JPH0583703B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a joint structure for a construction scaffolding device used mainly in the construction or repair of multi-story structures.

(Prior Art) Conventional scaffolding devices used in the construction or repair of high-rise housing, etc. are constructed by combining logs with wire, or by building a unit frame made of metal pipes in the vertical and horizontal directions. It is constructed by adding and connecting.

(Problem to be Solved by the Invention) Therefore, in the case of high-rise housing as described above, it takes a considerable number of days and workers just to erect the scaffolding and to remove the scaffolding after construction or repair of the high-rise housing. The problem was that the scaffolding costs were added to the construction and repair costs, making the construction costs high.

Therefore, there is a need for a collapsible scaffolding device that can be constructed and removed in a short period of time. The present invention aims to provide a joint structure useful for such collapsible scaffolding devices.

(Means for Solving the Problems) The present invention is a joint structure for a scaffolding device that is used by erecting scaffold boards in multiple stages above and below between building frames installed in parallel, and in which the above-mentioned building frames are In an upper pedestal and a lower pedestal that are configured by pedestals and are vertically adjacent to each other, joint brackets that extend laterally are fixed to the lower end of the upper pedestal and the upper end of the lower pedestal, respectively. At the same time, the tips of these joint brackets are connected to each other by a fulcrum shaft so that the upper pedestal and the lower pedestal can be bent around this fulcrum shaft, and the lower end opening of the upper pedestal and the lower leg A joint pin is provided protruding from one of the upper end openings of the pillars, and the other pillar opening is fitted into the joint pin to form a locking means that can be detached freely. It features a joint structure for architectural scaffolding equipment that receives vertical loads.

(Function) According to the present invention, since the plurality of upper and lower pillars constituting the building frame are mutually bendable, the building frame can be vertically folded or extended in units of pillars, and In the extended state, the building frame can be locked in a vertically straight state (the construction state of the scaffolding device) using a locking means using a joint pin.
Furthermore, in the locked state, the vertical load of the building frame is supported by the joint surfaces of the upper and lower pillars, and is less likely to act on the joint bracket connecting pin of the joint device, so that the connecting pin will not be damaged.

(Example) An example of the present invention will be described below with reference to the drawings.

As shown in Fig. 1, in the scaffolding device, building frames 1 are arranged side by side at regular intervals, the upper ends of these building frames 1 are connected to the upper interval regulating horizontal frame 2, and the lower ends are connected to the lower interval regulating horizontal frame 2. 3, and scaffolding boards 4 are erected between these building frames in multiple stages above and below, and in the three-dimensional construction state shown by the solid line in Figure 1, braces 5 are connected in a cross shape between adjacent building frames and at each stage. Ru.

Each building frame 1 is constructed by connecting a plurality of upper and lower pillars 6, and the upper and lower pillars are connected to each other by arrows A in FIG.
At the position shown in FIG. And when folding, use the above brace 5
Remove the locks from each joint device 7 and remove the building frame 1.
By folding each pillar 6, the entire scaffolding device can be folded downward as shown by the chain line in FIG.

The pillar structure of the building frame 1 is a gate-shaped pillar structure with two front and rear pillars as shown in FIGS. are connected. The support rod 8 also serves to engage the end of the scaffold board 4 with a hook fitting. That is, as shown in FIGS. 4 and 5, a pair of hook fittings 9 and 10 are attached to both ends of the scaffold board 4, and the hook fittings 9 and 10 are engaged with the support rods 8 to secure the building frame. A scaffold board 4 is erected between them. Further, a stopper 12 is attached to the hook fittings 9 and 10, and the stopper 12 is opened and closed using a pin 11 as a fulcrum. After the stopper 12 is rotated from the above-mentioned engaged state to the lower side of the support rod 8, the tip of the stopper 12 is fixed to the hook fitting by the stopper pin 13. 9 and 10, there is no danger of the hook fittings 9 and 10 accidentally coming off from the support rod 8. In this way, the hook fittings 9 and 10 are engaged with the support rod 8 so that they can freely rotate relative to each other, so when the scaffolding device is extended or folded, the scaffolding board 4 follows the future movement while remaining in a horizontal parallel position. .

Incidentally, since the hook metal fittings of the scaffolding plates 4, 4 on both sides are engaged with one support rod 8 as shown in FIG.
The positions of the right hook 10 and the left hook 9 of the scaffold board 4 are shifted so that they do not interfere at the same location. Further, on the upper surface of the scaffolding board 4, protrusions 14 to prevent slipping, punch holes for weight reduction, etc. are appropriately provided.

The joint device 7 of the pedestal 6, which is the main part of the present invention, is constructed as shown in FIGS. 7 to 9. That is, when among the pillars to be connected by the joint device 7, the upper one is 6a and the lower one is 6b, each pillar is composed of a metal pipe of the same diameter, and the lower pillar 6
A joint pin 15 is fitted and fixed into the upper end opening of b with its head protruding by a predetermined amount. A collar 17 is fitted over and integrated with the joint pin 15, and the collar 17 is joined to the upper end of the lower pillar 6b to position the joint pin 15.

Further, a joint bracket 18 is fixed to the outer circumferential surface of the upper end of the lower pedestal 6b by sandwiching a portion below the joint pin 15, and correspondingly, a joint bracket 18 is also fixed to the outer circumferential surface of the lower end of the upper pedestal 6a. The intrabracket 19 is fixed, and both brackets 18,1
9 are extended in opposite directions, and the two extending portions are overlapped and connected by a fulcrum shaft (bolt/nut) 20, so that both pillars 6a and 6b can freely bend around the fulcrum shaft 20. A device 7 is configured. Each joint bracket 18,
19 is fixed to the pillars 6a and 6b by rivets 21 and 22, of which the rivet 21 serves to fix the joint pin 15 to the lower pillar 6b. This joint device 7 is designed so that when both the pillars 6a and 6b are extended in a straight line as shown in FIGS. 7 and 8, the upper pillar 6a connects to the joint pin 15 of the lower pillar 6b.
When bent, the upper pillar 6a is detached from the joint pin 15 as shown in FIG. 9. For this reason, the lower end opening of the upper pedestal 6a is properly fitted into and removed from the joint pin 15. The positions of the fulcrum shaft 20 and the joint portion 23 of both pillars 6a, 6b are shifted as shown in d of FIG.

The fitting structure between the joint pin 15 and the upper pillar 6a constitutes a locking means 16, and both pillars 6a, 6b
Lock it with the joint pin 15 while extending it in a straight line. In addition, at this time, the vertical load of the building frame from the upper pillar 6a side is mainly applied to the lower pillar 6b through the joint 23 between the upper pillar 6a and the lower pillar 6b.
This prevents the fulcrum shaft 20 from being damaged.

Note that the joint pin 1 as the locking means 16
5 is provided on the lower pedestal 6b side, and the joint pin 15 is provided to protrude downward from the lower end of the upper pedestal 6a, and the upper end opening of the lower pedestal 6b is fitted into and detached from the joint pin 15. It may be configured as follows. Furthermore, as a matter of course, when the building frame 1 is folded by the joint device 7, the folding direction of the joint device 7 is reversed between the upper and lower joint devices, as shown in FIG.

FIGS. 10 and 11 show a horizontal frame 3 for regulating lower spacing for connecting and supporting the lower end of the building frame 1,
This horizontal frame 3 connects parallel horizontal rods 24 and 25 at the front and rear with a front and rear rod 26, and connecting brackets 27 are fixed to respective parts where the building frame 1 is to be connected. The support rod at the bottom of the building frame is fitted into the connecting bracket 27, and a restraining metal fitting 28 is placed over it to prevent the support rod from slipping out, and the restraining metal fitting 28 and the bracket 27 are connected with bolts and nuts 29, for example. I'm trying to fix it.

Furthermore, a plurality of jacking devices 30 are attached to the lower space regulating horizontal frame 3, so that the scaffolding device can be maintained in a horizontal position at the site where it is used. This jacking device 30 is shown in the figure in which a threaded rod 32 is threadedly inserted into a threaded cylinder 31 fixed to a horizontal rod 25, and the height is changed by vertical movement of the threaded rod 32 using the screw fitting.

Further, the upper interval regulating horizontal frame 2 corresponding to the lower interval regulating horizontal frame 3 is not shown since it is obtained by removing the jacking device 10 from the structure shown in FIGS. 10 and 11.

The mounting structure of the brace 5 to be attached after construction of the scaffolding device is not particularly limited, but the one shown as an example in FIG. Stopper piece 3
4, position the retaining piece 34 in line with the engagement pin 33, and after fitting the end of the brace 5, rotate the retaining piece 34 at 90 degrees as shown in the figure. It is bent to prevent it from coming off.

When the scaffolding device thus configured is not in use, that is, during storage or transportation, the building frame 1 is folded in a zigzag shape using the pillars 6 as basic units by the joint device 7 with the braces 5 removed. At this time, both ends of each scaffold board 4 are engaged with the support rods 8 of each pillar 6 via the hook fittings 9 and 10, so as the building frame 1 is folded, the scaffold boards 4 are also stacked vertically. The scaffolding device as a whole is folded flat. When in use, the scaffolding device is installed at a predetermined position on the construction site, and from a state where the levelness is maintained by the jacking device 30, the scaffolding device is hoisted through the upper spacing regulating horizontal frame 2 by a lifting device such as a winch. As a result, the building frame 1 is extended upward in a straight line, and the upper and lower pillars 6 are unified by the locking means 16. After that, the brace 5 is attached to complete the construction. Removal of the scaffolding equipment is performed in the reverse order.

(Effects of the Invention) As detailed above, according to the present invention, the building frame has a simple structure that can be folded up and down in multiple stages and extended in a straight line. Since it has a strong structure that can be supported by a surface, it has the advantage that scaffolding equipment using this joint structure can be made inexpensive and durable.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, with FIG. 1 being a schematic front view of the scaffolding device, and FIG. 2 being an enlarged front view of the building frame.
Figure 3 is a side view of Figure 2, Figure 4 is a plan view of the scaffolding board, Figure 5 is a front view of the scaffolding board, Figure 6 is a perspective view showing the installation state of the scaffolding device, and Figure 7 is the joint. An enlarged view of the device, Fig. 8 is a side view of Fig. 7, Fig. 9 is a diagram of the operating state of the joint device, Fig. 10 is a plan view of the horizontal frame for regulating the lower spacing, and Fig. 11 is a front view of Fig. 10. It is a diagram. 1... Building frame, 4... Scaffolding board, 6, 6a, 6b...
... Pillar, 7... Joint device, 15... Joint pin, 16... Locking means, 18, 19... Joint bracket, 20... Fulcrum shaft, 23... Joint portion.

Claims (1)

[Claims] 1 A joint structure of a scaffolding device in which scaffolding boards are installed in multiple stages above and below between parallel building frames, and the building frame is composed of a plurality of upper and lower pillars, and upper and lower adjacent upper pillars. and the lower pedestal, joint brackets extending laterally are fixed to the lower end of the upper pedestal and the upper end of the lower pedestal, respectively, and the tips of these joint brackets are connected to each other as fulcrum shafts. The upper pedestal and the lower pedestal are connected to each other so that the upper pedestal and the lower pedestal can be bent around this fulcrum axis, and a joint pin is attached to either the lower end opening of the upper pedestal or the upper end opening of the lower pedestal. comprising a locking means that protrudes and allows the other pillar opening to fit into the joint pin and to be detachable;
Also, a joint structure for architectural scaffolding equipment that receives vertical loads at the joint surfaces of the upper and lower pillars.