| 摘要 |
An arrow with retractable blades having an arrow shaft with a cylindrical extension extending from a forward end, an arrow tip having a main body with an open rear end, an arrow shaft recess and a cylinder recess sized to receive the cylindrical extension. The main body includes a plurality of longitudinal blade slots with a blade pivotally affixed within each blade slot, with each blade jointly pivotable between a closed position and a deployed position, with a spring within the arrow shaft recess biasing the forward end of said arrow shaft normally rearward. Spaced circumferential ridges on the cylindrical extension engage mating teeth on each blade such that forward motion of the cylindrical extension within the cylinder recess pivots the blades into the deployed position and rearward motion of the cylindrical extension pivots the blades into the closed position, with a threaded cap over the open rear end of the main body maintaining the forward end of the arrow shaft within the arrow shaft recess. |
