| 摘要 |
A device which is attached to a fishing line to bring the lure to the desired temperature level. The device has an elongated body with a slanted front end and angled fins at the rear end. The body is mounted to a keel so that the body can rotate about its longitudinal axis. A latch member which is controlled by a bimetallic element holds the body in non-rotating relation with the keel until a sufficient change in water temperature is encountered. At this time the latch shifts to its opposite position permitting 180 DEG rotation of the body so that the slanted forward end thereof will cause the device to move upwardly or downwardly toward the desired temperature zone. A line connects the forward end of the keel to the fishing rod and a second line connects the rear end of the keel to the lure.
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