JPH0322420Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a connecting device for scaffolding boards, specifically, a connection between scaffolding boards that forms a scaffold by connecting scaffolding boards such as temporary scaffolding. Related to ingredients.

(b) Conventional technology Conventionally, mutual connection between scaffolding boards was achieved by using a protrusion 3 at the end of the scaffolding board 31, as shown in FIG.
2 to form a step, and the protrusions 32 are assembled in a staggered manner to fix the parts, or as shown in FIG. 10, a projection 33 is provided at the end of one scaffold board 31 and A method of fixing by fitting the protrusion 33 to the end of the protrusion 31 is known.

(c) Problems that the invention aims to solve However, with conventional fixing means, when a plane is formed by arranging scaffold boards in parallel rows, for example, only the scaffold boards in the center are fixed after the plane is formed. It was structurally difficult to replace. Furthermore, it has been difficult to further increase the strength with conventional fixing methods.

(d) Means for solving the problem This device consists of an upper mold, a lower mold, and a fixture that presses and fixes the upper mold and lower mold. The lower mold holds the ends of each scaffold board to be connected. a lower mold stopper that can be touched;
The upper mold consists of a lower mold side wall that opens upward and is fixed to both ends of the lower mold stopper in parallel with the side surfaces of the connecting scaffolding boards and wider than the scaffolding boards, and a lower mold bottom that extends inward from the lower part of the lower mold side wall. connects the upper mold side wall that opens downward and can be fitted to the lower mold side wall, the upper mold ceiling surface extending inward from the upper mold side wall top, and the upper mold side wall upper part that can be fitted to the lower mold stopper. These problems are solved by providing a connecting device for a scaffolding board, which is characterized by comprising an upper stopper.

(e) Action Separate the upper mold and lower mold, and abut the ends of both scaffolding boards connected to the lower mold stopper from both sides. Then, the side surface near the end of the scaffold board comes into contact with the side wall of the lower mold, and positioning in the width direction is performed. The bottom of the scaffolding board is
It is positioned by coming into contact with the bottom of the lower mold.

Next, the upper mold side wall is fitted to the lower mold side wall, and at the same time, the upper mold stopper is fitted to the lower mold stopper, thereby positioning the ceiling surface of the scaffold board to the connector. Next, the upper and lower molds are clamped and clamped by a fixture to connect both scaffolding boards.

(f) Example Example of this invention Fig. 1 showing the plane, Fig. 2 showing the front side, Fig. 3 showing the bottom side, Fig. 2 A-A
FIG. 4 showing the cross section, FIG. 5 showing the right side of the example,
The explanation will be made with reference to FIG. 6, which shows the BB cross section of FIG. 1, and FIGS. 7 and 8, which show the state of use.

1 is an upper mold, 2 is a lower mold, and 3 is a bolt, which is a fixture. 4 is a scaffold board to be connected.

The lower mold 2 includes a lower mold stopper 5, a lower mold side wall 6, and a lower mold bottom surface 7. The lower mold stopper 5 is made of steel and has a U-shaped cross section, and can abut the ends of the scaffolding board 4 on both sides. The lower mold side wall 6 and the lower mold bottom surface 7 are made of an integral L-shaped steel material, and the upper part of the lower mold side wall 6 is open, parallel to the side surface of the connecting scaffolding board 4, and between the lower mold side walls 6, 6. is wider than the width of the scaffold board 4 and is fixed to the end of the lower die stopper 5. The upper mold 1 consists of an upper mold side wall 8, an upper mold ceiling surface 9, and an upper mold stopper 10. In this embodiment, the upper die ceiling surface 9 and the upper die side wall 8 are made of an integral L-shaped steel member. The upper mold side wall 8 is located parallel to the lower mold side wall 6 and the scaffold board 4, and the inner interval is larger than the outer circumferential interval of the lower mold side wall 6. The upper die ceiling surface 9 and the upper die side walls 8 are connected and fixed by an upper die stopper 10 made of steel and having a U-shaped cross section and with its opening facing downward. The gap between the inner walls of the opening of the upper mold stopper 10 is wider than the outer periphery of the lower mold stopper 5, and can be fitted. Numerals 11 and 12 are bolt holes screwed into the upper mold 1 and the lower mold 2, respectively.

Next, the operation of this embodiment will be explained.
The upper mold 1 and the lower mold 2 are separated, and each end of both scaffold plates 4 connected to both sides of the lower mold stopper 5 are brought into contact.
Next, the upper mold stopper 10 is fitted to the lower mold stopper, and the upper mold side wall 8 is fitted to the lower mold side wall 6, and then the upper mold and the lower mold are tightened and fixed using the fixture 3. Therefore, the scaffold board 4 is held between the upper mold 1 and the lower mold 2, and its movement in the width direction is restricted by the side walls.

In order to release the connection, it is sufficient to release the fixation between the upper mold 1 and the lower mold 2.

(g) Effects of the invention Therefore, with this invention, even when many rows of scaffolding boards are arranged in parallel, it is easy to remove only the desired scaffolding board from the upper and lower molds. It is possible to remove it.

Furthermore, since the surface of the connector that comes into contact with the end of the scaffolding plate is large, the strength of the connection is also improved.

[Brief explanation of the drawing]

Figure 1 is a plan view of an embodiment of this invention, Figure 2 is a front view of the same, Figure 3 is a bottom view of the same, and Figure 4 is Figure 2A.
-A sectional view, Figure 5 is the BB sectional view of Figure 1, Figure 6
Figures 7 and 8 are usage state diagrams, Figures 9 and 1.
Figure 0 is a diagram of a conventional example. 1...Upper mold, 2...Lower mold, 3...Fixing tool, 4...
...Scaffold board, 5...Lower die stopper, 6...Lower die side wall, 7...Lower die bottom surface, 8...Upper die side wall, 9...Upper die ceiling surface, 10...Upper die stopper.

Claims (1)

[Scope of utility model registration request] Consisting of an upper mold, a lower mold, and a fixture for pressing and fixing the upper mold and the lower mold, the lower mold has a lower mold stopper that can abut the ends of each of the scaffolding boards to be connected, and an upper opening, It consists of a lower mold side wall fixed to both ends of the lower mold stopper parallel to the side surfaces of the scaffolding boards to be connected and wider than the scaffolding board, and a lower mold bottom extending inward from the lower part of the lower mold side wall, and the upper mold has a downward opening. an upper mold side wall that can be fitted to the lower mold side wall; an upper mold ceiling surface extending inward from the upper part of the upper mold side wall; and an upper mold stopper that can be fitted to the lower mold stopper and connects the upper mold side wall upper parts. A connecting tool for scaffolding boards, characterized by comprising: