JPH01303004A - Laying method for under-carpet cable - Google Patents

Abstract

PURPOSE:To improve the reliability, by folding the opposite end sections of a first protective sheet upward and contacting tightly with the opposite side sections of a second protective sheet. CONSTITUTION:A protective sheet 14 is arranged on a floor face 5 and a cable body 3 is laid in the vicinity of the upper central section thereof, than a metal protection board 6 is applied on the cable body 3. The opposite side sections of the protective sheet 14 are then folder to cover the upper opposite side sections and the opposite side sections of the metal protection board 6 are adhered through an adhesive tape 7 to the floor face 5 such that the folded section of the protective sheet 14 is covered. By such arrangement, intrusion of foreign matter such as a pebble into the enclosed structure due to tear up of the adhesive tape 7 can be prevented while furthermore intrusion of outer air (moisture) can be blocked because of high degree enclosure, resulting in the improvement of durability and moisture resistance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for laying an undercarpet cable with excellent durability and moisture resistance.

[Conventional technology] In recent years, with the rapid introduction of electronic equipment in offices, etc., underground cables are being used to connect the power supply of these devices and connect devices between devices, as they are easy to install, relocate and add wiring, and have excellent aesthetic effects. Carpet cables are often used.

Conventionally, such undercarpet cables have been laid using the construction method shown in FIGS. 3 and 4.

An undercarpet cable (not shown in Figures 3 and 4) is a cable in which a plurality of rectangular conductors 1, 1.1 are arranged in parallel at predetermined intervals, and a flat insulating sheath 2 is provided around the outer periphery of these conductors. A main body 3, a first protective sheet (hereinafter referred to as "protective sheet") 4 made of polyvinyl chloride etc. arranged on a floor surface 5, and a first protective sheet 4 arranged on this cable main body 3,
The cable main body 3 is sandwiched between the protection sheet 4 and a metal protection plate 6 serving as a second protection sheet that protects the cable main body 3 from mechanical shock.

As shown in FIGS. 3 and 4, the undercarpet cable constructed in this way is constructed by disposing a protective sheet 4 on the floor surface 5 and extending the cable body 3 in the center thereof. A metal protection plate 6 is placed over the cable body 3, and the cable body '3 is sandwiched between the protection sheet 4 and the metal protection plate 6. Both sides of the metal protection plate 6 and the protection sheet 4 are shown in FIG. The cable is sealed with an adhesive tape 7.7 and laid so as to prevent dust from entering the contact surface between the cable body 3 and each protection plate 4.6.

[Problems to be Solved by the Invention] However, in the above-mentioned undercarpet cable laying method, as shown in FIG. There was an inconvenience in that "dust" such as pebbles 8 could easily get into the space between the two and the cable main body 3 could be easily damaged. Furthermore, in the conventional installation method, both sides of each protection plate 4.6 were sealed with adhesive tape 7, so the degree of sealing was weak, and moisture could enter the sealed structure from the floor surface 5, etc. There is a high risk that "sahi J" etc. will occur on the inside of the metal protection plate 6, which will damage the cable body 3, and there is also a drawback that the insulation resistance of the metal protection plate 6 will decrease due to oxidation, making it difficult to maintain durability and moisture resistance. was there.

[Object of the Invention] It is an object of the present invention to solve the problems of the above-mentioned conventional examples and to provide a highly reliable undercarpet cable installation method.

[Means for solving the problem] Therefore, the present invention provides a first protective sheet on the floor surface of the cable installation location, and then a flat sheet on the first protective sheet in the length direction. After extending the shaped cable body,
The cable main body is covered with a second protective sheet having a width narrower than the width of the first protective sheet, and then both sides of the first protective sheet are folded upward to cover both sides of the second protective sheet. Adopting a construction method in which it is placed in close contact with the upper part,
This aims to achieve the above objective.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2.

Here, the same weights are given to the same components as in the above conventional example.

In Fig. 1, reference numeral 3 indicates a plurality of rectangular conductors 1, 1゜1 arranged in parallel at predetermined intervals, and an insulating coating 2 on the outer periphery of these conductors.
6 indicates a metal protection plate having a function of protecting the cable body 3, and these are constructed and function in the same manner as in the above-mentioned conventional example.

Further, numeral 14 indicates a highly waterproof protective sheet made of polyvinyl chloride or the like, which is constructed in substantially the same manner as the conventional example. It has a width that allows both sides to be folded back onto both sides of the metal protection plate 6 (see FIG. 2).

As shown in FIGS. 1 and 2, the undercarpeller 1 to cable configured in this way is constructed by disposing a protective sheet 14 on the floor surface 5, and extending the cable body 3 near the center of the upper part of the protective sheet 14. After that, attach the metal protection plate 6 to cover the cable body 3.
Then, the both sides of the protection sheet 14 are folded back to cover the tops of both sides of the metal protection plate 6, and then the both sides of the metal protection plate 6 and the floor 5 are covered with the protection sheet 14. Adhere with adhesive tape to cover the folded part. In this case, the folded portion of the protective sheet 14 folded over the metal protective plate 6 may be adhered to the metal protective plate 6 using an adhesive or the like to strengthen the sealing degree. Further, in this embodiment, the metal protection plate 6 and the floor surface 5 are bonded together with the adhesive tape 7, but a structure may be adopted in which the protection sheet 14 and the floor surface 5 are bonded and fixed with an adhesive or the like.

Since this repair example is configured as described above, even if the adhesive tape 7 were torn, it would be possible to prevent "garbage" such as pebbles from entering the inside of the sealed structure, and in addition, the strong seal would prevent outside air from entering. It is possible to provide a method for laying an anchor car peller 1 to a cable that can block the intrusion of (moisture) and has excellent durability and moisture resistance.

``Effects of the Invention'' The present invention lays undercarpet cables using the above-mentioned installation method, so it can be replaced with the conventional method. It is possible.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional configuration diagram showing the installation procedure of an undercarpet cable according to an embodiment of the present invention, FIG. 2 is a cross-sectional configuration diagram showing the installation state of the undercarpet cable according to an embodiment of the present invention, Figure 3 is a cross-sectional configuration diagram showing the procedure for laying an undercarpet cable according to a conventional example;
Fig. 4 is a cross-sectional configuration diagram showing the conventional anchor car propeller 1 - cable laying state, and Fig. 5 is a cross-sectional configuration diagram showing the conventional anchor car propeller 1 - cable laying method without drawbacks. . ■・・・・・・Flat conductor 3・・・・・・Cable body 5・・・・・・Floor surface 6・・・・・・As a second protective sheet Metal protection plate 7・・・・・・Adhesive tape

Claims (1)

[Claims] A first protective sheet is placed on the floor surface of the cable installation location, and then a flat cable body is extended along the length direction on this first protective sheet. It is covered with a second protective sheet having a width narrower than the width of the first protective sheet, and then both sides of the first protective sheet are folded upward and tightly attached to both sides of the second protective sheet. This is an undercarpet cable installation method that is characterized by: