| 摘要 |
PCT No. PCT/SE81/00261 Sec. 371 Date May 17, 1982 Sec. 102(e) Date May 17, 1982 PCT Filed Sep. 14, 1981 PCT Pub. No. WO82/00973 PCT Pub. Date Apr. 1, 1982.A force amplifying displacement device for displacement of an object (5) a predetermined distance relative to a frame (2) or the like, wherein a first, longer part of the displacement movement requires a relatively minor force, while a second, shorter part of the movement requires a substantially greater force. The device comprises a lever mechanism (13) active between the frame (2) and a power transmission rod (17). An operating unit (9), e.g. consisting of a pressurized fluid cylinder (10), piston (11) and piston rod (12), first operates directly between the object (5) and the frame (2,22) and, thereafter, by sensing the end portion (28) of the power transmission rod (7), by way of the lever mechanism (13), so that a strongly amplified force is applied to the power transmission rod (7) and the object (5). |
