| 摘要 |
<p>PCT No. PCT/EP97/00858 Sec. 371 Date Aug. 21, 1998 Sec. 102(e) Date Aug. 21, 1998 PCT Filed Feb. 22, 1997 PCT Pub. No. WO97/32142 PCT Pub. Date Sep. 4, 1997A knock-in pin dowel contains a dowel shell with a non-expandable shaft part located on the outside and an expandable part connecting thereto. The expandable part is subdivided into two axially following or overlapping expandable areas, which are in each case formed by longitudinal slits and expandable segments remaining between said longitudinal slits. The two ends of the longitudinal slits of the first expandable area are closed, whereas the longitudinal slits of the inner expandable area directed towards the inside of the drilled hole are open at the dowel end.</p> |
