Webb Ziesenheim Logsdon Orkin & Hanson, P.C.
Geneva drive mechanism
 A Geneva drive mechanism includes a Geneva gear having arcuate recesses and radially outwardly opening slots arranged alternately in a circumferential direction thereof, and a driving member having an engaging element for engaging the slots. The driving member has a cam. The cam includes a plurality of rolling elements rotatable and movable circumferentially of the driving member. The rolling elements are arranged in a portion of the cam which contacts the arcuate surfaces when the engaging element is disengaged from the slots and rotation of the Geneva gear is restricted. 
Y Y F Y
Y10T Y10T F16H Y10T
additional additional inventional additional
Hiromitsu
Yamada