JPH0342766Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a telephone handset.

[Prior art]

In general, a telephone handset includes a housing that houses a microphone for transmitting and a speaker for receiving calls, and a housing that is stacked on top of the housing and removably connected to the housing by engaging ribs and grooves, etc. The microphone and speaker are connected to the telephone body by a lead wire. In addition, devices in which the housing and the lid are not completely joined together, but instead have a cap as a lid screwed onto each housing section for the microphone and speaker, are also widely used as general home telephones. There is.

However, these conventional handsets are not only complicated to assemble due to the large number of parts, but also require the microphone and speaker to be housed in a housing and then connected to them by lead wires inserted through holes in the housing. First, simultaneously fixing the microphone and positioning the lead wires made the assembly even more complicated.

[Summary of the idea]

The present invention was developed in view of the above points, and the parts are fixed together with the microphone by being clamped between the casing and the lid via a cord bush that holds the lead wires connected to the microphone and speaker. The present invention provides a handset that reduces the number of points and simplifies assembly work. below,
Embodiments of the present invention will be described in detail based on the drawings.

[Embodiment] Figs. 1 to 3 show an embodiment of the handset according to the present invention, Fig. 1 is an exploded perspective view thereof, Fig. 2a is a vertical sectional view thereof, and Fig. 2b is a second Fig. 2c is a plan view from A in Fig. 2a, Fig. 2c is a plan view from B in Fig. 2a, Fig. 3
The figure is an enlarged longitudinal cross-sectional view of the microphone side end of FIG. 2a. In these figures, a housing 1 is formed of hard synthetic resin in the shape of a vertically elongated box that opens upward, and a cylindrical speaker 4 is mounted on a ring 2 and a rib 3 that protrude into a deep hole at one end. The storage is fixed. Also, a ring 5 protruding from the other side of the housing 1
A microphone 7, also formed in a cylindrical shape, is fixed on the rib 6, and slits 8 and 9 for transmitting and receiving calls are formed in the housing 1, respectively.
A cord 10 whose one end is connected to the telephone main body (not shown) is branched into four lead wires 11 and connected to two each to a speaker 4 and a microphone 7, and the vicinity of the branch is made of hard synthetic resin. It is held by a cord bush 12 made of This cord bushing 12 has an L-shaped neck 12a into which the cord 10, which is an introduction part for the lead wire 11, is inserted, a base 12b continuous to this, and a guide groove for the lead wire 11 that protrudes from the base 12b. The base 12b has ribs 12d, 1 on both sides.
2e is provided protrudingly. On the other hand, the lid body 13 is
The housing 1 and the lid 13 are connected to each other by a set screw 16 screwed into bosses 14 and 15 protruding from the rear surface of the central part. It is fixed. The cord bush 12 has a neck portion 12a inserted and held in a U-shaped groove 17 provided at the microphone side end of the joint surface of the lid 13, and a pair of cord bushes protruding from the microphone 7 side end of the housing 1. The base 12b is held between the protrusions 18. Further, the arm 12c extends between the back surface of the lid 13 and the microphone 7, and by joining the housing 1 and the lid 13 and fixing them with a set screw 16, this arm 12c, in other words, The microphone 7 is held and fixed between the housing 1 and the lid 13 via the cord bush 12. Note that the cord bush 12 is connected to the ribs 12d, 12.
By engaging e with the jaw portion of the lid body 13, it is prevented from coming off to the outside.

On the other hand, the speaker 4 is firmly fixed by interposing a disc-shaped cushion 19 between the housing 1 and the lid 13 and joining and fixing the housing 1 and the lid 13. 19a is a groove for matching the dimensions of the speaker 4, and 19b is a groove for inserting the lead wire 11 to prevent it from breaking. Further, a rib 20 protruding from the entrance of the deep hole of the casing 1 engages with a recess formed in the lid 13 to prevent the casing 1 and the lid 13 from coming apart.

To assemble the handset configured as described above, the cord 10 is inserted and held in the cord bush 12 outside the housing 1, and then the lead wire 11 is connected to the speaker 4 and the microphone 7. Then, this is housed in the housing 1, the speaker 4 and the microphone 7 are held by the rings 2, 5 and the ribs 3, 6, the cord bush 12 is held by the protrusion 18, and the cushion 19 is placed on the speaker 4.
Place. After this, the lid 13 is stacked on the housing 1, but in this case, the neck 12a of the cord bush 12 is held in the U-shaped groove 17 of the lid 1, and the neck is pulled outward to form the ribs 12d, 12e.
is engaged with the jaw portion of the lid body 13. When the set screw 16 is tightened, the lid 13 and the housing 1 are firmly connected, and the speaker 4 is attached to the cushion 1.
9 is clamped and fixed between the lid body 13 and the housing 1. Also, at this time, the arm 12 of the code bush 12
c extends between the lid 13 and the microphone 7, the microphone 7 can be firmly connected to the lid 13 and the housing 1 through the cord bushing 12 by these members. be held in place.

In this embodiment, the present invention is applied to microphone 7.
An example is shown in which the housing body is divided into the lid body 13 and the housing 1. The present invention can be similarly applied to a structure in which a cap-like lid body is provided and joined to the microphone housing part and the microphone housing part.

[Effect of idea]

As is clear from the above explanation, in the present invention, the microphone is held and fixed between the casing and the lid via the cord bushing that holds the lead wires connected to the microphone and speaker in the handset. This configuration reduces the number of parts and simplifies the structure compared to the conventional method, and after housing the microphone and speaker wired outside the housing inside the housing, the cord bushing and microphone can be connected while joining the lid. Since the microphone can be firmly fixed, there is no need to simultaneously fix the microphone and position the lead wire, which greatly simplifies the assembly work.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the handset according to the present invention, FIG. 1 is an exploded perspective view thereof, FIG. 2 a is a vertical sectional view, and FIG. 2 b is an A of FIG. The view plan view, Fig. 2c is the B view plan view of Fig. 2a, Fig. 3
The figure is an enlarged sectional view of the microphone side end of FIG. 2a. 1... Housing, 4... Speaker, 7... Microphone, 10... Cord, 11... Lead wire, 12
...Code bushing, 12a...Neck, 12c...
...Arm, 13...Lid, 16...Set screw, 17...
U-shaped groove.

Claims (1)

[Scope of utility model registration request] A handset and receiver comprising a housing housing a microphone and a speaker at both ends, and a lid removably connected to an opening of the housing, including a cord bushing for holding a lead wire connected to the microphone and the speaker. A handset/receiver characterized in that the microphone is sandwiched and fixed between the housing and the lid body.