초록 ▼

A self steering railway truck, especially a powered locomotive type, provides limited freedom for axle steering motion in the truck frame with a separate linkage of parallel rods and a steering beam for transmitting traction and braking forces to the truck frame. The linkages of two end axles are in

A self steering railway truck, especially a powered locomotive type, provides limited freedom for axle steering motion in the truck frame with a separate linkage of parallel rods and a steering beam for transmitting traction and braking forces to the truck frame. The linkages of two end axles are interconnected for equal and opposite motion to maintain stability and leave room for maintaining traction motors and brake equipment as well as separating effects from yaw and lateral axle motions.

대표청구항 ▼

A combination in a self steering railway truck of a pair of longitudinally spaced rail engaging wheel and axle members each including a pair of wheels laterally connected by an axle, a frame having a central longitudinal and vertical plane and carried near opposite ends by said axles, yieldable reta

A combination in a self steering railway truck of a pair of longitudinally spaced rail engaging wheel and axle members each including a pair of wheels laterally connected by an axle, a frame having a central longitudinal and vertical plane and carried near opposite ends by said axles, yieldable retaining and suspension means supporting the frame on the axles and nominally urging said wheel and axle members into centered positions for motion along straight paths aligned with said central plane but permitting limited self-induced yawing of said members during movement along curved paths, and force transmitting linkages, one connecting each of said wheel and axle members with said frame, each said linkage including a lateral steering beam and a pair of parallel connecting rods, each said steering beam having a center pivotally connected with said frame in said central plane and being free of any connection with an associated carbody except through said frame, and said connecting rods nominally extending in planes parallel with said central plane and pivotally connecting points on the steering beams laterally opposite and equidistant from their centers with points of the wheel and axle members longitudinally aligned with their connected steering beam points to carry longitudinal forces from the wheels to the truck frame without causing significant yaw forces in the wheel and axle members.