JPS645411Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a cord drawer structure suitable for implementation in a home telephone or the like.

[Prior art]

Generally speaking, when the telephone cord that connects the telephone and indoor wiring is pulled in the axial direction of a telephone, the force acts on the connection inside the case and causes the solder to peel off. It is fixed inside the housing with a suitable fixture to protect the connection from external forces. However, protection using such fixtures requires manufacturing the fixture separately from the casing and fixing it with set screws, etc.
Not only was this work troublesome, there was a risk that the screws would come loose, and the telephone string could not be completely protected.

[Summary of the idea]

The present invention has been made in view of the above-mentioned points, and includes an annular cord detouring rib erected on the bottom surface of the casing, and the cord passing upward from the rib is stored and placed inside the casing. The extremely simple structure of using a printed circuit board to protect the cord from external forces reliably protects the cord from external forces, and provides a cord pull-out structure that does not require an increase in the number of parts and allows the cord to be pulled out simply and easily. be.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

Fig. 1 is a perspective view of the telephone seen from below, showing an embodiment of the cord drawer structure according to the present invention applied to a home telephone; Figs. 2 and 3 are exploded perspective views and longitudinal cross-sections of the same structure; It is a diagram. In these figures, the in-home telephone, designated as a whole by 1, is
It has a telephone housing 2, a handset 3, a push-button dial (not shown), etc., and is installed on a tabletop or a wall, and this home telephone 1 is connected to indoor wiring via a telephone cord 4.

The telephone housing 2 includes a shallow box-shaped lower housing 2A with an open top, and an upper housing 2 that is integrally connected to the lower housing 2A and covers the upper opening of the housing 2A.
Two cord extraction holes 6 and 7 are formed in the lower housing 2A in close proximity to each other. One cord extraction hole 6 is used when the home telephone 1 is installed on a tabletop, and is formed in the lower part of the back plate 8 of the lower housing 2A. The other cord extraction hole 7 is used when installing the home telephone 1 on a wall, and is formed in the bottom plate 9 of the lower housing 2A. The bottom plate 9
A ring-shaped cord bypass rib 10 is integrally provided on the upper surface of the cord pull-out hole 7 to project from the center.

The cord detouring rib 10 is formed concentrically with a substantially C-shaped inner rib 10A that opens in the direction of the cord extraction hole 6 of the back plate 8, and the outer side of this inner rib 10A. 8 and outer ribs 10B located on both sides of the cord pull-out hole 6. The groove formed by the inner rib 10A and the outer rib 10B has a groove width approximately equal to the outer diameter of the telephone string 4, and provides a detour 1 for detouring the string 4.
1.

Reference numeral 12 denotes a printed circuit board that is housed in the lower casing 2A in parallel with the bottom plate 9 thereof, and a wiring pattern of a telephone circuit is formed on this printed circuit board 12 by a well-known printed wiring method. Various electrical components 13 such as resistors and capacitors are mounted. The printed circuit board 12 is connected to the bottom plate 9.
It is held and fixed by a plurality of mounting tables 14 and elastic engagement pieces 15 protruding from the upper peripheral edge of the . The mounting base 14 and the elastic engagement piece 15 are provided as a pair, and the mounting base 14 is formed to be the same height as or slightly higher than the cord detouring rib 10. The elastic engagement piece 15 has a substantially triangular engagement portion 15a integrally provided on the inner surface of the tip thereof;
The engaging portion 15a is configured to engage with an edge of the upper surface of the printed circuit board 12 placed on the mounting table 14. Then, when the printed circuit board 12 is held and fixed by the mounting table 14 and the elastic engagement piece 15 and stored in the lower housing 2A, the cord detouring rib 10 is inserted into the printed circuit board 1.
covered by 2.

The telephone string 4 is inserted into the bypass path 11 from above, and one end thereof is connected to the printed circuit board 12.
The substrate 1 is removed from the notch 17 formed on the rear edge.
2 and is connected to the terminal of the printed circuit board 12 by soldering, and the other end is led out of the case from either one of the two cord extraction holes 6 and 7, and is connected to the indoor wiring. It is connected.

Thus, according to the cord drawer structure having such a configuration, since the telephone cord 4 is detoured and locked by the detour path 11, it is possible to completely eliminate misalignment in the axial direction, and the printed circuit board 12 It is possible to prevent peeling of solder, poor contact, etc. at the terminal portion of the terminal. In this case, if the interval between the opening ends of the inner ribs 10A is narrowed as much as possible, the bending angle of the telephone cord 4 bent at one end edge and guided to the bypass path 11 will be increased, so that the cord 4 can be held more securely. Alternatively, the width of the detour 11 may be made slightly smaller than the outer diameter of the telephone string 4, and the string 4 may be press-fitted by utilizing the elastic deformation of the outer cover.

In addition, since the telephone cord 4 only needs to be inserted into the detour path 11, the work is extremely simple, and no set screws or the like are required.
Since it is formed integrally with the lower housing 2A, the number of parts does not increase.

Furthermore, the printed circuit board 12 prevents the telephone cord 4 from slipping out above the detour 11.

Although the above embodiment has been described with reference to the case where it is applied to a telephone cord for a home telephone, the present invention is not limited to this, and it goes without saying that the present invention can be implemented as it is as a cord drawer structure for various electrical devices.

[Effect of idea]

As explained above, in the cord drawer structure according to the present invention, an annular cord detouring rib is integrally provided on the inner bottom surface of the casing to detour the cord, and the cord is stored in the casing parallel to the inner bottom surface. A printed circuit board prevents the cord from coming off upward, and one end of the cord passing through the rib is guided to the upper surface side of the circuit board through a notch provided in the printed circuit board, and the other end is connected to the housing. Since it is configured to lead out to the outside through a cord extraction hole provided in the body, it completely prevents the cord from shifting, protects it from external forces, and prevents accidents such as peeling of solder and poor contact at the terminals. can. In addition, the structure is simplified, and the cord pulling operation can be performed simply and easily, and the number of parts is not increased, so assembly is easy, and the practical effects thereof are very large.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a telephone seen from below, showing an embodiment of the cord drawer structure according to the present invention applied to a telephone cord of a home telephone, and Figs. 2 and 3 are exploded perspective views of the same structure. and a cross-sectional view. 1...Home telephone, 2...Telephone housing, 2A...
...lower casing, 2B...upper casing, 4...telephone string, 6, 7...cord pull-out hole, 10...cord bypass rib, 11...detour, 12...printed circuit board, 17... ...Notch part.

Claims (1)

[Scope of utility model registration request] An annular cord detouring rib is provided on the inner bottom surface of the casing, and a cord extraction hole is provided near this rib, and a cord is provided inside the casing to allow the cord to escape upwardly via the cord detouring rib. This is prevented by a printed circuit board that is housed parallel to the bottom surface, and one end of the cord is guided above the circuit board through a notch provided in the printed circuit board, and the other end is inserted through the cord extraction hole into the housing. A cord drawer structure characterized by being led out of the body.