Method of wheel manufacture for correcting rotational non-unifor

Details Method of wheel manufacture for correcting rotational non-unifor Method of wheel manufacture for correcting rotational non-unifor

1981-02-17

1982-10-19

Yost, Frank T.

Cutting

Processes

Blanking

29159R, 2915901, 83452, 83620, 83926R, 301 5B, B26F 102

Patent

active

043544070

ABSTRACT:
A method of punching a wheel for a pneumatic tire and wheel assembly manufactured with mounting holes offset from the geometric center to locate the low point of the first harmonic of radial runout adjacent a given angular location, such as the valve hole, so that, when a tire is mounted thereon with the high point of the first harmonic of radial force variation aligned with the valve hole, the respective harmonics cancel each other to provide a tire and wheel assembly with enhanced rotational characteristics. In an apparatus for forming the wheel mounting holes by axially reciprocating a piercing tool against a wheel disc while the bead seats are clamped between wheel locating jaws, axially opposed jaw pairs are centered on an axis offset from the axis of reciprocation such that the centerline of the mounting holes is correspondingly eccentrically offset from the average bead seat axis.

REFERENCES:
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patent: 3046058 (1962-07-01), Hamer
patent: 3207557 (1965-09-01), Hunter
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patent: 3581550 (1971-06-01), Waterbury
patent: 3808660 (1974-05-01), Wik
patent: 3951563 (1976-04-01), Ravenhall
Main, "Design and Measurement of Truer Running Wheels", Society of Automotive Engineers, 1968.

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