Exmark Manufacturing Company, Inc.

Nicholas R Hiser

Garry W Busboom

C Mark Atterbury

An adjustable suspension system for an operator platform that is pivotally attached at a pivot axis to a chassis of a turf maintenance vehicle. The system may include a suspension apparatus selectively attachable either to a support area of the chassis, or to the platform such that the apparatus is located between the support area and the platform. The suspension apparatus may be attachable at either a first location or a second location, wherein the suspension apparatus is spaced-apart from the pivot axis: by a first distance when in the first location; and by a second distance, different than the first distance, when in the second location. The suspension apparatus may include a support member and resilient element(s) attached to the support member.

Operator platform suspension system for turf maintenance vehicle

An isolation system for use in damping and isolating low frequency oscillations and shock loads between two members. An exemplary application is a seat isolation system for use with a vehicle such as a lawn mower. The seat isolation system may include two or more isolators interposed between a chassis of the vehicle, and a seat (e.g., operator's seat). The isolators may permit attenuation of shock or low frequency oscillation inputs via damping and isolation in both vertical and horizontal (fore-and-aft and side-to-side) directions. In some embodiments, the isolators include an elastomeric element that provides the seat with six degrees of freedom.

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Seward, NE, United States of America

Nicholas R Hiser