| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously satisfy both of the cost performance and the safety by mounting a fixed support and a movable support on a floor of a conveying path, and providing the supports with the different frictional coefficients so that one of the supports has a function for reducing the friction with respect to a heavy article, and the other support is provided with a braking function with respect to the heavy article. SOLUTION: A fixed support 30 and a movable support 40 respectively having the frictional coefficients largely different from one another, are mounted along the moving direction on a conveying surface of a conveying path 20. The fixed support 30 is made of concrete having high frictional coefficient with respect to a steel material 11, and partially abutting on the bottom steel material 11 of a heavy article 10 to support a body weight of the heavy article 10 at all times, and further exercises the braking function in the movement. The movable support 40 comprises an elevation part 41 providing the friction reducing action in the movement, and an elevating means 42 for moving the elevation part 41 up and down, and the elevation part 41 is raised in the movement of the heavy article 10 partially abutting on the bottom steel material 11 for supporting a part of the body weight of the heavy article 10, whereby the heavy article can be economically moved in safety.
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