Apparatus for securing exercise weights on shafts
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United States of America Patent
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Apr 19, 1988
Grant Date -
N/A
app pub date -
Dec 12, 1986
filing date -
Dec 12, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A securing mechanism for holding an exercise weight-disc on the end of the lifting bar while allowing a modicum of rotational movement in the disc as the bar is being manipulated by the exerciser. A sleeve-like collarpiece, having a smooth cylindrical bore which has therein a serrated flange, is fitted over the threaded end of a weight lifting bar that has a longitudinal groove passing through the set of threads. The collarpiece is slid onto the threaded end, and into registry with a weight-disc and thereafter rotated so that its rotatable gasket-surfaced face snubs against the weight-disc by virtue of the serrated flange engaging and working in cooperation with the bar threading. A novel ball-bearing/race, inserted in the collarpiece face, and to which the gasket is affixed, provides a rotatably movable base which will allow the weight-disc(s) to undergo a somewhat constrained rotation as the bar is twisted during lifting exercises.
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