Patents Assigned to Toyo Unpanki Co., Ltd.
  • Apparatus for controlling cargo handling position
    Patent number: 4733600
    Abstract: An apparatus for controlling the angular position of the booms of an earthwork vehicle such as a wheeled tractor loader includes a shock absorber, by which the hydraulic pressure to be applied to a cargo handling valve for changing the position of a valve spool therein is lowered so as to lessen the shocks which are felt when the booms come to a stop position.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: March 29, 1988
    Assignee: Toyo Unpanki Co., Ltd.
    Inventor: Nobuo Masano
  • Speed changer for vehicles used in construction work
    Patent number: 4610178
    Abstract: A speed changer for a vehicle such as a track shovel is proposed with which the vehicle speed can be easily changed from one speed to another while operating a shovelling control lever. A changeover switch is mounted on the grip of the shovelling control lever.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: September 9, 1986
    Assignee: Toyo Unpanki Co., Ltd.
    Inventor: Ryutaro Kameshita