Patent ID: 6620050
Filing Date: 2003-09-16
Classification: F16C,F16D,Y10T

Abstract:
In a universal joint comprising a slip joint in which a shaft is inserted into an interior of a hollow pipe for thereby implementing a rotation force transferring and slipping operation; a hollow yoke joint installed at both ends of the slip joint and having one side or portion which surrounds the pipe and shaft; an elastic means inserted between the pipe and shaft and between each end of the slip joint and the yoke joint for generating an elastic force in a radial direction; and transfer means installed between the pipe and shaft and between each end of the slip joint and the yoke joint, said transfer means being integrally formed with the pipe and shaft and the slip joint and the yoke joint for thereby enhancing a rotational and transferring force, the improvement wherein said transfer means is formed of engaging protrusions protruded from an end of the shaft inserted into the interior of the pipe and from an outer end of the pipe inserted into the interior of the yoke joint, and concave engaging grooves provided in an inner portion of the pipe and an inner portion of the yoke joint to correspond with the engaging protrusions.