JP3089276U - Cable end fitting with eye - Google Patents

Abstract

(57) [Abstract] (with correction) [PROBLEMS] To provide a compression-stop-type cable end fitting with an eye, which has a simple structure, has extremely high fastening efficiency, is easy to manufacture, and can be manufactured at low cost. SOLUTION: A first body 1 having a tubular portion 10 into which an end portion 50 of a cable 5 is inserted and for fastening the cable end portion 50 by being compressed from the outside, and for coupling to another object. Eye 2
The second part 2 having 0 is integrated by butt welding.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a cable end fitting with an eye end for fixing an end of a cable end, particularly a wire rope, and connecting or connecting to another object.

[0002]

[Prior art]

 When using ropes with twisted steel wires such as wire ropes and cables, the ends of the ropes must be connected or connected to other objects before use. The end of the rope can be stopped by bending the end of the rope into an eye shape, untwisting the rope itself and stabbing it. In addition to clipping with a clip ring, there is also a compression stopper that, after turning the cable end into an eye, inserts the short end of the cable parallel to the cable body and inserts it into the sleeve-shaped metal fitting 8 to compress the metal fitting from the outside and stop.

FIG. 1 shows a conventional compression stopper (Toyo lock type), in which A is a sleeve made of an aluminum alloy, and B is a thimble fitted to an eye portion 80 constituted by a cable 8. In such a structure, there was a problem that the center was displaced from the axis of the rope because the short ends of the rope were arranged parallel to the rope body. In order to avoid this, the cable ends must be untwisted and inserted into the cable body in a single type, which has the problem that the processing is troublesome and the cost increases. In any case, the cable ends had to be bent with a small radius so as to form an eye, so there was a problem that the processing was troublesome and time-consuming.

[0004] Also, in use, the guaranteed load is limited to about 95% of the tensile load of the rope because the rope end is bent into an eye and the sleeve is made of an aluminum alloy. Is made of aluminum alloy, so it cannot be used in corrosive environments such as the ocean.

[0005]

[Problems to be solved by the invention]

 The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a simple structure, extremely high fastening efficiency, and an eye with an eye which can be manufactured easily and inexpensively. An object of the present invention is to provide a compression-stop type cable end fitting.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is an end fitting with an eye for wire ropes, which has a cylindrical portion into which the end of the rope is inserted, and is fastened from the outside to fasten the rope end. And a second part having an eye for connecting to another object. The first part and the second part are integrated by butt welding. Features.

[0007] Preferably, the second part is formed by processing a sheet steel material, and the first part is formed by processing a steel bar.

[0008]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1 to 4 show a first embodiment of a cable end fitting with an eye according to the present invention. Reference numeral 1 denotes a first part, which has a fastening hole 12 having a depth selected from a range of 3 to 6 times the diameter of a rope 5 such as a wire rope or a cable from a rear end of a bar made of SS400 or the like. And a solid part 11 for butt welding ahead of the cylindrical part 10. 13 is an end face 13 for abutting.

Reference numeral 2 denotes a second part, which is made of a thick plate made of SS400 or the like, and is punched or cut to form a ring piece 20 having a thimble-shaped eye (hole) 21 in the middle. And an end 22 for butt welding is formed at one end. In this example, the thickness t of the second body 2 is appropriately smaller than the diameter of the first body 1.

Then, the first part 1 and the second part 2 are separated from the butt-welded end 22 of the second part 2 and the first part 1 from the state of a single body in FIG. It comes into contact with the butting end face 13, is welded by the electric welding machine 3, and is integrated. Reference numeral 4 denotes a weld. The end portion 50 of the cable 5 such as a wire rope or a cable is inserted into the fastening hole 12 of the first body 1, and in this state, the cylindrical portion 10 of the first body 1 is radiused by a jig such as a split die. It is compressed from the direction and plastically deforms, and the end 50 of the cable 5 is fastened by diameter reduction.

FIG. 5 shows a second embodiment of the present invention. In this embodiment, a second part 2 made of a plate having a thickness t substantially equal to the diameter of the first part 1 is provided. It is configured in a shape having a circular eye 10, abuts against the butting end face 13 of the first body 1, is welded by an electric welding machine, and is integrated. Other configurations are the same as those of the first embodiment. The material of the first part 1 and the second part 2 of the first embodiment and the second embodiment may be aluminum alloy or the like. Further, the integration of the first part 1 and the second part 2 by welding can be performed even in a state where the end 50 of the cable 5 is fastened to the first part 1 in advance.

[0012]

Operation of the embodiment

 The eye-end cable end fitting according to the present invention comprises a first part 1 having a cylindrical part 10 having a fastening hole 12 and a solid part 11 for butt welding, and a second part comprising a ring piece 20 having an eye 21. Since the bodies 2 are butted and integrated by the welded portions 4, the mechanical properties such as dimensional tolerance and elongation are good, and the simple operation of simply inserting the end of the cord into the tubular portion 10 and compressing the same is performed. It is possible to achieve extremely high fastening efficiency, and since the thimble is integrated, there is no worry about the thimble falling off.

[0013] The results of the field tests show that the cable end fitting with an eye of the first embodiment (first part diameter: 16 mm, length 68 mm, second part thickness: 10 mm, eye hole length: 35 mm) , Ring piece width: 48 mm, the first part and the second part are electrically welded), and a wire rope of IWRC 6 × Fi (29) is used as a rope, an outer diameter of 8 mm, and a breaking load BS ≧ 43.3 KN. Specifications were used.

The experiment was performed by inserting both ends of the cable into the cylindrical portion of each cable end fitting with an eye and compressing the same, preparing three test pieces having a length of 1200 mm between the centers of the eyes, and pulling both ends in opposite directions. Was As a result, the breaking points were all wire ropes, and the breaking load was 48.0 KN (fastening efficiency 110%).

[0015] In addition, in order to integrally form the cable end fitting with the eye including the eye portion, casting molding is required and large-scale casting equipment is required, which is expensive. A first part 1 made of a bar having a formed cylindrical part 10 and a solid part 11 for butt welding and a second part 2 made of a plate made of a ring piece 20 having an eye 21 are joined to each other by welding. 4, the unit can be manufactured easily at low cost.

Further, the first part 1 is used as a common part, and the second part 2 of the first embodiment or the second embodiment having a different shape of the eye 21 can be selected and manufactured. Can be supported. Further, since the first part 1 and the second part 2 can be made of steel, they can be used under corrosive conditions such as in the ocean.

[0017]

[Effect of the invention]

 According to claim 1 of the present invention described above, it is a terminal fitting with an eye for wire ropes, which has a cylindrical portion 10 into which the end 50 of the cable 5 is inserted, and which is compressed from the outside. A first part 1 for fastening the cable end 50 and a second part 2 having an eye 20 for connecting to the other object, the first part 1 and the second part 2 is integrated by butt welding, so that the rope can be easily connected in a single lock system, the fastening efficiency can be as high as 100% or more, and it is easy to manufacture and inexpensive. The excellent effect that can be obtained.

According to the second aspect, the first part 1 is formed by processing a bar steel material, and the second part 2 is formed by processing a sheet steel material. An excellent effect is obtained in that it can be manufactured at low cost because it is only necessary to process a steel material that can be used under conditions and is easily available.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of a cable end fitting with an eye according to the present invention.

FIG. 2 is a partially cutaway side view of the first embodiment.

FIG. 3 is a partially cutaway sectional view taken along line III-III of the first embodiment.

FIG. 4A is a perspective view showing a single unit, and FIG. 4B is a perspective view showing a welding state.

5A is a plan view showing a second embodiment, and FIG. 5B is a side view thereof.

FIG. 6 is a plan view of a conventional cable end fitting with a thimble.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st body 2 2nd body 4 Welding part 5 Cable 10 Tube part 12 Fastening hole 20 Ring body 21 Eye (hole)

Claims (2)

[Utility model registration claims] 1. An end fitting with an eye for wire ropes, comprising a cylindrical portion 10 into which an end portion 50 of a cable 5 is inserted, for fastening the cable end portion 50 by being compressed from the outside. First body 1 and eye 2 for connecting to other objects
A first end part 1 and a second end part 2 are integrated by butt welding. 2. The cable end fitting with an eye according to claim 1, wherein the first part 1 is formed by processing a rod, and the second part 2 is formed by processing a steel plate.