| 摘要 |
PROBLEM TO BE SOLVED: To provide a truck capable of conveying a heavy load in a feeling of loading and conveying a light luggage by a hand truck by human power at site. SOLUTION: The truck for conveying a heavy load in a feeling of loading and conveying a light luggage on a hand truck by human power by amplifying the truck pushing force of an operator without any sense of incongruity is invented. The truck is equipped with an axle rotational force amplifier for the hand truck while the force detection (the torque sensing) and the electric-driven assist are constituted by one component. The force detection (the torque sensing) is calculated not by a sensor but by the induced current of the generator function. COPYRIGHT: (C)2008,JPO&INPIT
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