JP3077741U - Prop for main rope - Google Patents

Abstract

(57) [Summary] (Problem corrected) [Problem] To provide a main rope support that can be attached with sufficient supporting force even when a force is applied from a direction orthogonal to the tension direction of the main rope. A hanging portion 6 composed of a hook 6a for entanglement of a parent rope 10 is provided on an upper portion of a tubular column 1 having a rectangular cross section, and a holding portion composed of an upper jaw 3b and a lower jaw 3c on the lower left and right side surfaces. The opening of the plate 3a is protruded and fixed facing toward the front to form a holding portion 3, and screw holes are formed at four positions of a rectangular shape spaced at a surrounding shape on a support plate 4 having a large depth fixed to the holding portion 3. 4a are arranged side by side in parallel with the front surface of the column 1, and a fastening screw 5 having a fastening seat at the lower end is screwed into a screw hole and formed so as to be fastened toward the lower jaw 3c to form the mounting portion 2. Prop for parent rope.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a column that supports a main line that is stretched along a scaffold at a construction site.

[0002]

[Prior art]

 This type of main rope support is a support that supports the main rope that extends along the length of the scaffold, and the mounting part at the lower part of the support is detachably attached to the outside of the scaffold at regular intervals. The main line is supported and supported by the main line anchoring section above it. The safety hook at the end of the lifeline to be hung on the worker's belt is hung on this main line and falls from the scaffold during work. It is to prevent.

[0003] Conventional main rope supports are mainly used for supporting the main rope in a direction along the length (walking) direction of the beam section of the building by scaffolding or H-shaped steel or the like. The struts and mountings have been configured to provide support in the direction along the outside of the.

Accordingly, the tightening screws in the mounting portion are provided at two points parallel to the front surface of the column while being parallel to the front surface of the column. The strut had a strong supporting force in the left and right direction along the length of the scaffold or beam, but had a weak supporting force in the inside and outside (front and rear) directions perpendicular to the scaffold or beam.

[0005]

[Problems to be solved by the invention]

 Because of the structure of the main rope support, the support installed on the scaffold or beam has a mounting structure and strength configuration that does not take into account the supporting force of the scaffold in the inward and outward directions. The support force against the inward and outward deflections perpendicular to the direction is relatively weak, and if a force is applied in that direction, there is a possibility that the support cannot be completed.

[0006] In a large-scale building site, there is a case where a person walks directly as a scaffold on a beam made of shaped steel, which is a framework of a building structure, and in this case, the walking direction extends in multiple directions only to the beam of the building. However, the support direction of the main rope supported by the struts also needs to be stretched in a cross shape perpendicular to the walking direction, and thus there has been a problem that the conventional unidirectional support for the main rope can not cope.

For example, when a worker accidentally leans inward and outward during work, and a large inward and outward force is applied to the master rope, the mounting portion of the column supporting the master rope cannot withstand this. There was a danger of the ropes coming off the beam together with the ropes, and in order to avoid this, it was sometimes necessary to arrange a plurality of main rope supports at different locations in different mounting directions. The purpose of the present invention is to solve these problems and to increase the support capacity of the main strut support in multiple directions.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides, at the lower part of a column provided with a parental hooking part at an upper portion, a holding portion which is opened forward by an upper jaw and a lower jaw, and is provided on the upper jaw of the holding portion. Screw holes are provided at three or more surrounding positions on a plane at intervals, and tightening screws are screwed into these screw holes to form a support for the main rope as a mounting part, and a scaffold or building structure at a building site The support column for the main rope is gripped from the outside by the outside of the beam, which is the skeleton of the frame, and three or more points of surrounding support that tighten the tightening screws that are arranged in a spaced-apart manner are used to stand upright. The present invention proposes a main rope support that can strongly support a load in multiple directions, that is, left and right along the length (walking) direction of the scaffold and in and out (front and back) perpendicular to the direction.

[0009]

[Embodiment of the invention]

 An embodiment of the main rope support according to the present invention will be described. A hook-shaped portion formed of a hook and rod for entanglement of the main rope is provided at the upper part of a tubular support having a rectangular cross section made of metal material, and the left and right side surfaces of the lower part are provided. The opening of the holding plate made of a metal material having an upper jaw and a lower jaw is fixed to the holding portion by projecting and fixing the opening toward the front, and horizontally fixed between the protruding upper jaws of the holding portion. Screw holes parallel to the front surface of the column are arranged side by side at four places of a rectangular shape spaced apart in a surrounding shape on a support plate with a large depth, and a tightening screw with a tightening seat at the lower end is attached to the screw hole. An attachment part is formed so as to be screwed and tightened toward the lower jaw, thereby forming a main rope support.

[0010] A tubular reinforcing member having a rectangular cross section with a width smaller than the width of the column is attached along the height direction on the back surface of the column. With the opening of a certain holding part facing toward you, you can hold it from the outside, tighten the four tightening screws downward, hold the beam as a scaffold between the tightening seat and the lower jaw, and fix the column. It is supported by attaching a main rope that is stretched along the beam to the support section at the top of the column, which is sequentially erected at predetermined intervals. The hook on the tip is slidably hooked.

[0011]

【Example】

 Hereinafter, an embodiment of the main rope support of the present invention will be specifically described with reference to the drawings. FIG. 1 is a front view of the main rope support for implementing the present invention, and FIG. 2 is a rear view of the same main support. FIG. 3 is an enlarged vertical sectional view of a main part of the main rope support, and FIG. 4 is a perspective view of the main rope support attached to the beam of the building structure.

[0012] The main rope support is composed of two hooks 6a, 6a on an upper plate 1a mounted on an upper end surface of a support 1 having a rectangular cross-section made of a metal material and having a wide surface in front and rear. The hooks are planted in a back-to-back fashion with the hooks facing upward and to the left and right, and a horizontal rod is fixed between the hooks 6a, 6a to form a hooking portion 6 having a ring 6b. An opening is formed by the lower jaw 3c, and two holding plates 3a, 3a made of a metal material having a thick portion on each outer side are opposed to the left and right side surfaces of the lower portion of the column 1 with the openings facing forward. The upper and lower jaw portions 3b, 3b are screwed and fixed to each other at four places of a rectangular shape which are surrounded and spaced from each other between the upper jaws 3b, 3b. The support plate 4 having a large depth is horizontally inserted so that the two points of the screw holes 4a and 4a are arranged in parallel with the front surface of the support column 1. The beam plate 4b is horizontally inserted between the lower jaw portions 3c and 3c and welded and fixed. Tightening screws 5 and 5 having a tightening seat 5a at the lower end of the screw holes 4a and 4a are screwed respectively. Attached and configured as the mounting portion 2.

A reinforcing member 7 composed of a rectangular tube having a cross section smaller than the width thereof is welded and attached to the back surface of the column 1 along the height direction extending from the mounting portion 2 to the center upper portion. By reinforcing the supporting force and welding and fixing a U-shaped handle 8 to the lower center of the front surface of the support 1, the support for the main rope can be supported in a well-balanced manner, and it is easy to carry. Reference numeral 3d denotes a reinforcing rib provided on the front surface of the column 1 and on the support plate 4.

Next, an example of the use of the column 1 will be described with reference to FIG. 4. A beam at a building site, in particular, as a frame of a building structure made of a shaped steel material such as an H-beam, extends in various directions. The supporting column 1 is slid from the outside to the crossing corner 9a of 9 and the opening holding portion 3 of the mounting portion 2 is held in the beam portion 9 from the side, and the four-point fastening screws 5 and 5 are tightened. The beam 9 is clamped and clamped between the clamping seats 5a, 5a of the clamping screws 5, 5 and the lower jaws 3c, 3c of the clamping section 3, and the column 1 is erected outside the corner 9a. The hook 10a is hooked and supported on the ring portion 6b of the hooking portion 6 to be stretched. In addition, although the drawings are omitted, in a straight beam portion other than the corner portion 9a, the support column 1 is similarly erected and clamped outward at a predetermined interval, and the support column 1 is erected directly, and the middle of the master rope 10 is directly hung. It is entangled and supported by the hook rods 6a of the attachment section 6 and stretched.

In the above-described embodiment, the holding portion 3 of the mounting portion 2 has been described as being constituted by the left and right separate holding plates 3a and 3a provided with thick portions in consideration of light weight and strength. Various configurations are possible, such as an integrally formed holding portion that forms an opening toward the front with the upper jaw and the lower jaw. The strut 1 and the hooking portion 6 also have the same configuration as that described in the above embodiment. In addition, the support 1 is optimal because the tube structure is lightweight, but the hanging portion 6 can be arbitrarily formed, such as a solid rod-shaped structure, or the inverted U-shaped ring material.

Although the screw holes 4a formed in four squares have been described, the screw holes 4a can be provided in three triangular places or five pentagonal places. In this case, the position and number of the reinforcing ribs 3d are appropriately changed. Things.

[0017]

[Effect of the invention]

 The main rope support of the present invention is configured as described above, and the upper and lower jaws of the mounting portion are widened, and are fastened and supported at three or more locations by surrounding screws at three or more locations. Since the supporting capacity of the mounting part extends in multiple directions, it is possible to strongly attach the main column support to the scaffold or beam, and also to support the horizontal and vertical loads by the main rope. It can withstand enough, and enhances the safety of the parent support.

In addition, since it is possible to easily cope with a complicated intricate scaffold or beam that requires the main rope to be stretched in a cross-shaped multi-direction, the main rope support can be oriented in multiple directions. This can save a lot of work, as well as reduce the number of supporting ropes for the parent line.

[Brief description of the drawings]

FIG. 1 is a front view of a main rope support for implementing the present invention.

FIG. 2 is a rear view of the main rope support of FIG. 1;

FIG. 3 is an enlarged longitudinal sectional view of a main part of a main rope support column in FIG. 1;

FIG. 4 is a perspective view showing a use state of the parent rope support of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop 2 Mounting part 3 Nipping part 3b Upper jaw part 3c Lower jaw part 4a Screw hole 5 Tightening screw 6 Hanging part 7 Reinforcement member 8 Handle

Claims (4)

[Utility model registration claims] An upper jaw and a lower jaw are provided at a lower portion of a support provided with a parent rope attachment portion at an upper portion with a holding portion that opens toward the front, and three or more surrounding portions are provided on the upper jaw of the holding portion. A supporting column for a parent rope, which is used as a mounting part by screwing a tightening screw into a vertical screw hole provided at intervals in a shape. 2. A lower part of a column having an upper part provided with a parental hooking part is provided with a holding part which is opened forward by an upper jaw part and a lower jaw part, and four surrounding parts are formed on the upper jaw part of the holding part. A support column for a parent rope, which is used as a mounting portion by screwing a tightening screw into a vertical screw hole provided at an interval. 3. The supporting column for a main rope according to claim 1, wherein the supporting column has a reinforcing member attached to a rear surface from a mounting portion to an upper central portion. 4. The main column support according to claim 1, wherein the column includes an annular handle provided at a lower center portion of a front surface.