ARROWHEAD

• US 3,614,103 A
• Filed: 11/24/1969
• Issued: 10/19/1971
• Est. Priority Date: 11/24/1969
• Status: Expired due to Term

• Current Assignee: Cornelius F. Carroll
• Original Assignee: Cornelius F. Carroll
• Inventors: Carroll, Cornelius F.
• Primary Examiner(s): Pinkham, Richard C.
• Assistant Examiner(s): Shapiro, Paul E.
• Application Number:
  US04/879,401
• Time in Patent Office: 694 Days
• Field of Search: 273/16.5R,16.5B
• US Class Current: 473/584
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

A broadhead for an arrow comprising an elongated conical body member having a forward pointed end and a cylindrical rear extension attached to the base of the conical member and adapted to be entered into a tubular arrow shaft or adapter. There is an axial slot extending forward from the rear end of the cylindrical rear extension, and into the elongated conical body through a portion of its length, into which is fitted a flat cutting blade. The forward end of the blade is spaced rearward from the forward end of the body to provide a relatively long leading spike, the blade having a forward edge abutting the forward end of the body slot, a rear shoulder at the point of juncture between the conical body member and the cylindrical rear extension, abutting the end of the hollow arrow shaft and a rearwardly extending tang entering the hollow arrow shaft. The front end of the blade and the front edge of the slot have a cooperating tang and reentry portion to prevent lateral displacement of the blade. In a second embodiment there is a second slot at right angles to the first slot, and of lesser extent, extending the conical member, the cylindrical rear extension and the first blade. A second blade, similar to the first blade is fitted in the second slot.

Claims

1. An arrow broadhead comprising an elongated body member having a tapered portion converging to a pointed forward end and a cylindrical rear end portion adapted to be entered into the bore of an adapter ferrule or tubular arrow shaft into close fitting relationship, a slot extending transversely through said body and axially forward from its rear end, a flat cutting blade fitted into said slot and extending laterally from opposite sides of said body member, said blade having a forward end surface abutting the surface defining the forward end of said slot, a rear end surface perpendicular to the axis of said body adapted to abut the end of the ferrule or tubular arrow shaft, and a central narrow tang portion extending axially rearward from said rear end surface, said tang portion being substantially equal in width to the diameter of said cylindrical rear end portion of said body member and extending axially therein.

2. A broadhead as set forth in claim 1 in which one of said abutting surfaces is provided with a projection and the other with an accommodating reentry thereby to preclude lateral movement of the forward end of said blade.

3. A broadhead as set forth in claim 1 in which the forward end of said body slot and blade are spaced rearward sufficiently from the forward end of said body member to provide a relatively long leading spike.

4. A broadhead as set forth in claim 1 in which said body comprises a relatively short cylindrical rear end portion of reduced diameter terminating in a shoulder at its forward end and a relatively long portion tapered to a forward point, and in which the length of said body slot and that of said blade between its said forward and rear end surfaces are such that said shoulder and said rear end surface of said blade substantially coincide.

5. A broadhead as set forth in claim 1 in which said flat cutting blade has the form of a truncated isosceles triangle with the sides thereof converging forward and forming cutting edges, with the base thereof perpendicular to the axis of said body, with a narrow tang portion extending axially from its base and having its apex truncated on a plane parallel to its base to form a forward surface substantially equal in width to the surface defining the forward end of said slot which it abuts.

6. A broadhead as set forth in claim 1 which further includes an adapter ferrule having a bore extending inward from one thereof receiving said cylindrical rear end portion of said body member in close-fit relationship with said rear end surface of said cutting blade abutting said one end of said ferrule and said ferrule having an opposite end portion formed for interfitting engagement with an arrow shaft.

7. An arrow broadhead as set forth in claim 6 in which said bore in said ferrule and said cylindrical rear end portion of said body are screw threaded and in screw-threaded engagement.

8. An arrow broadhead comprising an elongated body member having a tapered portion converging to a forward pointed end and a cylindrical rear end portion adapted to be entered into the bore of an adapter ferrule or tubular arrow shaft in close-fitting relationship, a first slot extending transversely through said body and axially forward from its rear end a substantial portion of the length thereof, a second shorter slot extending transversely through said body perpendicular to said first slot and extending axially forward from the rear end thereof to a forward end spaced rearward from the forward end of said first slot, a first flat cutting blade fitted into said first slot, a second shorter flat cutting blade fitted intO said second perpendicular slot, each of said blades having a forward end surface abutting the surface defining the forward end of its respective slot and each of said blades having a rear end surface perpendicular to the body axis which surfaces are axially coincidental and adapted to abut the end of a ferrule or tubular arrow shaft into which the rear end of said body is inserted, each of said blades further including a narrow tang portion extending axially rearward from the rear end surface thereof which tang portions are substantially equal in width to the diameter of said cylindrical rear end portion of said body member and extend axially therein, and said first blade having an axial slot extending forward sufficiently from the rear end thereof to receive said second shorter blade.

9. A broadhead as set forth in claim 8 in which said axial slot in said first blade is slightly shorter than required to receive said second shorter blade and in which a short slot in the forward end of said second shorter blade receives a short portion of said first blade thereby to provide interlocking portions which preclude relative lateral displacement of the blades.

10. An arrow broadhead comprising an elongated body member having a tapered portion converging to a forward pointed end and a cylindrical rear end portion, a first slot extending transversely through said body and axially forward from its rear end a substantial portion of its length, a second shorter slot extending transversely through said body perpendicular to said first slot and coextending axially with said cylindrical rear end portion, a first flat cutting blade fitted into said first slot, a second flat cutting blade fitted into said perpendicular slot, said cutting blades both having portions thereof extending laterally from said body member, each of said blades having a forward end surface abutting the surface defining the forward end of its respective slot and each of said blades having a rear end surface perpendicular to the body axis, each of said blades further including a narrow tang portion extending axially rearward from said rear end surface thereof which tang portions are substantially equal to the diameter of said cylindrical rear end body portion and extend axially therein, a ferrule having a bore at one end thereof receiving said cylindrical end portion of said body in close fit relationship with said rear end surface of said first cutting blade abutting said one end thereof, an axial slot in said tang portion of said first blade receiving the fore end portion of said second blade, an axially extending slot in the walls of said one end of said ferrule receiving said laterally extending portions of said second blade, and said ferrule having an opposite end portion adapted to interfitting engagement with an arrow shaft.