US 12,329,062 B2
Lawn mower with pivotal rocker arm assembly
Jeffrey Zeiler, Brookfield, WI (US); Todd Johnson, Wauwatosa, WI (US); Christopher Krajewski, West Allis, WI (US); Nicholas Zeidler, Brookfield, WI (US); Jacob Schmalz, Milwaukee, WI (US); Bryan Keith Dandridge, Waukesha, WI (US); Ryan Jaskowiak, Eagle, WI (US); Matthew Steven Zurawski, Whitewater, WI (US); and Ryan Hahn, Elm Grove, WI (US)
Assigned to Briggs & Stratton, LLC, Wauwatosa, WI (US)
Filed by BRIGGS & STRATTON, LLC, Wauwatosa, WI (US)
Filed on Jun. 1, 2023, as Appl. No. 18/204,699.
Application 18/204,699 is a continuation of application No. 16/639,104, granted, now 11,672,201, previously published as PCT/IB2018/056156, filed on Aug. 16, 2018.
Claims priority of provisional application 62/653,888, filed on Apr. 6, 2018.
Claims priority of provisional application 62/546,284, filed on Aug. 16, 2017.
Prior Publication US 2023/0301231 A1, Sep. 28, 2023
Int. Cl. A01D 34/00 (2006.01); A01D 34/66 (2006.01); A01D 34/71 (2006.01); A01D 34/78 (2006.01); A01D 34/82 (2006.01); A01D 67/04 (2006.01); B60G 15/06 (2006.01); B60K 1/02 (2006.01); B60K 7/00 (2006.01); B60K 35/00 (2006.01); B60N 2/015 (2006.01); B62D 1/04 (2006.01); B62D 15/02 (2006.01); B62D 21/02 (2006.01); B62D 21/11 (2006.01); E01H 5/06 (2006.01); A01D 101/00 (2006.01); B60K 35/10 (2024.01); B60K 35/22 (2024.01)
CPC A01D 34/66 (2013.01) [A01D 34/008 (2013.01); A01D 34/71 (2013.01); A01D 34/78 (2013.01); A01D 34/824 (2013.01); A01D 67/04 (2013.01); B60G 15/062 (2013.01); B60G 15/067 (2013.01); B60K 1/02 (2013.01); B60K 7/0007 (2013.01); B60K 35/00 (2013.01); B60N 2/015 (2013.01); B62D 1/046 (2013.01); B62D 15/021 (2013.01); B62D 21/02 (2013.01); B62D 21/11 (2013.01); E01H 5/061 (2013.01); A01D 2101/00 (2013.01); B60K 35/10 (2024.01); B60K 35/22 (2024.01); B60K 2360/143 (2024.01)] 20 Claims
OG exemplary drawing
 
1. A lawn mower comprising:
a main chassis, the main chassis having a first pivot joint on a first side and a second pivot joint on a second side opposite the first side;
a first rocker arm having a first end portion and a second end portion, the first rocker arm pivotally coupled to the first pivot joint of the main chassis at a location between the first end portion and the second end portion of the first rocker arm;
a second rocker arm having a first end portion and a second end portion, the second rocker arm pivotally coupled to the second pivot joint of the main chassis at a location between the first end portion and the second end portion of the second rocker arm;
a first caster wheel assembly rotatably coupled to the first end portion of the first rocker arm;
a second caster wheel assembly rotatably coupled to the first end portion of the second rocker arm;
a first drive wheel rotatably coupled to the second end portion of the first rocker arm; and
a second drive wheel rotatably coupled to the second end portion of the second rocker arm.