Outsert for arrows

• US 5,611,542 A
• Filed: 08/27/1996
• Issued: 03/18/1997
• Est. Priority Date: 08/27/1996
• Status: Expired due to Fees

• Current Assignee: Thomas A. Saunders
• Original Assignee: Thomas A. Saunders
• Inventors: Saunders, Thomas A.
• Primary Examiner(s): SHAPIRO, PAUL
• Application Number:
  US08/703,443
• Time in Patent Office: 203 Days
• Field of Search: 273/416, 273/419, 273/423
• US Class Current: 473/578
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads

Abstract

An outsert includes an elongated tubular member having forward, central and rearward sections, for connecting an arrow shaft to an attachment for the arrow. The outsert rearward section has a cylindrical rearward bore with a diameter greater than the outer diameter of the arrow shaft for receiving the forward end of the arrow shaft therein. The outsert rearward section also includes a tapered bore extending forwardly from the rearward bore, the tapered bore having a decreasing diameter such that the forward end of the arrow shaft contacts the tapered bore between the forward and rearward ends of the tapered bore. The outer surface of the rearward section of the outsert is tapered and receives a ferrule for crimping the rearward section of the outward into contact with the arrow shaft to assure coaxial alignment of the outsert with the arrow shaft.

Claims

1. An outsert for an arrow shaft, comprising:

an elongated tubular member having a forward section, central section and rearward section;

means on said forward and central sections for connecting the outsert to an arrow attachment;

said rearward section having a cylindrical rearward bore therein extending forwardly from a rearward end of the outsert and having a longitudinal axis coaxial with a longitudinal axis of the outsert;

said rearward section including a tapered bore extending forwardly from a forward end of the rearward bore and having a longitudinal axis coaxial with the outsert longitudinal axis, said tapered bore having a first diameter at a forward end which is less than a second diameter rearwardly of the forward end; and

said rearward section having a tapered outer surface decreasing in diameter from a forward end at the juncture of the rearward and central sections to the rearward end of the outsert.

2. The outsert of claim 1, further comprising a ring-shaped ferrule having an inner surface with at least a portion thereof having a diameter greater than the outer diameter of the rearward end of the outsert rearward section, but less than the outer diameter of the forward end of the outsert rearward section, wherein said ferrule will crimp a rearward portion of the outsert rearward end when moved forwardly onto the outsert.

3. The outsert of claim 2, wherein said ferrule inner surface includes a generally cylindrical portion extending forwardly from a rearward end of the ferrule.

4. The outsert of claim 3, wherein the ferrule inner surface includes a tapered portion increasing in diameter from a forward end of the ferrule cylindrical inner surface to a forward end of the ferrule.

5. The outsert of claim 4, wherein the tapered bore includes a continuously decreasing diameter, forming a smoothly tapered surface.

6. The outsert of claim 5, wherein the forward bore is cylindrical and has a diameter greater than that of the threaded bore.

7. The outsert of claim 6, wherein the central section has a concave annular outer surface.

8. The outsert of claim 1, wherein the tapered bore includes a continuously decreasing diameter, forming a smoothly tapered surface.

9. The outsert of claim 1, wherein the tapered bore includes a plurality of cylindrical steps with a first forward most step having a lesser diameter than a rearwardly adjacent cylindrical step.

10. The outsert of claim 1, wherein said means for connecting the outsert to an attachment includes a forward bore in the forward section extending rearwardly from the outsert forward end, and a threaded bore extending between the forward bore and the tapered bore.

11. The outsert of claim 1, further comprising a ring-shaped inner ferrule having an outer surface with a rearward portion thereof having a diameter greater than the inner diameter of the rearward end of the outsert rearward section, with a forward portion of the outer surface having a diameter less than the inner diameter of the outsert rearward section rearward end and located in the crimped portion with an inner ferrule inner surface having an interference fit with the arrow shaft.

12. In combination:

an arrow shaft having a generally cylindrical outer surface, forward and rearward ends, and a longitudinal axis;

an attachment for the forward end of the shaft;

an outsert for connecting the attachment in coaxial alignment with the longitudinal axis of the shaft, said outsert including;

an elongated tubular member having a forward section, central section and rearward section;

said rearward section having a cylindrical rearward bore therein extending forwardly from a rearward end of the outsert and having a diameter greater than the outer diameter of the shaft forward end;

said rearward section having a tapered bore extending forwardly from a forward end of the rearward bore, said tapered bore decreasing in diameter from a rearward end to a forward end, the diameter of the tapered bore rearward end being greater than the shaft outer diameter, and the tapered bore forward end having a diameter for an interference fit with the shaft forward end at a first annular surface of contact;

said rearward section having a tapered outer surface decreasing in diameter from a forward end to the outsert rearward end; and

said rearward section having a crimped portion with an inner surface having a diameter for an interference fit with the arrow shaft outer surface to form a second annular surface of contact spaced rearwardly of the first annular surface of contact.

13. The combination of claim 12, further comprising a ring-shaped ferrule having an inner surface with at least a portion thereof having a diameter greater than the outer diameter of the rearward end of the outsert rearward section, but less than the outer diameter of the forward end of the outsert rearward section, said ferrule located to form the crimped portion of said rearward section.

14. The combination of claim 13, wherein said ferrule inner surface includes a generally cylindrical portion extending forwardly from a rearward end of the ferrule.

15. The combination of claim 14, wherein the ferrule inner surface includes a tapered portion increasing in diameter from a forward end of the ferrule cylindrical inner surface to a forward end of the ferrule.

16. The combination of claim 15, wherein the tapered bore includes a continuously decreasing diameter, forming a smoothly tapered surface.

17. The combination of claim 16, wherein the central section has a concave annular outer surface.

18. The outsert of claim 15, wherein the tapered bore includes a plurality of cylindrical steps with a first forward most step having a lesser diameter than a rearwardly adjacent cylindrical step.

19. The combination of claim 12, wherein the tapered bore includes a continuously decreasing diameter, forming a smoothly tapered surface.

20. The outsert of claim 12, wherein the tapered bore includes a plurality of cylindrical steps with a first forward most step having a lesser diameter than a rearwardly adjacent cylindrical step.

21. A method of attaching an outsert to an arrow shaft forward end, comprising the steps of:

providing an elongated tubular outsert having forward and rearward ends, a cylindrical rearward bore extending forwardly from the rearward end, and a tapered bore extending forwardly from a forward end of the rearward bore;

applying adhesive to an outer surface of the shaft forward end;

inserting the forward end of the shaft into the outsert rearward bore until the shaft forward end contacts the tapered bore uniformly and continually around the circumference thereof; and

crimping a rearward end of the outsert into uniform and continuous contact around the circumference of the arrow.

22. The method of claim 21, wherein said crimping step includes:

sliding a ferrule forwardly along said shaft and over the outer surface of the rearward end of any outsert rearward section, the ferrule having an inner surface with at least a portion having a diameter greater than the outer diameter of the outsert rearward end but less than the diameter of a forward end of a rearward section of the outsert.

23. The method of claim 21, wherein said crimping step includes:

connecting a ring portion of a tool to the shaft, rearwardly of the outsert, the ring portion having an inner surface with a diameter greater than the outer diameter of a rearward end of a rearward section of the outsert but less than the diameter of a forward end of the outsert rearward section;

sliding the tool forwardly until a portion of the outsert rearward section is crimped into uniform circumferential contact with the arrow shaft, by the ring portion;

sliding the tool rearwardly from the outsert; and

removing the tool from the shaft.

24. The method of claim 21, wherein said crimping step includes sliding an inner ferrule forwardly along said shaft and between a rearward section of the outsert and the shaft, the ferrule having an outer surface with a diameter at a forward end less than the inner diameter of the rearward bore, and a diameter rearwardly of the forward end greater than the diameter of the rearward bore.