Means for controlling discharge door movement
AssigneeDeere & Company
InventorGlenn Dale Head
Life of this patent
Estimating the term…
Abstract
An improved means for controlling movement of the discharge door on an agricultural machine between its open and closed position, wherein the movement of associated machine parts is utilized to incur controlled movement of the discharge door.
Claims11
In an agricultural machine having a mobile frame, a crop-receiving container on the frame and including a discharge opening, a door hinged at its lower portion to the container and movable between open and closed positions as respects said opening;
- the improvement residing in means for controlling movement of the door between its open and closed position, comprising:
- a swingable bell crank having a pair of arms carried by the container for movement between first and second positions;
- a guide carried by the container above the door hinge;
- a cable trained over the guide and connected between one bell crank arm and the door for incurring opening of the door as the member moves toward its first position and closing of the door as the member returns toward its second position;
- and means movable by the other bell crank arm for engaging the cable to increase the tensioning force transferred to the cable by the bell crank as the bell crank moves.
In an agricultural machine having a mobile frame, a crop-receiving container on the frame and including a discharge opening, a door hinged at its lower position to the container and movable between open and closed positions as respects said opening;
- the improvement residing in means for controlling movement of the door between its open and closed position comprising:
- a swingable bell crank having a pair of arms carried by the container for movement between first and second positions;
- a guide carried by the container above the door hinge;
- a cable trained over the guide and connected between one bell crank arm and the door for incurring opening of the door as the member moves toward its first position and closing of the door as the member returns towards its second position;
- and means including a shock absorbing element carried by and movable with the other bell crank arm for engaging the cable to increase the tensioning force transferred to the cable by the bell crank as said bell crank moves.
In an agricultural machine having a mobile frame, a crop-receiving container carried by the frame and including a discharge opening, a door hinged at its lower portion to the container and movable between open and closed positions as respects said opening;
- the improvement residing in means for controlling movement of the door between its open and closed position, comprising:
- a flexible element connected at one end to an upper portion of the door;
- a movable member on the container and connected to the other end of the flexible element for relaxing said flexible element as the door moves to its open position and for tensioning said element to move the door to its closed position;
- and an arcuate part for applying additional tensioning to the flexible element, carried by said member and movable therewith, fixed at its one end, having a lost motion connection at its other end and being of resilient material so as to yield upon engagement with the flexible element, and bowed away from the flexible element so as to apply additional tensioning to said element to assure door closing as the member moves the flexible element and the door towards a closed position.
Dependencies are inferred from the claim text.