| 摘要 |
A regulating unit for accomplishing a linear movement includes a cylindrical frame part ( 1 ) having a cylinder part ( 11 ) and cylinder head ( 12 ), which define a piston space ( 131, 132 ), and a piston unit ( 2 ) to be moved by a pressurized medium in the piston space. The height of a first space ( 131 ), in which a piston part ( 22 ) is moveable, is bigger than the height of a piston part, the cross section area is bigger than a cross section area of a piston rod. A cross section area of a second space ( 132 ) is smaller that the cross section area of the piston part. Pressurized medium may be fed into a cavity space ( 15 ), which is between the facing surfaces of the piston part and the piston space, for moving the piston unit towards the cylinder head ( 12 ) or vice versa.
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