| 摘要 |
A fish lure that alternately dives and surfaces has a hollow body through which water flows as the lure is drawn through water on a line, and an air catching means such as a skirt on the trailing end of the body. The trailing end can be made of a material relatively heavier than water and can be flared to produce an air-retardation low-pressure area at the trailing end. When the air catching means holds water only, the lure is directed upwards to the surface, causing ingestion of air. The ingested air trapped in the air catching means offsets the trailing end weight and causes the lure to tilt downwards temporarily, until the air is lost. The alternating effect may be enhanced by movable-body noisemakers attached within the hollow body and having weighted balls that roll fore and aft as the lure tilts. The variations in lure depth, bubble emission and in emitted sounds due to variations in tilt and air content make the lure especially interesting to fish.
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