A hook coupling with a hook body (12), which has a hook-in opening (14), and with a closure latch (16) which can be adjusted between an open position and a closed position furthermore comprises: a blocking lever (26) which is displaceable between a blocking position, in which it blocks an adjustment of the closure latch (16) from the closed position towards the open position, and a release position in which it permits an adjustment of the closure latch (16) from the closed position towards the open position, and a triggering device (36) which, in its basic position, whenever blocking lever (26) is in the blocking position, prevents displacement of the blocking lever (26) into the release position, and which, when actuated out of its basic position, permits displacement of the blocking lever (26) into the release position. The triggering device (36) furthermore comprises a triggering component (38) which is mounted moveably on the closure latch (16) or preferably on the hook body (12) or on a component connected rigidly to the hook body (12) or the closure latch (16) and which is moveable between the basic position and a triggering position in which it permits the displacement of the blocking lever (26) into the release position.