| 摘要 |
A homokinetic joint assembly for transmitting torque between a pair of shaft members is formed with an outer joint member including an internal cavity defined by an interior wall having grooves formed therein and including generally spherically shaped portions. The arrangement of the grooves is such that each groove of the inner joint member cooperates with the groove of the outer joint member to jointly receive in engagement therebetween one of the ball members, with the respective cooperating grooves of the inner and outer joint members being formed to define therebetween a jaw-like recess for the ball members which expands toward the open side of the internal cavity of the outer joint member. The cage is arranged with its exterior wall guided in the internal cavity of the outer joint member and with its interior wall guided along the exterior wall of the inner joint member. The cage interior wall and the inner member exterior wall are in abutting relationship with each other along portions thereof closest one side of the joint assembly with the inner joint member being reduced in size extending in a direction from said abutting wall portions toward the opposite side of the joint assembly such that the grooves of the inner joint member present a substantially constant depth. The cage exterior wall and the interior wall of the outer joint member are also in abutting relationship along the portions thereof remote from the one side of the joint assembly. The abutting portions of the cage interior and exterior walls with the walls of the inner and outer joint members extend over no more than about two-thirds of the total overlapping dimensions of the walls taken in a direction axially of the joint assembly and on one side of the joint assembly facing toward the opening of said internal cavity of said outer joint member the interior wall of the cage is spaced from the exterior wall of the inner joint member in order to form a lubricant wedge or cone therebetween. On the opposite side of the joint assembly, the exterior wall of the cage is spaced from the interior wall of the outer joint member and in each case the spacing between the wall portions terminates where the wall portions come into abutting relationship.
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