JPS5812991Y2 - temporary scaffolding stairs - Google Patents

Description

[Detailed explanation of the invention] This invention is a staircase for temporary scaffolding during building construction, etc.
In particular, the present invention relates to scaffolding stairs having a structure advantageous for storage and transportation.

As shown in the front view of FIG.
The pillars 2, 2 are connected by welding or the like, and hook-shaped hooks 4 attached to the ends of both pillars 2, 2 are used by locking them to the horizontal members 8, 8 of the scaffold.

In order to minimize the bulk of such stairs during storage and transportation, multiple staircases are stacked on top of each other as shown in Figure 2, but since the stacking height H becomes high, it is difficult to stack and unload the stairs.
<, Because the stacking condition is not stable and the load is likely to collapse due to vibration etc. during transportation, it is not possible to store too many items, so a large storage area is required.7) There was a point IK.

The present invention significantly reduces the stacking height H mentioned above.1. ．． ::, There are some attempts to provide stairs for storage areas that can be stably stacked with L or H.

FIG. 3 is a plan view showing an example of the stair tread 1 of the present invention.

That is, in the present invention, the left and right edges 3, 3 of the treadle are placed between the pair of left and right pillars 2, 2 at position A.

In the front and rear parts of A, the width between A and A, that is, both pillars +, 1 interval W
It is characterized in that it is provided in a shape with a narrower width W1 and has two points at t-2.

In the illustrated example, the column mounting position JA, A is set approximately at the center of both the left and right edges 3, 3 of the tread, and the tread has a short parallel part R for welding the column before and after point A. Subsequently, a tapered portion C is formed whose width gradually decreases.

On the top surface (tread surface) of the second tread plate (, 1, for example, by floating between two rows of short slits S/ and Sr in the width JJ direction, slide +f and t protrusions 5 (Fig. 4). The tread plate is reinforced with groove-shaped ribs 6 running vertically and horizontally, and the tread plate peripheral edges 3, 3 and 3',
3' forms seven lunges as shown in FIG. 6, providing sufficient strength.

The above-mentioned treads were molded 1, and then welded or attached to a pair of pillars 2, 2 at the widest parts of both the left and right edges 3, 3 of each tread, as shown in Figure 1. Due to the shape of the tread side edges of the scaffolding stairs shown in Fig. 3, the pillars of each stair can be stacked closely together, front and back, as shown in Fig. 5, and therefore the stacking height H is This will be significantly reduced compared to the conventional one shown in FIG.

At the same time, the fitting of the treadle plates makes the stacked state extremely stable.

In this way, the scaffolding stairs of this invention can be assembled in large numbers in an extremely stable and low-volume manner, making it suitable for storage, transportation, stacking, etc.
It is a practical idea, as loading and unloading work is not only easy and safe, but also space-saving, and there is no concern that the load will collapse due to vibrations during transportation.

[Brief explanation of the drawing]

Figure 1 shows the general structure of a scaffolding staircase, with A being a front view and the opening being a side view. Fig. 2 is a side view showing a stacked state of conventional scaffolding stairs, Fig. 3 is a plan view showing the treads of the scaffolding stairs according to the present invention, and Fig. 4 is a side view showing the treads partially cut away. Figure, 5th
The figure is a side view showing the stacked state of the scaffolding stairs of the present invention. In the diagram: 1: Treadboard, 2: Post material, 3: Left and right edges of the treadboard, 4
: Hanging tool, 5: Slip stopper, 6: Reinforcing rib, 7: Flange, 8: Horizontal member of scaffolding frame.

Claims (1)

[Claims for Utility Model Registration] Each footboard 1 is connected by a pair of left and right pillars 2, 2, and the left and right edges 3, 3 of each footboard are connected at the mounting position A of the pillars. A staircase for temporary scaffolding, characterized in that the width of the staircase is narrower than the width W of the left and right pillars in the front-rear direction of A, so that a plurality of stairs can be stacked with the pillars closely touching each other in the front and back.