US Patent 7998033 Locking mechanism for a bicycle trainer

A bicycle trainer frame adapted for use with a bicycle includes a frame member having spaced apart ends. A coupler is disposed in at least one of the ends, the coupler having engaging cam elements to cause linear movement of a rod. A lever is connected to one of the cam elements wherein the cam surfaces are configured to cause linear movement for rotation of lever less than one revolution such that the rod moves from a first position to a second position, the first position being spaced apart from a component of the bicycle to allow removal of the bicycle from the frame, and the second position being sufficient to secure the bicycle to the frame.