JPH0631043Y2 - Scaffolding board for construction - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a scaffolding plate made of steel plate, which is mainly used when constructing or repairing a multi-storey building.

[Conventional technology]

In recent years, as a scaffolding device used when constructing or repairing a multi-story building, a plurality of sets of pedestal units made of metal pipes are added upwards or are connected by joint members so as to be extendable and foldable, thereby constructing a building frame. A structure has been developed in which the building frames are erected at predetermined intervals along the outer surface of the structure, and scaffolding boards are erected between these building frames in a vertical multi-stage manner. Since it can be used and can be used repeatedly and has a long life, it has been widely used.

Conventionally, as a steel plate scaffolding plate used for such a scaffolding device, for example, as shown in FIGS. 6 and 7, a long main member formed by bending a relatively thick steel plate. (P)
The front and rear side plate members (Q) and (Q), which are made by bending steel plates into U-shaped shapes, are welded to the open ends of the front and rear ends of each, and are engaged with the horizontal support rods of the building frame at both ends in the longitudinal direction. It is known that hook metal fittings (06) and (06) are attached one by one.

By the way, in the production of such a conventional scaffolding device, the central portion in the width direction of a steel sheet cut into a rectangular shape of a predetermined size is a long surface plate (01), and both left and right sides of this surface plate (01) are Bend downward at a right angle, and further bend the lower ends of the left and right bent parts inward at a right angle to form left and right side plates (02) (0
By forming 3) and left and right bottom pieces (08) (09)
While manufacturing (P), a pair of rectangular steel plates, which are separate members from the steel plate, are each bent into a U-shape, and front and rear side plates (04)
(05) and the front and rear bottom pieces connected to the lower ends of the side plates (04) and (05)
(010) (011), the front and back side plate member (Q) (Q) consisting of the joining pieces (04a) (05a) continuously provided at the upper ends of the front and back side plates (04) (05), The joining pieces (04a) (05a) are attached to both ends of the upper surface of the surface plate (01) mainly composed of scaffolding plates, and the front and rear bottom pieces (010) (011) are attached to both ends of the outer bottom surface of the left and right bottom pieces (08) (09). Each of them was overlapped and welded, and the hook metal fittings (06) and (06) were attached to predetermined positions on the outer sides of the front and rear side plate members (Q) and (Q).

[Problems to be solved by the device]

However, in manufacturing the scaffolding plate having the above-described conventional structure, a relatively thick steel plate is used to impart rigidity, and accordingly, the weight becomes large, which is inconvenient in handling.

Also, the main member (P) and the side plate member (Q) formed of steel plates
It is necessary to assemble (Q) with a predetermined shape, and at the same time, highly precise alignment work between each member (P) (Q) (Q) is required, so assembly work requires a lot of labor. In addition, it is extremely inefficient, and when joining these members (P) (Q) (Q) together, between the face plate (01) and the joining pieces (04a) (05a) and the left and right bottom pieces (08) (09)
Since it is necessary to weld at four places, which are roughly divided between the front and rear bottom pieces (010) (011), the manufacturing cost is extremely high, which is a serious problem in manufacturing.

Further, structurally, since a step (a) is generated at the both ends of the surface plate (01) in the length direction due to the joining of the joining pieces (04a) (05a), a slight step ( It is desirable to eliminate a) as much as possible from the viewpoint of safety, and there is a risk that the shoe tip may hit the step (a) and get stuck, and a high degree of safety is required when working in high places. As a scaffolding board of this kind, there remains a problem in ensuring safety.

The present invention has been made in view of such conventional problems, can simplify the manufacturing process, and is excellent in strength while using a thin steel plate as compared with the conventional product, and is also lightweight. Accordingly, the object is to provide a scaffolding board for construction, which is convenient in handling, can be made to have good accuracy, and can sufficiently secure safety in work at high places and can significantly reduce the cost. Is.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the scaffolding board for construction of the present invention, as shown in the drawings of the embodiment, has a rectangular surface plate (1) formed of a single steel plate. Left and right side plates with a certain height on all sides (2) (3)
In the scaffolding board for construction, which is integrally provided with the front and rear side plates (4) (5), the left and right side plates (2) (3) and the front and rear side plates (4) (5) with respect to the surface plate (1) It is formed by bending at a right angle, and the lower ends of the left and right side plates (2) (3) and the front and rear side plates (4) (5) with respect to these side plates (11) (12) (13) (14) Left and right bottom pieces (8) (9) and front and back bottom pieces (10) (11) bent at a right angle to the inside are continuously provided, and the front and back bottom pieces (10) (11) are connected to the left and right bottom pieces.
(8) Polymerization welding to (9), and further, a plurality of fixing plates (14) (14) at appropriate intervals over the length direction of the left and right bottom pieces (8) (9).
... (14) is mounted and characterized.

[Action]

The left and right side plates (2) (3) and the front and rear side plates (4) (5) are both made of a single steel plate and are formed by bending them by being integrally connected from the four edges of the surface plate (1). Since it is not necessary to join the left and right and front and rear side plates (2) to (5) to the surface plate (1) by welding, thin steel plates can be used as compared with conventional products in terms of strength and It is also excellent in transportation and handling, and these side plates (2) to (5) and surface plate (1) are also
Since the positional relationship is accurately set when the steel plates constituting the scaffold plate are stamped out, there is no positional deviation between the side plates (2) to (5) and the surface plate (1).

Further, in manufacturing, after bending predetermined portions of the steel plate stamped into the required size and shape at right angles, left and right bottom surface pieces (8) (9) and front and rear bottom surface pieces (10) (11) and It suffices to weld only the superposed portion, and in terms of strength, the rigidity is strengthened as compared with the conventional product, and the manufacturing process of the measles is significantly simplified.

Further, since there is no step on the surface plate (1) due to the connection with the side plates (2) to (5), the safety of the passage of the operator can be remarkably secured.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 5 show a scaffolding board for construction according to this embodiment.

As shown in FIG. 1 to FIG. 4, the scaffolding board of this embodiment is 1
It consists of a number of steel plates, the left and right side plates (2) (3) of a predetermined height on the four edges of a long rectangular surface plate (1), and the front and rear side plates (4) (5) higher than this by the thickness of the steel plate. ) Are integrally provided, and well-known hook metal fittings (6) and (7) for engaging with supporting rods provided on the building frame of the scaffolding device are attached to the front and rear end portions one by one.

That is, the left and right side plates (2) (3) and the front and rear side plates (4) (5) are surface plates.
Formed by bending at a right angle to (1), at the lower end of each of these side plates (2) to (5), bend at a right angle to the inside of the side plates (2) to (5). The left and right bottom surface pieces (8) (9) and the front and back bottom surface pieces (10) (11) are connected in series.
(8) The scaffolding plate main body (A) is formed by integrally joining the overlapping portions by welding in a state where both ends of the front and rear side plates (4) and (5) are superposed on the outer bottom surface of the (8) and (9). Further, the width of the front and rear side plates (4) (5) is formed to be slightly smaller than the width of the surface plate (1), and both ends of the left and right side plates (2) (3) and the front and rear side plates (4) (5) formed by this are formed. The hook metal fittings (6) and (7) are inserted into the gap between the hook metal fittings (6) and (7) and fixed by rivets, bolts, or welding, so that a pair of hook metal fittings (6) (6) ( A scaffolding plate formed by protruding 7) is formed.

Since the scaffolding board configured in this way is continuously installed between the scaffolding board device building frames, the hook metal fittings (6) (6) at one end of the adjacent scaffolding board and the other end Since the hook metal fittings (7) (7) are engaged in a state of sharing one support rod, the hook metal fittings (6) (7) of both scaffold plates do not interfere with each other at the same position on the support rod. As described above, the front and rear hook fittings (6) and (7) are arranged so as to be displaced from each other. In addition, a plurality of shallow parallel reinforcing ridges are provided on the upper surface of the surface plate (1) in the longitudinal direction.
(12) (12) (12) and non-slip punch holes (13) (13)… (13)
Are provided in large numbers.

Further, between the left and right bottom surface pieces (8) and (9), a plurality of fixing plates (14), (14), ... (14) are installed at appropriate intervals over the length direction, and each fixing plate ( 14) (14)… Besides both ends of (14)
It is welded to (8) and (9), which prevents the lateral deformation of the left and right side plates (2) and (3).

The scaffolding plate main body (A) is composed of, for example, one steel plate (C) punched out in a development pattern as shown in FIG.

That is, the steel plate (C) is provided with the pattern (1a) of the surface plate (1) in the central portion, and bending lines are formed on both left and right edges of the surface plate pattern (1a).
Form the patterns (2a) (3a) of the left and right side plates (2) (3) via (a ₁ ) (a ₂ ), and further fold them to the outer edge of the left and right side plate patterns (2a) (3a). Pattern of left and right bottom strips (8) (9) via lines (b ₁ ) (b ₂ )
While forming the (8a) (9a), the front and rear side plates (4) (5) pattern (4a) via bending lines (c ₁ ) (c ₂ ) at the front and rear edges of the surface plate pattern (1a) (5a) to form a, fold lines to the outer edges of the front rear side plate pattern (4a) (5a) (d 1) before and after the bottom piece via the _{(d 2) (10) (} 11) of the pattern (10a ) (11a) is formed, which is die-molded in the shape of a deformed cross as a whole, and is all right angled along each of the folding lines (a ₁ ) to (d ₂ ) using an automatic machine or the like. The scaffolding board main body (A) is produced by mountain-folding and welding the outer bottom surface of the left and right bottom surface pieces (8) (9) and the front and back bottom surface pieces (10) (11) overlapping with this by a known method. It is what is done.

The scaffolding plate of this embodiment configured as described above is a surface plate.
Since no step is formed on the upper surface of (1) due to welding of the joining piece as in the conventional case, the risk of getting stuck in the step is eliminated and the safety is significantly improved.

[Effect of device]

As described above, according to the present invention, it is composed of one steel plate, and the left and right side plates (2) (3) and the front and rear side plates (4) (5) are integrally connected from the four edges of the face plate (1). Since it is provided and can be formed by bending, the positional relationship of the side plates (2) to (5) with respect to the surface plate (1) is accurately set, and the positional deviation can be surely eliminated. Therefore, when manufacturing the scaffolding plate, it is possible to reliably prevent generation of defective products due to the positional displacement of the three steel plates as in the conventional case, and it is possible to efficiently produce a highly accurate scaffolding plate.

In addition, it can be manufactured by simply welding the left and right bottom surface pieces (8) (9) and the front and back bottom surface pieces (10) (11) superposed on the outer bottom surface of the bent parts of each part, so it is expensive. The number of places to be welded can be greatly reduced, and the effect of reducing the manufacturing cost is extremely large.

Furthermore, since there is no step on the surface plate (1) due to the connection with the side plates (2) to (5), it is possible to dramatically improve the passage safety of workers and compare with the conventional product. Even with thin steel sheets, sufficient strength can be obtained, weight can be reduced, and transportation and handling can be beneficial. Especially, it is possible to obtain an excellent effect in handling at high places and to obtain a product with excellent strength. In use,
It has achieved excellent effects that were unprecedented in terms of both manufacturing aspects.

[Brief description of drawings]

1 to 5 show an embodiment of a scaffolding board for construction according to the present invention. FIG. 1 is an external perspective view, FIG. 2 is an enlarged cross-sectional plan view of an essential part, and FIG. 3 is an essential part. FIG. 4 is an enlarged vertical front view, FIG. 4 is an enlarged vertical side view of a main part, and FIG. 5 is a development view showing an example of a die-cutting pattern of a steel plate which is a constituent material of the scaffold plate. Sixth
FIG. 7 and FIG. 7 show a conventional example, FIG. 6 is an enlarged vertical sectional front view of an essential part, and FIG. 7 is an enlarged longitudinal side view of an essential part. (1) …… Surface plate, (2) …… Left side plate, (3) …… Right side plate, (4)…
… Front plate, (5) …… Rear plate, (8) …… Left bottom plate, (9) ……
Right bottom piece, (10) …… Front bottom piece, (11) …… Rear bottom piece, (14)
...... Fixing plate.

Claims (1)

[Scope of utility model registration request] 1. A rectangular surface plate formed from a single steel plate.
Left and right side plates (2) (3) and front and rear side plates (4) of a certain height on the four edges of (1)
(5) In the scaffolding board for construction integrally provided with, by bending the right and left side plates (2) (3) and the front and rear side plates (4) (5) at right angles to the surface plate (1) Formed and left and right side plates
(2) (3) and the front and rear side plates (4) (5) at the lower ends of these side plates (11) (1
2) Left and right bottom pieces (8) (9) and front and bottom bottom pieces (10) (11) bent at right angles to the inside of (13) (14) are connected in series. (10) (11) is superposed and welded to the left and right bottom pieces (8) and (9), and further fixed to the left and right bottom pieces (8) and (9) at appropriate intervals by fixing a plurality of sheets. A scaffolding board for construction, characterized by being constructed by installing boards (14) (14) ... (14).