| 摘要 |
PURPOSE: A metallic braille block for the blind is provided to reduce a construction cost by having a braille block of excellent durability despite a thin size installed directly without taking away a bottom. CONSTITUTION: A braille block(10) is placed on the bottom having installation holes(13,23) and screws are fixed into the holes to fix the braille block. Without hanging sills due to ambient slant faces(12), the blind are prevented from falling. Furthermore, the blind are prevented from slippage via recessed grooves(11a) formed on protruded points and lines(11). According to the direct installation of the braille block on the bottom, a complex working process is eliminated.
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