JPS6213379Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stretched rope guide in an automatic wire stretching device.

Automatic wire stretching equipment stretches an endless tension rope along the extension line, and continuously or intermittently passes the cable pulled out from the supply drum to cable suspension ropes provided at regular intervals on the tension rope. The wire is stretched by sequentially engaging the wire while feeding the wire. Since the weight of the cable is applied to the tension rope, a plurality of tension rope guides are provided along the extension line in order to prevent the tension rope from sagging.

Therefore, it is necessary that this rope guide supports the lower surface of the tensioning rope and also allows passage of the cable suspension rope hanging from the tensioning rope.

The configuration of a conventional tension rope guide is shown in Figure 1. That is, a pair of guide rollers 3 having an upper surface with a radius of curvature larger than the diameter of the tension rope 1 and a plurality of blades 2 protruding in the radial direction on the lower end circumferential surface are arranged, each blade of which is similar to the blade of the other guide roller. The two guide rollers are assembled so as to be located in the middle, and the two guide rollers are connected by a gear 4.

In the guide roller configured as described above, the tensioning rope 1 is supported on the concave curved surfaces of both rollers, and the cable suspension rope 6, which hangs down from the tensioning rope 1 and is equipped with a cable holder 5 at the lower end to hold the cable C, is as follows:
It passes through the gap between the vanes 2 and through the tensioning rope guide.

In the conventional tensioning rope guide described above, depending on the weight of the cable, there is a risk that the tensioning rope may get wedged between the rollers. Further, if the stretched rope has frayed wires, there is a risk that the wires may become entangled with the blades 2.

The present invention was developed based on the above-mentioned circumstances, and aims to provide a stretched rope guide for automatic wire stretching equipment that does not cause the stretched rope to bite into the guide rollers or become entangled with frayed ropes. .

In the present invention, a pair of cylindrical guide rollers are provided with an interval of at least the diameter of the cable suspension rope, and the circumferential surface of each roller has an arc-shaped cross section with a radius of curvature equal to the diameter of the stretched rope. The grooves are provided to achieve the above objective.

The details of the present invention will be explained below with reference to the drawings. Second
In the figure, a roller receiver 11 is provided in a hanging tool 10 that is suspended from a fixed part (not shown).
A pair of guide rollers 12 are supported on this roller receiver such that the distance G between their lower ends is at least equal to the diameter of the cable suspension rope. The guide roller 12 is supported by a roller bearing 13 on a roller receiver 11.

Further, a circumferential groove 14 having an arcuate cross section and a radius of curvature equal to the diameter of the tensioned rope 1 is provided at an opposing position in the axially intermediate portion of the guide roller 12 .

According to the developed rope guide of the present invention having the above configuration,
The tension rope 1 engages both sides with the circumferential grooves 14 and travels while being held by the guide rollers 12. The tension rope 1 has a considerably larger diameter than the cable suspension rope. In other words, the gap G between the lower ends of the guide rollers 12 is significantly smaller than the diameter of the tension rope 1. Moreover, since the tension rope 1 travels while being supported by the guide rollers 12 on both sides as described above, even if the weight of the cable suspended and supported by the tension rope 1 is large, the distance between the guide rollers 12 There is no risk of getting stuck in the gap G.

Further, since the cable hanging rope passes through the gap between the guide rollers and no blades are provided, even if the tensioned rope becomes frayed, the fray will not become tangled.

In addition, as shown in FIG. 3, the guide roller 12
By providing short blades 15 on the lower end circumferential surface, it is possible to prevent the tensioned rope from falling at the bend in the cable extension line.

[Brief explanation of the drawing]

Figures 1A and B are front and side views of a conventional tension rope guide, Figures 2A and B are front and side views of an embodiment of the present invention, and Figures 3A and B are main parts of a modification thereof. FIG. 2 is a plan view and a sectional view. 10... Hanging tool, 12... Guide roller, 14...
...Circumferential groove.

Claims (1)

[Scope of utility model registration request] A device for guiding a tension rope having a plurality of cable suspension ropes disposed along a running track, the lower end portions of which are arranged with a gap at least equal to the diameter of the cable suspension ropes, and arranged in the axial direction. A stretched rope guide for an automatic wire stretching apparatus, comprising a pair of guide rollers having circumferential grooves having an arcuate cross section and a radius of curvature equal to the diameter of the stretched rope at opposing positions in the middle part.