Trailed mower with stability control
AssigneeCNH Industrial America LLC
InventorJason Shonk
Life of this patent
Estimating the term…
Abstract
A lift-suspended mower for an agricultural vehicle. The lift-suspended mower includes a frame, one or more cutting devices that are movably mounted with respect to the frame for cutting crop material on a ground surface, a first wheel mounted to the frame for contacting the ground surface and supporting the frame above the ground surface, and a first suspension system interconnecting the first wheel to the frame. The first suspension system includes (i) an actuator that is selectively actuable to either raise or lower to a predetermined degree the first wheel relative to the frame or vice versa, and (ii) a device for permitting the first wheel to move toward the frame when a pressure exerted by the first wheel onto the ground surface increases, wherein the device operates independently of the actuator.
Claims13
A lift-suspended mower for an agricultural vehicle, said lift-suspended mower comprising:
- a frame;
- one or more cutting devices that are movably mounted with respect to said frame for cutting crop material on a ground surface;
- a first wheel mounted to said frame for contacting the ground surface and supporting the frame above the ground surface;
- and
- a first suspension system interconnecting the first wheel to the frame, the first suspension system including (i) an actuator that is selectively actuable to either raise or lower to a predetermined degree the first wheel relative to the frame or vice versa, and (ii) means for permitting movement of the first wheel toward the frame when a pressure exerted by the first wheel onto the ground surface increases, said means operating independently of the actuator,
- wherein the means comprises a compression spring that is configured to compress when pressure exerted by the first wheel onto the ground surface increases, and without causing actuation of the actuator,
- wherein the first wheel is connected to a wheel hub link, and the compression spring is configured to bias the wheel hub link away from a piston of the actuator,
- wherein the compression spring bears on a collar of the wheel hub link and a collar of either the piston or a rod that is connected to the piston.
A lift-suspended mower for an agricultural vehicle, said lift-suspended mower comprising:
- a frame;
- one or more cutting devices that are movably mounted with respect to said frame for cutting crop material on a ground surface;
- a first wheel mounted to said frame for contacting the ground surface and supporting the frame above the ground surface;
- and
- a first suspension system interconnecting the first wheel to the frame, the first suspension system including (i) an actuator that is selectively actuable to either raise or lower to a predetermined degree the first wheel relative to the frame or vice versa, and (ii) means for permitting movement of the first wheel toward the frame when a pressure exerted by the first wheel onto the ground surface increases, said means operating independently of the actuator,
- wherein the means comprises a compression spring that is configured to compress when pressure exerted by the first wheel onto the ground surface increases, and without causing actuation of the actuator,
- wherein the compression spring is mounted between a housing of the actuator and the frame of the mower.
Dependencies are inferred from the claim text.