Venetian blind winch flexible coupling joint - has elastic flexible shaft with sleeves for coupling to input shaft and control rod

摘要

The joint couples the winch actuating a venetian blind winding mechanism and the control rod. It is formed by an elastic flexible shaft (21), which can have sleeves (23, 22) at the ends coupling it to the winch input shaft and the control rod. It can run in a self-aligning bearing (16) with a spherical external surface (18) accommodated in a mounting in the winding mechanism housing. The shaft can be formed by cylindrical steel spirals, wound one on the other in alternating directions.