JPS6018508Y2 - Hanging scaffolding device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a suspended scaffolding device, and particularly to a suspended scaffolding device used for finishing or repairing the underside of a highway girder.

Elevated expressways are generally shaped by erecting pedestals along the center of the general road and installing bridge girders along the upper ends of the pedestals, so the underside of the expressway girder is finished or When carrying out repairs, etc., the above-ground general road is closed to traffic, and suspended scaffolding equipment is assembled and suspended from the underside of the expressway girder, but as mentioned above, this assembly and hanging work requires the closure of the general road. All work was done late at night because it had to be done.

Therefore, labor costs are high due to late-night work, and various problems arise, such as ensuring safety during work.

The purpose of this invention is to improve the above-mentioned drawbacks and to provide a suspended scaffolding device that can be used even during the daytime because it can be implemented by simply stopping a portion of the traffic on a general road.

To explain this invention based on the embodiment shown in the drawings below, a beam 1 consisting of a plurality of long pipes or steel bars is
A rectangular board 2 is formed by arranging the beams in the horizontal direction and connecting and fixing the ends of adjacent beams to each other via connectors to form a lattice-like rectangular board 2. It has approximately the same size as a section divided into two on both sides in the longitudinal direction, and divided into two and quartered in the width direction of the expressway at the center between the pillars.

Then, a long reinforcing frame 5, which runs along the length of the board 2 and has wheels 4 at the lower end and is framed by pipes or steel bars, is provided vertically on the bottom surface of the board 2 and is connected to the board 2. Floor board 6 that can be moved by connecting and fixing it via tools
Furthermore, a self-elevating type winder 7 located above the base plate 2 is provided on the reinforcing frame 5 so as to correspond to the beam of the expressway girder.

A plurality of scaffolding boards 10 are provided on the entire upper surface of the floor board 6 configured in this way, one end of each scaffolding board 10 is below the adjacent one-strength scaffolding board 10, and the other end is below the other scaffolding board 10. A flame retardant sheet 11 is laid so as to be positioned above the boards 10, and furthermore, a flameproof sheet 11 is laid on the upper surface of the laid scaffolding boards 10 so as to cover the entire surface of the substrate 2.

Also, along one side of the floor board 6 is an L-shaped seat mounting beam 1.
2 is erected by fixing its horizontal portion to the substrate 2, and the flameproof sheet 11 is stretched over the sheet attachment beam 12.

On the other hand, a pulley 14 is fixed to the lower part of the rope 9 of the cable 13 around which the wire 9 of the expressway girder is wound, and each pulley 1
Numerals 4 correspond to the wine toughs located above the floor board 6 when the floor board 6 is located below the expressway girder.

Therefore, after assembling the floor plate 6 at a place other than a traffic intersection on a general road, it is moved on the ground using wheels 4 and installed at one of the four divisions between the pillars of the expressway 3. The seat mounting beam 12 on one side faces the side of the expressway 3.

Then, the suspension cable 8 whose one end is tied to the floor board 6 is wound around the pulley 14, and then the other end is wound around each winder 7 and led out to the outside.

Thereafter, by starting each winder 7, the floor plate 6 is raised, brought close to the underside of the expressway 3, and suspended so as to face one of the four divisions between the pillars of the expressway.

Using the same method, the floor plates 6 are suspended from other parts of the four-way division between the pillars of the expressway, and then the beams 1 and reinforcing frames 5 of the base plate 2 of each floor plate 6 are connected with each other using connectors. This covers the entire lower surface between the pillars of the expressway.

(FIG. 4) After hoisting the floor board 6, as shown in FIG. 7, the horizontal beam 9 and the floor board are connected at appropriate positions with cables 17 as required.

In either case, a hook 19 is attached to the road shoulder 18 at the end of the running surface of the expressway 3, and both ends of the cable 20 are tied to the bottom of the seat attachment beam 12 via the hook 19.
21 is a ladder used by workers to go back and forth between the ground and the floorboard, and 22 is a ladder 9 and a pedestal on an expressway. This is a connector that connects between 23 and 23.

This idea was developed by dividing the lower surface between the pedestals of the expressway on which work is to be carried out into multiple sections vertically and horizontally, as described above, and combining a floor plate of a size corresponding to one of the divided planes. Since it covers the entire lower surface between pillars, it is possible to assemble it in areas with no traffic, and therefore it is possible to install suspended scaffolding equipment without completely closing off the general road below the expressway as in the past. The suspension work can be done during the day, the floorboard can be reinstalled in other installation sections, and the suspension and installation operation of the floorboard can be easily done. It is convenient for repair work on the underside of roads, and since it covers the entire underside of the expressway, it has the advantage of ensuring safe passage on the ground without the risk of falling objects falling to the ground during work.

[Brief explanation of the drawing]

The drawings show an example. Figure 1 is a plan view of the board, Figure 2 is a vertical cross-sectional view showing the assembled state, Figure 3 is a cross-sectional view, and Figure 4 is a board suspended under an expressway. FIGS. 5 and 6 are schematic diagrams showing the main parts when suspended, and FIG. 7 is a diagram showing another embodiment. In the drawing, 1 is a beam, 2 is a board, 4 is a wheel, 5 is a reinforcing frame, 6 is a floor board, 7 is a winder, 8° 13.17, 2
0 is a cable, 9 is a highway rope, 11 is a flame retardant sheet, 12
14 is a seat attachment beam, 14 is a pulley, 15 is a connecting rod, 18 is a road shoulder, 19 is a hook, and 21 is a ladder.

Claims (1)

[Scope of utility model registration request] A lattice-shaped board that connects multiple beams vertically and horizontally and has a size equivalent to one of two horizontally divided lower surfaces between pillars of the expressway to be installed and multiple vertically divided sections. At the same time, scaffolding was laid on the top surface, and reinforcing frames and wheels were attached to the bottom surface to create a movable floor platform.
A seat mounting beam is erected along one side of the floor in the vertical direction, and a plurality of self-elevating winders are installed at required positions corresponding to the highway rails. is raised from the ground by connecting a hanging cable attached to a beam of the expressway to the winder and driving the winder, so that the attachment beam faces a longitudinal side surface of the expressway, and The floor plates are suspended and supported from the beams of the expressway by ropes so that they face the underside of the expressway, and in this way, a plurality of floor plates are arranged vertically and horizontally, and the floor plates are placed between the pillars of the expressway. A hanging scaffolding device characterized by being constructed so as to cover the lower surface.