JPS587794Y2 - Cable horizontal overhead line support structure - Google Patents

Description

[Detailed description of the invention] The present invention relates to the provision of an advantageous support structure when horizontally laying cables, especially for temporary wiring at construction sites to supply power to electrical equipment such as lighting equipment and power tools. The purpose is to provide something effective for supporting cable wiring.

Conventionally, when a cable is installed horizontally, a clamp fitting is attached to the outer periphery of the cable sheath, and the clamp fitting is pulled with a rope to tension the cable and support it while correcting slack.

However, when tension is applied to the cable, the sheath surface is smooth and the sheath has an arbitrary thickness in the longitudinal direction, so the clamp fitting tends to slip, making it extremely difficult to securely hold a dog-sized cable or at long distances.

In addition, the clamp fitting generally uses a wedge body and a gripping fitting that fits into the wedge and tightens the entire thing, which has the disadvantage of increasing the number of man-hours and making the work on the overhead wire cumbersome.

The present invention has been developed in view of the current situation, and is a support that eliminates slippage between the cable and the metal fittings, allows the cable to be reliably supported horizontally at any position, and also allows for easy attachment of ordinary metal fittings. This is the structure.

This will be explained below with reference to the drawings.

1 to 3 show three embodiments of the main cable.

The cable 1 consists of a core wire (insulated wire core) 1a and a sheath 1b placed on the periphery thereof, and a branch portion 2 is provided at an arbitrary position in the longitudinal direction, and from this branch portion 2, it is connected to the core wire 1a. The branch lines t□ and t2 are drawn out and are used for connection to lighting equipment and the like.

In the longitudinal direction of the cable 1, there is a slanted bulge 10 (FIG. 1) or 2 that is integrated with the sheath 1b in advance.
A large number of 0 (FIG. 2) or 30 (FIG. 3) are provided at arbitrary intervals.

10 is a simple wedge shape, 20 is an ellipse shape, and 30 is a spindle shape, and the shape etc. may be arbitrary as long as it can provide an inclined surface.

A hook fitting 40 is provided corresponding to the slanted bulge portion integrated on the cable 1 side in this manner.

As shown in FIGS. 4 to 6, the fishing hook 40 includes a body 41 with a hook 43 having an opening at the bottom, a bottom cover 42 that is connected to the bottom opening of the body 41, and can be disassembled. This is a combination of the following.

That is, in order to set an opening, guide protrusions 41a and 41b each having a cross-sectional shape are formed facing each other at the bottom of the body part 41, and both side edges 42a of one bottom cover 42.

42b is formed with threshold grooves Da and Db into which the guide protrusions 41a and 41b fit, respectively, and the bottom cover 42 has guide protrusions 41a and 4l of the body 41 in the grooves Da and Db.
By inserting and fitting b, the two are made into one, and by pulling them out, the two are separated.

Furthermore, when the body part 41 and the bottom cover 42 are in a connected state, the substantially hollow cylindrical shape H that matches the outer diameter of the sheath 1b of the cable 1 is formed.
3.

H4, and the slanted bulge 30 is provided at the opening end on one side.
．． The enlarged opening ends H1°H2 conforming to 10.20 are formed.

The cable 1 and the fishing bracket 40 having such a configuration can be used to extend the cable 1 to a required length depending on the work site, and to attach it to any inclined surface near a support beam or structure as shown in FIGS. 4 and 5. A guide protrusion 4 is attached to the straight portion of the cable 1 near the attached bulging portion 30, 10°20 so as to sandwich the body portion 41 and the bottom portion 42.
1 a and 41b are inserted into the grooves Da and Db to integrate them, and one end of the tension wire 50 is hung on the hook 43 attached to the trunk 41, and the wire 50 is pulled in the direction of the arrow. By fixing 6 to a support beam or structure, the inclined part S of the bulging part 30 is pushed into the enlarged opening end H1tH2 where the fishing fitting 40 is combined, and the cable 1 is stretched to form a horizontal overhead line. It is.

In this way, the tensile force of the wire 50 is applied to the sheath 1b.
By mooring the fishing fitting 40 to the bulge 30 integrated with the cable 1, it acts on the sheath 1b of the cable 1, and the core wire 1
It places almost no burden on a.

In addition, when changing the mounting position of the fishing fitting 40, disassemble the fishing fitting 40 into the body part 41 and the bottom cover 42, select any bulging part 30, 10, 20 near the changed position and reassemble it. It can be moored.

As explained above, in the present invention, the mooring part of the metal fitting is obtained by the slanted bulge part that is integrated into the cable sheath in advance, so it is not necessary to apply the rust piece to the cable as in the conventional case. The cable can be securely moored without any slippage of the metal fittings against the cable, and the tension applied to the cable core can be reduced, so the overhead line can be safely installed without worrying about wire breakage.

In addition, such bulges are provided at arbitrary intervals in the longitudinal direction of the cable, and the fishing fitting is assembled and attached to any bulge as a combination of the body and the bottom cover. The cable can be easily supported at any position by adapting it to the situation, and there is no need to attach wedge pieces and connect the cable each time. It has the effect of being able to reduce the amount of water used.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention, Figures 1 to 3 are perspective views of three types of cable main lines, and Figure 4 is a cross section of the fishing hook according to the present invention to clarify the operating state of the main part of the device. FIG. 5 is a front view, FIG. 5 is a side view, and FIGS. 6a and 6b are exploded perspective views of the body and bottom cover of the fishing hook. 1... Trunk cable, 1a... Cable core wire, 1b... Cable sheath, 10, 20
．． 30...Three states of bulging part, 40...Fishing fittings, 41...Body part, 42...Bottom cover, 4
3...Hook, 50...Rope.

Claims (1)

[Scope of utility model registration request] Slanted bulges integrated with the sheath in advance are provided at arbitrary intervals in the longitudinal direction of a cable with a sheath applied to the cable core, while corresponding to the slanted bulges. , consists of a body part with a hook having an opening at the bottom and a bottom cover that is connected to the opening of the body part and can be disassembled freely, and the overall shape is approximately hollow cylindrical due to the connection of the body part and the bottom cover, with one side A fishing fitting is provided at the opening end to form an enlarged opening end that fits the slanted bulge, and the fishing fitting is fitted with the enlarged end facing any slanted bulge of the cable. Horizontal overhead line support structure for a cable, characterized in that the overhead line is supported while applying tension to the sheath of the cable by hanging a rope on a hook on the body and tensioning the overhead line.