JPH0568590B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a construction scaffolding device used primarily 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, the applicant of the present invention has developed a scaffold that can be constructed and removed in a short time by manufacturing foldable scaffolding units and adding scaffolding units according to the height of the building to be constructed or repaired. devised a device.

However, in order to add scaffolding units above and below, it is necessary to connect the corresponding building frames of each unit in a straight line, but since each scaffolding unit has multiple building frames, there are many connection points between the building frames. There are multiple parts, and it is extremely difficult to connect the building frame at multiple locations at the same time while the upper scaffolding unit is being lifted in an unstable state.

The present invention aims to provide a replenishment structure that allows the above-mentioned building frame connection work to be easily performed.

(Means for Solving the Problems) The present invention has a structure in which a scaffolding unit is added to the top and bottom, in which scaffolding boards are installed in multiple stages vertically between building frames installed in parallel, and a lower scaffolding unit is used. A hole for inserting the connecting rod is provided at the upper end of the building frame in the upper scaffolding unit, and the upper half of the connecting rod is inserted into the lower end of the building frame in the upper scaffolding unit, and a long hole is formed in the upper half in the length direction. By passing a stopper pin fixed in the lower end of the building frame of the upper scaffolding unit through this elongated hole, the upper half of the connecting rod is held in a state where it does not come off and is also able to slide up and down with respect to the building frame. The present invention is characterized by an additional construction of a construction scaffolding unit in which the lower half part is inserted into the hole.

(Operation) According to the present invention, the lower end of the lifted frame of the upper scaffold unit is brought closer to the upper end of the frame of the lower scaffold unit, the connecting rod is artificially pushed up, and then the upper and lower frames are aligned in a straight line. By opening the connecting rod at , it can be dropped into the hole in the frame of the lower scaffolding unit, so after dropping it in the same way at each frame connection point, If you lower it, the addition will be completed in one go.

(Example) Hereinafter, each example of the present invention will be described using the drawings.

As shown in Fig. 1, the scaffolding unit 2 has a plurality of (four in the figure) building frames 1 arranged side by side at regular intervals in the lateral direction, and scaffolding boards 4... between these plurality of building frames. are constructed in multiple stages above and below, and in the three-dimensional construction state shown by solid lines in Figure 1, braces 5 are connected in an X-shape across adjacent building frames and at each stage.

Furthermore, 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 joint devices 7 having locking means at the positions indicated by arrows A in FIG.
...is inherited. When folding, the braces 5 are removed, the joints 7 are unlocked, and the building frame 1 is folded into each pedestal 6, thereby folding the entire scaffolding unit as shown by the chain lines in Figure 1. It is configured so that it can be folded vertically.

In FIGS. 2 and 3, reference numeral 39 denotes an engagement pin for attaching the brace 5, and with the end of the brace 5 fitted to the engagement pin 39, it is prevented from coming off by, for example, screwing a nut. . However, the retaining structure is not particularly limited, and may be selected from well-known techniques.

This scaffolding unit 2 is designed to correspond to the height of approximately 5.6 floors of the building to be constructed or repaired, so that workability such as transportation, assembly, folding, and lifting is good, and when the height of the building is large, As shown in FIG. 10, another scaffolding unit 3 having almost the same structure is added on top of the scaffolding unit 3. The number of building frames 1 of each scaffolding unit 2, 3 is not particularly limited, but as an example, the distance between a pair of adjacent building frames 1, 1 is approximately 1850 mm, and the upper and lower scaffolding boards 4, 4
The following dimensions are adopted, with a distance of approximately 1800 mm.

The pillar structure of the building frame 1 is in the shape of two gates, front and rear, as shown in FIGS. 2 and 3, and the parts near the upper ends of the front and rear pillars 6, 6 are connected by a support rod 8. . This 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 metal fittings 9 and 10 are attached to both ends of the scaffolding board 4, and these hook metal fittings 9 and 10 are engaged with the support rods 8 to connect between the building frames. Scaffolding board 4 is erected. 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 downwardly around the support rod 8 from the above-mentioned engaged state, 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. Since the hook fittings 9 and 10 are engaged with the support rod 8 in such a manner that they can rotate freely relative to each other, when the scaffolding device is extended and folded, the scaffolding board 4 follows these movements while remaining in a horizontally 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.

A joint device 7 for connecting the pillars 6 is constructed as shown in FIGS. 7 to 9. That is, when among the pillars to be connected by the coupling 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 these pillars 6a, It is constructed by interconnecting joint brackets 15 and 16 attached to 6b in the structure described below. That is, a pair of upper and lower joint brackets 15,
16 are connected by a fulcrum shaft 17 such as a bolt or nut by overlapping the parts extending from the base side to be attached to the pedestals 6a and 6b, respectively, and the pedestals are attached to the bases of both joint brackets 15 and 16. A metal sleeve 18 with the same diameter as 6a and 6b,
19 and fix the upper metal sleeve 18.
by connecting the fulcrum shaft 17 to the upper pillar 6a and the lower metal sleeve 19 to the lower pillar 6b.
The pillars 6a and 6b can be freely bent from the state shown in FIG. 8 to the state shown in FIG.

A joint pin 20 that protrudes largely upward is attached to the upper metal sleeve 18, and when this joint pin 20 is inserted into the upper pillar 6a, the joint pin 20 and the pillar 6a are connected to a bolt/nut 21.
It is fixed at Similarly, a joint pin 22 protruding downward is attached to the lower metal sleeve 19, and with this joint pin 22 inserted into the lower pillar 6b, the joint pin 22 and the lower pillar 6b are fixed with bolts and nuts 23. Ru.

Further, the lower end of the upper joint pin 20 partially protrudes below the metal sleeve 18, and when the protruding head 24 extends the pillars 6a and 6b vertically in a straight line, the lower metal sleeve 18
This locks the linear posture of both pillars 6a and 6b which are fitted inward. When the pillars 6a, 6b are bent, the projecting head 24 is detached from the lower metal sleeve 19 as shown in FIG. For this purpose, the position of the fulcrum shaft 17 and the joint 25 of both the metal sleeves 18 and 19 is set at d in FIG. Arrange them in a staggered manner as shown.

The fitting structure between the joint pin projecting head 24 and the lower metal sleeve 19 constitutes a locking means 26,
The joint pin protruding head 24 locks both the pillars 6a and 6b in a straight extended state. At this time, the vertical load of the building frame from the upper pedestal 6a side is mainly applied to the lower pedestal 6b through the joint 25 between the upper metal sleeve 18 and the lower metal sleeve 19, causing the fulcrum shaft 17 to break. I try not to have any.

Further, in FIGS. 7 to 9, 27 is a rivet pin that integrates the joint bracket 15, the metal sleeve 18, and the joint pin 20;
The joint bracket 16 and the metal sleeve 19
and a rivet pin that integrates the joint pin 22, respectively.

According to this joint device 7, if the joint brackets 15, 16, metal sleeves 18, 19, and joint pins 20, 22 are assembled separately in advance,
Joint pins 20, 2 for both pillars 6a, 6b
If 2 is attached with bolts and nuts, it can be easily installed and removed on site, making it extremely easy to manufacture and assemble the scaffolding unit.

It goes without saying that 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.

A well-known jacking device 29 is attached to the scaffolding unit 2 located at the bottom of each building frame 1 at the lower end of each building frame 1, that is, at the location indicated by the arrow B in Fig. 1, to maintain a horizontal position at the site where the scaffolding device is used. That's what I do.

On the other hand, the scaffolding unit 3 that is lifted up and added onto the scaffolding unit 2 is equipped with a connecting rod 30 (described later) at the lower end of each building frame 1 for connecting the building frames to each other.

As shown in FIG. 10, the upper scaffolding unit 3 connects the upper end of each building frame 1 to a horizontal lifting bar 31 via a wire 32a, and connects the horizontal lifting bar 31 to a lifting device (not shown) via another wire 32b. Lift it up and add it to the lower scaffolding unit 2.

For this purpose, as shown in FIG. 11, each of the lowermost pillars 6C of the building frame 1 of the upper scaffolding unit 3 is equipped with a connecting rod 30. The upper half of the connecting rod 30 is inserted into the pillar 6c, which is a metal pipe, and the stopper pin 33 fixed to the pillar passes through the elongated hole 34 in the vertical direction of the connecting rod 30. As shown in FIG. 10, when the upper scaffolding unit 3 is lifted, the lower half of the connecting rod 30 is inserted into the hole 35 of the uppermost pillar 6d of the lower scaffolding unit 2.
Both units 2 and 3 are added by inserting them into each other.

By the way, the connection points by the upper connection rod 30, that is, the points indicated by the arrow C in FIG. Top pedestal 6 with connecting rod 30 above
d must be plunge-fitted. However, it is extremely difficult to operate the suspended scaffold unit 3 in an unstable state and connect it to the lower scaffold unit 2 at four points at the same time. This becomes more noticeable as the number of building frames 1 of the scaffolding units 2 and 3 increases.

Therefore, as mentioned above, in the upper scaffolding unit 2, since the connecting rod 30 is structured to be able to freely slide up and down with respect to the pedestal 6c using the stopper pin 33 and the elongated hole 34, the connection operation according to the steps shown in FIG. Apply at each connection point.

First, as shown in FIG.
The connection rod 30 is slightly above the top of d.
protrudes slightly downward from the top pillar 6d.

Next, connect rod 3 artificially as shown in Figure 11B.
After pushing up the rod so that the lower end of the rod exceeds the upper end of the uppermost pillar 6d, move the upper scaffolding unit 3 laterally so that the lowermost pillar 6c is vertically coaxial with the uppermost pillar 6d. so that they line up.

Then, the connecting rod 30 that had been pushed up is released and the lower end of the rod is dropped into the hole 35 of the top pillar 6c as shown in FIG. is lowered to completely join the uppermost pillar 6d and the lowermost pillar 6c.

With this method, the upper scaffolding unit 3 is lowered all at once after each connection point is individually brought to the state shown in FIG. By doing so, all the connecting rods 30 can be completely fitted into the pillars 6d, and the connection of the upper and lower scaffolding units 2 and 3 can be completed, making it extremely easy to perform the addition work, and it can also be done by one worker. It is also possible to add parts sequentially.

In addition, in order to improve the strength of the joint part and prevent accidental separation by the connecting rod 30, the 11th
When the connection is completed as shown in Figure D, a separately manufactured coupling fitting 36 is fitted over the uppermost pillar 6d and the lowermost pillar 6c as shown in Figure 11E, and both pillars 6c, Through hole 3 pre-opened in 6d
At 7, 38, both pillars 6 are attached with bolts and nuts 39.
c, 6d and the coupling fitting 36 are integrally fixed.

In the case of the upper scaffolding unit 3, a through hole 38 for fixing the coupling fitting 36 is formed in the uppermost pillar 6d of the building frame 1. Therefore, when lifting the upper scaffolding unit 3 as shown in FIG. 10, the through hole 38 can be used to connect the horizontal lifting bar 31 with the wire 32a.

(Effects of the invention) As detailed above, when adding scaffolding units up and down, instead of connecting the building frames of the upper and lower scaffolding units at multiple locations at the same time,
Since the connecting rod is made to be able to slide upward, the relative positioning of the upper and lower scaffold units was determined by operating the connecting rod so that it fell slightly into the frame hole of the lower scaffolding unit at each frame connection point. Later, the connection of all the building frame connections could be completed by lowering the upper scaffolding unit, which greatly simplified the work of adding parts.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of the scaffolding unit according to the present invention, Fig. 2 is an enlarged front view of the building frame, and Fig. 3 is a schematic front view of the scaffolding unit according to the present invention.
Fig. 4 is a plan view of the scaffold board, Fig. 5 is a front view of the scaffold board, Fig. 6 is a perspective view showing the mounting state of the scaffold board, Fig. 7 is an enlarged view of the joint device, FIG. 8 is a side view of FIG. 7, FIG. 9 is an operating state diagram of the joint device, FIG. 10 is an explanatory diagram of the scaffolding unit addition work, and FIGS. 1... Building frame, 2, 3... Scaffolding unit, 4...
Scaffolding board, 6, 6a, 6b, 6c, 6d... pedestal,
30... Connection rod, 33... Stopper pin,
34... Long hole, 35... Hole.

Claims (1)

[Claims] 1. A scaffolding unit that is used by erecting scaffold boards in multiple stages above and below between the building frames installed in parallel, is a supplementary structure in which the scaffolding units are added vertically, and a connecting rod is inserted into the upper end of the building frame in the lower scaffolding unit. Provide a hole,
The upper half of the connecting rod is inserted into the lower end of the building frame of the upper scaffolding unit, and a long hole is provided in the upper half in the longitudinal direction, and a stopper pin is fixed into the long hole within the lower end of the building frame of the upper scaffolding unit. An architectural scaffolding unit in which the upper half of the connecting rod is held in a non-slip state by penetrating the rod, and is also slidable up and down relative to the building frame, and the lower half of the connecting rod is inserted into the hole. A patchwork structure.