Sound insulating sleeve for straddling dowel has outwards protruding barb element on outer side of dowel for locking into opening formed on inner side of sleeve

摘要

The sound insulating sleeve for a straddling dowel(9) has an outwards protruding barb element(12) on the outer side(11), and a sleeve(2) made of sound insulating material with opening(8) on the inner side(7). When the dowel is fitted in the sleeve the barb locks into the opening so that the dowel and sleeve are captively and torsionally fixed in relation to one another. An encircling collar(5) protruding radially outwards and made of sound insulating material is formed on the axial end of the sleeve in which the dowel fits.