Patent ID: 8308391
Filing Date: 2012-11-13
Classification: B62B,F16C,Y10T

Abstract:
1. A folding mechanism usable with a foldable device, the folding mechanism comprising: a support member; a first rotatable member and a second rotatable member coaxial with and rotatably mounted to rotate relative to each other and the support member, the first rotatable member having a first gear portion, the first gear portion having a first set of gear teeth facing radially outward of the first rotatable member, and the second rotatable member having a second gear portion, the second gear portion having a second set of gear teeth facing radially inward of the second rotatable member; a third gear in driving engagement with both the first gear portion and the second gear portions so that the first rotatable member and the second rotatable member rotate relative to each other in geared coordination, wherein a first pitch diameter of the first gear portion is sized to rotate the first rotatable member through a first angle of rotation from a folded position to an unfolded position of a foldable device frame, and wherein a second pitch diameter for the second gear portion is sized to rotate the second rotatable member through a second angle of rotation from the folded position to the unfolded position of the foldable device frame, with the first and second angles of rotation not being of the same magnitude.