ADAPTORS FOR MOUNTING ARROWHEADS TO ARROW SHAFTS

• US 20090075766A1
• Filed: 09/12/2008
• Published: 03/19/2009
• Est. Priority Date: 09/14/2007
• Status: Active Grant

• Current Assignee: Bear Archery Incorporated (Escalade Incorporated)
• Original Assignee: Bear Archery Incorporated (Escalade Incorporated)
• Inventors: Ben, Blosser, Mark, Wenberg, Sean, Gordon
• Granted Patent: US 8,057,330 B2
• Time in Patent Office: Days
• US Class Current: 473/578
• CPC Class Codes: F42B 6/04 Archery arrows F42B6/08, F41B5/06, F42B12/362 take precedence

Abstract

Adaptors for mounting arrowheads to arrow shafts are disclosed. Example embodiments include an outer attachment portion that engages the outer surface of a hollow arrow shaft, and an inner attachment portion that engages the inner surface of the hollow arrow shaft. Other embodiments may include single-piece adaptors configured to receive the end of a hollow arrow shaft, and adaptors with arrowhead receiving portions. Still other embodiments may include an inner attachment portion that is inserted into the hollow of a hollow arrow shaft and an outer attachment portion that surrounds and receives the outer surface of the hollow arrow shaft.

Claims

1. An archery apparatus, comprising:

a single-piece arrowhead adaptor with an inner attachment portion and an outer attachment portion, the single-piece arrowhead adaptor configured to engage a hollow arrow shaft between the inner and outer attachment portions with the inner attachment portion being inserted within the hollow of the arrow shaft.

2. The archery apparatus of claim 1, further comprising an arrowhead attachment portion adapted to attach to an arrowhead.

3. The archery apparatus of claim 1, further comprising an arrow shaft abutment surface adjacent said inner and outer attachment portions and adapted to contact the end face of the hollow arrow shaft, the arrow shaft abutment surface being substantially planar and perpendicular to the arrow shaft axis when the arrowhead adaptor is attached to the arrow shaft.

4. The archery apparatus of claim 1, wherein the inner and outer attachment portions each define a circular cylinder.

5. The archery apparatus of claim 1,

wherein the inner attachment portion defines an outward facing surface sized and contoured for flush engagement with the hollow arrow shaft inner surface;

and

wherein the outer attachment portion defines an inward facing surface sized and contoured for flush engagement with the hollow arrow shaft outer surface.

6. The archery apparatus of claim 5, wherein the outward facing surface and the inward facing surface are parallel.

7. The archery apparatus of claim 5, wherein the outward facing surface is cylindrical and the inward facing surface is cylindrical.

8. The archery apparatus of claim 1,

wherein the inner attachment portion includes an outer surface contour sized to mate with the contour of the hollow arrow shaft inner surface;

and

wherein the outer attachment portion includes an inner surface contour sized to mate with the contour of the hollow arrow shaft outer surface.

9. The archery apparatus of claim 1, further comprising:

an arrowhead attached to the single-piece arrowhead adaptor; and

an arrow shaft with at least one fletching and a nock attached to the single-piece arrowhead adaptor.

10. The archery apparatus of claim 1, wherein the single-piece arrowhead adaptor is configured to frictionally couple with the hollow arrow shaft.

11. An adaptor for attaching an arrowhead to an arrow shaft, comprising:

an arrow shaft adaptor with an arrowhead attachment portion, an inner shaft attachment portion and an outer shaft attachment portion,

the arrowhead attachment portion configured to attach to an arrowhead, and

the inner shaft attachment portion and the outer shaft attachment portion configured to engage therebetween the end of a hollow arrow shaft.

12. The adaptor of claim 11, wherein the inner and outer shaft attachment portions each define a circular cylinder.

13. The adaptor of claim 11, wherein the outer shaft attachment portion includes an inner surface defining a first diameter equal to the outer diameter of the hollow arrow shaft.

14. The adaptor of claim 13, wherein the inner shaft attachment portion includes an outer surface defining a second diameter equal to the inner diameter of the hollow arrow shaft and adapted to be inserted into the hollow arrow shaft.

15. The adaptor of claim 11, wherein the inner shaft attachment portion extends into the shaft a distance that is longer than the distance the outer attachment portion extends along the arrow shaft outer surface.

16. The adaptor of claim 11, wherein the arrow shaft adaptor is a single-piece object of unitary construction.

17. An adaptor for attaching an arrowhead to an arrow shaft, comprising:

a cylindrical arrow shaft adaptor with a front portion and a rear portion;

the front portion adapted for connection to an arrowhead; and

the rear portion adapted for connection to a hollow arrow shaft, the rear portion including an annular ring receptacle with an inward facing surface and an outward facing surface, the annular ring receptacle being adapted to receive in nesting engagement an end of the hollow arrow shaft.

18. The adaptor of claim 17, wherein the inward and outward facing surfaces are adapted to frictionally mate with the hollow arrow shaft end.

19. The adaptor of claim 17, wherein the cylindrical arrow shaft adaptor is a single piece of unitary construction.

20. An arrow for archery, comprising:

a hollow arrow shaft with an outer surface and an inner surface, the inner surface defining a cavity of the hollow arrow shaft;

at least one fletching attached to the hollow arrow shaft;

a nock attached to the hollow arrow shaft and adapted to receive a bowstring;

an arrow shaft adaptor with an inner attachment portion and an outer attachment portion, the inner attachment portion being in flush engagement with the arrow shaft inner surface, and the outer attachment portion being in flush engagement with the arrow shaft outer surface; and

an arrow head engaged with the arrow shaft adaptor.

21. The arrow of claim 20, wherein the arrow shaft adaptor is a single piece of unitary construction.

22. The arrow of claim 21, wherein the inner attachment portion extends into the shaft a distance that is longer than the distance the outer attachment portion extends along the arrow shaft outer surface.