JPH09195210A - Footpath paving block and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a block for walkers to hardly slip and hardly suffer a fracture if falling down by jointing hard inorganic particles with the deposition of thermally melted rubber particles. SOLUTION: Inorganic particles 2 are heated to a higher temperature than the melting temperature of rubber particles 3. After mixed with the rubber particles 3, they are put into a mold for press molding. With the heat of the inorganic particles 2, the surfaces of the rubber particles 3 are melted to joint the inorganic particles 2 thereto. At this time, if the rubber particles 3 are previously heated to a lower temperature than the melting temperature thereof, they are prevented from being cooled down below the melting temperature by the time when press-molded and so accurately molded. In this way, it is effectively applicable to a passageway and a floor where walkers easily slip.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sidewalk paving block which is spread on sidewalks such as roads and parks, and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, concrete blocks or ceramic tiles have been used for sidewalk pavement, but they are expensive, and they are slippery and hard, so they are easily broken when they fall. was there.

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is that conventional sidewalk paving blocks are expensive, slippery, and prone to fracture when falling.

[0004]

[Means for Solving the Problems, Actions and Effects] As means for solving the above problems, the invention of claim 1 is a sidewalk pavement in which hard inorganic particles such as gravel are bonded by welding of heat-fusible rubber particles. It is a block for use, and it is possible to use waste material such as waste sand, ceramic waste, slag, etc. as the inorganic particle material, and old tire pieces, rubber scrap, etc. as the heat-meltable rubber particle material. In addition, the raw material cost is low and the cost is low.Because the inorganic particles are bonded with rubber, it gives a proper elasticity, and the inorganic particles can increase the frictional force, making it difficult to slip and falling. However, the invention of claim 2 is characterized in that the heat-fusible rubber particles are mixed with hard inorganic particles such as gravel heated to a temperature higher than the melting temperature of the hot-melt rubber particles, Pressurization Be capable of binding the inorganic particles lend 熔 the surface of the rubber particles by the heat of the inorganic particles from a manufacturing method of the form to sidewalk paving block according to claim 1
The block according to the present invention has the effect of being able to be manufactured at low cost. Further, the invention of claim 3 preliminarily heats the fusible rubber particles in the invention of claim 2, so that it is more effective than inorganic particles. It has the effect of binding firmly.

[0005]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is a block for sidewalk pavement of the present invention, which is an inorganic particle 2 of several mm to 1-2 cm.
Are joined together by welding the heat-fusible rubber particles 3 having substantially the same dimensions to form a rectangular flat plate.

For the inorganic particles 2, a hard material having excellent wear resistance such as gravel such as waste sand, ceramic waste, and slag is suitable.

Further, as the rubber particles 3, old tire pieces, rubber scraps and the like are suitable.

To manufacture the sidewalk paving block 1, the inorganic particles 2 are heated to a temperature higher than the melting temperature of the rubber particles 3, mixed with the rubber particles 3, and then placed in a mold and press-molded. By doing so, the surface of the rubber particles 3 is melted by the heat of the inorganic particles 2 to bond the inorganic particles 2.

At this time, if the rubber particles 3 are preheated to a temperature lower than the melting temperature, the rubber particles 3 are prevented from being cooled to a temperature below the melting temperature before press molding, and can be reliably molded.

In the present invention, the sidewalk means not only a road but also a place where a person walks, and the present invention can be effectively applied to a place where a pedestrian can easily slip, such as a poolside, a corridor or floor of a nursing home. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a sidewalk paving block of the present invention.

[Explanation of symbols]

 2: Inorganic particles 3: Rubber particles

Claims (3)

[Claims] 1. A sidewalk paving block in which hard inorganic particles such as gravel are bonded by welding of heat-fusible rubber particles. 2. A method for producing a sidewalk paving block, which comprises mixing hot-melting rubber particles and hard inorganic particles such as gravel heated to a temperature higher than the melting temperature of the hot-melting rubber particles and press-molding them. 3. The method for manufacturing a sidewalk paving block according to claim 2, wherein the heat-fusible rubber particles are preheated.