Zero-turn radius lawnmower with suspension system

摘要

Some embodiments of the invention provide a suspension system coupled to a main frame of ride-on equipment including a subframe coupled to the main frame with a pivot including a pivot axis. Some embodiments include a transaxle assembly supported on the subframe coupled to a drive wheel, and a power source supported on the main frame coupled to the transaxle assembly. A rider can control the transaxle assembly with a compensated control linkage assembly that can compensate for movement of the subframe. Some embodiments include driven pulleys, idler pulleys and backside idler pulleys supported by the subframe coupled to the power source not supported by the subframe. In some embodiments, the pivot axis resides between the power source and the transaxle assembly. In some embodiments, the drive wheel can be driven by an electric motor supported by the subframe and the power source can be a battery.

主权项

1. A suspension assembly coupled to a main frame of ride-on equipment, the suspension assembly comprising:
a subframe comprising a first support having a first end and a second support having a first end; a pivot coupled to the first end of the first support and the first end of the second support, the pivot configured and arranged to enable pivotal rotation of the subframe on the main frame around a pivot axis; at least one compressible suspension component including a first end coupled to the main frame and a second end coupled to the subframe; at least one transaxle assembly supported by the subframe and coupled by a belt to at least one external power source, wherein the transaxle assembly is configured and arranged to be capable of being driven by the at least one external power source; the at least one external power source positioned external to the subframe and supported by the main frame; and wherein the pivot axis is located substantially between the at least one transaxle assembly and the at least one external power source.