Paper folding mechanism and paper folding apparatus

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 45/18 (2006.01)

Patent

CA 2688617

A paper sheet folding mechanism and a paper sheet folding device which are able to fold a paper sheet without damaging the paper sheet and with good accuracy along a folding line. The paper sheet folding mechanism has a first folding roller (51), a second folding roller (52), a first conveying roller (61), a second conveying roller (62), a thrusting member (71), and a control section. The first and second folding rollers (51, 52) are mounted so as to nip a paper sheet with a folding line positioned at the leading edge of the paper sheet and pass the paper sheet in a first direction. The first folding roller (51) and the first conveying roller (61) are mounted so as to nip a paper sheet and convey the paper sheet in a second direction perpendicular to the first direction. The second folding roller (52) and the second conveying roller (62) are mounted so as to nip a paper sheet and convey the paper sheet in a desired one of the second direction and the direction opposite the second direction. The thrusting member (71) pushes out in the first direction a folding line of a paper sheet, conveyed by the first and second conveying rollers (61, 62), to send the paper sheet into the nip between the first and second folding rollers (51, 52).

La présente invention se rapporte à un mécanisme de pliage de feuille de papier et à un dispositif de pliage de feuille de papier pouvant plier une feuille de papier sans endommager la feuille de papier et avec une bonne précision le long d~une ligne de pliage. Le mécanisme de pliage de feuille de papier comporte un premier rouleau de pliage (51), un second rouleau de pliage (52), un premier rouleau d~acheminement (61), un second rouleau d~acheminement (62), un élément de poussée (71), et une section commande. Les premier et second rouleaux de pliage (51, 52) sont montés de manière à pincer une feuille de papier, une ligne de pliage étant positionnée sur le bord d~attaque de la feuille de papier, et à faire passer la feuille de papier dans une première direction. Le premier rouleau de pliage (51) et le premier rouleau d~acheminement (61) sont montés de manière à pincer une feuille de papier et à acheminer la feuille de papier dans une seconde direction perpendiculaire à la première direction. Le second rouleau de pliage (52) et le second rouleau d~acheminement (62) sont montés de manière à pincer une feuille de papier et à acheminer la feuille de papier dans la direction souhaitée parmi la seconde direction et la direction opposée à la seconde direction. L~élément de poussée (71) pousse dans la première direction une ligne de pliage d~une feuille de papier, acheminée par les premier et second rouleaux d~acheminement (61, 62), afin d~envoyer la feuille de papier dans la pince entre les premier et second rouleaux de pliage (51, 52).

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