Motor vehicle power steering gear

Details Motor vehicle power steering gear Motor vehicle power steering gear

1995-04-14

1995-10-31

Hill, Mitchell J.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

91375R, 91375A, 13762521, 180DIG7, 180DIG18, B62D 5083

Patent

active

054621321

ABSTRACT:
A motor vehicle power steering gear having a spool shaft connected to a steering wheel, a pinion head connected to a steered wheel, a torsion bar between the spool shaft and the pinion head, a valve for regulating a hydraulic steering assist boost pressure in response to rotation of the spool shaft from an on-center position relative to the pinion head against a restoring force of the torsion bar, and a quiet preload apparatus including a C-shaped spring around the spool shaft having a pair of resilient jaws, a drive pin on the spool shaft clamped with a preload between the resilient jaws, and a cushioned abutment on the pinion head clamped with the preload between the resilient jaws. The cushioned abutment includes a pair of radial cantilever springs which flex upon engagement with corresponding ones of the resilient jaws during forced oscillation of the pinion head back and forth through the on-center relative position of the spool shaft to minimize audible noise associated with such engagements.

REFERENCES:
patent: 3170535 (1965-02-01), Barton et al.
patent: 3273465 (1966-09-01), Eddy
patent: 4428399 (1984-01-01), Masuda et al.
patent: 4449601 (1984-05-01), Adams
patent: 4458580 (1984-07-01), Masuda et al.
patent: 4487225 (1984-12-01), Adams
patent: 4489755 (1984-12-01), Adams
patent: 4582086 (1986-04-01), Bacardit
patent: 4672884 (1987-06-01), Rosell et al.

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