JPS584149B2 - scaffolding board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scaffold board in an assembled scaffold used at a house or other construction site.

Conventionally, scaffolding boards used at construction sites, etc. are easily handled roughly during storage and transportation, which causes distortion, causing looseness during assembly, and the scaffolding itself bending. Furthermore, since scaffolding may be unstable during assembly and disassembly work, a lighter weight than conventional products was desired.

Therefore, the present invention was created in view of the above points, and an object of the present invention is to provide a scaffolding board that is lightweight and strong against distortion.

The main body consists of a central body disposed at the center, a pair of end bodies disposed at both ends of the central body, and groove-shaped side plates attached to respective sides of the central body and the end bodies. The central body has a rectangular shape as a whole, and a reinforcing part is bent into a groove shape in parallel to one edge of the central body, and connecting parts are bent in both edges parallel to the reinforcing part. The end main body has a rectangular shape as a whole, and a reinforcing part is bent into a groove shape in parallel to one edge of the end main body, and
A connecting portion is bent and provided on one edge parallel to the reinforcing portion, and an edge reinforcing portion is bent and provided on the other edge, and the connecting portion between the central body and the end body is When these connecting parts are connected, they form a groove-shaped structure, and the height thereof is bent to match the groove width of the side plate, and support pieces are formed on the side plate to support each reinforcing part. be.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a scaffolding board main body formed of a thin steel plate, which includes a central main body 2 disposed in the center, a pair of end main bodies 3 disposed at both ends of the central main body 2, the central main body 2, the end parts It is constituted by groove-shaped side plates 4 which are attached to the respective side surfaces of the main body 3.

The central body 2 has an overall rectangular shape, and is constructed by bending and providing a groove-shaped reinforcing part 5 with a rectangular cross section in the center, and providing connecting parts 6 at both edges parallel to the groove-shaped reinforcing part 5. There is.

The connecting portion 6 has an edge bent downward at a right angle, and the bending height is equal to the width of the groove of the side plate 4 minus the thickness of the connecting portion 9 of the end body 3.

The end body 3 has a groove-shaped reinforcement part 7 with a rectangular cross section, which is bent and provided in the center part, similar to the groove-shaped reinforcement part 5 in the center part of the central body 2, and a groove-shaped reinforcement part 7 parallel to the groove-shaped reinforcement part 7 is provided in the center part. One edge is provided with an edge reinforcing part 8 which is bent downward and the tip of the bent edge is bent in the direction of the reinforcing part 7 to have an L-shaped cross section; The other edge is bent downward and the tip of the bent edge is attached to a reinforcing part 7.
The connecting portion 9 is bent in the opposite direction to form an L-shaped cross section, and the tip of the bent edge is bent upward to provide a connecting portion 9 having a substantially L-shaped cross section.

Incidentally, a large number of anti-slip bosses 11 are protruded from the flat parts 10 on the central body 2 and the end bodies 3.

The connecting portion 6 of the central body 2 is placed on and joined to the connecting portion 9 of the end body 3 to form a groove-shaped connecting portion 12.

The depth of the groove-shaped connecting portion 12 is deeper than that of the groove-shaped reinforcing portions 5 and 7 provided at the center of the central body 2 and the end body 3, and The groove depth is set to match the groove width and fit into the groove.

The central body 2 and the pair of end bodies 3 are connected and joined by welding or the like via the connecting parts 6 at both ends of the central body 2 and the connecting parts 9 of the end bodies 3, and further, both sides thereof are formed into a groove shape. The scaffold board main body 1 is formed by being clamped by the side plates 4 and joined by welding or the like.

In addition, in order to support the groove-shaped reinforcing parts 5 and 7 of the hanging center main body 2 and the end main body 3, the side plate 4 is provided with supports that are joined to the lower surfaces of the reinforcing parts 5 and 7 by means such as welding. The piece 13 is formed by cutting and bending a part of the lower side plate 14 of the groove-shaped side plate 4.

The edge reinforcing parts 8 on both lengthwise edges of the scaffold board main body 1 have a structure in which the scaffold board main body 1 is connected to an erected scaffolding support member (not shown).
A support arm 15 for locking is provided protrudingly.

A stopper 16 is attached to the support arm 15 to prevent it from falling off the support member.

Furthermore, the shape of the groove-shaped reinforcing portions 5 and 7 is not limited to a rectangular cross section, but may be a semi-octagonal cross section, a triangular cross section, or a trapezoidal cross section, as shown in FIGS. 8, 9, and 10, respectively. Also good.

The present invention is constructed as described above, and includes a central body 2 disposed at the center, a pair of end bodies 3 disposed at both ends of the central body 2, and side surfaces of the central body 2 and the end bodies 3, respectively. Since the groove-shaped side plate 4 is clamped to the groove-shaped side plate 4, the number of parts and the number of assembly steps can be reduced.

In addition, since groove-shaped reinforcing parts 5 and 7 are provided at the center of the central body 2 and end bodies 3, the strength is equivalent to that of a conventional scaffold board with beams inserted at right angles in its length direction. can be obtained.

Furthermore, the weight of the scaffolding board itself can be reduced, which cannot be achieved by simply inserting beam materials.

Further, since the reinforcing portions 5 and 7 are provided by bending, the number of members and the number of assembly steps can be reduced.

The central body 2 has a rectangular shape as a whole, and connecting portions 6 are bent at both edges parallel to the reinforcing portion 5, and the end body 3 has a rectangular shape as a whole, with one edge parallel to the reinforcing portion 7. A connecting portion 9 is bent at the edge and an edge reinforcing portion 8 is bent at the other edge, and the connecting portions 6 and 9 between the central body 2 and the end body 3 are formed by bending the edge reinforcing portion 8 at the other edge. When the parts 6 and 9 are connected, it becomes a groove-shaped structure and is bent so that its height matches the width of the groove of the side plate 4, so that this connection is achieved in combination with the effect of the reinforcement parts 5 and 7. A groove-shaped connecting portion 12 consisting of portions 6 and 9 and a reinforcing portion 5,
7 are arranged in a ladder shape to obtain even more strength,
To make a scaffolding board solid and not cause distortion.

Moreover, since the groove-shaped connecting portions 12 are fitted into the grooves of the side plates 4, the central body 2 and the end bodies 3 can be reliably fixed to the side plates 4, making it even more robust.

Furthermore, the edge reinforcing portion 8 that is bent and provided on one edge of the end body 3 is not an independent member like the edge plate found in conventional scaffolding boards, so it reduces assembly man-hours. It is possible to reduce it.

The groove-shaped side plates 4 for clamping both sides of the central body 2 and the end bodies 3 are provided with support pieces 13 for supporting the respective groove-shaped reinforcement parts 5 and 7. ,
The center body 2, the end bodies 3, and the side plates 4 have the effect of maintaining even stronger joints.

As explained above, according to the present invention, the robustness of the scaffold board itself is increased, and the thickness of the scaffold board is smaller than that of the foot board used for various assembled scaffolds including conventional one-sided scaffolds. As a result, it is lighter, stronger and stronger than conventional ones, and has the same strength as a ladder-shaped beam, so the scaffolding board itself does not become distorted, and because it is lightweight, It has various beneficial effects, such as increasing the efficiency and safety of scaffolding assembly and dismantling work at high places.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a perspective view showing the whole, FIG. 2 is a cross-sectional view along the longitudinal direction of the whole, and FIG. 3 is a cross-sectional view along the width direction of the whole. Figure 4 is a side view of the support arm section, Figure 5 is a front view of the end body, Figure 6 is a front view of the central body, Figure 7 is a side view of the side plate, and Figures 8 to 10 are other views. FIG. 3 is a front view showing the shape of each groove-shaped reinforcing portion. 1... Scaffold board main body, 2... Central main body,
3... End main body, 4... Groove-shaped side plate,
5...Reinforcement part, 6...Connection part, 7...
...Reinforcement part, 8...Edge reinforcement part, 9...
... Connecting part, 10... Plane part, 11...
... Boss, 12 ... Groove-shaped connection part, 13 ...
...Support piece, 14...Lower side plate, 15...
...Support arm, 16...Stopper.

Claims (1)

[Claims] 1 Consisting of a central body disposed at the center, a pair of end bodies disposed at both ends of the central body, and groove-shaped side plates attached to respective sides of the central body and the end bodies,
The central body has a rectangular shape as a whole, and a reinforcing part is provided approximately at the center by bending into a groove shape parallel to one edge thereof, and connecting parts are provided by bending at both edges parallel to this reinforcing part. formed by
The end main body has a rectangular shape as a whole, and a reinforcing portion is bent into a groove shape parallel to one edge of the center shaft, and a connecting portion is provided on one edge parallel to the reinforcing portion. The connecting portion between the center body and the end body has a groove-shaped structure when these connecting portions are connected. A scaffold board characterized in that the height thereof is bent to match the groove width of the side plate, and the side plate is provided with support pieces for supporting each reinforcing portion.