Apparatus and method for lowering and raising a trailer

US11148645B2 · kind B2 · utility

Assignee

• SAF-Holland, Inc. · DE

Inventors

• William J. Hicks · Muskegon, US
• Andrew L. Wallner · Grand Rapids, US
• David Sun · Shanghai, CN
• Tianyu Ling · Allegan, US
• Patrick Salois · Muskegon, US
• Brian M. Collins · Grand Rapids, US

Key dates

• Filing date: Sep 12, 2018
• Grant date: Oct 19, 2021
• Expiry date: Nov 25, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2200/201
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A landing gear assembly includes a leg assembly including a first portion and a second portion, wherein the first and second portions of the leg assembly telescopingly engage one another, a gear assembly operably coupled to the first and second leg portions and configured to telescopingly move the first and second leg portions with respect to one another, and a drive assembly operably coupled to the gear assembly, and including a planetary gear arrangement configured to drive the gear assembly at a first speed and at a second speed that is different than the first speed, and a motor configured to drive the planetary gear assembly.