Wing lock for agricultural implement

A wing of an agricultural implement, comprising:

• an inner portion;
• an outer portion;
• a pivotal coupling assembly configured to pivotally couple the inner portion and the outer portion, comprising:
• a wing lock pivotally coupled to the inner portion, wherein the wing lock has a contact surface configured to contact the outer portion to drive the outer portion into alignment with the inner portion;
• and
• a linear actuator coupled to the inner portion and to the outer portion, and configured to selectively:
• apply a downforce to the outer portion to urge the outer portion to rotate relative to the inner portion;
• and
• engage the wing lock to drive the contact surface of the wing lock into engagement with the outer portion and to block rotation of the wing lock relative to the inner portion;
• wherein the wing lock is configured to block rotation of the outer portion relative to the inner portion in response to the contact surface being engaged with the outer portion and rotation of the wing lock being blocked.

A pivotal coupling assembly for a wing of an agricultural implement, comprising:

• a wing lock pivotally coupled to an inner portion of the wing, wherein the wing lock has a contact surface configured to contact an outer portion of the wing to drive the outer portion into alignment with the inner portion;
• and
• a hydraulic cylinder coupled to the inner portion of the wing and to the outer portion of the wing, comprising a clevis and a pin coupled to the clevis, the hydraulic cylinder configured to selectively:
• apply a downforce to the outer portion of the wing to urge the outer portion to rotate relative to the inner portion;
• and
• engage the pin with the wing lock to drive the contact surface of the wing lock into engagement with the outer portion of the wing and to block rotation of the wing lock relative to the inner portion;
• wherein the wing lock is configured to block rotation of the outer portion relative to the inner portion in response to the contact surface being engaged with the outer portion and rotation of the wing lock being blocked.