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公开(公告)号：US20160083207A1
公开(公告)日：2016-03-24
申请号：US14959193
申请日：2015-12-04
发明人： Emi Machii , Koji Kawamura
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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公开(公告)号：US20220017319A1
公开(公告)日：2022-01-20
申请号：US17377564
申请日：2021-07-16
发明人： Emi Machii , Takafumi Suzuki , Seiji Obata , Koichi Sekimizu
摘要： A sheet conveyance apparatus includes a conveyance unit configured to convey a sheet, a guide member disposed to define a conveyance path, a light-emitting element, a light-receiving element configured to output a detection signal that changes in accordance with an amount of received light, a first light-passing portion disposed to define an optical path from the light-emitting element to the conveyance path, and a second light-passing portion disposed to define an optical path from the conveyance path to the light-receiving element. The light-receiving element is configured such that the detection signal changes in accordance with whether or not a sheet is present in the conveyance path. Reflectance of each of the first light-passing portion and the second light-passing portion to the light emitted from the light-emitting element is higher than reflectance of the guide member to the light emitted from the light-emitting element.
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公开(公告)号：US10969731B2
公开(公告)日：2021-04-06
申请号：US16543263
申请日：2019-08-16
发明人： Emi Machii , Masaki Seto , Takashi Yano
摘要： To achieve reliable electrical connection, a width of a ring shape portion becomes narrower toward a side closer to a compression spring portion in an axis direction of the compression spring portion, and an end portion of a winding start portion is located closer to a second end portion of the ring shape portion on a side opposite to the compression spring portion.
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4.发明申请公开(公告)号：US20200064772A1
公开(公告)日：2020-02-27
申请号：US16543263
申请日：2019-08-16
发明人： Emi Machii , Masaki Seto , Takashi Yano
摘要： To achieve reliable electrical connection, a width of a ring shape portion becomes narrower toward a side closer to a compression spring portion in an axis direction of the compression spring portion, and an end portion of a winding start portion is located closer to a second end portion of the ring shape portion on a side opposite to the compression spring portion.
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公开(公告)号：US20140197593A1
公开(公告)日：2014-07-17
申请号：US14146071
申请日：2014-01-02
发明人： Emi Machii , Koji Kawamura
CPC分类号： B65H3/66 , B65H3/0676 , B65H3/5261 , B65H3/56 , B65H5/062 , B65H5/068 , B65H2402/31 , B65H2402/32 , B65H2404/1341
摘要： Disclosed are a sheet feeding apparatus and an image forming apparatus capable of reliably separating and feeding sheets one by one without delay and damage to a sheet for a high speed of a printer or the like. A sheet feeding portion has a nip guide member having a sloped guide surface sloped so as to guide a leading end of a sheet to a separation nip portion such that a guide leading-end is biased to a feed roller with a predetermined distance from the feed roller. A support member supports the nip guide member not to recede from the feed roller when a thickness of a sheet bundle bumping into the sloped guide surface is smaller than a predetermined distance between the feed roller and the guide leading-end and supports the nip guide member to recede from the feed roller when the thickness is larger than the predetermined distance.
摘要翻译： 公开了一种片材进给装置和图像形成装置，其能够一个接一个地可靠地分离和输送片材而不延迟并损坏打印机等的高速度的片材。 片材进给部分具有辊道导向件，该辊隙导向件具有倾斜的倾斜导向表面，以将片材的前端引导到分离压合部分，使得导向前端被偏压到与进给器预定距离的进给辊 滚筒。 当进入倾斜引导表面的片材束的厚度小于进给辊和导向件前端之间的预定距离时，支撑构件支撑夹持引导构件不从进给辊退回，并且支撑夹持引导构件 当厚度大于预定距离时，从进给辊退回。
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公开(公告)号：US11634292B2
公开(公告)日：2023-04-25
申请号：US17377564
申请日：2021-07-16
发明人： Emi Machii , Takafumi Suzuki , Seiji Obata , Koichi Sekimizu
摘要： A sheet conveyance apparatus includes a conveyance unit configured to convey a sheet, a guide member disposed to define a conveyance path, a light-emitting element, a light-receiving element configured to output a detection signal that changes in accordance with an amount of received light, a first light-passing portion disposed to define an optical path from the light-emitting element to the conveyance path, and a second light-passing portion disposed to define an optical path from the conveyance path to the light-receiving element. The light-receiving element is configured such that the detection signal changes in accordance with whether or not a sheet is present in the conveyance path. Reflectance of each of the first light-passing portion and the second light-passing portion to the light emitted from the light-emitting element is higher than reflectance of the guide member to the light emitted from the light-emitting element.
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公开(公告)号：US20180282100A1
公开(公告)日：2018-10-04
申请号：US15909731
申请日：2018-03-01
发明人： Emi Machii , Tamotsu Kaneko , Kazushi Suzuki , Hideki Ohta
摘要： A sheet conveyance device includes first and second discharge portions to discharge sheets, first and second stacking portions on which sheets are to be stacked, and a control unit to control the second stacking portion to move between a first position and a second position. The first position is that a downstream side of the second stacking portion is positioned and inclined upwardly with respect to an upstream side of the second stacking portion in a sheet conveyance direction of the sheets discharged from the second discharge portion. The second position is that the downstream side of the second stacking portion is positioned on a lower side of the first position of the downstream side of the second stacking portion.
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公开(公告)号：US09764914B2
公开(公告)日：2017-09-19
申请号：US14959193
申请日：2015-12-04
发明人： Emi Machii , Koji Kawamura
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.
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公开(公告)号：US09242820B2
公开(公告)日：2016-01-26
申请号：US14146071
申请日：2014-01-02
发明人： Emi Machii , Koji Kawamura
CPC分类号： B65H3/66 , B65H3/0676 , B65H3/5261 , B65H3/56 , B65H5/062 , B65H5/068 , B65H2402/31 , B65H2402/32 , B65H2404/1341
摘要： Disclosed are a sheet feeding apparatus and an image forming apparatus capable of reliably separating and feeding sheets one by one without delay and damage to a sheet for a high speed of a printer or the like. A sheet feeding portion has a nip guide member having a sloped guide surface sloped so as to guide a leading end of a sheet to a separation nip portion such that a guide leading-end is biased to a feed roller with a predetermined distance from the feed roller. A support member supports the nip guide member not to recede from the feed roller when a thickness of a sheet bundle bumping into the sloped guide surface is smaller than a predetermined distance between the feed roller and the guide leading-end and supports the nip guide member to recede from the feed roller when the thickness is larger than the predetermined distance.
摘要翻译： 公开了一种片材进给装置和图像形成装置，其能够一个接一个地可靠地分离和输送片材而不延迟并损坏打印机等的高速度的片材。 片材进给部分具有辊道导向件，该辊隙导向件具有倾斜的倾斜导向表面，以将片材的前端引导到分离压合部分，使得导向前端被偏压到与进给器预定距离的进给辊 滚筒。 当进入倾斜引导表面的片材束的厚度小于进给辊和导向件前端之间的预定距离时，支撑构件支撑夹持引导构件不从进给辊退回，并且支撑夹持引导构件 当厚度大于预定距离时，从进给辊退回。
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