Assembly device, in particular of the insert, in order to hold an element of any type of plastic material, special, rigid and subject to deterioration in the fixing

摘要

The present invention relates to an assembly device in particular of the type called "insert" steel, brass, or any other metallic or plastic material, making it possible to maintain an element to be assembled on supports made of plastic material, special, rigid, and which have the drawback of being deteriorate when it is desired to carry out a fixing in these supports. / p & & p & the device comprises, on a same cylinder 2, a thread 5 of the height of the angle at the top and not determines, the dimensional ratio between the height and the pitch of the thread being such that the tearing or the degradation of the support can occur, the cylinder comprising, in addition, the elements of the ramp 7 does not penetrating in the support, but providing a centering and guiding of the insert to the inside of the hole made in the support for receiving the insert. / p & & p & the invention applies in a general manner to the devices for the maintenance of a support element of a plastic material.