JPS6243121Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a belt tightener for utility poles used when tightening risers on utility pole surfaces with flexible belts such as stainless steel belts.

BACKGROUND TECHNOLOGY A belt locking hole is formed in the bottom plate of a main body metal fitting consisting of a bottom plate and side plates placed oppositely on both sides of the bottom plate.
A belt winding shaft is rotatably mounted on the pair of side plates.

Problems that the invention aims to solve The above-mentioned tightening device has a simple structure and can be manufactured at low cost, so it is used in many fields, but due to its mechanism, it requires a height of about 20 to 30 mm. After installation, it is forced to protrude that much from the telephone pole surface. Furthermore, the law stipulates that scaffolding must not be installed less than 1.8m from the ground surface of a telephone pole, and there is no scaffolding for raising and lowering the pole.
In particular, it is not uncommon for workers to place their feet on the tightening device, which is a protruding object installed in the position, and use it as a scaffold for lifting and lowering. Frequently, the tightening device cannot hold up and falls over, and the belt breaks and becomes useless.

Purpose of the invention In view of the above-mentioned points, the present invention was devised in order to prevent the tightening device from tipping over or damaging the belt by preventing the foot from being placed on the tightening device even if an attempt is made to do so.

Means for achieving the purpose One end of the protective cover that covers the body metal fittings is rotatably attached to one end of the side plate, and the other end of the side plate receives a locking edge provided at the other end of the protective cover. In addition to providing an edge, the outer edge of the protective cover, which is located above the main body metal fitting when attached to the utility pole surface, is inclined downward toward the main body metal fitting.

Embodiment The drawing shows an embodiment of the utility pole belt tightener according to the present invention, in which 1 is a main body metal fitting, and the main body metal fitting 1 has side plates 3, 3 provided by bending both ends facing the bottom plate 2.
It is composed of a cross-sectional shape consisting of. 5
is a locking hole provided in the bottom plate 2 of the main body metal fitting 1, and one end of the tightening belt 10 is locked in this locking hole 5. Reference numeral 6 denotes a winding shaft which is rotatably installed in the center of the side plates 3, 3 and winds up the other end of the tightening belt 10. Further, 7 is a protective cover, and the protective cover 7 has a gap 8 on the lower surface into which the main body metal fitting 1 is fitted, and protrusions 9, 9, 9', 9' are provided oppositely at the lower part of both ends, and one protrusion 9, 9 are rotatably assembled to the main body fitting 1 by engaging with the through holes 4, 4 provided at one end of the side plates 3, 3 of the main body fitting 1. At one end, a through hole 4' for locking the other protrusion 9' provided on the protective cover 7,
4' is provided.

the outer edge 11 of the protective cover 7 on the side plates 3, 3;
11 is inclined as shown in FIG. 2, and when attached to the D side of the telephone pole, one outer edge 11 is located above the main body fitting 1 and is inclined downward in the direction of the main body fitting 1.

The reason why the outer edges 11 and 11 are made the same shape is that when installing on a utility pole, either one can be placed on the upper side. Of course, it is also possible to have the above-mentioned shape, that is, a downwardly inclined shape.

For example, the tightening belt 10 is rotated by rotating the winding shaft 6 using a rotating means described in Japanese Utility Model Publication No. 45-1227 or Japanese Utility Model Publication No. 52-4460.
After tightening the protective cover 7 to the pole D side, attach the protective cover 7 to the protrusion 9.
is rotated about the fulcrum, the other protrusion 9' is engaged with the other through hole 3' provided in the side plate 3, the main body fitting 1 is fitted into the gap 8, and the protective cover 7 is fitted. Therefore, the main body metal fitting 1 is used as a cover.

The protective cover 7 is made of synthetic resin, and in the embodiment, the locking edges in the scope of the utility model registration claims are provided with protrusions 9, 9', and the receiving edges are provided with through holes 4, 4'. However, there is no need to limit the structure to that of the embodiment.

Effects of the invention Since the invention has the above-mentioned configuration, after the belt is wound around the winding shaft and the belt is tightened to the telephone pole surface, the protective cover can be rotated to cover the main body metal fittings. Furthermore, when installed on a utility pole, the outer edge of the protective cover located above the main body metal fittings is sloped downward toward the main body metal fittings, so even if a worker tries to put his or her feet on the cover, the slope prevents the cover from hanging. First, since it is impossible to use the belt as a scaffold for lifting and lowering, it is possible to prevent the belt from breaking when used as a scaffold.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a right side view, FIG. 3 is a partially cutaway plan view, FIG. 4 is a rear view of the protective cover, and FIG. is the fourth
FIG. 6 is a sectional view taken along line B-B' in FIG. 4, and FIG. 7 is a partially cutaway perspective view of the protective cover. 1...Body metal fittings, 2...Bottom plate, 3...Side plate, 5
... Locking hole, 6 ... Winding shaft, 7 ... Protective cover,
10... Tightening belt, 11... Outer edge.

Claims (1)

[Scope of utility model registration request] A belt locking hole is formed in the bottom plate of the main body metal fitting, which is composed of a bottom plate and side plates placed opposite to each other on both sides of the bottom plate,
In addition, in a belt tightener for utility poles in which a belt winding shaft is rotatably mounted on a pair of side plates, one end of a protective cover covering the body metal fittings is rotatably attached to one end of the side plates, and the side plate The other end is provided with a receiving edge for the locking edge provided on the other end of the protective cover, and the outer edge of the protective cover, which is located above the main body metal fittings, is lowered toward the main body metal fittings when installed on the utility pole surface. Belt tightener for vertically inclined utility poles.