| 摘要 |
<p>The present invention concerns a telescopic cylinder (1) including an outer cylinder tube (2) in which is coaxially arranged a number of displacing inner cylinder pipes (3, 4), a piston rod (5) and at least one ball catch (7), where the said piston rod (5) is arranged displacing and internally of the innermost of the said inner cylinder pipe (4), and where ball catch (7) includes at least one locking ball (8), at least one ball seat (9) and at least one compression spring (10), where the said ball catch (7) is arranged with at least two locking positions, a first locking position, where the said locking ball (8) engages the ball seat (9) and a second locking position, where the locking ball (8) is released from the said ball seat (9) and engages a surrounding recess (11). <IMAGE></p> |
