| 摘要 |
PCT No. PCT/SE84/00151 Sec. 371 Date Dec. 21, 1984 Sec. 102(e) Date Dec. 21, 1984 PCT Filed Apr. 24, 1984 PCT Pub. No. WO84/04371 PCT Pub. Date Nov. 8, 1984.An influencing arrangement with telescopically variable length, comprising an influencing member which can be actuated by the drive shaft and moved its longitudinal. The invention makes is possible to provide an arrangement which among other things is compact and has considerable stroke-length, and which consists of few complicated parts. A plurality of influencing members (2,2',22) which are disposed co-axially relative to each other and have an outer and/or inner thread element, are connected together via a plurality of rotatable, telescopically connected drive shaft devices (8, 8') with a non-circular cross-section part, whereby rotation of the main rotary drive shaft (9) in one direction of rotation causes the said influencing members (2,2'22) to be screwed out in order to extend the arrangement, and rotation of the said main rotary drive shaft in the opposite direction of the rotation causes the said influencing members to be screwed in and closed up one inside the other. |
