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US 9,676,572 B2Granted
Sheet conveying apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorMiho Kaiga
Life of this patent
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Abstract
A sheet conveying apparatus includes a first rotator pair, a second rotator pair provided downstream, in a sheet conveying direction, of the first rotator pair, and a moving member having an abutment portion. the first rotator pair, the second rotator pair and the moving member are configured such that a rear end of the sheet does not pass on a moving trajectory of the abutment portion when the moving member moves from a passage state in which the sheet is allowed to pass through the abutment portion as the abutment portion is pressed by the sheet conveyed by the first rotator pair to an abutment state in which the abutment portion protrudes into a sheet conveying path.
Claims12
A sheet conveying apparatus comprising:
- a first rotator pair configured to convey a sheet;
- a second rotator pair provided downstream, in a sheet conveying direction, of the first rotator pair;
- and
- a rotating member including;
- a first protruding portion against which a front end of a first sheet conveyed from the first rotator pair abuts in a state in which the rotating member stops at a first abutment position where the first protruding portion protrudes into a sheet conveying path upstream, in the sheet conveying direction, of a nip portion of the second rotator pair;
- and
- a second protruding portion against which a front end of a second sheet conveyed from the first rotator pair in succession to the first sheet abuts in a state in which the rotating member stops at a second abutment position where the second protruding portion protrudes into the sheet conveying path upstream, in the sheet conveying direction, of the nip portion of the second rotator pair, the rotating member being configured to turn in a predetermined direction from the first abutment position to the second abutment position through a passage state in which the first sheet is allowed to pass the first protruding portion, if the first protruding portion is pushed by the first sheet,
- wherein the rotating member is configured to turn to a standby position and standby at the second abutment position before a rear end of the first sheet reaches to the nip portion of the second rotator pair, and
- wherein the second rotator pair is arranged such that a nip line, which is a tangent line of the nip portion, of the second rotator pair does not intersect with the first protruding portion at the first abutment position and the second protruding portion at the second abutment position when viewed from a direction of a rotation axis of the second rotator pair.
6 more elements
A sheet conveying apparatus comprising:
- a first rotator pair configured to convey a sheet;
- a second rotator pair provided downstream, in a sheet conveying direction, of the first rotator pair;
- and
- a rotating member including:
- a first protruding portion against which a front end of a first sheet conveyed from the first rotator pair abuts in a state in which the rotating member stops at a first abutment position where the first protruding portion protrudes into a sheet conveying path upstream, in the sheet conveying direction, of a nip portion of the second rotator pair;
- and
- a second protruding portion against which a front end of a second sheet conveyed from the first rotator pair in succession to the first sheet abuts in a state in which the rotating member stop at a second abutment position where the second protruding portion protrudes into the sheet conveying path upstream, in the sheet conveying direction, of the nip portion of the second rotator pair, the rotating member being configured to turn in a predetermined direction from the first abutment position to the second abutment position through a passage state in which the first sheet is allowed to pass the first protruding portion, if the first protruding portion is pushed by the first sheet,
- wherein the rotating member is configured to turn to a standby position and standby at the second abutment position before a rear end of the first sheet reaches to the nip portion of the second rotator pair,
- wherein the second rotator pair includes a first rotator provided on the same side with the rotating member with respect to the nip portion of the second rotator pair, and a second rotator disposed opposite to the first rotator, and
- wherein a nip line, which is a tangent line of the nip portion, of the second rotator pair is inclined in a direction approaching to a side of the first rotator from a side of the second rotator as the nip line advances upstream to downstream in the sheet conveying direction when viewed from a direction of a rotation axis of the second rotator pair.
7 more elements
A sheet conveying apparatus comprising:
- a first rotator pair configured to convey a sheet;
- a second rotator pair provided downstream, in a sheet conveying direction, of the first rotator pair;
- a guide portion curvedly forming the sheet conveying path between the first and second rotator pairs;
- and
- a rotating member including:
- a first protruding portion against which a front end of a first sheet conveyed from the first rotator pair abuts in a state in which the rotating member stops at a first abutment position where the first protruding portion protrudes into a sheet conveying path upstream, in the sheet conveying direction, of a nip portion of the second rotator pair;
- and
- a second protruding portion against which a front end of a second sheet conveyed from the first rotator pair in succession to the first sheet abuts in a state in which the rotating member stops at a second abutment position where the second protruding portion protrudes into the sheet conveying path upstream, in the sheet conveying direction, of the nip portion of the second rotator pair, the rotating member being configured to turn in a predetermined direction from the first abutment position to the second abutment position through a passage state in which the first sheet is allowed to pass the first protruding portion, if the first protruding portion is pushed by the first sheet,
- wherein the rotating member is configured to turn to a standby position and standby at the second abutment position before a rear end of the first sheet reaches to the nip portion of the second rotator pair,
- wherein the second rotator pair includes a first rotator provided on the same side with the rotating member with respect to the nip portion of the second rotator pair, and a second rotator disposed opposite to the first rotator, and
- wherein the guide portion is configured to curve such that a radius of a curvature of a side of the first rotator is larger than that of a side of the second rotator.
8 more elements
Dependencies are inferred from the claim text.