| 摘要 |
PROBLEM TO BE SOLVED: To permanently exhibit the specified cushioning effect by permanently generating predetermined damping force. SOLUTION: A leg part 6a projecting on the inner periphery of the lower end is faced to a bottom part 5a through a seal 12 by fastening a fastening bolt 9 to which an oil hole rod 6 arranged so as to be fixed on the bottom part 5a of an axle side tube 5 is guided from the lower end of the axle side tube 5, and a collar part 6b projecting on the outer periphery of the lower end is brought into contact with the bottom part 5a.
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