JPH1088788A - Scaffold base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffold base which can be easily assembled and disassemble, and which can be reused without damaging assembled members. SOLUTION: A scaffold base is composed of an upper stationary bracket 2 and a lower stationary bracket 3 which are removably fixed to a flange 1a of a H-steel bar 1 fixed being set on a slope surface, and a horizontal arm 4 having one end pivotally journalled to the upper stationary bracket 2. A support arm 7 is pivotally journalled at its one end to the other end of the horizontal arm 4, and at it's the other end to the lower stationary bracket 3 so that the horizontal arm 7 is supported horizontally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold base used for construction of a protective wall for a slope such as a cut, and for supporting a gantry for mounting a civil engineering machine such as a drilling machine.

[0002]

2. Description of the Related Art Hitherto, in the construction of a protective wall on a slope, an anchor has been driven into the concrete block for the protective wall on the slope, and when the anchor is driven, a hole is drilled in the concrete block. Is performed. In performing the drilling, a gantry on which the drilling machine is mounted is mounted on a slope with a scaffold or the like.

[0003] For example, scaffolds that have been widely practiced in the past are to assemble a single pipe, and after flattening a part of a slope, passing a steel plate or a scaffold plate, placing a jack base or a fixed base, and mounting the scaffold. It is to assemble a single tube on top.

[0004] In addition, conventionally, an H-section steel is set up on a slope, and an H-section steel for a scaffold base formed in advance according to the gradient of the H-section steel is fixed by welding. In addition, there has been proposed a method in which a gantry is assembled and fixed using a fastener called a G-shaped bracket or a P-shaped bracket. In this method, the number of parts is small because the strength of the parts is high,
The use of the fastener makes it possible to assemble without welding work, except for the base H-section steel, so that assembling and disassembling takes less time and less damage to members compared to the method of assembling a scaffold with a single pipe.

[0005]

However, in the construction of a scaffold base by assembling the single tube,
The assembly work is complicated, lacks stability, and the gantry on which the drilling machine is mounted has a problem that the number of components is large, it takes time to assemble and disassemble, and the danger increases due to manual work at high places. there were. In addition, there is a problem that the member itself is weak and the damage is large.

[0006] Further, in an apparatus in which an H-section steel is erected on a slope and a gantry is assembled thereon, the H-section steel for a scaffold base needs to be formed in accordance with the slope of the slope, and the forming is performed. However, there is a problem that it takes a long time to perform the operation, and that it is not possible to prepare in advance, so that a waiting time is required. Further, if the slope of the slope changes, it cannot be used. In addition, since welding and welding are required for forming and mounting, and removal is performed by fusing, there is a problem that the used members cannot be reused, and the H-section steel leaning against the slope is also damaged.

The present invention has been made to solve the above-mentioned problems, and can freely hold a horizontal arm for a scaffold base in accordance with the slope of a slope, and can easily hold the horizontal arm for a scaffold base simply by fixing with a fastener. An object of the present invention is to provide a scaffold base on which an earth-moving machine such as a drilling machine can be mounted, and that the assembling and disassembling can be performed quickly and easily, and the assembled member can be reused without being damaged. I do.

[0008]

In order to achieve the above object, a scaffold base according to the first aspect of the present invention is detachably attached to an H-shaped steel flange fixed to a slope by using a fastener. An upper fixed bracket and a lower fixed bracket to be fixed, and a horizontal arm having one end pivotally supported by the upper fixed bracket; one end of a support arm pivotally supported at the other end of the horizontal arm; Is pivotally supported by the lower fixing bracket so that the horizontal arm is horizontally supported.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 5 shows the scaffold base A of the present invention.
Shows a gantry for mounting a drilling machine using
Reference numeral 1 denotes an H-shaped steel fixed on a slope such as a cut, and the flange of the H-shaped steel 1 is provided at two vertical positions.
The scaffold base A is fixed using a fastener (not shown).

On these scaffold bases A, an H-shaped steel 22 is passed as required, and an H-shaped steel 23 is placed thereon.
Is established, and an H-section steel 24 is passed over the H-section steel 23, and a scaffold portion 2 made of an H-section steel, a scaffold plate or the like is placed thereon.
5 is formed, and a support frame 26 is installed and fixed on the scaffold 25.

The mounting plate 2 is mounted on the support frame 26 so that it can be moved up and down (direction) by hydraulic cylinders 27 and 28.
9, and a rotary drilling machine 30 is mounted on the mounting plate 29.

FIG. 1 is a side view showing the scaffold base A. In FIG. 1, reference numeral 1 denotes the H-shaped steel fixed so as to lean against a slope such as a cut. An upper fixing bracket 2 and a lower fixing bracket 3 are detachably attached to two vertical positions of the flange 1a of the steel 1 by fasteners (not shown).

Here, as the fastener, for example, Japanese Unexamined Patent Publication No.
U-shaped fittings and G-shaped fittings as shown in JP-A-54097 are used.
It functions so as to sandwich the flange of the section steel 1 and the mounting pieces 2a, 3a of the upper fixed bracket 2 and the lower bracket 3 to securely and removably fasten them.

Reference numeral 4 denotes a horizontal arm whose one end is rotatably supported by a pair of support pieces 2b provided on the upper fixed bracket 2 by a pivot 5. The horizontal arm 4 has an arbitrary shape.
Consists of size cast iron. Reference numeral 6 denotes a stopper provided at the upper end of the other end of the horizontal arm 4 for preventing the steel material from shifting.

Further, reference numeral 7 denotes a lower fixing bracket 3 at one end.
Is a support arm rotatably supported by a pair of support pieces 3b provided by a pivot 8 so as to have an arbitrary size and shape. The support arm 7 is used to horizontally support the horizontal arm 4.

The other end of the support arm 7 is rotatably supported by a pivot 9 with respect to the other end of the horizontal arm 4. As shown in FIGS. The horizontal arm 4 is always fixed to the supporting arm 7 by selecting the fixing position of the upper fixing bracket 2 and the lower fixing bracket 3 on the H-shaped steel 1 according to the inclination of the horizontal arm 4 and the length of the supporting arm 7. Can be supported horizontally.

FIG. 4 is a detailed plan view showing a pivotal connection structure between the upper fixing bracket 2 and the horizontal arm 4 shown in FIGS. 1 to 3, wherein a bolt 5a is used as a pivot 5, and the upper fixing bracket 2 Washer 1 on pivot with horizontal arm 4
A nut 5b is screwed into a bolt 5a that is inserted through the nut 1.

Reference numeral 12 denotes a pine needle pin insertion hole of a nut stopper drilled in the bolt 5a. The same structure as described above is adopted for the pivotal support structure between the lower fixing bracket 3 and the support arm 7 and the pivotal support structure for the support arm 7 and the horizontal arm 4.

Accordingly, in the scaffold base A having such a configuration, the mounting positions of the upper fixing bracket 2 and the lower fixing bracket 3 on the H-shaped steel 1 are arbitrarily selected by using fasteners, so that the slope of the slope can be reduced. The horizontal arm 4 can always be kept horizontal according to the gradient, and this state is
Can be maintained stably.

In this case, the scaffold base A can be easily assembled by tightening and releasing the fastener.
This can be performed quickly and repeatedly, and the efficiency of the assembling and disassembling operations can be improved.

In addition, since the work of welding and fusing at a high place as in the prior art is eliminated, the work becomes safe, the arrangement of a welder is not required, and the working cost can be greatly reduced. Each member and H-beam 1
There is an effect that these can be used repeatedly without damage.

[0022]

As described above, according to the first aspect of the present invention, the upper fixing bracket and the lower fixing bracket which are detachably fixed to the H-shaped steel flange fixed to the slope by using the fastener. And a horizontal arm having one end pivotally supported by the upper fixing bracket. One end of the support arm is pivotally supported at the other end of the horizontal arm, and the other end of the support arm is horizontally moved by the horizontal arm. Since it is configured to be supported by the lower fixing bracket so as to be supported, the scaffold base can be freely held horizontally according to the slope of the slope,
In addition, the earth-moving machine such as a drilling machine can be easily mounted simply by fixing with a fastener, and the assembling and disassembling can be performed quickly and easily, and the assembled member can be reused without being damaged. Is obtained.

[Brief description of the drawings]

FIG. 1 is a side view showing a scaffold base according to an embodiment of the present invention.

FIG. 2 is a side view showing a scaffold base according to another embodiment of the present invention.

FIG. 3 is a side view showing a scaffold base according to another embodiment of the present invention.

FIG. 4 is a plan view showing a pivotal support structure between an upper fixing bracket and a horizontal bracket in FIGS.

FIG. 5 is a side view showing a gantry for mounting a drilling machine using the scaffold base of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 H-shaped steel 2 Upper fixed bracket 3 Lower fixed bracket 4 Horizontal arm 7 Support arm

Claims (1)

[Claims] 1. An upper fixing bracket and a lower fixing bracket which are detachably fixed to a H-shaped steel flange fixed to a slope by using a fastener, and one end of which is pivotally supported by the upper fixing bracket. A scaffold comprising: a horizontal arm; and a support arm having one end pivotally supported by the other end of the horizontal arm and the other end pivotally supported by the lower fixing bracket to horizontally support the horizontal arm. base.