JPH037474Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a main rod for a scaffold board support frame used for assembling temporary work scaffolding mainly at construction sites and civil engineering sites. It is something.

<Prior art> Conventionally, in order to assemble this type of scaffolding board at a construction site, concrete formwork K was used, as shown in Attachment Figures 7 and 8, as shown in Japanese Utility Model Application Publication No. 57-4537, for example. Connecting metal fitting 0 in the connecting tightening hole of
By inserting and fixing one end of 2, the frame body 012 supporting the scaffolding board 011 was connected and fixed, and the vertically long main rod 01 was fixed to the concrete formwork K. .

<Problems to be solved by the invention> In this way, the applicant has proposed concrete formwork K.
As a means of securely fixing the main rod for the scaffold board support frame, the structure shown above as the conventional structure has been implemented, but in the case of this structure,
As mentioned above, since the structure utilizes the connecting holes formed in the concrete formwork, the erecting and fixing position of the main rod 01 is limited only to the position of the connecting holes in the formwork, and the concrete It has come to light that there are problems such as the inability to use concrete formwork K when lining hardened concrete walls after pouring (in this case, concrete formwork K is not needed and is not used). Even when concrete formwork K is used in construction work, there are no restrictions on the erecting and fixing position of the main rod 01, and even when concrete formwork K is not used, scaffolding To provide a main rod for a scaffold board support frame, which allows the assembly of boards to be carried out very easily, simply and quickly, with almost no positional restrictions.

<Means for solving the problems> Therefore, the present inventor has achieved the present invention as a means to achieve these objectives, and the structure is shown in FIGS. 1 to 3 as an example. For reference, the structure of the main rod 1 for connecting and fixing the frame 12 for supporting the scaffold board 11 is formed into a cross-sectional shape (L-shape or U-shape) consisting of a back plate 2 and side plates 3. Using vertically long rods, bend the top of the back plate 2 toward the back side to form an L-shape when viewed from the side to form a horizontal portion 4. , a movable member 5 having a length L longer than the length in the bending direction of the horizontal portion 4 is mounted so as to be slidable in the bending direction of the horizontal portion 4,
In addition, the structure of the moving member 5 is such that it has a downwardly open U-shape when viewed from the side, and has hanging parts 6 and 7 bent and hanging downward at both front and rear ends thereof. A bolt hole 8 is formed in the front side hanging part 6 located on the main rod 1 side among the hanging parts 6 and 7, and a tightening adjustment bolt 9 is screwed into the bolt hole 8. The front side hanging portion 6 is configured to be spaced apart from the back plate 2 of the main rod 1, and the side plates 3, 3 extending from both side edges of the back plate 2 of the main rod 1, Pin connection holes for connecting one end of each of the scaffold board support frame 12 and the inclined frame 13 that supports this frame 12 are located near the upper end and at a vertical position approximately midway in the vertical longitudinal direction. 10a, 10b, and 10c are formed through the structure.

<Function> By having such a structure, among the vertical and horizontal batten materials (thick timbers) that are erected outside the concrete formwork K and regulate the attitude of the concrete formwork K, the horizontal batten material B By hanging the horizontal part 4 at the top of the main rod 1 against the main rod 1 and tightening the bolt 9 in the tightening direction, the front side hanging part 6 of the movable member 5 is separated from the back plate 2 of the main rod 1. Then, the horizontal flap material B is clamped and fixed between the back plate 2 and the rear side hanging part 7.

<Example> The structure of an example will be described below based on the drawings.

To explain the embodiment shown in FIGS. 1 to 3 in more detail, the left and right side plates 3, 3 have narrow portions 3a, 3a near the upper end of the main rod 1.
The bolt 9 can be easily rotated using a tool, and a small protruding side plate 4 having approximately the same width as the remaining narrow width portions 3a, 3a has been removed.
a, 4a are also formed protrudingly on both sides of the horizontal portion 4 to regulate the moving direction of the moving member 5. Above the horizontal portion 4, a band-shaped plate 4b is provided with a small protruding side plate 4a,
4a and is fixedly fixed therebetween to prevent the movable member 5 from falling off from the horizontal portion 4. On the other hand, connecting pins 1 are connected to lower portions of the upper pin holes 10a and intermediate portions of the intermediate pin holes 10b and 10c of the side plates 3 and 3 via hanging chains 13 and 13, respectively.
4 and 14 are suspended. Near the bottom of the main rod 1, there is a lower connector 15 which is U-shaped in plan view as shown in FIG. It is attached to main rod 1 so that it can be used. The lower connector 15 has a protruding side plate 15a, and an arcuate recess 15b for round flaps and an engaging stepped portion 15c for square flaps are formed on the lower surface thereof. However, this lower connector 15 is used for greater safety because the main rod 1 is always acting in the pressure direction against the lower horizontal flap member B when viewed from the loading direction of the scaffold board 11. However, it is not an essential component.

Therefore, the movable member 5 on the horizontal part 4 at the top of the main rod 1
In this case, horizontal butterfly material B is a round butterfly material made of round tube (usually outer diameter
48m/m), it will be moved significantly, and in the case of square pipe made of square bata material (usually 60m/m on a side), it will be moved by a small amount.
The structure is such that it can be held securely in either case. In addition, if necessary, it can also be hung and fixed to horizontal timber materials.

In addition, there are pin holes 10b in the upper and lower parts of the middle part of the main rod 1,
As shown in Figure 5, 10c is formed when the concrete pouring surface is sloped, for example, like an embankment or sand control wall, and the upper and lower parts are horizontally moved along this slope. This is to make it easier to maintain the horizontal posture of the scaffold board support frame 12 by greatly changing the supporting posture of the inclined frame 13 when the assembled posture of the materials is greatly inclined in side view.

The embodiment shown in FIG. 6 shows another embodiment of the upper part of the main rod 1, in which a bolt hole 16 is formed in the horizontal part 4 of the main rod 1, and the moving member 5 is provided with a bolt hole 16 along the moving direction. A long hole 17 is formed, and a stepped bolt 18 is fixed to the bolt hole 16 through the long hole 17.

By doing this, the movable member 5 can be guided through the elongated hole 17 and slidably moved.In this case, as in the embodiment shown in Figs. It is not necessary to bridge the strip plate 4b fixed on the horizontal part 4, and the small protruding side plates 4a, 4a on both sides of the horizontal part 4 are not necessarily required.

In the above embodiments, the cross-sectional shape of the main rod 1 was described as being U-shaped, but the main rod 1 is
It may be an angled rod that is bent and protruded in an L-shape along one side of the rod.

<Effects of the invention> As is clear from the above explanation, the present invention is not subject to large restrictions on the mounting position as in the conventional structure, but by using the horizontal flap material as the object to be mounted. Therefore, the mounting position can be almost freely selected, and the scaffolding frame can be assembled according to the length of the scaffolding board. Moreover, even if the horizontal bevel material is round bevel material, it is square betta material. It has the remarkable effect of positioning and fixing the main rod to the baton material by simply tightening bolts, and is suitable for the facing work of buildings without the need for concrete formwork. This has the effect that it can be widely used for assembling scaffolding.

Furthermore, the scaffolding plate supporting frame relative to the main frame and the base of the inclined frame for maintaining its posture can be connected and disassembled simply by inserting and removing the connecting pins, making assembly and disassembly of the scaffolding frame extremely easy. It has this effect.

[Brief explanation of the drawing]

Figure 1 is an overall side view showing the assembled state of the present invention;
Figure 2 is an overall perspective view of the main rod, Figure 3 is a side view of the top of the main rod, Figure 4 is a perspective view of the lower fixing member, Figure 5 is a side view showing the deformed posture, and Figure 6 is a different example. FIGS. 7 and 8 are an exploded perspective view of the top of the main rod showing an example, and a partially cutaway assembled side view and a plan view showing a conventional example. In the figure, 1 is the main rod, 2 is the back plate, 3 is the side plate, 4 is the horizontal part, 5 is the moving member, 6.7 is the hanging part, 8 is the bolt hole, 9 is the tightening adjustment bolt, 10a, 10b are 11 is a scaffold board, 12 is a scaffold board support frame, 13 is an inclined frame, L is the length of the movable member, and L is the length of the horizontal member.

Claims (1)

[Scope of utility model registration request] A vertically long main rod 1 that connects and fixes a frame 12 that supports a scaffolding board 11, the main rod 1 is formed into an L-shaped or U-shaped cross section consisting of a back plate 2 and side plates 3. The top of the plate 2 is a horizontal part 4 bent toward the back side in an L-shape when viewed from the side, and has a movable member 5 slidably mounted on the horizontal part 4, the movable member The length L in the sliding direction of the horizontal part 4 is larger than the length in the circumferential direction of the horizontal part 4, and the hanging parts 6 and 7 are bent and suspended downward at both ends in the sliding direction. It is said that the structure has
A bolt hole 8 is formed in the hanging part 6 located on the side of the main rod 1 among both hanging parts 6 and 7, and a tightening adjustment bolt 9 is screwed into the hanging part 6, and the bolt hole 8 is screwed into the hanging part 6 located on the main rod 1 side. The side plate 3 has a pin connecting hole 10a at a position near the upper end and a position away from the upper end for connecting one end of each of the scaffold board support frame 12 and the inclined frame 13 that supports this frame 12. , 10b are formed through the main rod for the scaffold board support frame.