JPH0453902Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hand vise used for long splicing of wire rope.

[Conventional technology and its issues]

Long splices are commonly used as one method for connecting wire ropes. This long splice is usually performed by untwisting the ends of both wire ropes to be connected, dividing them into two groups of long and short strands, untying the short strands, then replacing the other long strand, and then untwisting both the long and short strands. The method used is to cut the wire rope to a certain length, straighten it, cut out the core rope of the wire rope, and repeatedly insert the strand into this portion to connect the wire rope. In this case, if each connection part is twisted or the strands are lifted, the connection part and the ropes before and after the connection part are likely to lose their shape or break during use of the wire rope.

Therefore, the degree of insertion of the strand is the most important factor in determining the quality of long splices. Conventionally, vises used as tools for this type of wire rope splicing have a fixed jaw with a semicircular groove; It had a movable jaw with a mark that moved it forward and backward. For this reason, it is only possible to tighten the entire circumference of the wire rope, but it is not possible to push the wire rope in when inserting it (to create a curl), and it is not possible to prevent the disordered twist and floating phenomenon of the strands as described above.

As a countermeasure against this, methods such as hitting the joint with a mallet have been used, but it is difficult to hit only a specific strand with a predetermined twist angle.
Moreover, since it is not possible to hold the processing to create a habit,
It had almost no effect.

For this reason, when making endless wire ropes to provide cableway support ropes for ski lifts, gondola lifts, etc., for example, the twisting of the connections may cause wire breakage to occur earlier, and the strands may lift up, causing the diameter of the connection to decrease. The rope may become larger than the actual diameter, or the tension balance of each strand may become unstable.
This causes the tow rope to vibrate, making the ride of the lift uncomfortable and causing problems such as easy damage to the rubber linings of the receiving rope ring, pressure rope ring, and return sheave.

This invention was devised to solve the above-mentioned problems, and its purpose is to easily and reliably perform the process of inserting the strand into the cut-out part of the core rope during long splicing work, and to prevent the strands from becoming disordered. To provide a dedicated vise with a simple structure that can accurately prevent strand floating.

[Means to solve the problem]

In order to achieve the above object, the present invention is a hand vise used for inserting a strand into the cut-out part of the core rope during splicing of wire rope. Providing a wire rope support with grooves,
At the tip of the rod threaded into the bearing, a pressing piece having a flat claw-shaped pressing part with a thickness smaller than the diameter of the strand inserted into the core rope cutting part of the wire rope supported by the rope support part, It is attached so that it can rotate relative to the rod.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 4 show an embodiment of a hand vise for wire rope splicing according to the present invention.

Reference numeral 1 denotes a vise main body, which is approximately disk-shaped, and has a support portion 2 rising up from one end in the longitudinal direction, and a wire rope support portion 20 is disposed orthogonally to the support portion 2 and is fixed by welding. There is. The wire rope support part 20 has a semicircular groove 200 so that approximately half the circumference of the wire rope A can be fitted therein, and has a required length so that a wire rope pressing part to be described later works stably. .

Reference numeral 3 denotes a cylindrical bearing provided in the vise body 1 so as to face the support portion 2, and a female thread 30 is cut into this bearing 3.

Reference numeral 4 denotes a rod, and a male thread 40 is provided in one half of the rod, and by screwing the male thread 40 into the female thread 30 of the bearing 3, the rod can move forward and backward relative to the rope support portion 20. A mounting hole 6 for a rod-shaped handle (not shown) for rotational operation is provided behind the male screw 40.

5 is a pressing piece for selectively pushing only a predetermined strand into the inside of the rope, and has a flat claw-shaped pressing part 50 at the front part, and the pressing part 50 has a thickness smaller than the diameter of the strand a to be inserted. and a width sufficient to prevent local deformation of the strand a.

The pressing piece 5 is attached to the tip of the rod 4 so that it can move integrally in the axial direction and rotate relative to it in the circumferential direction. That is, as shown in FIG. 4, for example, the pressing piece 5 has a blind hole 51 on the back, and the end 41 of the rod 4 is inserted into this blind hole 51.
The end face is received by the thrust bearing 7, and a ring groove 42 is formed in the radial direction, into which the tip of the stopper 8 screwed into the pressing piece 5 is inserted. C is a normal tightening vise.

[Effect of the embodiment]

Next, the usage and operation of the embodiment will be explained.

In long splice processing, the strands to be inserted are rearranged, replaced, and wrapped, then the wrapping part of the inserted strand is gripped using a regular vise, and the core rope is placed at a suitable distance from the planned connection part. Cut it, take it out to the outside of the rope, and insert one pitch of strand into this part.

In the insertion work, flat spikes and hooks are used to widen the insertion opening of the wire rope, so the diameter of the strand insertion portion expands to, for example, about 1.6 times or more than the rope's actual diameter, and the twist becomes disordered.

The present invention is used when this strand insertion is completed. That is, first, with the rod 4 retracted, the wire rope support 20 is brought close to the wire rope A, the position is adjusted so that the insertion strand a faces the pusher piece 5, and the semicircular groove 20
0 onto wire rope A. Next, the rod 4 is rotated by a rod-shaped handle (not shown).

As a result, the rod 4 moves forward, and the pressing piece 5 also moves together. As a result, the flat claw-shaped pressing portion 50 comes into contact with the insertion strand a. Since the pressing piece 5 is connected to the rod 4 so that it can idle,
By moving the pressing piece 5, the flat claw-shaped pressing portion 50 can be made to accurately match the twist angle of the wire rope. This state is shown in FIG.

If the rod 4 is further rotated in this state, the pressing part 50 moves forward by the thrust of the rod 4 while keeping the twist angle of the wire rope consistent with the twist angle of the wire rope. Therefore, the insertion strand a is gradually tightened as shown in FIG. 1, and is completely inserted into the portion of the wire rope from which the core rope has been cut out, as shown in FIG. Then, as necessary, each insertion point is corrected using a plurality of vises B, B of the present invention as shown in FIG.

[Effect of idea]

According to the present invention described above, the wire rope support part 20 provided with the semicircular groove 200 is provided on the side of the vise body 1 facing the female threaded bearing 3 to support the wire rope A, and
A pressing piece 5 having a flat claw-shaped pressing part 50 having a thickness smaller than the diameter of the strand a inserted into the core rope cutting portion of the wire rope A is attached to the tip of the rod 4 that is threaded through the bearing 3. 4, the flat claw-shaped pressing part 50 can be freely adjusted to accurately match the various twisting angles of the wire rope A, and only the target strand a can be adjusted to the twisting angle. Together, it can be easily and securely inserted into the rope. Therefore, the workability and efficiency of splicing processing is improved, and it is possible to prevent the strands at the connection part from twisting disorderly or floating, and to prevent the shape of the front and back of the connection part from becoming sloppy or disconnected during subsequent use of the wire rope. occurrence can be reduced. In addition, it has a simple structure and can be manufactured at low cost, providing excellent effects.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the hand vise for wire rope splicing according to the present invention, Figs. 2 and 3 are perspective views of the vise itself, and Fig. 4 is a cross section showing the connection between the rod and the strand pressing piece. Figure, 5th
7 through 7 are perspective views showing the state of use of the vice of the present invention. 1... Vise body, 3... Bearing, 4... Rod, 5... Pressing piece, 20... Wire rope support part, 30... Female thread, 40... Male thread, 50...
Pressing portion, 200... semicircular groove.

Claims (1)

[Scope of utility model registration request] This hand vise is used for inserting a strand into a cut-out part of a core rope during splicing of a wire rope, and is a wire rope support equipped with a semicircular groove 200 on the side facing a female threaded bearing 3 of a vise body 1. A wire rope support part 20 is provided at the tip of the rod 4 which is screwed into the bearing 3.
A pressing piece 5 having a flat claw-shaped pressing part 50 having a thickness smaller than the diameter of the strand a inserted into the core rope cutting portion of the wire rope A supported by the rod 4 is
A hand vise for wire rope splicing, characterized in that it is mounted so that it can rotate relative to the wire rope splice.