JPS5825907A - Method of splitting and stopping board material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This JAFJ4 relates to a method for preventing cracks in building boards.

As is well known, the shrinkage causes cracks to occur at the edges of the plates during multiple use, which causes the plates to crack. However, since such a metal band is nailed around the y4 part of the board, when the board gradually shrinks, the metal band wrapped around it will break down. As it did so, the blade began to sag, and we could not expect much of a sagging effect. When such a metal band is used seven times, there is a problem that as the plate material shrinks, the band partially swells, causing the band to get stuck and become extremely inconvenient to handle.

In addition, when fastening metal bands to the ends of plate materials, the fastening operation is troublesome, and furthermore, if a large number of plate materials are loaded in a packaged state, it is necessary to remove each of the planks and then attach the metal bands to each one. It had the disadvantage of poor work efficiency.

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a method for fixing the side of a plate material, which can reliably prevent cracking while maintaining the appearance of the plate material that is completely different from that of a plate material to which no crack prevention means have been applied.

According to this invention, since the corrugated plate made of a metal plate is driven into the end face of the plate material, even if a contractile force acts on the plate material and the end of the plate receives a reaction, the end of the plate The hammered nine-corrugated plate reliably controls the repulsion effect based on the convergence effect of the plate material, and completely prevents cracking of the plate material. Moreover, since the corrugated sheet metal is driven in such a way that it intersects with the wood grain, which is the direction in which the corrugated sheet cracks will propagate, the cracking will occur at the corrugated sheet portion, making it possible to completely prevent the board from cracking. For this reason, even when used as scaffolding for construction, it is easy to absorb shocks and vibrations. Since it is configured to be hit with a single pitch, there is no chance of it getting caught on the outside, and it is possible to prevent accidents on the scaffolding platform caused by partial bulges of the metal band.

Further, in the work of driving corrugated sheets, it is only necessary to drive the corrugated sheets into one side of the sheet material, so that it is possible to easily drive corrugated sheets into a large number of sheet materials in a packaged state.

This Hatsumachi OP embodiment having such characteristics will be described in detail below with reference to the drawings.

FIG. 41 shows a corrugated plate 1 which becomes a stopper member, and after sharpening a long metal plate, it is gently and repeatedly bent into a corrugated shape.

The size of the corrugated sheet 10 is as follows:
When the yen is driven in a predetermined direction which will be described later, one waveform of the corrugated plate l is formed to a size that is large enough to intersect with several grains of wood. Also, both ends of the corrugated sheet l are bent in the same direction, either upward or downward, so that they intersect the wood grain.
tcv keru.

In other words, when driving the above-mentioned corrugated sheet 1 into the board material, one side @1aillJ'fe board surface with a B stand up is shown in FIG. Drive with both ends intersecting the grain of board 2, corrugated board IF
The entire part i is driven into one surface of the plate material 2 so that it is inserted into the inner part.

When the board 2Ifi constructed in this way is used as a board for scaffolding, for example, some action will be exerted on the m part of the board 2 based on long-term sailing, but the nine-wave board 1 Therefore, the warpage is always controlled and the plate material is kept in a state where it is prevented from cracking at both sides.

In the above-described embodiment, a gently bent nine-wave metal plate is shown, but the present invention is not limited to this, and a triangular-shaped corrugated plate or a rectangular-shaped corrugated plate may also be used.

Furthermore, the driving surface of the end face of the corrugated sheet may be formed with concavities and convexities to facilitate driving, and in this case, the displacement of the corrugated sheet after driving the sheet material is completely eliminated.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing a corrugated plate in the method for fixing the side of a plate according to the present invention. FIG. 2 is a front view showing a plate after the method for fixing the plate side according to the present invention has been applied. 1... Corrugated board 2... Board material 8... Wood grain

Claims (1)

[Claims] 1. A method of fixing the corrugated metal plate on the end surface of the plate with the 1soW# edge intersecting the wood grain of the plate.