JPS5854808A - Method and device for supporting 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 The present invention relates to a method and apparatus for laying cables such as power cables and communication cables in vertical parts such as longitudinal shaft parts or in inclined parts.

When laying a cable on a vertical or sloped area, take into account the thermal expansion and contraction of the cable and its slipping. As shown in Figure 1, fix the inflection point of the snake with fixed creases 1 and 2. Was. However, when the snake pitch P is small, this fixing method may be used, but when the snake pitch becomes long, the snake shape collapses and deforms, which is not desirable in terms of cable performance.

In order to improve this drawback, as shown in Fig. 12, when the snake pitch Pz is long, a fixed cleat 2 is used at the inflection point of the snake, and a lateral sliding cleat is used at the peak or valley of the snake. A so-called sliding cleat 3 was provided to prevent the snake shape from collapsing.

As shown in FIGS. 1 to 8, an example of this sliding cleat 3 includes a pair of rectangular slide plates 5 each attached to the side surface of a split clamp 4, and installed on a support member 6 formed of an angle or the like. The upper and side surfaces of the slide plate 5 are held down by a presser plate 7 to such an extent that the slide plate 5 can be slid. In addition, 8
Numeral 9 denotes a tightening bolt for the split clamp 4, 9 denotes a fixture between the supporting members 6, and 10 denotes a cleat mounting bolt on the wall surface.

As shown by the dotted line in Fig. 12, such a sliding cable 1 can follow the movement in the lateral direction H when the cable installed in the snake expands and contracts due to heat, but it cannot follow the movement in the rotational direction R. Cannot follow movement. Therefore, there is no problem if the cleat has a correct snake shape at the peak or valley peak of the sine curve, but if the sine curve collapses or the pole shifts, a force in the rotational direction R will be applied, causing the upper and lower end surfaces of the cleat to be forced. There were disadvantages such as stress acting on the cable, causing damage to the cable, and deforming the slide plate or presser plate of the cleat. The present invention has been made to improve this drawback, and the gist thereof is to provide a cable support in which a pair of pins are provided on the side surfaces of a split clamp, and a cleat is attached so as to be rotatable and slidable using the pins as a fulcrum. A method and apparatus thereof.

The present invention will be explained in detail below. 4 to 6 show an embodiment of the present invention, and the same numerals as in FIGS. 1 to 3 refer to the same parts.

1 is a cable, 4 is a split clamp, 6 is a support member, 8
1 is a tightening bolt of the split clamp, 9 is a fixing metal fitting, ] 0 is a cleat mounting wall surface, 18 is a rotary sliding cleat of the present invention, and 15 is a pin, which is integrally provided on the side surface of the split clamp 4. Note that this pin 15 may be formed by providing a screw hole 16 in the side surface of the split clamp 4 as shown in FIG. 10, and screwing the pin 15 therein.

Reference numeral 17 denotes a holding plate, which is a flat band-shaped plate that holds down the second part of the pin 15. The end of the holding plate 17 is bent into an S-shape, and is provided with a suppression adjustment portion 18, and further provided with an adjustable stopper 19.

In this device, the cable can rotate and slide between the support member 6 and the presser plate 17 in accordance with the thermal behavior of each phase of the cable, so that the cleat does not become strained. Note that R indicates the rotational direction, and H indicates the behavior in the lateral direction.

7 to 9 show other embodiments of the present invention, which differ from the previous embodiments in the holding plate 27, the pressure adjustment section 18, and the adjustable stopper 19. Therefore, only this different point will be explained next. The presser plates 27 are approximately semicircular 28 spaced at regular intervals, and these portions press the pin 15 to the extent that it can rotate. And presser plate 2
7 connects each pin 15, so when the cable moves in the lateral direction H, the holding plate 27 slides, and each phase cable behaves in the same way.

The suppression adjustment part 18 is attached to the upper part of the S-shaped metal fitting 20 fixed to the end of the support member 6, and adjusts the pressing force by adjusting the length of this bolt. Further, an adjustable stopper 19 is provided on the side surface of the S-shaped fitting, and the length of this bolt is adjusted to prevent the holding plate 27 from moving beyond the allowable value. Note that the thermal behavior R in the rotational direction is performed separately for each phase.

5- As described above, in the cable supporting method and device according to the present invention, a pair of pins are provided on the side surface of the split clamp, and the cleat is attached so that it can rotate and slide using this pin as a fulcrum. It can move smoothly against thermal behavior while supporting it.

In addition, by providing approximately semicircular pin holders at regular intervals on the holding plate and connecting each pin so that the holding plate can slide, the snake shape can be maintained even when multiple cables are laid in a snake pattern. Multiple strips are the same and have a beautiful appearance.

The suppression adjustment section allows the strength of rotation and sliding to be adjusted, and the adjustable stopper has many excellent effects, such as preventing lateral movement of the cable beyond a certain tolerance.

[Brief explanation of the drawing]

Figures 1 to 3 show conventional examples, with Figure 1 being a front view and Figure 2 being a front view.
The figure is a plan view, Figure 3 is an enlarged view of section A in Figure 1, Figure 4 -
Fig. 6 shows an embodiment of the present invention, and Fig. 4 is a front view;
FIG. 5 is a plan view, and FIG. 6 is an enlarged view of section A in FIGS. 4 and 6. Figures 7 to 9 show other embodiments of the present invention, Figure 7 is a front view, Figure 8 is a plan view, Figure 9 is an enlarged view of section A in Figure 7, and Figure 10 is a view of the cleat. Plan views of other embodiments, FIGS. 11 and 12, are explanatory diagrams of snake laid cables. 4.-Divided clamp, 6.. Support member, 13.. Cleat, 15. Pin, 17.. Holding plate, 18..
Suppression adjustment section, 19 Stopper, 23... Cree-1.
, 27, presser plate, 28 semicircular part. 7- 71 Figure 73 Figure I 7 Figure 10 Figure left 11 Figure 12 Figure 34

Claims (5)

[Claims] (1) A method for supporting a cable, characterized in that a pair of pins is provided on the side surface of a split clamp, and a cleat is rotatably and slidably attached using the pin as a fulcrum. (2) A cable support device characterized in that a pair of pins are provided on the side surfaces of the split clamp, a support member is provided below the pins, and a presser plate is provided above the pins. (3) The cable supporting device according to claim 2, wherein the holding plate is a belt-shaped flat plate or a substantially semicircular plate spaced at regular intervals. (4) The cable support device according to claim 2 or 3, wherein the holding plate is provided with a suppression adjustment section at an end thereof. (5) The cable support device according to claim 2 or 8, wherein the holding plate is provided with an adjustable stopper at its end.