JPS612460A - Rubber cup for acoustic coupler - Google Patents

Abstract

PURPOSE:To make it possible to set up a single rubber cup in a round or square transmitter/receiver by selecting the size of a socket part so that the 1st deformation part is expanded to the outside when the engaging part of the round transmitter/receiver is inserted into the socket part and the 2nd deformation part is expanded to the outside when the engaging part of the square transmitter/ receiver is inserted. CONSTITUTION:When the engaging part of the round transmitter/receiver is inserted into the socket part 11, the 1st deformation part 11a is expanded to the engaging part. On the other hand, the 2nd deformation part 11b is led into the inside by tensile force generated due to said expansion. Consequently, the inner periphery of the socket part 11 is pressed against the whole periphery of the engaging part of round transmitter/receiver, so that troubles such as sound leakage are not generated. When the engaging part of the square transmitter/receiver is inserted into the socket part 11, the 2nd deformation part 11b is expanded to said engaging part. On the other hand, the 1st deformation part 11a is led into the inside by tensile force generated due to the expansion. Consequently, the inner periphery of the socket part 11 is pressed against the whole periphery of the engaging part and efficient contact status is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rubber cup for an acoustic coupler that receives a handset such as a telephone set.

(Prior Art) As shown in FIG. 8, a handset 1 has a receiver section 2 and a transmitter section 3.
In order to hold the handset 1, the acoustic coupler 4 has a receiving part receptacle 5 into which the fitting part 2A of the receiving part 2 is inserted, and a fitting part 3A of the transmitting part 3. The inserted mouthpiece has a mouth part 6 . These sockets 5.6
is composed of a rubber cup so that it can be tightly fitted to the receiver part 3. A microphone is installed below the socket 5 (bottom of the rubber cup) to convert the audio input from the receiver 2 into an electrical signal, and a speaker is installed below the socket 6 (bottom of the rubber cup). It converts the electrical signal into audio and sends it to the transmitter.

By the way, the above-mentioned receiver part 2. Fitting portions 2A and 3△ of transmitting portion 3
There are not only round shapes but also square shapes, and the shapes of the sockets 5 and 6 that receive them are also round and square to match the fitting parts 2A and 3A.

(Problems to be Solved by the Invention) If you try to set a square handset into this conventional round socket, or conversely, if you try to set a round handset into a square socket, it will naturally not work. A mating condition could not be obtained, and normal signal transmission between the handset and the acoustic coupler could not be achieved.

For this reason, in the past, it was necessary to prepare an acoustic coupler with a round or square socket, that is, a rubber cup, depending on the type of handset.

The present invention has been made in view of this point, and its purpose is to
To provide a rubber cup for an acoustic cover, which allows round and square handsets to be set even though it is a single rubber cup.

(Means for Solving the Problems) The present invention, which solves the above-mentioned problems, provides a rubber cup for an acoustic coupler that receives a handset, which includes a first deformed portion and a second deformed portion in the socket portion. When the fitting part of the round handset is inserted into the socket, the first deformed part is pushed outward, the second deformed part is drawn inward by the expansion of the first deformed part, and When the fitting part of the rectangular handset is inserted, the second deformed part is pushed outward, and the first deformed part tends to be drawn inward by the expansion of the second deformed part. Then, the receiver (
It is characterized by the size of the professional club.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 to FIG. 7 are explanatory diagrams of one embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA and line BB of FIG. 3, which is a plan view. Also, Figure 4 is a right side view of Figure 3,
FIG. 5 is a rear view, FIG. 6 is an explanatory diagram of a set of round handsets, and FIG. 7 is an explanatory diagram of a set of square handsets. In these figures, reference numeral 11 denotes a socket, in which a substantially linear first deformed portion 11a and an arcuate second deformed portion 11b, which deform differently from each other when the handset is set, alternate in the circumferential direction. It is set in.

The first deformed portion 11a is designed so that when the fitting part of a round handset is inserted into the socket 11, the second deformed part 11b is expanded outwardly. When the fitting part of the square handset is inserted into 11,
Its size is chosen so that it can be pushed primarily outward. However, the size of this socket part 11 in its natural state corresponds to the shape of the handset as shown in FIGS. 6 and 7 (the broken line in FIGS. 6 and 7 is the shape of the fitting part of the handset). When written overlappingly, the second deformed portion 11b is located mainly outside the fitting portion of the round handset, and the first deformed portion 11a is located at the fitting portion of the rectangular handset. It also satisfies the condition that it is located mainly on the outside. In this embodiment, the socket portion 11 is formed by bending the open end of the rubber cup inward so that the first and second deformable portions 11a and 11b can be deformed flexibly. ing.

Furthermore, the wall thickness of the socket portion 11 formed by this bent portion is thinner than other portions.

Reference numeral 12 denotes an internal space of a portion of the rubber cup, in which a microphone is placed if it is a receiving part for a receiving part, and a speaker is placed if it is a receiving part for a speaking part. 13 is a flange, and the rubber cup is attached to the case of the acoustic coupler using the flange 13. Incidentally, the through hole 14 on the bottom surface of the rubber cup is a hole for inserting a lead wire.

According to such a configuration, when the fitting part of a round handset is inserted into the receiving part 11, the first deformed part 11a is inserted into the fitting part 11, as shown by the arrow in FIG. It is spread out in the middle of the day. On the other hand, the second deformed portion 11b is drawn inward by the tension generated by this expansion. Therefore, the inner circumferential surface of the socket part 11 is pressed against the entire circumference of the fitting part of the round handset, and problems such as sound leakage do not occur.

Further, when the fitting part of a rectangular handset is inserted into the receptacle part 11, the second deformed part 11b is pushed out into the fitting part as shown by the arrow in FIG. On the other hand, due to the tension generated by this expansion, the first deformed portion i1a
is drawn inward.

Therefore, as in the case of a round handset, the inner circumferential surface of the socket portion 11 is pressed against the entire circumference of the fitting portion of the handset, resulting in a good contact state.

In the above embodiment, the first deformed portion 11a is linear, and the second deformed portion 11b is arcuate, but the shape is not necessarily limited to this.

In short, it may have any shape as long as it can be deformed as described above.

(Effects of the Invention) As explained above, the present invention provides a rubber cup that can be fitted in a good tight state regardless of whether the shape of the fitting part of the handset is round or square. realizable.

[Brief explanation of drawings]

1 to 7 are detailed explanatory diagrams of the present invention, in which FIG. 1 is a sectional view taken along line AA in FIG. 3, and FIG. 2 is a sectional view taken along line BB in FIG. 3. Figure 3 is a plan view, Figure 4 is a right side view of Figure 3, and Figure 5 is a plan view.
The figure is a rear view of FIG. 3, FIG. 6 is an explanatory diagram of a set of round handsets, and FIG. 7 is an explanatory diagram of a set of square handsets,
FIG. 8 is an explanatory diagram of the combination of a handset and an acoustic coupler. 1... Handset/receiver 2... Receiving section 3... Sending section 2A, 3A... Fitting section 4... Acoustic coupler
5.6.11...Socket part 11a...First deformed part 11b...Second deformed part 12...Internal space 13...7 Lange 1 figure J￥2 figure 3 figure Ama figure 4 Atsushi 5 figure Ama 6 figure ↑ 1G Leather 7 figure Summary 8 figure

Claims (5)

[Claims] (1) A rubber cup for an acoustic coupler that receives a handset has a first deformed portion and a second deformed portion in the socket, and when the round fitting part of the handset is inserted into the socket, The first deformed part is pushed outward, the second deformed part is drawn inward by the expansion of the first deformed part, and when the fitting part of the rectangular handset is inserted, the second deformed part is pushed outward.
The size of the receptacle is selected so that the deformed part of the receptacle tends to be pushed outward and the first deformed part tends to be drawn inward by the expansion of the second deformed part. Rubber cup for acoustic coupler. (2) The rubber cup for an acoustic coupler as set forth in claim 1, wherein the open end of the cylinder is bent inward, and the bent portion is used as a mouth portion. (3) The rubber cup for an acoustic coupler according to claim 2, wherein the bent portion is formed thin. (4) The acoustic coupler according to claim 1, 2, or 3, characterized in that four first deformed portions and four second deformed portions are arranged alternately in the circumferential direction. rubber cup. (5) Claims 1, 2, and 3, characterized in that in a natural state, the first deformed portion is approximately linear, and the second deformed portion is approximately arcuate. Or a rubber cup for an acoustic coupler according to item 4.