Patent · US Expired

Roof rail for vehicles and manufacturing process therefor

US6250528A · kind A · utility

10Cited by

14References

12Claims

0Family size

Assignee

JAC Products Deutschland GmbH · DE

Inventors

Karl-Heinz Lumpe · Sprockhövel, DE
Klaus Kolodziei · Wuppertal, DE
Herbert Becker · Coburg, DE

Key dates

Filing date	Jan 26, 2000
Grant date	Jun 26, 2001
Priority date	—
Expiry date	Jan 26, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21D53/88
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A roof rail for vehicles with a tubular gallery rod (1) and a pair of rail feet (2) which are arranged at its ends, are supported on a vehicle's roof (4). The rail feet (2) are each formed from the same length of material as the gallery rod (1) and consist of bent and flared end sections of the gallery rod (1). The gallery rod (1) has a continuously increasing cross section proceeding from the transition region of one rail foot (2) up to the transition region into the other rail foot (2). A manufacturing process for the roof rail is also disclosed in which a length of extruded material having an expansion fold is formed with arcing end portions. The length of material is then placed in a molding tool and pressurized to expand the material such that it forms a roof rail.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.