| 摘要 |
The invention relates to a high-safety rope device for securing a person against free fall, comprising a casing 1, a rolling-up pulley 3 on which the rope 4 is rolled up, ratchets 5, 6 arranged so as to stand up (straighten) during rotation of the pulley 3 in order to press against the bearing edge of a slider 29. The casing has an annular groove 24 where the slider 29 is housed and a buffer element 23 which is resilient when compressed. <IMAGE>
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