Drive device for e.g. greenhouse screen, has nut for clamping bush which is radially protruding and housed inside bush body

摘要

The nut (15) for the clamping bush (2) protrudes in a radial direction and is housed inside a chamber in the bush body (11). The device comprises a drive shaft (1), at least one clamping bush mounted on the shaft, and at least one flexible tensile part such as a cable (26) wound around the clamping bush. This bush comprises a metallic body made from rotation symmetrical tube material, as well as a screw mechanism comprising at least one internally threaded nut, and a wire end which is screwed into the nut and clamped onto the shaft.