JPH0717708Y2 - Scaffolding equipment for H-shaped steel columns - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial field of application] The present invention relates to a scaffolding installation device for H-shaped steel columns at a construction site.

[0002]

2. Description of the Related Art Conventionally, scaffolds erected on H-shaped steel stanchions have supported lateral arms supporting scaffolding plates in the vertical and horizontal directions in parallel or at right angles to the flanges of the H-shaped steel by means of mounting brackets. Therefore, the mounting direction and shape of the mounting brackets are different between the vertical horizontal arm and the horizontal horizontal arm, so it is necessary to prepare two types of shapes, which is inconvenient, and in the required direction of the outer periphery of the H-section steel. There was a problem that it was difficult to form a scaffold quickly.

[0003]

The object of the present invention is to quickly and safely form a scaffold by one kind of supporting arm in the necessary direction on the outer circumference of an H-shaped steel column.

[0004]

In order to achieve the above object, the present invention proposes to form an annular blade at the tip of a bolt screwed in opposite directions from both outer sides of a vertical groove type metal fitting to form an annular blade. A support arm H formed by projecting a lateral arm on the back surface in the same plane as the depth direction of the vertical groove and obliquely intersecting the depth direction by approximately 45 degrees.
H-shape of the above invention, in which a lateral arm of a scaffolding erection device to a shaped steel strut is formed by a pipe, and the laterally bent lower end of the strut for handrail is detachably inserted from the tip into the pipe to support the strut in an upright state. It is composed of a scaffold erection device on steel columns.

[0005]

Therefore, the vertical grooves 1'of the four vertical groove-shaped metal fittings 1 are fitted into the four flanges 7 of the H-shaped steel column 6 respectively, and the opposed bolts 2 and 2 are rotated to face both sides of the flange 7. The metal fitting 1 and the lateral arms 3 can be fixed to the four flanges 7 in the same horizontal plane by biting the annular blades 2 ′ and 2 ′. Of course, as shown in FIG. 1, the flanges 7 are formed so that the tips of the adjacent lateral arms 3, 3 are separated from each other.
Can be supported so as to be oblique to the direction of 45 degrees.
Adjacent support arms 4 and 4 have the same shape as each other, but by attaching them to adjacent flanges 7 and 7 by turning them upside down, adjacent lateral arms 3 and 3 can cross each other at an opening angle of 90 degrees. . Then, scaffolding plates 8 are placed on the 90-degree crossing lateral arms 3 and 3 in a 90-degree crossing state to form a scaffold 9.

Further, the laterally bent lower end portion 5'of the handrail supporting column 5 is fitted to the tip of the lateral arm 3 by the pipe 3 ', the column 5 is fixed upright, and the handrail 10 is horizontally mounted on the upper end portion thereof. Ingredient 1
It can be fixed by 1.

[0007]

Example: Bolts 2 and 2 are screwed in opposite directions from both outsides of the vertical groove type metal fitting 1 into the inside of the vertical groove 1'on the front surface of the metal fitting 1, and annular blades 2'are provided at the tips of both bolts 2 and 2. Forming a circular blade 2 '
A conical blade 2 "is provided at the center of the metal fitting.
On the back surface of the vertical groove 1 ', a horizontal arm 3 obliquely intersecting with the depth direction of the vertical direction 1'by approximately 45 degrees is provided by welding with a pipe 3'to form a support arm 4 by welding 12'.

The laterally bent lower end 5'of the handrail supporting column 5 is inserted from the front end opening of the lateral arm 3 by the pipe 3 ', and the supporting column 5 is fixed in the upright state with the tightening bolts 12. A horizontal pipe handrail 10 is fixed to the upper end by a mounting member 11, and scaffold plates 8 are placed on the lateral arms 2 and 2 as shown in FIG. 1 to form a scaffold 9.

[0009]

Since the present invention is constructed as described above, only the plural supporting arms 4 having the same shape are used, and the four flanges 7 of the H-shaped steel column 6 are slanted at an angle of approximately 45 degrees with respect to the direction of the flange 7. The lateral arm 3 can be supported in all directions, and the scaffold 9 is attached to the H-shaped steel column 6.
There is an effect that can be quickly and easily formed.

[Brief description of drawings]

FIG. 1 is a plan view showing a scaffold erection device for H-section steel of the present invention.

FIG. 2 is a partial front view of FIG.

FIG. 3 is a plan view of a support arm.

FIG. 4 is a front view of FIG.

FIG. 5 is a front view of a handrail support column.

FIG. 6 is a plan view of a scaffold.

FIG. 7 is a plan view showing another example of the scaffold.

FIG. 8 is a plan view of a conventional scaffold.

FIG. 9 is a plan view of a conventional scaffold.

FIG. 10 is a plan view of a conventional scaffold.

[Explanation of symbols]

 1 vertical groove type metal fitting 1'vertical groove 2 bolt 2'annular blade 3 lateral arm 3'pipe 4 support arm 5 handrail support 5'laterally bent lower end

Claims (2)

[Scope of utility model registration request] 1. An annular blade is formed at the tip of a bolt screwed in opposite directions from both outsides of the vertical groove type metal fitting, and the back surface of the metal fitting is formed in the same plane as the depth direction of the vertical groove. A scaffold erection device for an H-shaped steel strut consisting of a supporting arm formed by projecting a lateral arm that obliquely intersects the depth direction by approximately 45 degrees. 2. The H-shape according to claim 1, wherein the lateral arm is formed of a pipe, and the laterally bent lower end of the handrail supporting column is detachably inserted into the pipe from the tip thereof to support the supporting column in an upright state. Scaffolding equipment for steel columns.