JP7214514B2 - Rail pedestal for mobile scaffolding - Google Patents

Description

TECHNICAL FIELD The present invention relates to a mobile scaffold rail pedestal that supports a mobile scaffold rail for supporting casters provided on the mobile scaffold.

At construction sites, mobile scaffolds having casters on their legs are sometimes used. The mobile scaffold is placed on rails, and is moved by running casters on the rails. A mobile scaffold may be installed on a slope. Conventionally, as a scaffold installed on a slope, for example, a scaffold described in Patent Document 1 is known. This scaffolding includes a pedestal provided on a stepped installation target surface and supporting a plurality of legs of the scaffolding. H steel, for example, is used for this pedestal. In addition, as a pedestal on a slope for a mobile scaffold, a single pipe is generally assembled in accordance with the slope, and a rail for the mobile scaffold is placed on the single pipe pipe installed in the horizontal direction.

JP 2016-204982 A

However, the installation surface on which the scaffolding is installed is not necessarily formed in a stepped shape, but may be formed in a slope. If H steel is installed on such a slope and used as a pedestal, the scaffolding becomes unstable. In addition, if the pedestal on the slope for the mobile scaffolding is installed by assembling with a single pipe, it is troublesome and the workability is deteriorated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a rail pedestal for a mobile scaffold that can improve the stability of the mobile scaffold and improve workability with a simple configuration. do.

In order to achieve the above object, the present invention provides a mobile scaffolding rail pedestal for supporting a mobile scaffolding rail on which casters provided at the lower ends of legs of the mobile scaffolding are mounted, the rail pedestal being fixed to a slope. a pair of flanges, a pair of standing plates erected upward from the opposite sides of the pair of flanges, and a pair of standing plates that are installed on the pair of standing plates to mount the moving scaffolding rail. a placing plate, wherein the standing plate is formed in a trapezoidal shape such that a lower side connected to the flange part is in contact with the slope and an upper side connected to the placing plate is horizontal; It is a rail pedestal for mobile scaffolding.

According to the present invention, since the upright plate is formed in a trapezoidal shape in accordance with the slope, the mounting plate is horizontally installed, and the moving scaffolding rail can be stably supported.

Advantageous Effects of Invention According to the present invention, it is possible to improve the stability of a mobile scaffold and improve workability with a simple configuration.

1 is a front view showing a usage state of a mobile scaffold according to an embodiment of the present invention; FIG. FIG. 2 is a perspective view showing the configuration of a mobile scaffolding rail;

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the base for rails for mobile scaffoldings which concerns on this invention is described, referring drawings. The mobile scaffold rail is a rail that movably supports a mobile scaffold provided with casters at the lower ends of legs of the scaffold. Hereinafter, the direction seen from the short end face of the mobile scaffolding rail (the Y-axis direction in the drawing) will be described as a front view.

As shown in FIG. 1, the mobile scaffolding rail 1 is installed on a slope E such as the installation surface of spectator seats in a stadium, and is used when the mobile scaffolding S is used for work at high places such as ceilings. The mobile scaffold S includes legs B1 and B2 whose lengths are adjusted to match the slope E. A plurality of moving scaffolding rails 1 are installed at different height positions on the slope E to support the legs B1 and B2. Casters C are provided at the lower ends of the legs B1 and B2. The caster C is mounted such that the axle C1 is horizontally offset from the axes of the legs B1 and B2 when viewed from the axial direction of the axle C1. This facilitates the rotation of the casters C when the mobile scaffold S changes direction. The moving scaffolding rail 1 includes a rail portion 10 supported by a pedestal 20 (moving scaffolding rail pedestal) provided on a slope E of an installation target surface.

As shown in FIG. 2, the pedestal 20 includes a pair of flange portions 21 for fixing on the slope E, a pair of standing plates 22 standing upward from respective opposing sides of the pair of flange portions 21, A mounting plate 23 is provided on which the upper sides of the pair of standing plates 22 are laid. The pedestal 20 is formed by bending a 3.2 [mm] thick metal plate, for example.

The flange portion 21 is formed in a rectangular plate-like body. A pair of bolt holes 21A are formed in the flange portion 21 . The flange portion 21 is arranged along the slope E when viewed from the front. The bolt hole 21A is formed as an elongated hole. The flange portion 21 is fixed to the slope E with anchor bolts and nuts through bolt holes 21A. An upright plate 22 is formed upright from one side of the flange portion 21 .

The upright plate 22 is formed in a trapezoidal shape when viewed from the front. The upright plate 22 is formed so that the lower side is in contact with the slope E and the upper side is horizontal. A mounting plate 23 bridges the upper sides of a pair of opposing standing plates 22 . The mounting plate 23 is formed in a rectangular plate-like body. The mounting plate 23 is provided so as to be arranged horizontally. A rail portion 10 is mounted above the mounting plate 23 .

When fixing the pedestal 20 to the slope E, a spacer may be installed on the lower surface of the flange portion 21 in order to adjust the height and angle of the mounting plate 23 . Further, in order to level the mounting plate 23 , the mounting angle of the base 20 to the rail portion 10 may be adjusted to fix the base 20 to the rail portion 10 . Moreover, the spacer may be provided between the mounting plate 23 and the rail portion 10 .

The rail portion 10 includes, for example, a rail member 11 formed by bending a metal plate, and a steel pipe 15 supporting the rail member 11 . The steel pipe 15 is placed on the pedestal 20 . The steel pipe 15 extends along the longitudinal direction and has a rectangular cross section. Ends of the plurality of steel pipes 15 are joined together on the pedestal 20 . A connecting member F connects the base 20 and the steel pipe 15 . The ends of the steel pipes 15 are also connected by connecting members F. As shown in FIG.

The connecting member F is formed in an L cross-sectional shape. The connection member F includes a flat plate F1 formed in a rectangular plate-like body, and an upright piece F2 formed in a rectangular plate-like body erected upward from the flat plate F1. The flat plate F1 is fixed to the mounting plate 23 with bolts and nuts. The standing piece F2 is formed so as to abut on the side surface of the steel pipe 15. As shown in FIG. The upper end of the standing piece F is welded to the rail member 11 (rail plate 12 or guide portion 13, which will be described later). As a result, the pair of connecting members F that face each other constrain the horizontal movement of the steel pipe 15 so as to sandwich the side surface of the steel pipe 15 . The steel pipe 15 is inserted into a rectangular space surrounded by the pedestal 20 , the pair of connecting members F, and the rail member 11 . Thereby, the steel pipe 15 supports the rail member 11 .

That is, the pair of connecting members F are formed so as to sandwich and fix the steel pipes 15 of the mobile scaffolding rail 1 from both sides. Since the pair of connecting members F are provided on the pedestal 20 in this manner, the moving scaffolding rails 1 are prevented from slipping and the moving scaffolding rails 1 are prevented from slipping, since the moving scaffolding rails 1 are fixed by sandwiching them from the sides. rail 1
can be supported more stably.

The rail member 11 includes a strip-shaped rail plate 12 . The rail plate 12 is supported along the longitudinal direction of the steel pipe 15 . The rail plate 12 supports the casters C. A pair of swash plate-like guide portions 13 are formed on both longitudinal sides of the rail plate 12 . The pair of guide portions 13 extend in a belt shape along the longitudinal direction of the rail plate 12 . The pair of guide portions 13 are formed with slopes so as to jump upward as they are separated from both ends of the rail plate 12 when viewed in cross section from the short direction. The guide portion 13 is formed with an inclined surface so that the dihedral angle of the guide portion 13 jumps up in the range of 20° to 70° with respect to the rail plate 12 when viewed in cross section from the lateral direction.

Since the pair of guide portions 13 are formed, when the caster C rides on the guide portions 13 while traveling on the rail plate 12, the caster C moves down the guide portions 13 due to the load applied below the mobile scaffold S. and return to the rail plate 12 naturally. Further, when the moving scaffold S changes direction and the caster C rotates, since the guide part 13 is dihedral, the caster C is not caught on the guide part 13 and the rotation is not hindered. A bent portion 14 is formed at the upper end of the guide portion 13 by bending the end portion downward along the longitudinal direction. By forming the bent portion 14, the bending rigidity of the guide portion 13 is improved. That is, since the bent portion 14 is formed in the guide portion 13 , the guide portion 13 is prevented from being deformed when the caster C rides on the guide portion 13 .

The ends of the plurality of rail members 11 are butted against each other. As long as the rail members 11 are firmly fixed to the steel pipes 15, the ends of the plurality of rail members 11 do not necessarily have to be connected. The ends of the plurality of rail members 11 do not necessarily have to be connected at the position of the pedestal 20 . That is, the joints of the rail members 11 may be connected so as to deviate from the position of the pedestal 20 .

According to the pedestal 20 applied to the moving scaffold rail 1 as described above, the moving scaffold S installed on the slope E can be stably supported. Moreover, since the base 20 is formed by bending a metal plate, the manufacturing cost can be reduced. Moreover, according to the pedestal 20, since it is fixed to the slope E with an anchor bolt and a nut, construction work can be simplified. Moreover, according to the pedestal 20, work and transportation can be performed manually during dismantling and transportation, and workability can be improved.

An embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the scope of the invention. For example, the pedestal 20 and the connecting member F may be fixed not only by bolts and nuts, but also by welding.

1 Moving scaffolding rail 10 Rail portion 11 Rail member 12 Rail plate 13 Guide portion 14 Bending portion 15 Steel pipe 20 Pedestal 21 Flange portion 21A Bolt hole 22 Standing plate 23 Mounting plate

Claims (1)

A mobile scaffold rail pedestal for supporting a mobile scaffold rail on which casters provided at the lower ends of legs of the mobile scaffold are mounted,
a pair of flanges fixed to the slope;
a pair of erecting plates respectively erected upward from opposite sides of the pair of flange portions;
a mounting plate mounted on the pair of standing plates and on which the moving scaffolding rail is mounted;
The upright plate is formed in a trapezoidal shape so that the lower side connected to the flange portion is in contact with the slope, and the upper side connected to the mounting plate is horizontal.
Rail pedestal for mobile scaffolding.

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