Patents by Inventor Yuuichi Fukata

Yuuichi Fukata 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: 8573349
    Abstract: In order to decrease the number of handling components of a parking brake unit without increasing a length of a wheel base, there is provided a forklift including a main input shaft which is rotationally driven by a hydraulic motor, a differential input shaft which rotates by the rotation of the main input shaft, and a differential mechanism which is provided between the differential input shaft and a front axle, the forklift being configured to run by transmitting power of the hydraulic motor to the front axle through the main input shaft, the differential input shaft, and the differential mechanism, wherein an idle shaft is disposed so as to be parallel to the differential input shaft, a power transmission mechanism obtained by meshing gears and is interposed between the differential input shaft and the idle shaft, and then a parking brake unit is provided in the idle shaft.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: November 5, 2013
    Assignee: Komatsu Ltd.
    Inventors: Toshiyuki Hirashita, Shinichi Naito, Tsutomu Komatsu, Yuuichi Fukata, Hitoshi Miyamoto, Kaoru Hasegawa
  • Patent number: 8556005
    Abstract: In a forklift, power is transmitted to a traveling pump and an operating machine pump through a PTO unit provided to an output shaft of an engine along front-rear direction of a vehicle body. The traveling pump is disposed to a first face of the PTO unit facing the hydraulic motor. An input shaft of the traveling pump is offset from the output shaft of the engine. The drive shaft of the hydraulic motor is offset from the output shaft of the engine and the input shaft of the traveling pump. The hydraulic motor is side by side with the traveling pump. The operating machine pump is mounted to a second face of the PTO unit mounted with the engine. An input shaft of the operating machine pump is offset from the traveling pump. The operating machine pump is under the engine to be side by side with the engine.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: October 15, 2013
    Assignee: Komatsu Ltd.
    Inventors: Kazuaki Ozawa, Kouichi Ariizumi, Tsutomu Komatsu, Yuuichi Fukata
  • Publication number: 20130164155
    Abstract: In a forklift, power is transmitted to a traveling pump and an operating machine pump through a PTO unit provided to an output shaft of an engine along front-rear direction of a vehicle body. The traveling pump is disposed to a first face of the PTO unit facing the hydraulic motor. An input shaft of the traveling pump is offset from the output shaft of the engine. The drive shaft of the hydraulic motor is offset from the output shaft of the engine and the input shaft of the traveling pump. The hydraulic motor is side by side with the traveling pump. The operating machine pump is mounted to a second face of the PTO unit mounted with the engine. An input shaft of the operating machine pump is offset from the traveling pump. The operating machine pump is under the engine to be side by side with the engine.
    Type: Application
    Filed: July 21, 2011
    Publication date: June 27, 2013
    Applicant: KOMATSU LTD.
    Inventors: Kazuaki Ozawa, Kouichi Ariizumi, Tsutomu Komatsu, Yuuichi Fukata
  • Publication number: 20130146384
    Abstract: In order to decrease the number of handling components of a parking brake unit without increasing a length of a wheel base, there is provided a forklift including a main input shaft which is rotationally driven by a hydraulic motor, a differential input shaft which rotates by the rotation of the main input shaft, and a differential mechanism which is provided between the differential input shaft and a front axle, the forklift being configured to run by transmitting power of the hydraulic motor to the front axle through the main input shaft, the differential input shaft, and the differential mechanism, wherein an idle shaft is disposed so as to be parallel to the differential input shaft, a power transmission mechanism obtained by meshing gears and is interposed between the differential input shaft and the idle shaft, and then a parking brake unit is provided in the idle shaft.
    Type: Application
    Filed: July 21, 2011
    Publication date: June 13, 2013
    Applicant: KOMATSU LTD.
    Inventors: Toshiyuki Hirashita, Shinichi Naito, Tsutomu Komatsu, Yuuichi Fukata, Hitoshi Miyamoto, Kaoru Hasegawa