Windows locker

thingiverse

This small assembly keeps a window open with a closure type handle made of PVC espagnolette. The 7x7mm maneuvering shaft and screw fixing are set between 43 mm axles. The idea behind this system is simple: move the handle block to slide the opening along the ribbon, then lock it again to hold the opening in place. A quarter turn rotation of the handle locks or unblocks the ribbon due to an eccentric, which slides a bolt into position.