SHEET BINDING DEVICE, SHEET PROCESSING DEVICE AND IMAGE FORMING SYSTEM

• Main Authors: SHIBAZAKI YUSUKE, YOSHIDA RYUJI, MATSUSHITA SHINGO, MORINAGA TAKUYA, NISHIFUJI TAKASHI, TAKESUTE AKIHIRO, SUZUKI NOBUYASU, TAKAHASHI KO, KOSUGE KATSUHIRO, OKAMOTO IKUHISA
• Format: Patent
• Language: English; Japanese
• Published: 24.10.2019
• Subjects: BOOKBINDING; CONVEYING; FILES; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES ORPERMANENTLY ATTACHING OBJECTS THERETO; SPECIAL PRINTED MATTER; STORING; TRANSPORTING

To provide a sheet binding device, a sheet processing device, and an image forming system capable of suppressing damage of a sheet.SOLUTION: In each of a pair of crimping teeth of a binding tool, top portions 71a, 71b of the convex portions are surfaces parallel to a paper surface of the paper bundle, and side faces of the convex portions are inclined face portions 72a and 72b inclined with respect to the paper face. Further, when the convex and concave portions of the pair of crimping teeth are engaged with each other, the inclined portions 72a, 72b come into contact with each other, and the pair of crimping teeth are configured so that a gap S is formed between the top portion 71a of a convex portion of upper crimping teeth 261a and a bottom portion 73b of a concave portion of lower crimping teeth 261b, and between the top portion 71b of a convex portion of lower crimping teeth 261b and a bottom portion 73a of a concave portion of upper crimping teeth 261a.SELECTED DRAWING: Figure 22 【課題】用紙の破損を抑制することができる用紙綴じ装置、用紙処理装置および画像形成システムを提供する。【解決手段】綴じ具の一対の圧着歯いずれも、上記凸部の頂部７１ａ，７１ｂが上記用紙束の紙面に対して平行な面となっており、上記凸部における側面が、上記紙面に対して傾斜した斜面部７２ａ，７２ｂとなっている。また、一対の圧着歯の互いの凹凸をかみ合わせたとき、上記傾斜部７２ａ、７２ｂ同士が接触し、かつ、上圧着歯２６１ａの凸部の頂部７１ａと下圧着歯２６１ｂの凹部の底部７３ｂとの間および下圧着歯２６１ｂの凸部の頂部７１ｂと上圧着歯２６１ａの凹部の底部７３ａとの間いずれにも隙間Ｓが形成されるよう一対の圧着歯が構成されている。【選択図】図２２