| 摘要 |
PROBLEM TO BE SOLVED: To provide a slide for refuge, by which more people safely take refuge in a short time. SOLUTION: In a helical slide for refuge, which is juxtaposed in a building B, two inner and outer slopes 1 are arranged in parallel with an incline angle for sliding down for the portion of one floor in the building B by one helical revolution. The slide is made to be a roller type where multiple taper rollers 2 are arranged to be perpendicular concerning the progress direction in at least one of the slopes and also every other taper roller is fixed to be unrotatable.
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