Coupling for winding spindle of spring roller blind has two oppositely disposed guides between which selector pin can engage and disengage, wherein the guides have a ramp which effects operation of selector pin

摘要

The coupling for a winding spindle of a spring roller blind has two oppositely disposed guides between which a selector pin (14) can engage and disengage. The selector pin interacts with one of the guides during engagement of the coupling, and interacts with the opposite guide (24) during disengagement. The guides are provided with a ramp which effects the operation of the selector pin. The guides are formed in the shape of a V, wherein the ramp is associated with one of the sides of the guides.