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1. 发明授权

US6123329A Paper feeder and paper tray elevation device therefor 有权
标题翻译：供纸盒和纸盒升降装置
公开(公告)号：US6123329A
公开(公告)日：2000-09-26
申请号：US151351
申请日：1998-09-10
申请人： Mitsuo Sato , Hidetoshi Aizawa , Kenji Endo , Naoki Ashikaya , Kiyohiko Yakuwa , Masayuki Shima
发明人： Mitsuo Sato , Hidetoshi Aizawa , Kenji Endo , Naoki Ashikaya , Kiyohiko Yakuwa , Masayuki Shima
IPC分类号： B41L13/04 , B65H1/14 , B65H1/26 , B65H1/28 , B65H1/30 , B65H3/44 , G03G15/00
CPC分类号： B65H1/266 , B65H1/14 , B65H3/446 , B65H2801/21 , G03G2215/00447
摘要： A paper feeder for feeding papers to an image forming apparatus and a paper tray elevation device therefore are disclosed. A first tray is movable up and down with a plurality of papers stacked thereon. A paper feed member feeds the papers from the first tray in a preselected direction of paper feed. A second tray is positioned beside the first tray in substantially the horizontal direction and movable up and down with a plurality of papers stacked thereon. A shifting device shifts the entire paper stack from the second tray to the first tray. A horizontal elevating mechanism elevates the first tray while maintaining it in substantially the horizontal position. An interlocking mechanism at least elevates, when papers of greater in size than the papers to be stacked on the first or second tray are stacked over the first and second trays in a single stack, the second tray in interlocked relation to the elevation of the first tray while maintaining the second tray in substantially the horizontal position. The papers of greater size are capable of being stacked over the first and second trays and fed by the paper feed member.
摘要翻译：因此，公开了一种用于将纸张馈送到图像形成装置和纸盘升降装置的供纸器。第一托盘可堆叠在其上的多个纸张上下移动。供纸构件沿着预选的进纸方向从第一托盘供纸。第二托盘位于第一托盘的大致水平方向旁边，并且可堆叠在其上的多个纸张上下移动。换档装置将整个纸叠从第二托盘移动到第一托盘。水平升降机构使第一托盘升起，同时使其保持在大致水平位置。当互相重叠的纸张尺寸大于堆叠在第一或第二托盘上的纸张在单堆叠中堆叠在第一和第二托盘上时，互锁机构至少升高，第二托盘与第一托盘的高度互锁托盘，同时将第二托盘保持在基本上水平的位置。较大尺寸的纸能够堆叠在第一和第二托盘上并由进纸构件供给。

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