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:
Sep. 10, 2024
Filed:
Jun. 02, 2021
Hübner Transportation Gmbh, Kassel, DE;
Karl Knieper, Kassel, DE;
Daniel Blümer, Melsungen, DE;
Detlef Gutkuhn, Espenau, DE;
Rolf Herwig, Lohfelden, DE;
HÜBNER TRANSPORTATION GMBH, Kassel, DE;
Abstract
A ramp assembly is provided comprising a ramp that is pivotally movable between a fold-in position and a fold-out position through a neutral position, a drive shaft spaced from an axis of pivot of the ramp in a direction perpendicular to the axis, a drive element transmitting rotational force from the drive shaft to the ramp such that rotation of the drive shaft causes movement of the ramp between the fold-in and fold-out positions, and a spring generating a biasing force by being rotationally tensioned, the spring biasing the drive shaft such that the ramp is biased toward the neutral position when the ramp is in the fold-out position and biased toward the neutral position when the ramp is in the fold-in position. A vehicle incorporating such ramp assembly is also contemplated.