Toy Dump Trucks Patents (Class 298/1T)
  • Patent number: 4696517
    Abstract: A dumping mechanism for a dumping toy truck with a rear deck is disclosed, which is provided with a covering element for preventing invasion of dust and gravel through a large hole for a lifting rod, as well as a buffering pad for a bearing shaft for the rear deck and a flexible buffer at the lower end of the lifting rod for absorbing any sudden shock or loading applied by an infant.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: September 29, 1987
    Assignee: Shinsei Kogyo Co., Ltd.
    Inventor: Toshiaki Nagano
  • Patent number: 4429888
    Abstract: A ridable toy dump truck powered by foot pedals to selectively either rotate wheels to propel the dump truck across a surface or to lift or recover a dump bed. The rotational force derived from the foot pedals is transmitted through a chain to a drive shaft. A second sprocket on the drive shaft transmits rotational force to predetermined wheels to propel the vehicle, while a third sprocket on the drive shaft transmits force to raise or lower the dump bed. A sliding clutch selects whether the second or the third sprocket is driven. A control handle engages the clutch so that a rider may select between propelling the dump truck across a surface, or raising or lowering the dump bed.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: February 7, 1984
    Inventor: Shane-Mau Wu