Screw, building envelope, and insulating method
AssigneeHilti Aktiengesellschaft
InventorsThomas Foser, Daniel Baudy
Life of this patent
Estimating the term…
Abstract
The invention relates to a screw, comprising a drive, a drilling tip for producing a bore, said bore having a bore axis and a bore diameter, which drilling tip is spaced apart from the drive in a drive-in direction, and a shaft, which extends from the drive to the drilling tip, wherein the shaft has a stop section, which can be fed through the bore when the drive-in direction of the screw is tilted in relation to the bore axis and which has a stop surface for blocking the feeding of the stop section through the bore when the drive-in direction of the screw is oriented parallel to the bore axis.
Claims18
A screw comprising a drive, a drilling tip spaced apart from the drive in a driving direction for producing a bore having a bore axis and a bore diameter, and a shaft extending from the drive to the drilling tip, wherein the shaft has a stop section, which can be fed through the bore when the driving direction of the screw is tilted in relation to the bore axis, and which has a stop surface for blocking feeding of the stop section through the bore when the driving direction of the screw is oriented parallel to the bore axis.
The building envelope according to claim 11, further comprising a base plate and a cover plate, wherein the screw fastens the cover plate to the base plate and wherein a distance of the cover plate from the base plate is greater in an area of the screw than a distance between a driving-in end of the drilling tip and the stop surface of the screw.
- A method for insulating a building wall, comprising
- a) fastening a baseplate to the wall,
- b) placing an insulating element against the base plate,
- c) placing a cover plate onto the insulating element,
- d) fastening the cover plate to the base plate by a screw according to claim 1.
- The method according to claim 13, comprising
- d1) drilling a first bore into the cover plate using the drilling tip,
- d2) guiding the screw through the first bore in the cover plate until the stop surface bears against the cover plate,
- d3) tilting the screw to move the stop section through the first bore,
- d4) tilting back the screw until the driving direction of the screw is oriented perpendicular to the cover plate in a region of the first bore,
- d5) guiding the screw through the first bore until the drilling tip bears against the base plate,
- d6) drilling a second bore with the drilling tip, and
- d7) guiding the screw through the first and second bores until the stop section bears against the base plate.
Dependencies are inferred from the claim text.