JP2002315166A - Cable hanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable hanger capable of holding cables having various diameters with stability without use of a bush. SOLUTION: The cable hanger is constituted of a hanging portion 1 which is hung from a messenger wire W and a holding portion 2 which holds a cable C under the hanging portion 1 and comprises a pair of clamping pieces 3a and 3b. The cable hanger is so designed that a cable C is held by sandwiching the cable C between arcuate portions 4 formed on the clamping pieces 3a and 3b and tightening the clamping pieces 3a and 3b by one bolt 5. A bolt insertion hole 6 which is a long hole extending in the direction of the arc of the arcuate portions 4 is formed in the clamping piece 3b, and the bolt seat 7 of the clamping piece 3b is formed on a convex curved surface which is curved in the direction of the above long hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable hanger, and more particularly to a cable hanger capable of holding cables of different diameters stably without using a bush.

[0002]

2. Description of the Related Art In a cable hanger, for example, in assembling various machines, a power cable is movably suspended along a messenger wire so that various power tools can be used while moving. Such a cable hanger includes a roller that rolls on the messenger wire, and includes a hanging portion that is hung on the messenger wire, and a holding portion that is provided below the hanging portion and holds the cable. Things are generally well known.

[0003]

By the way, the holding portion of the conventional cable hanger employs a structure in which a cable is sandwiched between the arc portions of a pair of holding pieces, and the holding pieces are tightened by one bolt. Since the size of the arc of the holding piece is predetermined, for example, when holding a cable having a small diameter, it is necessary to hold the cable via a bush, and the cost increases due to an increase in the number of parts. At the same time, it takes time to clamp the cable,
There is a problem that the bolts that fasten the holding pieces are easily loosened due to vibrations such as when the cable hanger moves.

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional cable hanger, an object of the present invention is to provide a cable hanger which can stably hold cables having different diameters without using a bush.

[0005]

In order to achieve the above object, a cable hanger according to the present invention comprises a hanging portion which is hung on a messenger wire or the like and a holding portion which holds a cable below the hanging portion. The holding portion is constituted by a pair of holding pieces, the cable is held between the arc portions formed on the holding piece, and the cable is held by fastening the holding piece with one bolt. In the cable hanger described above, one of the holding pieces has a bolt insertion hole formed by a long hole in the arc direction of the arc portion, and the bolt receiving seat of the holding piece has a convex curved surface curved in the long hole direction. It is characterized by being formed in.

In this cable hanger, a bolt insertion hole is formed in one of a pair of holding pieces in the form of an arc-shaped elongated hole in an arc portion, and a bolt receiving seat of the holding piece is curved in the elongated hole direction. Because it is formed on a convex curved surface, even if the angle between the holding pieces is changed according to the diameter of the cable to be held, the bolt receiving seat formed on the curved surface corresponds to this changed angle. The bearing surface of the bolt or the nut can be stably supported, so that the cables having different diameters can be stably held without using a bush.

In this case, two arc portions can be formed on the holding piece with the bolt interposed therebetween.

Thus, two cables having the same diameter or different diameters can be held at the same time, or one cable having various diameters can be held.

The hanging portion includes a roller that rolls on the messenger wire, and a housing that supports the roller, and an opening for attaching to the messenger wire is formed below the roller of the housing. At the same time, a lid urged in a direction to close the opening can be provided in the opening.

Thus, the cable hanger can be easily attached to the messenger wire without using a tool.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cable hanger according to the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of a cable hanger according to the present invention. The cable hanger is swingably connected to a suspension 1 suspended from the messenger wire W by a shaft 1a such as a bolt and the like. And a holding part 2 for holding the holding part 2, wherein the holding part 2 is a pair of holding pieces 3.
a, the cable C is sandwiched between the arc portions 4 of the
a, 3b are configured to be tightened by bolts 5. In this cable hanger, one of the pair of holding pieces 3a, 3b, specifically, the bolt 5
The bolt insertion hole 6 of the holding piece 3b on the head side is formed as an elongated hole in the arc direction of the arc portion 4, and the bolt receiving seat 7 of the holding piece 3b is formed into a convex curved surface curved in the long hole direction. Has formed.

The holding portion 2 pivotally connects the lower portions of the holding pieces 3a and 3b to open and close the upper arc portion 4 and a bolt disposed between the pivot portion and the arc portion 4. 5 and a nut 8. In this embodiment, the nut 8 is provided with one of the holding pieces 3.
Although it is configured to be fixed by fitting to a, it is not limited to this, and the bolt 5 may be inserted from the opposite direction.

On the other hand, the suspension unit 1 includes a roller 9 that rolls on the messenger wire W, and a housing 10 that supports the roller 9. A lid 12 whose lower part 12 a is pivotally supported by the housing 10 and is urged in the closing direction by a coil spring 13 is disposed in the opening 11. Thus, the messenger wire W can be easily taken in while guiding the roller 9 without using a tool.

In the cable hanger of this embodiment, a bolt insertion hole 6 formed of a long hole in the arc direction of the arc portion 4 is formed in one of the pair of holding pieces 3a, 3b. Since the bolt receiving seat 7 of 3b is formed to be a convex curved surface curved in the long hole direction, the holding pieces 3a, 3b according to the diameter of the cable C to be held.
Even if the angle between them is changed, the bolt receiving seat 7 formed on the curved surface can stably support the seating surface of the bolt 5 corresponding to the changed angle. C can be stably held without using a bush.

Next, FIGS. 4 to 6 show a second embodiment of the cable hanger of the present invention. This cable hanger has the same structure as that of the first embodiment except for the structure of the suspension portion 1 except for the leaf spring 14 of the lid 12.
The two arc portions 41 and 42 are formed with the bolt 5 of FIG. Also, a pair of holding pieces 3a, 3b
Are arranged separately from each other, and each of the holding pieces 3a, 3b can be tightened by the bolts 5 and the nuts 8 arranged between the arc portions 41, 42. In this cable hanger, one of the pair of holding pieces 3a and 3b, specifically, the bolt insertion hole 6 of the holding piece 3b on the head side of the bolt 5 is inserted into the arc direction of the arc portions 41 and 42. And the bolt receiving seat 7 of the sandwiching piece 3b is formed in a convex curved surface curved in the long hole direction. In this case, the lower arc portion 42 of the holding piece 3a connected to the hanging portion 1 is formed in a long arc in which the arc portion 42 of the other holding piece 3b enters inside. The cable C can be stably held even on the lower side of the holding section 2 where the C easily falls.

In the cable hanger of the present embodiment, one of the pair of holding pieces 3a and 3b is
A bolt insertion hole 6 composed of a long hole in the arc direction of 1, 42 is formed, and a bolt receiving seat 7 of the holding piece 3b is
Since it was formed in the convex curved surface curved in the long hole direction, as shown in FIGS. 5 to 6, even if the angle formed by the holding pieces 3 a and 3 b was changed according to the diameter of the cable C to be held. The bolt receiving seat 7 formed on the curved surface can stably support the seating surface of the bolt 5 corresponding to the changed angle, so that the cables C having different diameters can be held without using a bush. It can be performed stably. The two arc portions 41 and 42 are formed on the holding pieces 3a and 3b with the bolt 5 interposed therebetween, thereby simultaneously holding two cables C of the same diameter or different diameters, or Can hold the cables C of various diameters.

As described above, the cable hanger of the present invention
Although the description has been given based on a plurality of embodiments, the present invention is not limited to the configurations described in the above embodiments, and may be appropriately combined with the configurations described in each of the embodiments without departing from the spirit thereof. The configuration can be changed.

[0019]

According to the cable hanger of the present invention, one of the pair of holding pieces is formed with a bolt insertion hole formed by a long hole in the arc direction of the arc portion, and the bolt receiving seat of the holding piece is fitted with the bolt receiving seat. Since it is formed on a convex curved surface that curves in the long hole direction, even if the angle between the holding pieces is changed according to the diameter of the held cable, the bolt receiving seat formed on the curved surface changes this The bearing surfaces of the bolts or nuts can be stably supported in accordance with the set angles, whereby the cables having different diameters can be stably held without using a bush. Thereby, the number of parts can be reduced and the cost can be reduced, the operation of clamping the cable can be easily performed, and furthermore, the bolt tightening the clamping piece is loosened due to vibration such as when the cable hanger moves. Therefore, the cable can be stably held for a long period of time.

Further, two arc portions are formed on the holding piece with the bolt interposed therebetween to hold two cables of the same diameter or different diameters at the same time, or to connect one cable of various diameters. Cable can be held.

The hanging portion includes a roller that rolls on the messenger wire, and a housing that supports the roller, and an opening for attaching to the messenger wire is formed below the roller of the housing. At the same time, by disposing a lid urged in the opening to close the opening, the cable hanger can be easily attached to the messenger wire without using a tool.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view showing a first embodiment of a cable hanger of the present invention.

FIG. 2 is an explanatory diagram showing a state in which the cable hanger is attached to a messenger wire.

FIG. 3 is a front view showing a holding portion of the cable hanger.

FIG. 4 is a sectional front view showing a second embodiment of the cable hanger of the present invention.

FIG. 5 is a front view showing a holding portion of the cable hanger.

FIG. 6 is a front view showing a holding portion of the cable hanger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suspension part 1a Shaft 2 Holding part 3a Nipping piece 3b Nipping piece 4 Arc part 41 Arc part 42 Arc part 5 Bolt 6 Bolt insertion hole 7 Bolt receiving seat 8 Nut 9 Roller 10 Housing 11 Opening 12 Lid 13 Coil spring 14 Leaf spring C Cable W Messenger wire

Claims (3)

[Claims] 1. A hanger for hanging a messenger wire or the like, and a holding part for holding a cable below the hanging part, the holding part comprising a pair of holding pieces, In a cable hanger in which a cable is sandwiched between arc portions formed on a holding piece and the cable is held by tightening the holding piece with one bolt, one of the holding pieces has an arc direction of the arc portion. A cable hanger having a bolt insertion hole formed of a long hole and a bolt receiving seat of the holding piece formed in a convex curved surface curved in the long hole direction. 2. Holding the bolt on the holding piece,
2. The cable hanger according to claim 1, wherein a plurality of arc portions are formed. 3. The hanging portion includes a roller that rolls on the messenger wire, and a housing that supports the roller, and an opening is formed below the roller of the housing for attachment to the messenger wire. 3. The cable hanger according to claim 1, further comprising a cover urged in the opening to close the opening.