| 摘要 |
PROBLEM TO BE SOLVED: To provide an evacuation ladder for express highway emergency shelter for safely and swiftly evacuating to a safe place using a nearest emergency shelter when an accident occurs on an express highway.SOLUTION: An evacuation ladder 10 includes: a pair of right and left vertical frames 11 and 12; and handrail parts 11a, 12a which are bent in an inverse U-shape. The front face of the vertical frames 11 and 12 are connected by a lateral frame 13 and are reinforced by a side frame 14. A step board 15 is fixed to the vertical frames 11 and 12 with bolts or the like in an upperpart and a rear-lower part thereof. A step 17 is fixed to the vertical frames 11 and 12 in a front lower part. The evacuation ladder 10 and a post 2 of a guard rail 1 are fixed to each other at upper and lower two points with a U-shaped bolt 18 and a nut.SELECTED DRAWING: Figure 1 |
