4-WHEEL STEERING APPARATUS FOR CAR

摘要

PURPOSE:To steer rear wheels and vary the steering ratio with high reliability by the simple constitution by controlling the operation of one gear in the differential apparatus of a steering-ratio varying mechanism by a bendable joint mechanism. CONSTITUTION:A differential gear apparatus 22 is equipped with an input bevel gear 24 connected with a shaft 20, and a differential casing gear 26 operationally connected with the input shaft 20 through a flex shaft coupling type bendable joint type control mechanism 25. Said joint type control mechanism 25 is arranged in parallel to the input shaft 20, and equipped with an input shaft 31 connected with the shaft 20 through a gear 30 and an output shaft 33 which is arranged coaxially with the input shaft 31 and connected through a gear 32 onto the differential casing gear 26.