| 摘要 |
The invention relates to a piston and cylinder unit in which there are means for precluding twisting of the piston rod in relation to the cylinder. A part of the piston rod outside the cylinder is connected with a support member which surrounds a major part of the circumference of the cylinder in every position of the piston rod. On both sides of the median plane containing the longitudinal axis of the cylinder there are respective support section having sliding and support surfaces. These sliding and support surfaces face in opposite directions about the axis of the cylinder and each run on a flat runner surface, also extending in the length direction of the cylinder, on a base which is not able to turn or otherwise move in relation to the cylinder. |
