JPH085245Y2 - Steel pipe fixing member for suspension scaffolding for structures - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is used for fixing a steel pipe, which is a round bar or a square bar of a scaffold suspended by a chain, to a chain along the lower surface of a structure such as a bridge. The present invention relates to a steel pipe fixing member for a suspension scaffold for a structure.

[Prior Art] A method of providing a suspension scaffolding on the lower side of the bridge 10 will be described with reference to FIG.

Wrap the lower end of the chain 1 around the steel scaffolding pipe 2 with a length of about 5 m called "Oyago" at intervals of about 1 m to hook it up, and several workers will stand at the end of the bridge called "Koran". Each one of the chains 1 is hung at the same time to lower the scaffolding steel pipe 2 in the longitudinal direction. The upper part of the chain 1 in which the scaffolding steel pipe 2 in the longitudinal direction is hung in a horizontal state is a bridge.
It is fixed at 10. After that, the scaffolding steel pipes 2 in the width direction, called "rolling out", are placed on the scaffolding steel pipes 2 in the longitudinal direction to connect the intersections, and the safety net 11 is stretched in the plane including the scaffolding steel pipes 2 and the scaffolding steel pipes 9 and the scaffolding steel pipes 2 , 9 on scaffolding board 1
It carries two.

[Problems to be Solved by the Invention] It is a very difficult task to first lower the longitudinal scaffolding steel pipe 2 from the bridge to make it horizontal.

It is an object of the present invention to provide a steel pipe fixing member for a structure suspension scaffolding that solves the above problems.

[Means for Solving the Problems] Description will be made with reference to the drawings. In order to achieve the above purpose,
A steel pipe fixing member for a building suspension scaffold according to the present invention is a fixing member used for fixing a steel pipe for a scaffold suspended by chains along a structure, and is an enclosing piece of a clamp 4 that detachably holds a steel pipe 2. A pair of holes 4g, 4g are opened in 4a, and the holes 4g, 4g are turned from the outside of the clamp 4 toward the central part, and U
The chain-shaped connecting member 5 having a character shape is passed through, and the ends 5a, 5a of the connecting member 5 which are passed through the holes 4g, 4g are closed and connected by a linear piece 5b.

[Operation] Since the present invention is configured as described above, the link 1a forming the chain 1 is passed through the U-shaped chain connecting member 5 prior to passing the connecting member 5 through the holes 5a, 5a. By connecting them, the steel pipe 2 can be reliably held by the clamp 4, and the steel pipe 2 that supports the scaffolding can be very easily hung from the structure such as a bridge via the chain 1.
If the hook is connected to the tip of the chain 1 in advance, the steel pipe 9 is securely held by the clamp 4 and the hook is applied to the U-shaped chain connecting member 7 connected to the clamp 4. The steel pipe 9 supporting the scaffold can be more easily hung on the structure via the chain 1.

[Examples] Examples will be described with reference to the drawings. 1 is a chain suspended along the lower surface of a structure such as a bridge, 1a is an oval link constituting the chain 1, and 2 is a lower end of the chain 1. The scaffolding steel pipe 3 attached to the steel pipe 3 is a steel pipe fixing member according to the present invention, and is constructed as follows. That is, 4 is a clamp that detachably holds the steel pipe 9, and is a combination of two surrounding pieces 4a, 4b having a circular (Fig. 1) or square (Fig. 2) inner edge, and 4c is A hinge that rotatably connects one ends of the surrounding pieces 4a, 4b,
4d is a bolt pivotally attached to one of the other ends by a pin 4e, 4h is a notch formed at the other end of the surrounding piece 4b, and 4f is a notch formed in the notch 4h. It is a nut for screwing the bolt 4d.

4g and 4g are a pair of holes formed in the surrounding piece 4a, and 5 is the hole 4
g, 4g U passed from the outside of the clamp 4 toward the center
A linear piece 5b is provided between the end portions 5a, 5a of the connecting member 5 which is a V-shaped chain connecting member and is passed through the holes 4g, 4g so that the U-shaped chain connecting member 5 does not come off from the clamp 4. It is closed and connected. Holes 4g and 4g are steel pipes 2 held in the clamp 4.
Are arranged in the longitudinal direction (Figs. 2 and 3) or in the direction perpendicular to it (Fig. 1).

Next, the operation will be described. The steel pipe fixing member of the suspension scaffold for a structure according to the present invention is a U-shaped chain connecting member 5.
In addition, the tip hook is hooked on a chain of an arbitrary chain through the chain 1, the steel pipe 2 is securely held by the clamp 4, and the steel pipe 2 supporting the scaffold is hung on the structure very easily via the chain 1. You can Note that the steel pipe 2 can be reliably held by the clamp 4, and the steel pipe 2 that supports the scaffold can be more easily hung on the structure via the chain 1. At that time, by unifying the horizontal direction of the U-shaped connecting member 5 so as to be vertical or parallel to the steel pipe 2, one steel pipe 2 is suspended by a plurality of chains 1 and the chain 1 is connected.
There is no need to hang the upper end of the structure on a structure such as a bridge and to fix it, causing work to be confused and causing kinks in the chain 1. Even when the steel pipe is tilted and suspended from the chain 1, the U-shaped connecting member 5 forms the link 1a that constitutes the chain 1.
Respond smoothly to.

After the above work, the scaffolding steel pipe 2 in the longitudinal direction is
A scaffolding steel pipe 9 in the width direction called "roll-out" is placed to connect the intersections, a safety net 11 is stretched in the plane including the scaffolding steel pipe 2 and the scaffolding steel pipe 9, and the scaffolding plate 1 is placed on the scaffolding steel pipes 2,9.
Assemble the scaffolding by mounting 2.

[Effect of the Invention] Since the present invention is configured as described above,
The steel pipe 2 can be reliably held by the clamp 4, and the steel pipe 2 that supports the scaffold can be hung over the structure via the chain 1 very simply, safely, and reliably.

Further, when the steel pipe fixing member according to the present invention is used, the number of links from the scaffolding steel pipe 2 in the longitudinal direction is counted, and if the same link is fastened to the bridge, the scaffolding steel pipe 2 in the longitudinal direction is kept horizontal. Therefore, the work efficiency can be remarkably improved.

[Brief description of drawings]

1 and 2 are a front view and a third view showing an embodiment of the present invention.
The figure is a plan view of FIG. 2, and FIG. 4 is a suspension scaffold to which the present invention is applied. 1 …… Chain 1a …… Oval link 2 …… Longitudinal scaffolding steel pipe 3 …… Steel pipe fixing member 4 …… Clamp 4a, 4b …… Enclosing piece 4c …… Hinge 4d …… Bolt 4e …… Pin 4f ...... Nut 4h ...... Notch 4g ...... Hole 5 ...... U-shaped coupling member 5a ...... End 5b ...... Straight piece 9 ...... Scaffold steel pipe in width direction 10 ...... Bridge 11 ...... Safety net 12 ... ... scaffolding board

Claims (1)

[Scope of utility model registration request] 1. A fixing member used for fixing a steel pipe of a scaffold suspended by a chain along a structure, wherein the steel pipe (2).
Enclosing piece (4) of clamp (4) that holds the
A pair of holes (4g, 4g) is opened in a), and a U-shaped chain connecting member (5) is passed through the holes (4g, 4g) from the outside of the clamp (4) toward the central part, and the hole (4g, 4g) is inserted. 4g, 4g) is a steel pipe fixing member for a suspended scaffold for a structure, in which ends (5a, 5a) of a connecting member (5) that are passed through are closed and connected by a linear piece (5b).