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AssigneeBaier & Michels GmbH & Co. KG
InventorOlaf Ambros
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A thread-forming screw comprising, at least in part, a shaft (1.1) provided with a screw thread (2) and further comprising a screw tip (1.2) at one end of the shaft (1.1), wherein the shaft (1.1) comprises a thread-forming screw-threaded portion (4) that extends away from the screw tip (1.2) and an adjoining load-bearing screw-threaded portion (3), wherein the load-bearing screw-threaded portion (3) has a round cross-section, characterized in that the load-bearing screw-threaded portion (3) displays, in the direction away from the screw tip (1.2), an increase d in a flank diameter DF and/or an outside diameter DA of the screw thread at a gradient of from 1:50 to 1:500 based on a length LG of the load-bearing screw-threaded portion (3), preferably at a gradient DA or DF to LG of from 1:100 to 1:400, wherein the increase d in the flank diameter DF and/or the outside diameter DA remains constant over the length LG of the load-bearing portion.
A thread-forming screw comprising, at least in part, a shaft provided with a screw thread and further comprising a screw tip at one end of the shaft, wherein the shaft comprises a thread-forming screw-threaded portion that extends away from the screw tip and an adjoining load-bearing screw-threaded portion, wherein the load-bearing screw-threaded portion has a round cross-section, wherein the load-bearing screw-threaded portion displays, in the direction away from the screw tip, an increase d in at least one of a flank diameter DF and an outside diameter DA of the screw thread at a gradient of from approximately 1:50 to 1:500 based on a length LG of the load-bearing screw-threaded portion, preferably at a gradient DA or DF to LG of from approximately 1:100 to 1:400, wherein the increase d in at least one of the flank diameter DF and the outside diameter DA remains constant over the length LG of the load-bearing portion.
Dependencies are inferred from the claim text.