| 摘要 |
<p>The dowel (1) has a compression region (9) arranged between a spreading portion (2) and a holding element (6), which are compressible when driving an expanding element (3) e.g. screw, such that distance between the spreading portion and the holding element is reduced. Longitudinal bars (10) are arranged in the compression region, and comprise a network of stitches (12) for enclosing apertures (13). The compression region forms a closed casing in an end position. The spreading portion is expandable by the expanding element for anchoring in a bore hole formed in an anchorage base. The compression region is formed as a hollow cylinder. The holding element is designed as an insulating screw thread.</p> |
