(19)
(11) EP 0 389 736 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.04.1991 Bulletin 1991/14

(43) Date of publication A2:
03.10.1990 Bulletin 1990/40

(21) Application number: 89830464.7

(22) Date of filing: 24.10.1989
(51) International Patent Classification (IPC)5: B21D 5/12
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR LI LU NL SE

(30) Priority: 31.03.1989 IT 4005389

(71) Applicant: OTO MILLS S.P.A.
I-42022 Boretto (Reggio Emilia) (IT)

(72) Inventor:
  • Chezzi, Aleardo
    I-42022 Boretto (Reggio Emilia) (IT)

(74) Representative: Lanzoni, Luciano 
BUGNION S.p.A. Via Emilia Est, 25
41100 Modena
41100 Modena (IT)


(56) References cited: : 
   
       


    (54) A roll forming machine


    (57) The roll forming machine consists of a succession of stands, each equipped with at least two rolls (12, 13) disposed with axes parallel; the rolls of each stand are mounted to centre shafts (42, 43) journalled between two uprights (17, 31), one of which is associated permanently with a base (2) that can be fitted to and removed from the fixed bed (3) of the machine, whilst the other (31) is attached direct to the bed (3) and carries two sleeves (44, 45), turning in bearings (34, 35), which are aligned coaxially with the centre shafts. The sleeves (44, 45) are designed to engage the relative shafts (42, 43) in a coupling arrangement whereby both members can slide axially, though the one must turn with the other.







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