Steering gear ratio changing apparatus

Details Steering gear ratio changing apparatus Steering gear ratio changing apparatus

1990-02-05

1991-07-16

Marmor, Charles A.

Motor vehicles

Surface effect vehicles

Dynamic seal or fluid curtain

180140, 180141, 91375A, B62D 508

Patent

active

050317148

ABSTRACT:
A steering gear ratio changing apparatus includes a first and second steering shafts arranged to be coaxial with each other. The first steering shaft is coupled to a steering wheel of a vehicle and rotatable integral therewith. The second steering shaft is coupled to a steering gear mechanism and arranged to be rotatable. First pawls are formed on one end of the first steering shaft and arranged at equal intervals along the circumferential direction of the shaft. Second pawls are formed on one end of the second steering shaft, which oppose the end of the first steering shaft, and are arranged at equal intervals along the circumferential direction of the shaft. The first and second steering shafts are coupled with each other by a torsion bar and held thereby so that the first and second pawls are engage with one another with a gap between any two adjacent first and second pawls. The width of the gaps is adjusted by actuators so as to cause a relative rotation between the first and second steering shafts.

REFERENCES:
patent: 3657967 (1972-04-01), Suzuki
patent: 3772962 (1973-11-01), Suzuki
patent: 3930554 (1976-01-01), Ward
patent: 4481866 (1984-11-01), Matouka
patent: 4561516 (1985-12-01), Bishop et al.
patent: 4715464 (1987-12-01), Nakamura et al.
patent: 4765428 (1980-08-01), Kawakami et al.

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