JPS5834290B2 - Kiyokuseito Inoseizouhouhou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a curved tank suitable for construction along the curved ceiling surface of a railway or road tunnel, for example.

Conventionally, in order to prevent water from leaking from the joints of finished concrete in railway and road tunnels, for example, a fifth
As shown in the figure, the side wall of the elongated gutter body A' is cut out at multiple locations, curved at the bottom, and attached to the finishing concrete B' of the tunnel while making contact with the concrete surface from below the joint. was.

However, a gap is created between the gutter body 4' and the conc IJ-) B' surface and by the notch C' of the gutter body A',
Water leaks out, and even if a sealant is used to close the gap, water often leaks out from the edges of the sealant after a long period of time.

The present invention overcomes the drawbacks of the prior art and provides a curved tank which can be easily manufactured and is suitable for installation along the curved ceiling surface of railway or road tunnels to catch water leakage. The purpose of this invention is to provide a method for manufacturing a tank.

The gist of the present invention is that a groove-shaped part is formed from one longitudinal end to the other end of a synthetic resin gutter-shaped body softened by heating, and a groove-shaped part is formed from one longitudinal end of the bottom of the groove-shaped part to the other end in the longitudinal direction. The synthetic resin gutter-like body is pressed between a mold having a convex curved surface toward the end and a mold having a protrusion that can fit into the groove and extends along the convex curved surface. The present invention relates to a method for manufacturing a bending tank, characterized in that molding is performed by molding.

Next, the present invention will be explained in detail with reference to the drawings.

In the present invention, thermoplastic resins such as hard vinyl chloride resins and polyolefin resins are suitable for the synthetic resin gutter-like body 1 used for manufacturing the bending tank.

The synthetic resin gutter-like body 1 is curved or bent into a groove shape, and includes commonly used synthetic resin gutter-like bodies having various cross-sectional shapes.

The synthetic resin trough-like body 1 is softened by heating.

In order to heat and soften the synthetic resin trough-like body 1, as shown in FIG. A method of heating inside the container is used.

Since the synthetic resin trough-like body 1 is softened by heating, it is preferable to heat the synthetic resin trough-like body 1 to a temperature higher than its softening temperature.

In the example shown in Fig. 1, the side wall part, which undergoes a large degree of dimensional change when molding is performed, is heated, and the bottom part is exposed above the medium 3, but the bottom part is heated to facilitate the molding of the bottom part. Of course, this is a good thing.

Next, the heated and softened synthetic resin gutter-like body 1 is molded into molds 4 and 8.
Introduce it between the two and press it to form a mold.

A groove 5 having the same cross-sectional shape as the synthetic resin gutter 1 is formed from one longitudinal end to the other in the pattern 4, and the bottom of the groove 5 in the longitudinal direction A convex curved surface is formed from one end to the other end.

The master die 8 is formed with a protrusion 9 that can fit into the groove 5 of the die 4 and follows the convex curved surface of the groove 5.

Therefore, in the present invention, for example, a heated and softened synthetic resin gutter-like body 1 is introduced between a mold 4 and a mold 8 as shown in FIG. After the synthetic resin trough-like body 1 is pressed and molded by pressing, it is forcedly or naturally cooled, and then the molds 4 and 8 are separated and taken out.

In this way, a curved gutter A is obtained in which the synthetic resin gutter-like body 1 is curved and molded so that the upper edges of the bottom and side walls have convex curved surfaces, as shown in FIG.

Incidentally, in order to introduce the synthetic resin trough-like body 1 between the molds 4 and 8, the trough-like body 1 heated and softened is introduced into the groove-like part 5 of the mold 4, and the mold 8 is pressed. Alternatively, the mold 4 may be pressed by introducing a gutter-like body so as to cover the protrusion 9 of the mold 8.

When using a curved gutter manufactured in this way, for example, as shown in Fig. 4, the upper edge of the side wall 12 should be aligned with the curved surface of the finishing concrete IJ-t-B of the tunnel, and the mounting brackets and fixing Attach the finished concrete B to the concrete surface from below the joint using a tool.

By attaching the upper edge of the side wall 12 of the curved gutter A to the concrete surface from below the finished concrete B, the side wall 1
There is no gap between the upper edge of the finished concrete IJ-1-B and the finished concrete IJ-1-B, and water that leaks from the joint of the finished concrete IJ-1-B is collected in the curved gutter A without leaking outside. Drained.

According to the method for manufacturing a curved gutter of the present invention, a groove-like part is formed from one longitudinal end to the other end of a synthetic resin gutter-like body softened by heating, and the bottom of the groove-like part is longitudinally The synthetic resin gutter-like body is placed between a mold in which a convex curved surface is formed from one end of the direction to the other end, and a mold in which a protrusion that can fit into the groove-shaped part and follows the convex curved surface is formed. Since the synthetic resin gutter-like body is molded by introducing and pressing the synthetic resin gutter-like body, the curved gutter can be easily manufactured with a simple device.

That is, since the synthetic resin gutter-like body is heated until softened and pressed between molds, a curved gutter of a predetermined shape can be formed with a small pressing force.

In addition, since the trough-shaped body is heated and softened beforehand and pressed between molds for molding, the molding between the dies is mainly done so that the bottom and upper edges of the side walls of the trough-shaped body have convex curved surfaces. It is possible to obtain a curved gutter without distortion by reducing the deformation of the gutter-like body.

The curved gutter manufactured in this way can, for example, adsorb water from below the joint of finished concrete in a tunnel while following the curved surface of the concrete, and the curved gutter catches and drains water leaking from the joint. be able to.

In addition, the curved gutter manufactured according to the present invention can be installed not only at joints of finishing concrete of tunnels, but also at joints of roof plates of large roofs with curved surfaces, and various other curved surfaces that require water leakage prevention. Clothes can be used suitably.

[Brief explanation of drawings]

Figures 1 and 2 are for explaining an example of the manufacturing method of the present invention. Figure 1 is a cross-sectional view showing a state in which a synthetic resin plate bent into a groove shape is heated, and Figure 2 is a molding process. FIG. 3 is a perspective view showing an example of a mold for performing this. FIG. 3 is a perspective view showing two sides of a curved gutter manufactured by the method of the present invention, and FIG. 4 is a side view showing its mode of use. FIG. 5 is a side view showing an example of a conventional usage mode. A... Curved gutter, 1... Synthetic resin board,
4...Mold, 5...Groove, 8...
...Mold, 9...Protrusion.

Claims (1)

[Claims] 1. A synthetic resin gutter-like body made of a synthetic resin which has been softened by heating has a groove-like part formed from one longitudinal end to the other end, and a convex curved surface from one longitudinal end to the other end of the bottom of the groove-like part. The synthetic resin gutter-shaped body is inserted between a mold in which a mold is formed and a mold in which a protrusion that can fit into the groove-shaped part and follows the convex curved surface is formed, and the synthetic resin gutter-like body is pressed and molded. A method for manufacturing a curved tank characterized by: