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US 4,464,086 AGranted
Hob with cutting plates
AssigneeWilhelm Fette GmbH
InventorBernd Bentjens
Life of this patent
Estimating the term…
Abstract
A hob for making gears comprises a cylindrical mill base and a plurality of helix-like tooth segments positioned on the surface of the mill base adjacent to each other and each having a number of tooth cutters with cutting plates of hard metal. Tooth segments may be interchangeable if they are worn out.
Claims11
A hob for making gears, comprising a cylindrical base element;
- a plurality of even, helix-like tooth segments mounted on said base element and each carrying a number of tooth cutters with reversible cutting plates thereon;
- means for mounting the cutting plates on the tooth cutters;
- said base element being formed with a plurality of helix-shaped guide means, said segments being mounted in said guide means;
- and means for mounting the segments in said guide means, said segments being arranged in adjacent parallel rows on said base element, the cutters of the segments positioned in adjacent rows being displaced in a twist-like manner relative to an axis parallel directrix of the base element.
1 more element
Dependencies are inferred from the claim text.