Support jack

US8276885B2 · kind B2 · utility

Assignee

• JOST-WERKE GMBH · DE

Inventors

• Gerald Muller · Rodgau, DE
• Günter Seidel · Hameln, DE
• José Manuel Algüera · Aschaffenburg, DE

Key dates

• Filing date: Jul 20, 2006
• Grant date: Oct 2, 2012
• Expiry date: Sep 4, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60S9/08
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A support jack, in particular for supporting semitrailers, includes a vertically telescopically displaceable supporting element having an outer sleeve, and an inner sleeve that can be vertically displaced in a telescopic fashion, each sleeve having a rectangular cross-section with four sidewalls. At least the inner sleeve has a wall plate joined to two adjacent side walls with welding seams that improve the bending stiffness of the support jack. The welding seams can be located inside or outside either of the sleeves. Such a support jack can be located on the lower side of any vehicle.