公开(公告)号：US20170355546A1

公开(公告)日：2017-12-14

申请号：US15603674

申请日：2017-05-24

申请人： CANON KABUSHIKI KAISHA

发明人： Takuma Koizumi

IPC分类号： B65H9/00 ,  G03G15/00

CPC分类号： B65H9/006 ,  B65H2404/13161 ,  B65H2801/06 ,  G03G15/6561 ,  G03G15/6567 ,  G03G2215/00679

摘要： A sheet conveyance device includes a registration roller pair including a first roller and a second roller, configured to form a nip by the first roller and the second roller, and configured to correct a skew of a sheet conveyed thereto by allowing the sheet to abut the nip. The first roller includes an outer peripheral surface with a groove portion, the groove portion being formed in a region in which a corner portion of a sheet abuts the outer peripheral surface, and causing a part of the outer peripheral surface to be concave and another part of the outer peripheral surface to be convex in an axial direction.

公开(公告)号：US10221030B2

公开(公告)日：2019-03-05

申请号：US15833926

申请日：2017-12-06

申请人： CANON KABUSHIKI KAISHA

发明人： Takuma Koizumi

IPC分类号： B65H29/12 ,  G03G15/00 ,  B65H5/06 ,  B65H9/00 ,  B65H9/14 ,  B65H3/06 ,  B65H1/04

摘要： A sheet conveying apparatus includes first and second roller members fixed to a rotatable shaft, a first follower roller that cooperates with the first roller member to form a conveying nip, and a second follower roller that cooperates with the second roller member to form a conveying nip. The first and second roller members have outer periphery cut-away parts and the first and second follower rollers are moveably supported and can be biased to home positions. If the first roller member cut-away part faces the first follower roller, the first follower roller is biased to move toward a home position while the nip of the second roller member nips and conveys a sheet. If the second roller member cut-away part faces the second follower roller, the second follower roller is biased to move toward a home position while the nip of the first roller member nips and conveys a sheet.

公开(公告)号：US20180162673A1

公开(公告)日：2018-06-14

申请号：US15833926

申请日：2017-12-06

申请人： CANON KABUSHIKI KAISHA

发明人： Takuma Koizumi

IPC分类号： B65H29/12 ,  G03G15/00

CPC分类号： B65H29/125 ,  B65H1/04 ,  B65H3/06 ,  B65H5/062 ,  B65H9/004 ,  B65H9/006 ,  B65H9/008 ,  B65H2404/1112 ,  B65H2404/1119 ,  B65H2404/1424 ,  B65H2404/1431 ,  B65H2404/144 ,  B65H2404/1523 ,  B65H2801/03 ,  G03G15/6511

摘要： A sheet conveying apparatus includes first and second roller members fixed to a rotatable shaft, a first follower roller that cooperates with the first roller member to form a conveying nip, and a second follower roller that cooperates with the second roller member to form a conveying nip. The first and second roller members have outer periphery cut-away parts and the first and second follower rollers are moveably supported and can be biased to home positions. If the first roller member cut-away part faces the first follower roller, the first follower roller is biased to move toward a home position while the nip of the second roller member nips and conveys a sheet. If the second roller member cut-away part faces the second follower roller, the second follower roller is biased to move toward a home position while the nip of the first roller member nips and conveys a sheet.