JPS5850488B2 - Intermediate holding tension device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intermediate holding/pulling tool for holding and pulling the middle part of a long object.

Conventionally, in order to pull a long object such as a telephone line cable, the inside of the conduit was first wrapped around the tip of the cable, and then a rope was hooked onto this. When the work arrived, it became impossible to do the tensioning work with a puller, so we used a puller, which required the appropriate skills and input, and took an uneconomical amount of time.

The present invention has been made in view of the problems of the prior art described above and has been made to solve the problems, and an object of the present invention is to provide a novel intermediate holding tensioning tool that can perform tensioning operations smoothly and reliably.

Hereinafter, the present invention will be described according to an illustrated embodiment.

Reference numeral A denotes an intermediate holding and tensioning device, which is composed of a cam body cover a, a cam body, and the like.

The cam strength bar a is configured such that the two semi-cylindrical covers 1 are hinged on one abutting edge 1a side and fixed in an openable/closable manner on the other abutting edge 1b side, and each abutting edge of each semi-cylindrical cover 1 is attached to the cam strength bar a. 1a,
A long hole 2 parallel to these abutting edges is provided at a portion approximately 90 degrees out of phase from 1b, and guide portions 3 of the cam body are provided upright on both side edges of the valley elongated hole 2. ing.

The hinge on the one butting edge 1a side is a - semi-cylindrical cover 101.
A protruding piece 101a protruding in a comb-like shape on the abutting edge 1a side has an axial pin hole 101b, and the other semi-cylindrical cover 102 has an axial pin hole 101b.
A protruding piece 102a protruding in a comb-teeth shape toward the abutting edge 1a side has an axial pin 102b, and the pin 102b is fitted into the pin hole 101b.

The fixation on the other butting edge 1b side is -〇 semi-cylindrical cover 101
A protruding piece 101c that protrudes toward the abutting edge 1b side of the other half-cylindrical cover 102, and a protruding piece 102 that protrudes toward the abutting edge 1b side of the other semi-cylindrical cover 102.
c is configured to be fastened and fixed by a fastener 4 so that it can be opened and closed freely.

The elongated hole 2 has a width d sufficient for the fin-like piece 5 of the cam body to be inserted, which will be described later, and always leaves a gap at the front edge 5a when holding and pulling a predetermined elongated object 6. is formed to have a length l.

The guide part 3 is formed in a gate shape so as to straddle the elongated hole 2, and its top side 3a is inclined so that the direction of the tensile force is low, and its side sides 3b have wire rods 7 directed inward. It is screwed in and engages with a cam groove 501 on the side surface of the fin-like piece 5.

The cam body includes a holding plate 8 with a long arcuate cross section located inside the cover a, and a tensioning part 9 attached along the longitudinal direction of the back side of the holding plate 8 and protruding from the elongated hole 2. It is composed of fin-like pieces 5.

The holding plate 8 is a body part of a long object 6, which is a predetermined object.
They are held in contact with each other from directions that are out of phase by 80 degrees.

The upper edge 5b of the fin-shaped piece 5 is formed into an inclined edge that is lower in the tensile direction and substantially coincides with the top edge 3a of the guide portion 3, and cam grooves 501 are carved on both sides so as to substantially match the inclination angle. It is set up.

A ring 9 serving as a tension portion is attached to the front of the fin-like piece 5.

Next, the main functions of the intermediate holding/pulling device A constructed as described above will be explained together with its usage.

First, the fastener 4 of the cam strength bar a is released, the cover a is closed so as to surround the target long object 6, and the fastener 4 is tightened.

Subsequently, a tension rope 10 is tied around both rings 9 and pulled.

At this time, the cam grooves 501 of both fin-like pieces 5 are connected to the wire rod 7.
, and its upper edge 5b is guided by the top edge 3a of each guide part 3, so that it sinks inside each elongated hole 2,
Each holding plate 8 moves toward the axis and holds the elongated object 6.

Since these rings 9 are pulled and the rear part of the valley fin-like piece 5 sinks a lot, the elongated object 6 is particularly strongly held and pulled by the wide part of each holding plate 8.

As described above, according to the present invention, there is provided a cam strength bar in which one side edge in the axial direction of a pair of semi-cylindrical covers is hinged to each other, and the other side edges are connected to each other by a fastener. A pair of cam bodies each having a holding part for holding a long object inserted through the cam body cover, each of the pair of semi-cylindrical covers having a long hole extending in the axial direction, Each holding part of the cam body has a piece projecting from a long hole, and a guide part is provided on the side edge of the long hole to abut on the upper part of the fin piece. The portion where the upper edge abuts and the upper edge are each formed into a tapered shape, and the temporal head of the fin-like piece is provided with an inclined groove parallel to the upper edge,
Since the guide portion is provided with a wire rod that movably engages with the inclined groove, long objects can be moved smoothly and easily even in crowded places.
It also has the advantage of being able to be pulled reliably.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of an intermediate holding/pulling device according to the present invention, Fig. 2 is a partially broken front view of the same intermediate holding/pulling device as described above, and Fig. 3 is a partially cut away side view of an intermediate holding/pulling device according to the present invention. FIG. 4 is a perspective view of a cam body of the intermediate holding/pulling tool. A...Intermediate holding tension tool, 1...Semi-cylindrical cover, la, lb...1 abutting edge, 2...
... Long hole, 3 ... Guide part, 4 ... Fastener, 5 ... Fin-like piece, 610. ...Long items,
7... Line rod, 8... Holding plate.

Claims (1)

[Claims] 1. A cam strength bar in which one side edge in the axial direction of a pair of semi-cylindrical covers is hinged to each other, and the other side edge is connected to each other by a fastener, and a long length that is inserted through the cam strength bar. A pair of cam bodies each having a holding part for holding an object, each of the pair of semi-cylindrical covers is provided with a long hole extending in the axial direction, and each of the holding parts of the pair of cam bodies has a A fin-like piece protruding from the elongated hole is provided upright, and a guide part that comes into contact with the upper part of the fin-like piece is provided on the side edge of the elongated hole, and the part that the upper part of the guide part comes into contact with. The upper edges are each formed into a tapered shape, and the side surface of the fin-like piece is provided with an inclined groove parallel to the upper edge, and the guide portion is provided with a wire rod that movably engages with the inclined groove. An intermediate holding tensioning device characterized by: