| 摘要 |
An arrowhead includes a threaded stud at the front end of the body for accepting an arrowhead tip. A longitudinal finger is disposed coaxial with the stud and projects forward therefrom. Engagement means are operatively associated with the tip for engaging the finger when an arrowhead tip is screwed onto the body to inhibit the tip from becoming unintentionally loosened with respect to the body. In another aspect of the invention, a blade is pivotably mounted to an arrowhead body such that the blade is pivotably movable between first and second positions. The blade lies adjacent the body when in the first position. A slot is formed in the body adjacent the mounting position so as to receive a portion of the blade therewithin when the blade is in the first position, and a recess is formed around the slot to provide a means of escape for mud.
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