BINDING PROCESSING DEVICE AND IMAGE FORMATION SYSTEM

Japanese Patent JP2017178522

A

PROBLEM TO BE SOLVED: To improve the binding force of a sheet bundle in comparison to a case where the volume of a gap formed between a protrusion and a recess is smaller than the volume of the sheet sandwiched between the protrusion and the recess when binding the sheet bundle by engaging the protrusion with the recess.SOLUTION: A sheet processing device includes: a first pressure member 71 which is formed of a curved surface having a curvature and has a first protrusion 711 protruding toward a sheet bundle SB; and a second pressure member 72 which is formed of a curved surface having a curvature, has a second recess 722 engaged with the first protrusion 711 via the sheet bundle SB, and applies pressure with the sheet bundle SB held between the first pressure member 71 and itself. In such a state that the first protrusion 711 of the first pressure member 71 and the second recess 722 of the second pressure member 72 are engaged with each other, on the cross section along the pressure direction D2, a gap G1 having the larger volume in comparison to the sheet bundle SB sandwiched between the first protrusion 711 and the second recess 722 is formed between the first protrusion 711 and the second recess 722.SELECTED DRAWING: Figure 5

NAKANO YOSHINORI
AWANO HIROAKI
MAKITA TAKUYA
HARADA KATSUMI
TSUTSUMI KOJIRO
HIROTA JUNICHI
HAGIWARA HIROSHI
KUSUMOTO YASUHIRO
SHIRAISHI EMIKO

JP2016066599A

October 05, 2017

March 29, 2016

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FUJI XEROX CO LTD

B65H37/04; B42B5/00; B42C13/00

JP2010208854A	2010-09-24
JP2014121865A	2014-07-03

Jiro Kobe
Fumio Ogata
Takehiko Sunada

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