| 摘要 |
PCT No. PCT/SE85/00386 Sec. 371 Date Jun. 10, 1986 Sec. 102(e) Date Jun. 10, 1986 PCT Filed Oct. 8, 1985 PCT Pub. No. WO86/02278 PCT Pub. Date Apr. 24, 1986.A safety belt comprises a first rope and a hose-shaped second rope. The inner diameter of the second rope expands radially when compressed axially and contracts radially when extended axially. The second rope includes axially spaced apart openings defining a tubular lead-through therebetween. The first rope passes through the openings of the second rope so that a portion of the first rope is contained in the lead-through. The second rope is looped around the first rope to form knotted portions surrounding the openings. Moving the knotted portions toward each other permits the first rope to move axially through the lead-through of the second rope, and moving the knotted portions away from each other locks the lead-through to the portion of the first rope contained in the lead-through. In a second embodiment the knotted portions of the second rope are replaced by tubular housings fixed to the second rope.
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