| 摘要 |
<p>This expansion anchor comprises a screw (1) and an anchor body (4) capable of receiving the shaft (3) of the screw, the anchor body (4) comprising: - a flange (55) intended to be directed towards the head (2) of the screw, - a portion forming a nut (69) designed to engage with the thread (31) of the screw, - a deformable expansion portion (6, 7) between the flange and the portion forming a nut. The portion forming a nut (69) is designed to advance towards the flange (55), deforming the expansion portion (6, 7) towards a deployed position, under the action of screwing the screw into the portion forming a nut. In the mounted position of the anchor in a hole (41) in a wall (40), with the flange (55) bearing against a first face (40A) of the wall, the expansion portion in the deployed state forms a continuous contact surface (So) facing the second face (40B) of the wall and has a load-bearing section (Sigmai), transversely to the axis (X1) of the screw, which is generally tapered from the contact surface (So) towards the portion forming a nut (69).</p> |
