JPH0762855A - Expandable scaffolding board - Google Patents

Abstract

PURPOSE:To facilitate the assembly and movement of a scaffold while providing a scaffolding board, on which working is facilitated and which is handled simply, by assembling the scaffold without hanging a bar when the interior finish work of the rear side, etc., of a stair is conducted. CONSTITUTION:External scaffolding boards 2 and internal scaffolding boards 3 are constituted in an approximately rectangular cross section respectively while the internal scaffolding boards 3 are inserted into the external scaffolding boards 2 in a slidable manner in expansion scaffolding boards. The external scaffolding boards 2 are stretched over the horizontal members of a prefabricated scaffolding by gripping fittings 7 set up on both side faces on both ends of the external scaffolding boards 2 and the internal scaffolding boards 3. Handrail bearing materials 10 are installed to the four corners of the external scaffolding boards 2 and side faces on both sides of the front ends of the internal scaffolding boards 3, and non-slip ribs 5a functioning as reinforcing materials in combination are mounted in the vertical direction to the longitudinal direction of the handrail bearing materials 10. A support 14 is set up to a connecting member 9 fitted onto the undersides of end sections on the front end sides of the external scaffolding boards 2 in approximately vertical direction to the undersides of the scaffolding boards.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold used for interior construction work at a high place such as the back of stairs at a construction site.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, when performing interior work at a high place such as a staircase on the construction site of a building,
On the ceilings of the upper stairs landing a and the lower stairs landing b, the suspension rods c are fixed by the locking fixtures i and hung respectively.
Attach the single pipe h between the handrail d of the stairs and the hanging rod c,
Make sure the hanging bar c does not shake. The scaffolding board f is hung over both of the hanging rods thus constructed, and a handrail g for preventing a fall is provided to prevent the rails from being displaced by tie-bonding or the like. Then, the scaffolding frame e installed at each stairs landing gets on the scaffolding board f, and works such as painting on the back side of the stairs are performed. For the scaffolding plate f, a scaffolding panel made of aluminum or the like is used, and one or more scaffolding panels are lined up and suspended on the suspension rod c.

[0003]

However, in the conventional scaffolding, since the suspension rods for suspending the scaffolding plates are fixed by the locking fixtures and suspended from the ceiling, depending on the shape of the ceiling plate of the stair landing, the suspension rods are suspended. It is necessary to change the locking metal fittings of and also to suspend the hanging rod and the single pipe, scaffolding board and handrails by means such as tying up the numbered wire to prevent falling, so it takes time to assemble and requires skill. It was difficult to assemble unless someone was there. And once installed, it takes a lot of time to change the installation location. Also,
When assembling the scaffold, if the landing of the stairs is not wide enough, it is not easy to move with a long scaffold panel, and it is inconvenient to store it. Therefore, the present invention is configured such that the inner scaffolding plate is housed in the outer scaffolding plate so as to be slidable, and the scaffolding plate provided with the handrail support material and the anti-slip ribs is directly hung on the frame scaffolding to make the hanging rod. An object of the present invention is to provide a scaffolding board that allows easy assembly of scaffolding without suspending from the ceiling and is easy to work and easy to handle.

[0004]

The elastic scaffolding plate of the present invention comprises:
In order to solve the above-mentioned problems, the inner scaffolding plate is slidably inserted into the outer scaffolding plate having a substantially rectangular cross section in a double tubular shape,
Attach the grips to both sides of the double scaffolding inner and outer scaffolding boards, attach handrail support members to the four corners of the outer scaffolding board, and attach handrail supporters to both ends of the inner scaffolding board. A non-slip rib was provided on the upper surface of the scaffold plate in a direction perpendicular to the longitudinal direction of the scaffold plate. Further, a connecting member for connecting the support in a direction substantially perpendicular to the lower surface of the scaffold plate was attached to the lower surface of the tip end side end of the outer scaffold plate.

[0005]

In the telescopic scaffolding plate of the present invention, the outer scaffolding plate and the inner scaffolding plate are each formed into a substantially rectangular cross section, and the inner scaffolding plate is slidably inserted into the outer scaffolding plate to form a double tubular shape. The length of the plate can be adjusted so that it can be hung on the horizontal material of the frame scaffold with the grips provided on both sides of both ends of the outer scaffold plate, which is a double cylinder. In addition, handrail support materials are provided on the four corners of the outer scaffold plate and side surfaces on both sides of the tip of the inner scaffold plate to facilitate attachment of the handrail, and the upper surface of the outer scaffold plate also serves as a reinforcing material in a direction perpendicular to the longitudinal direction of the scaffold plate. Anti-slip ribs are provided to make it easier to work in places where the scaffolding plate is inclined. Furthermore, by attaching the support in a direction substantially perpendicular to the lower surface of the scaffolding plate to a connecting member for connecting the support provided on the lower surface of the tip end side end of the outer scaffolding plate, to prevent the scaffolding plate from shaking. It is possible to strengthen and strengthen the strength.

[0006]

EXAMPLE An expandable scaffolding plate according to the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing an embodiment of an elastic scaffolding plate according to the present invention. A frame scaffold 15 is installed on each of the stair landings Wa and Wb, and a stretchable scaffold board is laid between the two frame scaffolds 15. In the scaffolding plate of the present invention, an inner scaffolding plate 3 is slidably provided in a double cylindrical shape inside an outer scaffolding plate 2, one frame scaffolding 15 is hung on the base end of the outer scaffolding plate 2, and the other framework is The inner scaffolding plate 3 is pulled out from the scaffolding 15 and adjusted to an appropriate length before being hung. That is, at the symmetrical positions of the inner scaffold plate 3 and both ends of one end of the outer scaffold plate 2,
Clamps 7 such as clamps attached by welding, etc.
Is hung on the horizontal member of the frame scaffold 15 and fixed so as not to come off. The tubular handrail support member 1 is provided on the four corners of the outer scaffolding plate 2 and on the side surfaces of the inner scaffolding plate 3 on both sides of the grip 7 side.
0 is provided, and the handrail 13 assembled with a pipe is inserted into the handrail support member 10 to be attached in order to prevent falling.

Further, in order to prevent the elastic scaffold plate 1 from shaking and reinforce its strength, connecting members 9 are attached to both ends of the lower surface of the outer scaffold plate 2 on the pull-out side of the inner scaffold plate 3, and the connecting member 9 is a support. 14 can be connected so as to be substantially perpendicular to the lower surface of the outer scaffolding plate 2. And
The lower end of the support having the upper end connected to the connecting member is abutted against the inside of the corner of the stairs S so that the support 14 does not come off and the elastic scaffolding plate 1 can be supported.

Here, details of the telescopic scaffolding plate 1 are shown in FIG.
~ It demonstrates in FIG. The outer scaffolding plate 2 has two U-shaped cross-section core members 4a arranged in parallel with their openings facing each other, on the upper surface side of the two U-shaped cross-section core members 4a, in the direction perpendicular to the longitudinal direction thereof. Anti-slip ribs 5a that also serve as a reinforcing material are fixed at fixed intervals by welding or the like. Then, a floor plate 8a having an anti-slip uneven pattern is fixed between the anti-slip ribs 5a by welding or the like so that a person or an object can ride on it. Further, the plate-shaped reinforcing members 6a are provided on the lower surfaces of the two U-shaped cross-section core members 4a at positions symmetrical to the above-mentioned anti-slip ribs 5a, so that the overall cross-sectional shape of the outer scaffolding plate 2 is reduced. It has a substantially rectangular shape.

The inner scaffold plate 3 is slidably accommodated by being inserted into the outer scaffold plate 2 having a substantially rectangular cross section.
Two U-shaped cross-section core members 4b, which are slightly smaller than the U-shaped cross-section core members 4a, are arranged in parallel, and two U-shaped cross-section core members 4 are provided.
The reinforcing material 5b is fixed to the upper side between b by welding or the like. The reinforcing members 5b are provided at regular intervals in the longitudinal direction of the two U-shaped cross-section core members 4b, and the plate-like reinforcing members 6b are provided at regular intervals below the inner scaffold corresponding to each reinforcing member 5b. It is fixed. Then, a floor plate 8b having an uneven pattern for slip prevention is fixed to the upper surface of the portion where the inner scaffolding plate 3 is pulled out and exposed, so that a person or an object can ride on it.

By the way, by pulling out the inner scaffolding plate 3 housed in the outer scaffolding plate 2, the scaffolding plate can be expanded and contracted, but it is possible to prevent the strength from being lowered due to excessive pulling out and to prevent the inner scaffolding plate 3 from coming off. For this reason, stoppers 11 such as gravity locks are provided at both lower ends of the inner scaffolding plate 3 on the accommodation side of the U-shaped cross-section core member 4b. Further, cutouts 12 are provided at corresponding locations on the lower surface of the U-shaped core material 4a having both cross-sections of the outer scaffolding plate 2 so that the stopper 11 is caught when about 40% of the inner scaffolding plate 3 is pulled out from the outer scaffolding plate 2. Has been.

When the back side of the stairs is painted using the above-mentioned elastic scaffolding plate 1, as shown in FIG. 1, the stair landings Wa, W
Since the telescopic scaffolding board 1 is slanted over the framework scaffolding 15 installed in b, the telescopic scaffolding board 1 is used in a tilted state. In this case, since the non-slip ribs 5a are provided on the upper surface side of the outer scaffolding plate 2, an operator can put his / her foot on the ribs 5a and the uneven surface pattern of the anti-slip material is arranged on the upper surface side of the telescopic scaffolding plate 1. Since the floor plates 8a and 8b are provided to prevent the object placed on the scaffolding plate and the feet of the worker from slipping, it is easy to work even if the scaffolding plate is inclined. Further, it is very easy to hang the telescopic scaffolding board 1 on the frame scaffolding 15, insert the handrail 13 and attach the support to the lower surface of the scaffolding board, so that the scaffolding can be easily assembled and removed.

[0012]

By using the telescopic scaffolding board of the present invention, it is not necessary to suspend the hanging rod from the ceiling, and the scaffolding is completed by hanging it over the frame scaffolding provided on the landing of the stairs and attaching the handrail and the support. Therefore, it is easy to install and hassle-free to move, and can be installed anywhere as long as the length of the scaffolding board allows. And since the inner scaffolding board can be stored inside the outer scaffolding board, it can be compacted when not in use, which is very convenient for moving and storing the scaffolding board. Since the outer scaffolding plate has anti-slip ribs on its upper surface and an operator can put his / her foot on it to prevent slipping, it is effective when the scaffolding plate is used in a tilted state. Moreover, the anti-slip ribs also have the effect of reinforcing the scaffolding plate. Further, when the support is attached to the connecting member on the lower surface of the outer scaffolding plate 2, the shaking of the scaffolding plate can be suppressed, and even if a large load is applied on the scaffolding plate, the scaffolding plate can be prevented from bending, and the support of the stairs can be provided. It is safe because the support does not come off as it is fixed against the inside of the corner.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view of a telescopic scaffolding plate of the present invention.

FIG. 3 is a front view of a telescopic scaffolding plate of the present invention.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a cross-sectional view in the vicinity of a cutout on the lower side of the outer scaffold plate.

FIG. 6 is a front view showing a conventional example.

[Explanation of symbols]

 1 Telescopic scaffolding board 2 Outer scaffolding board 3 Inner scaffolding board 5a Anti-slip rib 7 Grip metal fitting 9 Connecting member 10 Handrail support material 14 Support

Claims (2)

[Claims] 1. An inner scaffolding plate is slidably inserted in a double cylindrical shape into an outer scaffolding plate having a substantially rectangular cross section, and gripping metal fittings are attached to both ends of the double cylindrical inner and outer scaffolding plate, respectively. The handrail support materials are attached to the four corners of the outer scaffolding board, the handrail support materials are attached to both ends of the inner scaffolding board, and anti-slip ribs are provided on the upper surface of the outer scaffolding board in the vertical direction in the longitudinal direction of the scaffolding board. An elastic scaffolding board. 2. The connecting member for connecting the support in a direction substantially perpendicular to the lower surface of the scaffolding plate is attached to the lower surface of the tip side end portion of the outer scaffolding plate. Telescopic scaffolding board.