Patents Examined by Luis Gonzalez
-
Patent number: 11912518Abstract: A sheet feeding device includes a feeding roller pair, a first guide, a door including a second guide and rotatable between a first direction and a second direction opposite to the first direction through first to third positions, a damping mechanism, and an engaging portion including an elastic member. A first resisting force is set so that moment acting around a shaft by a self-weight of the door is larger than the first resisting force of the damping mechanism when the door is positioned between the second position and the third position. A resultant force of the first resisting force of the damping mechanism and a second resisting force of the elastic portion is set so that the moment acting around the shaft by the self-weight of the door is larger than the resultant force when the door is positioned between the second position and the third position.Type: GrantFiled: May 17, 2021Date of Patent: February 27, 2024Assignee: Canon Kabushiki KaishaInventor: Eikou Mori
-
Patent number: 11912020Abstract: A sheet suction device includes a sheet bearer having a plurality of suction holes, a suction unit, a first member, and a second member. The first member has grooves arranged in a radial direction, and each of the grooves extends in a circumferential direction. The second member has a plurality of hole rows including a plurality of holes. The plurality of holes in each of the plurality of hole rows is arranged in the circumferential direction, and the plurality of hole rows is arranged in the radial direction. When the first member rotates with respect to the second member, the number of holes communicating with the grooves is changed to change the number of the plurality of suction holes communicating with the suction unit. The plurality of holes includes two or more holes that simultaneously communicate with the suction unit when the first member rotates by a unit rotation amount.Type: GrantFiled: December 30, 2020Date of Patent: February 27, 2024Assignee: RICOH COMPANY, LTD.Inventor: Hiroaki Miyagawa
-
Patent number: 11897722Abstract: According to an embodiment, a sheet conveying device detects double feeding of sheets by an ultrasonic wave oscillator and an ultrasonic waves receiver provided across a conveying path of the sheets. The sheet conveying device calibrates a threshold voltage on the basis of an offset voltage of an amplifier circuit when the receiver has not received ultrasonic waves.Type: GrantFiled: January 7, 2022Date of Patent: February 13, 2024Assignee: Toshiba Tec Kabushiki KaishaInventor: Junya Ohashi
-
Patent number: 11891271Abstract: The present invention is to provide a configuration facilitating removal of a sheet stopped on a conveying belt. In a sheet conveying apparatus that conveys a sheet using a conveying belt and balls, a sheet may be jammed and stopped on the conveying belt. In this case, it is difficult for a user to take out the sheet through a take-out port if the sheet is nipped by conveying roller pairs disposed upstream and downstream relative to the conveying belt in a sheet conveying direction. Thus, conveying roller pairs and the conveying belt are operated such that the sheet, which is stopped on the conveying belt and hence should be taken out through the take-out port, is brought into a state of being nipped only by the conveying belt and balls.Type: GrantFiled: August 25, 2021Date of Patent: February 6, 2024Assignee: CANON FINETECH NISCA INC.Inventors: Toshiyuki Iwata, Hiroshi Mochizuki, Tsukasa Kondo, Tetsuya Kawasaki, Yuuki Kubota
-
Patent number: 11891262Abstract: To ensure reliable and productive processing of printed sheets into stacks, a sheet stacker includes: a flipping device for flipping a sheet with respect to the sheet's orientation before being received by the flipping device onto a stack support or a stack of sheets on the stack support; a sensor assembly for detecting an out-of-plane deformation of a top sheet with respect to the underlying stack support or a stack of sheets on the stack support at least for each sheet added to the stack; and a controller configured to determine from data from the sensor assembly whether the top sheet was successfully flipped and stacked.Type: GrantFiled: November 9, 2022Date of Patent: February 6, 2024Assignee: CANON PRODUCTION PRINTING HOLDING B.V.Inventors: Peter J. W. Van Dongen, Dominique M. L. Perdaen, Christopher J. Borchert
-
Patent number: 11890868Abstract: A machine for processing individual sheets comprises at least one processing station, in particular in inkjet printing station, and a transport system (100) for transporting the individual sheets through the processing station, along a transport direction. The transport system (100) comprises at least one gripper conveyor (150) movable along the transport direction, for gripping one of the individual sheets defining a sheet position in transport direction. The transport system (100) further comprises at least one support conveyor (190) movable along the transport direction for supporting a region of the individual sheet, wherein the support conveyor (190) comprises a vacuum system for supporting the individual sheet on an interacting surface of the support conveyor, the vacuum system comprising a plurality of orifices in the interacting surface.Type: GrantFiled: March 18, 2020Date of Patent: February 6, 2024Assignee: BOBST MEX SAInventors: Olivier Freymond, Patrick Wittwer, Javier Perez, Nicolas Mosetti, Romain Bersier, Mathieu Gavin, Roberto Valterio
-
Patent number: 11884507Abstract: The present invention is to provide a configuration facilitating removal of a sheet stopped on a conveying belt. Regulating guides are disposed on both sides of a conveying belt in a sheet width direction Y and can guide both end edges in the sheet width direction of a sheet S conveyed while being nipped by the conveying belt and the balls. A take-out port is provided on the side closer to the regulating guide in the sheet width direction Y, through which a sheet stopped on the conveying belt is taken out. A guide moving part moves the regulating guides. When a sheet is stopped on the conveying belt, the guide moving part moves the first and second regulating guides such that the regulating guide is retracted to a position at which a support surface does not support a first sheet end edge.Type: GrantFiled: August 25, 2021Date of Patent: January 30, 2024Assignee: CANON FINETECH NISCA INC.Inventors: Toshiyuki Iwata, Takato Mizuno, Tsukasa Kondo, Tetsuya Kawasaki, Yuuki Kubota
-
Patent number: 11878894Abstract: A sheet discharger includes: an accommodator configured to accommodate sheets; a conveyor configured to convey and discharge a sheet to the accommodator; a detector configured to detect whether a jam of a sheet has occurred in the accommodator and a state of the jam; and a controller configured to control the conveyor to continue sheet discharge upon detection by the detector of the jam in a state where sheet discharge of a jammed sheet is possible.Type: GrantFiled: January 28, 2022Date of Patent: January 23, 2024Assignee: RISO KAGAKU CORPORATIONInventors: Masashi Hara, Yoshifumi Noguchi, Yoshiyuki Okada
-
Patent number: 11878893Abstract: According to an embodiment, a paper-length detection device includes: a moving mechanism and an angle sensor. The moving mechanism supports a magnet. The moving mechanism causes a first regulatory member to move closer to or further from a second regulatory member in accordance with movement of the first regulatory member. The moving mechanism further causes the magnet to rotate in accordance with the movement of the first regulatory member closer to or further from the second regulatory member. The angle sensor faces the magnet and outputs a signal corresponding to an absolute angle with the magnet.Type: GrantFiled: December 13, 2021Date of Patent: January 23, 2024Assignee: Toshiba Tec Kabushiki KaishaInventor: Sho Koike
-
Patent number: 11874622Abstract: A sheet transport device includes a sheet load tray on which a sheet is loaded, a detector that detects whether or not the sheet exists on the sheet load tray, a feeder that feeds the sheet one-by-one from the sheet load tray, and a sheet-load-tray ascend-descend unit that moves the sheet in a sheet loading direction to set an uppermost sheet at a sheet feed position of the feeder, and a controller. In a case where the sheet is detected by the detector, the controller causes the sheet load tray to ascend or descend before the feeder starts to feed the sheet so that ascending-descending operation for moving the sheet load tray between the sheet feed position and a descent position located below the sheet feed position is performed at least once.Type: GrantFiled: August 13, 2019Date of Patent: January 16, 2024Assignee: FUJIFILM Business Innovation Corp.Inventor: Miho Morita
-
Patent number: 11873180Abstract: A paper separating roller, including a shaft body, a first friction member and a second friction member is provided. The first friction member covers a first surface of an outer periphery of the shaft body. The second friction member covers a second surface of the outer periphery of the shaft body, wherein the first friction member and the second friction member are formed of two different materials. With the design of the friction members being formed of composite materials, the paper separating roller has the advantages of two different material features at the same time, such that a wider range of performance capabilities can be achieved.Type: GrantFiled: March 17, 2022Date of Patent: January 16, 2024Assignee: AVISION INC.Inventor: Min-Hao Chang
-
Patent number: 11872778Abstract: Method of manipulating a sheet of fiber reinforced material built up with parallel longitudinally oriented fibers embedded in a thermoplastic matrix material, wherein at least one face of the sheet is engaged by a friction element that extends substantially transversely to the orientation of the fibers, and that exerts friction onto the face in a direction substantially along the orientation of the fibers. And a device for moving sheets of fiber reinforced material having parallel longitudinally oriented fibers embedded in a thermoplastic matrix material, in particular sheets presenting anisotropic stiffness is disclosed.Type: GrantFiled: January 31, 2019Date of Patent: January 16, 2024Assignee: Airborne International B.V.Inventors: Moiz Ur Rehman, Tevfik Fikret Acer, Mark Muilwijk
-
Patent number: 11866283Abstract: A sheet stacking apparatus includes a sheet alignment mechanism configured for aligning a sheet in a predetermined reference position; a gripper arrangement configured to grip the aligned sheet at at least two spaced-apart points of the sheet and to release the sheet on a stack; and a holder configured to hold the sheet in position on the stack while the gripper arrangement releases the sheet. The gripper arrangement is movable along a predetermined trajectory for moving the sheet from the reference position to a stacking position.Type: GrantFiled: August 18, 2021Date of Patent: January 9, 2024Assignee: CANON PRODUCTION PRINTING HOLDING B.V.Inventors: Lodewijk T. Holtman, Fabian T. Rosenboom, Hermanus M. Kuypers
-
Patent number: 11840065Abstract: A printer includes a platen on which a recording medium is placed, an ink head including a nozzle that discharges ink onto the recording medium placed on the platen and that moves in a main scanning direction, an upstream guide located on an upstream side of the platen in a secondary scanning direction and that guides the recording medium, the upstream guide including an upper surface tilted obliquely downward from a downstream side to the upstream side in the secondary scanning direction, and grit rollers provided in the platen and that move the recording medium in the secondary scanning direction. The upstream guide is recessed from the upper surface of the upstream guide, and includes a concave recess that indicates a position of each of the grit rollers in the main scanning direction so that a position of the grit roller is easily acknowledged when the recording medium is placed on the platen.Type: GrantFiled: January 24, 2020Date of Patent: December 12, 2023Assignee: ROLAND DG CORPORATIONInventor: Chihiro Sakai
-
Patent number: 11838464Abstract: An image forming apparatus includes a casing, an upper cover, a lateral cover and a closing position holding mechanism which holds the lateral cover in a closing position. The closing position holding mechanism includes an engaging part provided in the upper cover and an engaged part provided in the lateral cover. When the upper cover is displaced from the opening position to the closing position in the state where the lateral cover is in the closing position, the engaging part is engaged with the engaged part from an outside on the lateral side of the casing. When the upper cover is displaced from the closing position to the opening position in the state where the lateral cover is in the closing position, the engagement of the engaging part with the engaged part is released as the upper cover is displaced.Type: GrantFiled: March 19, 2021Date of Patent: December 5, 2023Assignee: KYOCERA Document Solutions Inc.Inventor: Van Minh Nguyen
-
Patent number: 11827476Abstract: A sheet feeding device includes a driving roller, a driven roller rotated by the rotation of the driving roller, a non-conductive feeding guide, a conductive frame, a conductive bearing and an urging member to urge the driven roller toward the driving roller. The feeding guide includes a supporting portion to displaceably support the rotation shaft in an urging direction. The frame includes a positioning portion to position the driven roller in the urging direction by contact with the rotation shaft in a state in which the driving roller is urged by the driven roller.Type: GrantFiled: June 22, 2021Date of Patent: November 28, 2023Assignee: Canon Kabushiki KaishaInventor: Yuki Akamatsu
-
Patent number: 11827478Abstract: The invention relates to a suction brake for use with a sheet conveyor configured to convey a succession of flat elements in sheet form along a conveying path between a first location and a second location, the suction brake comprising: a hollow body having an interior cavity and a face that defines a plurality of suction apertures that communicate with the interior cavity; an obturator arrangement coupled to the hollow body and moveable with respect to the suction apertures; the obturator arrangement being moveable between an open position, in which the obturator arrangement exposes the suction apertures to a maximum extent, and a restricted position, in which the obturator arrangement occludes the suction apertures to a maximum extent. The obturator may rotate or be linearly translated in moving between the open and restricted positions.Type: GrantFiled: June 2, 2020Date of Patent: November 28, 2023Assignee: BOBST MEX SAInventors: Yann Delley, Steven Stojanovic-Roth, Jean-Claude Rebeaud
-
Patent number: 11827486Abstract: An image forming apparatus includes a conveyance unit, a detection unit, and a determination unit. The conveyance unit conveys a sheet. The detection unit detects a sound that emanates when the conveyance unit operates. The determination unit performs state determination. In a case where a volume of a sound detected by the detection unit is not higher than or equal to a predetermined sound volume, the determination unit determines that the conveyance unit is not normally operating. In a case where the detected sound volume is higher than or equal to the predetermined sound volume, the determination unit determines that the conveyance unit is normally operating.Type: GrantFiled: March 31, 2020Date of Patent: November 28, 2023Assignee: Canon Kabushiki KaishaInventors: Kosuke Ogino, Hajime Sugaya, Hiroshi Hagiwara
-
Patent number: 11814260Abstract: The present application relates to a device for conveying flat pieces. The device comprises a belt with a transport surface, wherein the belt is movable along a transport axis; a support element with a support surface for supporting the belt; and a vacuum supply for providing vacuum suction; wherein a suction distributing structure at the support surface of the support element is in fluid connection with the vacuum supply; and wherein the suction distributing structure has a belt suction region and a card suction region, wherein the belt suction region is configured to provide suction to the belt and the card suction region is configured to provide suction to flat pieces on the transport surface of the belt. The present application also relates to a system for treating flat pieces, the system comprising a treatment device, for example a print head.Type: GrantFiled: February 1, 2022Date of Patent: November 14, 2023Assignee: IAI industrial systems B.V.Inventor: Erik Niels Boerma
-
Patent number: 11814259Abstract: A sheet conveyance apparatus includes a conveyance unit, a conveyance guide, a driven rotary member, and a support portion. The support portion supports a shaft portion of the rotary member driven to rotate by a sheet conveyed by the conveyance unit and guided by the conveyance guide. The support portion includes first and second contact portions that support the shaft portion of the driven rotary member while being in contact with the shaft portion. With respect to a cross section of the shaft portion perpendicular to an axial direction of the shaft portion, the driven rotary member is disposed so that a portion, of the driven rotary member, that is on a lower side in a vertical direction relative to a horizontal line and is on one side in a horizontal direction relative to a vertical line comes into contact with the sheet.Type: GrantFiled: January 11, 2021Date of Patent: November 14, 2023Assignee: Canon Kabushiki KaishaInventors: Takayuki Suga, Takuya Yamaguchi