FALLSICHERUNG FÜR LINEARANTRIEBE

摘要

PCT No. PCT/SE93/00842 Sec. 371 Date Apr. 10, 1996 Sec. 102(e) Date Apr. 10, 1996 PCT Filed Oct. 15, 1993 PCT Pub. No. WO95/10716 PCT Pub. Date Apr. 20, 1995A drop protection device for actuator devices of the type which are intended to raise and lower a load. The drop protection device includes a sleeve shaped member which, during normal operation of the actuator rotates along with a threaded spindle of the actuator. During rapid acceleration of the spindle, such as that experienced when the drive gear breaks down and the spindle rotates freely so as to cause the load to uncontrollably drop, the sleeve shaped member will, as a result of its mass inertia, be brought into contact with a stop device for preventing further rotation of the spindle. Thus, the drop protection device prevents the load from being damaged or causing damage to peripheral equipment or individuals.