|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B60D-001/14 B60K-017/30 B60K-017/32|
|미국특허분류(USC)||180/51 ; 180/135 ; 280/496|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 21 인용 특허 : 0|
A four-wheel drive tractor with front-wheel steering on the front axle and rear-wheel articulated steering to provide maximum traction, stability, and maneuverability. The front axle pivots on a pivot longitudinal with the vehicle body and the front wheels pivot relative to the axle to steer the front end of the vehicle. The articulated vehicle bearings are positioned near the rear axle to provide a long front frame supporting portion for the operator station of the vehicle and to improve stability of the vehicle when the vehicle is articulated.
A four-wheel drive tractor comprising a chassis including a front frame and rear frame, a drawbar for applying a draft load, means pivotally connecting said drawbar to and carrying the draft load on said front frame of said chassis, an engine supported on the front frame of said chassis, an axle pivotally supporting the front frame of said chassis, front steerable drive wheels rotatably supporting said front axle and pivotal relative to said front axle for front-end steering, front wheel steering mechanism for steering the front wheels, a rear axle suppo...