(19)
(11) EP 0 919 307 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.01.2002 Bulletin 2002/05

(43) Date of publication A2:
02.06.1999 Bulletin 1999/22

(21) Application number: 98203839.0

(22) Date of filing: 13.11.1998
(51) International Patent Classification (IPC)7B21D 28/06, B21D 35/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 27.11.1997 IT MI972630

(71) Applicant: Donatiello, Gaetano
20035 Lissone (Milano) (IT)

(72) Inventor:
  • Donatiello, Gaetano
    20035 Lissone (Milano) (IT)

(74) Representative: Martegani, Franco 
Franco Martegani S.r.l. Via Carlo Alberto, 41
20052 Monza (Milano)
20052 Monza (Milano) (IT)

   


(54) Process for the blanking of metallic drawer guides


(57) A process for the blanking of metallic drawer guides, in particular metallic guides for so-called "self-closing" drawers, by a transfer machine, comprising at least one shearing phase from a strip (10) to shape the contours of a preform (12), a phase of separating said preform (12) from said strip (10) to shape a single flat preform (12) in an elongated rectangular form, suitable for producing a whole (13, 14) with two opposed right and left-side guides of a drawer, with additional molding and shaping phases of said flat preform in two parts in the shape of a "Z" facing each other in a specular manner while being centrally joined, and a separating phase by blanking the said two parts so as to shape two guides having an essentially Z-formed cross section (30,40) with an inclined ramp (31,41) in a terminal area (12a).







Search report