JPH0223330Y2 - - Google Patents

Description

[Detailed description of the invention] This invention allows a lifeline rope to be firmly and reliably attached to a material with an appropriate outer diameter from a small diameter to a large diameter. Concerning a lifeline rope that can be prevented from being tightened.

Conventionally, when constructing roofs or walls, there is a danger of falling due to the height, so the use of lifeline ropes has been required by industrial safety and health regulations, and there are various types of lifeline ropes. There is. The holes and openings of the fixing fittings fixed to the end of this lifeline rope are of a certain size, so they can be inserted into small-diameter objects (main ropes, etc.), but they can be inserted into large-diameter purlins, trunks, etc. Structural materials such as A have the disadvantage that they cannot be inserted, and for this reason, it is often extremely difficult to use the lifeline rope when constructing roofs or walls. In addition, if the end of the lifeline rope is tied in a loop around a structural member a such as a main building or trunk without using a fixing metal fitting at the end of the lifeline rope (see Figure 8), it will be difficult to carry out work. At times, when the worker moves in the left-right direction, the ring-shaped portion becomes tightened against the structural material as shown by the dotted line in Figure 8, making it impossible for the worker to move in the left-right direction.

Therefore, in the present invention, a connecting metal fitting is fixed to one end of the connecting rope, two clamping plates each having a semicircular bent part formed in the center of the plate piece are placed opposite each other, and the bending of the two clamping plates is Insert the other end of the connecting rope between the sections, insert both ends of the U-bolt into the holes on both sides of the two clamping plates, and screw the nuts to secure the other ends of the clamping plate and the connecting rope. By tightening and fixing the rope and tying the other end of the connecting rope protruding from the clamping plate to the U-bolt, you can use this to firmly and reliably attach the lifeline rope to structural materials such as large-diameter main buildings. This eliminates the above-mentioned drawbacks, since it can be attached easily and not be tightened when the worker moves from side to side, etc., making it extremely safe even when working in high places such as roof construction.

The structure will be explained with reference to the drawings.

1 is a connecting rope, and a connecting fitting 2 is fixed to one end of the connecting rope 1 (on the right side in FIG. 1). In the exemplary embodiment, the coupling fitting 2 is designed as a clip (see FIG. 1). 3 is a holding plate with a semicircular shape (Fig. 2,
A bent portion 3b is formed in the shape of an inverted V (see FIG. 5), a gate shape (see FIG. 6), etc., and through holes 3c, 3c are formed on both sides of the plate piece 3a, respectively. It is perforated. The two clamping plates 3, 3 face each other, and the through holes 3c, 3c at both ends of the clamping plates 3, 3
The bolt shaft portions on both sides of the U-bolt 4 are inserted into the bolt shaft portions, and nuts 5, 5 are tightened to the bolt shaft portions from both sides of the clamping plates 3, 3. By tightening, the other end (the left side in FIG. 1) of the connecting rope 1 inserted therein can be clamped. The other end of the connecting rope 1 protruding from the clamping plates 3, 3 is formed into a ring shape, and the other end thereof is tied to approximately the center of the U-bolt 4 (see FIGS. 1 and 2). When the ring-shaped portion on the other end side of the connecting rope 1 is to be made to an appropriate size, the holding plates 3, 3 are appropriately shifted (see dotted lines in Figure 1).

In the figure, 6 is a rib provided on the inner surface of the bent portion 3b of the holding plate 3, 7 is a structural member such as a purlin or a rim, and 8 is a safety belt.

Next, the effects will be explained.

In the present invention, a coupling fitting 2 is fixed to one end of a coupling rope 1, and two clamping plates 3, each having a bent part 3b bent in a semicircular shape or the like in the center of a plate piece 3a, are placed opposite each other. The bent portions 3b, 3 of the clamping plates 3, 3
Insert the other end of the connecting rope 1 between the holes 3c, 3c on both sides of the two clamping plates 3, 3.
Insert both ends of the bolt 4 and screw the nuts 5, 5 to clamp and fix the clamping plates 3, 3 and the other end side of the connecting rope 1, and the end of the connecting rope 1 protruding from the clamping plates 3, 3. By tying the end to the U-bolt 4, the lifeline rope of the present invention can be firmly and reliably attached to structural members 7 such as large-diameter main buildings, and can be tightened easily by workers moving from side to side. It has the advantage of being extremely safe even when working in high places such as roof construction.

To explain the function and effect in detail, in roof construction etc., there are various troublesome aspects to erecting the parent rope,
On the other hand, in roof construction work, etc., a large number of structural members 7 such as purlins and girders are always installed at regular intervals, and although these structural members 7 have a relatively large diameter, the clamping plates 3 of the present invention are tightened. Loosen the nuts 5, 5, and send the other end of the connecting rope 1 further outward.
By enlarging the annular portion appropriately and tightening it again, it can be reliably and easily attached to the structural member 7 (material to be attached), and the size of the annular portion can always be kept constant. has a certain size and is firmly fixed by tightening and fixing the clamping plates 3, 3, so even if the worker moves from side to side, it will not be tightened by the structural member 7. As shown in FIG. 7, by attaching the lifeline rope coupling fitting 2 of the present invention to the safety belt 8, high-place work can be made extremely safe, and work efficiency in roofing, wall construction, etc. can be improved.

[Brief explanation of the drawing]

Figure 1 is a partially sectional side view of the present invention;
The figure is a perspective view of the main part of the present invention, Figure 3 is a partially sectional front view of Figure 2, Figure 4 is a sectional view taken from Figure 3 - arrow direction, and Figures 5 and 6 are different implementations. FIG. 7 is a front view of the holding plate of the example, FIG. 7 is a diagram of the present invention being attached to the trunk rim, and FIG. 8 is a cross-sectional view of one end of a conventional lifeline rope being attached to the trunk rim. DESCRIPTION OF SYMBOLS 1...Joining rope, 2...Joining metal fittings, 3...Holding plate, 3a...Plate piece, 3b...Bending portion, 3c...
Through hole, 4...U bolt, 5...nut.

Claims (1)

[Scope of utility model registration request] A coupling fitting is fixed to one end of the coupling rope, two clamping plates each having a semicircular bent part formed in the center of the plate piece are placed facing each other, and the coupling is made between the bent parts of the two clamping plates. Insert the other end of the rope, insert both ends of the U bolt into the through holes on both sides of the two clamping plates, and screw the nuts to tighten and fix the clamping plate and the other end of the connecting rope, A lifeline rope characterized by having the other end of a connecting rope protruding from the clamping plate tied to the U-bolt.