| 摘要 |
PURPOSE: A structure of a support for a guide rail is provided to easily reduce an amount of a shock caused by a vehicle collision by rotating itself. CONSTITUTION: A second support(3) is arranged on an upper part of a first support(2) and a horizontal stand is fixed on the second support in parallel with the ground(1). The second support is combined to the upper part of the first support to be rotatable through a shaft(5). At the same time, a protrusion(2) is protruded on both side faces of the first support. A circular arc shape long hole(3a) is formed on both sides of a lower end of the second support. The protrusion is inserted in the long hole curved along a radius between the protrusion and shaft. Then, a damage portion(3b) is formed in a wave shape along an inner face of the long hole to be damaged by a shock of a vehicle.
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