JPH047617Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a cable fixture for simply and firmly fixing a cable to a cable rack sub-girder.

[Conventional technology]

Generally, power cables, low voltage trunk cables,
Examples of methods for fixing light power main cables and the like to cable racks include those shown in FIGS. 6 and 7.

In the figure, 1 is the above-mentioned cable, and 2 is a cable rack sub-girder having a lip channel steel (hereinafter abbreviated as C-beam) shaped cross section. 3 is a flexible cable band made of plastic or the like, and is composed of a band portion 3a and a hook portion 3b.The band portion 3a has a rack 3c, and the hook portion 3b has a
As shown in FIG. 7, the band portion 3a inserted into the hook portion 3b in the direction of arrow It has become impossible to turn back. The cable 1 is usually connected to the cable 2 as shown in FIG.
It is fixed to the cable rack sub-girder 2 by a cable band 3 in a sashing manner.

[Problem that the invention attempts to solve]

However, in this conventional fixing method, the cable is tied and fixed to the cable rack child girder using cable bands, so both ends of the cable band in the width direction are attached to the cable rack. Problems include problems such as the phenomenon of the cable sheath being wedged in when it comes into contact with the child girders and cables, which has an adverse effect, and the fixing force being weak due to the small and poor adhesion of the band portion to the cables and cable rack child girders. The point was hot.

This idea was created by focusing on the problems of the conventional cables, and aims to solve the above problems by creating a cable fixing device consisting of a holder and a cable band installed inside the cable rack child girder. The purpose is

[Means for solving problems]

This invention consists of a holder installed in the hollow part of a cable rack sub-girder having a C-shaped steel cross section, and a cable band that fixes the cable to the cable rack sub-girder by integrally binding the holder and the cable. The holder has a width smaller than the opening of the cable rack sub-girder, and a length larger than the width and smaller than the internal height of the cable rack sub-girder. To provide a cable fixture in which at least a pair of diagonal corners are corner cut, and the distance between the pair of corner cut surfaces is set smaller than the inner height dimension of the cable rack child girder.

[Effect]

First, the holder is installed in the hollow part of the cable rack child girder, and then the holder and the cable are tied together with a cable band, whereby the cable is fixed to the cable rack child girder. Furthermore, since the cable band does not bind the outer periphery of the cable rack slave girder, the cable band and the cable have good adhesion, and therefore the cable holding power of the cable band is increased.

The holder is installed by inserting the holder into the hollow part through the opening of the cable rack sub-girder with the longitudinal direction of the holder facing the longitudinal direction of the cable rack sub-spar, and then rotating the holder so that the longitudinal direction of the holder faces the longitudinal direction of the cable rack sub-spar. turn to At this time, since the holder is formed with a corner corner face diagonally, it can be turned smoothly, and therefore, the holder is installed in the hollow part of the child girder with its longitudinal direction facing the vertical direction.

〔Example〕

This invention will be explained below based on the drawings. 1 to 4 are diagrams showing an embodiment of this invention.
Note that the same parts as in the conventional example are given the same reference numerals, and redundant explanation will be omitted.

In the figure, 2a indicates the hollow part of the cable rack sub-spar (hereinafter referred to as sub-spar) 2, d indicates the width of the opening of the sub-spar 2, and D indicates the inner height of the sub-spar 2.

A holder 5 is made of resin such as nylon in this embodiment. Reference numeral 6 denotes pressure contact surfaces formed at both longitudinal ends of the holder 5, and A indicates the distance between the two pressure contact surfaces, that is, the length dimension of the holder 5. Further, this dimension A is formed to be approximately equal to the inner height dimension D of the child spar 2, but when the holder 5 is installed into the hollow part 2a, the pressure contact surfaces 6, 6 of the holder are 2 so that they are inscribed in a fit-to-fit relationship of a sliding fit or static fit in the height direction. 7 is a protrusion of the holder 5, the length C of which is approximately equal to the width d of the opening of the child beam 2, and the relationship between c and d is the same as the fit relationship between A and D. are set similarly. B is the width dimension of the holder 5, and the above d
The holder 5 is formed slightly smaller so that the holder 5 can be inserted into the hollow portion 2a.

Reference numeral 8 denotes an elongated hole provided in the protrusion 7, into which the tip of a driver-like tool (not shown) is inserted when installing the holder 5 into the hollow part 2a of the child beam 2. Hold the holder 5 and insert it into the hollow part 2a while holding it, and then move the tool in the direction of the arrow Y.
By rotating the holder 5 in the direction of
When the holder 5 is rotated, the pressure contact surfaces 6, 6 of the holder 5 are inscribed in the child beam 2 in a sliding or static state in the height direction thereof. The reason why one end of the pressure contact surface 6 is rounded and the rounded surface 6a is formed into a curved surface is to facilitate the rotation of the holder 5.

Reference numeral 7a denotes a press-contact surface of the protrusion 7, and when the holder 5 is attached to the sub-spar 2 as described above, this press-contact surface contacts the lip 2b of the sub-spar 2 in a sliding or static state.

Note that the pressure contact surfaces 6 and 7a may be dimensioned so that they do not come into pressure contact with these opposing surfaces of the child beam 2, but face each other with a gap.

As described above, after attaching the holder 5 to the child beam 2, the band portion 3a of the cable band 3 is attached to the hollow portion 2.
1 and 2, the band portion 3a that has been inserted is further inserted into the hook portion 3b to integrally bind the holder 5 and the cable 1.

Then, as shown in FIG. 7, the tied cable band 3 firmly holds the cable 1 to the child beam 2 without loosening because the rack 3c is hooked by the claw 3d.

Note that the holder 5 has legs 5a and 5b protruding from the bottom on the opposite side of the protrusion 7 to form a space between the legs 5a and 5b, so that the holder 5 does not fit into the opening in the child beam 2. Even when the cable band 3 is located on the far side, a space for passing the cable band 3 is secured.

[Effect of idea]

As explained above, according to this invention, the structure is achieved by integrally binding the holder installed in the hollow part of the cable rack slave girder having a lip channel steel cross section, and the holder and the cable. The cable fixing device consists of a cable band that fixes the cable to the cable rack child girder.
Unlike the conventional cable band, both ends of the cable band in the width direction do not get wedged in the cable, and the cable band has good adhesion to the cable, so the cable holding force is strong. Further, the width of the holder is set to be smaller than the opening of the cable rack sub-girder, the length is set to be larger than the width and smaller than the inner height of the cable rack sub-girder, and Since the diagonal corners are cut off and the distance between these cut-off surfaces is set smaller than the internal height dimension of the cable rack sub-girder, the holder is inserted into the internal space from the opening of the cable rack sub-girder. Since mounting of the holder is completed by simply turning the holder, the work is simple and reliable, and the workability is good, which also has the effect of reducing construction costs.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a side view of FIG. 1 with a partial cross section, FIG. 3 is a top view of the holder, and FIG. 4 is a front view of FIG. 3. Figure 5 is a side view of Figure 3, Figure 6 is a front view of the conventional example, and Figure 7 is a side view of Figure 3.
The figure is a sectional view showing the action of the cable band. 1... Cable, 2... Cable rack child girder,
3... Cable band, 5... Holder.

Claims (1)

[Scope of utility model registration request] It consists of a holder installed into the hollow part of the cable rack sub-girder having a rip-channel steel cross section, and a cable band that fixes the cable to the cable rack sub-girder by integrally binding the holder and the cable. , the width of the holder is set to be smaller than the opening of the cable rack sub-girder, and the length is set to be larger than the width and smaller than the inner height of the cable rack sub-girder. and further comprising at least one pair of diagonal corners with corner corners, and the distance between the pair of corner corner surfaces is set to be smaller than the inner height dimension of the cable rack child girder.