Planetary gear transmission systems or components – Differential planetary gearing – Bevel gear differential
Reexamination Certificate
2005-09-27
2005-09-27
Lewis, Tisha (Department: 3681)
Planetary gear transmission systems or components
Differential planetary gearing
Bevel gear differential
Reexamination Certificate
active
06949047
ABSTRACT:
Differential gears which obtain adequate differential motion limiting action under heavy loading, and switch between a differential motion condition and a differential motion limiting condition, inside a differential case are provided a pair of left and right pressure rings, which move freely in the direction of the wheel axles but are incapable of relative turning, the inner diameter being larger than that of side gears; a pair of clutch means on the two pressure rings; urging means for urging the two pressure rings such that the two pressure rings clearance narrows; and actuation means for actuating the pressure rings against the force of the urging means, in accordance with the increases in the relative turning torque between the pinion shaft and the differential case during differential motion, and activating the clutch means.
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Armstrong Kratz Quintos Hanson & Brooks, LLP
Lewis Tisha
Os Giken Co., Ltd.
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