| 摘要 |
The invention relates to an attachment element (10) to be crimped blind in an opening (18) of a substrate (17), said element including a metal body (11) consisting of a head (12) and of an elongate tubular shank (13) subdivided axially into a first intermediate area (14) for crimping and linking to the substrate (17), and a second end area (15), the first area being arranged such as to form a flange (19) intended for clamping the substrate (17) against the head (12) during the crimping, the shank (13) being coaxially surrounded by a hollow tube (20) made of a deformable material, characterised in that the tube (20) is formed by a thread or mesh which is open at the two ends thereof, and is provided with a plurality of links (21) distributed on the cylindrical side surface of the shank (13), said tube being configured such as to be compressible when mounted on the shank (13), and to be deployable during the formation of the flange (19), such as to increase the load-bearing effect after crimping. The invention is useful for nuts or rivets to be crimped blind. |
