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US 5,992,839 AGranted
Sheet stacking apparatus
AssigneeCanon Kabushiki Kaisha
InventorHideaki Kosasa
Life of this patent
Estimating the term…
Abstract
The present invention provides a sheet aligning apparatus which comprises a containing tray for containing sheets, a sheet storing device disposed above a sheet bundle contained in the containing tray and revolved between a first position to store the sheets in the sheet storing device and a second position to shift the stored sheets to the containing tray by the sheet storing device, and a posture maintaining device for rotating the sheet storing device when the sheet storing device is revolved, so that a posture of the sheet storing device in the first position becomes substantially the same as that in the second position.
Claims24
A sheet stacking apparatus, comprising:
- a containing tray for containing sheets;
- a sheet storing means disposed above a sheet bundle contained in said containing tray and revolved between a first position to store the sheets in said sheet storing means, and a second position to shift the stored sheets to said containing tray;
- and
- a posture maintaining means for rotating said sheet storing means when said sheet storing means is revolved, so that a posture of said sheet storing means in said first position becomes substantially the same as that in said second position.
1 more element
A sheet stacking apparatus, comprising:
- a containing tray for containing sheets;
- a sheet storing means disposed above a sheet bundle contained in said containing tray and movable between a first position to store the sheets in said sheet storing means, and a second position to shift the stored sheets to said containing tray;
- and
- a posture maintaining means for shifting said sheet storing means when said sheet storing means is moved, so that a posture of said sheet storing means in said first position becomes substantially the same as that in said second position.
1 more element
A sheet stacking apparatus, comprising:
- a containing tray for containing sheets;
- a sheet feed-out means for feeding out the sheets on said containing means;
- a sheet storing means disposed above a sheet bundle contained in said containing tray and movable between a first position to store the sheets in said sheet storing means, and a second position to shift the stored sheets to said containing tray;
- and
- a posture maintaining means for shifting said sheet storing means when said sheet storing means is moved, so that a posture of said sheet storing means in said first position becomes substantially the same as that in said second position,
- wherein after said sheet storing means receives at least one sheet at said first position, it is slightly lifted and then the sheet is fed-out by said sheet feed-out means.
3 more elements
A sheet aligning apparatus, comprising:
- a containing tray for containing sheets;
- a sheet storing means disposed above a sheet bundle contained in said containing tray and movable between a first position to store the sheets in said sheet storing means, and a second position to shift the stored sheets to said containing tray;
- and
- a posture maintaining means for shifting said sheet storing means when said sheet storing means is moved, so that a posture of said sheet storing means in said first position becomes substantially the same as that in said second position,
- wherein after said sheet storing means receives at least one sheet at said first position, it is slightly lifted so that a tip end of the sheet becomes higher than a trail end of the sheet.
2 more elements
A sheet stacking apparatus, comprising:
- a containing tray for containing sheets;
- a sheet thickness information means provided on said containing tray;
- a sheet storing means disposed above a sheet bundle contained in said containing tray and movable between a first position to store the sheets in said sheet storing means and a second position to shift the stored sheets to said containing tray;
- and
- a posture maintaining means for shifting said sheet storing means when said sheet storing means is moved, so that a posture of said sheet storing means in said first position becomes substantially the same as that in said second position,
- wherein said first position is set on the basis of information from said information means.
3 more elements
A bookbinding apparatus, comprising:
- a containing tray for containing sheets;
- a sheet storing means disposed above a sheet bundle contained in said containing tray and revolved between a first position to store the sheets in said sheet storing means, and a second position to shift the stored sheets onto said containing tray;
- a posture maintaining means for rotating said sheet storing means when said sheet storing means is revolved, so that a posture of said sheet storing means in said first position becomes substantially the same as that in said second position;
- a binding means for binding the sheet bundle;
- and
- transport means for transporting the sheet bundle contained in said containing tray to said binding means.
3 more elements
An image forming apparatus, comprising:
- an image forming means;
- a containing tray for containing sheets on which images have been formed;
- a sheet storing means disposed above a sheet bundle contained in said containing tray and revolved between a first position to store the sheets in said sheet storing means, and a second position to shift the stored sheets onto said containing tray;
- a posture maintaining means for rotating said sheet storing means when said sheet storing means is revolved, so that a posture of said sheet storing means in said first position becomes substantially the same as that in said second position;
- and
- supply means for separating and supplying the sheets in the sheet bundle contained in said containing tray one by one.
3 more elements
Dependencies are inferred from the claim text.