Patent ID: 6679348
Filing Date: 2004-01-20
Classification: B60K

Abstract:
A vehicular two-wheel/four-wheel drive switching device, comprising:a driving shaft extending to a drive side of said switching device, a driven shaft extending from a driven side of said switching device, an inner ring and an outer ring having a generally annular clearance formed therebetween, one of said inner ring and said outer ring being coupled to said driving shaft and the other of said inner ring and said outer ring being coupled to said driven shaft, a plurality of connecting/disconnecting members provided in said clearance between said inner ring and said outer ring for selectively connecting and disconnecting said inner ring and said outer ring, a switching mechanism for selectively positioning said connecting/disconnecting members in one of a position in which said inner ring and said outer ring are connected and in a position in which said inner ring and said outer ring are disconnected, a casing receiving said inner ring, said outer ring, said connecting/disconnecting members, and said switching mechanism, and first and second oil seals provided in respective locations at a predetermined interval in a longitudinal direction of said driven shaft for sealing said casing so that said switching device can be lubricated independently of other actuating parts.