Patents by Inventor Kazuya Yuge

Kazuya Yuge has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7568571
    Abstract: In order to suppress speed irregularity of step rollers (5) in a passenger conveyor, a bent section (17) is formed in a step guide rail (3) and a restraining member (18) is provided upstream thereof, the shape of the height of the bent section (17) and the restraining member (18) is corrected beforehand by the amount of the compression of resilient members of the step rollers (5), which are formed with such resilient members around their shafts, by the compressive force acting between the bent section (17) and restraining member (18). Thus generation of speed irregularity of the steps (4) is suppressed and passenger comfort is improved. Also, by providing a recess (3aa) in the step guide rail (3), gripping of the step rollers (5) as they execute rolling movement along the undersurface of the restraining member (18) from below can be avoided, thereby preventing damage to the step rollers (5), restraining member (18) and step guide rail (3).
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: August 4, 2009
    Assignee: Toshiba Elevator Kabushiki Kaisha
    Inventors: Yoshio Ogimura, Takayuki Kikuchi, Kazuya Yuge, Yoshinobu Ishikawa
  • Publication number: 20070205079
    Abstract: When, in order to suppress speed irregularity of the step rollers (5), a bent section (17) is formed in the step guide rail (3) and a restraining member (18) is provided upstream thereof, the shape of the height of the bent section (17) and the restraining member (18) is corrected beforehand by the amount of the compression of the resilient members of the step rollers (5), which are formed with such resilient members around their shafts, by the compressive force acting between the bent section (17) and restraining member (18). Thus generation of speed irregularity of the steps (4) is suppressed and passenger comfort is improved. Also, by providing a recess (3aa) in the step guide rail (3), gripping of the step rollers (5) as they execute rolling movement along the undersurface of the restraining member (18) from below can be avoided, thereby preventing damage to the step rollers (5), restraining member (18) and step guide rail (3).
    Type: Application
    Filed: March 17, 2005
    Publication date: September 6, 2007
    Inventors: Yoshio Ogimura, Takayuki Kikuchi, Kazuya Yuge, Yoshinobu Ishikawa