Tractor arrangement

Claim 1

A SUSPENSION ARRANGEMENT FOR SUSPENDING AGRICULTURAL IMPLEMENTS FROM A TRACTOR IN FRONT THEREOF AS VIEWED IN THE DRIVING DIRECTION BY MEANS OF A THREE-POINT SUSPENSION LINKAGE, COMPRISING THREE POINT SUSPENSION MEANS INCLUDING A PLURALITY OF CONNECTING MEMBERS, SAID CONNECTING MEMBERS COMPRISING AN UPPER CONNECTING MEMBER AND TWO LOWER CONNECTING MEMBERS ADAPTED TO BE CONNECTED TO AN AGRICULTURAL IMPLEMENT, MEANS TO ENABLE SELECTIVELY RAISING AND LOWERING OF THE AGRICULTURAL IMPLEMENT INCLUDING FLUID-PRESSURE ACTUATED PISTON AND CYLINDER MEANS AND ROTATABLE LIFTING SHAFT MEANS OPERATIVELY CONNECTED TO SAID PISTON AND CYLINDER MEANS FOR OPERATION THEREBY, MEANS INCLUDING LIFTING ROD MEANS OPERATIVELY CONNECTING SAID TWO LOWER CONNECTING MEMBERS WITH SAID ROTATABLE LIFTING SHAFT MEANS, PROTECTIVE BOWSHAPED MEANS ARRANGED IN FRONT OF THE TRACTOR BODY AND EXTENDING SUBSTANTIALLY TRANSVERSELY TO THE DRIVING DIRECTION THEREOF, MEANS INCLUDING SECURING PARTS FOR MOUNTING SAID PROTECTIVE BOW-SHAPED MEANS ON SAID TRACTOR, AND PIVOTAL CONNECTING MEANS FOR PIVOTALLY CONNECTING THE SUSPENSION ELEMENTS OF SAID SUSPENSION MEANS INCLUDING SAID UPPER MEMBER AND SAID TWO LOWER MEMBERS, SAID CONNECTING MEMBERS, SAID WORKING CYLINDER AND PISTON MEANS AND SAID LIFTING SHAFT MEANS AT SAID PROTECTIVE BOW-SHAPED MEANS AND AT LEAST AT SOME OF THE SECURING PARTS THEREOF, SAID PROTECTIVE BOW-SHAPED MEANS INCLUDING A FRAME HAVING AN ESSENTIALLY RECTANGULAR CONFIGURATION AS VIEWED IN PLAN VIEW, OF WHICH THE LOWER RELATIVELY SHORTER SIDE IS OPEN AND OF WHICH THE RELATIVELY LONGER SIDE MEMBERS ARE ANGULARLY BENT REARWARDLY AT AN APPROXIMATELY RIGHT ANGLE.