JPH08199502A - Synthetic-resin combination block - Google Patents

Abstract

PURPOSE: To fit and bond synthetic-resin combination blocks continuously on a swamp and a weak ground, and to pass a car, etc., as planking by forming mutually fitted and connected recessed surface sections and projecting surface sections to the side peripheral surfaces of the blocks having polygonal planes. CONSTITUTION: A thermoplastic resin and a thermosetting resin are formed into a synthetic-resin combination block 10 by cold or hot pressing. A plurality of recessed or projecting non-slips 12 are formed to the surface section 11 of the block 10 at that time, and recessed surface sections 21, 21a-21c and projecting surface sections 31, 31a-31c are formed at the central sections of the sides of a side peripheral surface 13. The recessed surface sections 21 and the projecting surface sections 31 are arrayed alternately for continuously fitting and bonding the blocks 10 in the arbitrary direction. Structure, in which the bottom sections 32 of the projecting surface sections 31 are brought into contact with the upper sections 22 of the recessed surface sections 21, is formed. The block has a shape that the maximun width (a) of the projecting surface sections 31 is larger than the minimum width (b) of the recessed surface sections 21. Accordingly, the block can be installed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin combination block which is continuously fitted and bonded on a wetland or a soft ground to be used as a floor plate for traffic such as vehicles.

[0002]

2. Description of the Related Art Conventionally, as a base plate, a reinforcing material is integrated on the back side of a flat plate made of synthetic resin or a flat plate of wood, or an L angle or a groove type member on the back side of a metal plate. Reinforced items are used.

[0003]

However, the conventional floor plate is weak in strength and is distorted or cracked when a large vehicle or the like passes by. Further, when a large vehicle or the like passes by, a floor plate laid on one side of the vehicle separates from each other and is not useful as a floor plate.

Further, the above-mentioned conventional floorboard has a heavy weight per sheet, and a lot of labor has been required for transportation and installation work.

[0005]

The present invention has been made in order to eliminate such a drawback, and has a concave surface portion and a convex surface portion, which are fitted and connected, on a side peripheral surface of a block having a polygonal plane. The synthetic resin combination block is characterized in that the bottom of the convex surface portion contacts the upper portion of the concave surface portion, and the maximum width of the convex surface portion is larger than the minimum width of the concave surface portion and continuously fitted and connected.

[0006]

[Function] It is convenient for vehicles and the like to pass as a floor plate by being continuously fitted and coupled on a wetland or soft ground.

[0007]

First Embodiment One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a synthetic resin combination block 10 of the present invention.
2 is a perspective view showing a back surface 40 of the synthetic resin combination block 10, and FIG. 3 is a plan view of the synthetic resin combination block 10 which is continuously fitted and joined to form a floor board, FIG. 4 is a sectional view taken along the line AA in FIG.

The synthetic resin combination block 10 is made of a thermoplastic resin such as polyethylene resin, polypropylene resin, nylon resin, polycarbonate resin, ABS resin or the like, or a thermosetting resin such as phenol resin or urea resin, which is cold press molded, hot pressed molded, or injected. It is manufactured by a method such as molding.

Explaining the first embodiment by way of example, it is possible to use a polygonal shape whose plane is a triangle or more. Figures 1-3
As shown in FIG. 3, the synthetic resin combination block 10 having a hexagonal plane has a characteristic that it can be extended in any direction because it has an aesthetic appearance and can be continuously fitted and coupled.

As shown in FIGS. 1 and 2, a plurality of concave or convex anti-skids 12 are provided on the surface portion 11 of the synthetic resin combination block 10. A concave surface portion 21 (21a to 21c) is formed in the central portion of the side surface 13 of the synthetic resin combination block 10.
And a convex surface portion 31 (31a to 31c). In order to continuously fit and combine the synthetic resin combination block 10 in a free direction, it is desirable that the concave surface portions 21 and the convex surface portions 31 be alternately arranged.

As shown in FIGS. 1, 2 and 4, the bottom portion 3 of the convex surface portion is shown.
When the structure in which 2 contacts the upper portion 22 of the concave surface portion, the respective synthetic resin combination blocks 10 can be fitted and joined together. At this time, if the maximum width a33 of the convex surface portion is made larger than the minimum width b23 of the concave surface portion as shown in FIG.

As shown in FIGS. 1 and 2, a space for the receiving portion 24 is provided at the bottom of the concave surface portion 21 and a positioning projection 34 is provided at the bottom portion 32 of the convex surface portion so that the synthetic resin combination block 10 can be easily fitted and coupled. The structure is integrated so that the positioning protrusion 34 can be inserted into the receiving portion 24.

As shown in FIG. 3, even when the convex portion 35 at the end is not fitted to the other synthetic resin combination block 10, the positioning projection 34 is provided even if the vehicle is placed on the convex portion 35 at the end. Since it is grounded on the ground 48 shown in FIG. 3, there is no fear that the convex portion 35 at the end will break or crack.

When the vehicle passes over the surface portion 11 of the synthetic resin combination block 10 as shown in FIG. 4, the weight of the vehicle must be supported by the synthetic resin combination block 10. In order to support the weight of the vehicle, if the synthetic resin combination block 10 has a full-walled shape, it becomes heavy. Therefore, if the rear surface 40 shown in FIG. The weight of the synthetic resin combination block 10 can be reduced. Further, if the meat-thickness portion 46 (46a) is provided on a part of the bottom of the concave surface portion 21 and the meat-thickness portion 46b is provided on a part of the bottom portion 32 of the convex surface portion, the weight can be further reduced.

When the vehicle passes over the surface portion 11 of the synthetic resin combination block 10 as shown in FIGS. 2 and 4, the weight of the vehicle is supported by the side peripheral surface 13 and the ribs 42. Equally distributed pressure (load) on the surface 11 when the vehicle passes
If 5 is Pkg / cm ² , then the evenly distributed pressure (load)
Since 15 receives pressure in a range 43 surrounded by the respective ribs, the plate thickness t14 of the surface portion is a disk (fixed support) formula for receiving a uniformly distributed pressure (load). ×
(R / t) ² × P can be used. Note that σkg
/ Cm ² indicates the allowable stress of the material of the synthetic resin combination block 10, and (radius Rmm44) indicates the radius when the range 43 surrounded by the ribs is converted into a circle.

The ribs 42 are arranged in a range 4 surrounded by each rib.
Radial ribs 49 so that the areas of 3 are as equal as possible.
And the circumferential rib 50 are crossed to form a shape close to a circle.
In order to facilitate the mold release of the rib 42 after the molding, the plate thickness e52 of the root rib is made thicker than the plate thickness d51 of the tip rib by making a taper. It is desirable that the plate thickness e52 of the root rib be as equal as possible to the plate thickness t14 of the surface portion.

A space 47 is provided between the rib 42 and the ground 48, and drainage grooves 45 (45a to 45f) and (45g to 45).
If i) and (45j to 45l) are attached, it is possible to easily continuously fit and connect to a wetland, a soft ground, or a place with a large unevenness.

[0018]

Since the synthetic resin combination block 10 of the present invention is lightweight as described above, it can be easily installed even by an amateur, is well drained, has an aesthetic appearance, and is easily passed by vehicles and the like. Has the advantage that

[Brief description of drawings]

FIG. 1 is a perspective view showing a synthetic resin combination block of the present invention.

FIG. 2 is a perspective view showing a back surface of the synthetic resin combination block.

FIG. 3 is a plan view of a floorboard obtained by continuously fitting and combining the synthetic resin combination blocks.

4 is a cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

 10 Synthetic resin combination block 12 Non-slip 13 Side peripheral surface 21 Concave surface portion 21a Each concave surface portion 21b Each concave surface portion 21c Each concave surface portion 22 Upper part of concave surface portion 23 Minimum width of concave surface portion b 31 Convex surface portion 31a Each convex surface portion 31b Each convex surface portion 31c Each convex surface portion 32 Bottom of convex surface portion 33 Maximum width of convex surface portion a 42 Rib 43 Range surrounded by ribs 44 Radius R 45 Water drain groove 45a Each water drain groove 45b Each water drain groove 45c Each water drain groove 45d Each water Drainage groove 45e Water drainage groove 45f Water drainage groove 45g Water drainage groove 45h Water drainage groove 45i Water drainage groove 45j Water drainage groove 45k Water drainage groove 45l Water drainage groove 48 Ground

Claims (2)

[Claims] 1. A block having a polygonal flat surface has a concave surface portion and a convex surface portion which are engaged and connected with each other, a bottom portion of the convex surface portion contacts an upper portion of the concave surface portion, and a maximum width of the convex surface portion is A synthetic resin combination block characterized by being continuously fitted and connected to each other with a width larger than the minimum width of the concave portion. 2. The synthetic resin combination block according to claim 1, wherein the back surface has a rib structure.