JP2015031302A - Wire clip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire clip capable of efficiently fastening a wire rope through uniform fastening of several nuts.SOLUTION: Each of oppositely facing surfaces of a pair of holding plates 20 is provided with a rope groove 21 and there are provided at least more than three sets of a pair of bolt insertion holes 23 formed at both side parts of the rope groove 21 and oppositely facing in a width direction of the holding plates 20 while being spaced apart in a longitudinal direction of the holding plates 20, each of bolts 30 is inserted into each of the bolt insertion holes 23, the pair of holding plates 20 are fastened through rotation of a nut 40 threadably engaged with the bolt 30 so as to fasten two wire ropes 1 inserted into each of the rope grooves 21. One of the pair of holding plates 20 is divided into a plurality of segments in a longitudinal direction in such a way that a dividing plane may be positioned between the bolt insertion holes 23 arranged in the longitudinal direction, the bolt 30 and the nut 40 are classified in response to the number of division so as to easily make a uniform fastening force in the relation of the few number of nuts 40 forming a set.

Description

  The present invention relates to a wire clip used when holding a wire rope.

  In wire ropes used for hanging articles or reinforcing, loop-shaped eyes that are engaged with hooks such as cranes are formed. When forming the eye, the end portion of the wire rope is folded back, and the overlapping portion between the folded end portion and the end portion of the wire rope is clamped with a wire clip.

  Here, since the two wire ropes of the overlapping end portion forming the eye and the end portion of the wire rope are pulled in directions opposite to each other when a tension is applied, the wire rope is applied with a large load. For example, a wire clip described in Patent Document 1 is generally used to form the eye.

  In the wire clip described in Patent Document 1, a base piece is interposed between a pair of upper and lower outer pieces, and an eye is placed in a groove formed between the opposing surfaces of the base piece and the pair of outer pieces. The upper and lower outer pieces and the base piece are tightened by tightening a plurality of U bolts and nuts screwed to the end portions of the U bolts with the two wire ropes connected to both ends being fitted. Two wire ropes are clamped.

Japanese Utility Model Publication No. 39-16257

  By the way, when the outer piece is tightened by rotating each of a number of nuts that are screw-engaged with the respective end portions of the plurality of U bolts as in the wire clip described in Patent Document 1, the outer piece As described in Patent Document 1, it is extremely difficult to uniformly tighten each of a plurality of nuts if it is of a single plate shape, and when one nut is strongly tightened, It is necessary to retighten the other remaining nuts to equalize the tightening force of all the nuts, and there is a disadvantage that it takes much time to fasten the two wire ropes.

  In addition to fastening the two wire ropes as described above, the wire clip is used to fasten an intermediate portion of one wire rope, and receives a large load applied to the wire rope by the wire clip. Also used. Even in such use, it is necessary to make the tightening force of all the nuts uniform, and it takes much time to fasten the wire rope.

  An object of the present invention is to provide a wire clip capable of efficiently performing an operation of fastening a wire rope by uniformly fastening a plurality of nuts.

  In order to solve the above-described problems, in the present invention, a pair of sandwiching plates each having a rope groove into which a wire rope is inserted is provided on the opposing inner surface, and each of the pair of sandwiching plates is provided on both sides of the rope groove. At least three pairs of bolt insertion holes that are formed and are opposed to each other in the width direction of the sandwiching plate are formed at intervals in the length direction of the sandwiching plate, and a nail is formed at a corner of one end of the pair of sandwiching plates. Provided, and at the corner portion of the other end portion, a notch portion into which the claw formed on the opposing clamping plate is inserted is formed, and the pair of clamping plates are inserted into the bolt insertion holes, and In the wire clip, which is fastened by tightening a nut engaged with a screw to the end of the bolt and sandwiches the wire rope inserted into the rope groove, the pair of sandwiching presses One of the clamping plates bets is the adopted a configuration in which division surface between the bolt insertion hole is divided into plurality in the longitudinal direction so as to be positioned aligned in the longitudinal direction.

  In the wire clip having the above-described configuration, when the two wire ropes of the overlapping end portion forming the eye and the end portion of the wire rope are fastened, each of the two wire ropes connected to the eye is clamped as a pair. Insert the bolt into each of the multiple bolt insertion holes formed in the clamping plate while inserting it into each of the rope grooves formed on the opposing surface of the plate, and screw the nut to each end of the bolt And tighten.

  At this time, since one clamping plate of the pair of clamping plates is divided into a plurality in the length direction, a plurality of nuts for tightening one clamping plate are grouped according to the number of divisions of the clamping plate, As a result, the number of nuts that fasten the split clamping plate is small, and it is easy to make the tightening force uniform among the small number of nuts. As a result, the wire rope can be fastened efficiently by tightening a plurality of nuts.

  Here, by providing a concave portion on one of the split surfaces of one clamping plate and providing a convex portion fitted to the concave portion on the other, a pair of opposing clamping plates are relatively inclined by tightening the nut. Is prevented and a stable tightening state can be obtained.

  The bolt may be a bolt with a head provided with a head at the end of the screw shaft, or a U-bolt. By adopting U bolts, a pair of screw shaft portions of U bolts can be simultaneously inserted into a pair of opposed bolt insertion holes facing each other in the width direction of the clamping plate, so that the tightening operation can be performed more efficiently. .

  In the present invention, as described above, one of the pair of clamping plates is divided into a plurality of lengthwise plates, whereby the divided clamping plates can be tightened with a small number of nuts, and the small number of nuts Since it is only necessary to make the tightening force uniform between each other, the wire rope can be fastened efficiently by tightening a plurality of nuts.

The front view of the state which formed the eye in the edge part of a wire rope using the wire clip concerning this invention The front view of the state which expanded the wire clip part shown in FIG. Plan view of FIG. Bottom view of FIG. Left side view of FIG. Sectional view along line VI-VI in FIG. The top view which shows other embodiment of the wire clip concerning this invention

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a state where an end portion of a wire rope 1 is folded to provide an eye 2 and an overlapping portion of two wire ropes connected to the eye 2 is fastened by a wire clip 10 according to the present invention.

  As shown in FIGS. 2 to 6, the wire clip 10 includes a pair of opposing clamping plates 20, and bolts 30 and nuts 40 that fasten the pair of clamping plates 20.

  The pair of sandwiching plates 20 has a rectangular planar shape, and on the opposite inner surface, a rope groove 21 having an arc-shaped cross section extending to both ends is formed at the center in the width direction, and the wire rope 1 is connected to the rope groove 21. It can be inserted.

  A twist groove 22 is formed on the inner surface of the rope groove 21 along the strands of the plurality of strands forming the wire rope 1.

  Each of the pair of clamping plates 20 includes three pairs of bolt insertion holes 23 that are opposed to each other in the width direction of the clamping plate 20 on both sides of the rope groove 21 with a gap in the length direction of the clamping plate 20. The bolts 30 can be inserted into the respective bolt insertion holes 23.

  Claws 24 are provided at both corners at one end of the pair of sandwiching plates 20. In addition, a notch 25 is formed at both corners at the other end, and the bolt insertion holes 23 of the pair of sandwiching plates 20 coincide with each other by fitting the claws 24 of the other sandwiching plate 20 into the notch 25. It is kept in a combined state.

  Of the pair of sandwiching plates 20, one sandwiching plate 20 is divided into two in the length direction so that the split surface is positioned between the bolt insertion holes 23 arranged in the length direction, and the first split sandwich plate is divided by the division. 20a and a second divided clamping plate 20b are provided.

  Concave portions 26 are formed on the dividing surface of the first divided sandwiching plate 20a, while convex portions 27 fitted to the recessed portions 26 are formed on the divided surface of the second divided sandwiching plate 20b.

  The wire clip shown in the embodiment has the above-described structure, and FIG. 1 shows that the end of the wire rope 1 is folded and the folded end is overlapped with the wire rope 1 to form an eye 2. 2 shows a state in which two overlapping wire ropes 1 connected to each other are clamped by a pair of clamping plates 20.

  Here, when the two wire ropes 1 connected to both ends of the eye 2 are clamped, each of the two wire ropes 1 is inserted into each of the rope grooves 21 formed in the pair of clamping plates 20, and the claw 24. Are fitted in the notch 25 of the opposing clamping plate 20 and each of the plurality of bolt insertion holes 23 arranged on the same axis in the combined state of the pair of clamping plates 20 on which the bolt insertion holes 23 are arranged on the same axis. The bolt 30 is inserted into the bolt 30, and the nut 40 is screwed to the end of the bolt 30 and tightened.

  At this time, one clamping plate 20 of the pair of clamping plates 20 is divided into a first divided clamping plate 20a and a second divided clamping plate 20b, and the first divided clamping plate 20a is tightened with two nuts 40 as a set. On the other hand, in the second divided sandwiching plate 20b, since four nuts 40 are tightened as a set, it is easy to make the tightening force uniform among a small number of nuts 40 forming the set. The fastening operation of the wire rope 1 can be performed efficiently.

  Moreover, since the recessed part 26 is formed in the division | segmentation surface of the 1st division | segmentation clamping plate 20a, and the convex part 27 of the 2nd division | segmentation clamping plate 20b is fitted in the recessed part 26, a pair of division | segmentation clamping is carried out by tightening the nut 40. The plates 20a and 20b are prevented from being inclined relatively, and a stable tightening state is obtained.

  In the example shown in FIG. 2 and FIG. 3, one clamping plate 20 is divided into two parts, a first divided clamping plate 20a and a second divided clamping plate 20b. However, as shown in FIG. The first divided holding plate 20a to the third divided holding plate 20c may be formed by dividing into three in the length direction.

  In the embodiment, each of the pair of sandwiching plates 20 is formed with three pairs of bolt insertion holes 23 facing each other in the width direction of the sandwiching plate at intervals in the lengthwise direction of the sandwiching plate 20. The number of sets is not limited to three, but may be three or more.

  Furthermore, in the embodiment, the case where the two wire ropes 1 are fastened has been described as an example, but the present invention can also be used when one wire rope is fastened.

10 wire clip 20 clamping plate 20a first divided clamping plate 20b second divided clamping plate 20c third divided clamping plate 21 rope groove 23 bolt insertion hole 24 nail 25 notch 26 recess 27 convex 30 bolt 40 nut

Claims (2)

A pair of clamping plates having a pair of clamping plates on opposite inner surfaces, into which the wire ropes are inserted, and a pair of bolts that are formed on both sides of the rope channel and are opposed to each other in the width direction of the clamping plate. At least three insertion holes are formed at intervals in the length direction of the sandwiching plate, a claw is provided at the corner of one end of the pair of sandwiching plates, and the corner of the other end is opposed to the corner Forming a notch into which the claw formed on the clamping plate is inserted, tightening a bolt inserted into the bolt insertion hole with the pair of clamping plates and a nut screw-engaged with an end of the bolt In the wire clip that is fastened by and sandwiches the wire rope inserted in the rope groove,
A wire clip, wherein one clamping plate of the pair of clamping plates is divided into a plurality in the length direction so that a dividing surface is positioned between the bolt insertion holes arranged in the length direction.   The wire clip according to claim 1, wherein a concave portion is provided on one side of the dividing surface, and a convex portion that is fitted to the concave portion is provided on the other side.

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