US Patent 10343510 Dump truck

A dump truck includes: a vehicle body frame; a body supported by the vehicle body frame and configured to be raised or lowered; a plurality of tires provided to the vehicle body frame; an electric motor configured to drive the tires; and a cooling blower configured to feed a cooling air to the electric motor, in which the vehicle body frame at least partially includes a hollow part, and the hollow part defines a duct through which the cooling air passes.