Power assisted gear systems

Details Power assisted gear systems Power assisted gear systems

1977-09-21

1980-09-16

Truhe, J. V.

Electricity: motive power systems

Electric motor with nonmotor driving means

Manual driving means

180 791, H02K 700

Patent

active

042232546

ABSTRACT:
A steering gear system includes a rack driven by a pinion. When the torque on the pinion reaches a predetermined level, the steering column to which the pinion is attached moves axially. The axial movement of the steering column brings a disc connected with it into electrical conductive contact with a fixed electric contact. This energizes an electric motor. Further axial movement of the steering column causes the disc to contact a friction clutch plate which is connected with a pulley driven by the electric motor. This results in frictional engagement between the disc and the friction clutch plate and a power assist from the electric motor to move the rack which is a function of the torque applied to the steering column.

REFERENCES:
patent: 1948487 (1934-02-01), Berry
patent: 2021706 (1935-11-01), Twyman
patent: 2553795 (1951-05-01), Staude
patent: 2761326 (1956-09-01), Herbenar et al.
patent: 2869383 (1959-01-01), Rapp et al.
patent: 3511104 (1970-05-01), Piat
patent: 3893534 (1975-07-01), Steinmann
patent: 3983953 (1976-10-01), Bayle

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