JPH09210141A - Locking device for wire rope - Google Patents

Abstract

PROBLEM TO BE SOLVED: Secure the locking of wire rope provide a locking device for wire ropes. SOLUTION: In a wire locking device having a stopper fitting including holes 4 for piercing a U bolt, a V groove 5 for engaging a wire, and nuts 2, 2' for tightening with the U bolt 1, a wire rope locking device is provided having a small protrusion 8 in the part opposing to the U bolt 1 of the fitting 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rope locking device, and more particularly to a wire rope locking device that ensures locking of the wire rope.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a wire rope locking device has been used. In FIG.
1 is a U bolt, and 2 and 2'are nuts. As shown in the drawing, the U bolt 1 is passed through the bolt hole 4 provided in the locking metal fitting 3 and the nuts 2 and 2 ′ are tightened into the U bolt 1 to form the V-shaped groove provided in the U bolt 1 and the locking metal fitting 3. The wire rope 6 to be locked is inserted between the wire rope 5 and the wire 5, and the nuts 2 and 2'are tightened to lock the wire rope.

[0003]

In the above conventional wire rope locking device, since the wire rope is sandwiched between the U bolt 1 and the V-shaped groove 5 of the locking metal fitting 3, the locking of the wire rope is comparative. However, if one or more wire ropes are locked because the U-bolt 1 and the V-shaped groove 5 are misaligned, as shown in FIG. There is a risk that the wire rope that is not in direct contact may not be sufficiently locked. Further, when locking one wire rope, since the cross-sectional area of the locking portion of the wire rope is small, if the wire rope is damaged by the locking metal fitting 3 when it is pinched strongly and a load is applied to the wire rope. There was also a risk that the wire rope would break or come off. SUMMARY OF THE INVENTION The present invention is intended to improve such drawbacks, and its purpose is not only a plurality of wire ropes but also a wire rope lock that can reliably lock even a single wire rope. To provide the ingredients.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a U-bolt, a metal fitting having a U-bolt through hole and a rope-locking V-shaped groove, and the U-bolt are provided. A wire rope lock having a nut to be fastened is provided, wherein the wire rope lock has a protrusion on a portion of the lock fitting facing the U bolt, and the protrusion is in the same direction with respect to the U bolt. The wire rope lock formed on the U-bolt is provided, and the wire rope lock formed on the U-bolt at a right angle to the U-bolt is provided. There is provided the above wire rope lock formed. According to the present invention, since the portion of the locking fitting facing the U-bolt has the protrusion, it is possible to apply a sufficient binding force to all the wire ropes even when a plurality of wire ropes are locked. Further, since the wire rope is not strongly pressed against the V-shaped groove of the locking metal fitting, the wire rope is not damaged.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram of an embodiment of the present invention. In this figure, the same parts as those in FIG. 3 are designated by the same reference numerals and the description thereof will be omitted. Reference numeral 7 in the drawing is a locking metal fitting, but is different from the locking metal fitting in FIG. 3 in that it has a locking projection 8.

The locking projection 8 is provided at a position facing the U-bolt 1 of the locking metal fitting 7, and the nuts 2 and 2'are tightened in the U-bolt 1 so that the space between the U-bolt 1 and the locking metal fitting 7 is tightened. When the wire rope 6 inserted into the wire rope 6 is locked, the wire rope 6 is sandwiched between the U-bolt 1 and a binding force can be applied to the wire rope 6.

FIG. 2A is a view when a plurality of wire ropes are sandwiched. In this figure, the wire rope in the lower part is securely bound by the tightening force of the U bolt from the upper part and the locking projection 8 of the locking metal fitting, and the wire rope in the upper part also connects the U bolt and the lower wire rope. It is pinched and surely bound. Further, even if the U-bolt is strongly tightened, it is restricted by the locking projection 8 of the locking metal fitting, so that the wire rope is not strongly pressed into the V-shaped groove, so that the wire rope is not damaged. Further, even when there is only one wire rope, the wire rope is firmly sandwiched between the locking projection 8 and the inside of the top of the U-bolt 1, so that the wire rope does not come off.

On the other hand, FIG. 2B is a view when a plurality of wire ropes are sandwiched by the conventional locking metal fittings 3.
The lower wire rope is sandwiched between the V-shaped groove of the locking fitting 3 and the U bolt, and is securely bound. The upper wire rope is sandwiched between the lower wire rope and the U-bolt, but there is a gap on the locking metal side of the lower wire rope, so it should not be bound tightly. Furthermore, if the U-bolt is strongly tightened, the wire rope is strongly pressed into the V-shaped groove of the locking metal fitting, which may damage the wire rope.

Although the present invention has been described with reference to the embodiments, the locking projections of the present invention are not limited to the above embodiments. For example, in the above embodiment, the locking protrusion is U
Although the one formed in the same direction as the bolt is illustrated, it is easily conceivable that the locking projection is formed in a direction perpendicular to the U bolt, a conical projection, and the like. It also includes things that can be thought of.

[0010]

EFFECTS OF THE INVENTION According to the present invention, since the protrusions are provided at the portions of the locking fittings that face the U bolts, even when a plurality of wire ropes are locked, a sufficient binding force is exerted on all the wire ropes. It can be added and the wire rope can be reliably locked. Further, even if the U bolt is strongly tightened, the wire rope is not strongly pressed into the V-shaped groove of the locking metal fitting, so that the wire rope is not damaged and the wire rope is not cut.

[Brief description of drawings]

FIG. 1 is a drawing of a locking fitting according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view when the wire rope of the locking metal fitting of the embodiment of the present invention and the conventional locking metal fitting are locked.

FIG. 3 is a drawing of a conventional locking metal fitting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... U bolt 2, 2 '... Nut 3 ... Locking metal fitting 4 ... Bolt hole 5 ... V-shaped groove 6 ... Wire rope 7 ... Locking metal fitting 8 ... Locking protrusion

Claims (4)

[Claims] 1. A wire rope locking tool having a U bolt, a locking metal fitting having a through hole for the U bolt, a V-shaped groove for locking the rope, and a nut fastened to the U bolt, the locking metal fitting. A wire rope locking device, characterized in that it has a protrusion in a portion facing the U-bolt. 2. The wire rope locking device according to claim 1, wherein the protrusion is formed in the same direction with respect to the U-bolt. 3. The wire rope locking device according to claim 1, wherein the projection is formed in a direction perpendicular to the U bolt. 4. The wire rope locking device according to claim 1, wherein the protrusion is formed in a conical shape.