Machine element or mechanism – Gearing – Interchangeably locked
Patent
1987-09-29
1989-02-21
Hermann, Allan D.
Machine element or mechanism
Gearing
Interchangeably locked
74 8914, 74473R, 180247, 192142R, 192143, B60K 2016, B60K 2308
Patent
active
048054720
ABSTRACT:
A rotary torque transmission apparatus for a 4-wheel drive vehicle in which a rotary torque of a worm wheel of 4-wheel drive vehicle provided with a reciprocably movable fork shaft, to which a shaft fork for moving a 2-4 wheel change over slider to and fro is fixed, is transmitted to an output shaft via a torsion spring, wherein the worm wheel driven by a motor is disposed on an output shaft supported by a casing so as to be rotatable relative to the output shaft; and a pair of rotary plates so arranged as to be rotatable together with the worm wheel is disposed inside the torsion spring arranged between a pair of fixed plates fixed to the output shaft in such a way that each end of the torsion spring is retained between one rotary plate and one fixed plate disposed on the opposing side to each other, respectively.
REFERENCES:
patent: 3132531 (1964-05-01), Boughner
patent: 4550625 (1985-11-01), Martin et al.
patent: 4567969 (1986-02-01), Makita
patent: 4619151 (1986-10-01), Trachman et al.
patent: 4664217 (1987-05-01), Welch et al.
Aoki Kongoh
Kano Junichi
Aisin Seiki Kabushiki Kaisha
Hermann Allan D.
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