Where Support Is Upheld By The Material (e.g., Dancer Roller, Etc.) Patents (Class 226/118.3)
  • Patent number: 10464768
    Abstract: A conveying apparatus according to an embodiment includes: a feeding-out member movable along a shaft member extending in a first direction and rotatable in a medium conveyance direction; a conveyance member configured to convey the medium from the feeding-out member along a medium conveyance route; a load applying member that applies a load in a direction opposed to the medium conveyance direction; a guide member placed at one end portion of the medium conveyance route in the first direction, and configured to restrict movement of the medium in the first direction; and an inclination member inclined with respect to the first direction and in contact with the medium between the feeding-out member and the conveyance member in the medium conveyance route, thereby making a conveyed distance of the medium shorter at a first side near the guide member than at a second side far from the guide member.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: November 5, 2019
    Assignee: Oki Data Corporation
    Inventor: Daichi Sato
  • Patent number: 10131517
    Abstract: An image forming apparatus, including: a sheet cassette; an image former; a fixer; a discharge tray; a conveyor configured to convey a sheet along a conveyance passage; a return conveyor configured to convey the sheet from a branch position between the fixer and the discharge tray to a merge position between the sheet cassette and the image former along a return passage which is branched from the conveyance passage at the branch position, passes below the sheet cassette, and merges with the conveyance passage at the merge position; a switchback roller disposed between the branch position and the discharge tray in the conveyance passage and configured to convey the sheet to the discharge tray when it rotates forwardly and to the return passage when it rotates backwardly; and an intermediate conveyance roller disposed in the return passage at a height level intermediate between the fixer and the sheet cassette.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: November 20, 2018
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Noritaka Iwama
  • Patent number: 9862560
    Abstract: The present disclosure is a tension control device which includes a pressing member configured to press an object in a noncontact manner by spraying a gas onto the object to which tension is applied, an actuator configured to vary a position of the pressing member, a pressure sensor configured to detect pressure of the gas, a gap sensor configured to detect a floating amount of the object from the pressing member, and a control unit configured to control the actuator based on a detected value of the pressure sensor and a detected value of the gap sensor.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 9, 2018
    Assignee: IHI CORPORATION
    Inventors: Mareto Ishibashi, Yoshiyuki Wada, Kensuke Hirata, Rui Oohashi
  • Patent number: 8985422
    Abstract: An accumulating apparatus (4) has an upper arm (51) in which a plurality of upper rollers (511) are arranged, and a lower arm (52) in which a plurality of lower rollers (521) are arranged. An upper gear (61) is fixed to the upper arm and a lower gear (62) is fixed to the lower arm. The upper gear is engaged with the lower gear so that the upper arm and the lower arm are simultaneously moved in opposite directions with respect to a vertical direction. Therefore, when moving the lower arm in the vertical direction, influence of the weight of the lower arm is canceled by the weight of the upper arm, and a force to move the lower arm upward can be reduced. As the result, an air cylinder (63) for changing a distance between the upper arm and the lower arm can be downsized.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: March 24, 2015
    Assignee: Livedo Corporation
    Inventor: Kazuya Maruhata
  • Publication number: 20130284786
    Abstract: A festoon assembly, system or arrangement includes at least one festoon roll having first and second opposite sides movably mounted to a respective support member. A linear bearing having an opening at least partially receiving therein a respective support member is arranged on at least one of the first and second sides. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: April 25, 2012
    Publication date: October 31, 2013
    Applicant: CONTINENTAL REIFEN DEUTSCHLAND GMBH
    Inventors: Gregory FITTS, Clint HAWKINS, James C. KELTON
  • Patent number: 8437014
    Abstract: A printed sheet handling system and method for use with lazy-portrait narrow-end to narrow-end (LPEE) formatted pages web printed pages to produce document sets includes: a printer to print LPEE formatted paired document pages on a continuous web; a slitter that divides the LPEE formatted printed web into two streams of sheets; collecting each stream in separate rolls of continuous sheets; withdrawing the stream of continuous sheets from a top of one roll, rotating the second roll 180°, and withdrawing the stream of continuous sheets from a bottom of the second roll; transferring each of the unwound streams of continuous sheets to a cutter that cuts each stream into individual pages; and collating the individual pages into correctly aligned and page number-sequenced document sets.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: May 7, 2013
    Assignee: DST Output
    Inventors: Frank W. Delfer, Charles B. Clupper, Marc J. Fagan, Brett Jay Flickner, Matthew Thomas Leettola, John Lawrence Arndt
  • Patent number: 7926688
    Abstract: A web processing assembly including first, second and third fixed spaced apart pairs of nip rollers moving the web respectively at a first, second and third speeds, the first and third speeds being constant and similar, the second speed being variable with a mean speed similar to the first and third speeds, a first idler roller engaging the web between the first and second pair of rollers and a second idler roller engaging the web between the second and third pair of rollers, each idler roller maintaining the web in constant tension by moving along a restrained path perpendicular to its axis to compensate for a difference between the variable second speed and the respective one of the constant first and third speeds. A method for processing a web and system for conveying a web are also disclosed.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: April 19, 2011
    Assignee: Durst Phototechnik AG
    Inventors: Louis Dupuis, Ross Hoge, James Koehler
  • Patent number: 7438251
    Abstract: A web tensioning device utilizes a dancer arm which can be positioned by a controlled servo motor. In a preferred embodiment, the controller for the servo motor receives an input signal based on the acceleration (positive or negative) of the dancer arm and implements a torque component necessary to maintain predetermined web tension, for example, an applied torque component that changes the position of the dancer arm. The controller may also receive additional input signals indicative of the acceleration of the web itself.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: October 21, 2008
    Assignee: Specialty Systems Advanced Machinery, Inc.
    Inventors: Patrick C. St. Germain, Gerald K. Langreck, Vernon C. Wickman, Ryan J. Carlson
  • Patent number: 6824032
    Abstract: A controller for controlling the running tension of paper web for rotary press includes a paper feed unit (1) and a printing unit (2) provided with a printing cylinder (21) rotating according to an operation speed command. An in-feed roller (4) is provided in a running path of paper web (W) from a paper roll (11) of the paper feed unit (1) to the printing cylinder (21). A dancer roller device (5) detects a displacement amount of a dancer roller (51) relative to a reference position of the dancer roller (51) and absorbs variations of the running tension of the paper web (W) by the displacement. A tension control processing unit (S1) performs signal generation processing to optimize the peripheral speed of the in-feed roller (4) with respect to the peripheral speed of the printing cylinder (21) based on the displacement amount of the dancer roller (51) and the operation speed command.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: November 30, 2004
    Assignee: Tokyo Kikai Seisakusho, Ltd.
    Inventor: Yoshizumi Kumatori
  • Publication number: 20040118892
    Abstract: A system and method for controlling the strain of a web material supplied to a machine by adjusting a tension force applied to the web material. An operator defines a target web strain via an input device. A speed sensor senses the speed of the web material supplied to the machine at a first position and a second position and generates a speed signal representative of the difference. A tension sensor senses a tension force applied to the web prior to the first position and after the first position and generates a tension signal representative of the difference. A control system calculates web strain as a function of the tension signal and speed signal, and compares the calculated strain with the target web strain and generates a speed control signal as a function of the comparison. The feed device is responsive to the speed control signal for adjusting a speed differential of the web to adjust tension force applied to the web.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Paul A. Weber, Thomas Arthur Bett, Tanakon Ungpiyakul
  • Publication number: 20040045996
    Abstract: A cabinet is provided downstream of a high speed laser printer, and provides an environmentally controllable environment for a web that must be “moisturized” before being fed to a downstream device for further processing. A single web loop is gravity biased as well as acted on by a constant force spring to accommodate abrupt speed changes in the web. The depth of the web loop is of sufficient height to accommodate reversals in web direction necessitated by the laser printer.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Inventor: Richard P. Lamothe
  • Patent number: 6588641
    Abstract: For use in a web-handling apparatus, a cylinder module accumulates and de-accumulates web in a controlled manner. A frame supports first and second parallel main cylinders. The first cylinder rotates continuously, while the second cylinder operates in a non-uniform manner. A third main cylinder remains parallel with the first and second axes while moving perpendicular to those axes. The web passes around the first cylinder through the first nip, thence to and around the periphery of the third cylinder, thence to and partially around the periphery of the second cylinder and through the second nip. The web spans from the third cylinder are substantially parallel. An endless belt associated with each end of the third cylinder ensures that the third cylinder occupies an axis location and a rotational position which substantially control the web stress as the web passes through the cylinders.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: July 8, 2003
    Assignee: Prittie Family Trust 1989
    Inventor: Allan R. Prittie
  • Patent number: 6471152
    Abstract: A dancer roll device has a support assembly that supports a roll. A ball screw is rotatably mounted on the support assembly. A weight member is mounted on the ball screw by a nut member that is threaded over the ball screw. When the ball screw is rotated about its own axis by a motor, the nut member and the weight member are displaced along the ball screw, thereby displacing the center of gravity of the support assembly. The moment applied to the roll is changed, thus changing the tension that is applied to a wide web or a narrow web via the roll.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: October 29, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyohito Suzuki, Katsumi Takemi
  • Publication number: 20020148875
    Abstract: For use in a web-handling apparatus, a cylinder module accumulates and de-accumulates web in a controlled manner. A frame supports first and second parallel main cylinders. The first cylinder rotates continuously, while the second cylinder operates in a non-uniform manner. A third main cylinder remains parallel with the first and second axes while moving perpendicular to those axes. The web passes around the first cylinder through the first nip, thence to and around the periphery of the third cylinder, thence to and partially around the periphery of the second cylinder and through the second nip. The web spans from the third cylinder are substantially parallel. An endless belt associated with each end of the third cylinder ensures that the third cylinder occupies an axis location and a rotational position which substantially control the web stress as the web passes through the cylinders.
    Type: Application
    Filed: April 11, 2001
    Publication date: October 17, 2002
    Inventor: Allan R. Prittie
  • Publication number: 20020148876
    Abstract: For use in a web-handling apparatus, a cylinder module accumulates and de-accumulates web in a controlled manner. A frame supports first and second parallel main cylinders. The first cylinder rotates continuously, while the second cylinder operates in a non-uniform manner. A third main cylinder remains parallel with the first and second axes while moving perpendicular to those axes. The web passes around the first cylinder through the first nip, thence to and around the periphery of the third cylinder, thence to and partially around the periphery of the second cylinder and through the second nip. The web spans from the third cylinder are substantially parallel. An endless belt associated with each end of the third cylinder ensures that the third cylinder occupies an axis location and a rotational position which substantially control the web stress as the web passes through the cylinders.
    Type: Application
    Filed: August 1, 2001
    Publication date: October 17, 2002
    Inventor: Allan R. Prittie
  • Patent number: 6352257
    Abstract: Apparatus for reducing peak tensions and tearing in perforated sheet (40) being drawn along a flow path from a stack (S) into a finishing machine (F) is comprised of a drag unit (22), for retarding motion of the sheet; an assist unit (20) for urging the sheet along the flow path; and, a dancer unit (24) for changing the length of the flow path. The assist unit comprises a pair of constant speed rollers (42, 44) supported by mounting blocks (40). The orientation of the assist unit is changed by rotating the mounting blocks. The roller (30) of the dancer unit is spring biased against the sheet.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: March 5, 2002
    Assignee: Asterisk, Inc.
    Inventors: Frank A. Todaro, Daniel J. Williams, Brian C. Richardson
  • Publication number: 20010054340
    Abstract: A method of cutting a magnetic recording medium comprising the steps of conveying a web by rollers to guide the web to a cutting blade; and cutting the web by the cutting blade in the lengthwise direction of the web so that magnetic recording mediums are formed, wherein a dynamic unbalance of at least a roller immediately before the cutting blade is made to be 20 g or smaller, and the roller guides the web to the cutting blade.
    Type: Application
    Filed: November 16, 1999
    Publication date: December 27, 2001
    Inventor: SHINGO FUJIKATA
  • Patent number: 6267283
    Abstract: A storage device for receiving and giving off a photographic band material. The storage device can be used for the buffering of photographic material and/or as indication or control element, and includes an inlet and an outlet for the photographic material band. A weight member pushes onto the photographic band material between the inlet and the outlet for the tensioning thereof, the height of which is changed during changing of the stored band length by interaction between the band tension and its inherent weight. A change in height of the weight member is coupled with a rotation of a driven member of a direction dependent coupling, the drive member of which is rotated in a free wheeling direction. A detector detects a locking condition of the direction dependent coupling, which occurs during free fall of the weight member, and a controller controls the transport of the band based on the detection.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: July 31, 2001
    Assignee: Gretag Imaging, A.G.
    Inventor: Peter Vogt