KR200248452Y1 - Raised letters block for blind man - Google Patents

Abstract

The present invention relates to a braille block for the visually impaired using rubber and waste materials. More specifically, the upper layer and the reclaimed rubber of natural or synthetic rubber, which can replace conventional braille blocks of concrete, stone, ceramic, and rubber And it relates to a braille block for the visually impaired having a lower layer formed integrally with the filling of the waste material.

Description

Braille blocks for blind people {Raised letters block for blind man}

The present invention relates to a braille block for the visually impaired using rubber and waste materials. More specifically, the upper layer and the reclaimed rubber of natural or synthetic rubber, which can replace conventional braille blocks of concrete, stone, ceramic, and rubber And it relates to a braille block for the visually impaired having a lower layer formed integrally with the filling of the waste material.

Conventional Braille blocks for the visually impaired are made of concrete, stone, ceramic, and rubber. They are embedded in the ground or on the floor of the building or bonded to the surface to inform the visually impaired.

Conventional braille blocks for the blind have the following technical problems.

In the case of concrete braille blocks, the protrusions are easily worn or broken, and thus the strength of the protrusions is low. Therefore, there is a high possibility that the braille block will lose its function as a braille block over time. There is a problem that hurts the appearance of the city.

Natural stone and ceramic-based products are superior in strength to the above concrete products, but may be broken due to local impact or bonding to the lower layer, and may not have a difference in texture from surrounding flooring materials, generally stone or concrete braille blocks. The discrimination of people with disabilities is reduced.

Rubber Braille is a product that combines natural or synthetic rubber with concrete or stone, and the surface layer has a clear difference between the surrounding floor material and the texture. There is a limit to use, and there is a possibility of leaving the rubber part due to the cracking or breaking of the concrete and stone parts.

In the case of products made of pure rubber material, the product is formed by combining waste tire pulverized powder or rubber pulverized powder with various binders including urethane resin series. There is a disadvantage that the crushing phenomenon occurs, and also the appearance can be damaged by discoloration and fading of the color, and because the whole main material has the properties of rubber, the product may bend and warp due to thermal expansion.

The present invention is devised to solve the problems of the prior art as described above, the object of the present invention is as follows.

1. Breakage of protrusion of braille block, discoloration and discoloration of the braille block caused by durability problems of existing concrete products, breakage of stone and ceramic-based braille blocks, and deterioration of detection of visually impaired people, combined with rubber, stone or concrete To solve the economic problems of the old products, the warpage phenomenon, discoloration and fading problems of the waste tire powder and general rubber powder products.

2. It is made of natural or synthetic rubber product that has strong resistance to UV rays and has excellent weather fastness and durability in order to solve the problem of discoloration and fading generated in the surface layer of existing products, and prevents discoloration and fading over time. The purpose of this study is to improve the sensitivity of the visually impaired by giving the difference between the flooring and the texture of the surrounding block. Also, various pigments can be added, which contributes to the improvement of the urban environment.

3. The products combined with rubber, stone or concrete have complicated manufacturing process and high raw material price. Therefore, the lower part of the lower layer is used to make waste concrete, waste stone, waste aggregate, waste ascon, waste fiber, waste wood, waste in order to secure price competitiveness. It forms a filling part using waste such as plastic, waste vinyl, and slurry generated in sewage treatment process, and reduces the price of the product by forming the outside into a form of wrapping with recycled rubber or recycled rubber powder, and consists of pure rubber products. To increase the weight to meet the appropriate weight required for civil engineering products, and to prevent distortion or warpage due to thermal expansion.

4. Raw materials can be extracted and used from waste tires that are becoming an environmental problem, and by using waste materials that cause environmental problems, we want to contribute to saving budget by securing price competitiveness and preventing environmental pollution by recycling resources.

1 is a side cross-sectional view of a braille block according to an embodiment of the present invention.

2 is a side cross-sectional view of a braille block according to another embodiment of the present invention.

** Description of Drawing Symbols **

10 ... surface layer 20 ... recycled rubber layer

30 ... fill 40 ... protrusion

The braille block for the blind of the present invention is a filling unit; A recycled rubber layer surrounding the filling unit; And a surface layer of natural or synthetic rubber having protrusions laminated on the regenerated rubber layer.

In the braille block of the present invention, the filling part of the filling part is not limited, but the waste concrete, waste stone, waste aggregate, waste ascone, waste fiber, waste wood, waste plastic, waste vinyl, and slurries generated during sewage treatment It is preferably composed of one or more materials selected from the group consisting of.

The present invention will be described in detail with reference to the accompanying drawings.

The surface layer 10 of the braille block of the present invention, i.e., the surface layer exposed to the road surface after the construction of the braille block, has excellent durability and weatherfastness, and adds a conventional UV stabilizer, organic / inorganic pigment, etc. to have a function of preventing discoloration and fading. Use natural or synthetic rubber sheeted.

The lower part buried in the bottom forms a filling part 30 using waste inside, waste concrete, waste stone, waste aggregate, waste ascon, waste fiber, waste wood, waste plastic, waste vinyl, waste plastic Waste to be incinerated or buried, such as slurry, may be molded to have a certain shape, or may be crushed to a certain size to form a certain amount. In addition, the reclaimed rubber layer 20 using the reclaimed rubber or the reclaimed rubber powder is molded in a form that integrally or partially surrounds the outside of the filling part 30.

The regenerated rubber layer 20 is used by sheeting by adding sulfur or the like to form a durable and optimal molding conditions for the scrap rubber extracted from waste tires or other rubber molded product manufacturing process.

The manufacturing method of the braille block for the blind of the present invention is as follows.

Lay a recycled rubber sheet prepared in a mold (mold) of a certain type required in the braille block for the visually impaired, and cut a sheet with a knife or the like to form a groove on the sheet to laminate a recycled rubber sheet to secure a space for a filling part. Fill the space of the rubber sheet with waste fillers or rubble, which are formed in a certain shape, and then pile up the recycled rubber sheet, and then construct the top layer with natural or synthetic rubber products, and then apply it at a constant temperature and pressure by using a press. Rubber, natural or synthetic rubber is molded through a vulcanization process.

Hereinafter, the braille block of the present invention will be described with reference to Examples. However, the following examples are only intended to illustrate the present invention and are not intended to limit the protection scope of the present invention. The vulcanization process and the mold process used in the following manufacturing process can use well-known methods.

Example 1

A recycled rubber sheet prepared in a mold of a certain type is laid, and a recycled rubber sheet is formed by cutting a knife on the sheet to form a groove into which a filling part is to be inserted. After laminating the rubber sheet, the uppermost layer was composed of a conventional synthetic rubber product, and then a braille block for the visually impaired was formed at 150 ° C. and 14KG using a press through a conventional vulcanization process.

Example 2

A recycled rubber sheet prepared in a mold of a certain type is laid, and a recycled rubber sheet is formed by cutting a knife on the sheet to form a groove into which a filling part is to be filled, and filling the waste plastic molded in a predetermined shape into the space of the recycled rubber sheet, After forming a conventional natural rubber product, a linear block for the visually impaired was molded at 140 ° C. and 15KG using a press using a conventional vulcanization process.

As can be seen from the above, the braille block for the visually-impaired subject of the present invention uses waste materials in the lower part of the lower part to lower the price of the product, prevent distortion and warpage due to thermal expansion, and waste tires, which are becoming environmental problems. By using recycled rubber and using waste materials that cause environmental problems, it can secure price competitiveness, prevent environmental pollution by recycling resources, prevent discoloration and fading of the surface layer, and surround the braille block The difference in flooring and texture can improve the sensitivity of the visually impaired. Also, various pigments can be added, which contributes to the improvement of the urban environment.

Claims (3)

Filling part; A recycled rubber layer surrounding the filling unit; And Braille block for the visually impaired, comprising a surface layer of natural or synthetic rubber having protrusions stacked on the recycled rubber layer. The method of claim 1, wherein the filling unit is made of one or more materials selected from the group consisting of waste concrete, waste stone, waste aggregate, waste ascon, waste fiber, waste wood, waste plastic, waste vinyl, and slurry generated during sewage treatment. Braille block for the blind, characterized in that the configuration. The braille block of claim 1, wherein the filling part is integrally or partially wrapped with recycled rubber.