US 12,434,929 B2
Sheet conveyance apparatus and image forming apparatus
Keita Nakajima, Shizuoka (JP); and Ko Katahira, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 31, 2023, as Appl. No. 18/362,711.
Claims priority of application No. 2022-126812 (JP), filed on Aug. 9, 2022.
Prior Publication US 2024/0051773 A1, Feb. 15, 2024
Int. Cl. B65H 5/06 (2006.01); B65H 3/06 (2006.01); B65H 3/44 (2006.01); B65H 29/14 (2006.01); B65H 31/02 (2006.01)
CPC B65H 5/062 (2013.01) [B65H 3/0669 (2013.01); B65H 3/0684 (2013.01); B65H 3/44 (2013.01); B65H 29/14 (2013.01); B65H 31/02 (2013.01); B65H 2801/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sheet conveyance apparatus comprising:
a roller pair configured to convey a sheet and including a first roller and a second roller;
a biasing member;
a roller holder configured to hold the first roller and to be biased by the biasing member so that the first roller is biased toward the second roller, wherein the roller holder includes a guided portion and the guided portion includes a first guided portion and a second guided portion positioned upstream of the first guided portion in a biasing direction of the biasing member; and
a guiding portion including a first guide and a second guide,
wherein the first guide is configured to movably support and guide the first guided portion, the second guide is configured to movably support and guide the second guided portion, and the guiding portion is configured to movably guide the roller holder so that the first and second rollers can take a first state where the first roller comes into contact with the second roller with a contact force that is a predetermined force and take a second state where the contact force is reduced from the predetermined force,
wherein a first direction in which the first guide guides the first guided portion is inclined relative to a second direction in which the second guide guides the second guided portion, and
wherein, when viewed in a rotational axis direction of the first roller in a case where the first and second rollers are in the first state, an angle formed by a straight line passing through rotational centers of the first and second rollers and the first direction is smaller than an angle formed by the straight line and the second direction.