| 摘要 |
PROBLEM TO BE SOLVED: To make easily manufacturable obstacles of a complicated shape, and to make safely enjoyable a play tool from child to adult by arranging the obstacles by an air film structure by at least one place or more in a course main body on which a pleasure car travels. SOLUTION: This obstacle course 1 on which a pleasure car (such as a motor- driven go-cart) travels is made by using an air film structure. That is, various- shaped courses are formed on both sides of a sheet-like course surface 5a by erecting guards 5b, 5b by a tubular air film structure for not going out of the course. A vertically moving obstacle 2 by an air film structure for vertically moving by a increase/decrease in an air quantity, a tunnel obstacle 3 by an air film structure swelling by blowing in air and a punch obstacle 4 by an air film structure that a punch 4a goes in and out of the side by an increase/ decrease in an air quantity are arranged in the middle of this course 1. For the respective obstacles, the injection quantity of air and the injection timing of air are controlled by a computer.
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