Global Patent Index - EP 0950445 A3

EP 0950445 A3 2001-01-17 - Apparatus and method for making coil springs

Title (en)

Apparatus and method for making coil springs

Title (de)

Verfahren und Vorrichtung zur Herstellung von Schraubenfedern

Title (fr)

Procédé et dispositif pour la fabrication de ressorts hélicoidaux

Publication

EP 0950445 A3 (EN)

Application

EP 99104825 A

Priority

IT MI980815 A

Abstract (en)

[origin: EP0950445A2] An apparatus for making coil springs comprises a wire feeding assembly (1), a supporting assembly (6) for supporting at least a forming foot element (3) for forming the spring turns, a coil spring axial pitch forming tool, and a cutting assembly (2a,2b). The main feature of the invention is that the foot element supporting assembly (6) comprises a plurality of slides, driven by respective driving servomotors, controlled by a digitally controlled processor, and which can be oriented according to directions adapted to provide a proper geometrical configuration of the turns of the spring, to arrange the foot elements opposite to the wire feeding direction in order to cause the coil wire to yield depending on the technological properties thereof. <IMAGE>

IPC 1-7 (main, further and additional classification)

B21F 3/02

IPC 8 full level (invention and additional information)

B21F 3/02 (2006.01)

CPC (invention and additional information)

B21F 3/02 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0950445 A2 19991020; EP 0950445 A3 20010117; IT 1303020 B1 20001020; IT MI980815 A1 19991018

INPADOC legal status


2002-08-14 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010718

2001-10-04 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE ES FR GB

2001-01-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-01-17 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

1999-10-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE ES FR GB

1999-10-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI