Sheet conveying apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorYohei Suzuki
Life of this patent
Estimating the term…
Abstract
A sheet conveying apparatus includes: a conveying unit nipping a sheet in a nip portion to convey the sheet; a shutter unit rotated in a predetermined rotation direction by being pushed by the conveyed sheet to correct a skew of the sheet; a rotation transmitting unit configured to transmit a rotational driving force to the shutter unit to rotate the shutter unit in the predetermined rotation direction; and an urging unit configured to apply an urging force to the shutter unit so that the shutter unit comes into contact with a surface of the sheet, thereafter the shutter unit is returned to a waiting position along with the passage of a rear end of the sheet through the shutter unit after the shutter unit is rotated by the rotational driving force of the rotation transmitting unit.
Claims20
A sheet conveying apparatus for correcting a skew of a conveyed sheet, comprising:
- a shutter unit rotatably provided and having an abutting portion against which a leading end of the conveyed sheet abuts at a waiting position, wherein the shutter unit is rotated in a predetermined rotation direction by being pushed by the leading end of the conveyed sheet, and then the shutter unit is further rotated toward the waiting position in the predetermined rotation direction;
- a conveying unit configured to convey the sheet while nipping the sheet, wherein the conveying unit is arranged such that, the leading end of the sheet is nipped by the conveying unit while the shutter unit is rotated in the predetermined rotation direction by being pushed by the leading end of the conveyed sheet which abuts against the abutting portion;
- a rotation transmitting unit configured to transmit a rotational driving force to the shutter unit to rotate the shutter unit in the predetermined rotation direction, the rotation transmitting unit starting to transmit the rotational driving force to the shutter unit after the shutter unit rotates until the sheet is nipped by the conveying unit with the abutting portion pushed by the leading end of the sheet, and the rotation transmitting unit configured to release transmission of the rotational driving force while rotating the shutter unit to the waiting position;
- and
- an urging unit configured to apply an urging force for rotating the shutter unit in the predetermined direction so that the shutter unit, to which the rotational driving force has been transmitted by the rotation transmitting unit, is located at the waiting position.
A sheet conveying apparatus for correcting a skew of a conveyed sheet, comprising:
- a shutter unit rotatably provided, and the shutter unit having an abutting portion against which a leading end of the conveyed sheet abuts at a waiting position and another abutting portion against which a leading end of a conveyed subsequent sheet abuts at the waiting position, wherein the shutter unit is rotated in a predetermined rotation direction by being pushed by the leading end of the conveyed sheet, and then the shutter unit is further rotated toward the waiting position in the predetermined rotation direction;
- a conveying unit configured to convey the sheet while nipping the sheet, wherein the conveying unit is arranged such that, the leading end of the sheet is nipped by the conveying unit while the shutter unit is rotated in the predetermined rotation direction by being pushed by the leading end of the conveyed sheet which abuts against the abutting portion;
- a rotation transmitting unit configured to transmit a rotational driving force to the shutter unit to rotate the shutter unit in the predetermined rotation direction, the rotation transmitting unit starting to transmit the rotational driving force to the shutter unit after the shutter unit rotates until the sheet is nipped by the conveying unit with the abutting portion pushed by the leading end of the sheet, and the rotation transmitting unit configured to release transmission of the rotational driving force while rotating the shutter unit to the waiting position;
- and
- an urging unit configured to apply an urging force for rotating the shutter unit in the predetermined direction so that the shutter unit, to which the rotational driving force has been transmitted by the rotation transmitting unit, is located at the waiting position.
Dependencies are inferred from the claim text.