Patent ID: 6408719
Filing Date: 2002-06-25
Classification: F16H,Y10T

Abstract:
A differential mechanism comprising:a differential case assembly having a casing body connected to a source of drive force and a toothed cap member coupled with said casing body to cover one opened end of said casing body; a plurality of input blocks housed in said case assembly and being movable circumferentially of said case assembly in correspondence with rotation of said casing body; a pair of output cam members for clamping said input blocks relatively slidably and being independently rotatable owing to a frictional force produced with respect to each of said input blocks to thereby initiate a differential motion on an output side of said differential mechanism: said input blocks being provided in at least two different types and having projected portions, said projected portions of said input blocks of one type having a first upper end width, said projected portions of said input blocks of another type having a second upper end width different from said first upper end width; and said casing body having first and second axial grooves formed on an inner peripheral surface thereof such that they extend axially of said differential mechanism, said first axial grooves being shaped complementarily to the projected portions of the input blocks of one type having a first upper end width for fitting engagement therewith, said second axial grooves being shaped complementarily to the projected portions of the input blocks of said another type having a second upper end width different from said first upper end width.