| 摘要 |
PURPOSE: A Braille block which does not slip is provided to protect a pedestrian from slipping, and to extend the service life of the block by improving adhesive force and stress. CONSTITUTION: A Braille block which does not slip is composed as follows. Concave parts(1) and convex parts(2) are formed on the top surface of the Braille block. The concave parts and the convex parts are continuously symmetrical. The Braille block safely protects a pedestrian from slipping even if the pedestrian walks in various directions. |
