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1. 发明申请

US20180327203A1 SHEET TRANSPORT WITH ONE-WAY CLUTCH TO DISENGAGE SEPARATION SHAFT 审中-公开
公开(公告)号：US20180327203A1
公开(公告)日：2018-11-15
申请号：US16044925
申请日：2018-07-25
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： Alexander M. Nameroff , Devin Scott Uehling
IPC分类号： B65H3/52
CPC分类号： B65H3/52 , B65H3/0669 , B65H3/5207 , B65H3/5215 , B65H3/5246 , B65H3/5253 , B65H3/5261 , B65H83/025 , B65H2403/72 , B65H2403/942
摘要： In one example in accordance with the present disclosure, a sheet transport device is described. The sheet transport device includes a pickup roller to insert a sheet into a sheet path. A pair of separation rollers of the sheet transportation device form a nip that advances the sheet along the sheet path. A first separation shaft on which a first separation roller is disposed rotates in a first direction as the sheet is advanced and a second separation shaft on which a second separation roller is disposed also rotates in the first direction as the sheet is advanced. The second separation roller is driven in a second direction via a torque limiter. A motor rotates the shafts. A one-way clutch is disposed on the second separation shaft to disengage the second separation shaft from the motor when the motor is operating in a reverse mode.

2. 发明授权

US10053314B2 Sheet feeding apparatus and image reading apparatus 有权
公开(公告)号：US10053314B2
公开(公告)日：2018-08-21
申请号：US15426326
申请日：2017-02-07
申请人： CANON KABUSHIKI KAISHA
发明人： Masaki Omori
IPC分类号： B65H3/06 , B65H3/04
CPC分类号： B65H3/0676 , B65H3/047 , B65H3/0669 , B65H3/5261 , B65H7/02 , B65H9/006 , B65H2403/21 , B65H2403/72 , B65H2403/942 , B65H2404/1114 , B65H2404/1122 , B65H2513/412 , B65H2513/53 , B65H2701/1311 , B65H2801/06 , B65H2801/39 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A sheet feeding apparatus includes a first rotary member to feed a sheet supported on a sheet supporter, a second rotary member to feed the sheet with a feeding force weaker than the first rotary member, and a third rotary member in contact with a separation member to separate the sheets fed by the first rotary member one by one. A drive transmission switches between a first drive transmission state in which a driving force from a motor to the first rotary member and the third rotary member is transmitted while the driving force from the motor to a second rotary member is cut off, and a second drive transmission state in which the driving force from the motor to the second rotary member is transmitted while the driving force from the motor to the first rotary member and the third rotary member is cut off.

3. 发明申请

US20180201457A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180201457A1
公开(公告)日：2018-07-19
申请号：US15699111
申请日：2017-09-08
申请人： FUJI XEROX CO., LTD.
发明人： Daisuke TANAKA
IPC分类号： B65H3/52 , B65H5/06 , B65H3/06
CPC分类号： B65H3/5261 , B41J2/01 , B41J2/125 , B41J2/13 , B41J2002/012 , B65H3/0684 , B65H5/062 , B65H5/068 , B65H2403/732 , B65H2513/108
摘要： An image forming apparatus includes image forming units forming images, a movable body moving along a path extending in a direction in which the image forming units are arranged while the images are sequentially formed on the movable body or on a recording material transported by the movable body so as to be superposed with one another, a contact and separation unit moving to a contact position at which the contact and separation unit is in contact with the movable body and to a separation position at which the contact and separation unit is separated from the movable body and changing a load applied to the moving movable body as a position of the contact and separation unit is changed, and a change unit changing the load in a manner opposite to a change in the load upon a change in the position of the contact and separation unit.

4. 发明申请

US20180127223A1 SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SHEET FEEDING DEVICE 审中-公开
公开(公告)号：US20180127223A1
公开(公告)日：2018-05-10
申请号：US15783205
申请日：2017-10-13
申请人： Hirofumi HORITA , Jumpei AOYAMA
发明人： Hirofumi HORITA , Jumpei AOYAMA
IPC分类号： B65H3/06 , B65H3/68
CPC分类号： B65H3/0638 , B65H1/04 , B65H1/12 , B65H3/0669 , B65H3/0684 , B65H3/5215 , B65H3/5261 , B65H3/68 , B65H9/166 , B65H2402/31 , B65H2402/515 , B65H2402/521 , B65H2402/52211 , B65H2402/531 , B65H2404/13171 , B65H2404/13421 , B65H2404/15212 , B65H2405/325 , B65H2601/324 , B65H2801/09
摘要： A sheet feeding device, which is included in an image forming apparatus, includes a roller detachably attached to the image forming apparatus and configured to feed a sheet in a sheet conveying direction, a shaft configured to engage with the roller and transmit a driving force to the roller, a movable body configured to rotate in a direction of rotational axis and includes a holding portion configured to engage with the second engaging portion of the roller and rotatably hold the roller and a guide configured to guide attachment of the second engaging portion of the roller to the holding portion, and a biasing body configured to apply a biasing force and bias the movable body from a drive receiving side to a drive transmitting side.

5. 发明授权

US09944480B2 Image forming apparatus and feeding device 有权
公开(公告)号：US09944480B2
公开(公告)日：2018-04-17
申请号：US15453647
申请日：2017-03-08
申请人： CANON KABUSHIKI KAISHA
发明人： Yuya Hirano , Fumiaki Mizuno , Yuta Hojo , Atsushi Kawarago
IPC分类号： B65H3/06 , B65H7/12 , B65H3/52 , B65H3/02 , B65H3/46 , B65H7/20 , B65H7/06
CPC分类号： B65H7/12 , B65H1/266 , B65H3/02 , B65H3/06 , B65H3/46 , B65H3/52 , B65H3/5261 , B65H7/06 , B65H7/125 , B65H7/20 , B65H2511/11 , B65H2511/20 , B65H2511/52 , B65H2513/50 , B65H2801/06 , B65H2220/01 , B65H2220/03 , B65H2220/04
摘要： An image forming apparatus includes an accommodation unit, feeding, conveying, and separating members, and detecting, control, image forming, and regulating units. The conveying member conveys a fed recording material. The separating member forms a nip and separates recording materials. The detecting unit detects that the recording material has been fed to the nip. The feeding member starts feeding an accommodated recording material and, where a recording material is fed to the nip, causes the feeding to be finished. An image is formed on a fed recording material. The regulating unit regulates an end on an upstream side. The control unit measures a period from a recording material feeding to detection that a recording material is fed to the nip. Based on the measured period, information is output indicating that a position of the regulating unit is deviated from a position according to a size of the accommodated recording materials.

6. 发明授权

US09885994B2 Sheet conveyance apparatus, image forming apparatus, and image forming system 有权
公开(公告)号：US09885994B2
公开(公告)日：2018-02-06
申请号：US15188778
申请日：2016-06-21
申请人： KONICA MINOLTA, INC.
发明人： Minoru Asakawa
IPC分类号： G03G15/00 , G03G21/00 , G03G21/14 , B65H33/04 , B65H1/00 , B65H39/10 , B65H3/44 , B65H3/52 , B65H7/06 , B65H7/20
CPC分类号： G03G15/70 , B65H1/00 , B65H3/44 , B65H3/5261 , B65H7/06 , B65H7/20 , B65H39/10 , B65H2301/4318 , B65H2405/332 , B65H2511/414 , B65H2511/51 , B65H2511/528 , B65H2513/42 , G03G15/5012 , G03G15/6514 , G03G15/6538 , G03G15/655 , G03G2215/00552 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A sheet conveyance apparatus which conveys sheets fed from a first sheet feeding unit and sheets fed from a second sheet feeding unit to a merging point, inserts the sheets fed from the first sheet feeding unit into the sheets fed from the second sheet feeding unit in a predetermined order at the merging point, and discharges the sheets fed from the first sheet feeding unit and the sheets fed from the second sheet feeding unit to a downstream side includes: a jam detecting unit configured to detect a jam of a sheet in the first sheet feeding unit; and a control unit configured to newly feed sheets which are before the predetermined order, in which a sheet causing the jam is supposed to be inserted, and have not been fed from the second sheet feeding unit, and convey the newly fed sheets to the downstream side.

7. 发明授权

US09840384B2 Sheet separation mechanism with annular member and sheet-fed scanning apparatus using such mechanism 有权
公开(公告)号：US09840384B2
公开(公告)日：2017-12-12
申请号：US15340222
申请日：2016-11-01
申请人： AVISION INC.
发明人： Shao-Lan Sheng , Chi-Yao Chen , Chin-Chu Chiu
IPC分类号： B65H3/52 , B65H3/06 , H04N1/00
CPC分类号： B65H3/0684 , B65H3/063 , B65H3/5261 , B65H3/5284 , B65H2404/133 , B65H2404/694 , H04N1/00602 , H04N1/00628 , H04N1/00795 , H04N2201/0063 , H04N2201/0081 , H04N2201/0094
摘要： A sheet separation mechanism comprises a separation roller set and a reverse roller set rotating in the same rotation direction. The reverse roller set presses sheets onto the separation roller set to stop one or multiple ones of the sheets close to the reverse roller set from passing through a nip between the separation and reverse roller sets, and allow the sheet directly contacting the separation roller set to pass through the nip. The reverse roller set comprises a shaft, and two reverse rollers and an annular member all mounted on the shaft, which rotates the reverse rollers. The annular member, disposed between the two reverse rollers, is rotatable relatively to the shaft and movable relatively to the shaft in a radial direction of the shaft. The annular member and the reverse rollers commonly press the sheets. A sheet-fed scanning apparatus using the sheet separation mechanism is also provided.

8. 发明申请

US20170240364A1 SHEET FEEDING APPARATUS AND IMAGE READING APPARATUS 审中-公开
公开(公告)号：US20170240364A1
公开(公告)日：2017-08-24
申请号：US15426326
申请日：2017-02-07
申请人： CANON KABUSHIKI KAISHA
发明人： Masaki Omori
IPC分类号： B65H3/06 , B65H3/04
CPC分类号： B65H3/0676 , B65H3/047 , B65H3/0669 , B65H3/5261 , B65H7/02 , B65H9/006 , B65H2403/21 , B65H2403/72 , B65H2403/942 , B65H2404/1114 , B65H2404/1122 , B65H2513/412 , B65H2513/53 , B65H2701/1311 , B65H2801/06 , B65H2801/39 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A sheet feeding apparatus includes a document tray configured to support a document, a pickup roller configured to feed the sheet supported on the document tray, a separation roller pair configured to separate the sheets fed by the pickup roller one by one, a paddle arranged between the pickup roller and the separation roller pair in a sheet feeding direction and feeding the sheet supported on the document tray, and a drive motor capable of driving the pickup roller, the separation roller pair and the paddle. The paddle feeds the sheet supported on the document tray with a conveyance force weaker than the pickup roller.

9. 发明申请

US20170144849A1 SHEET SEPARATION MECHANISM WITH ANNULAR MEMBER AND SHEET-FED SCANNING APPARATUS USING SUCH MECHANISM 有权
公开(公告)号：US20170144849A1
公开(公告)日：2017-05-25
申请号：US15340222
申请日：2016-11-01
申请人： AVISION INC.
发明人： SHAO-LAN SHENG , CHI-YAO CHEN , CHIN-CHU CHIU
IPC分类号： B65H3/06 , H04N1/00
CPC分类号： B65H3/0684 , B65H3/063 , B65H3/5261 , B65H3/5284 , B65H2404/133 , B65H2404/694 , H04N1/00602 , H04N1/00628 , H04N1/00795 , H04N2201/0063 , H04N2201/0081 , H04N2201/0094
摘要： A sheet separation mechanism comprises a separation roller set and a reverse roller set rotating in the same rotation direction. The reverse roller set presses sheets onto the separation roller set to stop one or multiple ones of the sheets close to the reverse roller set from passing through a nip between the separation and reverse roller sets, and allow the sheet directly contacting the separation roller set to pass through the nip. The reverse roller set comprises a shaft, and two reverse rollers and an annular member all mounted on the shaft, which rotates the reverse rollers. The annular member, disposed between the two reverse rollers, is rotatable relatively to the shaft and movable relatively to the shaft in a radial direction of the shaft. The annular member and the reverse rollers commonly press the sheets. A sheet-fed scanning apparatus using the sheet separation mechanism is also provided.

10. 发明申请

US20160083207A1 SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：纸张进给装置和图像形成装置
公开(公告)号：US20160083207A1
公开(公告)日：2016-03-24
申请号：US14959193
申请日：2015-12-04
申请人： CANON KABUSHIKI KAISHA
发明人： Emi Machii , Koji Kawamura
IPC分类号： B65H3/66 , B65H5/06 , B65H3/06
CPC分类号： B65H3/66 , B65H3/0676 , B65H3/5261 , B65H3/56 , B65H5/062 , B65H5/068 , B65H2402/31 , B65H2402/32 , B65H2404/1341
摘要： A sheet feeding apparatus has a conveying roller, a separation member which presses against the conveying roller to form a separation nip portion that separates received sheets one by one, a feeding member configured to feed a sheet towards the separation nip portion, a nip guide member having a first guide portion configured to contact with a leading edge of the sheet fed by the feeding member and a second guide portion disposed at facing position to the conveying roller and configured to guide the sheet abutted with the first guide portion for the separation nip portion and a biasing member configured to bias the nip guide member. The nip guide member rotates around a rotation shaft and the second guide portion is disposed at predetermined distance from the conveying roller and moves in a direction of separating from the conveying roller against biasing force by the biasing member.
摘要翻译：片材进给装置具有输送辊，分离构件，其压靠输送辊，形成分离接合部，分离接收片逐一分离;进给构件，其构造成朝向分离压合部供给薄片;夹持引导构件具有第一引导部分，其构造成与由所述馈送部件馈送的所述片材的前缘接触;以及第二引导部分，所述第二引导部分设置在所述输送辊的相对位置处，并且被配置为引导与所述第一引导部分邻接的所述片，以及偏压构件，其构造成偏压所述压区引导构件。辊隙导向构件围绕旋转轴旋转，并且第二引导部分设置在距传送辊的预定距离处，并且与偏置构件抵抗偏压力沿着与输送辊分离的方向移动。

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