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1. 发明授权

US5379996A Paper feeding device and paper curling correcting device 失效
标题翻译：送纸装置和纸张卷曲校正装置
公开(公告)号：US5379996A
公开(公告)日：1995-01-10
申请号：US165346
申请日：1993-12-13
申请人： Makoto Egi , Masao Otsuka , Hiroki Morishita , Masanobu Maeshima , Junya Sasabe , Kazushiro Taguchi
发明人： Makoto Egi , Masao Otsuka , Hiroki Morishita , Masanobu Maeshima , Junya Sasabe , Kazushiro Taguchi
IPC分类号： B65H5/06 , B65H3/52 , B65H5/36 , B65H29/70 , G03G15/00
CPC分类号： B65H3/5261 , B65H2557/35 , B65H2601/25
摘要： In a time period from the time point where the forward end of a paper sheet fed from a pair of paper separation rollers reaches a registration roller to the time point, where the registration roller is driven, when the load torque exerted on a forward roller is not less than second regulated torque, the transmission of power to the forward roller is released by a torque limiter provided for the forward roller. In this case, therefore, the force of paper feeding produced by the pair of paper separation rollers is regulated. Consequently, a suitable force of paper feeding can be applied to the paper sheet, thereby to make it possible to regulate the paper sheet straight in the direction of paper feeding as well as to prevent the paper sheet from continuing to be fed even if the amount of deflection of the paper sheet is saturated between the pair of paper separation rollers and the registration roller to prevent the paper sheet from being wrinkled.
摘要翻译：在从一对纸分离辊供给的纸张的前端到达定位辊到达定位辊驱动的时间点的时间段，当施加在前辊上的负载转矩为不小于第二调节扭矩，通过为前进辊设置的扭矩限制器释放向前滚筒的动力传递。因此，在这种情况下，限制了由一对分纸辊产生的纸张供给力。因此，可以将合适的纸张供给力施加到纸张上，从而可以在纸张供给方向上直接调节纸张，并且即使在纸张的数量纸张的偏转在一对分纸辊和定位辊之间饱和，以防止纸张起皱。

2. 发明授权

US5292115A Paper feeding device and paper curling correcting device 失效
标题翻译：送纸装置和纸张卷曲校正装置
公开(公告)号：US5292115A
公开(公告)日：1994-03-08
申请号：US943471
申请日：1992-09-11
申请人： Makoto Egi , Masao Otsuka , Morishita , Masanobu Maeshima , Junya Sasabe , Kazushiro Taguchi , Hiroshi Kubota , Kenji Oda , Masami Fuchi
发明人： Makoto Egi , Masao Otsuka , Morishita , Masanobu Maeshima , Junya Sasabe , Kazushiro Taguchi , Hiroshi Kubota , Kenji Oda , Masami Fuchi
IPC分类号： B65H3/52 , B65H3/46
CPC分类号： B65H3/5261 , B65H2557/35 , B65H2601/25
摘要： In a time period from the time point where the forward end of a paper sheet fed from a pair of paper separation rollers reaches a registration roller to the time point where the registration roller is driven, when the load torque exerted on a forward roller is not less than second regulated torque, the transmission of power to the forward roller is released by a torque limiter provided for the forward roller. In this case, therefore, the force of paper feeding produced by the pair of paper separation rollers is regulated. Consequently, a suitable force of paper feeding can be applied to the paper sheet, thereby to make it possible to regulate the paper sheet straight in the direction of paper feeding as well as to prevent the paper sheet from continuing to be fed even if the amount of deflection of the paper sheet is saturated between the pair of paper separation rollers and the registration roller to prevent the paper sheet from being wrinkled.
摘要翻译：在从一对纸分离辊供给的纸张的前端到达定位辊到达定位辊驱动的时间点的时间段内，当施加在前辊上的负载转矩不是小于第二调节扭矩，通过为前进辊设置的扭矩限制器释放向前滚筒的动力传递。因此，在这种情况下，限制了由一对分纸辊产生的纸张供给力。因此，可以将合适的纸张供给力施加到纸张上，从而可以在纸张供给方向上直接调节纸张，并且即使在纸张的数量纸张的偏转在一对分纸辊和定位辊之间饱和，以防止纸张起皱。

3. 发明授权

US5485247A Image forming apparatus including a paper feeding device having improved paper jam detection capability 失效
标题翻译：图像形成装置包括具有改进的卡纸检测能力的送纸装置
公开(公告)号：US5485247A
公开(公告)日：1996-01-16
申请号：US105929
申请日：1993-08-13
申请人： Hiroki Morishita , Hiroaki Nakamura , Makoto Eki , Yoshinori Makiura , Masao Otsuka , Kazushiro Taguchi , Keiji Ban
发明人： Hiroki Morishita , Hiroaki Nakamura , Makoto Eki , Yoshinori Makiura , Masao Otsuka , Kazushiro Taguchi , Keiji Ban
IPC分类号： B65H7/12 , B65H7/06 , G03G15/00 , G03G21/00
CPC分类号： G03G15/70 , G03G2215/00548
摘要： A paper feeding device is capable of judging that a paper jam occurs on the basis of output from a first paper detecting switch and a second paper detecting switch. These paper detecting switches are respectively provided ahead of and behind a registration roller which feeds paper sheets to an image forming section. If the first paper detecting switch is turned on when a predetermined time has elapsed since the registration roller started to feed a paper sheet to the image forming section, it is judged that a duplicate paper feeding state has occurred where a plurality of paper sheets are simultaneously fed. If the second paper detecting switch is turned off in the case where it is judged that a duplicate paper feeding state has occurred, it is judged that a paper jam has not occurred. The registration roller is stopped so it will later be ready to feed the subsequent paper sheet. Even when the paper sheets are simultaneously fed in a duplicate paper feeding state, it is not judged that a paper jam occurs as long as the paper sheets are fed one at a time to the image forming section. However, if both the first and second paper detecting switches remain on after the predetermined time, then it is judged that a paper jam has occurred.
摘要翻译：供纸装置能够基于来自第一纸张检测开关和第二纸张检测开关的输出来判断卡纸。这些纸张检测开关分别设置在将纸张馈送到图像形成部分的定位辊的前面和后面。如果从定位辊开始将纸张送入图像形成部分经过了预定时间之后第一个纸张检测开关打开，则判断在多个纸张同时发生复印纸进给状态喂。如果在判断出送纸状态已经发生的情况下第二纸张检测开关被关闭，则判断为没有发生卡纸。定位辊停止，以便随后准备送入后续的纸张。即使在复印纸进给状态下同时进给纸张的情况下，只要纸张一次一张地向图像形成部分供纸就不会发生卡纸。然而，如果第一和第二纸张检测开关在预定时间之后保持接通，则判断已经发生卡纸。

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