(19)
(11) EP 0 536 812 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.05.1993 Bulletin 1993/19

(43) Date of publication A2:
14.04.1993 Bulletin 1993/15

(21) Application number: 92121016.7

(22) Date of filing: 30.06.1988
(51) International Patent Classification (IPC)5: B21D 51/26, B21D 22/30, B21D 22/22
(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

(62) Application number of the earlier application in accordance with Art. 76 EPC:
88110508.4 / 0297596

(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: : 
   
     
    Remarks:
    This application was filed on 09 - 12 - 1992 as a divisional application to the application mentioned under INID code 60.
     


    (54) Can body making apparatus


    (57) A redraw apparatus is provided for a can body making apparatus wherein the redraw carriage (40) of the redraw apparatus is mounted for substantially friction-free sliding reciprocating movement over a pair of spaced apart support posts (70,72) which are fixedly mounted on the housing (18) holding the can forming and ironing dies. Also, a counterbalancing system (110) is provided for applying a force to counterbalance the weight of a portion of structures used to reciprocate the redraw carriage (40). Additionally, a ram assembly (150) is provided for supporting a ram (14) for movement through the redraw apparatus and the can forming and ironing dies wherein a pair of spaced apart elongated shafts (154,156) are fixedly mounted and a ram carriage (12) having the ram attached thereto is provided with liquid bearings (180,182) for mounting the ram carriage (12) on the elongated shafts (154,156) for substantially friction free movement thereover. A guide liquid bearing is also used to ensure proper alignment of the ram.






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