| 摘要 |
PROBLEM TO BE SOLVED: To provide a road cone, inexpensively provided by using a small metal mold, easy in carrying and storage, and excellent in weatherability.SOLUTION: A road cone consists of: a seat cylinder with a seat flange; trunk cylinders; and a head cylinder with a handle part. Each cylinder has a trapezoidal shape in side view whose height is chosen to be a dimension obtained by substantially equally dividing a dimension of a height of a road cone shape so as to be assembled in a knockdown road cone shape having a circular cone shape whose diameter becomes thinner upward and the seat flange at its bottom edge. The road cone is formed in a state that the stacked cylinders alternately have different colors, and can be set in a low height state that, within a cylinder ring of the seat cylinder in the lowest position, a series of the trunk cylinders and head cylinder is stored from the lower order cylinder in sequence. Mutually fitting junction parts for connecting the adjacent higher cylinder and lower cylinder are provided in these cylinders so that, when the stored cylinders are extended from the low height state, the road cone shape can be formed. |
