Patent ID: 7918305
Filing Date: 2011-04-05
Classification: A01D,B62D

Abstract:
1. A vehicle comprising: a frame; a left front wheel assembly and a right front wheel assembly, wherein each of the left front wheel assembly and right front wheel assembly comprises: a front support arm pivotally coupled to the frame; and a ground-engaging front wheel rotatably coupled to the front support arm; a left rear wheel assembly and a right rear wheel assembly, wherein each of the left rear wheel assembly and right rear wheel assembly comprises: a rear support arm pivotally coupled to the frame; and a ground-engaging rear wheel rotatably coupled to the rear support arm; a front linkage assembly connecting the left front wheel assembly to the right front wheel assembly; a left wheel tie rod comprising: a forward end coupled to a bell crank of the front support arm of the left front wheel assembly; and an aft end coupled to a rear lever arm of the rear support arm of the left rear wheel assembly; a right wheel tie rod comprising: a forward end coupled to a bell crank of the front support arm of the right front wheel assembly; and an aft end coupled to a rear lever arm of the rear support arm of the right rear wheel assembly; and a steering actuator attached to the frame and to the front linkage assembly, the actuator responsive to manipulation of a steering input device.