Patent ID: 6679662
Filing Date: 2004-01-20
Classification: F16B

Abstract:
An expansible plug, comprising an expansible region a plurality of expansible tongues which extends over said expansible region and are expandable radially away from one another under the action of an expanding member, said expansible tongues being spaced from one another in a circumferential direction as that transverse throughgoing spaces are formed between said expansible tongues over their entire length and therefore said expansible tongues are radially compressible so as to at least narrow said spaces and to reduce a transverse size of said expansible region, said expansible tongues including two expansible tongues which are spaced from one another in a first transverse direction and each provided with wing-shaped elements which extend tangentially to the expansible plug and extend in a second transverse direction which is transverse to said first transverse direction, so as to form free longitudinal edges for improving anchoring of the expansible plug in a drilled hole; a tubular insertion sleeve and another tubular sleeve provided correspondingly at a rear end and at a leading end, said expansible tongues merging into said tubular sleeves in one piece with said tubular sleeves, said expansible region having a larger diameter than a diameter of said tubular sleeve and also having a constant cross section over a major portion of an axial length of the expansible plug, all said tongues being expansible tongues and formed so that by compression of said expansible region to the diameter of said sleeves said spaces between said expansible tongues close at least almost completely over at least almost a whole length of said expansible region.