Patent ID: 6881002

Claim:
A coupler comprising: first and second spaced-apart ribs each defining first and second bores, said first bore of said first rib aligned with said first bore of said second rib on a first pin-on axis, and said second bore of said first rib aligned with said second bore of said second rib on a second pin-on axis; a first hook assembly comprising a first hook adapted to receive a first associated attachment pin, said first hook assembly fixed relative to said first and second ribs; a second hook assembly comprising a second hook adapted to receive a second associated attachment pin, said second hook assembly selectively pivotable relative to said first and second ribs toward and away from said first hook assembly; and an actuator operatively connected to said second hook assembly to pivot said second hook assembly selectively relative to said first and second ribs, wherein said actuator comprises a screw jack assembly including a rotatable screw member comprising a driving head adapted for driving connection with a manual tool.