| 摘要 |
Anchoring dowel 1 for a screw, for blind installation, comprising a head sleeve 3, a shank sleeve 4 which is coaxial with the head sleeve, longitudinal rods 5 connecting these sleeves, which can be folded and which are arranged about the axis XX of the latter, the head sleeve 3 being provided with a collar 6 for anchoring the dowel in a partition 2 and the shank sleeve 4 being tapped to interact with a screw 8 passing freely through the head sleeve 3; the screw 8 is extended by a tip 8c for guiding the dowel 1 through the partition 2 and the dowel 1 is provided with teeth 9 for boring the said partition after the tip 8c has penetrated into it. This dowel may advantageously be positioned without a drill. <IMAGE> |
