(19)

(11)

EP 0 231 369 A1

(12)

(43) Date of publication: 12.08.1987 Bulletin 1987/33 (21) Application number: 86905256.0 (22) Date of filing: 04.08.1986

(51) International Patent Classification (IPC):  B21D 31/ 02( . ) B26F 1/ 34( . ) B26D 5/ 12( . ) (86) International application number: PCT/EP1986/000460 (87) International publication number: WO 1987/000776 (12.02.1987 Gazette 1987/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU (30) Priority: 08.08.1985 IT 19850084134 (71) Applicant: Simoni, Renzo 31020 Soligo (Treviso) (IT)	(72) Inventor: Simoni, Renzo 31020 Soligo (Treviso) (IT) (74) Representative: Piovesana, Paolo  Corso del Popolo, 70 I-30172 Venezia-Mestre I-30172 Venezia-Mestre (IT)