Patent ID: 7320179

Claim:
Method for the assembly of an insulating plate ( 2 ) on a substructure ( 3 ) by means of a dowel ( 1 ) having a pressing plate ( 13 ) with a single outer circumference and a dowel sleeve ( 15 ) attached to said pressing plate ( 13 ) for taking up an expansion element ( 11 ) having an expansion element head ( 12 ), wherein the dowel sleeve ( 15 ) comprises an expansion zone ( 18 ), comprising at least the following steps: a) drilling of a bore-hole ( 4 ) through the insulating plate ( 2 ) into the substructure ( 3 ), b) inserting the dowel ( 1 ) and the expansion element ( 11 ) into the bore-hole ( 4 ), c) driving in the expansion element ( 11 ) into the pressing plate ( 13 ) and the dowel sleeve ( 15 ) and simultaneously d) pulling in the pressing plate ( 13 ) into the insulating plate ( 2 ) under compression of the insulating plate ( 2 ) and simultaneously cutting in the insulating plate ( 2 ) at the circumference of the pressing plate ( 13 ) by means of cutting devices ( 17 ) curved along a circumferential length to substantially follow said pressing plate outer circumference.