| 摘要 |
A fluid pressure cylinder can apply a fastening force to an axially movable reciprocating rod. A reciprocating rod 13 is mounted in a case main body 10 so as to be reciprocable in a forward direction and a backward direction, and two lock units 16 a and 16 b are incorporated in the case main body 10 , and the lock units 16 a and 16 b include: lock sleeves 18 a and 18 b mounted axially movably and having taper surfaces 22 a and 22 b; and retainers 19 a and 19 b holding steel balls 21 a and 21 b that are fitted in the reciprocating rod 13 axially movably and engaged with the taper surfaces. A fastening cylinder 41 that contains a fastening rod so as to be reciprocable in a fastening direction and a fastening release direction is attached to the case main body 10 , a fastening surface 44 contacting with the lock sleeves 18 a and 18 b being formed in the fastening rod, and the reciprocating rod 13 is fastened by the two lock units 16 a and 16 b.
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