Method for profiling a flat key, and flat key produced according to the method
AssigneeC. Ed. Schulte Gesellschaft mit beschrankter Haftung Zylinderschlossfabrik
InventorsMichael Reine, Thomas Wallberg
Life of this patent
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Abstract
A method for profiling the broad sides of a flat key, a key blank being clamped in a clamping device so that the broad side of the key blank is exposed. Guide grooves and variation grooves which are complementary to the longitudinal sectional profile of the cutter teeth are milled into the broad side by advance in the longitudinal direction of the key, in one work operation, using a milling cutter that has cutter teeth on its peripheral surface and rotates about a cutter shaft. To produce undercut grooves, the axis of the cutter shaft is inclined at an angle of inclination relative to the longitudinal center plane of the key, ribs of the cutter teeth producing an undercut guide wall using at least one rib.
Claims15
A method for profiling at least one broad side of a flat key, comprising the steps of:
- clamping a key blank in a clamping device so that the broad side of the key blank is exposed;
- and milling guide grooves and variation grooves which are complementary to a longitudinal sectional profile of cutter teeth into the broad side by advancing in a longitudinal direction of the key, in one work operation in a single pass of the key blank, using a milling cutter that has cutter teeth on its peripheral surface and rotates about a cutter shaft, the milling producing an undercut guide wall using at least one rib by inclining a rotational axis of the cutter shaft at an angle of inclination relative to a longitudinal center plane of key ribs of the cutter teeth that is greater than 0° and less than 90°.
Dependencies are inferred from the claim text.