(19)
(11) EP 0 297 596 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.09.1990 Bulletin 1990/36

(43) Date of publication A2:
04.01.1989 Bulletin 1989/01

(21) Application number: 88110508.4

(22) Date of filing: 30.06.1988
(51) International Patent Classification (IPC)4: B21D 51/26, B21D 22/30
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI NL SE

(30) Priority: 01.07.1987 US 69840
30.11.1987 US 126280

(60) Divisional application:
92121016.7 / 0536812

(71) Applicant: COORS BREWING COMPANY
Golden, Colorado 80401 (US)

(72) Inventors:
  • Grims, Conrad M.
    Golden Colorado 80403 (US)
  • Johansson, Bert
    Golden Colorado 80403 (US)

(74) Representative: Baillie, Iain Cameron et al
c/o Ladas & Parry Altheimer Eck 2
80331 München
80331 München (DE)


(56) References cited: : 
   
       


    (54) Can body making apparatus


    (57) A redraw apparatus is provided for a can body making apparatus wherein the redraw carriage of the redraw apparatus is mounted for substantially friction-free sliding reciprocating movement over a pair of spaced apart support posts which are fixedly mounted on the housing holding the can forming and ironing dies. Also, a counterbalancing system is provided for applying a force to counterbalance the weight of a portion of structures used to reciprocate the redraw carriage. Additionally, a ram assembly is provided for supporting a ram for movement through the redraw apparatus and the can forming and ironing dies wherein a pair of spaced apart elongated shafts are fixedly mounted and a ram carriage having the ram attached thereto is provided with liquid bearings for mounting the ram carriage on the elongated shafts for substantially friction free movement thereover. A guide liquid bearing is also used to ensure proper alignment of the ram.







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