| 摘要 |
PROBLEM TO BE SOLVED: To provide a saddle of a bicycle, vertically movable in response to a travel state of the bicycle so that the saddle can be fixed by lowering down to a position where both feet reach the ground, in synchronism with deceleration of the bicycle when decelerating by applying a brake for stopping and avoiding danger, when the bicycle travels. SOLUTION: (1) The saddle 2 is arranged in an upper part of a sliding shaft 1, and a sphere 5 is arranged in a lower part of a sliding shaft 4, and the sliding shaft 1 and the sliding shaft 4 are connected by a variable screw 6. (2) A semicircular pan 1 is arranged upward in an upper part of a coil-shaped spring 10, and a sliding shaft 12 is arranged in a lower part. The (2) and the (1) are successively inserted into a hollow shaft 13. COPYRIGHT: (C)2011,JPO&INPIT
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