Sheet conveying apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorYoichiro Iizuka
Life of this patent
Estimating the term…
Abstract
A sheet conveying apparatus including: a locking member having an abutment surface abutting a sheet to correct skew feed of the sheet; a holding member configured to hold the locking member to rotate from a waiting position when the locking member is pushed by the sheet; a roller pair configured to nip the sheet abutting the abutment surface; a first urging portion configured to urge the holding member to the waiting position; a movable support portion configured to support the locking member in a manner that the locking member is located a retracted position where the locking member contacts a surface of the sheet and allows the sheet to pass; and a second urging portion configured to urge the locking member to a position where the abutment surface abuts a succeeding sheet.
Claims20
A sheet conveying apparatus, comprising:
- an abutment member having an abutment surface against which a leading edge of a sheet being conveyed abuts so as to correct a skew feed of the sheet;
- a holding member movable between a first position at which the holding member is located with respect to a locating portion provided in a main body of the sheet conveying apparatus and a second position at which the holding member is retracted from the first position;
- and
- a rotary shaft configured to support the abutment member and the holding member so that the holding member and the abutment member are movable integrally with each other,
- wherein the abutment member is configured to rotate about the rotary shaft so as to be movable between a located state in which a striking portion provided on the abutment member strikes against a regulating portion provided on the holding member to locate the abutment member with respect to the holding member and a separated state in which the striking portion and the regulating portion are separated from each other,
- wherein in a state in which the holding member is located in the first position and the abutment member is in the located state, the leading edge of the sheet abuts against the abutment surface to push the abutment surface to move the holding member from the first position to the second position while the abutment member is in the located state, and thereafter, when the leading edge of the sheet separates from the abutment surface, the abutment member is moved from the located state to the separated state, and
- wherein the holding member moves from the second position to the first position while the abutment member is in the separated state, and thereafter, when the holding member is located in the first position, the abutment member is moved from the separated state to the located state.
An image forming apparatus, comprising:
- an image forming portion configured to form an image on a sheet being conveyed;
- an abutment member having an abutment surface against which a leading edge of the sheet being conveyed abuts so as to correct a skew feed of the sheet;
- a holding member movable between a first position at which the holding member is located with respect to a locating portion provided in a main body of the image forming apparatus and a second position at which the holding member is retracted from the first position;
- and
- a rotary shaft configured to support the abutment member and the holding member so that the holding member and the abutment member are movable integrally with each other,
- wherein the abutment member is configured to rotate about the rotary shaft so as to be movable between a located state in which a striking portion provided on the abutment member strikes against a regulating portion provided on the holding member to locate the abutment member with respect to the holding member and a separated state in which the striking portion and the regulating portion are separated from each other,
- wherein in a state in which the holding member is located in the first position and the abutment member is in the located state, the leading edge of the sheet abuts against the abutment surface to push the abutment surface to move the holding member from the first position to the second position while the abutment member is in the located state, and thereafter, when the leading edge of the sheet separates from the abutment surface, the abutment member is moved from the located state to the separated state, and
- wherein the holding member moves from the second position to the first position while the abutment member is in the separated state, and thereafter, when the holding member is located in the first position, the abutment member is moved from the separated state to the located state.
Dependencies are inferred from the claim text.