KNOCK-ON SWEEP STRUCTURE HAVING MOUNTING SIDE SURFACES DIVERGING AT DIFFERENT RATES IN THE WEDGING DIRECTION

摘要

Knock-on sweep structure includes a wedge adapter having opposite sides with upper and lower surfaces that engage the wrap-around portion of the swe ep stem. The upper and lower surfaces diverge at different rates from a narrow end to a wide end to improve sweep-adapter contact. In one embodiment, the upper an d lower surfaces on each side are planar and define a compound angle. The differential rate of divergence assures early contact between the adapter an d stem at a plurality of spaced locations for improved retention and more reliable swe ep positioning.