CAR BODY FRAME OF MOTOR-ASSISTED WHEEL BARROW AND INSTALLATION STRUCTURE OF AXLE

摘要

PROBLEM TO BE SOLVED: To provide a wheel barrow to lighten a burden of a worker, to display mobility and facility like a handpush type wheel barrow to improve controllability, to simplify maintenance and inspection work and to simplify replacement work of wheels. SOLUTION: A motor-assisted wheel barrow 1 is constituted by installing one wheel 3, batteries 4L, 4R and a motor 5 on a car body frame, extending operation handles 7L, 7R to the rear from the car body frame and installing a load-carrying platform 8 on an part of the car body frame, generates auxiliary motive power by the motor in accordance with manual operating force and helps human power by this auxiliary motive power. A motive power transmission mechanism is constituted of a first speed reduction mechanism 50 arranged in th neighborhood of the motor, a second speed reduction mechanism 80 arranged in the neighborhood of the wheel and a power transmission shaft 61 to connect these first and second speed reduction mechanisms to each other, and one end of the power transmission shaft is inserted into the first speed reduction mechanism free to extract.