Global Patent Index - EP 0975540 A1

EP 0975540 A1 20000202 - METHOD FOR SEPARATING A PLURALITY OF FLAT OBJECTS ARRANGED AT LEAST PARTIALLY ON TOP OF EACH OTHER, AT A PREDETERMINED POINT

Title (en)

METHOD FOR SEPARATING A PLURALITY OF FLAT OBJECTS ARRANGED AT LEAST PARTIALLY ON TOP OF EACH OTHER, AT A PREDETERMINED POINT

Title (de)

VERFAHREN ZUM TRENNEN EINER ANZAHL MINDESTENS TEILWEISE AUFEINANDERLIEGENDER, FLÄCHIGER GEGENSTÄNDE AN EINER VORBESTIMMTEN STELLE

Title (fr)

PROCEDE POUR LA SEPARATION, EN UN POINT PREDETERMINE, D'UNE PLURALITE D'OBJETS PLATS AU MOINS PARTIELLEMENT SUPERPOSES

Publication

EP 0975540 A1 (DE)

Application

EP 98910567 A

Priority

  • CH 9800129 W
  • CH 88997 A

Abstract (en)

[origin: WO9846508A1] According to the invention, a static charge is produced on the surfaces of the flat objects (2) arranged on top of each other by guiding said objects (2) through a field of direct current oriented essentially vertically to their main surfaces. This charge creates electrical forces of attraction between the surfaces of the objects and these electrical forces of attraction increase mutual bonding. This effect caused by static charging of the surfaces of flat objects arranged on top of each other is reduced or prevented for at least one or two surfaces forming a predetermined separating point, by treating this surface or these surfaces in advance with an anti-static agent (3). No concentration of charge can be built up on the treated surface or any concentration of charge which does build up is compensated very quickly, so that there is no increase in bonding at the separating point or the bonding is much slighter than between the surfaces which are not part of the separating point. Consequently, the objects at the separating point can be moved against each other with less force. The inventive method is particularly suitable for opening multi-surface printed products at specific points.

IPC 1-7

B65H 3/18; B65H 33/06

IPC 8 full level

B42F 21/00 (2006.01); B65H 3/18 (2006.01); B65H 3/24 (2006.01); B65H 5/30 (2006.01); B65H 33/06 (2006.01); B65H 47/00 (2006.01)

CPC (source: EP)

B65H 3/24 (2013.01); B65H 5/30 (2013.01); B65H 33/06 (2013.01); B65H 47/00 (2013.01); B65H 2301/422 (2013.01); B65H 2301/5132 (2013.01); B65H 2301/5133 (2013.01); B65H 2701/1932 (2013.01)

Citation (search report)

See references of WO 9846508A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI NL SE

DOCDB simple family (publication)

WO 9846508 A1 19981022; AT 202998 T 20010715; AU 6493298 A 19981111; AU 727498 B2 20001214; CA 2285981 A1 19981022; CA 2285981 C 20060221; CZ 298389 B6 20070919; CZ 9903466 A3 20010711; DE 59801001 D1 20010816; DK 0975540 T3 20011105; EP 0975540 A1 20000202; EP 0975540 B1 20010711; ES 2162425 T3 20011216; IL 132132 A 20020912; IL 132132 D0 20010319; JP 2001519750 A 20011023; NO 313822 B1 20021209; NO 994999 D0 19991014; NO 994999 L 19991215; PL 336227 A1 20000619; RU 2203189 C2 20030427

DOCDB simple family (application)

CH 9800129 W 19980407; AT 98910567 T 19980407; AU 6493298 A 19980407; CA 2285981 A 19980407; CZ 346699 A 19980407; DE 59801001 A 19980407; DK 98910567 T 19980407; EP 98910567 A 19980407; ES 98910567 T 19980407; IL 13213298 A 19980407; JP 54334298 A 19980407; NO 994999 A 19991014; PL 33622798 A 19980407; RU 99121668 A 19980407