Steering apparatus with multi-steering modes

摘要

The present invention relates to a steering system that allows the user to switch between a first steering mode and a second steering mode by a purely mechanical means. This includes, but is not limited to, switching from an all-wheel steering mode to a crab steering mode. The four wheel steering interchange system includes a chassis, a front wheel steering system, a rear wheel steering system, and a steering control link that connects the front wheel steering system and the rear wheel steering system. The four wheel steering interchange system also includes a steering interchange that mechanically switches the steer of the attached vehicle from one mode to a second mode.

主权项

1. A four-wheel steering interchange system for motor vehicles having a chassis, the steering interchange system comprising:
a front wheel steering system configured to control a first turning movement of at least one front wheel; a rear wheel steering system configured to control a second turning movement of at least one rear wheel; a steering control link comprising a first end and oppositely-disposed second end, the steering control link first end coupled to the front wheel steering system and the steering control link second end coupled to the rear wheel steering system; a mechanical steering mode interchange disposed between the rear wheel steering system and the steering control link second end configured to mechanically switch the four-wheel steering system from one steering mode to another steering mode; wherein the front wheel steering system further comprises a front L-shaped pivot arm comprising a vertical tube and a front L-shaped pivot arm top plate wherein;
the front L-shaped pivot arm top plate comprises a front L-shaped pivot arm top plate first end and a front L-shaped pivot arm top plate second end;a front L-shaped pivot arm top plate aperture disposed on the front L-shaped pivot arm top plate first end for accepting the front L-shaped pivot arm vertical tube;a front L-shaped pivot arm top plate groove disposed on the front L-shaped pivot arm top plate second end for interacting with a front wheel crossbar; a front L-shaped pivot arm middle plate wherein;
the front L-shaped pivot arm middle plate comprises a front L-shaped pivot arm middle plate first end and a front L-shaped middle plate second end;
a front L-shaped pivot arm middle plate first aperture disposed on the front L-shaped arm middle plate first end and fixed to the front L-shaped pivot arm vertical tube;a front L-shaped pivot arm middle plate second aperture disposed on the front L-shaped arm middle plate second end; a front L-shaped pivot arm bottom plate wherein;
the front L-shaped pivot arm bottom plate comprises a front L-shaped pivot arm bottom plate first end and a front L-shaped pivot arm bottom plate second end;a front L-shaped pivot arm bottom plate first aperture disposed on the front L-shaped arm middle plate first end and fixed to the front L-shaped pivot arm vertical tube;a front L-shaped pivot arm bottom plate second aperture disposed on the front L-shaped arm bottom plate second end;the front L-shaped pivot arm bottom plate second aperture is concentric to and aligns with the front L-shaped pivot arm middle plate second aperture;the front L-shaped pivot arm bottom plate is parallel to the front L-shaped pivot arm middle plate; andthe front L-shaped pivot arm vertical tube couples the front L-shaped pivot arm top plate, the front L-shaped pivot arm middle plate, and the front L-shaped pivot arm bottom plate together such that the front L-shaped pivot arm top plate always lies within a plane parallel to planes for the front L-shaped pivot arm middle plate and the front L-shaped pivot arm bottom plate and wherein a longitudinal axis of the L-shaped pivot arm top plate is perpendicular to longitudinal axes of both the L-shaped pivot arm middle plate and the L-shaped pivot arm bottom plate; and the front L-shaped pivot arm vertical tube connects the front L-shaped pivot arm top plate, front L-shaped pivot arm middle plate and the front L-shaped pivot arm bottom plate together such that the front L-shaped pivot arm faces the chassis.