초록 ▼

A broadhead arrowhead of the type having replaceable blades is formed with a central body which has slots which receive the replaceable blades and plural sets of holes formed radially therethrough to give the arrowhead significantly reduced weight compared to arrowheads of similar size, while retain

A broadhead arrowhead of the type having replaceable blades is formed with a central body which has slots which receive the replaceable blades and plural sets of holes formed radially therethrough to give the arrowhead significantly reduced weight compared to arrowheads of similar size, while retaining high strength and rigidity. Each set of holes is formed as a line of holes extending lengthwise along the central body, with the size of the holes from the back to the front of the body preferably decreasing in size to match the taper of the cross-sectional diameter of the central body. Where three blades are provided, six sets of holes may be formed in the central body by drilling through the central body, with the slots for admitting the blades extending through three of the sets of holes. In addition to reducing weight, the holes also provide a wind foil which is effective to reduce the noise of the arrow in flight and to improve its stability.

대표청구항 ▼

A lightweight broadhead arrowhead comprising: a central body of substantially circular periphery having a front and a back, a plurality of slots formed in the periphery of the central body extending from the front to the back axially, and a plurality of sets of holes formed in the central body exten

A lightweight broadhead arrowhead comprising: a central body of substantially circular periphery having a front and a back, a plurality of slots formed in the periphery of the central body extending from the front to the back axially, and a plurality of sets of holes formed in the central body extending radially through the body, each set of holes comprising a plurality of holes extending in a line axially along the length of the central body, each line of holes in a set spaced from the line of holes in an adjacent set by solid segments of the central body, each hole in each set in the central body separated by solid metal of the body from the holes at the next higher or lower elevation to provide a solid metal wall through the cross-section of the central body between each of the holes at adjacent elevational levels; a plurality of blades mounted in the slots in the central body; a penetrating tip attached to the front end of the central body; and means on the back of the central body for attaching the body to an arrow shaft.