JPS6329320Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an acoustic coupling device for acoustic coupling through a telephone handset in data communications equipment.

Generally, in this type of acoustic coupling device, as shown in FIG. 1, a transmitter receiving member 4 and a receiver receiving member 5 corresponding to a transmitter 2 and a receiver 3 of a telephone 1 are mounted on a housing 6 at a predetermined interval. It is kept well maintained. A speaker (not shown) is placed on one side of the receiver 4 for the receiver, and a receiver 5 for the receiver 5 is mounted on the other side.
A microphone is provided on the side, and the transmitter 2
The handset 3 is attached to a transmitter receiving member 4 and a handset receiving member 5, respectively, so that audio signals can be transmitted and received.

However, the handsets 2 and 3 of the telephone 1 are provided with the mouthpiece 2a and the earpiece 3a protruding from the grip part 7 so as to be inclined in the direction in which they face each other. The receiving members 4 and 5 are attached to the housing 6 with the mouthpiece socket 4a and the mouthpiece socket 5a being inclined in the direction away from each other. When inserting the handset 2, 5 into the handset 4a, 5a of the handset 2, 5,
The peripheral surface of the side where 3 are close to each other is the mouthpiece socket 4
In some cases, it may be difficult to attach the holes 5a and 5a by abutting against the walls of the holes. Furthermore, even if it is possible to install the device, the coupling between these devices is often insufficient, resulting in the inconvenience that external noise is mixed in during signal transmission and the transmission quality is degraded.

The present invention was developed in view of the above circumstances, and includes providing play between the circumferential surface of the receiving member for the handset and the hole wall surface of the opening, and also providing play between the circumferential surface of the receiving member and the hole wall surface of the opening. To provide a structure for mounting a receiving member for a handset of an acoustic coupling device, which allows the handset and handset of a telephone to be easily and reliably mounted by using an extremely simple structure in which a spring piece is interposed to bias the phone inward. . Hereinafter, the configuration and the like will be explained in detail by referring to embodiments shown in the drawings.

FIG. 2 is an exploded perspective view of the acoustic coupling device according to the present invention, FIG. 3 is a cross-sectional view showing the structure for attaching the receiver to the handset of the acoustic coupling device, and FIG. 4 and FIG. - cross section of figure, -
FIG. In these figures, the reference numeral 11 denotes a casing that can be opened and closed, and consists of a lid plate 14 having a pair of openings 12 and 13 opened upward, and a bottom plate 15 on which the lid plate 14 is covered. It is equipped with a speaker, a microphone, etc. (not shown) inside. Reference numeral 16 denotes a cylindrical transmitter receiving member integrally formed of a flexible material such as rubber, which has an annular groove 17 on the outside and a transmitter (not shown) for the transmitter on the inside. A cup-shaped recess 18 is provided with a size that allows an airtight fit. Further, an annular holding piece 19 facing into the housing 11 is provided at the lower part of the transmitter receiving member 16, and a locking piece provided on the cover plate 14 is provided on the circumferential surface of this annular holding piece 19. A positioning notch 21 that engages with the protrusion 20 is provided in the outer diameter direction.
The transmitter receiving member 16 is attached to the cover plate 14 near the opening 12 by fitting the groove wall 17a of the annular groove 17. Reference numeral 22 denotes the peripheral surface of the transmitter receiving member 16, that is, the groove bottom surface 17 of the annular groove 17.
By forming b to have a smaller diameter than the wall surface of the opening 12, the groove bottom surface 17b and the opening 1 facing the groove bottom surface 17b are formed.
This is the play provided between the hole wall surface of No. 2 and the hole wall surface of No. 2. 23
It is a square-shaped spring piece whose both ends are fitted into the groove bottom surface 17b, and is interposed within the play 22, that is, between the circumferential surface of the transmitter receiving member 16 and the hole wall surface of the opening 12, The receiver member 16 for the transmitter is biased inward, that is, toward the receiver member for the receiver, which will be described later. 24
1 is a cylindrical receiver member integrally formed of a flexible material similar to the transmitter receiver member 16, and has an annular groove 25 on the outside and a receiver member (not shown) on the inside. A recess 26 is provided that is sized to allow the handset to fit airtightly therein. Also,
An annular holding piece 27 facing into the housing 11 is provided at the lower part of the receiver member 24 for the receiver, and a locking protrusion 28 provided on the cover plate 14 is attached to the circumferential surface of the annular holding piece 27. Engaging positioning notch 29
is provided in the outer diameter direction. The receiver member 24 is attached to the cover plate 14 near the opening 13 by fitting the groove wall 25a of the annular groove 25. 30 connects the peripheral surface of the handset receiving member 24, that is, the groove bottom surface 25b of the annular groove 25 to the opening 1.
3 By forming the diameter smaller than the hole wall surface, the groove bottom surface 2
This is the play provided between the opening 5b and the hole wall surface of the opening 13 that it faces. Reference numeral 31 denotes a square-shaped spring piece, whose both ends are fitted into the groove bottom surface 25b, and is interposed within the play 30, that is, between the circumferential surface of the receiver member 24 and the hole wall surface of the opening 13; The receiver member 24 is biased inward, that is, toward the receiver member 16 side. 32 is the housing 11
This is a concave portion facing inward and is integrally provided with the bottom plate 15. A hole 33 is bored in the center of the bottom 32a of this concave portion 32, and a protrusion 34 is formed around this hole 33.
is provided. Reference numeral 35 denotes a seat member integrally formed of synthetic resin, which includes a leg portion 36 that supports the housing 11, and a seat member 35 that is connected to the leg portion 36 and that is connected to the hole 33.
It consists of two locking parts 37 that are engaged with the bottom 3.
It is attached to the cover plate 15 with a compression spring 38 interposed between the leg portion 2a and the leg portion 36. A flexible member 39 such as rubber is attached to the bottom of the leg portion 36, and an elastically deformable locking portion 37 has a hook-shaped tip to prevent the seat member 35 from coming off from the housing 11. are doing. Note that 40 and 41 are insertion notches formed in the hole wall surfaces of the openings 12 and 13, respectively, and the annular holding piece 1 is inserted through these notches 40 and 41 when attaching the transmitter and receiver receiver members 16 and 24, respectively.
9 and 27 are inserted.

Therefore, according to the acoustic coupling device of the present invention,
The recesses 18, 26 of both receiving members 16, 24 are moved appropriately in the radial direction.
A handset can be attached to the.

In addition, in this embodiment, the plays 22, 30 and the spring pieces 23, 31 are sent, and the receiver member 16,
24 side is shown, but it may be provided on either side of the receiving member 16 or 24.

As explained above, according to the present invention, play is provided between the circumferential surface of the handset receiving member and the hole wall surface of the opening, and a spring piece is interposed to bias the receiving member inward. The distance between the handset receiving members can be appropriately adjusted within a certain dimension, and the handset can be easily and reliably attached to the handset receiving member. Therefore, unlike in the prior art, external noise is not mixed in due to insufficient attachment of the handset, so voice signals can be transmitted without deteriorating transmission quality. Further, the practical effects are extremely large, such as being able to absorb dimensional errors in the opening diameter of the housing and facilitating manufacturing. Furthermore, since only one spring piece is required to bias the receiving member, the work of attaching the spring piece to the annular groove can be easily performed, and costs can be reduced. Furthermore, since the spring piece is interposed between the groove bottom surface of the annular groove and the hole wall surface of the opening, it is possible to eliminate the negative effect on appearance of the spring piece being visible from the outside.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing how a handset is attached to a conventional acoustic coupling device, Fig. 2 is an exploded perspective view of the acoustic coupling device according to the present invention, and Fig. 3 is a telephone receiver of the same acoustic coupling device. 4 and 5 are sectional views showing the receiving member mounting structure, respectively. 11... Housing, 12, 13... Opening, 16...
...Telephone receiver member, 22...Play, 23...Spring piece, 24...Handset receiver member, 30...Play,
31...Spring piece.

Claims (1)

[Scope of utility model registration request] In an acoustic coupling device comprising a transmitter receiving member and a handset receiving member that fit and hold a transmitter and a receiver, respectively, and a casing to which these receiving members are attached and having an opening, A play is provided between the groove bottom surface of the annular groove formed on the circumferential surface of at least one of the receiving members and the hole wall surface of the opening that the groove bottom surface faces, and between the groove bottom surface and the hole wall surface. An acoustic coupling device characterized in that a spring piece is interposed between the receiving member and the receiving member to urge the receiving member inward.