Patents by Inventor Toshiharu Nishihara

Toshiharu Nishihara 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).

  • Tire uniformity machine
    Patent number: 6244105
    Abstract: In a tire uniformity machine in which a tire is mounted between upper and lower spindles via upper and lower rims, a rim holding apparatus 10 is composed of a parallel spindle 1 which is in parallel with the axis of tire uniformity machine, a taper collet 2 formed with an inner hole engaging concentrically with the parallel spindle 1 at the center portion thereof and a taper surface at the outer peripheral portion thereof, a rim formed with a taper surface engaging with the taper surface of the taper collet 2 at the inner peripheral portion thereof, a rim clamping device 4 which holds the rim 3 and is mounted so that the parallel spindle 1 is capable of being moved in the axial direction, and a fixing device 5 for determining the axial position of the rim clamping device 4. Thereby, there is provided a highly accurate tire uniformity machine in which (1) the change of rim width and the fitting/removal of rim can be performed easily, and (2) the runout of rim can be decreased to 0.025 mm (standard) or less.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: June 12, 2001
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Toshiharu Nishihara, Naoyuki Miyazono
  • Tire uniformity machine
    Patent number: 6089084
    Abstract: In a tire uniformity machine in which a tire is mounted between upper and lower spindles via upper and lower rims, a rim holding apparatus 10 is composed of a parallel spindle 1 which is in parallel with the axis of tire uniformity machine, a taper collet 2 formed with an inner hole engaging concentrically with the parallel spindle 1 at the center portion thereof and a taper surface at the outer peripheral portion thereof, a rim formed with a taper surface engaging with the taper surface of the taper collet 2 at the inner peripheral portion thereof, a rim clamping device 4 which holds the rim 3 and is mounted so that the parallel spindle 1 is capable of being moved in the axial direction, and a fixing device 5 for determining the axial position of the rim clamping device 4. Thereby, there is provided a highly accurate tire uniformity machine in which (1) the change of rim width and the fitting/removal of rim can be performed easily, and (2) the runout of rim can be decreased to 0.025 mm (standard) or less.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: July 18, 2000
    Assignee: Mitsubishi Heavy Industries Ltd.
    Inventors: Toshiharu Nishihara, Naoyuki Miyazono