Axle cap module for winding shaft of building opening shading device such as roller shutter, has tension spring arranged for switching piston against interior of sleeve between different axial positions by operator

摘要

The module has a front side that is able to be inserted into a winding shaft, a flexible inner sleeve (23), and an extension piston (22) that is axially displaceable and is able to be locked in different axial positions. The piston is able to be locked in the interior of the sleeve. A support unit (3) is arranged at the front side, and a set of integrated switching mechanisms such as tension spring (24), is arranged for switching the piston against the interior of the sleeve between different axial positions by an operator. An independent claim is also included for a building opening shading device.