Patent ID: 7715146

Claim:
In combination: a hub; and a clamp attachable to the hub to operably affix an article and the hub in rotation together, the clamp comprising: a web defining an abutment portion and a contact rib portion; and a plurality of protuberant members extending away from the web, substantially coplanar distal ends of the protuberant members disposed along a path defining a size that is smaller than an operable mating size of the hub when the abutment portion is clearingly disengaged from the hub, and the web characteristically shaped to translate longitudinal movement of the abutment portion toward the hub into radial movement of the protuberant members when the protuberant members operably contact the hub so that a force applied to abuttingly engage the abutment portion against the hub is transferred through the web to simultaneously move the contact rib portion longitudinally to an operable contacting engagement against the article and to move each of the protuberant members radially to an operable non-contacting disengagement from the hub.