公开(公告)号：US20040188919A1

公开(公告)日：2004-09-30

申请号：US10806158

申请日：2004-03-23

Applicant: FUJI XEROX CO., LTD.

Inventor： Katsumi Sakamaki ,  Kazuyuki Tsukamoto ,  Shin Takeuchi

IPC: B65H003/52

CPC classification number: B65H3/5261 ,  B65H2515/34

Abstract: A sheet feeder is provided, which includes: a sheet feed member and a separating member which form a nip portion by pressing each other, the separating member rotates following the sheet feed member when a first recording sheet is inserted into the nip portion, and rotates reversely when a second recording sheet is inserted while being stacked under the first recording sheet; a sheet detection unit which detects the recording sheet inserted into the nip portion; a direction detection unit which detects a rotation direction of the separating member; and a separating force adjusting unit which gradually increases a reverse rotation torque of the separating member from a initial torque after the sheet detection unit detects the recording sheet, and stops the increase of the reverse rotation torque to maintain the reverse rotation torque when the direction detection unit detects reverse rotation of the separating member.

Abstract translation: 提供了一种进纸器，其包括：片材进给构件和通过彼此挤压形成夹持部分的分离构件，当第一记录片材插入到夹持部分中时，分离构件沿着片材进给构件旋转，并且旋转 当第二记录片材被堆叠在第一记录片材下方时被反向地插入; 片材检测单元，其检测插入到夹持部中的记录片材; 方向检测单元，其检测分离构件的旋转方向; 以及分离力调节单元，其在片材检测单元检测到记录片材之后逐渐增加分离构件的反转转矩与初始扭矩，并且当方向检测时停止反转转矩的增加以保持反转转矩 单元检测分离构件的反向旋转。

公开(公告)号：US20040169326A1

公开(公告)日：2004-09-02

申请号：US10745613

申请日：2003-12-29

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Hiroshi Nakano ,  Takuya Yamaguchi

IPC: B65H003/52

CPC classification number: B65H3/5223 ,  B65H3/0638 ,  B65H2404/1112 ,  B65H2404/5311

Abstract: A sheet feeding device includes a sheet feeding roller and a holder body. A separation pad is arranged on an upstream side, in a feeding direction of a recording medium, within a concave portion of a top surface side of the holder body facing a surface of the sheet feeding roller. On a downstream side of the concave portion adjacent to the separation pad, a low friction member is arranged in which at least a surface layer is formed of a material with a small coefficient of friction. Furthermore, a gap formation portion is formed in a surface of the concave portion where the low friction member is arranged and made higher than a surface where the separation pad is arranged. Additionally, by making the separation pad and the low friction member with the same thickness, when arranged in the concave portion, the surface of the low friction member is formed higher than the surface of the separation pad by the height of the gap formation portion.

Abstract translation: 片材进给装置包括片材进给辊和保持器本体。 在记录介质的进给方向的上游侧，在保持体的与供纸辊的表面相对的顶面侧的凹部内配置有分离垫。 在与分离垫相邻的凹部的下游侧，布置有低摩擦构件，其中至少由具有小摩擦系数的材料形成表面层。 此外，在布置低摩擦构件的凹部的表面中形成间隙形成部，并使其高于配置有分离垫的表面。 此外，通过使分离垫和低摩擦构件具有相同的厚度，当布置在凹部中时，低摩擦构件的表面形成为高于分离垫的表面高度的间隙形成部分的高度。

公开(公告)号：US20040150153A1

公开(公告)日：2004-08-05

申请号：US10750895

申请日：2004-01-05

Applicant: SAMSUNG Electronic Co., Ltd.

Inventor： Hoon Kang

IPC: B65H003/52

CPC classification number: B65H3/06 ,  B65H3/56 ,  B65H2301/423245 ,  B65H2404/15 ,  B65H2404/267 ,  B65H2405/1136 ,  B65H2405/313

Abstract: A paper feeding apparatus includes: a frame forming one of a paper stacker and a paper feed tray on which paper is stackable; a paper feed unit disposed above the frame and including a pickup roller which picks up the paper; and an active paper separator disposed at a lower part of the frame in the paper feeding direction thereof, contacting leading ends of sheets disposed in the frame, rotatable in an anti-paper feeding direction opposite the feeding direction so as to actively rub the leading ends and thereby separate and feed the sheets one at a time when the sheets of paper are picked up by the pickup roller.

Abstract translation: 一种送纸装置，包括：形成纸堆叠器和供纸托盘之一的框架，纸张可堆叠在其上; 设置在框架上方并且包括拾取纸张的拾取辊的供纸单元; 以及活动纸分离器，其设置在所述框架的纸张进给方向的下部，其与设置在所述框架中的纸张的前端接触，以与所述进给方向相反的反纸张输送方向旋转，以便主动地摩擦所述前端 从而在由拾取辊拾取纸张的时候分离并进给纸张。

公开(公告)号：US20040051230A1

公开(公告)日：2004-03-18

申请号：US10642574

申请日：2003-08-19

Inventor： Hironori Tanaka ,  Yutaka Hino

IPC: B65H003/52

CPC classification number: B65H9/006 ,  B65H3/063 ,  B65H3/5238 ,  B65H9/002 ,  B65H2301/331 ,  B65H2404/611 ,  B65H2404/723

Abstract: A paper feeder for use in image forming apparatus is provided, which includes separating rubber member and sheet feeding roller both disposed at a location corresponding to a widthwise central portion of a recording sheet, and which is operative to feed the recording sheet by rotation of the sheet feeding roller and bring the leading edge of the recording into contact with a skew correction roller in a rotation-halted state to correct possible skew of the recording sheet before image formation, the paper feeder being provided with buckling preventive mechanism extending over opposite sides of the separating rubber member for preventing the recording sheet from being deflected during feeding of the recording sheet by the sheet feeding roller.

Abstract translation: 提供一种用于图像形成装置的供纸器，其包括分离橡胶构件和送纸辊，两者均设置在与记录纸的宽度方向中心部分对应的位置处，并且可操作以通过旋转 片材进给辊，使记录的前端与旋转停止状态的偏斜校正辊接触，以校正图像形成之前的记录片材的可能的偏斜，供纸器设置有弯曲防止机构，其在相对侧 所述分离橡胶构件用于防止记录纸在通过供纸辊馈送记录纸时被偏转。

公开(公告)号：US20040017039A1

公开(公告)日：2004-01-29

申请号：US10619674

申请日：2003-07-16

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Tetsuo Asada ,  Takatoshi Takemoto

IPC: B65H003/52

CPC classification number: B65H3/56 ,  B65H3/0661 ,  B65H2404/725 ,  B65H2405/113 ,  B65H2405/1136 ,  B65H2405/141

Abstract: A sheet-supply device includes a pair of stopper members provided to a bottom plate of a hopper portion so as to move between a protruding position where upper surfaces of the stopper members protrude from a surface of the bottom plate and a retracted position where upper surfaces of the stopper members retract from the surface of the bottom plate, and a position change mechanism moving the stopper members between the protruding and retracted positions. By changing a timing of ascending the stopper members to the protruding position according to a type of the sheets to be fed, an appropriate resistance is applied to all of the sheets in the hopper portion except a topmost sheet during a sheet feed operation, thereby preventing a multi-feed problem. The stopper members moves up and down several times via the position change mechanism at a time between after the sheet feed operation is completed and before a next sheet feed operation starts, thereby positioning the sheets, which may cause the multi-feed problem, at a predetermined sheet holding position.

Abstract translation: 片材供应装置包括一对止动件，其设置在料斗部分的底板上，以便在止动件的上表面从底板的表面突出的突出位置和从底板的表面突出的缩回位置之间移动; 止动构件从底板的表面缩回，并且位置改变机构使止动构件在突出位置和缩回位置之间移动。 通过根据要进给的片材的类型改变止动件上升到突出位置的时间，在片材进给操作期间，除了最上面的片材之外的料斗部分中的所有片材都施加适当的阻力，从而防止 多重饲料问题。 止动构件在片材进给操作完成之后和在下一个进纸操作开始之间的时间通过位置改变机构上下移动多次，从而将可能导致多次进纸问题的纸张定位在 预定的纸张保持位置。

公开(公告)号：US20030160379A1

公开(公告)日：2003-08-28

申请号：US10370623

申请日：2003-02-24

Applicant: CANON DENSHI KABUSHIKI KAISHA

Inventor： Masashi Shimamura ,  Masahiro Shirai

IPC: B65H005/00 ,  B65H003/06 ,  B65H003/52

CPC classification number: B65H3/5246 ,  B65H3/06 ,  B65H3/56

Abstract: A sheet feeding apparatus for separating and feeding sheets supported on a sheet supporting portion one by one is provided with a separating and feeding portion having a sheet feed roller provided downstream of the sheet supporting portion for feeding the sheets, and a separation roller brought into pressure contact with the sheet feed roller, and designed to be rotatable in the same direction as or a direction opposite to the rotational direction of the sheet feed roller, and separating and feeding the sheets one by one, and a transport restriction guide provided near the separation roller so as to protrude toward the sheet feed roller for restricting the number of sheets coming into the pressure contact portion between the sheet feed roller and the separation roller, and the transport restriction guide is formed by a flexible member, and is provided so as to be pressed by the sheets coming into between the sheet feed roller and the separation roller and be flexible toward the separation roller side, and the transport restriction guide is flexed so as to abut against the separation roller.

Abstract translation: 一个片材供给装置，用于一个一个地分离和供给被支撑在片材支撑部分上的片材，分离和进给部分设置有一个供纸辊，该片材进给辊设置在片材支撑部分的下游用于供给片材， 与片材进给辊接触，并被设计成可以沿与片材进给辊的旋转方向相反的方向旋转，或者与片材进给辊的旋转方向相反的方向旋转，并且一个接一个地分离和供给片材，以及设置在分离器附近的传送限制引导件 辊朝向送纸辊突出以限制进入送纸辊和分离辊之间的压力接触部分的纸张数量，并且传送限制引导件由柔性部件形成，并且设置成 被进给到进纸辊和分离辊之间的纸张按压并且朝向分隔件是柔性的 离子辊侧，并且输送限制引导件弯曲以抵靠分离辊。

公开(公告)号：US20030137094A1

公开(公告)日：2003-07-24

申请号：US10347851

申请日：2003-01-21

Applicant: BENQ Corporation

Inventor： Yen-Sung Hsieh

IPC: B65H003/52

CPC classification number: B65H3/56 ,  B65H3/0661 ,  B65H2405/113 ,  B65H2405/1136 ,  B65H2511/214 ,  B65H2515/81 ,  B65H2220/11 ,  B65H2220/08 ,  B65H2220/02 ,  B65H2220/01

Abstract: A sheet separator. The sheet separator includes a main body, a frictional member, and an elastic member. The main body is rotatable with a slot being longitudinally parallel to the moving direction of the medium. The frictional member is disposed in the slot and contacts the medium. When feeding, the medium exerts a first force on the main body through the frictional member. Moreover, the elastic member connects to the main body and exerts a second force thereon. According to the first force and the second force, the angle between the main body and the medium is adjusted.

Abstract translation: 片材分离器。 片状隔板包括主体，摩擦构件和弹性构件。 主体可旋转，槽的纵向平行于介质的移动方向。 摩擦构件设置在槽中并与介质接触。 当进给时，介质通过摩擦构件在主体上施加第一力。 此外，弹性构件连接到主体并且在其上施加第二力。 根据第一力和第二力，调节主体和介质之间的角度。

公开(公告)号：US20030085508A1

公开(公告)日：2003-05-08

申请号：US10279904

申请日：2002-10-25

Inventor： Yutaka Fukuchi

IPC: B65H003/52

CPC classification number: B65H3/5223 ,  B65H2511/20 ,  B65H2601/521 ,  B65H2220/02

Abstract: To suppress vibration and percussive noises generally created by a separation pad and pressure spring in a sheet feeding apparatus, a sheet feeding tray stacks and maintains sheets, a sheet feeding roller launches sheets stacked on the sheet feeding tray, and a separation pad separates sheets from each other. In particular, when feeding a last sheet of one job, the sheet feeding roller stops rotating while pinching an uppermost sheet of a next job in cooperation with the separation pad.

Abstract translation: 为了抑制通常由片材进给装置中的分离垫和压力弹簧产生的振动和冲击噪声，片材进给托盘堆叠并保持片材，片材进给辊发射堆叠在片材进给托盘上的片材，并且分离垫将片材从 彼此。 特别地，当馈送最后一张作业时，片材进给辊在与分离垫协作的同时捏住下一作业的最上面的纸张的同时停止转动。

公开(公告)号：US20020175462A1

公开(公告)日：2002-11-28

申请号：US10134554

申请日：2002-04-30

Inventor： Shinya Sonoda ,  Tadashi Hanabusa

IPC: B65H003/52

CPC classification number: B65H3/0607 ,  B65H3/5223 ,  B65H3/56 ,  B65H3/565 ,  B65H2301/4222 ,  B65H2403/47 ,  B65H2403/732

Abstract: There is here disclosed a sheet material feed apparatus comprising sheet material stacking means for stacking sheet materials; a feed roller for feeding the sheet materials stacked on the sheet material stacking means; a drive source for driving the feed roller; a separation roller rotated according to the feed roller to separate a sheet material; a separation roller holder for rotatably holding the separation roller, the separation roller holder being rotated to thereby move the separation roller to a position in contact with the feed roller and a position apart from the feed roller; and return means for returning the sheet materials other than the sheet material separated by the separation roller to the sheet material stacking means, the return means being controlled by one-direction rotation for driving the feed roller of the drive source. Furthermore, a recording apparatus for recording on the sheet material by the recording head is also disclosed herein.

Abstract translation: 这里公开了一种片材输送装置，其包括用于堆叠片材的片材堆叠装置; 用于馈送堆叠在片材堆叠装置上的片材的进给辊; 用于驱动进给辊的驱动源; 分离辊，根据进给辊旋转以分离片材; 分离辊保持器，用于可旋转地保持分离辊，分离辊保持器旋转，从而将分离辊移动到与进给辊接触的位置和与进给辊分离的位置; 以及用于将由分离辊分离的片材以外的片材返回到片材堆叠装置的返回装置，通过单向旋转来控制返回装置，以驱动驱动源的进给辊。 此外，本文还公开了一种用于通过记录头在片材上记录的记录装置。

公开(公告)号：US20020060396A1

公开(公告)日：2002-05-23

申请号：US09941730

申请日：2001-08-30

Inventor： Hironori Tanaka

IPC: B65H003/52

CPC classification number: B65H3/56 ,  B65H1/02 ,  B65H3/0661 ,  B65H2402/541 ,  B65H2404/5311 ,  B65H2404/56 ,  B65H2405/1136

Abstract: Resilient supporting member for resiliently supporting the lower edge of recording paper sheets is provided near a lower part of a back plate of a paper sheet feeding apparatus. The resilient supporting member includes a rocking support piece and a spring. When the recording paper sheets are inserted into the paper sheet feeding apparatus, the rocking support piece is angularly displaced about an axis extending perpendicularly to the paper sheet feeding direction and absorbs the impact force generated in inserting the recording paper sheets, whereby the rocking support piece is pressed against a predetermined holding portion by an upwardly directed spring force and the angle that the receiving face of the rocking support piece makes with the supporting face of the back plate is held at an angle null1 suitable for paper sheet feeding.

Abstract translation: 在纸张供给装置的背板的下部附近设置用于弹性地支撑记录纸的下边缘的弹性支撑构件。 弹性支撑构件包括摆动支撑件和弹簧。 当记录纸张被插入到纸张馈送装置中时，摆动支撑件围绕垂直于纸张馈送方向延伸的轴线成角度地移位，并且吸收在插入记录纸张时产生的冲击力，由此摆动支撑件 被向上的弹簧力按压在预定的保持部分上，并且摆动支撑件的接收面与背板的支撑面形成的角度被保持在适合于纸张进给的角度θ1。