US 12,264,733 B2
Centrifugal anti-backlash scissor gear
Daniel Kelly, Columbus, IN (US); and Thomas Levard, Milford, OH (US)
Assigned to Cummins Inc., Columbus, IN (US)
Filed by Cummins Inc., Columbus, IN (US)
Filed on Mar. 28, 2023, as Appl. No. 18/127,153.
Application 18/127,153 is a continuation of application No. PCT/US2021/071544, filed on Sep. 22, 2021.
Claims priority of provisional application 63/094,552, filed on Oct. 21, 2020.
Prior Publication US 2023/0228324 A1, Jul. 20, 2023
Int. Cl. F16H 55/18 (2006.01); F16H 57/12 (2006.01)
CPC F16H 55/18 (2013.01) [F16H 57/12 (2013.01); F16H 2057/126 (2013.01)] 19 Claims
OG exemplary drawing
 
9. A scissor gear assembly, comprising:
a main gear having a plurality of main gear teeth and a plurality of main holes;
a secondary gear having a plurality of secondary gear teeth and a plurality of secondary gear pins;
a plurality of weights assembled with the main gear and the secondary gear, each of the plurality of weights operably connected to the main gear and the secondary gear wherein each of the plurality of weights define a pivot pin sized for insertion into one of the main holes to link each of the plurality of weights to the main gear, each of the plurality of weights having a weight hole that is positioned adjacent the pivot pin, one of the weight holes engaged with one of the plurality of secondary gear pins to operatively connect each of the plurality of weights to the secondary gear;
wherein the plurality of main gear teeth are aligned with the plurality of the secondary gear teeth when the main gear is in a resting condition; and
wherein rotation of the main gear in a first direction forces the plurality of weights to rotate, and rotation of the plurality of weights forces the secondary gear to rotate in an opposite direction as the first direction of the main gear to thereby rotate the plurality of secondary gear teeth apart from the plurality of main gear teeth.