Patent ID: 11966183
Assignee: CANON KABUSHIKI KAISHA
Field: Handling (Mechanical engineering)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A sheet conveyance apparatus comprising:
a sheet supporting portion configured to support a sheet;
a sheet feeder configured to feed the sheet supported on the sheet supporting portion;
a first roller configured to convey the sheet fed by the sheet feeder;
a second roller configured to convey the sheet fed by the sheet feeder and to rotate about a common axis with the first roller;
an abutment member against which a leading edge of a sheet conveyed by the first roller and the second roller abuts, a loop on the sheet being formed in a case where the leading edge of the sheet conveyed by the first roller and the second roller abuts against the abutment member;
a first guide configured to guide the sheet conveyed by the first roller and the second roller to the abutment member;
a second guide configured to guide the sheet conveyed by the first roller and the second roller to the abutment member, the second guide being opposed to the first guide and defining a conveyance path having a curved area between the first and second rollers and the abutment member with the first guide, the conveyance path and the first guide being arranged outside the second guide in a direction of curvature of the curved area;
a first rotary member configured not to nip the sheet which is conveyed by the first roller and the second roller and arranged outside the second guide in the direction of curvature of the curved area so as to be rotated by a surface of the sheet that is guided by the first guide;
a second rotary member configured not to nip the sheet which is conveyed by the first roller and the second roller and arranged outside the second guide in the direction of curvature of the curved area so as to be rotated by the surface of the sheet that is guided by the first guide; and
a third rotary member configured not to nip the sheet which is conveyed by the first roller and the second roller and arranged outside the second guide in the direction of curvature of the curved area so as to be rotated by the surface of the sheet that is guided by the first guide,
wherein at least a part of the first rotary member, at least a part of the second rotary member, and at least a part of the third rotary member are arranged in the curved area,
the first roller is arranged on a first side with respect to the second roller in a width direction orthogonal to a sheet conveyance direction,
the first rotary member is arranged on the first side with respect to the first roller in the width direction,
the second rotary member is arranged on a second side opposed to the first side with respect to the second roller in the width direction,
the third rotary member is arranged between the first roller and the second roller in the width direction, and
the first rotary member, the second rotary member, and the third rotary member are arranged so as to be overlapped with each other as viewed in the width direction.