EP 0148066 A3 19850807 - METHOD AND APPARATUS FOR MAKING A VEHICLE WHEEL WITH THINNED RIM FROM ONE PIECE OF METAL
Title (en)
METHOD AND APPARATUS FOR MAKING A VEHICLE WHEEL WITH THINNED RIM FROM ONE PIECE OF METAL
Publication
Application
Priority
FR 8321074 A 19831230
Abstract (en)
[origin: EP0148066A2] 1. Method of manufacturing a vehicle wheel with substantially lateral wheel center and profiled rim from a disk shaped metal sheet, in which a blank (2) is formed in the shape of a disk with high edge (2b) by a first deep stamping operation, then the edge (2b) and the bottom (2a) of this dish are shaped so as to form respectively the rim and the center of the wheel characterized in that said deep stamping operation is carried out with reduction of this thickness (e1 ) of the edge (2b) with respect to the thickness (e2 ) of the initial disk by controlling the force (14) of retention of the blank to be stamped, and in that, in the second stamping operation, said blank is shaped so as to determine the final diameter (D) of the wheel center at the junction thereof with said edge (2b) and so as to place the whole of the material reserved for this wheel center externally of the plane of this diameter, before shaping said edge (2b) of the dish so as to confer thereon the profile of the rim and to shape the wheel center.
IPC 1-7
IPC 8 full level
B21D 53/26 (2006.01)
CPC (source: EP)
B21D 53/264 (2013.01)
Citation (search report)
- [Y] FR 2475947 A1 19810821 - ANTONOV EVGENY [SU]
- [Y] FR 757405 A 19331226
- [A] FR 1377642 A 19641106 - DUNLOP SA
- [A] FR 2504459 A1 19821029 - MAGYAR ALUMINIUM [HU]
- [A] US 2132002 A 19381004 - HIGHT FRANKLIN R
- [A] GB 664064 A 19520102 - KELSEY HAYES WHEEL CO
- [A] GB 1022139 A 19660309 - DARWIN STEWARD COX
- [A] GB 2108914 A 19830525 - DAIMLER BENZ AG
- [A] FR 2182150 A1 19731207 - GROTNES MACHINE WORKS INC [US]
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0148066 A2 19850710; EP 0148066 A3 19850807; EP 0148066 B1 19880302; DE 3469495 D1 19880407; FR 2557479 A1 19850705; FR 2557479 B1 19870507
DOCDB simple family (application)
EP 84402562 A 19841212; DE 3469495 T 19841212; FR 8321074 A 19831230