US 11,884,364 B2
Rear derailleur with one-piece chain cage
Kenneth K. Anderson, Irvine, CA (US); and Jonathan Ziegler, Wofford Heights, CA (US)
Assigned to The Cycle Group, Anaheim, CA (US)
Filed by The Cycle Group, Anaheim, CA (US)
Filed on Nov. 10, 2021, as Appl. No. 17/523,819.
Prior Publication US 2023/0147911 A1, May 11, 2023
Int. Cl. B62M 9/126 (2010.01); B62M 9/1242 (2010.01)
CPC B62M 9/126 (2013.01) [B62M 9/1242 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A rear derailleur assembly for mounting to a bicycle, wherein the bicycle includes a frame, comprising:
an upper body portion configured to operationally engage the rear derailleur assembly to the frame;
a controller portion pivotally connected to the upper body;
a lower body portion pivotally connected to the upper body and pivotally connected to the controller portion; and
a chain cage assembly;
wherein the chain cage assembly includes at least two pulleys configured to engage a chain of the bicycle, and a one-piece chain cage configured to retain each pulley at a particular fixed position;
wherein each pulley is rotatable relative to the one-piece chain cage at the particular fixed position of the pulley; and
wherein the lower body portion is operationally connected to the one-piece chain cage and configured to allow the one-piece chain cage to pivot relative to the lower body portion; and wherein the one-piece chain cage includes at least one hollow.