Patents by Inventor Shigeru Kitagami

Shigeru Kitagami 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).

  • Steering device for construction machine
    Patent number: 8899129
    Abstract: A tilt-up mechanism for tilting up an upper column of a steering column from a drive position to a tilt-up position is configured independently from a tilt angle adjusting mechanism and a column length adjusting mechanism. When an operator who is to get on/off an operator's seat steps on and operates a pedal of the tilt-up mechanism, an engaged state of a lock pin with respect to a tilt-up member is disengaged. The tilt-up member is rotated around a support shaft, by a spring force of a tilt-up spring, whereby the upper column is tilted up together with a steering wheel in a direction (A) away from the operator's seat. At this time, the tilt angle and the column length can be held at positions adjusted in advance.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 2, 2014
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Wataru Isaka, Ei Takahashi, Kazunori Komatsu, Shigeru Kitagami, Yuichi Koshizaka
  • STEERING DEVICE FOR CONSTRUCTION MACHINE
    Publication number: 20140109715
    Abstract: A tilt-up mechanism for tilting up an upper column of a steering column from a drive position to a tilt-up position is configured independently from a tilt angle adjusting mechanism and a column length adjusting mechanism. When an operator who is to get on/off an operator's seat steps on and operates a pedal of the tilt-up mechanism, an engaged state of a lock pin with respect to a tilt-up member is disengaged. The tilt-up member is rotated around a support shaft, by a spring force of a tilt-up spring, whereby the upper column is tilted up together with a steering wheel in a direction (A) away from the operator's seat. At this time, the tilt angle and the column length can be held at positions adjusted in advance.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 24, 2014
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Wataru Isaka, Ei Takahashi, Kazunori Komatsu, Shigeru Kitagami, Yuichi Koshizaka