Patent ID: 7624561

Claim:
An apparatus for selectively positioning a merger connected to a chassis of a windrower, the windrower having a longitudinal axis, said apparatus comprising: a merger having a forward edge, a rearward edge, first and second opposing ends, and a conveyor disposed therebetween, said conveyor having at least one generally planar working surface, and a directional axis defined by a direction of crop material movement from said first end toward said second end by said conveyor, said merger being selectively movable between working and non-working positions; a lift shaft connected to said chassis and having an axis of rotation; at least first and second elongate lift arms connected at one end to said lift shaft for arcuate movement by said lift shaft, each said lift arm having a pivot connection distally away from said lift shaft, said lift arms being asymmetric to each other; a pivot axis aligned in a skewed relationship to said lift shaft axis of rotation; at least first and second connections pivotally connecting said pivot connections of said at least first and second lift arms and said merger, said at least first and second connections aligned on said pivot axis; an actuator connected to said lift shaft wherein actuation of said actuator causes said working surface to be moved in four distinct degrees of movement as said merger moves between said non-working and said working positions.