| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a passage blocking bar having high visibility and coherency and properly kept in rigidity while the passage blocking bar is made of a rod-shaped body hard to receive wind pressure. <P>SOLUTION: The passage blocking bar 50 which is made of a solid or hollow rod-shaped member, is held at one end 50a or both ends 50a and 50d and is used to open/close a crossing road 4, is formed into repeatedly bent shapes on a plane, looks like a straight object when viewed along the plane, and looks like a meandering object when viewed toward the plane. In a blocking state for closing the crossing road 4, downward opening widths U and V become narrower than a baby carriage and narrower than a shoulder width of a child, a height HL at an extremely small portion becomes lower than the baby carriage when a backrest is leaned backward and becomes lower than a height through which a child can easily pass, and heights of a reversing bend 50b and a reversing bend 50c which become maximum are made to alternately repeat high and low. <P>COPYRIGHT: (C)2013,JPO&INPIT |
