STEERING DEVICE FOR VEHICLE

摘要

PURPOSE:To prevent the damage by providing a transmitted displacement absorbing mechanism absorbing the displacement to be transmitted when a load with the preset value or above occurs in the middle of a steering transmitting system mechanically transmitting the displacement by the steering of a handle to the valve member of a hydraulic transfer valve. CONSTITUTION:A steering ratio variable means 20 using a transmitting shaft 28 inputted with the steering force of a handle as an input shaft is provided, and it changes the absolute quantity and direction of the stroke displacement of an output displacement member 30 with the tilt angle when a sway shaft 40 is rotated centering axes l5 and l6 by the operation of a motor 44. A hydraulic transfer valve 22 controlling the feeding and discharging of the oil pressure to a power cylinder 54 displacing a steering rod 24 is provided. The output displacement member 30, the valve member 52 of the hydraulic transfer valve 22 and the steering rod 24 are connected by a displacement transmitting means 26, a transmitted displacement absorbing mechanism 35 absorbing the displacement transmitted for a load with the preset value or above is provided on the output displacement member 30.