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US 10,562,587 B2Granted
Cycle crankset with self-positioned floating chainring
AssigneeC3B
InventorJacques Cerdan
Life of this patent
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Abstract
A cycle crankset, comprising independent cranks articulated around a crank axis and each having a pedal axis, a cam pivotably mounted about the crank axis, and a chainring assembly pivotably mounted about the cam about an axis parallel to the crank axis, the cranks being connected to the chainring assembly via connecting rods, the articulation point between each of the cranks and one of the connecting rods being located on the portion of the crank opposite the pedal axis relative to the crank axis.
Claims8
A cycle crankset for a cycle, comprising:
- independent cranks articulated around a crank axis and each with a pedal axis,
- a cam pivotably mounted about said crank axis, and
- a chainring assembly pivotably mounted about the cam, about an axis parallel to the crank axis,
- the independent cranks being connected at articulation points to the chainring assembly via connecting rods,
- each articulation point between one of said independent cranks and one of said connecting rods being located on a portion of the independent crank opposite the pedal axis relative to the crank axis, wherein the articulation points that are manipulated by the left crank arm assembly are on the opposite side of the crank axis from the left pedal axis, and the articulation points that are manipulated by the right crank arm assembly are on the opposite side of the crank axis from the right pedal axis.
2 more elements
Dependencies are inferred from the claim text.