| 摘要 |
A down-rigger trolling for attachment between a weight and a cable wherein the vane has a nose adjacent the cable connections and a tail remote from the connections so that the tail trails directing the vane nose-foremost and a fish-line release device mounted on or attached to the back of the vane rearwardly of cable attachment and positioned for release by the nose-foremost travel of the vane. The release device comprises a leg, a prong on the leg, and a spring arm which has a looped end releaseably engaging the prong. The leg, prong, and arm form a trap for a ring which is connected to a fish-line between the rod and the bait. Pull by a fish on the bait displaces the looped end of the spring arm off the prong opening the trap and releasing the ring thereby freeing the fish-line, bait, and fish from the down-rigger. Conversely the release device may be mounted to be released with the fish-line from an eye fixed on the vane. The vane may have a pulley sheave for leading the down-rigger cable down from and back to a hoist to double the weight handling ability of the hoist. The sheave engagement with the cable urges the vane toward lying parallel with the beam of the hoist which is transverse to the trolling direction, but the tail of the vane urges the vane toward parallel of the trolling direction so that the vane takes an intermediate plowing angular position with the vane facing obliquely sidewardly outwardly of the boat when trolled moving the entire assembly away from the boat.
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