JPH0453218B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a synthetic resin foam block used in construction, and more particularly to a foam block with markings for convenient cutting.

(Prior Art) A construction method is currently being attempted in which foamed synthetic resin blocks are stacked on soft ground and a road is laid on top of them.

According to this construction method, the lightweight nature of the foam blocks prevents ground subsidence and enables rapid construction.

In addition, on land with steps, foam blocks are piled up on the land below the boundary, thereby reducing horizontal earth pressure and making the slope of the retaining wall on the step closer to vertical, thereby increasing the slope of the listed land. The inventors have also proposed a construction method that aims to improve the degree of utilization.

(Problems to be Solved by the Invention) The foam blocks used for the road embankment are produced in a factory. The material is then delivered to the site, and during construction, it is cut into a predetermined shape using an electric saw and a nichrome wire cutting machine in accordance with the geographic and design conditions of the site.

For example, like the foam block 1 shown in Fig. 2A, one end has a slope 2 in the width direction to match the curve of the road.
At the other end is a vertical hole 3 for placing a concrete pillar.
Cut and process.

Further, as shown in FIG. 2B, a roundness 4 that fits the manhole is cut, and a height direction gradient 5 is cut to create a slope on the wall of the structure, as shown in FIG. 2C.

However, applying a ruler to a foam block and drawing a guide line to a predetermined size before cutting it at the site requires time and effort, and it is difficult to quickly and accurately draw a guide line.

Therefore, an object of the present invention is to provide a foam block that can be easily cut on site.

(Means for Solving the Problems) A feature of the present invention is that cutting marks are provided on the surface of the foam block to serve as a guide when cutting.

(Example) An example of the present invention will be described based on FIG.

In FIG. 1A, cutting scales 7 are provided vertically on the entire circumference of the side surface 6 of the foam block 1 at regular intervals.

Here, the foamed block 1 is a block molded product of synthetic resin such as foamed polystyrene, foamed polyethylene, foamed urethane, etc., and foamed polyethylene (foamed styrene) is particularly desirable because it is inexpensive.

The cutting scale 7 of this embodiment is integrally molded with the foam block 1 when the foam block 1 is molded at a factory. That is, in a mold for molding the foam block 1 (not shown), protrusions forming the cutting scales 7 are provided at equal intervals on the portion forming the side surface 7 of the foam block 1, and the grooves shown in FIG. A cutting scale 7 having a shape is formed. The cross-sectional shape of the groove of the cutting scale 7 is
It may be U-shaped or V-shaped.

In this embodiment, the cutting scale 7 is placed on the foam block 1.
Since it is integrally molded with the scale, the scale does not disappear, and compared to adding it separately, the manufacturing process is reduced and the cost is low.

This cutting scale 7 is used, for example, as follows.

If you want to create a gradient in the height direction at the end of the foam block 1, for example, use the corners 8 of the side surface 6 and the cutting scale 7A.
A dashed dot line 10 connecting the upper end 9A and a dashed dot line 11 connecting the upper end 9B of the opposing cutting scale are set as cutting lines, and cutting can be carried out along these cutting lines.

Moreover, when it is desired to form a vertical hole, for example, the upper ends 12 and 13 of each of the cutting scale 7C and the cutting scale 7D
A one-dot chain line 14 extending perpendicularly from the center is set as a cutting line, and cutting is carried out along this cutting line.

Note that the present invention is not limited to the above embodiments.
For example, the cutting scale 7 may be integrally formed on the foam block 1 as in the above embodiment, or it may be attached by marking, printing, etc., or it may be attached on the entire surface of the foam block 1 as shown in FIG. It's okay. Furthermore, the scale referred to in the present invention is not limited to the scale of a ruler, etc., but may be any marking line along which to cut, and includes all of these lines. .

(Effects of the Invention) Since the foam blocks of the present invention are marked with cutting marks, they can be easily cut into appropriate shapes according to geographical conditions and design conditions on site, shortening the construction period and improving quality. improvement can be achieved.

[Brief explanation of drawings]

FIG. 1A is a perspective view of a foam block according to an embodiment of the present invention, and FIG. 1B is a partially enlarged view thereof. FIGS. 2A, 2B and 2C are perspective views showing an example of cutting a foam block. FIG. 3 is a perspective view of another embodiment of the invention. 2: Foam block, 7: Cutting scale.

Claims (1)

[Claims] 1. A cutting mark characterized in that a cutting scale or a cutting line is attached to the surface of a synthetic resin foam block used for construction as a guide when cutting the foam block into an appropriate shape. Construction foam blocks marked with.