Hay rake twin tooth with continuous camber and lost-motion activation and a rake wheel using the same

摘要

A twin rake tooth includes a shank and working arc within each tooth which cooperate with ordinary rake wheels having rims. The shank within each tooth may have a slight camber which serves to stiffen the tooth against normal operational forces, but which allows the tooth to flex significantly when overloaded, through a lost-motion activation that occurs in cooperation with the rake wheel rim. In addition, the tooth has a generally smooth transition from one region of the tooth to the next, with no sharp bends, thereby substantially reducing any concentration of stress within the tooth.