JPS62365Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a movable scaffold for use in steel structures.

Conventional mobile scaffolding consists of using a flange surface of a steel frame structure, a purlin, etc. as a guide surface, and installing a plurality of pairs of rollers on a pedestal that roll in contact with the inside and outside of this flange surface, and fixing the scaffolding part to this pedestal. In the mobile scaffolding, the movement of the rollers is obstructed by obstacles such as joints and mounting bolts located in each span of the rim and the purlin, making it difficult to move efficiently. According to this invention, a plurality of cylindrical rollers having axes parallel to the flange surface are brought into rolling contact with the outside of the flange surface, and a plurality of conical rollers having axes inclined with respect to the axis of the rollers are arranged in rolling contact with each other. By rolling the rollers into contact with the inside of the flange surface and mounting this pair of rollers on a pedestal made of fixed scaffolding, continuous movement is possible without being hindered by obstacles such as the rim or the main building. This provides a mobile scaffolding. Hereinafter, an embodiment of the moving scaffold of this invention will be explained.

Mobile scaffolding A consists of an upper pedestal 1 placed on the roof material of a steel frame building for which frame work has been completed, and a hanging pedestal suspended from the eave side end 2 of the pedestal 1 in a vertical direction parallel to the pillars of the building. 3, each made of angle material. The hanging pedestal 3 is provided with a scaffold 4 installed horizontally with respect to the hanging pedestal, and the lower end of the hanging pedestal 3 is provided with a plurality of scaffolds provided so as to be in contact with the rim of the building. A flat roller 5 is provided (see FIG. 1).
The roofing material of the steel frame building is composed of a gassho 6 made of H-shaped steel and purlins 7a and 7b made of channel steel. It is mounted on the upper surface of the roofing material by rolling contact between a plurality of pairs of clamping rollers 8 and a locking roller 9 provided in the section. Said clamping roller pair 8
At the lower surface of the ridge side end 10 of the upper frame 1, there are rollers 11 arranged in the extending direction of the main building 7a, and a conical oblique roller 12 having an axis inclined with respect to the axis of the roller 11. It is made up of

The rolling contact surface of the oblique roller 12 is connected to the roller 1
The roller 11 is provided with a collar 13. The oblique roller 12 rolls into contact with the inner surface of the flange surface 14 that protrudes toward the ridge side of the main building 7a, and the roller 1
1 is adapted to be in rolling contact with the outer surface of the flange surface, and is provided so as to sandwich the flange surface 14 from both sides and to be rotatably movable in the extending direction of the main building 7a (see FIG. 2). At this time, since the diagonal rollers 12 have a conical shape, the pair of clamping rollers 8 can move without being hindered by obstacles such as the mounting bolts 15 of the main building 7a. be done. The locking roller 9 is disposed on the lower surface of the upper frame 1 facing the eave-side direction main building 7b, and the locking roller 9 includes:
A collar 16 is provided and is in rolling contact with a flange surface 17 protruding toward the eave side of the main building 7b. When attaching this locking roller 9 to the above-mentioned position of the upper frame 1, the locking roller position adjustment bolt holes and mounting bolts are provided at appropriate intervals from the ridge side to the eave side of the upper frame 1. Locking roller 9 by 18
is adjusted to a good position with respect to the flange surface 17, and then fixed with bolts 18. In this way, the movable scaffold A is mounted on the roofing main buildings 7a and 7b, and the flat roller 5 provided at the lower end of the hanging pedestal 3 is rolled into contact with the rim of the building even against horizontal swinging. Therefore, moving scaffold A
is stable.

One embodiment of the moving scaffold according to this invention is as described above, and next, another embodiment will be illustrated and explained.

The mobile scaffold B includes a hanging pedestal 19 and a hanging pedestal 19.
It consists of an upper protruding arm 20 provided at the upper end, a lower protruding arm 21 provided toward the lower end of the hanging pedestal 19, and a scaffold 4 provided on the hanging pedestal 19. On the upper protruding arm 20, the pair of clamping rollers 8 shown in the above embodiments are arranged movably in the direction in which the protruding arm 20 projects, and the pair of clamping rollers 8 are bolted at appropriate positions. The lower protruding arm 21 is provided with a lower roller 24 composed of a horizontal axis roller 22 and a vertical axis roller 23. The moving scaffold B is H
Each roller group of the above-mentioned upper and lower protruding arms and the above-mentioned upper and lower protruding arms of a steel frame building wall section consisting of a shaped steel column and lip channel steel outer edges 25a and 25b arranged on the outside of the same column. It is suspended on the wall of the building by a transitional connection with (see Figure 3). The diagonal rollers 12 of the clamping roller pair 8 of the movable scaffold B in this suspended state are
The roller 11 of the roller pair 8 is in rolling contact with the flange inner surface 26 of the furring edge 25a, and the lip portion 27a of the furring edge prevents the roller from moving in the vertical direction. (See Figure 4). Further, the lower roller pair 24 is in rolling contact with the flange outer surface 28b and the lip portion 27b of the trunk edge 25b, respectively.

The scaffold 4 is provided with a handrail 29 to prevent falling and a scaffold reinforcing member 30 to improve safety and robustness.

One embodiment of the mobile scaffold according to this invention is as described above, and has the following advantages.

It is possible to suspend a mobile scaffold by using the base materials such as the purlins and girders made of channel steel of the steel structure. Moreover, the roller pair uses a cylindrical roller and a conical roller with an inclined axis, and the bottom of the cone is in rolling contact with the inner surface of the flange, so that bolts, etc. for attaching or connecting the base material are attached to the web of the base material. Even if a protrusion is provided, the conical roller can avoid this and move, allowing efficient continuous work.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a movable scaffold A placed on the roof material of a steel frame building, Fig. 2 is a side view showing each roller part of the movable scaffold A, and Fig. 3 is a side view of the movable scaffold A placed on the roof material of a steel frame building. FIG. 4 is a side view showing the movable scaffold B suspended on the movable scaffold B, and FIG. 4 is a perspective view showing the relationship between the pair of clamping rollers and the trunk edge of the movable scaffold B. 1... Upper frame, 2... Eave side end, 3... Drooping frame, 4... Scaffolding, 5... Flat roller, 6...
...Passions together, 7a, 7b... Main building, 8... Holding roller pair, 9... Locking roller, 10... Ridge side end, 11
...Roller, 12 ... Oblique roller, 13 ... Flange, 14 ... Flange surface, 15 ... Mounting bolt, 16 ... Flange, 17 ... Flange surface, 18 ...
...Mounting bolt, 19...Descent frame, 20...
Upper protruding arm, 21...Lower protruding arm, 22
... Roller, 23 ... Roller, 24 ... Lower roller, 25a, 25b ... Flange, 26 ... Flange inner surface, 27a, 27b ... Lip portion, 28a, 2
8b... Flange outer surface, 29... Handrail, 30...
Reinforcement material.

Claims (1)

[Scope of utility model registration request] A movable scaffold in which a plurality of pairs of rollers are mounted on a pedestal and are attached to a pedestal, and a scaffold part is fixed to the pedestal, and suspended from the flange of a base material made of channel steel of a steel frame structure, The pair of rollers includes a cylindrical roller that is pivotally supported by an axis that is parallel to the outer surface of the flange and rolls into contact with the outer surface of the flange, and a cylindrical roller that is pivoted by a shaft that is inclined with respect to the axis of the cylindrical roller and that is attached to the flange. A moving scaffold comprising a conical roller that rolls into contact with the inner surface of the flange, the bottom of the conical roller rollingly contacting the inner surface of the flange.