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US 8,783,677 B2Granted
Sheet feeding apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsAkira Matsushima, Takaaki Kawade
Life of this patent
Estimating the term…
Abstract
A sheet stacking portion is provided in a sheet storing portion in which sheets are stored. The sheet stacking portion is suspended by a wire which is wound up and wound off. The sheet stacking portion is raised and lowered by winding up and winding off the wire. Then, when the wire is in a slack state, a fixing portion fixes the sheet stacking portion to the sheet storing portion. When the wire is in a tensioned state, the fixing of the sheet stacking portion is released.
Claims11
A sheet feeding apparatus, comprising:
- a sheet storing portion in which sheets are stored;
- a sheet feeding portion configured to feed the sheets;
- a sheet stacking portion disposed in the sheet storing portion and suspended by a flexible member;
- a raising and lowering portion configured to raise the sheet stacking portion by winding up the flexible member;
- and
- a fixing portion configured to engage with the sheet storing portion to fix the sheet stacking portion to the sheet storing portion when the flexible member is in a slack state, and release an engagement of the fixing portion with the sheet storing portion to release a fixing of the sheet stacking portion when the flexible member is in a tensioned state.
3 more elements
A sheet feeding apparatus, comprising:
- a sheet storing portion in which sheets are stored;
- a sheet feeding portion configured to feed the sheets;
- a sheet stacking portion disposed in the sheet storing portion and connected to a flexible member, the sheet stacking portion being suspended by the flexible member, wherein the flexible member is in a slack state when the sheet stacking portion is located at a lowermost position of the sheet storing portion;
- a raising and lowering portion configured to raise the sheet stacking portion by winding up the flexible member, wherein the raising and lowering portion winds up the flexible member to raise the sheet stacking portion to put the sheet stacking portion into a state in which the sheets stacked on the sheet stacking portion are feedable by the sheet feeding portion;
- and
- a fixing portion configured to fix the sheet stacking portion to the sheet storing portion when the sheet stacking portion is located at the lowermost position and the flexible member is slacked, and release an engagement of the fixing portion with the sheet storing portion when the raising and lowering portion winds up the flexible member to raise the sheet stacking portion.
3 more elements
Dependencies are inferred from the claim text.