| 摘要 |
PURPOSE:To improve the working efficiency in a railroad working by allowing a railroad working vehicle to travel as it is on a rail by installing each wheel for the traveling on the rail which has the less diameter than the diameter of the traveling tire, inside the tires for front and rear wheels. CONSTITUTION:In the application of a working vehicle such as power shovel equipped with four-wheel drive type traveling tires 2 and 3 in the front and rear parts, wheels 4 and 5 for the traveling on a rail which has the slightly less diameter than the diameter of the tires 2 and 3 are installed inside the tires 2 and 3. The wheels are installed by using an insulating member 6 and an insulating bolt 7, and safety is secured. The step difference H between the tires 2 and 3 and wheels 4 and 5 is set so that the tires 2 and 3 do not contact a signal wire laid along a rail 9 and railroad ties, when the power shovel is traveled on the rail. In the traveling on the rail, the working vehicle is traveled by itself by driving a build-in power unit. |
