JPH0125858B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-elevating assembly scaffold, which includes a plurality of columns having an interlocking structure and a lifting device metal fitting that can be fixed to the columns and at the same time movable in the vertical direction along the columns. an upper scaffolding frame, and a plurality of lower scaffolds that are removably supported by hanging materials suspended from the upper scaffolding frame, and that are movable up and down along the pillars, and that are detachable from the pillars. The upper scaffolding frame, which is made up of a frame, can be automatically moved vertically along the support column using lifting device metal fittings, and can be attached and detached, and the scaffold can be assembled and restored using a plurality of lower scaffolding frames. The purpose of the present invention is to provide a self-elevating assembly scaffold that is lightweight with a small number of parts, reduces assembly man-hours, is inexpensive to manufacture, and has excellent safety.

Conventional mobile scaffolding has two types: elevator type and hanging type, but the former has disadvantages such as a complicated structure and high manufacturing cost, and there are structural limitations because it is an elevator type. It has structural disadvantages such as not being able to stand on its own and causing sway. The present invention eliminates these drawbacks,
The object of the present invention is to provide a self-elevating assembly scaffold that is lightweight with a small number of parts, reduces assembly man-hours, is inexpensive to manufacture, and has excellent safety. DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure and operation of the self-elevating assembly scaffold of the present invention will be explained in detail below with reference to the drawings.

Fig. 1 is a front view showing one embodiment of the automatic lifting type assembly scaffold of the present invention, Fig. 2 A, B, C, D, and E are explanatory diagrams showing each stage of its assembly; Partial front view showing the structure of the lifting device metal fitting part in Figure 4.
The figures are explanatory diagrams (a is a front view, b is a plan view) showing an application example in which an automatically elevating assembly scaffold of the present invention is disposed inside a cylindrical tank for interior use.

In Fig. 1, 1 indicates a column, 2 indicates an upper scaffold frame, and 3 indicates a lower scaffold frame.The column 1 is formed in an interlocking manner, and in the example shown in Fig. 1, four columns 1 are used to construct an assembled scaffold. forming the earth. The upper scaffolding frame 2 can be moved vertically along the support 1 by means of a lifting device fitting 5 (an example of which is shown in FIG. 3) attached to the upper scaffolding frame 2, and is fixed to the support 1 at the same time. It is set up so that it can be done. As shown in FIG. 3, the lifting device metal fittings 5 include two lifting actuators 6 and 7 fixed to the upper scaffolding frame 2 in parallel to both sides of the column 1, and the upper scaffolding frame 2 and the lifting actuators 6 and 7. Two stop actuators 8 and 9 are respectively fixed to both of the elevating plate 12 installed at the end of the piston rod.
The lifting plate 12 is fixed to the pillar 1 by inserting it into the hole 13 bored in the pillar 1 of the bottom part 11 at the end of the piston rod of the stopping actuator 9, and the lifting actuators 6 and 7 are fixed to the pillar 1. It operates to move the upper scaffolding frame 2 upward along the column 1, and conversely, the bottom part 10 of the piston rod end of the stop actuator 8 is inserted into the hole 13 drilled in the column 1 to move the upper scaffolding frame 2 upwardly along the column 1. The scaffolding frame 2 is fixed to the column 1, and the lifting actuators 6 and 7 are operated in the opposite direction to lift the lifting plate 1.
2 is provided to move upward along the support column 1. In addition to this, a type of elevating device metal fitting that moves while chucking the column 1 by operating an actuator is also conceivable. Note that the actuator used here may be any hydraulic cylinder, pneumatic cylinder, electric motor type cylinder, or the like. The plurality of scaffolding frames 3 are provided with guide holes 16 drilled in their peripheries so as to be inserted through the pillars 1, so that they can be moved in the vertical direction along the pillars 1, and at the same time, they are provided with guide holes 16 drilled in the periphery thereof so as to be able to move in the vertical direction along the pillars 1. Holes 14, 14' drilled in the horizontal direction
By inserting the 〓 into the required lower scaffolding frame 3
It is provided so that it can be fixed at a required location on the support column 1. In addition, the lower scaffolding frame 3 has a guide hole 17 bored at a position corresponding to the hanging material 4 suspended from the upper scaffolding frame 2.
Insert the hanging material 4 into the horizontal holes 15 and 15' bored in both the hanging material 4 and the guide hole 17.
As shown in the figure, it is provided so that it can be supported in a stacked manner by the hanging material 4 by inserting the material into the material.

Assembly of the self-elevating assembly scaffold of the present invention having the above-described structure will be explained with reference to FIG. 2. As shown in FIG. 2A, a required number of lower scaffolding frames 3 are stacked in a layered manner by inserting the pillars 1 into their guide holes 16, and hanging materials suspended from the upper scaffolding frames 2 are stacked in the layered manner. Scaffolding frame 3
All of them are supported by the upper scaffolding frame 2, and preparation for assembly is completed, and this is installed at a predetermined position on the site.

FIG. 2B shows the addition of the struts 1 (the addition of the struts 1 may be performed sequentially as the scaffold assembly process progresses). FIG. 2E shows an example of the additional structure, which is connected by a connecting pin 18 of the support column 1 and fixed by a stop pin 19. Next, as shown in FIG. 2C, the upper scaffolding frame 2 is moved up along the support 1 together with the plurality of lower scaffolding frames 3 supported by hanging members by operating the lifting device fittings 5 attached to the scaffolding frame 2. When the lowermost scaffolding frame 3 reaches a predetermined position, the lowermost scaffolding frame 3
are inserted into the holes 14 and 14' and fixed to the column 1. Next, the fixed connection of the hanging member 2 to the lower scaffold frame 3 at the lowest position is released by removing the holes inserted through the holes 15 and 15', and by operating the lifting device fitting 5, The upper scaffold frame 2 is moved upward together with the remaining lower scaffold frames 3, leaving the lowermost lower scaffold frame 3 fixed to the upper scaffold frame 2. By repeating the above operations, assembly of the scaffold at a predetermined height is completed as shown in FIG. 2D. After the assembly is completed, the handrail 20, braces, stairs, etc. (not shown) are attached as necessary.

By reversing the assembly order described above, it can be easily restored to its original, ready form as shown in FIG. 2A. In addition, it is also possible to use a lower scaffolding frame 3 that is provided with foldable stairs in advance, and to automatically complete the installation of the stairs by assembling the scaffolding main body.

Next, as an application example that most skillfully utilizes the features of the automatic lifting type assembly scaffold of the present invention, an automatic lifting type assembly scaffold for use inside a cylindrical tank shown in FIG. 4 will be described. Reference numeral 21 indicates a cylindrical tank, and 22 is a pedestal installed so as to be rotatable concentrically with the cylindrical tank 21.
The self-elevating assembly scaffold of the present invention is assembled on the pedestal 22 and placed so as to be movable horizontally on a track laid diametrically on the pedestal 22, for example. The automatic lifting type assembly scaffold of the present invention can easily carry out assembly work inside a cylindrical tank, and can also improve the height of the peripheral wall or center of the dome-shaped ceiling during maintenance of the interior or inner surface of the cylindrical tank. The height of the scaffold can be easily adjusted according to the difference in height, and it has the optimal conditions as a scaffold used inside a cylindrical tank.

In addition to the embodiments shown above, for example, the hanging material 4 may be constructed of a chain, the length of which is matched to the height of one stage of the scaffolding, and the lifting member 4 may be assembled to the top stage at once using the lifting device fittings 5. Afterwards, it is also possible to complete the assembly of the scaffold by fixing the lower scaffold frame 3 of each stage to the support column 1.

The self-elevating assembly scaffold of the present invention having the structure and function described above has the following objectives: it is lightweight with a small number of parts, reduces assembly man-hours, has low manufacturing costs, and is superior in safety. It is fully effective and fully achieves the purpose originally stated.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the automatic lifting type assembly scaffold of the present invention, Fig. 2 A, B, C, D, and E are explanatory diagrams showing each stage of its assembly, and E is a column connection structure. FIG. 3 is a partial front sectional view showing the structure of the lifting device metal part in FIG. 1, and FIG.
The figures are explanatory diagrams (a is a front view, b is a plan view) showing an application example in which an automatically elevating assembly scaffold of the present invention is disposed inside a cylindrical tank for interior use. The following is an explanation of the symbols in the drawings: 1: Support column, 2: Upper scaffolding frame, 3: Lower scaffolding frame, 4: Hanging material, 5: Lifting device metal fittings, 6, 7: Actuator for lifting upper scaffolding frame 2, 8: Upper part Scaffolding frame, 2 fixing actuator, 9: Lifting plate, 12 fixing actuator, 1
0, 11: Actuators 8, 9, 12: Lifting plate, 13: Hole drilled in support 1, 14, 1
4': Holes drilled in the guide holes of the pillar 1 and the lower scaffold frame 3, 15, 15': Holes drilled in the guide holes of the hanging material and the lower scaffold frame, 16: Pillar inserts provided in the lower scaffold frame. General guide hole, 17: Hanging material insertion hole provided in the lower scaffold frame, 18: Connecting pin, 19: Stopping pin,
20: Handrail, 21: Cylindrical tank, 22: Frame.

Claims (1)

[Scope of Claims] 1. An upper scaffolding frame equipped with a plurality of columns with an interlocking structure that serve as a base for scaffolding, and a lifting device fitting that can be fixed to the columns and at the same time movable in the vertical direction along the columns. and a plurality of lower scaffold frames which are detachably supported by hanging materials suspended from the upper scaffold frame, and which are movable in the vertical direction along the above-mentioned pillars and which are detachable from the pillars. An automatic device characterized in that the upper scaffolding frame is automatically moved vertically along the support and attached/detached using the lifting device metal fittings, and the scaffolding can be assembled and restored using a plurality of lower scaffolding frames. Elevating assembly scaffolding. 2. A plurality of posts with an interlocking structure that serve as the base for scaffolding, an upper scaffolding frame equipped with lifting device fittings that can be fixed to the posts and at the same time movable up and down along the posts, and the upper scaffolding frame. A device for lifting and lowering the upper scaffold frame, comprising a plurality of lower scaffold frames that are removably supported by hanging materials suspended from the support pillars, are movable in the vertical direction along the support pillars, and are attached to and detachable from the support pillars. A self-elevating assembly scaffold is installed in a cylindrical tank, which is installed so that it can be automatically moved up and down along the support column using metal fittings, attached and detached, and assembled and restored using multiple lower scaffold frames. The automatically elevating and lowering assembly scaffold according to claim 1, wherein the scaffold is placed so as to be movable in the horizontal direction on a rotatable frame that is laid concentrically.