Patent ID: 7530290
Filing Date: 2009-05-12
Classification: B62M,Y10T

Abstract:
1. A crank for bicycles comprising: an elongate shank including a chamber formed therein and defined by an upper wall and a lower wall, and said shank including an orifice formed therein, and said shank including at least one tooth extended into said orifice of said shank, a gasket including a plurality of slots formed in an outer peripheral portion of said gasket, some of said slots being faced downwardly, and the other slots faced upwardly for increasing a resilience of said gasket and for allowing said gasket to be engaged through said orifice of said shank and to be engaged into said chamber of said shank, and said gasket being engaged between said upper and said lower walls of said shank, said gasket including a bore formed therein and including at least one tooth extended into said bore of said gasket and aligned with said at least one tooth of said shank, a fastener being engaged through said orifice of said shank and engaged through said bore of said gasket and including at least one tooth engaged with said at least one tooth of said shank and said gasket.