F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 5/02 (2006.01) E04B 5/12 (2006.01) E04D 12/00 (2006.01) E04F 13/08 (2006.01)
Patent
CA 2304694
The invention concerns a screw (1) for fixing wooden roof boards (10) on a roof substructure having inter alia a wooden beam (9). In each case is arranged a threaded section (2, 3) adjacent to the screw head (5) and to a penetrating or perforating tip (6). Said two threaded sections (2, 3) have the same external diameter and have between them an unthreaded shank section (4).
L'invention concerne une vis (1) pour fixer des voliges (10) en bois sur un patelage de toit présentant entre autres une poutre en bois (9). Il est prévu dans chaque cas, une section filetée (2, 3) adjacente à la tête (5) de la vis et à un bout d'enfoncement ou de perçage (6). Ces deux sections filetées (2, 3) ont le même diamètre extérieur et présentent entre elles une section de tige (4) non filetée.
Mattle Paul
Thurnherr Ernst
Robic
Sfs Industrie Holding Ag
LandOfFree
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