E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
E05B 1/00 (2006.01)
Patent
CA 2140994
A mechanism for returning a lever handle of a door lock includes a torsion spring having two end legs and provided around a driving shaft which is connected to a lever handle and which extends through an outer sleeve. A spring engaging member projects from the driving shaft to act on and turn one of the legs. A stopping member projects from an inner periphery of the outer sleeve to act on the other leg of the torsion spring, whereby a returning force can be generated when the driving is rotated via the lever handle.
Oyen Wiggs Green & Mutala Llp
Tong-Lung Metal Industry Co. Ltd.
LandOfFree
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