JP2506913Y2 - Wire rope clamp device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a device for clamping a long wire rope at an arbitrary position.

(Prior Art) For example, when a long wire rope is clamped and restrained on the way, tension can be applied to the wire rope by pressing with a metal fitting. But like this,
When the wire rope is pressed by the metal fitting to be clamped, the clamping and unclamping operations are troublesome, and when the metal fitting is pressed, the surface of the wire rope is damaged.

(Purpose of the Invention) As described above, it is difficult to clamp the wire rope under high tension at an arbitrary position, and the above problems occur.

The present invention is a technique devised for the purpose of solving these problems, and provides a device for strongly clamping a wire rope without damaging it.

(Configuration of the Invention) The wire rope clamp device of the invention has the following features. That is, the chain is bent into a saw-tooth shape at every pitch, and the wire rope is inserted into the center of the chain. Here, the chain refers to a roller chain used for power transmission, a bush chain, and a chain formed by connecting an inner / outer link and a pin without incorporating a bush. The outer diameter of the wire rope is large enough to be inserted into the through hole formed at the center when the chain is bent into a saw-tooth shape, and the seat plate is interposed in the through hole. . Of course, the seat plate is arranged on the side of the chain that comes into contact with the pins or bushes, and a semicircular groove is formed inside the seat plate so that the wire rope can be constrained over substantially the entire circumference.

By the way, the clamp device configured as described above can pull the wire rope by applying tension in one direction,
The chain is stretched following the wire rope.
Of course, one end of the chain is fixed, and if the chain is stretched, the through hole becomes smaller to press the seat plate and clamp the wire rope. On the contrary, when the clamp is released, the stretched chain may be returned to its original state, which means can be achieved by pulling the wire rope in the opposite direction.

Hereinafter, an embodiment of a wire rope clamp device according to the present invention will be described in detail with reference to the drawings.

(Embodiment) FIGS. 1 and 2 are specific examples of the clamp device of the present invention, in which 1 is a wire rope, 2 is a chain, 3a and 3b are seat plates, and 4 is a case. 5 is a fixed pin, and the fixed pin 5 is a block 6 fixed to the case 4.
The movable pin 7, which is fixed to the other end and is located at the other end, is in a free state to extend and contract the chain 2. Of course, the pins 8, 8 ... Other than the fixed pin 5 are not constrained similarly to the movable pin 7, and some movement is permitted. Therefore, if the movable pin 7 moves downward in the figure, since the pins 8 are linked by the link, the distance M between the pin rows is reduced, pressing the seat plate, and eventually the wire rope 1.
Clamp. However, when the distance M between the pin rows is reduced, if the movable pin 7 is pulled downward without pulling down the movable pin 7 and the wire rope 1 is pulled downward, the seat contacting with the wire rope will be reduced. The plates 3a and 3b also move downward, and the pins 8, 8 ... Contacting the outer side surfaces of the seat plates 3a and 3b also move downward. Therefore, if the wire rope 1 is pulled down, the chain 2
In order for the chain 2 to be stretched along with the chain spring 2, the chain 2 has a coil spring 9 to some extent
The seat plates 3a, 3b are in a stretched state so as to be in contact with a and 3b and the seat plates 3a, 3b as well. A coil spring 9 is built in the case 4, and the coil spring 9 is attached to the wire rope 1 slidably in the longitudinal direction of the slider.
The movable pin 7 is fixed to the locking groove 11 of the slider 10 by pressing the slider 10 downward. Also the slider 10
The knob 12 is protruding from the case 4, and the knob 12
Is lifted upward, the chain 2 is compressed and the clamp is released, and the wire rope 1 can move freely in the upward and downward directions.

FIGS. 3 and 4 show an embodiment in which the clamp device shown in FIGS. 1 and 2 described above is further embodied, and is provided with a drum 13 for winding the wire rope 1 and having a length of 4 equivalents. It is a device that allows only the wire rope 1 to be pulled out and clamped.
In this case, the drum 13 is urged by a built-in mainspring 14 in a direction to wind the wire rope 1, and if the load acting on the lower end is removed, the wire rope 1 is taken up. Will end up. Therefore, when the wire rope 1 is stretched to an arbitrary length, the knob 12 has to be lifted and released, and a release cord 15 is led out from the knob 12 to the device, and the release cord 15 By pulling downward, the clamp is released and the wire rope 1 can be pulled out freely.

FIGS. 5 to 7 show another embodiment of the present invention, which is a concrete example having a feature of a clamp releasing mechanism. The wire rope 1 is wound around a drum 13 like the above embodiment. If the load at the lower end is removed, the wire rope 1 is wound by the built-in mainspring 14. Also, although it is the same as being able to be clamped by pulling it downward, no knob or releasing string for releasing the clamp is used.

The case 4 containing the chain 2 is fixed to the main body 16, and the drum 13 is also rotatably supported about a shaft 17 in the same manner. Further, the main body 16 has a lever 18 and a shaft 19
The lever 20 and the pressing plate 21 are attached to the other end of the lever 18, and the wire rope 1 wound around the drum 13 is wound around the roller 20. , The main body 16 inserted into the chain 2 in the case 4
It is derived from the bottom edge of.

Therefore, if the wire rope 1 is pulled downward now, the lever 18 is pushed down and the holding plate 21 pushes down the slider 10. The slider 10 is always lifted by the coil spring 9, but if it is pushed down by the holding plate 21, the movable pin 7 fixed to the locking groove 11 of the slider 10 is lowered, and the chain is 2 stretches and clamps the wire rope 1. Of course, conversely, if the load on the lower end of the wire rope 1 is released, the wire rope 1 will be wound up as in the previous embodiment. However, in this apparatus, it is necessary to clamp the wire rope 1 wound on the drum 13 in a state where the wire rope 1 is pulled out to an appropriate length,
A guide pipe 22 is attached to the lower end of the case 4 to regulate the lowering of the slider 10. That is, if the slider 10 descends within a certain distance, the chain 2 does not fully extend and the wire rope 1 is not clamped. As shown in FIG. 8, the wire rope 1 is inclined by a certain angle θ. By pulling the guide pipe 22 downward, the step portion 24 formed on the side surface 23 of the guide pipe 22 engages with the stopper 25 of the case 4 to regulate the lowering of the guide pipe 22. Therefore, the wire rope 1 can be freely pulled out in this state.

FIG. 9 shows a state in which the wire rope 1 is wound on the drum 13. From this state, the wire rope 1 is slanted and pulled out as shown in FIG.
When the wire rope 1 is pulled vertically downward, the slider 10 and the guide pipe 22 descend as shown in FIG. 10 to clamp the wire rope 1.

The specific examples shown in FIGS. 3, 4, 5, 6, and 7 are merely one form to which the wire rope clamp device of the present invention is applied. Can have the following effects.

(Effect) (1) The wire rope clamp device according to the present invention can immediately clamp the wire rope regardless of its length, and the operation is simple. The device has a simple structure in which a wire rope is inserted through a seat plate into a through hole in the longitudinal direction formed by a chain bent into a saw-tooth shape, but the width of the through hole is reduced as the chain extends. The force to reduce the distance between the pin rows is a wedge effect, and is very strong, providing a very strong clamping force.

(2) Further, since the wire rope is clamped by the clamp device via the seat plate, the wire rope can be clamped without damaging the outer peripheral surface of the wire rope.

[Brief description of drawings]

1 and 2 show an embodiment of a wire rope clamp device according to the present invention, wherein FIG. 1 is a front view and FIG. 2 is a transverse sectional view.
3 and 4 are application examples of the apparatus, FIG. 3 is a front view, FIG. 4 is a side sectional view, and FIGS. 5, 6 and 7 are other application examples. FIG. 5 is a front view, FIGS. 6 and 7 are sectional views, and FIGS. 8, 9 and 10 are detailed views of the clamp device used in the device shown in FIG. Shows the state of pulling out the wire rope, FIG. 9 shows the state of being wound on a drum, and FIG. 10 shows the state of being clamped. 1 ... Wire rope, 2 ... Chain, 3 ... Seat plate, 4 ... Case, 5 ... Fixed pin, 6 ... Block, 7 ... Movable pin, 8 ...
Pin, 9 ... Coil spring, 10 ... Slider, 11 ... Lock groove,
12 ... Knob, 13 ... Drum, 14 ... Mainspring, 15 ... Release string,
16 ... Main body, 17, 19 ... Shaft, 18 ... Lever, 20 ... Roller, 21 ...
Holding plate, 22 ... Guide pipe, 23 ... Side, 24 ... Step, 25 ...
stopper.

Claims (1)

(57) [Scope of utility model registration request] 1. A wire rope is inserted into a through hole formed by a row of pins and a row of links arranged in a longitudinal direction by bending a chain formed by connecting links freely at the time of bending, into a sawtooth shape, One end of the chain is fixed to the case, the other end is slidably attached to a slider attached to the case, and between the wire rope and the chain,
A wire rope clamp device characterized by interposing a pair of seat plates.