Venetian blind draw cord handle - has serrated stop roller in recess in inwardly serrated tapering oval half shells

摘要

Two identical half handle shells (1), of elongated oval shape, are joined together to make a pull for the cord of a venetian blind. The hollow space inside has a recess for movement of the arresting roller (2), which is serrated so as to engage similar serration inside the shank walling. The interior tapers at both ends to a mouthpiece for cord passage. The arresting roller presses the cord to one side, and is itself pressed against the inside shell walling. If the pull is pushed downwards, the roller rolls into the mouthpiece, and arrests the cord. For free pull movement up or down, it is held by a pendulum switch (3).