Drive mechanism for a four wheel drive transverse...

Details Drive mechanism for a four wheel drive transverse... Drive mechanism for a four wheel drive transverse...

2007-05-08

2007-05-08

Pang, Roger (Department: 3681)

Planetary gear transmission systems or components

Variable speed or direction transmission combined with...

Differential is beneath prime mover or transmission

C475S220000

Reexamination Certificate

active

11085000

ABSTRACT:
A differential unit (102) is provided with a ring gear (10) that meshes with an output gear (21) of a transmission (101), an axle shaft (105) that is connected to front wheels, and a drive gear (11) that is fixed by screws to a plurality of boss portions (3e) and spaced apart from the ring gear (10). A transfer unit (103) disposed rearward of the differential unit (102) is provided with a driven gear (20) that meshes with the drive gear (11). Drive force is transmitted from the driven gear (20) to a propeller shaft (104), and the propeller shaft (104) transmits the drive force to rear wheels. First material-removed portions (12) made of concave portions are formed in an inner circumference of a portion of a case (1) to which the axle shaft (105) is mounted. Second material-removed portions (13) made of concave portions that extend in an axial direction of the axle shaft (105) are formed between the plurality of boss portions (3e).

REFERENCES:
patent: 4722413 (1988-02-01), Okubo
patent: 5505112 (1996-04-01), Gee
patent: 6231470 (2001-05-01), Cook et al.
patent: 6719660 (2004-04-01), Palazzolo
patent: 6827662 (2004-12-01), Nishiji
patent: 6837820 (2005-01-01), Baxter
patent: 7056255 (2006-06-01), Hay
patent: 2005/0221944 (2005-10-01), Shirato et al.
patent: 2006/0073930 (2006-04-01), Koehler et al.
patent: 9-150641 (1997-06-01), None

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