| 摘要 |
PURPOSE: A safety foothold is provided to prevent an accident generated by the widen gap between an electromotive vehicle and a platform by installing a safety device on an upper end of the platform facing an entrance of the electromotive vehicle. CONSTITUTION: After an electromotive vehicle stops, an air compressor(10) as a main power source is operated before an entrance is opened. Plural air cylinders(30) receiving the air supplied from the air compressor are transmitted to a main power transmission shaft(40) reciprocating a certain distance by the air cylinder. A clearance regulation unit(60) is forwarded to a front side by the main power transmission shaft. The power of the air cylinder is transmitted to a power transmission shaft(50), and the power of the power transmission shaft(50) is transmitted to the main power transmission shaft. By regularly moving a reciprocation distance of a foothold, the main power transmission shaft and the clearance regulation unit moves simultaneously at the same distance. In addition, a safety pin(62) is combined with a main body(80) so that a foothold main body(80) moves toward a pointer 'A' through a cylindrical operation foothold connection shaft(72). |
