structure for a communication device characterized in that a sound hole for transmitting sounder sound to the outside is provided on the outer surface of one of the front chambers of a mouthpiece.