Zero-turn radius lawnmower with suspension system

US9849776B2 · kind B2 · utility

Assignee

• Briggs & Stratton, LLC · US

Inventors

• Mark J. Melone · Rome, US
• James F. Marshall · Port St. Lucie, US
• Richard Smith · Morrisville, US
• Mark Lynch · Munnsville, US
• Travis Rasch · Hartford, US
• Erik R. Slegelis · Port Washington, US
• Steven J. Weber · Germantown, US
• Denis Oswald · Hartford, US

Key dates

• Filing date: Aug 2, 2016
• Grant date: Dec 26, 2017
• Expiry date: Aug 2, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60Y2200/223
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Some embodiments of the invention provide a suspension system coupled to a main frame of ride-on equipment including at least one subframe coupled to the main frame with a pivot including pivot axis. Some embodiments include at least one transaxle assembly supported on the at least one subframe coupled to a drive wheel, and a power source supported on the main frame coupled to the at least one transaxle assembly. Some embodiments include driven pulleys, idler pulleys and backside idler pulleys supported by the at least one subframe coupled to a power source not supported by the at least one subframe. Some embodiments include two independently suspended subframes, each independently pivotable on the pivot axis with respect to each other and the main frame.