JPH0124003B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for attaching a cable hanger and a cable hanger used therefor.

To attach a cable to a utility pole, first stretch a messenger wire between the poles, suspend a number of pulleys from the messenger wire, use the pulleys to carry the cable to a predetermined position below the wire, and then A method was adopted in which a cable hanger was fixed between the wire and the cable, and the cable was suspended from the wire.

The cable hanger does not just have to hang the cable; it also needs to be firmly fixed in place on the messenger wire so that it does not move over the wire. For this reason, in the past, cable hangers were manually fixed one by one onto the messenger wire.

A conventional cable hanger is, for example, as shown in FIG. The cable hanger a in FIG. 2 is made by bending a highly elastic steel wire, and fixes the cable b to the messenger wire c. The fixing mechanism is such that wire fixing parts e and f are centrally symmetrically provided at both ends of a cable accommodating part d which has a twisted U-shape, and the wire c is passed through the fixing parts e and f. e
The hanger a was fixed onto the wire c by the elasticity caused by the twisting between the wires and f. Cable b was passed through the cable housing portion of hanger a, which was thus fixed.

However, when fixing the cable hanger a, the messenger wire c has already been strung between utility poles and is in a high place, so it is a cumbersome task to fix the cable hanger a one by one by hand. It was also dangerous work. Therefore, there was a need to further simplify the cable installation. This invention was created in response to this need.

This invention uses a novel cable hanger, which is first movably attached to the messenger wire, and by pulling the cable hanger down at a desired position, the cable hanger is fixed on the wire. The principle is to reach the following.

Cable hanger 10 used for that purpose
is as shown in FIG. In FIG. 1, 1 is a cable accommodation part, 2 is a constriction part, 3 is a wire locking part, and 4 is a wire suspension part. Wire locking part 3 and hanging part 4
Both have a horizontal U-shape, and are provided with notches 13 and 14 on the sides, respectively, through which the messenger wire c can be inserted.
The cable hanger 10 is integrally made of steel wire with such a structure. Therefore, the wire locking part 3 and the suspension part 4 are firmly connected in a fixed shape by the connecting part 5, and the wire c can be inserted therein only when the wires are attached in the order described below. Only when it is done. In the state shown in FIG. 1, the hanger 10 cannot move on the wire c, as will be described later.

Steel wire is suitable as the elastic material. Steel wire is
It is preferable to use the surface coated with a resin.
Therefore, the cable hanger of the present invention is preferably made by bending steel wire or resin-coated steel wire. Further, it is desirable to attach a strip 8 made of soft resin, for example, soft vinyl chloride resin, to the edge of the cable accommodating portion 1, particularly to the portion constituting the lower edge. A cut 81 is provided on the outside of the strip 8, and the cut 81
It is desirable to be able to insert steel wire or coated steel wire from the inside. Further, it is desirable that a set of protrusions 11 be integrally provided on the strip 8 in the vicinity of the narrowed portion 2. As will be described later, the protrusion 11 serves to prevent the wire c from descending when the messenger wire c is inserted into the cable accommodating part 1 through the constriction part 2.

To attach the cable hanger 10 to the messenger wire c for the first time, proceed as follows. First, as shown in FIG. 3, the wire c is passed through the wire locking part 3. For this purpose, since a notch 13 is provided on the side of the locking part 3, the notch 13 is opened and the wire c is passed through. At this time, the wire suspension part 4
Since the connecting portion 5 is in a state where it can be bent freely away from the wire c, the wire c can be easily passed through the locking portion 3 by widening the gap between the locking portion 3 and the connecting portion 5. Can be done.

Next, the cable hanger 10 is lifted and the wire c is passed through the constriction part 2 and moved from the locking part 3 to the cable housing part 1, so as to be in the state shown in FIG. 4. The narrowed portion 2 has a gap smaller than the diameter of the wire c, so that the wire c cannot normally pass therethrough. However, cable hanger 1
0 is forcibly pushed up, the elasticity of the steel wire opens a gap in the narrowed portion 2, and the wire c moves through the narrowed portion 2 into the cable housing portion 1. The wire c passing through the narrowed portion 2 is supported by the protrusion 11 as described above, and is prevented from moving significantly within the cable housing portion 1.

In the state shown in FIG. 4, the cable hanger 10 is
The wire c is passed between the protrusion 11 and the narrowed part 2, but since the gap between the protrusion 11 and the narrowed part 2 is wide, the wire c is not subject to any restrictions and can be used completely freely. can take a position. Therefore, the suspension part 4
Pass wire c through. The suspension part 4 has a notch 14 on one side.
Therefore, it is easy to open the notch 14 and pass the wire c into the suspension part 4. thus,
The cable hanger 10 is brought into a state as shown in FIG.

When the cable hanger 10 in the state shown in FIG. 5 is pulled downward, the wire c passes through the constricted portion 2 and moves into the locking portion 3, resulting in the state shown in FIG. 1. To pull the cable hanger 10 downward, for example, as shown in FIG.
What is necessary is to hang the drawstring 21 on and pull the drawstring 21. After the wire c has passed through the narrowing part 2 and moved into the locking part 3, if the drawstring 21 is pulled more strongly,
The overlapping portion 22 of the hook 20 is opened, the hook is released, and the hook 20 is removed from the cable hanger 10 together with the drawstring 21. In this way, the state shown in FIG. 1 is reached.

In the state shown in FIG. 1, the cable hanger 10 is locked onto the wire c by the locking part 3 and the hanging part 4. Moreover, the locking part 3 and the suspension part 4 are
Since the cable hanger 10 is only provided with cutouts 13 and 14 on the sides that are barely enough to allow the wire c to pass through, the cable hanger 10 cannot fall off the wire c.
Moreover, since the locking part 3 and the suspension part 4 are integrally connected by the connection part 5, a part of the frame that constitutes the locking part 3 and the frame that constitutes the suspension part 4 are separated. If the wire c is strongly pressed or a suitable twist is provided between the two frames, the cable hanger 10 will be firmly fixed on the wire c by the pressure or twist. The cable hanger 10 is thus immovably fixed on the wire c.

In one embodiment of the method of the present invention, the cable is passed through the cable housing section 1 and suspended from the messenger wire c in the state shown in FIG.

The method of this invention can be carried out efficiently as follows. First, as shown in FIG. 6, a large number of cable hangers 10 are attached to the messenger wire c near one utility pole p. At this time, the state of the hanger 10 is as shown in FIG. 5, in which the wire c is passed through the hanging part 4, but the wire c is not passed through the locking part 3, but the wire c is passed through the cable accommodation part 1. . Further, a hook 20 is engaged with the cable accommodating portion 1 of each hanger 10, and a drawstring 21 is hung on the hook 20. In addition, all cable hangers 1
A path cord 6 is passed through the cable housing portion 1 of 0, and the end of the path cord 6 is connected to the cable b.
By pulling the cable b, the cable b can be passed through the cable housing part 1.

In the state shown in FIG. 6, the hanger 10 is in a state where it can move on the wire c. Therefore, by attaching the spacing string 7 between each hook 20 and pulling the hanger 10' at the end in the direction of the arrow They are lined up on wire c with an interval of . At the same time, when the cable b is passed through the cable accommodating part 1 of each hanger by pulling the cable 6, the cable b is placed under the wire c.
is positioned, and the hanger 10 can support the cable b. Thereafter, when the drawstring 21 is pulled downward, the hanger 10 is lowered by the cable accommodating part 1, and the wire c passes through the narrowing part 2 and enters the locking part 3, so that the state shown in FIG. Then,
fixed on wire c. Furthermore, if the drawstring 21 is strongly pulled downward, the hook 20 comes off from the hanger 10 and comes off together with the drawstring 21 and the spacing string 7, thus ending the attachment of the hanger 10.

According to the method of this invention, as a cable hanger, the cable accommodating part is made into an annular shape and the narrowing part is provided at the upper part, and the horizontal U-shaped locking part communicates with the cable accommodating part through the narrowing part directly above the cable accommodating part. , and a horizontal U-shaped hanging part opposite to the locking part, the messenger wire is first passed through the locking part, and then passed through the narrowing part. The cable hanger can be movably attached on the messenger wire by passing it through the cable receiving part and passing the messenger wire through the suspension part. Therefore,
The cable hangers can be gathered at a convenient location and attached to the messenger wire, and then easily moved along the messenger wire to a desired position. Thereafter, by pulling the cable accommodating part of the cable hanger downward, the messenger wire can be moved from the cable accommodating part to the locking part via the constriction part.
The cable hanger is then immovably fixed onto the wire by the suspension part and the locking part. In particular, if a bend or twist is provided between the hanging part and the locking part, the cable hanger can be firmly fixed on the wire. Thus, according to the method of the present invention, a large number of cable hangers are attached to the messenger wire at positions near utility poles, the cable hangers are moved to a desired position in a movable state, and the cable accommodating portion is then simply pulled downward. Since the cable hanger can be fixed in place, it is easy to attach the cable hanger. The method of the invention provides such conveniences.

The invention also includes a cable hanger for use in the above method. The cable hanger according to the present invention includes a constricted portion at the top of the annular cable accommodating portion, a horizontal U-shaped locking portion that communicates with the constricted portion directly above the cable accommodating portion, and
Furthermore, the cable hanger is provided with a horizontally U-shaped hanging part on the side of the locking part and facing the locking part, and the entire cable hanger is made of an elastic material.

The cable hanger according to this invention has a sideways U
Since the locking portion is formed in the shape of a letter, the messenger wire can be easily passed through the locking portion through the U-shaped notch. In addition, since the locking part communicates with the cable housing part through the narrowing part, the messenger wire can be easily transferred to the cable housing part, and the transferred wire can be retained in the cable housing part. can. Further, since the horizontal U-shaped suspension portion is provided on the side of the locking portion and facing the locking portion, the messenger wire can be easily passed through the suspension portion through the U-shaped notch. The cable hanger can thus be movably held on the messenger wire by threading the messenger wire through the suspension section and the cable receiving section. Furthermore, since the locking portion is provided directly above the cable storage portion, the messenger wire can be moved from the cable storage portion to the locking portion by pulling the cable storage portion downward. Then, since the locking part and the suspension part are made integrally, the cable hanger is immovably locked on the messenger wire. The cable hanger of the present invention provides these advantages.

[Brief explanation of drawings]

1, 3 to 5 are perspective views showing the installation process of the cable hanger according to the present invention. FIG. 2 is a perspective view showing the attached state of a conventional cable hanger. FIG. 6 is a side view showing one embodiment of the method of this invention. In the figure, c is messenger wire, 10
is a cable hanger, 1 is a cable storage part, 2 is a narrowing part, 3 is a locking part, 4 is a suspension part, 5 is a connecting part,
6 is a road string, 7 is a spacing string, 8 is a strip, 20 is a hook, 2
1 is a drawstring.

Claims (1)

[Scope of Claims] 1. The cable accommodating part is made into an annular shape, and a narrowed part is provided at the upper part of the cable accommodating part, and a horizontal U-shaped locking part is provided directly above the cable accommodating part and communicates through the narrowed part, and further Using a cable hanger that has a horizontal U-shaped hanging part on the side of the above-mentioned locking part and facing it, connect the cable hanger's cable storage part and the hanging part to the cable hanger's cable storage part and the suspension part. The cable hanger is movably attached to the wire through the wire, and the cable housing part is pulled downward at the desired position, and the wire is transferred from the cable housing part to the locking part through the constriction part, and the cable hanger is connected to the suspension part. A method for attaching a cable hanger, characterized in that the cable hanger is fixed onto a wire by the clamping force of a locking part. 2. A constricted part is provided at the top of the annular cable accommodating part, and a horizontal U-shaped locking part is provided directly above the cable accommodating part and communicates with the narrowed part, and further on the side of the locking part. A cable hanger that has a sideways U-shaped suspension part facing it, and is made of an elastic material as a whole.