Transfer case operation mode shifting apparatus for a four-wheel

Details Transfer case operation mode shifting apparatus for a four-wheel Transfer case operation mode shifting apparatus for a four-wheel

1988-07-29

1989-07-11

Wright, Dirk

Machine element or mechanism

Gearing

Interchangeably locked

180249, 74335, F16H 506

Patent

active

048460109

ABSTRACT:
A transfer case operation mode shifting apparatus is actuated by an electric actuator including an electric motor and a differential power transmitting mechanism which transmits a driving power for axially moving a differential gear shift member to shift a center-differential gear assembly between a four-wheel and a two-wheel drive mode of operation. The driving power transmitted by the differential power transmitting mechanism and acting on the differential gear shift means is smaller when shifting the center-differential gear assembly from the four-wheel to the two-wheel drive mode of operation than when shifting back the center-differential gear assembly from the two-wheel to the four-wheel drive mode of operation.

REFERENCES:
patent: 4291586 (1981-09-01), Buetemeister
patent: 4428248 (1984-01-01), Bronckson et al.
patent: 4567969 (1986-02-01), Makita
patent: 4619151 (1986-10-01), Trachman et al.
patent: 4664217 (1987-05-01), Welch et al.

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