Patent ID: 7780565
Filing Date: 2010-08-24
Classification: F16H

Abstract:
1. A differential device for differentially distributing a driving force to axles along an axis, the differential device comprising: a case being capable of rotation about the axis, the case including a flange configured to receive the driving force, and a shaft crossing the case perpendicularly to the axis; an opening defined by a peripheral border on an outer peripheryof the case so as to allow access into the case, the peripheral border being formed to be line-symmetrical about a line parallel to the axis and including lateral extremities defined by parallel portions that connect two curves and being respectively furthermost among any portions of the peripheral border from the line to define a widest portion and deviated from a center of the shaft toward a direction opposite to the flange along the axis; a differential gear set housed in and drivingly coupled to the case, the differential gear set including an input gear rotatable around the shaft and output gears so combined with the input gear as to differentially distribute the driving force to the output gears, the output gears being drivingly coupled to the axles; and a through hole configured to fix the shaft, the through hole being defined on the case and so positioned that the circular plane realized by rotating the center of the shaft about the axis does not cross the lateral extremities.