Bowfishing arrowhead with improved barb release

摘要

An arrowhead for bowfishing supports pivoting barbs that may refracted rearward to pass through a fish and then extended to retain the fish on the arrow. The barbs provide a truncated stop surface striking a rear of the arrow tip when the arrow tip is tightened on the arrowhead to prevent their forward motion from the extended position when the tip is tightened on the arrowhead and yet to allow such motion when the tip is slightly loosened but not removed. The barbs are offset with respect to their pivot point so that a slight loosening of the arrow tip also allows the barbs to pass forward over the arrow tip for retraction of the fish from the arrow while the tip is retained on the arrowhead.

主权项

1. An arrowhead comprising:
an arrowhead body extending along an arrow axis between a first and second end, the first end attachable to an arrow shaft that may extend rearwardly from the arrowhead body along the arrow axis and a second end providing a threaded coupling extending along the arrow axis; an arrow tip threadably attachable to the threaded coupling of the arrowhead body to be movable by rotation between a tightened and loosened position both as attached to the arrowhead body, the loosened position displaced forwardly with respect to the tightened position; and at least one arrow barb attached to the arrowhead body to pivot about a pivot axis perpendicular to the arrow axis to swing between a retracted rearward position extending rearwardly from the pivot axis along the arrow axis, through an extended position extending from the pivot point in a direction perpendicular with respect to the arrow axis, and a retracted forward position extending forwardly from the pivot axis along the arrow axis; wherein the arrow barb includes an eye portion attached to an arm portion, the eye portion having a hole about which the arm portion pivots; and wherein the arm portion extends from the eye portion at an offset from a line of radius of a center of the hole so that the arm portion is removed from interference with a rear edge of the arrow tip when the arm portion is in the retracted forward position and the arrow tip is in the loosened position.