Multi-part longitudinal shaft for motor vehicles

US8206228B2 · kind B2 · utility

Assignee

• IFA-Technologies GmbH · DE

Inventors

• Gerald Langer · Haldensleben, DE
• Sebastian Frost · Bindfelde, DE

Key dates

• Filing date: Nov 19, 2009
• Grant date: Jun 26, 2012
• Expiry date: Aug 28, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S464/906
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A multi-part longitudinal drive shaft of a motor vehicle consists of two shaft sections that are each formed by a shaft tube connected with each other by a homokinetic displacement joint. The outer diameter of the shaft tube in the second shaft section is smaller than the inner diameter of the shaft tube of the first section. The outer joint ring of the homokinetic displacement joint is firmly connected with the shaft tube of the first shaft section and a ball hub of the joint is connected with the second shaft section. When a specific axial position is exceeded, the homokinetic displacement joint can be broken down. The individual parts of the two shaft sections can be displaced into one another, after break-down of the homokinetic displacement joint, so that the second shaft section is displaced in the direction of the first shaft section.