Handling mechanism for a rectilinear movement with connecting perpendicular movement segments at the ends

Claim 1

Handling mechanism for imparting to a working member a reciprocal, essentially rectilinear, relatively long first movement segment, and a relatively short second movement segment connecting to the end of and running perpendicular to said first movement segment, especially a feeding mechanism with a horizontal transport movement and a vertical raising or lowering movement at either end thereof, the working member being carried by a first end of an arm, the other end of which being guided to follow a first path of movement perpendicular to the first movement segment, the arm being driven by a reciprocally pivoting crank, the pivot axis of which intersects an extension of said first path of movement and said crank being pivotally joined via a crank pin to the arm at a pivot point located on said arm, so that during said first movement segment when the point moves along a circular arcuate path of movement, the square of the distance between the pivot point of the arm and the other end of the arm is essentially equal to the product of the distance between the pivot point of the arm and the first end of the arm and the distance between the pivot point of the arm and the axis of the crank, characterized in that the crank pin is guided by guide means which during said second movement segment guide the pivot point of the arm along a second path of movement which is connected to the circular arcuate path and is rectilinearly parallel to the first movement path.