(19)
(11) EP 0 435 413 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.09.1991 Bulletin 1991/39

(43) Date of publication A2:
03.07.1991 Bulletin 1991/27

(21) Application number: 90250336.6

(22) Date of filing: 22.12.1990
(51) International Patent Classification (IPC)5: B41F 27/12
(84) Designated Contracting States:
AT CH DE FR GB IT LI NL SE

(30) Priority: 26.12.1989 JP 337338/89
03.04.1990 JP 87439/90
26.12.1989 JP 149750/89 U

(71) Applicant: Komori Corporation
Sumida-ku Tokyo (JP)

(72) Inventors:
  • Maejima, Kazuhiro c/o Toride Plant, Komori Corp.
    Ibaraki (JP)
  • Oyoshi, Hisaaki c/o Toride Plant, Komori Corp.
    Ibaraki (JP)
  • Miyamoto, Toshio c/o Toride Plant, Komori Corp.
    Ibaraki (JP)

(74) Representative: Wenzel, Heinz-Peter, Dipl.-Ing. et al
Patentanwälte Wenzel & Kalkoff, Postfach 73 04 66
D-22124 Hamburg
D-22124 Hamburg (DE)


(56) References cited: : 
   
       


    (54) Method of replacing plate for printing press and apparatus therefor


    (57) In a plate replacing apparatus for a printing press, a plate lockup opening/closing unit opens/closes leading- and trailing-side plate lockup devices (5, 30) upon pivotal movement of a cam shaft (19). A loader drive unit (84) drives a loader (83) on the plate replacing apparatus between an operation position where a distal end portion of the loader (83) comes close to the plate lockup devices (5, 30) and a storage position where the distal end portion of the loader (83) is separated from the plate lockup devices (5, 30). A plate removal unit grips an old plate (89) released from the plate lockup devices (5, 30) and inserted into the loader (83) upon rotation of the plate cylinder (1), and moves the old plate (89) into the loader (83). A plate supply unit inserts a new plate (105) loaded in the loader (83) into the leading-side plate lockup device (5). A plate press unit (118) presses the new plate (105) inserted into the leading-side plate lockup device (5) and wound around the circumferential surface of the plate cylinder (1) and inserts the other end of the new plate (105) into the trailing-side plate lockup device (30). A predetermined plate position stop unit pivots the plate cylinder (1) to stop at a plate gripper position. A controller operates the above apparatus and units.






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