JPH0449369A - Scaffolding for suspending frame - Google Patents

Abstract

PURPOSE:To improve workability by mounting a scaffolding suspended from a suspending frame, on the upper surface of an object to be required to be hoisted, and by connecting a suspending metal fittings on the side of the object, to a fitting wire suspended from the suspending frame. CONSTITUTION:A scaffolding consisting of the network bottom plate 8 of a shape and dimension to be fitted on the upper surface of a caisson 1 or the like, and a handrail 9 set on the outer periphery of the bottom plate is formed. After that, at a position to be fitted on a suspending metal fittings 7 to be projected to the upper section of the caisson 1, a hole 10 for projecting the metal fittings to is set on the bottom plate 8. After that, a suspending frame 4 and the scaffolding 8 are connected to each other with a scaffolding suspending wire 11. Then, a crane is used, and the suspending frame 4 is suspended, and the scaffolding 8 is moved down to be mounted on the upper surface of the caisson 1. Besides, the fitting wire 5 of the suspending frame 4 is connected to the metal fittings 7 projected from the hole 10, and after that, the caisson 1 is hoisted to be moved. As a result, on a work floor, work can be executed freely with safety, and the scaffolding is freely changed and can be diverted to other purpose.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a scaffolding for hanging spigots, and particularly to a scaffolding for hanging spigots used for attaching a hanging frame to a caisson when a caisson on land is suspended by a crane ship at sea. It is something.

(Prior art) Conventionally, caisson 1 was constructed on land as shown in Fig. 4.
When suspended by a crane ship on the sea, a hanging frame 4 having a shape and size corresponding to the caisson 1 is suspended from a hanging hook 2 of the crane by a wire 3, and a hanging frame 4 is attached extending downward from the lower surface of the hanging frame 4. A shackle 6 provided at the lower end of the wire 5 is fixed to a hanging fitting 7 provided protruding from the upper surface of the caisson 1 by a worker riding on the caisson 1.

(Problem to be Solved by the Invention) However, with the above conventional means, when a worker rides on the caisson 1 and attaches the shackle, the width of the upper side wall 1a and bulkhead 1b of the caisson 1 is 20 mm. ~40cm
Because of the narrow space and dangerous work, a net is laid over the upper opening of the open caisson 1, and this laying work is not only troublesome (workers' feet may get caught in the embedded metal fittings that hold the net, etc.). When installed due to waves and winds, the wire 5 sways from side to side and there is a danger that the worker may fall outside the caisson.

The present invention seeks to eliminate the above-mentioned drawbacks.

(Means for Solving the Problems) The suspension frame surrounding scaffold of the present invention comprises a hole provided in the bottom plate for inserting and protruding a hanging fitting provided on an object to be hung, and a wire attachment part provided in the bottom plate. It is characterized by

(Function) The scaffolding around the hanging frame of the present invention is placed on the upper part of the caisson before the hanging frame is lowered onto the caisson, so that workers can work safely on it, and the scaffolding around the hanging frame on the upper part of the caisson The shank protrudes upward from a hole formed in the bottom plate, and the shank, which is suspended from the hanging frame via a wire, can be easily attached to the hanging fitting by an operator.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In the present invention, as shown in FIGS. 1 to 3, a net-like bottom plate (extended metal) 8 reinforced with a steel material having a shape and size that matches the upper surface of the caisson l, and an outer peripheral portion on this bottom plate 8 are provided. A handrail 9 made of a pipe or the like is hung vertically for the safety of workers, and a hole 1 ( 1 and a mounting portion 12 for attaching the scaffold hanging wire 11 from the hanging frame 4, which is also provided on the bottom plate 8, constitute a hanging frame peripheral scaffold.

It is preferable that the improved slider 9 is located on the outer periphery of the bottom plate 8 which extends outward from the side wall of the caisson 1 in a terrace shape. In addition, in the present invention, a plurality of legs (not shown) extending downward from the bottom plate 8 and entering holes in the upper surface of the caisson 1 are provided as necessary to serve as guides when the scaffold is placed on the caisson 1. .

Since the suspension frame surrounding scaffold of the present invention has the above-mentioned configuration, the scaffold is previously suspended from the suspension frame 4 on land via the scaffold suspension wire 11, and then lowered onto the caisson 1 by a crane. Then, the hanging fitting 7 on the caisson 1 will protrude upward from the hole 10 in the bottom plate 8. Therefore, if the worker is moved onto the bottom plate 8 of this scaffold using a crane or the like,
The worker freely walks on the bottom plate 8 with the help of the handrail 9 and attaches the shackle 6, which is suspended from the hanging frame 4 via the wire 5, to the hanging fitting 7 of the caisson 1.
is installed, and Caisson 1 can be lifted and moved.

(Effects of the invention) A. Even if the size and shape of the caisson change, since the scaffolding members are made of steel, it is possible to easily change the shape of the scaffolding (position of holes for protruding hanging fittings, etc.). It can be used for caissons of various shapes and sizes.

B. Not only when lowering the caisson, but also during water injection when installing the caisson on site, workers can walk freely on the top of the caisson, making it extremely easy to work, and preventing the caisson from falling inside or outside. Unless you overcome the hurdles, it will never happen.

Since the C9 scaffold itself is suspended from the suspension frame of the caisson, once the suspension frame and scaffolding are set, there is no need for workers to climb up and down from the top of the caisson to install or remove the scaffolding.

Fig. 1 is a plan view of the scaffold of the present invention, Fig. 2 is a side view, and Fig. 3 is a plan view of the scaffold of the present invention.
The figure is an explanatory diagram of its usage, and FIG. 4 is an explanatory diagram of a conventional caisson hanging fitting.

Claims (1)

[Claims] It is characterized by comprising a bottom plate, a handrail provided on the bottom plate, a hole provided in the bottom plate for inserting and protruding a hanging fitting provided on an object to be hung, and a wire attachment part provided in the bottom plate. Scaffolding for hanging frames.