JPS631490Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an acoustic coupling device for transmitting signals by acoustically coupling a data communication modem and a communication line via a handset of a telephone, and particularly relates to an acoustic coupling device for transmitting signals by acoustically coupling a data communication modem and a communication line via a telephone handset. The present invention relates to an acoustic coupling device that can be commonly used for handsets and receivers.

In this type of acoustic coupling device, an earpiece receiver with a built-in microphone and a mouthpiece receiver with a built-in speaker are provided on the upper side of the housing. It is configured to transmit and receive signals.

By the way, the shape of handsets and receivers generally differs depending on the type of phone, such as the angle of the surface where the earpiece and mouthpiece contact each receiver, and the length of the arm between the earpiece and the mouthpiece. It is formed.

Therefore, in order to properly connect the handsets and receivers of these various telephones to the receiver of the acoustic coupling device, it is necessary to
It was necessary to prepare dedicated acoustic coupling devices for each type of telephone.

In addition, if the acoustic coupling device is to be used in common with a variety of telephones, the receiver of the acoustic coupling device should be made of a soft elastic material, and its shape should be shaped to match the shape of the handset with a high degree of freedom. Ta. However, this acoustic coupling device has drawbacks such as high manufacturing costs due to the special structure of the receiver, and insufficient versatility for different types of telephones.

For this reason, conventional acoustic couplers of this type are disclosed in Japanese Patent Publication No. 52-26644, Japanese Patent Publication No. 52-26843,
As shown in Japanese Patent Publication No. 52-26966, Japanese Patent Publication No. 52-37926, Japanese Patent Publication No. 53-44085, etc., acoustic coupling devices configured to be commonly used in various telephones have been proposed. However, all of these systems maintain a structure in which each receiving part of the handset is mechanically supported by a special structure, which results in a complex structure, a large number of assembly steps, and an increase in the size of the device. There was a problem.

The present invention was developed in consideration of these circumstances, and has a simple structure that can be applied to various telephones with different angles of inclination between the earpiece surface and the mouthpiece surface, and the length of the arm between the mouthpiece and the earpiece. The present invention provides an acoustic coupling device that can be used commonly for both. Hereinafter, the configuration and the like will be explained in detail by referring to embodiments shown in the drawings.

The figure shows an embodiment of the acoustic coupling device according to the present invention, and this embodiment shows a state in which a commonly used 600-type telephone handset is coupled.

In the figure, 1 is a housing, 2 is a first flap to which the earpiece receiver 3 is fixed, and 4 is a second flap to which the mouthpiece receiver 5 is fixed. The earpiece receiver 3 and the mouthpiece receiver 5 are made of a highly elastic material such as rubber. Speakers 7 are each loaded. Each of these flappers 2 and 4 is connected to the inner part of the handset 30,
That is, it is rotatably supported by a pivot 8 at an intermediate position between the mouthpiece and the earpiece. This pivot 8 is supported on the inner wall of the opening of the housing 1 by a fixing means (not shown). The position of this pivot 8 and the fixing position of each receiving part 3, 5 to the flapper 2, 4 are based on the distance between the earpiece and the mouthpiece of the handset of various telephones, which is the longest and the shortest. It is set at the optimum position determined from manufacturing and structural considerations, taking into consideration the difference and the angle formed between the earpiece surface and the mouthpiece surface. Further, spring receivers 9 and 10 are provided upright on the lower surfaces of the first flapper 2 and the second flapper 4 near the pivot shaft 8, respectively, and between the spring receivers 9 and 10, both flappers 2, 4 in the recovery direction (the first flapper 2 in the direction of arrow Y, the second flapper 4 in the direction of arrow X). On the other hand, locking step portions 12 and 13 are formed at the rotating ends of the first flapper 2 and the second flapper 4. Reference numerals 14 and 15 indicate stays that are provided on the lower side of the housing 1 and are curved along the rotating direction of the flappers 2 and 4, and upper stoppers 16 and 17 are provided at the upper ends of the stays, respectively, and stays are provided at the lower ends of the stays. Lower stoppers 18 and 19 are provided in a protruding manner to restrict the range of rotation of both flappers 2 and 4. Note that 20 is a holding member made of a spring material for holding the handset of the telephone on the acoustic coupling device, and its base end is fixed on the housing 1. Note that the figure shows the state in which the handset 30 is placed, and therefore the first flapper 2 and the second flapper 4 are shown bent in a F-shape with the pivot 8 at the apex. , when the handset 30 is removed, the locking stepped portion 1 is moved by the biasing force of the spring 11.
The flaps 2 and 13 are restored until they are locked with the upper stoppers 16 and 17, so that both flappers 2 and 4 are located on the same plane as the housing 1.

Next, when using an acoustic coupling device, the handset 30 is placed on each receiver 3, 5 on the first and second flappers 2, 4 as shown in the figure, and the I resisted and called 2 on the handset,
4, and hold the holding member 2 at the position where the earpiece and mouthpiece are pressed onto each receiver 3, 5.
0 holds the handset 30 on the receivers 3 and 5. In this case, each of the receiving parts 3 and 5 is rotatably supported by the flappers 2 and 4 around the pivot 8, so that the receiver parts 3 and 5 correspond to the angle formed between the earpiece and the mouthpiece of the handset 30. and then rotate to ensure a good and correct connection. On the other hand, the difference in distance between the earpiece and the mouthpiece is absorbed by the movement of the upper surfaces of the respective receivers 3 and 5, but if the areas of the receivers 3 and 5 are made sufficiently large, There are almost no problems due to misalignment. Therefore, sound insulation can be achieved reliably without electrical signals leaking from the coupling portion or external noise being mixed in, and the handset and receiver are acoustically coupled to the acoustic coupling device.

As described above, the acoustic coupling device according to the present invention can be used when the angles formed between the earpiece surface and the mouthpiece surface of the handset are different, or when there are variations in the distance between the earpiece and the mouthpiece, or when the length of the arm of the handset is Even if the angles and lengths are different, the angular difference, length, etc. are absorbed by the rotation of the receiving parts 3 and 5 about the pivot shaft 8.

When the use of the acoustic coupling device is finished, when the holding by the pressing spring 20 is released and the handset 30 is lifted from above each receiver 3, 5, each flapper 2, 4 is moved by the biasing force of the spring 11. It rotates in the direction of arrow Y and the direction of arrow X, respectively, and returns to its original state until it is stopped by each upper stopper 16, 17, and is held at a position where it is flush with the upper surface of the housing 1.

Although this embodiment shows a structure in which both the flappers 2 and 4 are pivoted at one location, a structure in which the pivot positions of the flappers 2 and 4 are spaced apart and pivoted separately may be used.

As explained above, according to the present invention, a pair of receivers to which the mouthpiece and earpiece of the handset are acoustically coupled are arranged on the first and second flaps that are rotatably supported. In addition, the following effects can be expected with an extremely simple structure in which a spring is provided to bias these flappers in the restoration direction.

(1) It can be commonly used for handsets and receivers of various telephones with different shapes, and these handsets can be tightly connected to each receiver in the correct state, and the manufacturing cost is low.

(2) Furthermore, when the acoustic coupling device is not in use, each receiving portion is located on the same plane as the housing, so the appearance is good.

[Brief explanation of the drawing]

The figure is a longitudinal sectional view showing an embodiment of the acoustic coupling device according to the present invention. 2...First flapper, 3...Earpiece receiver, 4
... Second flapper, 5 ... Mouthpiece receiver, 8 ...
Pivot, 11... Spring, 20... Holding member,
30...Telephone receiver.

Claims (1)

[Scope of utility model registration request] In an acoustic coupling device for acoustically coupling a mouthpiece and an earpiece of a handset to a mouthpiece receiver and an earpiece receiver by pressure contacting the mouthpiece receiver and the earpiece, respectively, the first flapper includes the mouthpiece receiver. and a second flapper having an earpiece receiver, rotatably supported on the inner side of the handset, and a spring is provided for biasing the first and second flappers in opposite directions, respectively; An acoustic coupling device characterized in that a holding member is provided for holding the back of the handset that is loaded against the biasing force of the spring.