US 12,473,165 B2
Sheet conveyance apparatus and image forming apparatus
Yasuaki Matsumoto, Shizuoka (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 24, 2023, as Appl. No. 18/125,919.
Claims priority of application No. 2022-064386 (JP), filed on Apr. 8, 2022.
Prior Publication US 2023/0322512 A1, Oct. 12, 2023
Int. Cl. B65H 9/00 (2006.01); B65H 5/02 (2006.01); B65H 5/06 (2006.01); B65H 5/38 (2006.01)
CPC B65H 9/004 (2013.01) [B65H 5/025 (2013.01); B65H 5/068 (2013.01); B65H 5/38 (2013.01); B65H 2801/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sheet conveyance apparatus comprising:
a conveyance rotating member pair configured to convey a sheet in a sheet conveyance direction;
a skew correction portion including a first abutment surface against which a leading edge of the sheet conveyed by the conveyance rotating member pair abuts, and a second abutment surface that is disposed at a position different from the first abutment surface in a width direction orthogonal to the sheet conveyance direction, the leading edge of the sheet abutting against the first abutment surface and the second abutment surface in a case where a skew of the sheet is corrected
wherein the first abutment surface includes a first root portion,
wherein the second abutment surface includes a second root portion; and
a guide portion that guides the sheet conveyed by the conveyance rotating member pair toward the first abutment surface and the second abutment surface,
wherein the guide portion includes:
a guide surface that is disposed between the first abutment surface and the second abutment surface in the width direction and forms a conveyance path through which a sheet passes;
a first recess portion that is formed at the guide portion and disposed upstream of the first abutment surface in the sheet conveyance direction, is disposed at a position overlapping with the first abutment surface in the width direction, and is recessed to an opposite side to the conveyance path with respect to the guide surface; and
a second recess portion that is formed at the guide portion and disposed upstream of the second abutment surface in the sheet conveyance direction, is disposed at a position overlapping with the second abutment surface in the width direction, and is recessed to the opposite side to the conveyance path with respect to the guide surface,
wherein the first root portion is positioned within the first recess portion such that the leading edge of the sheet enters the first recess portion upon abutting against both the first abutment surface and the second abutment surface, and
wherein the second root portion is positioned within the second recess portion such that the leading edge of the sheet enters the second recess portion upon abutting against both the first abutment surface and the second abutment surface.