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:
Jul. 07, 2009
Filed:
Sep. 06, 2005
Jacek Marchel, Rochester Hills, MI (US);
Jacek Marchel, Rochester Hills, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A twist axle suspension for an automotive vehicle comprises first and second trailing arms, each having a front end and a rear end joined by an intermediate portion providing a weld site. The front ends of the trailing arms have pivots pivoted to the body of the automotive vehicle and the rear ends of the trailing arms support spring and damped rear wheels of the automotive vehicle. A perforated twist axle having first and second end sections abuts and is welded to the trailing arms at the weld sites. An arcuate apex portion joins the perforated walls to provide the twist axle with a V-shaped cross section having a shear center line disposed above the arcuate portion, the shear center being spaced a selected distance H above the axes about which the trailing arms pivot. A straight intermediate section of the twist axle is displaced from the first and second end sections to lower or raise the shear center line at the intermediate section without affecting the welds of the first and second end sections to the trailing arms.