Configuration for demountable wheel rim flange/split lockring assemblies
AssigneeAircraft Braking Systems Corporation
InventorsDonald H. Smith, Richard J. Frank
Life of this patent
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Abstract
This invention provides an improved aircraft wheel rim wherein a demountable tire bead flange has an annular chamfer within the outboard end of the flange bore, and a split lockring which cooperates to maintain the flange on the wheel rim body has an outer surface chamfer which matches the flange bore chamfer, the angle of the flange bore and lockring surface chamfers being determined by the coefficient of friction of the material comprising the wheel rim assembly such that a compressive wedge-locking load force exists at the chamfer joint as may be imposed by inflation of a rim-mounted tire.
Claims6
In an aircraft wheel rim body having an integral inboardly positioned tire bead flange and an annular radial groove proximate its outboard end, an improved demountable and outboardly positioned tire bead flange and split lockring assembly comprising in combination:
- a demountable bead flange body defining a cylindrical flange bore which transitions into an annular chamfer at its outboard end;
- and
- a split lockring having an inboard end shaped for seating engagement within the annular radial groove in the rim body and which extends outboardly into a flange defining a cylindrical bore for mounted engagement on the rim body and an outer annular surface chamfer for contacting engagement with the demountable bead flange chamfer;
- the flange bore and lockring surface chamfers being matching angles within the range of 3.degree.-25.degree. as defined with reference to a rim axis and with respect to the coefficient of friction of the metal which comprises the demountable bead flange and lockring such that a compressive wedge-locking load force exists at the chamfer joint between the two upon inflation of a rim-mounted tire.
Dependencies are inferred from the claim text.