JPH0736993Y2 - Self-lifting scaffolding equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-elevating scaffolding device used as a scaffold for repair work such as painting of floating steel piles such as a pier made of steel pipe piles.

[0002]

2. Description of the Related Art Conventionally, when performing repair work such as painting steel piles on water as described above, a diver tightens a scaffolding device with a floater on the water contacting portion of the steel piles with a band or the like, and In order to repair the high places of steel piles, the scaffolding device is piled up on the scaffolding device at the bottom, and the assembling work and the dismantling work at the time of removal are difficult.

Therefore, the construction and disassembly of the scaffolding for repairing such steel piles requires complicated manual work and a large number of workers, and the cost thereof is high.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and when repairing a steel pile provided on the water surface, mounting and dismounting it around the steel pile. It is an object of the present invention to provide a self-elevating scaffolding device that is simple and that can easily raise and lower the scaffolding even for high-altitude work, and can reduce the cost of constructing the scaffolding.

[0005]

As a means for solving the above-mentioned problems, a self-elevating scaffolding device of the present invention is a semi-tightening type floater which can be clamped on the outer circumference of a steel pile and is removable. A half-divided work scaffold is placed on the upper part of the table so that it can be vertically moved up and down by an appropriate lifting device via a pair of portal main columns that connect the two vertically. The work scaffold can be towed to the steel pile position to repair the floater mounted on the upper part, and the steel pile can be clamped and tightened to repair the steel pile from the work scaffold on the floater. It can be easily moved up and down to repair high places.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of an embodiment of the self-elevating scaffolding device of the present invention, and FIG. Plan view,
3 is a plan view of the floater of FIG. 1, FIG. 4 is a schematic side view of the AA direction of FIG. 1, FIG. 5 is a schematic side view of the BB direction of FIG. 1, and FIG. 6 is a work scaffold of FIG. It is a schematic side view at the time of descent.

First, in this self-elevating scaffolding device, a half-clamping type floater 1 as shown in FIG. 3 is provided at the bottom, and a half-type working scaffolding 2 shown in FIG. It consists of 2 and each has both ends connected with a tightening bolt 2.
It is divided into pieces and can be clamped on the outer circumference of the steel pile 4 which is to be repaired and which is erected on the water as shown by the alternate long and short dash line in FIG.

Next, the floater 1 and the work scaffold 2 are connected by a pair of left and right main gate columns 5, that is, a total of four lifting rods 5A. The upper ends of the main gate columns 5 are connected to each other. A hinge 6 is rotatably attached to the lower surface of the work scaffold 2, and the lower end of the work scaffold 2 penetrates the floater 1 and two lifting rods 5A each are connected by a connecting member 5B. Since the work scaffold 2 and the floater 1 are vertically connected by 5, the two are stably supported substantially parallel to each other.

Further, rod guides 7 are provided at the respective penetrating portions of the floater 1 through which the elevating rods 5A penetrate, and the work scaffold 2 is provided on the floater 1 as shown in FIG.
A plurality of stoppers 8 for mounting the slabs are provided upright, and a plurality of guide rollers 9 and one left and right hand winches 10 are provided in a portion of the work scaffold 2 that holds the steel piles 4 therebetween. There is.

Further, in order to allow the work scaffold 2 to move up and down on the floater 1, two wires 11 having one ends locked to the wire stoppers 12 on the floater 1 are attached to the lower part of each gate type main pillar 5. By changing the direction at the sheave block 13 of the connecting member 5B and winding up the hand winch 10 on the work scaffold 2 again via the guide sheave 14 on the floater 1,
This work scaffold 2 can be raised and lowered to an arbitrary height on the floater 1 and can be locked by a stopper of the hand winch 10 at any position, but in order to stabilize the work scaffold 2, The working scaffold 2 is provided with a fixing band 15 for the steel pile 4.

Next, a description will be given of how to use the self-elevating scaffolding device having the above-described structure. In the retracted state of FIG. 6, the buoyancy of the float 1 tow the device to the work site to repair the device. The floater 1 and the work scaffold 2 are set so that the steel pile 4 is sandwiched between the steel pile 4 and the steel pile 4, and the tightening bolt 3 is tightened to fix the steel pile 4 to the steel pile 4.

Here, the guide roller 9 provided on the work scaffold 2 is adjusted and tightened according to the outer diameter of the steel pile 4, and the left and right hand winches 10 are similarly rotated to move the work scaffold 2 to the positions shown in FIGS. 5 is moved up and down to the required height position, and the bolts of the fixing band 15 are tightened at the required position to improve the stability of the work scaffold 2 and then the steel pile 4 is repaired. On the other hand, after the completion of the repair work, the operation reverse to the above is carried out to store the state of FIG. 6 again, and the vehicle is moved to another work place by towing.

Although the apparatus of the above-mentioned embodiment shows an example used for repairing the steel piles 4 which are vertically erected, even in the case of the steel piles which are inclined, The device of the present invention can be applied if the work scaffold 2 and the floater 1 are placed so as to be able to move up and down via the main gate-shaped pillar in an inclined state. Also,
When it is necessary to raise and lower the work scaffold 2 from the floater 1 to a higher position, the length of the gate-type main pillar 5 may be increased, but when the water depth is shallow and the long gate-type main pillar 5 cannot be adopted, This can be dealt with by adopting a multi-stage folding method such as folding the gate type main pillar 5 in two or three.

Further, as the lifting device for the working scaffold 2, the winding system of the wire 11 by the hand winch 10 is adopted in this embodiment, but the invention is not limited to this and any rack and pinion system can be used. Elevating means may be used.

[0015]

As described above, according to the self-elevating scaffolding device of the present invention, at the time of repairing a steel pile installed on the water, the repairing scaffold can be easily and quickly placed around the steel pile. It can be installed and work can be performed in a stable state, and even for work at heights, the work scaffold can be easily moved up and down by self-operation, improving the efficiency of steel pile repair work,
This has the effect of reducing the cost of building the scaffold.

Further, the scaffolding device of the present invention has the advantage that it can be easily moved to the required site by towing on the water by the floater and the transportation cost is low. further,
Since it is not necessary to weld brackets or the like to the pile to attach the scaffold, there is no damage to the pile due to welding.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an embodiment of a self-elevating scaffolding device of the present invention.

2 is a plan view of the work scaffold of FIG. 1. FIG.

FIG. 3 is a plan view of the floater of FIG.

FIG. 4 is a schematic side view in the AA direction of FIG.

5 is a schematic side view in the BB direction of FIG. 1. FIG.

6 is a schematic side view of the work scaffold of FIG. 4 when stored.

[Explanation of symbols]

 1 Floater 2 Working scaffold 4 Steel pile 5 Gate type main pillar 5A Lifting rod 6 Hinge 10 Hand winch 11 Wire

Claims (1)

[Scope of utility model registration request] 1. A half-divided work scaffold is provided on the upper part of a half-division type floater that can be held on the outer periphery of a steel pile, and a half-division work scaffold is vertically arranged via a pair of gate-type main columns connecting the two vertically. A self-elevating scaffolding device that can be lifted and lowered.