JP2547013Y2 - Parent rope support - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main rope support used for hanging a main rope as a temporary safety tool for construction work.

[0002]

2. Description of the Related Art Some of the main rope supports are attached to a framed scaffold, and those attached to a beam steel frame are, for example, as shown in FIG.

[0003] In this method, a main body 1 is formed of a rectangular metal pipe, an upper end thereof is formed with a hook portion 2 for a main rope formed of an annular body, and a lateral opening 4 for sandwiching a steel frame flange, and this opening 4 is formed. A U-shaped holding portion 3 is formed at the lower end of the column main body 1 and includes a crimping screw 5 that penetrates and moves up and down. In the figure, reference numeral 6 denotes a handle used when carrying the main rope support.

[0004] Although not shown, an upper flange of the beam steel frame is inserted into the opening 4 and the end of the crimping screw 5 is pressed against the upper flange to fix the entire column to the beam steel frame. In this way, since the main rope support is erected from the beam steel frame, the end of the main rope is fixed to the hanging portion 2 via a metal fitting such as a carabiner, and the main rope is hung between the main rope supports.

By the way, when the pitch between the main rope supports is long, an intermediate main rope support may be erected between them. In such a case, the hook 2 formed at the upper end of the intermediate main rope support is used.
After inserting the end of the main rope into the ring of the above and hanging the middle of the main rope on the middle main rope support, attach a bracket such as a carabiner to the end of the main rope and fix it to the end main rope support. Also, attach the tensioner to the end of the main line and tighten the main line.

[0006]

[Problem to be solved by the invention] When erecting the intermediate support, it is necessary to insert the middle of the main support into the ring at the upper end of the intermediate support before fixing the end of the main support to the main support. Procedures are limited and workability is not good.

Therefore, as shown in, for example, Japanese Utility Model Application Laid-Open No. 63-135653, an inverted L-shaped member in which the hooks of the master rope to the intermediate master rope support are projected in opposite directions and with a space therebetween. By inserting the middle of the main rope alternately from the side into this inverted L-shaped member, even after both ends of the main rope are fixed to the main rope support, the middle of the main rope is hooked to the intermediate support. Some have made it possible.

However, in Japanese Utility Model Application Laid-Open No. 63-135653, there is a risk that the main rope is not restrained at a fixed position and the swing range is large, so that the main rope may come off due to recoil. In addition, it is limited to an intermediate support and cannot be used as a main support to fix the end of the main support. Then, since the hooking portion is fixed to the support body by welding or the like, if only the hooking portion is damaged, it is necessary to replace the entire main rope support with a new one, which increases costs.

An object of the present invention is to eliminate the disadvantages of the prior art, and even after fixing the end of the main rope to the main rope support, it is possible to hang the middle of the main rope on the intermediate support in the same state and to counteract the reaction. There is little danger of the main rope coming off, and it can also be used as a main rope support to fix the end of the main rope or as an intermediate support, and it is widely used.Furthermore, it is easy to replace only the hanging part and repair costs etc. The object is to provide an inexpensive parental support.

[0010]

According to the present invention, in order to achieve the above object, a metal pipe support is formed at the upper end of a pillar main body, and a lower end of the metal pipe is detachably attached to a steel frame flange. In the main rope supporting column, a first hooking portion having a main rope mounting hole formed so that the hanging portion protrudes laterally above the main pillar body, and a gap at an upper end of the main pillar body. And a second hooking portion formed by an upwardly projecting member provided with a notch with a diagonally downward slope formed on the side and opposed to each other and formed in opposite directions, and hooking. A first hook portion formed by a horizontal plate at the upper end of the column main body, a second hook portion erected above the horizontal plate, and a hanging wall formed facing the lower portion of the first hook portion. Comprising, detachably attached to the upper end of the pillar body via the hanging wall, and
The gist of the invention is that the hooking portion is formed by a piece of an extruded aluminum alloy.

[0011]

According to the first aspect of the present invention, the main rope is hung by fixing the end of the main rope to the main rope mounting hole of the first hooking section, and the second hooking section is fixed. Even if both ends of the main rope are fixed to the first hook portion by alternately inserting the middle of the main rope into the notch space, the middle can be hooked on the middle main rope support and the notch space in the opposite direction. As a result, the main rope can be restrained at a fixed position, so that the swing range is small. In addition, since the notch space is directed obliquely downward, there is little danger that the main rope will come off due to recoil. In addition, this main rope support can be used both as a main rope support for fixing both ends of the main rope and as an intermediate main rope support.

According to the second aspect of the present invention, in addition to the above-described operation, the hanging wall of the hanging portion is detachably mounted on the upper end of the column main body, so that replacement when the hanging portion is damaged can be performed. It is possible and the repair cost is low.

According to the third aspect of the present invention, in addition to the above-described operation, the hooking portion is formed of the extruded section of the aluminum alloy, so that the first hooking portion and the second hooking portion are formed. It is easy to manufacture even if it is constituted by a part.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded perspective view showing an embodiment of a main rope support of the present invention, and FIG. 2 is a perspective view showing a use state, in which the same components as those in FIG. It is.

Also in the main rope support of the present invention, the support main body 1 is formed of a rectangular metal pipe, which is formed by a rectangular pipe made of an extruded aluminum alloy material, and the lower half portion has left and right flanges 7a, 7b. Is a wide body that is integrally extended. The flanges 7a and 7b are aligned with one surface of the column main body 1 to form a flat joint surface 8 in this wide body. At this joint surface 8, the flanges 7a and 7b and the column main body 1 are bolted. A bolt insertion hole 16 is to be formed.

In the drawing, reference numeral 2 denotes a hook portion of a main rope mounted on the upper end of the column main body 1, which is formed with an extruded piece of an aluminum alloy and formed so as to protrude to the left and right sides of the column main body 1. A horizontal plate 9 serving as a first hooking portion, and a notched space having an obliquely downward slope formed on the upper surface of the horizontal plate 9 so as to face each other with a space therebetween and formed in opposite sides. A second hook formed by a substantially U-shaped upwardly projecting member 11 provided with a place 10, and a hanging wall formed below and opposed to the first hook.
The first hooking portion has a mounting hole 13 for a parent rope, and the hanging wall 12 has a bolt insertion hole 14 for fastening a bolt to the column body 1. The notch space is formed to have a size slightly larger than the outer diameter of the parent rope.

In the drawing, reference numeral 3 denotes a U-shaped holding portion formed on a steel frame flange formed at the lower end of the column body 1, and a lateral opening 4 for holding the steel frame flange, and penetrates into the opening 4 to move up and down. And made of an aluminum alloy as a material separate from the column main body 1.

The holding portion 3 has a flat joining surface 15 on a surface opposite to the side where the opening 4 is located, and a flat joining surface 8 of the support body 1 is aligned with the joining surface 15 so that a bolt insertion hole 16 is formed. , The support body 1 and the holding portion 3 are fixed with bolts and nuts 17.

Next, the usage will be described. As described above, the column main body 1 and the holding portion 3 are fixed and integrally connected with the bolts and nuts 17. Further, the upper part of the column body 1 is inserted between the opposed hanging walls 12, the bolts 20 are inserted into the bolt insertion holes 14, and the hooks 2 are fixed to the upper part of the column body 1 with bolts and nuts. In this state, the horizontal plate 9 as the first hooking portion projects left and right from the upper portion of the column body 1, and the upwardly projecting member 11 as the second hooking portion is provided above the first hooking portion. Are provided side by side, and the notch cavities 10 project in opposite directions to each other.

The upper flange of the beam steel frame 18 is formed in the opening 4 of the holding portion 3.
18a is inserted, and the end of the crimping screw 5 is pressed against the upper flange 18a to fix the entire column.

In this way, the main rope supports are erected on the beam steel frame 18 with the main ropes positioned at both ends of the place where the main ropes are to be stretched.
A metal fitting 21 such as a carabiner attached to the end of the horizontal plate 9 is hooked into a mounting hole 13 formed in the horizontal plate 9 as a first hooking portion.
The end of the main rope 19 is fixed to the main rope support.

When the span between the main rope supports is long and an intermediate main rope support needs to be erected in the meantime, the same support as the main rope support is erected in the same manner, and the parent at both ends is set up. The middle of the parent rope 19 already stretched between the rope posts is alternately inserted into the notch space 10 formed in the upwardly protruding member 11 as the second hooking part from the front-rear direction. This has already established the parent line
The middle part of 19 can be fixed to the middle main rope support as it is. Further, even when the tensioner is attached to the end of the main rope 19, the middle of the main rope 19 can be fixed to the intermediate main rope support.

Further, even when the middle of the main rope 19 is fixed to the middle main rope support and the end is fixed to the main rope support, a metal fitting 21 such as a carabiner or a tensioner is fixed to the end of the main rope. The main rope 19 can be fixed to the middle rope support while the cable is still attached. In addition, when a safety belt rope or the like is attached to the master rope 19 via a bracket 21 such as a carabiner at the time of work, the bracket 21 passes through the notch space 10 as it is,
It is possible to pass through the middle main rope support without removing it from 19, and the movement of the safety belt rope etc. will be smooth.

If only the hooking portion 2 or the holding portion 3 is damaged, it can be separated from the column body 1 by removing the bolts and nuts 20 and 17, so that only the damaged portion can be replaced.

[0025]

[Effects of the invention] As described above, the main rope support of the invention is:
Even after fixing the end of the main rope to the main rope support, the middle of the main rope can be hung on the intermediate support in the same state, and also as the main support to fix the end of the main rope or as the intermediate support It can be used for a wide range of uses, and it is easy to replace only the hooking part, so that repair costs are low.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a main rope support of the present invention.

FIG. 2 is a perspective view of a main part showing a use state of the main rope support of the present invention.

FIG. 3 is a front view of a main part showing a use state of the main rope support of the present invention.

FIG. 4 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Prop main body 2 ... Hanging part 3 ... Nipping part 4 ... Opening 5 ... Crimping screw 6 ... Handle 7a, 7b ... Flange 8 ... Joining surface 9 ... Horizontal plate 10 ... Notch space 11 ... Upward projecting member 12 ... Hanging wall 13 Mounting hole 14 Bolt insertion hole 15 Joint surface 16 Bolt insertion hole 17 Bolt and nut 18 Beam steel 18a Upper flange 19 Parent line 20 Bolt and nut 21

Continuation of front page (56) References JP-A-4-30075 (JP, A) JP-A 63-23440 (JP, U) JP-A-3-74753 (JP, U)

Claims (3)

(57) [Scope of request for utility model registration] 1. A main rope support having a metal pipe supporting body formed at an upper end of a main body of a main body of the metal pipe and a lower end formed with a detachable holding portion to a steel frame flange. A first hooking portion having a main rope mounting hole formed so as to protrude laterally above the main body; A main rope support, comprising: a second hooking portion formed by an upwardly projecting member provided with a cutout space formed obliquely downward and inclined downward. 2. A first hooking portion, wherein the hooking portion is formed by a horizontal plate at the upper end of the column main body, a second hooking portion erected above the horizontal plate, and a portion below the first hooking portion. 2. The main rope strut according to claim 1, further comprising a hanging wall formed opposite thereto, and being detachably attached to an upper end of the strut main body via the hanging wall. 3. The main rope support according to claim 2, wherein the hook portion is formed by a segment of an extruded aluminum material.