JP2000274070A - Angular support for temporary scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fit a handrail frame and a scaffold support bar board simply, safely, reliably and firmly by protruding many protruded steps at fixed intervals on the outer periphery of an angular support, and forming many recessed steps at fixed intervals between the protruded steps in turn. SOLUTION: Many protruded steps 2 are formed at fixed intervals on the vertical outer periphery of an angular support 1 supporting a handrail frame 10 and a scaffolding board 14 for a temporary scaffold. Many recessed steps 3 are formed between the protruded steps 2 in turn. Branch coupling sections 11 at one end section of the handrail frame 10 are inserted into the recessed steps 3 of the angular support 1. A coupling section 13 at the other end section of the handrail frame 10 is coupled with the angular support 1 from a coupling recess 12 between the branch coupling sections 11 for use. The coupling work can be conducted very easily and reliably, and the handrail frame 10 can be coupled and connected to the angular support 1 safely and firmly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rectangular pillar used for a temporary scaffold at a construction site, and is intended to be able to easily and securely mount a handrail frame, a scaffold supporting rod, and the like securely. It relates to a rectangular support for scaffolding.

[0002]

2. Description of the Related Art Conventionally, a column for a temporary scaffold is used in the form of a circular tube or a square tube. When a support frame for a handrail frame and a scaffold plate is attached to the column, the column is used for a column or the like. On the other hand, at present, it is common practice to join a circular or square handrail frame and a support rod of a scaffold plate in an orthogonal shape and to fix them with various kinds of fastenings.

[0003]

In the prior art, various fasteners for fixing a handrail frame and a scaffold plate support rod to a support are fixed to each frame crossing the support by fastening the respective fasteners. However, even if the tightening work requires careful attention, there are problems such as loosening, detachment, eccentricity, and falling or breakage. The present invention has been made to solve the above-mentioned conventional problems, and its main object is to provide a handrail frame and a scaffold plate supporting rod used when assembling a temporary scaffold with respect to an end of a rectangular column. The part is easily fitted to and attached to the concave arc part, so that it can be assembled firmly, and the protrusions at predetermined intervals prevent the falling, and the square pillars are toughened to make the appearance excellent in appearance. It is intended to provide a rectangular support for a scaffold.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a rectangular support on which a handrail frame for a scaffold, a scaffold plate support rod, and the like are mounted. The parts are protruded. A number of concave arc steps are formed alternately at regular intervals between the projecting steps. Further, an upper semi-projecting step and a lower semi-projecting step which are half the vertical width of the projecting step are formed at the upper end and the lower end of the rectangular column.

[0005]

The use of the scaffolding rectangular strut constructed as described above will be described. The rectangular strut (1) shown in FIG. 2 is divided into, for example, one end of a handrail frame (10) as shown in FIG. The engaging portions (11) and (11) are recessed steps (3) of the rectangular column (1).
(3) is fitted as shown in FIG. Further, as shown in FIG. 6, the engaging portion (13) at the other end of the handrail frame (10) is formed in a rectangular column (FIG. 6) from the engaging concave portion (12) between the branch engaging portions (11). It is used by fitting in 1). The openings of the branch engaging portions (11) and (11) and the engaging portion (13) are fixed using cutter pins or the like.

[0006]

In order to achieve the above object, according to the rectangular pillar for a temporary scaffold of the present invention, a method for supporting a handrail frame (10) and a scaffold plate (14) for a temporary scaffold in FIGS. The rectangular support (1) having a shape is made of a rectangular aluminum or steel, etc., and the rectangular support (1) is provided with a plurality of projecting steps (2) at predetermined intervals on the outer periphery in the vertical direction.
(2) ... are formed in a protruding manner. Early protruding step (2)
(2)... Are formed so as to alternately form several concave arc steps (3) (3).

Further, an upper semi-protruding step (5) having a width approximately half the vertical dimension of the protruding step (2) is formed at the upper end of the prism (1). On the upper part of the upper semi-projecting step (5), a fixed joint (7) for connection provided with a connecting groove (8) is formed. Also, at the lower end of the prism (1),
A lower semi-projecting step (6) having a half of the vertical width of the projecting step (2) is formed in a projecting manner. An engagement pin (9) for engaging with the connection groove (8) is provided substantially above the lower semi-projecting step (6).

Next, as shown in FIG. 5 and FIG. 6, the handrail frame (10) used for the rectangular column (1) is divided into two branches having a U-shaped opening at one end. Branch engagement part (1
1) While forming (11), engaging recesses (1)
2) is provided. At the other end of the handrail frame (10), an engaging portion (13) having a U-shaped opening that can be fitted and coupled to the engaging concave portion (12) is formed. Sign (1
4) shows various scaffolding boards, and (15) shows the handrail frame (1).
A guide rail for a safety chain attached to the side of 0),
(16) shows an ascending and descending adjustment base provided at the lower end of the rectangular column (1), and (17) shows a structure.

[0009]

As described above, according to the rectangular pillar for a temporary scaffold of the present invention, various handrail frames, mounting brackets for a scaffold plate supporting rod, horizontal member frames, streaks and the like are used for the temporary scaffold. If each of the end portions has a square shape, the fitting operation can be performed extremely easily and reliably, and the fitting can be securely and firmly connected to the rectangular column. And, by the protruding steps provided at predetermined intervals on the outer periphery of the square pillar and the concave arc steps provided alternately, the strength of the square pillar is remarkably strengthened, and the separation of construction materials such as various handrail frames and the like can be performed. There is an effect that falling can be prevented and construction can be remarkably and firmly performed. Also, by forming upper half protruding step portions and lower half protruding step portions, each of which is half of the protruding step portion, at the upper end portion and the lower end portion of the rectangular column, the same size as the protruding step portion when connected vertically. Thus, there is an advantageous effect that the aesthetic appearance is excellent, and a predetermined interval of the width dimension with the concave arc-shaped step portion is reliably formed.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a state in which the present invention is mounted on various structures, with one part removed.

FIG. 2 is a perspective view of the rectangular column according to the present invention, with a part thereof being omitted.

FIG. 3 is a perspective view of a separated state in which a lower end and an upper end of the rectangular column according to the present invention are partially omitted.

FIG. 4 is a perspective view showing a connected state of the rectangular pillars according to the present invention, with one part removed.

FIG. 5 is a perspective view of the square pillar according to the present invention, in which one end of a handrail frame or the like is attached to the rectangular pillar, with a part thereof being omitted.

FIG. 6 is a perspective view showing a state in which a handrail frame is mounted on the rectangular support of the present invention.

FIG. 7 is a perspective view showing a state in which an adjustment base is provided at the lowermost end of the rectangular column according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Square support 2 Protrusion step 3 Concave arc step part 5 Upper semi-projection step part 6 Lower semi-projection step part 7 Fixed joint part 10 Handrail frame 11 Branch engagement part 12 Engagement recess 13 Engagement part 14 Scaffold plate

Claims (2)

[Claims] A temporary pillar for a temporary scaffold to which a handrail frame for a scaffold, a scaffold plate support rod, and the like are attached.
Is provided with a plurality of projecting steps (2), (2), (2)... At predetermined intervals on the outer periphery in the vertical direction, and the projecting steps (2)
(2) A rectangular pillar for temporary scaffolding, wherein a large number of concave arc portions (3), (3), (3). 2. The rectangular column (1) according to claim 1, wherein an upper semi-projecting step (5) and a lower semi-projecting step having a half of the vertical width of the projecting step (2) at an upper end and a lower end. The rectangular column for a temporary scaffold according to claim 1, wherein each of said portions has a projecting portion.