(19)
(11) EP 3 943 206 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.04.2022 Bulletin 2022/16

(43) Date of publication A2:
26.01.2022 Bulletin 2022/04

(21) Application number: 21184734.8

(22) Date of filing: 09.07.2021
(51) International Patent Classification (IPC): 
B21D 22/28(2006.01)
B21D 22/22(2006.01)
 B21D 51/26(2006.01)
B21D 24/12(2006.01)
(52) Cooperative Patent Classification (CPC):
B21D 22/28; B21D 51/26; B21D 22/22; B21D 24/12
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 20.07.2020 JP 2020123738
20.07.2020 JP 2020123739

(71) Applicants:
  • Universal Can Corporation
    Tokyo 112-8525 (JP)
  • G&P Inc.
    Tokyo 114-8538 (JP)

(72) Inventors:
  • Hanafusa, Tatsuya
    Bunkyo-ku, Tokyo, 112-8525 (JP)
  • Yaguchi, Naoyuki
    Kikugawa-shi, Shizuoka, 439-0018 (JP)
  • Hiramatsu, Hideyuki
    Kikugawa-shi, Shizuoka, 439-0018 (JP)

(74) Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)

   


(54) CAN BODY MAKER AND FRAME FOR DRIVE MECHANISM


(57) A can body maker includes a ram shaft extending in a front-rear direction, a punch disposed at a front end portion of the ram shaft, a reciprocating linear motion mechanism connected to a rear end portion of the ram shaft to reciprocate and linearly move the ram shaft in the front-rear direction, a die having a through hole into which the punch is inserted, a cup holding mechanism which presses a cup-shaped body against an end face in which the through hole of the die opens, and a cup holder drive mechanism that oscillates the cup holding mechanism in the front-rear direction, wherein the cup holder drive mechanism has a cam structure and is disposed directly below the cup holding mechanism.







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Search report