Patent ID: 6010288
Filing Date: 2000-01-04
Classification: F16B

Abstract:
A drive-in dowel, comprising a sleeve (2; 22) provided with load application means and having a front section formed of a plurality of expansion elements separated from each other by longitudinal slots, each of the plurality of expansion elements being formed of a trailing expansion tab (8, 28) and a leading expansion tab (9, 29) separated by a flexible transitional region (6, 26) and forming with each other an angle (.alpha.) from about 100.degree. to about 160.degree., with a front end of the leading tab being located closer to a sleeve longitudinal axis (A) than the flexible transitional region (6, 26); and a plurality of chisel-like cutters (10) provided on outer surfaces of respective flexible transitional regions (6; 26) and which substantially do not project beyond an outer diameter of the sleeve (2; 22),wherein a cutter (10) is limited by a free surface of a respective trailing tab (8, 28) and a chisel surface of a respective leading tab (9, 29), the free surface (11) and the chisel surface (12) forming with each other an angle of throat (.epsilon.) of from about 30.degree. to about 90.degree..