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AssigneeTetra Laval Holdings & Finance S.A.
InventorsMats Bergström, Hans Johansson, Arild Larsen, Ingvar Mårtensson
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The invention relates to an apparatus and a method for marshalling out individual objects (1) from a row of such objects (1). The apparatus includes two pusher arms (8) placed one on each side of the row of objects (1). The apparatus also includes two arrest pins (20, 21) on either side of the row, one front (20) and one rear (21). The apparatus further includes a linkage (13) on each side of the row, axially connected to a pusher arm (8) and interconnected with each other via a spring (14), respectively. The pusher arms (8) are moved, in a closed position, forwards with the aid of a piston and cylinder assembly (19) and, in this movement, marshal out the first object (1) in the row. Thereafter, the pusher arms (8) open in that they enter into abutment against the front arrest pin (20). The linkage (13) ensures that the pusher arms (8) assume an open position. The pusher arms (8) thereafter move backwards in the open position with the aid of the piston and cylinder assembly (19). When the pusher arms (8) enter into abutment against the rear arrest pin (21), they begin to close and the linkages (13) ensure that the pusher arms (8) assume a closed position, whereafter the operational cycle may be repeated.
An apparatus for marshalling out individual objects from a row of objects, the apparatus including two pusher arms placed one on each side of the row of objects, the pusher arms being disposed to move reciprocally by means of a piston and cylinder assembly, and the pusher arms also being disposed to move between an open and a closed position, wherein the pusher arms are disposed to move between an open and a closed position by means of one device for each pusher arm, each device including a front and a rear arrest pin, secured along the row of objects, and a linkage which is axially interconnected with a pusher arm and which is spring-biased interconnected with the linkage at the second pusher arm.
A method of marshalling out individual objects from a row of objects wherein two pusher arms, in a closed position, are protracted by a piston and cylinder assembly, whereafter the pusher arms assume an open position and, in this position, are retracted by the piston and cylinder assembly, wherein said pusher arms begin to open when they each reach a front arrest pin;
Dependencies are inferred from the claim text.