Sheet processing apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTomoyuki Watanabe, Kenichi Hayashi, Tsuyoshi Yamada, Yuji Morishige, Kazuo Onodera
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Abstract
A sheet processing apparatus includes a stacking device for stacking a sheet, a delivering device for delivering the sheet to the stacking device, and a pulling device for pulling in a direction opposite to a delivery direction the sheet delivered to the stacking device. The pulling device is structured to keep approximately constant a contract pressure exerted to the topmost sheet delivered on the stacking device, and the pulling device is formed in a tapered shape whose one end is narrower than the opposite end.
Claims9
A sheet processing apparatus comprising:
- stacking means for stacking a sheet;
- delivering means for delivering the sheet to the stacking means;
- and
- pulling means for pulling in a direction opposite to a delivery direction the sheet delivered to the stacking means,
- wherein the pulling means is structured to keep approximately constant a contract pressure exerted to the topmost sheet delivered on the temporarily stacking means, and the pulling means is formed in a tapered shape whose one end is narrower than the opposite end.
A sheet processing apparatus comprising:
- stacking means for stacking a sheet;
- delivering means for delivering the sheet to the stacking means;
- and
- pulling means for pulling in a direction opposite to a delivery direction the sheet delivered to the stacking means;
- and
- a rocking guide rotatively supporting the pulling means, capable of rocking in directions for coming closer to and going away from the stacking means,
- wherein a contract area of the pulling means to the topmost sheet is kept constant according to changes of a height of the topmost sheet delivered on the stacking means.
Dependencies are inferred from the claim text.