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US 8,376,078 B2Granted
Agricultural application machine with variable width track
AssigneeAGCO Netherlands B.V.
InventorJoris Hiddema
Life of this patent
Estimating the term…
Abstract
An agricultural application machine (10) comprising a pair of wheels (11, 12) each having an associated wheel support structure (22) is provided. Each wheel support structure is mounted to the chassis (60) by a transversely extending support shaft (29; 49) which is slidably mounted within a bearing block (50; 80). The provision of bearing blocks allows the transverse separation of the wheels to be varied with minimal sliding friction.
Claims18
An agricultural application machine comprising:
- a chassis;
- a pair of wheels each suspended from a respective wheel support structure;
- and
- a pair of transversely extending support shafts fixed relative to the chassis;
- each wheel support structure comprising a pair of spaced bearing blocks which are slidably mounted for axial displacement on the support shafts to allow for the transverse separation of the wheels to be varied;
- wherein the support shafts are configured to pass through the respective wheel support structures, such that in a narrow transverse wheel separation position the support shafts pass through the respective wheel support structures and extends laterally outside of the respective wheel support structures.
3 more elements
An agricultural application machine comprising:
- a chassis;
- a pair of wheels each suspended from a respective wheel support structure which is attached to a respective pair of transversely extending support shafts;
- a pair of actuating modules fixed to said chassis, each respective actuating module comprising two axially aligned hydraulic cylinders each hydraulic cylinder having an end wall which comprises an integrated bearing block;
- each support shaft being slidably mounted for axial displacement within a respective one of said bearing blocks to allow for the transverse separation of the wheels to be varied;
- wherein one end of each support shaft is directly connected to a piston head enclosed within a respective one of said hydraulic cylinders and which applies a force to assist in varying the transverse separation of the wheels in response to an applied hydraulic signal.
2 more elements
An agricultural application machine comprising:
- a pair of wheels each having an associated wheel support structure mounted to the chassis by a transversely extending support shaft which is slidably mounted for axial displacement within a bearing block to allow for the transverse separation of the wheels to be varied;
- wherein the support shaft is configured to pass through the respective wheel support structures, such that in a narrow transverse wheel separation position the support shaft passes through the respective wheel support structures and extends laterally outside of the respective wheel support structures;
- each wheel being mounted to a respective wheel carrier which is suspended from the associated wheel support structure by a four-bar linkage arrangement.
Dependencies are inferred from the claim text.