| 摘要 |
An expandable blade broadhead has a plurality of blades pivotally mounted on a circular ring. The ring is retained between a cap mounted on a stud extending from the front end of a ferrule, and the ferrule. A hardened steel tip is slidably mounted in a bore in the cap, and is formed with a rearwardly facing cam surface. The blades are normally held retracted in slots in the ferrule body and cap, and the tip is normally held is an extended position. When the broadhead impacts a target the tip is forced rearwardly forcing the cam surface against the blades pivoting them out of the slots to a rearwardly inclined position. To facilitate extraction the blades may pivot freely to a forwardly inclined position and the rear edges of the blades are sharpened.
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