Patents by Inventor Kenichi Shiki

Kenichi Shiki 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).

  • Gear shift device
    Patent number: 8397596
    Abstract: A gear shift device is used in a transmission of an engine, and includes: a shift drum that changes a speed change stage of the transmission according to a rotational position about an axis; an actuator having a driving shaft substantially orthogonal to this shift drum; a worm shaped barrel cam that is arranged parallel to the driving shaft of this actuator and that has a cam groove on an outer circumference; and a wheel gear that is coaxially fixed on the shift drum and that has a plurality of pins on an outer circumference. At least a pair of each pin of the wheel gear and the cam groove of the barrel cam is engaged with each other, and the shift drum is rotated by the actuator via the barrel cam and the wheel gear, to thereby change the speed change stage of the transmission.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: March 19, 2013
    Assignee: Honda Motor Co., Ltd
    Inventors: Akihiko Tomoda, Tomoo Shiozaki, Kenichi Shiki, Yoshihisa Kanno
  • GEAR SHIFT DEVICE
    Publication number: 20100000363
    Abstract: A gear shift device is used in a transmission of an engine, and includes: a shift drum that changes a speed change stage of the transmission according to a rotational position about an axis; an actuator having a driving shaft substantially orthogonal to this shift drum; a worm shaped barrel cam that is arranged parallel to the driving shaft of this actuator and that has a cam groove on an outer circumference; and a wheel gear that is coaxially fixed on the shift drum and that has a plurality of pins on an outer circumference. At least a pair of each pin of the wheel gear and the cam groove of the barrel cam is engaged with each other, and the shift drum is rotated by the actuator via the barrel cam and the wheel gear, to thereby change the speed change stage of the transmission.
    Type: Application
    Filed: September 28, 2007
    Publication date: January 7, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Akihiko Tomoda, Tomoo Shiozaki, Kenichi Shiki, Yoshihisa Kanno