By Adjustable Restrainer Patents (Class 271/124)
  • Patent number: 10479625
    Abstract: A sheet feeding apparatus can perform appropriate separation corresponding to the type of sheet without an actuator which changes the separation action of a separation unit. For this purpose, a separation unit includes a first inclined part and a second inclined part, each having different inclination angles, and selects, in accordance with the type (stiffness, thickness, or the like) of sheet to be fed, either one of the first inclined part or the second inclined part as an inclined part used in separating sheets by lifting/lowering a tray, and separates sheets, so that appropriate separation can be performed in accordance with the type of sheet with a simple configuration.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: November 19, 2019
    Assignee: Canon Finetech Nisca Inc.
    Inventors: Shunsuke Igari, Shinji Toyoshima
  • Patent number: 10059543
    Abstract: A medium feeding device including a medium mounting portion where media are mounted; a feeding roller that feeds the media from the medium mounting portion by contacting a bottommost sheet of the media mounted in the medium mounting portion, and rotating; a separator that separates a sheet of the media by nipping the sheet between the feeding roller and the separator; an abutting member that is provided above the feeding roller, is switchable between a closed posture that blocks a feeding path of the media upstream of the separator and an open posture that opens the feeding path, abuts against a leading edge of the media mounted in the medium mounting portion, and includes a friction surface at a position where the abutting member abuts against the leading edge; and a biasing member that biases the abutting member toward the closed posture.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: August 28, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Masatomo Kanamitsu
  • Patent number: 10053316
    Abstract: In the separation roller, an entire area of a circumferential surface of the separation roller facing the sending roller is exposed to come in direct contact with the banknote, moving from the storage unit, on the storage unit side with respect to a contact portion which is in contact with the sending roller, both end portions in an axial direction of the separation roller are formed of a material having a friction coefficient smaller than that of a central portion thereof, and the diameter of the both end portions is the same as the diameter of the central portion.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: August 21, 2018
    Assignee: FUJITSU FRONTECH LIMITED
    Inventors: Kazuhiko Kawase, Atsushi Ando
  • Patent number: 9896285
    Abstract: A medium conveyance device includes: a first conveyance unit that applies a first conveyance force in a conveyance direction to a lowest medium among media on a medium stacker; a second conveyance unit disposed downstream in the conveyance direction of the first conveyance unit and that applies a second conveyance force in the conveyance direction to the medium being conveyed in the conveyance direction; a detector that detects that a rear end of the lowest medium receiving the first conveyance force passes through the first conveyance unit; and a controller that controls the first and second conveyance units. Upon determining that the rear end of the lowest medium receiving the first conveyance force passes through the first conveyance unit, the controller switches the first conveyance unit from a conveyance state of applying the first conveyance force to a non-conveyance state of not applying the first conveyance force.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: February 20, 2018
    Assignee: Oki Data Corporation
    Inventors: Kae Anzai, Hiromi Kusunoki
  • Patent number: 9896288
    Abstract: A paper feed apparatus includes a paper feeding roller and a separating pad for separating paper one by one and feeding the paper. This separating pad is supported by a separating pad holder to be abutted onto the paper feeding roller with a predetermined pressure. Furthermore, the separating pad holder is provided with a weight member in a loosely-fitted state.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: February 20, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshinori Shiraishi
  • Patent number: 9481533
    Abstract: The invention relates to a medium separation device of an automated teller machine (ATM) that includes a pickup roller for sequentially picking up and feeding stacked media through a friction member on a portion of the outer periphery of the pickup roller, a feed roller for feeding the picked-up and fed media toward a transfer path through a friction member provided on a portion of the outer periphery of the feed roller while rotating with the same phase as the pickup roller, and a medium separation unit for separating a following medium simultaneously fed with a preceding medium fed to the feed roller while in close contact with the bottom, from the preceding medium through a separation belt, to pick up and feed media through a partial roller structure partially having a friction member and simultaneously perform the separation of the media through the medium separation unit.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: November 1, 2016
    Assignee: NAUTILUS HYOSUNG INC.
    Inventors: Jin Young Hwang, Jong Seong Park, Chang Ho Park, Young Chul Lee
  • Patent number: 9457972
    Abstract: A medium processing device including a holding section that includes an opening forming a medium insertion port, and that holds a medium inserted through the insertion port, a medium press section that is capable of moving between a first end side wall and a second end side wall of the holding section, and that presses the medium inserted through the insertion port against the second end side wall of the holding section, and an opening-out section that spans between the medium press section and the first end side wall of the holding section, and that opens out in a medium non-holding area between the medium press section and the first end side wall of the holding section accompanying movement of the medium press section from the first end side to the second end side of the holding section in order to press the medium inserted into a medium holding area between the medium press section and the second end side wall of the holding section against the second end side wall of the holding section.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: October 4, 2016
    Assignee: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventor: Yuusuke Yamashita
  • Patent number: 9309069
    Abstract: A sheet separating apparatus includes: a stacking part including a sheet support surface; a separation roller; a flexible member; a holding member to which a second end portion of the flexible member is fixed and urging the second end portion toward the separation roller; and an abutting part abuttable on the flexible member at an intermediate position. The flexible member includes an auxiliary support surface, provided upstream from the intermediate position, configured to support a downstream end portion of a sheet supported on the sheet support surface in a conveying direction and bendable in a direction getting away from the separation roller, and a friction surface provided downstream from the intermediate position and faces the separation roller to be contactable with the separation roller for separating the sheet one at a time in cooperation with the separation roller.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 12, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Ito, Hideaki Utagawa
  • Patent number: 9221629
    Abstract: An exemplary friction feeder includes a hopper configured to accommodate a stack of items, a drive assembly configured to engage and move an item from the stack in a feed direction, and a gate assembly. The gate assembly includes a curved elongate separating member extending in the feed direction and configured to separate the item from other items in the stack as the item passes in the feed direction. The separating member has an item engaging surface biased to a reference point.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 29, 2015
    Assignee: SUPERIOR PAPER HANDLING SOLUTIONS, INC.
    Inventors: Steven G. Sands, Joseph R. Lacher
  • Publication number: 20150115519
    Abstract: A sheet conveyance apparatus includes a sheet conveyance path, a sheet feeding member, a driving mechanism, a stopper, an interlocking portion, a cover member, and an evacuation mechanism. The stopper is configured to change a posture between a projection posture and an evacuation posture. The projection posture is configured to project into the sheet conveyance path so as to prevent the sheet to be loaded on a sheet loading portion from abutting on the sheet feeding member. The evacuation posture is configured to evacuate the stopper from the sheet conveyance path. The evacuation mechanism is configured to: change the stopper to have the evacuation posture, or to be in a posture changeable state where the stopper changes from the projection posture to the evacuation posture by application of external force, in conjunction with a change of the cover member from a closed state to the open state.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 30, 2015
    Inventor: Mashio Takezawa
  • Patent number: 8985570
    Abstract: A paper feeding mechanism includes a mechanical frame, a gear assembly, a paper supply tray, a pickup assembly, a paper pressing assembly and a stopper assembly. The gear assembly includes a drive gear and a transmission gear. The paper pressing assembly includes a paper pressing frame, a paper pressing tray, a gear shaft, at least one swing arm and an elastic element. The stopper assembly includes a blocking element and a connecting element. The drive gear drives the transmission gear and the gear shaft to rotate, the connecting element drives the blocking element to move downward to make the blocking element realize a paper blocking function, and the drive gear breaks away from the drive gear, the elastic element pushes against the paper pressing tray to move downward, the blocking element breaks away from the paper supply tray to raise up for making the paper blocking function disappeared.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: March 24, 2015
    Assignee: Foxlink Image Technology Co., Ltd.
    Inventors: Jing Hua Fang, Wen Ching Liao, I Chuan Hong
  • Patent number: 8979088
    Abstract: A sheet feeding portion is provided with a pair of separation rollers that include a feed roller which conveys the sent sheet and a retard roller which applies a rotation force to return the sheet in a direction opposite to a sheet feeding direction through a torque limiter in a state of being pressed against the feed roller. The sheet feeding portion further includes a rotation transmitting mechanism that transmits a rotation of the retard roller, at the time of sending the sheet to the sheet feeding direction, to the pickup roller and a changing mechanism that switches a retard pressure, which allows the retard roller to be pressed against the feed roller, according to a reaction force that is transmitted to the retard roller from the pickup roller.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: March 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshifumi Itabashi
  • Patent number: 8944428
    Abstract: A removable media dam for a media input tray. The removable media dam is mountable in a front wall of the media tray and may contain one or more rollers for feeding media from the media input tray. The removable media dam includes a separator roll positioner for angularly rotating a separator roll between a retracted position and an extended position to adjust the height of the separator roll with respect to a media contact surface thereby varying the media sheet separation force applied by the separator roll to media sheets being fed from the media tray. In one form, the removable media dam is mountable by a user without the use of tools.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: February 3, 2015
    Assignee: Lexmark International, Inc.
    Inventors: Chad Michael Piening, Louann Behymer Samuels, Curtis Duane Woodson
  • Patent number: 8899575
    Abstract: There is disclosed a sheet feeding device which feeds a plurality of stacked sheet-like recording media one by one from a tray containing the recording media, including a sheet feeding roller which comes in contact with the uppermost layer of the recording media contained in the tray, and rotates to feed the recording medium; an inclined member including an inclined surface which is positioned on a downstream side in a feeding direction of the recording media, and inclined at an obtuse angle to the feeding direction of the recording media, and on which the fed recording media abuts; and a separating member having an uneven surface, to separate the one fed recording medium, wherein the separating member is configured to be movable between a position projecting to the inclined member and a position retreated from the projecting position, while maintaining the same inclining angle as that of the inclined member.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: December 2, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keisei Hakamata
  • Patent number: 8840103
    Abstract: A sheet conveying device includes: a separation sheet feeding mechanism having a paper feeding belt and a separation roller; and an adjustment mechanism that changes contact state of the paper feeding belt to the separation roller by changing relative position of the paper feeding belt and the separation roller, and changes and adjusts separation performance of the separation roller for the subsequent sheet, wherein the adjustment mechanism includes a cam follower member changing the relative position of the feeding belt and the separation roller, the cam member includes a first cam face and a second cam face which are formed at each rotation radius position in accordance with the rotation angle position, and are spaced apart in the rotation radius direction, and the cam follower member has a contact unit guided by the first cam face and the second cam face.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 23, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Takashi Fukumoto, Mamoru Kambayashi, Michitaka Suzuki, Atsushi Fujita, Masataka Fukuchi, Ryuji Yoshida, Hideki Tobinaga, Norio Kimura, Kenichiro Morita, Koki Sakano, Takuya Sano, Takuya Morinaga, Takashi Nakano
  • Patent number: 8833757
    Abstract: A method of using a separator roll positioner and separator roll rotational speed to correct media feed errors by angularly rotating a separator roll between a retracted position and an extended position to adjust the height of the separator roll with respect to a media contact surface or by varying separator roll rotational speed thereby varying the media sheet separation force.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: September 16, 2014
    Assignee: Lexmark International, Inc.
    Inventors: Chad Michael Piening, Louann Behymer Samuels, Curtis Duane Woodson
  • Patent number: 8807556
    Abstract: Even in printing apparatus that make use of a plurality of kinds of sheets, the degradation of image quality is reduced. A sheet conveying apparatus includes: a sheet stacking unit; a sheet conveying unit being in contact with the sheet stacked on an uppermost portion, of the stacked sheets, and conveying the sheet; a separation unit separating the sheets into only one sheet of the uppermost portion by a separation slope that abuts a tip portion of the sheet conveyed by the sheet conveying unit; and a guide unit connected to the separation unit and guiding the sheet, in which an angle between the sheet stacking unit and the separation slope is switched to a first angle and a second angle smaller than the first angle by a rotation center of the separation unit provided in a vicinity of a connection portion of the separation unit and the guide unit.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 19, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriyuki Sugiyama, Hiroyuki Saito, Atsushi Ikeda, Yasuyuki Hirai, Noriko Sato, Masashi Ito, Fumie Kameyama
  • Patent number: 8777212
    Abstract: A medium feeding device 1 includes a feeding roller 3 which conveys a medium S1 in a conveying direction, a brake roller 4 that is arranged to press the feeding roller 3 with a predetermined pressure, and a separating power generating device 7 which is connected to the brake roller 4 and generates rotational load in a direction counter to the conveying direction with respect to the brake roller 4. The separating power generating device 7 includes a torque limiter 19 which generates an upper limit torque T1 which is a fixed load as a first load generating unit, and an electromagnetic brake 23 which can change the generated load as a second load generating unit. The torque limiter 19 and the electromagnetic brake 23 are connected in parallel to the brake roller 4.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: July 15, 2014
    Assignee: PFU Limited
    Inventor: Ryoichi Yasukawa
  • Patent number: 8781388
    Abstract: An image forming device, comprising: a sheet-like medium accommodation unit; a supply member that carries a sheet-like medium; a pair of separation members that separate the sheet-like medium one by one; an image formation unit; a carrying path; a re-carrying unit to move inversely the sheet-like medium whose top face has been subjected to printing; a moving mechanism to move the supply member close to or away from the sheet-like medium and to move the pair of separation members close to or away from each other so that a path for the inversely carried sheet-like medium is formed; and a control unit to control the moving mechanism such that, when back-face printing is performed, the supply member is in a state of being moved away from the sheet-like medium and the pair of separation members are in a state of being moved away from each other.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 15, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takuya Yamaguchi, Yoshiteru Hattori
  • Patent number: 8720883
    Abstract: There is provided a recording apparatus including: a first member having a first sliding surface formed into a comb shape along the direction of movement of an object; a second member having a second sliding surface formed into a comb shape opposing the first sliding surface of the first member with the intermediary of a viscous member, the second member sliding between a first position which causes a restricting member to be positioned at a restricting position and a second position which causes the restricting member to be positioned at the releasing position in a state of engaging the restricting member; and a urging device configured to apply an urging force which causes the second member to slide from the first position to the second position, the urging device being arranged at least partly between tips and roots of teeth of the comb shape of the second sliding surface.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: May 13, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Yu Shinagawa, Hiroki Chino
  • Patent number: 8695964
    Abstract: A sheet conveying device to convey a sheet in a sheet path is provided. The sheet conveying device includes a separator roller, which is arranged to be rotatably in contact with the sheet to apply conveying force to the sheet, a pad assembly including a separator pad, which is arranged to be in contact with the sheet stack to apply convey resistance to the sheet stack, and a holder, which is swingably attached to a base member and holds the separator pad, the base member being in a fixed position with respect to the separator roller, a spring, which urges the pad assembly toward the separator roller, and a slidable member, which is attached to the pad assembly to be integrally movable with the pad assembly and to be slidably in contact with a first slidable section in the base member.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: April 15, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masanori Hamaguchi, Takaaki Mukai, Ryoichi Matsushima, Kotaro Kurokawa, Hiroyuki Shingai, Kazutoshi Nakamura
  • Patent number: 8695965
    Abstract: An image forming apparatus having a structure to prevent print defects caused by residual paper. The image forming apparatus includes a main body, a paper feeding cassette separably mounted to the main body, a pickup member to pick up paper from the paper feeding cassette, and a paper separating member including a plurality of links to apply pressure to the pickup member when the paper feeding cassette is mounted to the main body and to release the pressure applied to the pickup member when the paper feeding cassette is separated from the main body. The paper separating member includes a first link to be pressed by the paper feeding cassette, a second link provided with a separating unit to press the pickup member, and an elastic member between the first link and the second link to allow the first link to press the second link.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: April 15, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Hyup Shin, Seung Kyu Lee
  • Patent number: 8690151
    Abstract: An apparatus to separate out printed products from a stack including a pushing device to separate out a respective printed product from the stack. The pushing device includes a first rotary drive. The apparatus further includes a downstream-arranged removal device to convey away the respective separated out printed product. The removal device also includes a second rotary drive separate from the first rotary drive.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: April 8, 2014
    Assignee: Muller Martini Holding AG
    Inventors: Christoph Gysin, Pascal Mueller, Andreas Hess
  • Patent number: 8636278
    Abstract: The feeding device includes a storage unit, a feeding roller which rotates while contacting the uppermost sheet stored in the storage unit to move the uppermost sheet forward, a separation plate disposed forward in the movement direction of the uppermost sheet and provided with an inclined surface inclined with respect to the movement direction, and a separation auxiliary member is disposed along the inclined surface of the separation plate and operated by a force received when the uppermost sheet comes in contact. The separation auxiliary member includes a rotation shaft parallel with the inclined surface, and a first resistance part rotating about the rotation shaft as the center from an initial position projecting from the inclined surface to an embedded position embedded in the inclined surface as a friction coefficient of the first resistance part is higher than that of the inclined surface and the received force is increased.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: January 28, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuki Emoto, Yasuyuki Asai
  • Patent number: 8608158
    Abstract: A sheet feeding apparatus is provided, including a separation roller configured to apply a feeding force to a sheet, a pad assembly configured to pivot about a pivot axis in a direction close to or away from a supporting unit, and an elastic member configured to press the pad assembly toward the separation roller. The pad assembly includes a separation pad disposed facing the separation roller configured to apply a resistive force to a sheet, a holder holding the separation pad, and a first engaging portion disposed on a side of a distal end. The supporting unit includes a second engaging portion. The first and second engaging portions are configured to engage each other to restrict the pad assembly such that the distal end is not separated from the supporting unit more than a specified distance when the separation roller is separated from the separation pad.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: December 17, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takayuki Akimatsu, Masaru Takeuchi
  • Patent number: 8582125
    Abstract: In one embodiment, a structure comprises a pliable sheet and first and second stationary supports extending along and supporting the sheet. The supports are oriented relative to one another such that a distance between the supports at one part of the sheet is greater than a distance between the supports at another part of the sheet. In another embodiment, a sheet media input structure comprises a sheet media supporting surface and a media sheet separator downstream from the supporting surface along a media path that extends from the supporting surface to and along the separator. The separator is configured to separate a top sheet on the stack from a next-to-top sheet in the stack by resisting the movement of sheets along the media path and the degree of resistance varies along the length of the separator.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: November 12, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Tom Ruhe, Jiangxiao Mo
  • Patent number: 8561980
    Abstract: In an apparatus for singling sheet material, multiple picks are avoided by a retaining device ensuring that sheet material entrained with the sheet to be singled is retained not only on one side but also on the other side of the sheet to be singled. While the first retaining device is located opposite a singling gap of the singling device and is continually effective, the second retaining device acts before, or in, the singling gap from the other side of the singling gap and is only activated after the sheet to be singled is reliably grasped by the singling device, and deactivated when it has left the singling gap.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: October 22, 2013
    Assignee: Giesecke & Devrient GmbH
    Inventors: Erwin Demmeler, Ralf Hobmeier, Rainer Stoll, Frank Werner
  • Patent number: 8550450
    Abstract: A paper stopper mechanism for paper-feeding apparatus, which has simplified structure and commonly uses one motor to stop papers. The paper stopper mechanism includes a rotary shaft driven by a drive shaft via a gear assembly, a stopper plate disposed on the rotary shaft, which is movable between a first position and a second position along with the rotation of the rotary shaft, and a resilient member positioned between the rotary shaft and a transmission gear of the gear assembly. There is frictional force between the rotary shaft and the transmission gear, whereby the transmission gear can drive the rotary shaft to rotate. When the stopper plate and the rotary shaft stop at the second position, the transmission gear can still transmit power to a pickup roller to feed a paper into the paper-feeding apparatus without any error.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: October 8, 2013
    Assignee: Kinpo Electronics, Inc.
    Inventor: Shi-Ze Liu
  • Patent number: 8540232
    Abstract: A stopper, a paper feeding device including an inner and outer cases, a first and second axels, a first and second rollers, a pair of stoppers and a tray, and a multi-function printer are provided. The outer case has two side walls and two protrusions disposed on the side walls. The inner case is between the two side walls. The first axel pivots the inner case and the side walls. The first roller covers the first axel. The stoppers are disposed at outer side of the side walls, wherein each of the stoppers has a C-ring, a connecting portion and a stopping portion. Each C-ring pivoted to the first axel has a first and second ends, and the protrusions prop against to the first ends. The second axel pivots the inner case, and the second roller covers the second axel. The tray is disposed below the first roller.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: September 24, 2013
    Assignees: Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventor: Chung-Liang Huang
  • Patent number: 8540231
    Abstract: A paper stopper mechanism for paper-feeding apparatus, which has simplified structure and commonly uses one motor to stop papers. The paper stopper mechanism includes a rotary shaft driven by a drive shaft via a gear assembly, a stopper plate disposed on the rotary shaft, which is movable between a first position and a second position along with the rotation of the rotary shaft, and a resilient member positioned between the rotary shaft and a transmission gear of the gear assembly. There is frictional force between the rotary shaft and the transmission gear, whereby the transmission gear can drive the rotary shaft to rotate. When the stopper plate and the rotary shaft stop at the second position, the transmission gear can still transmit power to a pickup roller to feed a paper into the paper-feeding apparatus without any error.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 24, 2013
    Assignee: Kinpo Electronics, Inc.
    Inventor: Liu Shi-Ze
  • Patent number: 8534664
    Abstract: An image forming apparatus, comprising: a feed roller; a separation unit; a position detection part includes: a detection member that can move to a retracted position, and a detector which detects that a image formation target material is disposed at the feed position or the feed setup position in a case of having detected that the detection member is at the retracted position; and a restricting member that is disposed at a restricting position that restricts the detection member from moving from the initial position to the retracted position by abutting the detection member, in a detached state in which the separation unit is detached from the mounting part.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: September 17, 2013
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Kiyonori Yamamoto
  • Patent number: 8523173
    Abstract: The present invention provides a sheet feeder and an image forming apparatus that can prevent a sheet from being broken, bent, or remaining in an apparatus when a sheet containing portion is pulled out. In association with a cassette pulling operation, a separation mechanism separates a separation roller that is brought into press-contact with a feed roller in a manner in or out of contact with the feed roller, and lowers a lifter plate. A restricting portion constituted of a feed roller separation arm and a feed roller separation spring restricts the feed roller being applied a force by a feed roller pressurizing spring from following the separation roller separated from the feed roller and the lowering lifter plate when the cassette is pulled out.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: September 3, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Fumihiko Hayayumi
  • Patent number: 8517660
    Abstract: A system for singulating mailpieces including a first conveyance including a pair of opposing belts for singulating a mailpiece from a stack of mailpieces. The system includes an actuation mechanism operative to apply a force pulse through one of the belts to momentary separate mailpieces of the stack and augment singulation of the mailpiece from the stack by the first conveyance.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: August 27, 2013
    Assignee: Pitney Bowes Inc.
    Inventors: Steven J. DaCunha, Richard F. Stengl, Boris Rozenfeld
  • Patent number: 8517375
    Abstract: There is provided a feeding guide unit that slides according to a width size of the feeding material in a receiving unit that receives a plurality of feeding materials, and a separation unit having an inclined surface structure that abuts on a tip of the fed feed material so that a separating load is exerted, and separates the following feed material to feed only the feed material at the uppermost position. The separating load of the separation unit is changed to at least two stages in conjunction with a movement in a width direction of the feeding guide unit.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 27, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Tsuyoshi Otani, Yoshikane Tsuchihashi, Kohei Usuda, Satoru Watanabe
  • Patent number: 8511673
    Abstract: A mailpiece selector device comprising a guide co-operating with at least one opposing selector roller to separate mailpieces one-by-one from a stack of mailpieces and to transport them downstream, said guide having at least two adjacent selector fingers having different lengths, it being possible for each of said selector fingers to pivot independently from the other(s) about a common pivot axis and against respective associated resilient return means.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: August 20, 2013
    Assignee: Neopost Technologies
    Inventor: Romain Pillard
  • Patent number: 8496241
    Abstract: A sheet feeder includes a separation roller having a circumferential surface that contacts a first sheet to be fed first among stacked sheets and picks up the first sheet and one or more second sheets adjacent to the first sheet, a separation arm that is closer to the circumferential surface of the separation roller downstream in a feeding direction and configured to apply higher frictional resistance to the second sheets than the first sheet to feed the first sheet ahead of the second sheets, and a guide member including a guide portion that has a lower-friction surface than the separation arm and extends from the separation arm with a distal end thereof in contact with or close to the circumferential surface of the separation roller. The guide portion guides the first and second sheets along the circumferential surface of the separation roller.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: July 30, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshinori Osakabe, Takayuki Akimatsu
  • Patent number: 8469355
    Abstract: A sheet feeder includes a casing having a loading surface, a supply roller, a drive mechanism, a blocking member, and an interlocking mechanism. The supply roller is configured to feed recording sheets on the loading surface toward the image forming unit. The drive mechanism is configured to move the supply roller. The blocking member is disposed upstream from the supply roller in a sheet feed direction and includes a block surface configured to be moved between a first position and a second position. The block surface is configured to block insertion of a recording sheet to a downstream side when in the first position, and configured to allow insertion of the recording sheets on the loading surface when in the second position. The interlocking mechanism is configured to receive a drive force from the drive mechanism to move the blocking member.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: June 25, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsushi Miwa
  • Patent number: 8459635
    Abstract: A sheet feeding device and an image forming apparatus which can stably separate sheets even when the position of a pressing portion is changed are provided. A guide portion supports sheets from below and guides the sheets to a pressing portion between a sheet feeding roller which is biased in the direction pressing the sheet feeding roller onto the sheets stacked on a sheet stacking portion and a separating member which separates the sheets fed from the sheet feeding roller one by one. The guide portion is linearly lowered together with the separating member with the downward movement of the sheet feeding roller biased by a roller biasing member.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: June 11, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kozo Inoue
  • Patent number: 8448937
    Abstract: A medium supplying apparatus includes a separation mechanism that separates one medium at a time from a plurality of sheet-shaped media stacked in a loading rack and transports the medium, an irradiation unit that emits light onto a surface of the medium, and a light receiving unit that receives reflected light that is acquired by allowing the light emitted by the irradiation unit to be reflected from the surface and detects a reflected light intensity that is an intensity of the reflected light. The separating force of the separation mechanism that is used for separating a next medium is controlled based on the reflected light intensity detected by the light receiving unit.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: May 28, 2013
    Assignee: PFU Limited
    Inventors: Shigeharu Okano, Nobuhisa Yamazaki
  • Patent number: 8439355
    Abstract: A sheet feeder includes a sheet tray configured to support one or more sheets stacked thereon in a slanted state, a feed roller disposed to face a lower end of a top one of the sheets stacked on the sheet tray, the feed roller being configured to feed the sheets, a supporter disposed under the sheet tray movably relative to the feed roller, the supporter being configured to support, on an upper surface thereof, lower ends of the sheets stacked on the sheet tray, and a displacement mechanism configured to displace the supporter farther from the feed roller depending on a pressure which the feed roller applies to the sheets when rotating.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: May 14, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Akihiro Ikeda
  • Patent number: 8434757
    Abstract: A sheet feeder includes a loading surface, a supply roller configured to feed recording sheets loaded on the loading surface, an overload prevention member disposed upstream from the supply roller in a sheet feed direction, and a movable member disposed downstream from the overload prevention member in the sheet feed direction. The overload prevention member includes a restriction surface configured to be moved between a first position and a second position. The movable member is configured to be moved from a third position to a fourth position by being pushed by leading ends of the recording sheets. The movable member and the overload prevention member are configured to interlock each other such that, when the movable member is in the third position, the restriction surface is in the first position, and when the movable member is in the fourth position, the restriction surface is in the second position.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: May 7, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsushi Miwa
  • Patent number: 8403322
    Abstract: A sheet feed device includes: a sheet accommodation unit; a separation roller that applies conveyance force to sheets; and a separation resistance body including a friction portion facing the separation roller for separating the sheets one at a time. The sheet accommodation unit includes a guide portion provided at an upstream of the separation roller in a sheet feed direction for guiding the sheet. The separation resistance body includes an extension portion, which is pressed toward the separation roller while being supported to be contacted/separated to/from the separation roller, and which is extended upstream in the sheet feed direction from an upstream end portion of the separation resistance body. The guide portion and the extension portion are arranged in a line in a width direction. An upstream end portion of the extension portion is retreated with regard to a guide surface of the guide portion when feeding the sheets.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: March 26, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yasuyuki Otsuki
  • Patent number: 8398073
    Abstract: An automatic document feeder includes a sheet pick-up module and a floating shock-absorbing structure. The floating shock-absorbing structure is arranged at a feeding entrance. The sheet pick-up module includes a sheet pick-up roller and a sheet separation roller. When the sheet pick-up module is rotated to a sheet feeding position, the sheet pick-up roller is contacted with the floating shock-absorbing structure to feed the sheet into the internal portion of the automatic document feeder. By the floating shock-absorbing structure, the possibility of causing excessive shock and noise when the sheet pick-up arm strikes the feeding entrance will be minimized or eliminated.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 19, 2013
    Assignee: Primax Electronics, Ltd.
    Inventors: Wei-Hsun Hsu, Wen-An Huang
  • Patent number: 8393610
    Abstract: A sheet feeding device, which is configured to feed stacked sheets one by one in a sheet feed direction, is provided with a sheet tray configured to accommodate the stacked sheets, a feed-out roller protruded from the sheet tray and configured to feed the stacked sheets from the sheet tray, a feed-out nip member arranged above and opposite to the feed-out roller, the feed-out nip member being configured to contact an uppermost sheet of the stacked sheets and bias the sheets toward the feed-out roller, a separation unit located on a downstream side, in the sheet feed direction, of the feed-out roller, the separation unit separating a lowermost sheet from the stacked sheets fed by the feed-out roller, and a friction member configured to contact the uppermost sheet of the stacked sheets at a position different from a position where the feed-out nip member contacts the uppermost sheet.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: March 12, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroyuki Shingai
  • Publication number: 20130048725
    Abstract: A system for processing folded documents is disclosed. The system includes an input hopper configured to receive a stack of folded documents and an imaging area in which each of the documents is imaged. A pick-up mechanism is configured to transport each of the folded documents from the input hopper to the imaging area. The pick-up mechanism includes first and second barriers that are spaced apart to define a gap through which each of the folded documents is passed, wherein the gap is dimensioned to prevent passage of more than one of the folded documents. Preferably, the system also includes a detection system that is operable to detect the passage of more than one of the folded documents through a detection zone.
    Type: Application
    Filed: August 25, 2011
    Publication date: February 28, 2013
    Inventor: Dean Baumert
  • Patent number: 8382107
    Abstract: A sheet separating mechanism is disclosed, which comprises a frame (380), at least one set of transferring rollers (110), a separating roller (120), a reverse rotating roller (130), an eccentric adjusting means (310), a driving component, and an elastic component (320). The at least one set of transferring rollers and the separating roller are connected to the frame through a first rotating shaft (210,220), respectively. The eccentric adjusting means includes an eccentric plate (311) and an eccentric adjusting plate (312). The eccentric plate has an outer ring (315) and an inner ring (314) adapted to move inside the outer ring. The inner ring is connected with a second rotating shaft (230) that is connected with the reverse rotating roller. The reverse rotating roller is separated from the separating roller to form a separation gap. The driving component drives the first and the second rotating shafts to rotate.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: February 26, 2013
    Assignee: GRG Banking Equipment Co., Ltd.
    Inventors: Hongjun Wu, Linfa Zhang, Haifeng Xue
  • Patent number: 8382095
    Abstract: A sheet feeding unit has a main body, a sheet stack portion attached to the main body to accommodate a stack of sheets, a sheet feeding device disposed substantially above the sheet stack portion to feed the sheet onward, which is movable between a sheet feeding position at which the sheet feeding device contacts the sheet and feeds the sheet onward and a separating position at which the sheet feeding device separates from the sheet and does not feed the sheet onward, a separation unit to separate the sheets, a restriction member disposed between the sheet feeding device and the separation unit and is switchable between a sheet feeding state when the sheet feeding device is at the sheet feeding position and a sheet restriction state when the sheet feeding device is at the separation position, and a cover openably closable relative to the main body and constituted as an independent member.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: February 26, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Osanai, Kohji Hatayama, Takayuki Andoh
  • Patent number: 8371573
    Abstract: A feeding device includes a tray for stacking sheet-like conveyance-target media, a first pressing unit, and a second pressing unit. The first and second pressing units face and apply a first and second pressing force, respectively, on a circumferential surface of a pick roller so that a first contact area and a second contact area overlap each other. The first pressing unit includes a first pressing unit separation roller, and the first contact area is defined wherein the first pressing unit and the pick roller make contact with each other. The second contact area is defined wherein the second pressing unit and the pick roller make contact with each other such that the first contact area and the second contact appear to partly overlap each other when viewed from an axial direction of the pick roller.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: February 12, 2013
    Assignee: PFU Limited
    Inventors: Shuichi Morikawa, Masao Takayama, Hideyuki Okumura
  • Patent number: 8356810
    Abstract: A transport device includes a stopper which comes into contact with a target ahead of a guide surface of a guide member and regulates movement of the target and a slider which slides by contact of the target with the stopper. The stopper has a first regulation surface with which the target comes into contact ahead of the guide surface of the guide member, and a second regulation surface which regulates the movement of the target which moves along the first regulation surface. A damper mechanism is connected to the slider and has a damper force that weakens kinetic energy by the target that the stopper receives.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: January 22, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Sho Aruga, Kiichiro Kanbe, Yosaku Tamura
  • Patent number: 8342510
    Abstract: Provided are an apparatus for feeding sheets, booklets or the like having a wider adjustable range according to the thickness of the object than the conventional apparatus, and a system for sorting forwarding documents with the foregoing feeding apparatus. In the feeding apparatus, a moving shaft is supported by a fixed sleeve so as to be movable upward and downward. A main compression coil spring is located between the moving shaft and the fixed base and imparts a main spring force to the moving shaft in order that an overlap feed limiting member is pressed against a conveying belt. A sub compression coil spring imparts an oppositely directed sub spring force to the moving shaft. A position of a pressing washer is displaced downward by a threading engagement of an upper end adjusting bolt, so that even when the spring force of the main compression coil spring is increased, an increased amount is cancelled by an increase in the spring force of the sub compression coil spring.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: January 1, 2013
    Assignee: Ezawa Jimuki Co., Ltd.
    Inventor: Yuhiko Ito