Appeal No. 2002-1603
Application 09/320,853
APPENDIX
1. A tripod type constant velocity universal joint
comprising:
an outer member having three axially extending track grooves
formed in an inner circumferential surface thereof, each of the
track grooves having roller guide surfaces on a pair of opposing
side walls thereof,
a tripod member having three radially projecting trunnions,
and
rollers rotatably carried on the trunnions, respectively,
through a series of cylindrical rolling elements, the rollers
being accommodated in the track grooves, respectively, so that
the rollers are movable axially of the outer member with each
said roller rolling along one of the opposing roller guide
surfaces, the cylindrical rolling elements rolling directly on an
outer circumferential surface of the trunnion, wherein each said
roller has an annular radial projection on a cylindrical inner
circumferential surface of said roller at each axial end thereof,
and said annular projections of said roller and a series of said
rolling elements retained along a groove formed in a central
section of said cylindrical inner circumferential surface of said
roller form an independent assembly that prevents said rolling
elements from dispersing prior to mounting said assembly on said
trunnion.
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