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US 9,555,998 B2Granted
Sheet processing device, image forming system, and sheet processing method
AssigneeRicoh Company, Ltd.
InventorsTakahiro Watanabe, Tomohiro Furuhashi, Michitaka Suzuki, Tomomichi Hoshino, Akira Kunieda, Yuji Suzuki, Satoshi Saito, Koki Sakano
Life of this patent
Estimating the term…
Abstract
A sheet processing device includes: a folder that forms a plurality of folds on a sheet such that a fold part and a part with no fold of the sheet overlap with each other; a conveyance unit that conveys the sheen on which the folds are formed by the folder; and a pressing part that presses the fold part of the conveyed sheet in which the fold part and the part with no fold overlap with each other, from a side on which the fold part is located.
Claims18
A sheet processing device, comprising:
- a folder configured to form a plurality of folds on a sheet such that a fold part and a part with no fold of the sheet overlap with each other;
- a conveyance unit configured to convey the sheet on which the folds are formed by the folder;
- a pressing part configured to press the fold part of the conveyed sheet in which the fold part and the part with no fold overlap with each other, from a side on which the fold part is located;
- a rotation drive braking part configured to generate a driving force for rotating the pressing part and a braking force for stopping the rotation of the pressing part;
- and
- a driving force blocking part configured to transmit only a driving force for rotating the pressing part in a specific rotational direction out of the driving force generated by the rotation drive braking part, to the pressing part, and configured to block a driving force for rotating the pressing part in a direction opposite to the specific rotational direction, from the pressing part,
- wherein the pressing part is configured to rotate about an axis along a direction that is orthogonal to a conveying direction of the sheet and parallel to a surface of the sheet to press the fold part on the sheet conveyed from the folder in a folded state.
4 more elements
A sheet processing device, comprising:
- a folder configured to form a plurality of folds on a sheet such that a fold part and a part with no fold of the sheet overlap with each other;
- a conveyance unit configured to convey the sheet on which the folds are formed by the folder;
- and
- a pressing part configured to press the fold part of the conveyed sheet in which the fold part and the part with no fold overlap with each other, from a side on which the fold part is located,
- wherein the pressing part includes a plurality of pressing members arranged in a direction parallel to the axis and to have certain angle differences from each other in a rotational direction using the axis as a rotation axis, and configured to rotate about the axis serving as the rotation axis to press the fold part on the sheet against a sheet supporting part at different timings with the plurality of pressing members.
2 more elements
A sheet processing method comprising:
- forming a plurality of folds on a sheet such that a fold part and a part with no fold of the sheet overlap with each other;
- conveying the sheet on which the folds are formed;
- pressing, via a pressing part, the fold part of the conveyed sheet in which the fold part and the part with no fold overlap with each other, from a side on which the fold part is located;
- generating a driving force for rotating the pressing part and a braking force for stopping the rotation of the pressing part;
- and
- transmitting only a driving force for rotating the pressing part in a specific rotational direction out of the driving force to the pressing part, and configured to block a driving force for rotating the pressing part in a direction opposite to the specific rotational direction, from the pressing part,
- wherein the pressing part is configured to rotate about an axis along a direction that is orthogonal to a conveying direction of the sheet and parallel to a surface of the sheet to press the fold part on the sheet conveyed from the folder in a folded state.
4 more elements
Dependencies are inferred from the claim text.