초록 ▼

A vehicular steering mechanism of overly complex construction is known which displaces a left turn control valve or a right turn control valve through separated cams in response to the rotation of a steering wheel. The subject steering mechanism is simpler, more economical and more compact by includ

A vehicular steering mechanism of overly complex construction is known which displaces a left turn control valve or a right turn control valve through separated cams in response to the rotation of a steering wheel. The subject steering mechanism is simpler, more economical and more compact by including an input shaft and a single actuating cam which are conjointly rotatable away from a neutral position in either direction. The actuating cam defines a profiled guide slot of a substantially spiral shape, and a cam follower assembly is cooperatively associated therewith including a cam following roller wheel that is received in the profiled guide slot. The cam follower assembly includes a bellcrank supporting the roller wheel and indirectly connected to a left turn control valve and a right turn control valve. The vehicle is steered by the controlled rotation of the bellcrank and the subsequent displacement of the control valves and. The steering mechanism also includes an effective centering and stop assembly.

대표청구항 ▼

A steering mechanism of a vehicle for converting the rotational movement of a steering input control member to the controlled displacement of a left turn control valve and a right turn control valve, comprising: an input shaft; a single actuating cam connected to the input shaft for joint rotation a

A steering mechanism of a vehicle for converting the rotational movement of a steering input control member to the controlled displacement of a left turn control valve and a right turn control valve, comprising: an input shaft; a single actuating cam connected to the input shaft for joint rotation about a central axis in either direction away from a central position in response to rotation of the steering input control member, the actuating cam defining a single profiled guide slot having a central transition portion and a pair of end surfaces disposed oppositely away from the central transition portion; and cam follower means for controllably displacing the left and right turn control valves and including a cam follower element received in the single profiled guide slot.