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Differential gear device

  • US 10,704,664 B2
  • Filed: 11/01/2018
  • Issued: 07/07/2020
  • Est. Priority Date: 11/04/2017
  • Status: Active Grant
First Claim
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1. A differential gear device comprising:

  • a differential casing rotatable about an axis and having a pair of through-holes;

    a pinion shaft accommodated within the differential casing, so as to extend through the through-holes;

    a pair of pinion gears fitted on an outer circumferential surface of the pinion shaft such that the pinion gears are rotatable relative to the pinion shaft;

    a pair of side gears meshing with the pinion gears; and

    a pair of pinion washers interposed between the differential casing and the respective pinion gears,wherein each of the pair of pinion washers has a retainer structure partially inserted through a gap formed between an inner circumferential surface of a corresponding one of the pair of through-holes of the differential casing and the outer circumferential surface of the pinion shaft, the retainer structure being held in contact with a corresponding one of opposite axial end faces of the pinion shaft, to prevent axial movements of the pinion shaft through the through-holes.

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