Haymaking machines for tedding and windrowing

A haymaking machine for tedding and windrowing,

• comprising in combination:
• a frame,
• at least one raking wheel drivably mounted on said frame for rotation about a center axis,
• cam means centered about said center axis, forming an endless loop within a predetermined axial range therearound, and rigid with said frame,
• a plurality of support bearings,
• a plurality of tool-carrying arms operatively connected to said raking wheel and mounted in said support bearings, respectively, said arms being switchable between
• a tedding position, in which said arms project radially outwards, and
• a windrowing position, in which said arms extend in a direction substantially tangential of a circle inscribed in said raking wheel,
• each arm being oscillatable about its longitudinal axis, and including cam follower means connected near the inner end of each arm,
• guidance means adjacent said cam means for guiding each cam follower means into engagement with said cam means in said windrowing position from any position occupied by each cam follower means near the periphery of said cam means, and
• guide means, including a pin disposed at an end of each tool-carrying arm, facing said center axis, and stop means located near said axis and provided with a guide slot for receiving said pin,
• whereby each arm operatively oscillates about its longitudinal axis within a predetermined angle in said windrowing position, and is free from oscillation in said tedding position.