Title: Wheel rim

Abstract: A wheel rim construction that cooperates with the tire bead seat to insure retention of the tire, even under a "run flat" condition. The bead seat portion of the rim is formed with a plurality of circumferentially extending radial projections that cause gripping of the tire bead to form a mechanical interlock between the projections and wheel flange. The radial projections are formed during the roll forming of the wheel rim by extruding the rim material into grooves in the upper finishing roll so that the permanently formed projections lie radially outward of the basic rim profile.

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Inventors: Evans, James L. (Ypsilanti, MI, US)
Main, John A. (Plymouth, MI, US)

Application Number: 848048
Filing Date: 1977-11-03
Publication_date: 1980-02-26
Assignee: Kelsey-Hayes Co. (Romulus, MI)
Primary Class(es): 152/381.4 301/95.101
Other Classes:
US Patent Ref:

1996855	Apr, 1935	Cheswright	285/239.
3210100	Oct, 1965	Lowle, et al.	285/239.
3664405	May, 1972	Polyner	152/381.
3915215	Oct, 1975	Nebout	152/379.
3977727	Aug, 1976	Glasenapp et al.	301/97.

Other Refs: 237156

Sep, 1959	AU

Primary Examiner: Skaggs, H. Grant
Assistant Examiner:
Attorney: Skinkiss; Ralph J.