Machine element or mechanism – Gearing – Nonplanetary gearing differential type
Reexamination Certificate
2000-10-25
2002-04-30
Wright, Dirk (Department: 3681)
Machine element or mechanism
Gearing
Nonplanetary gearing differential type
C192S050000, C192S048920
Reexamination Certificate
active
06378397
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a differential gearing device. More particularly, the present invention relates to a differential gearing device which does not need any bevel gear.
A conventional differential gearing device has a plurality of bevel gears. It is cumbersome to assemble bevel gears With many accessory parts.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a differential gearing device which has a plurality of one-way thrust bearings to perform differential gearing function.
Accordingly, a vehicle has a transmission shaft having an annular flange, a threaded end, a recess, and a cotter key inserted in the recess. A differential gearing device receives the transmission shaft. The differential gearing device comprises a beating cover, a first one-way thrust bearing, a hollow bearing block, a second one-way thrust bearing, and a positioning disk. The bearing cover has two through apertures, The first one-way thrust bearing has two first outer grooves. A first pin key is inserted in One of the first outer grooves of the first one-way thrust bearing. The hollow bearing block has a plate having four through holes, two inner grooves, and two threaded apertures. The second one-way thrust bearing has two second outer grooves. A second pin key is inserted in one of the second outer grooves of the second one-way thrust bearing. The first one-way thrust bearing and the second one-way thrust bearing are disposed in the hollow bearing block. The positioning disk has an inner thread. Two screws fasten the bearing cover and the hollow bearing block together. A plurality of bolts fasten the plate and a driven element together. The transmission shaft passes through the bearing cover, the first one-way thrust bearing, the hollow bearing block, the second one-way thrust bearing, the positioning disk, and the driven element. A nut engages with the threaded end of the transmission shaft. The first one-way thrust bearing is blocked by the annular flange of the transmission shaft.
REFERENCES:
patent: 1535634 (1925-04-01), Starr
patent: 1930454 (1933-10-01), Law
patent: 2222695 (1940-11-01), Velo
patent: 2778467 (1957-01-01), Lewis
patent: 3232369 (1966-02-01), Holloway
patent: 4720001 (1988-01-01), Jensen
patent: 5036939 (1991-08-01), Johnson et al.
patent: 5103690 (1992-04-01), Macpherson et al.
Jenn Jianq Co. Ltd.
Wright Dirk
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