Force transmission structure especially for a screwing wrench with multiple corners
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United States of America Patent
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Jul 24, 2001
Grant Date -
N/A
app pub date -
May 19, 2000
filing date -
Sep 1, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a force transmission structure especially for a screwing wrench with multiple corners. The 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 whose flanks border one another in a circumferential direction. The diameter contour line of each flank possesses two convex curvature lines which are interspaced and the interspacing area recoils between the curvature lines and connecting tangent lines, the tangent lines consisting of both crowns of the convex curvature lines. In order to transmit high levels of torque, the invention provides that the section of the curvature lines between the crowns and the multiple corners is either rectilinear of its curvature is flatter than that of the convex curvature line.
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