| 摘要 |
An impact absorbing device includes an attachment component having one-or-more holes, an impact absorption pipe which absorbs external impacts and arranged so that it can slide axially and coaxially within the attachment component, one-or-more movable resistance bodies arranged so that they can move freely within the one-or-more holes, an impact absorption pipe movement component support component, an impact absorption pipe movement component, a support part having a first section and a second section formed in this order so that a distance between each of the sections and an interior side wall of the attachment component becomes smaller respectively, a support part movement component which provides an energization power to the support part, wherein the first section is in a position which faces the one-or-more holes of the attachment component when the support part comes into contact with a bottom part of the attachment component.
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