Gear type flexible coupling
AssigneeRenold PLC
InventorEdward E. Allen
Life of this patent
Estimating the term…
Abstract
A hob or shaper cutter for making a hub for a misalignment gear coupling having a hub and a sleeve. The hob or shaper cutter has cutting edges. Each cutting edge being inclined at a different angle to the center line of the tooth. The cutting edges are adapted to cut tooth flank surfaces having three adjacent involute shaped areas. Each involute shaped area having a different pressure angle than the involute area adjacent it. The involute areas of each tooth result in teeth with flanks that are generally cylindrical shaped, whereby hub treeth operate with a minimum of interferfence with sleeve teeth when operating with the hub misaligned with the sleeve.
Claims3
A gear for a flexible gear coupling,
- said gear having a plurality of external teeth,
- each of said teeth having a top, a root and a flank,
- each said flank comprising a first involute surface adjacent said top, a third involute surface adjacent said root and a second involute surface between said first involute surface and said third involute surface,
- said involute surfaces each having a different pressure angle from the other and conforming generally to a part of cylindrical surface.
Dependencies are inferred from the claim text.