| 摘要 |
The invention relates to a supporting device for supporting substrates in a component placement machine including a housing ( 1 ), a piston rod ( 5 ) arranged in the housing so as to be movable in its longitudinal direction in the housing ( 1 ) by pressurized fluid and having one end extending outside the housing ( 1 ) and a locking mechanism ( 7 to 9 ) by which displacement of the piston rod ( 5 ) in its longitudinal direction can be prevented. The locking mechanism ( 7 to 9 ) includes clamp ( 8 ) movable by an adjuster ( 7 ) in a direction transverse to the longitudinal direction of the piston rod ( 5 ) between an active position for blocking the piston rod ( 5 ) and an idle position in which the piston rod ( 5 ) is movable in its longitudinal direction. The clamp ( 8 ) have been arranged in the housing ( 1 ) so that in the active position said clamping means ( 8 ) directly engage the piston rod ( 5 ).
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