发明名称 SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS
摘要 A sheet feeding apparatus includes a sheet stacking portion for stacking a sheet, a sheet feeding roller for feeding the sheet stacked on said sheet stacking portion, a supporting member, rotatably supported by a base member, for rotatably supporting said sheet feeding roller, and a spring stretched between the base member and an acting portion of the supporting member. The acting portion of the supporting member is located downward with respect to a rotation center of the supporting member when a sheet stacking amount is small, and the acting portion of the supporting member is located upward with respect to a rotation center of the supporting member when a sheet stacking amount is large.
申请公布号 US2011241279(A1) 申请公布日期 2011.10.06
申请号 US201113159612 申请日期 2011.06.14
申请人 CANON KABUSHIKI KAISHA 发明人 SONODA SHINYA;IZUMI MASATO
分类号 B65H5/26;B65H1/12;B65H3/06 主分类号 B65H5/26
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