| 摘要 |
<p>The fastening element designed as dowel sleeve (1) projects through a bore into the cavity of the wall. An envelope (6), closed at the inner end and welded on the dowel sleeve (1) at the outer end, is pushed onto the dowel sleeve (1). The envelope (6) consists of an anisotropic fabric which can only expand in the radial direction. It is filled with a hardenable binder and in the cavity there is obtained, with exclusively radial expansion of the envelope (6), a bead-like, large-surface abutment for fastening an object on the wall. <IMAGE></p> |
