JPS6095808A - Flat cable - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] This invention is for use in an undercarpet wiring system and costs 1 yen for a cable used in an undercarpet wiring system.

[Background technology pji] Conventionally, when wiring the 7-rat cable 1 on the floor as in No. J171, the upper and lower surfaces are covered with a metal top security sheet 2 and a resin bottom security sheet 3 that span the entire width, respectively. ing. However, when the top protection sheet 2 has a large area and a wide width, the elongation of both side edges is different, so that the top protection sheet 2 is often warped when laid, and the top protection sheet 2 is warped as shown in FIG. When the kneading is corrected to a straight state, swelling 2B occurs as shown in Fig. 3.

Also, flat cables with different numbers of poles, such as those with 3 conductors and 5 conductors, have different overall widths.
A top protection sheet that matches the overall width is required for each number of poles, making it impossible to standardize the top protection sheet.

Furthermore, since the flat cable and the top protection sheet are separate pieces and only partially fixed in the longitudinal direction,
The top protective sheet may shift and the side edges may warp, potentially damaging the flat cable insulation.

[Objective of the Invention] The 7-last cable of the present invention provides a tallat cable in which warping of the top protection sheet can be reduced and the top protection sheet can be used in common for flat cables with different numbers of poles. The purpose is to

[Disclosure of the invention]

In the flat cable of the present invention, a plurality of upper surface protection sheets are provided by removing only the areas corresponding to the respective flat conductors on the upper surface of the flat cable main body, and these are fixed and integrated with the flat cable main body.

An embodiment of this invention is shown in FIGS. 4 and 5.

In the figure, 4 is a flat cable main body, which consists of a plurality of flat metal conductors 5 made of copper or the like covered with an insulating coating 6 made of vinyl chloride or the like. The insulation coating 6 is provided with a connection hole 7. A strip-shaped lower surface protection sheet 8 having a width spanning the entire width is laid on the lower surface of the flat cable main body 4. The lower surface protection sheet 8 is made of electric wire grade vinyl chloride. 7
The upper surface of the last cable main body 4 is covered with an upper protective sheet 9 having a width slightly wider than each conductor 5.
These upper surface protective sheets 9 are fixedly integrated with the flat cable main body 4 with an adhesive sheet 10 having the same width as the seven rat cable main bodies 4 from above.

The upper surface protection sheet 9 is made of a metal sheet. Adhesive seal l-
Reference numeral 10 is an adhesive material, and is provided with ground holes which match the connection holes 7 of the flat cable main body 4.

To prevent electric shock, connect the γ-base conductor 5 at the center of the flat cable main body 4 and the central upper protective sheath +9 using a conventionally used ground connector 12 (-2 and connect the adhesive sheet 10 at the longitudinal end). (Peel off the top protective sheets 9 by hand to expose the ends of the three top protective sheets 9, overlap them, and caulk them with the connectors 13.) The folding tab 13 is a metal plate that is bent into two pieces, and has connection protrusions. It has been established. In addition, as shown in FIG. 6, the connector 14 has three bent pieces 14B,
The three top protection sheets 9 may be connected to each other while being stretched straight.

With this configuration, the width of the upper surface protection sheet 9 is narrow, which reduces warpage and reduces unevenness after construction. Further, even if the flat cable main body 4 has a different i number, the same "-" surface film-retaining sheet 9 can be used with only a different number, so that it can be made common. Furthermore, compared to the case where the upper surface protection sheet 9 covers the entire surface as in the past, the total area is smaller, resulting in material savings. In addition, since the upper surface retaining sheet 10 is fixed to the flat cable main body 4, it does not shift during construction, improving workability. Moreover, since there is no deviation, the coating 6f of the flat cable main body 4 will not be torn by the edge of the upper protective sheet 9.

FIG. 7 shows another embodiment. In this example, the top protection sheet 9 is fixed to the seven-rat cable main body 4 with a double-sided adhesive sheet 15. The rest is the same as the first embodiment.

〔Effect of the invention〕

The flat cable of the present invention has the effect that the upper surface protection sheet has less warpage, has good workability, and can use the same upper surface protection sheet for flat cables having different numbers of poles.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a conventional 7-rat cable laying structure, Figs. 2 and 3 are perspective views showing poor construction, Fig. 4 is a perspective view of an embodiment of the present invention, and Fig. 5 is a perspective view of a conventional 7-rat cable laying structure. FIG. 6 is a perspective view of a modified example of the earth connection, and FIG. 7 is a perspective view of another embodiment.

Claims (1)

[Claims] ・A large number of parallel cables ・) Semiconductor as an insulator A plurality of belt-shaped upper surface protection sheets are covered and fixed to the flat cable body, and the entire tank is λ7 Lasoto cable.