Kraftübertragungsprofil, insbesondere an einem Mehrkant-Schraubwerkzeug

摘要

The invention relates to a force transmission structure (5) especially for a screwing wrench with multiple corners. Said invention is configured for an inner multiple cornered mating profile especially for a screw with a six-cornered inner case profile. The force transmission structure is constructed with equal multiple corners (13) whose flanks border one another in a circumferential direction. The diameter contour line (K) of each flank possesses two convex curvature lines (10) which are interspaced and the interspacing area (11) recoils between said curvature lines (10) and connecting tangent lines (T), said tangent lines consisting of both crowns (S) of the convex curvature lines (10). In order to transmit high levels of torque, the invention provides that the section (12) of the curvature lines between the crown (S) and the multiple corner (13) is either rectilinear or its curvature is flatter than that of the convex curvature line (10).