| 摘要 |
PURPOSE:To make it possible for the handicapped to recognize the surface of a road by way of changes in their tactile sense by inserting a leg of an expansion plus into a boring hole and forming the surface of a buried type braille rivet structure whose leg and top board are integrated as projected or recessed. CONSTITUTION:A top board structure 2 and a leg 3 of a buried type braille rivet structure main body are bonded in one piece. The tip 4 of the leg is designed to form an expansion plug-shaped structure made of elasticity holding metal-made spring pin in such a fashion that it may be fixed with a base. Then, the base which has passed into a cylinder-shaped opening of the tip of the leg 3, is pressure-bonded. This construction make it possible to eliminate a hindrance to walking of every pedestrian and help visually handicapped persons to recognize the surface areas of its upper part structure by way of changes in their tactile sense. |
