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公开(公告)号：US11472649B2
公开(公告)日：2022-10-18
申请号：US16667787
申请日：2019-10-29
申请人： PFU LIMITED
发明人： Takayuki Umi , Shigeharu Okano
摘要： A medium conveying apparatus includes a medium tray, a feed roller to feed a medium placed on the medium tray, a brake roller facing the feed roller, a pressing member to press the brake roller to the feed roller side, a processor to detect media multi-feed, and control the feed roller and the brake roller in such a way that the medium is reset to the medium tray when the media multi-feed of media is detected. The processor controls the pressing member in such a way that a pressing force of the brake roller when resetting the medium to the medium tray is greater than a pressing force of the brake roller when feeding the medium.
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公开(公告)号：US20220281703A1
公开(公告)日：2022-09-08
申请号：US17674775
申请日：2022-02-17
申请人： PFU Limited
发明人： Masaaki SAKAI
摘要： A medium conveying apparatus includes a conveying roller to convey a medium, an overlap detection sensor, a processor to detect an overlap portion in which it is determined that an overlap has occurred on the medium based on a detection output by the overlap detection sensor for the medium conveyed by the conveying roller, calculate an overlap length where the overlap portion is continuous based on a detection result of the overlap portion, determine whether a multi-feed has occurred based on the overlap length, and execute an abnormal processing for the multi-feed based on a determination result of the multi-feed. The processor determines that a first overlap portion and a second overlap portion are continuous when a distance between the first overlap portion and the second overlap portion is within a predetermined distance in calculating the overlap length.
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公开(公告)号：US20220258996A1
公开(公告)日：2022-08-18
申请号：US17578101
申请日：2022-01-18
申请人： PFU LIMITED
发明人： Masaaki Sakai
摘要： A medium conveying apparatus includes a conveying roller to convey a medium, and a processor to detect transmission information of an ultrasonic wave transmitted through the medium or thickness information of the medium at a plurality of positions in the conveyed medium, calculate a size of an area in which the transmission information or the thickness information is within a predetermined range in the conveyed medium, determine whether a multi-feed of the medium has occurred, by comparing a value based on the transmission information or the thickness information with a threshold, and execute an abnormality processing when it is determined that the multi-feed of the medium has occurred. The processor changes the threshold according to the size.
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公开(公告)号：US20220204294A1
公开(公告)日：2022-06-30
申请号：US17558739
申请日：2021-12-22
发明人： Seiji EGUCHI , Takayuki SHIOTA
摘要： A medium feeding apparatus includes a medium mounting section forming a mounting face for mounting a medium thereon, a feeding roller configured to feed a lowermost medium among mediums mounted on the medium mounting section in a feeding direction, and a movement detection unit configured to output information related to movement of the medium in a direction along the mounting face, wherein based on detection information detected by a medium height detection unit that outputs information related to a height of the medium mounted on the mounting section from the mounting face in abnormality detection processing, when the height is less than a first threshold value, a control unit continues feeding the medium regardless of detection information detected by the movement detection unit or without obtaining detection information detected by the movement detection unit.
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公开(公告)号：US11339018B2
公开(公告)日：2022-05-24
申请号：US16667517
申请日：2019-10-29
申请人： PFU LIMITED
发明人： Shigeharu Okano , Takayuki Umi
摘要： A medium conveying apparatus includes a feed roller, a brake roller, a motor to generate a driving force, a first transmission mechanism to transmit the driving force to the brake roller through a first torque limiter, to rotate the brake roller in a direction opposite to a medium feeding direction, a second transmission mechanism to transmit the driving force to the brake roller through a second torque limiter, bypassing the first torque limiter, to rotate the brake roller in the direction opposite to the medium feeding direction, and a processor to detect media multi-feed, and perform control in such a way as to transmit the driving force to the brake roller by the second transmission mechanism and also cause the feed roller to be driven to rotate in the direction opposite to the medium feeding direction by the brake roller, when the media multi-feed is detected.
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公开(公告)号：US20220135356A1
公开(公告)日：2022-05-05
申请号：US17414904
申请日：2020-06-11
发明人： Sungchang Hur , Uichoon Lee , Myung Soo Jeong , Jae Wuk Lee , Wootan Son
摘要： An example print medium supplying apparatus includes a print medium transporting device to pick up a print medium loaded in a loading portion and transport the picked-up print medium, a print medium alignment portion to align a leading end of the transported print medium, a first sensor to sense the print medium that passes through a feed roller of the print medium transporting device, and a processor to, based on a measured value with respect to the print medium sensed by the first sensor and a multi-feeding determination reference value corresponding to a sheet of the print medium, detect multi-feeding of the print medium and process the detected multi-feeding by controlling the print medium transporting device and the print medium alignment portion.
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公开(公告)号：US20220135355A1
公开(公告)日：2022-05-05
申请号：US17507089
申请日：2021-10-21
发明人： Hiroki FUWA
摘要： A conveying apparatus includes a conveyor and a conveyed object receptor. The conveyor includes a conveyance surface facing downward and configured to convey a conveyed object having a sheet-like shape. The conveyed object receptor is arranged below the conveyor and configured to receive the conveyed object having fallen from the conveyor.
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公开(公告)号：US11319174B2
公开(公告)日：2022-05-03
申请号：US17076701
申请日：2020-10-21
发明人： John W. Brown , Edward F. Houston , Juan A. Roman , Leung M. Shiu , Riley H. Mayhall , Thomas A. Hillerich, Jr. , Jacob L. Timm , Matthew G. Good , William P. McConnell , Robert L. Schlender , Christopher D. Austin
IPC分类号： B65H3/12 , B65H5/24 , B65H3/46 , B65H5/22 , B65H7/12 , B65G47/06 , B65G47/28 , B65G47/46 , B65G59/04
摘要： Embodiments of a system and method for shingulating, singulating, and synchronizing articles in an article feeder system are disclosed. The article feeder system may include a shingulating device configured to receive a stack of articles and to produce a positively lapped stack of articles, a plurality of picking devices configured to pick one or more articles from the positively lapped stack of articles and to produce one or more singulated articles, and one or more synchronization devices configured to deliver the one or more singulated articles to one or more sorter windows.
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公开(公告)号：US11274005B2
公开(公告)日：2022-03-15
申请号：US15930271
申请日：2020-05-12
发明人： Tadaharu Kusumi
摘要： A sheet conveyance device includes a transmitter circuit, a receiver circuit, an integrator circuit which performs charging of electric charge outputted from the transmitter circuit and outputs a judgment voltage, a drive circuit, and a control circuit. The drive circuit feeds a drive signal to the transmitter circuit. At a lapse of a wait time after changing a level of a transmission instruction signal to a level instructing to feed the drive signal to the transmitter circuit, the control circuit makes the integrator circuit start to perform charging. When adjusting the wait time, the control circuit performs processing for adjustment a plurality of times. The control circuit makes the wait time different in each execution of the processing for adjustment. The control circuit determines a new wait time based on a magnitude of the judgment voltage recognized in each execution of the processing for adjustment.
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公开(公告)号：US11186457B2
公开(公告)日：2021-11-30
申请号：US16834160
申请日：2020-03-30
申请人： Konica Minolta Inc.
摘要： Provided is a sheet conveyance apparatus armored with a housing, the sheet conveyance apparatus includes: a sheet conveyor that feeds a sheet to a downstream side in a direction of conveyance; a conveyance guide that guides the sheet to be conveyed; an ultrasonic sensor that detects the sheet guided by the conveyance guide; and a shield member that is conductive, wherein the ultrasonic sensor includes: a transmitter that transmits an ultrasonic wave having a predetermined frequency; and a receiver that receives the ultrasonic wave, the transmitter and the receiver are arranged along the conveyance guide, and the shield member is disposed between the housing and the receiver in a sheet-face perpendicular direction at an ultrasonic-irradiation position of the sheet being conveyed, the shield member covering an entirety of the receiver in plan view in the sheet-face perpendicular direction.
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