Sheet transport apparatus and sheet processing apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorHideaki SUGIYAMA
Life of this patent
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Abstract
A sheet transport apparatus according to an embodiment includes a roller having a surface formed from an elastic material. The roller transports a sheet. A rotation mechanism rotated the roller around an axis of the roller. A twist mechanism selectively twists the roller with respect to the axis. When the roller is twisted and the rotation mechanism rotates the roller, a sheet transported by the roller is transported in a first direction perpendicular to the axis and in a second direction parallel to the axis. When the roller is not twisted and the rotation mechanism rotates the roller, a sheet transported by the roller is transported in the first direction and not in the second direction.
Claims20
A sheet transport apparatus comprising:
- a roller having a surface formed from an elastic material and configured to transport a sheet;
- a rotation mechanism configured to rotate the roller around an axis of the roller;
- and
- a twist mechanism configured to selectively twist the roller with respect to the axis so that:
- when the roller is twisted and the rotation mechanism rotates the roller, a sheet transported by the roller is transported in a first direction perpendicular to the axis and in a second direction parallel to the axis, and
- when the roller is not twisted and the rotation mechanism rotates the roller, a sheet transported by the roller is transported in the first direction and not in the second direction.
A sheet transport method comprising the steps of:
- providing a roller having a surface formed from an elastic material and configured to transports a sheet;
- twisting the surface of the roller with respect to the axis;
- and
- conveying a sheet by rotating the roller around an axis of the roller while the surface of the roller is twisted so that the sheet transported by the roller is transported in a first direction perpendicular to the axis and in a second direction parallel to the axis, wherein
- when the roller is rotated while the surface of the roller is not twisted, a sheet transported by the roller is transported in the first direction and not in the second direction.
A sheet processing apparatus comprising:
- a processing unit configured to perform a process on one or more sheets;
- and
- a sheet transport apparatus including at least:
- a roller having a surface formed from an elastic material and configured to transports a sheet,
- a rotation mechanism configured to rotate the roller around an axis of the roller, and
- a twist mechanism configured to selectively twist the roller with respect to the axis so that:
- when the roller is twisted and the rotation mechanism rotates the roller, a sheet transported by the roller is transported in a first direction perpendicular to the axis and in a second direction parallel to the axis, and
- when the roller is not twisted and the rotation mechanism rotates the roller, a sheet transported by the roller is transported in the first direction and not in the second direction.
Dependencies are inferred from the claim text.