JPH0467712A - Laying method of leakage coaxial cable - Google Patents

Abstract

PURPOSE:To lay a leakage coaxial cable at low cost by covering the leakage coaxial cable along a wall surface with a fixing band along the longitudinal direction of the cable and fixing both edge sections in the cross direction of the fixing band on the wall surface at a fixed interval in the longitudinal direction by clamps. CONSTITUTION:A leakage coaxial cable 1 is drawn along the wall surface 7 of concrete, etc., the upper section of the cable 1 is covered with a plastic fixing band 8 having elasticity along the longitudinal direction, and both edge sections in the cross direction of the fixing band 8 are fastened on the wall surface 7 at regular intervals in the longitudinal direction by clamps 9 such as screws. Consequently, air pressure from a train, etc., is interrupted by the fixing band 8, and the leakage coaxial cable 1 is not deflected, deformed and vibrated by air pressure, thus preventing the fatigue of the material of the leakage coaxial cable. The clamps such as the screws may be used as a fixing means fixing the fixing band to the wall surface, and the cost of said clamp is made lower than that of a hanging supporting type fixture, thus reducing the cost of laying.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of laying a leaky coaxial cable.

[Prior Art] Conventionally, a leaky coaxial cable has been installed by fixing it to a wall or the like using hanging support type fixtures at predetermined intervals in its longitudinal direction.

In the case of hanging support type fixtures, the longer the support interval, the more the leakage coaxial cable will be deflected due to external forces (wind pressure, vibrations) from, for example, trains3, so the support interval is as short as several meters.

[Problem to be solved by the invention] However, if a leaky coaxial cable is installed by fixing it with a hanging support type fixture, the support interval must be shortened as described above, so the hanging support type This increases the number of fixing devices used, and the hanging support type of fixing devices are expensive, so there is a problem in that the cost of installing the leaky coaxial cable becomes high.

An object of the present invention is to provide a method for installing a leaky coaxial cable that can be installed at low cost.

[Means for Solving the Problems] To explain in detail the present invention for achieving the above object, the leaky coaxial cable installation method according to the present invention includes fixing plastic fixings to the leaky coaxial cable along the wall surface. A special feature characterized in that a band is placed over the fixed band along its longitudinal direction, and both edges in the width direction of the fixed band are fixed to the wall surface at predetermined intervals in the longitudinal direction using a tightening tool. Then, the leaky coaxial cable is covered with a fixing band along its length, and the fixing band is fixed to the wall with screws or other tools at appropriate intervals.
The leaky coaxial cable may bend and deform due to the wind pressure of the train,
It can prevent vibration. Further, the fixing belt can be fixed to the wall surface by using a screw or other tool, and the cost of the tightening tool is lower than that of a hanging support type fixing device, so that the installation cost can be reduced.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

As shown in the figure, in the leaky coaxial cable 1 of this embodiment, an outer conductor 4 is coaxially provided on the outer periphery of a center conductor 2 via an insulator 3 made of cordel such as polyethylene, and the outer conductor 4 has a slot 5. are provided at predetermined intervals, and an outer sheath 6 made of polyethylene or the like is provided around the outer periphery of the outer conductor 4.

The leaky coaxial cable 1 extends along a wall surface 7 such as concrete, and is covered with an elastic fixing band 8 made of plastic along the longitudinal direction, and both edges of the fixing band 8 in the width direction are are fixed to the wall surface 7 at predetermined intervals in the longitudinal direction using tools 9 using screws or the like.

When laid in this manner, the wind pressure from trains etc. is blocked by the fixing band 8, and the leaky coaxial cable 1 will not bend or vibrate due to wind pressure.

[Effects of the Invention] As explained above, in the method for laying a leaky coaxial cable according to the present invention, the leaky coaxial cable is covered with a fixing band, and both widthwise edges of the fixing band are attached to the wall at predetermined intervals in the longitudinal direction. Since it is fastened with a tool, the wind pressure from trains, etc. can be blocked by the fixing band, and the leaky coaxial cable can be prevented from bending and deforming due to wind pressure or vibrating. Material fatigue can be prevented. In addition, as a fixing means for fixing the fixing band to the wall surface, a tool such as a screw may be used, and the cost of the tightening tool is lower than that of a hanging support type fixing device, which reduces the installation cost. There are advantages.

[Brief explanation of drawings]

The drawing is a perspective view showing an example of a leaky coaxial cable installed by the leaky coaxial cable installation method according to the present invention. 1...Leaky coaxial cable, 2...Center conductor, 3...
・Insulator, 4...Outer conductor, 5...Slot, 6...
...Outer cover, 7...Wall surface, 8...Fixing band, 9...Tightening tool. Agent: Hidetoshi Matsumoto, patent attorney) °゛. So

Claims (1)

[Claims] A plastic fixing band is placed over the leaky coaxial cable along the wall in its longitudinal direction, and both widthwise edges of the fixing band are fixed to the wall at predetermined intervals in the longitudinal direction using fasteners. Features a leaky coaxial cable installation method.