The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 1992
Filed:
Nov. 16, 1989
Siegfried Rewitzer, Ihrlerstein, DE;
Hoechst Aktiengesellschaft, , DE;
Abstract
A steering roller arrangement for a trackless floor vehicle in the form of a so-called three-wheeled vehicle is described. With this vehicle, in addition to two running wheels, a steering roller is provided which can be swiveled about a vertical axis by means of a ring mount for traveling in a curved line and to achieve a trailing effect. Relative to the rotatable part of the ring mount, the steering roller is movable between two opposite trailing positions such that, with a reversal of the direction of travel, the required alteration of the steering roller trailing effect is brought about by a corresponding adjustment of the steering roller. In this way uncontrolled veering of the vehicle is avoided which occur with conventional three-wheeled vehicles on account of the rotation of the steering roller by 180.degree. caused by the trailing effect of the steering roller. The steering roller is expediently displaceable in a straight line by a linear guide between the two trailing positions. The linear guide can serve at the same time as a self-aligning bearing, by mans of which the steering roller can be tilted about a horizontal axis to adapt to unevenness in the floor.