Piston lock system for agricultural equipment
AssigneeCNH Industrial America LLC
InventorsTim Oliebos, Stijn Bailliu, Bjorn Depoortere
Life of this patent
Estimating the term…
Abstract
A piston lock system having first and second cylinders, first and second pistons telescopically connected to the cylinders, and first and second piston locks. The piston locks are movable in a transverse direction within a planar region between the cylinders, between unlocked positions in which the piston locks are not located between the free ends of the cylinders and the free ends of the piston, and locked positions in which the piston locks are located between the free cylinder ends and the free piston ends. A control link is operatively connected to the piston locks, and configured to simultaneously move the piston locks between the locked and unlocked positions.
Claims16
An agricultural equipment assembly comprising:
- a first actuator comprising a first cylinder and a first piston telescopically movable in the first cylinder;
- a second actuator comprising a second cylinder and a second piston telescopically movable in the second cylinder;
- a first lock pivotally connected to the first cylinder and movable between a first unlocked position in which the first lock does not prevent the first piston from moving relative to the first cylinder, and a first locked position in which the first lock inhibits the first piston from moving relative to the first cylinder;
- a second lock pivotally connected to the second cylinder and movable between a second unlocked position in which the second lock does not prevent the second piston from moving relative to the second cylinder, and a second locked position in which the second lock inhibits the second piston from moving relative to the second cylinder;
- and
- a control link operatively connecting the first lock to the second lock, and configured to simultaneously move the first lock between the first locked position and the first unlocked position, and the second lock between the second locked position and the second unlocked position.
An agricultural equipment assembly comprising:
- a first actuator comprising a first cylinder and a first piston telescopically movable in the first cylinder;
- a second actuator comprising a second cylinder and a second piston telescopically movable in the second cylinder;
- a first lock movable between a first unlocked position in which the first lock does not prevent the first piston from moving relative to the first cylinder, and a first locked position in which the first lock inhibits the first piston from moving relative to the first cylinder;
- a second lock movable between a second unlocked position in which the second lock does not prevent the second piston from moving relative to the second cylinder, and a second locked position in which the second lock inhibits the second piston from moving relative to the second cylinder;
- and
- a control link operatively connecting the first lock to the second lock, and configured to simultaneously move the first lock between the first locked position and the first unlocked position, and the second lock between the second locked position and the second unlocked position;
- wherein:
- the first lock comprises a first lock body that is located along a first telescopic path between a first stop surface on the first piston and a first stop surface on the first cylinder when the first lock is in the first locked condition to thereby inhibit a contracting telescopic movement of the first piston relative to the first cylinder, and the first lock body is not located along the first telescopic path when the first lock is in the first unlocked condition, and
- the second lock comprises a second lock body that is located along a second telescopic path between a second stop surface on the second piston and a second stop surface on the second cylinder when the second lock is in the second locked condition to thereby inhibit a contracting telescopic movement of the second piston relative to the second cylinder, and the second lock body is not located along the second telescopic path when the second lock is in the second unlocked condition.
Dependencies are inferred from the claim text.