Patent ID: 8317106

Claim:
An attachment arrangement comprising: a body; an attachment component; a fastener; one of the body and the attachment component defining a protrusion and the other of the body and the attachment component defining a recess configured to receive the protrusion; wherein the fastener is operative to resist separation of the body and the attachment component when the protrusion is received in the recess; wherein each of the protrusion and the recess defines a surface profile, the surface profiles cooperating with each other to force the body and the attachment component progressively apart from each other against the operation of the fastener as the body and the attachment component are rotated in relation to each other when the protrusion is received in the recess; wherein the body and the attachment component are rotated about an axis that extends in substantially a same direction as a direction in which the body and the attachment component move together and apart when the protrusion is being received in and removed from the recess.