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:
Oct. 17, 1978
Filed:
Apr. 22, 1977
Richard James Reeve, Vancouver, WA (US);
Dennis Raymond Shirley, Portland, OR (US);
Other;
Abstract
A self-steering tandem bogie for the rear of an articulated vehicle. The bogie comprises a front and a rear axle which are universally attached to a pair of longitudinally extending walking beams for sliding motion thereon, affording angular variation of the axles during vehicle turning. The load of the vehicle is transferred to the bogie by a steering unit which is universally attached to the walking beams between the two axles. As the vehicle executes a turn, the steering unit rotates in the direction of vehicle turn, while the walking beams tend to maintain the straight-drive orientation. This relative movement between the steering unit and the walking beams is transmitted to the front axle by a pair of steering arms, causing the front axle to rotate in the direction of turn, and thereby facilitating vehicle turning.