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US 8,616,817 B2Granted
Screw nail
AssigneeRaimund Beck Nageltechnik GmbH
InventorStefan Siemers
Life of this patent
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AssigneeRaimund Beck Nageltechnik GmbH
InventorStefan Siemers
Estimating the term…
The present invention relates to a screw nail (1) for connecting plane components in dry construction by means of an automatic nailer, in particular for fixing surface elements onto a metallic substructure, the screw nail having a shaft (2) on one end region of which a head (3), and on the other end of which a hole formation region (5) extending to a point (4) or to a shape similar to a point (5) are formed, the shaft (2) being provided with a knurling (6), wherein the shaft (2) has a first knurling section (6a), in particular in a region of the shaft (2) adjacent to the hole formation region (5) in which the knurling (6) extends substantially parallel to a central axis of the shaft (2), and at least one second knurling section (6a) adjacent to the latter, in which an angle of elevation (5) of the knurling (6) formed between the central axis of the shaft (2) and the knurling (6) increasing constantly towards the head (3).
A screw nail (1) for connecting plane components in dry construction by means of an automatic nailer, in particular for fixing surface elements onto a metallic substructure, the screw nail having a shaft (2) on one end region of which a head (3), and on the other end of which a hole formation region (5) extending to a point (4) or to a shape similar to a point (5) are formed, the shaft (2) being provided with a knurling (6), characterised in that the shaft (2) has a first knurling section (6a), in particular in a region of the shaft (2) adjacent to the hole formation region (5) in which the knurling (6) extends substantially parallel to a central axis of the shaft (2), and at least one second knurling section (6a) adjacent to the latter, in which an angle of elevation (5) of the knurling (6) formed between the central axis of the shaft (2) and the knurling (6) increasing constantly towards the head (3).
Dependencies are inferred from the claim text.