US 11,858,489 B2
Machine suspension system
Erik R. Slegelis, Port Washington, WI (US); and Travis Rasch, Hustisford, WI (US)
Assigned to Briggs & Stratton, LLC, Wauwatosa, WI (US)
Filed by Briggs & Stratton, LLC, Wauwatosa, WI (US)
Filed on Feb. 10, 2023, as Appl. No. 18/108,072.
Application 18/108,072 is a continuation of application No. 17/677,689, filed on Feb. 22, 2022, granted, now 11,603,078.
Application 17/677,689 is a continuation of application No. 16/596,207, filed on Oct. 8, 2019, granted, now 11,267,443.
Application 16/596,207 is a continuation of application No. 16/018,020, filed on Jun. 25, 2018, granted, now 10,464,537.
Application 16/018,020 is a continuation of application No. 15/150,485, filed on May 10, 2016, granted, now 10,005,437.
Claims priority of provisional application 62/131,738, filed on Mar. 11, 2015.
Prior Publication US 2023/0192041 A1, Jun. 22, 2023
Int. Cl. A01D 101/00 (2006.01); B60T 7/10 (2006.01); F02B 61/00 (2006.01); A01D 34/64 (2006.01); B60T 1/06 (2006.01); B60T 11/04 (2006.01); F02B 75/00 (2006.01); F16D 125/60 (2012.01)
CPC B60T 7/10 (2013.01) [A01D 34/64 (2013.01); B60T 1/062 (2013.01); B60T 7/102 (2013.01); B60T 11/046 (2013.01); F02B 61/00 (2013.01); F02B 75/007 (2013.01); A01D 2101/00 (2013.01); F16D 2125/60 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A riding lawn mower, comprising:
a chassis including a longitudinal support beam;
a drive wheel;
an electric motor coupled to the drive wheel;
a suspended subframe including a longitudinal subframe beam pivotally coupled to the longitudinal support beam about a pivot axis, wherein the longitudinal subframe beam at least partially supports the electric motor; and
a suspension device coupled between the longitudinal subframe beam and the longitudinal support beam, wherein the drive wheel and the electric motor are configured to translate relative to the chassis via the pivotal coupling between the longitudinal support beam and the longitudinal subframe beam.