Arrowhead and method of attaching same to an arrow shaft

• US 6,739,992 B2
• Filed: 05/15/2003
• Issued: 05/25/2004
• Est. Priority Date: 05/17/2002
• Status: Expired due to Fees

• Current Assignee: GEBR Kummerle GmbH
• Original Assignee: GEBR Kummerle GmbH
• Inventors: Kümmerle, Berthold
• Primary Examiner(s): Ricci, John A.
• Application Number:
  US10/438,667
• Publication Number:
  US 20030216198A1
• Time in Patent Office: 376 Days
• Field of Search: 473/578, 473/582, 473/586
• US Class Current: 473/582
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

An arrowhead for attachment onto a cylindrical wooden arrow body of an arrow has an impact tip and a body-receiving area having following one another in a flight direction: a centering section, internal thread, and sheathing section.

Claims

1. An arrowhead for attachment to the cylindrical wooden shaft of an arrow, comprising an impact tip;

and a sleeve-shaped receiving area for the shaft, wherein the receiving area (4) has following one another in a flight direction;

a centering section, an internal thread (6), and a sheathing section.

2. The arrowhead according to claim 1, wherein the internal thread is a self-cutting thread.

3. The arrowhead according to claim 1, wherein the internal thread is a wedge-edge thread.

4. The arrowhead according to claim 3, wherein flanks (10) of the wedge-edge thread are slanted in a direction opposite to the impact tip with formation of ring-shaped impact surfaces (11).

5. The arrowhead according to claim 1, wherein the centering section is conically tapered in a direction of the impact tip.

6. The arrowhead according to claim 5, wherein the centering section is divided into at least two areas, whereby a conical tapering of the areas increases in the direction of the impact tip.

7. The arrowhead according to claim 5, wherein a contact surface is provided at a base of the receiving area of the centering section.

8. The arrowhead according to claim 1, wherein a blind hole, whose depth is selected so as to tare a weight of the arrowhead, is provided at a base of the receiving area.

9. The arrowhead according to claim 1, wherein the sheathing section has a length at least equal to a length of the internal thread.

10. The arrowhead according to claim 1, wherein the sheathing section has an insertion chamfer for the shaft.

11. The arrowhead according to claim 1, wherein the outside of the sheathing section has a rounded shoulder that is tapered in a direction opposite from the impact tip.

12. The arrowhead according to claim 1, wherein a diameter of the arrowhead (1) is larger than a diameter of the shaft (2).

13. A method of attaching an arrowhead having an impact tip, and a sleeve-shaped receiving area having following one another in a flight direction:

a centering section, internal thread, and sheathing section, onto the cylindrical wooden shaft of an arrow, comprising the step of screwing the shaft into the internal thread of the receiving area of the arrowhead (1), whereby thread furrows are formed on the shaft, causing an end of the shaft to be compressed in the centering section of the receiving section (4), creating a press fit.