Arrow point alignment system

• US 8,460,134 B2
• Filed: 10/07/2011
• Issued: 06/11/2013
• Est. Priority Date: 12/19/2006
• Status: Active Grant

• Current Assignee: Easton Technical Products
• Original Assignee: Easton Technical Products
• Inventors: Palomaki, Teddy D., Giles, Kenny R., Hinschberger, Ross M., Mizek, Robert S.
• Primary Examiner(s): RICCI, JOHN A
• Application Number:
  US13/269,277
• Publication Number:
  US 20120028741A1
• Time in Patent Office: 613 Days
• Field of Search: 473/578, 473/582, 473/583
• US Class Current: 473/582
• CPC Class Codes: F42B 6/08 Arrow heads; Harpoon heads
• CPC Class Codes: Y10T 29/49895 Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]

Abstract

An arrow apparatus includes a hollow arrow shaft, an arrow point alignment structure, an arrow point, and a central connection member. The hollow arrow shaft has an outer surface, an interior, and a leading end surface. The arrow point alignment structure includes a tapered portion and is positioned on the outer surface of the arrow shaft at a location proximal of the leading end surface of the arrow shaft. The arrow point is in contact with the tapered portion of the arrow point alignment structure. The central connection member extends into the interior and in contact with the leading end surface.

Claims

1. An arrow apparatus, comprising:

a hollow arrow shaft having an outer surface, an interior, and a leading end surface;

an arrow point alignment structure positioned on the outer surface of the arrow shaft at a location proximal of the leading end surface of the arrow shaft, the arrow point alignment structure comprising a tapered portion;

an arrow point in contact with the tapered portion of the arrow point alignment structure;

a central connection member extending into the interior of the arrow shaft.

2. The arrow apparatus of claim 1, wherein the entire arrow point alignment structure is spaced proximal of the leading end surface of the arrow shaft.

3. The arrow apparatus of claim 1, wherein the central connection member is permanently connected to the arrow point.

4. The arrow apparatus of claim 3, wherein the central connection member includes a shank portion and an abutment shoulder, the shank portion including a plurality of threads, the abutment shoulder arranged to contact the leading end surface of the arrow shaft.

5. The arrow apparatus of claim 4, further comprising an insert disposed within the interior of the arrow shaft at a location proximal of the leading end surface, the insert being configured to releasable connect to the central connection member.

6. The arrow apparatus of claim 5, wherein the insert includes a proximal end and as distal end, the distal end being spaced proximal of the leading end surface of the arrow shaft, and the proximal end of the insert being spaced proximally of a proximal end of the arrow point alignment structure.

7. The arrow apparatus of claim 5, wherein a proximal end of the insert is spaced proximally of a proximal end of the arrow point alignment structure a distance at least as great as a diameter of the arrow shaft.

8. The arrow apparatus of claim 1, wherein the arrow point alignment structure is movable relative to the outer surface of the arrow shaft.

9. The arrow apparatus of claim 1, wherein the arrow point alignment structure is connected to the arrow point with a snap-fit connection.

10. The arrow apparatus of claim 1, wherein the arrow point is a broadhead and comprises a collar, the collar being configured to receive and contact at least a tapered portion of the arrow point alignment structure.

11. The arrow apparatus of claim 10, wherein the collar defines a tapered surface arranged to contact the tapered portion of the arrow point alignment structure.

12. The arrow apparatus of claim 1, wherein the arrow point alignment structure contacts the outer surface of the arrow shaft.

13. The arrow apparatus of claim 11, wherein the tapered surface of the collar has a taper angle that is the same as a taper angle of the tapered portion of the arrow point alignment structure.

14. An arrow point assembly for attachment to an arrow shaft, the arrow point assembly comprising:

a leading end;

a trailing end;

a central connection portion having a threaded shaft and an abutment shoulder, the threaded shaft being insertable into an arrow shaft, and the abutment shoulder being arranged to contact a leading end surface of the arrow shaft;

a tapered aperture defined within the arrow point assembly proximate the trailing end, the tapered aperture defining a tapered surface;

wherein the tapered surface of the tapered aperture is configured to contact a corresponding tapered surface of an arrow point alignment structure that is in contact with an outer surface of the arrow shaft.

15. The arrow point assembly of claim 14, wherein the arrow point alignment structure is connected to the arrow point assembly.

16. The arrow point assembly of claim 14, wherein the arrow point assembly comprises a broadhead and comprises a tapered collar that defines the tapered aperture.

17. The arrow point assembly of claim 14, wherein the abutment shoulder and tapered surface are axially spaced apart.

18. A method of assembling an arrow apparatus, comprising:

providing a hollow arrow shaft, an arrow point, and an arrow point alignment structure, the arrow shaft having an interior, an outer surface, and a leading end surface, the arrow point having axially spaced apart first and second contact points, the second contact point having a tapered portion, the arrow point alignment structure having a tapered portion;

positioning the arrow point alignment structure spaced proximally of the leading end surface of the arrow shaft in contact with the outer surface of the arrow shaft;

positioning the arrow point in contact with the leading end surface of the arrow shaft at the first contact point and in contact with the tapered portion of the arrow point alignment structure at the tapered portion of the second contact point to axially align the arrow point alignment structure with the arrow shaft.

19. The method of claim 18, wherein the arrow point includes a tapered aperture defining a tapered surface within the arrow point, and positioning the arrow point in contact with the tapered portion of the arrow point alignment structure includes contacting the tapered portion of the arrow point alignment structure with the tapered surface.

20. The method of claim 18, further comprising:

providing an arrow shaft insert and a central connection member, the central connection member being connected to the arrow point and having an abutment shoulder that defines the first contact point;

disposing the insert within the interior of the arrow shaft spaced proximally of the leading end surface of the arrow shaft;

inserting the central connection member into the interior of the arrow shaft and releasably connecting the central connection member with the insert.

21. The method of claim 20, further comprising permanently affixing the central connection member to the arrow point.

22. The method of claim 18, further comprising affixing the arrow point alignment structure to the arrow point.

23. A broadhead arrow point assembly, comprising:

a broadhead arrow point having a threaded shank and a collar, the collar defining a collar aperture, and the threaded shank being insertable into an arrow shaft to which the broadhead arrow point assembly is mounted;

an arrow point alignment structure having a tapered portion, the tapered portion being in contact with the collar aperture, the arrow point alignment structure being configured to align axially the broadhead arrow point with an arrow shaft to which the broadhead arrow point is mounted.

24. The broadhead arrow point assembly of claim 23, wherein the collar aperture includes a tapered surface that contacts the tapered portion of the arrow point alignment structure.

25. The broadhead arrow point assembly of claim 23, wherein when the broadhead arrow point is mounted to an arrow shaft, the arrow point alignment structure contacts an outer surface of the arrow shaft.

26. The broadhead arrow point assembly of claim 23, wherein the broadhead arrow point includes a distal end portion and a proximal end portion, the threaded shank extending proximally from the distal end portion and the collar being positioned at the distal end portion at a location axially spaced apart from the threaded shank.

27. The broadhead arrow point assembly of claim 23, wherein the arrow point alignment structure comprises a molded thermoplastic elastomer material.

28. A method of assembling an arrow apparatus, comprising:

providing an arrow shaft, an arrow point, and an arrow point alignment structure, the arrow shaft having an outer surface, the arrow point having a first tapered portion, the arrow point alignment structure having a second tapered portion;

positioning the arrow point alignment structure on the outer surface of the arrow shaft;

inserting the arrow shaft through a portion of the arrow point to contact the first and second tapered portions;

threadably connecting the arrow point to the arrow shaft;

wherein as the arrow point is threadably connected to the arrow shaft, the arrow point alignment structure is urged proximally overcoming friction between the arrow point alignment structure and the outer surface of the arrow shaft until the arrow point attains an operation position relative to the arrow shaft.

29. The method of claim 28, wherein the arrow point alignment structure comprises a thermoplastic elastomer.

30. The method of claim 28, wherein when the arrow point is threadably removed from the arrow shaft, the arrow point alignment structure maintains an axial position along the arrow shaft.

31. The method of claim 28, wherein the arrow point includes a threaded shank and the arrow shaft includes an insert having a threaded bore, wherein threadably connecting the arrow point to the arrow shaft includes theadably engaging the threaded shank with the threaded bore.

32. An arrow apparatus, comprising:

a hollow arrow shaft having an outer surface, an interior, and a leading end;

an arrow point alignment structure positioned on the outer surface of the arrow shaft at a location spaced proximal of the leading end surface of the arrow shaft, the arrow point alignment structure comprising a tapered portion;

a broadhead arrow point having a plurality of blades and being supported at the leading end of the arrow shaft and at the tapered portion of the arrow point alignment structure, the plurality of blades extending proximal of the leading end of the arrow shaft.

33. The arrow apparatus of claim 32, wherein the arrow point alignment structure includes a shoulder member positioned at a proximal end thereof, the shoulder member defining a stop surface against which a proximal surface of the broadhead arrow contacts.

34. The arrow apparatus of claim 33, wherein the proximal surface of the broadhead arrow contacts the shoulder member to move the arrow point alignment structure axially when mounting the broadhead arrow point to the arrow shaft.

35. The arrow apparatus of claim 32, wherein the arrow point alignment structure comprises thermoplastic elastomer material.

36. The arrow apparatus of claim 32, wherein the broadhead arrow point is a void of ferrule structures.

37. The arrow apparatus of claim 32, further comprising an insert including a threaded bore and positioned within the interior of the arrow shaft, and the broadhead arrow point includes a threaded shank positioned distal of a proximal end of the broadhead arrow point that threadably engages the threaded bore of the insert.

38. The arrow apparatus of claim 32, wherein the tapered portion of the arrow point alignment structure includes a continuous, smooth surface.

39. The arrow apparatus of claim 32, wherein the arrow point alignment structure includes an arrow bore sized to receive the arrow shaft and provide an interference fit with the outer surface of the arrow shaft.

40. The arrow apparatus of claim 39, wherein the arrow bore is adjustable in diameter to fit arrow shafts of different outer diameter.

41. The arrow apparatus of claim 32, wherein the broadhead arrow point includes a threaded shank extending in a proximal direction, wherein the threaded shank includes a slot formed in a proximal end thereof sized to receive a screwdriver head.

42. A method of assembling an arrow apparatus, comprising:

providing a hollow arrow shaft, an arrow point, an arrow point alignment structure, an arrow shaft insert and a central connection member, the arrow shaft having an interior, an outer surface, and a leading end surface, the arrow point having axially spaced apart first and second contact points, the arrow point alignment structure having a tapered portion, the central connection member being connected to the arrow point and having an abutment shoulder that defines the first contact point;

positioning the arrow point alignment structure spaced proximally of the leading end surface of the arrow shaft in contact with the outer surface of the arrow shaft;

positioning the arrow point in contact with the leading end surface of the arrow shaft at the first contact point and in contact with the tapered portion of the arrow point alignment structure at the second contact point to axially align the arrow point alignment structure with the arrow shaft;

disposing the insert within the interior of the arrow shaft spaced proximally of the leading end surface of the arrow shaft;

inserting the central connection member into the interior of the arrow shaft and releasably connecting the central connection member with the insert.

43. A broadhead arrow point assembly, comprising:

a broadhead arrow point having a threaded shank and a collar, the collar defining a collar aperture;

an arrow point alignment structure having a tapered portion, the tapered portion being in contact with the collar aperture, the arrow point alignment structure being configured to align axially the broadhead arrow point with an arrow shaft to which the broadhead arrow point is mounted;

wherein the broadhead arrow point includes a distal end portion and a proximal end portion, the threaded shank extending proximally from the distal end portion and the collar being positioned at the distal end portion at a location axially spaced apart from the threaded shank.

44. An arrow apparatus, comprising:

a hollow arrow shaft having an outer surface, an interior, and a leading end;

an arrow point alignment structure positioned on the outer surface of the arrow shaft at a location spaced proximal of the leading end surface of the arrow shaft, the arrow point alignment structure comprising a tapered portion;

a broadhead arrow point supported at the leading end of the arrow shaft and at the tapered portion of the arrow point alignment structure;

wherein the arrow point alignment structure includes a shoulder member positioned at a proximal end thereof, the shoulder member defining a stop surface against which a proximal surface of the broadhead arrow contacts.

45. The arrow apparatus of claim 44, wherein the proximal surface of the broadhead arrow contacts the shoulder member to move the arrow point alignment structure axially when mounting the broadhead arrow point to the arrow shaft.

46. An arrow apparatus, comprising:

a hollow arrow shaft having an outer surface, an interior, and a leading end;

an arrow point alignment structure positioned on the outer surface of the arrow shaft at a location spaced proximal of the leading end surface of the arrow shaft, the arrow point alignment structure comprising a tapered portion;

a broadhead arrow point supported at the leading end of the arrow shaft and at the tapered portion of the arrow point alignment structure;

wherein the broadhead arrow point is a void of ferrule structures.

47. An arrow apparatus, comprising:

a hollow arrow shaft having an outer surface, an interior, and a leading end;

an arrow point alignment structure positioned on the outer surface of the arrow shaft at a location spaced proximal of the leading end surface of the arrow shaft, the arrow point alignment structure comprising a tapered portion;

a broadhead arrow point supported at the leading end of the arrow shaft and at the tapered portion of the arrow point alignment structure;

an insert including a threaded bore and positioned within the interior of the arrow shaft, and the broadhead arrow point includes a threaded shank positioned distal of a proximal end of the broadhead arrow point that threadably engages the threaded bore of the insert.

48. An arrow apparatus, comprising:

a hollow arrow shaft having an outer surface, an interior, and a leading end;

an arrow point alignment structure positioned on the outer surface of the arrow shaft at a location spaced proximal of the leading end surface of the arrow shaft, the arrow point alignment structure comprising a tapered portion;

a broadhead arrow point supported at the leading end of the arrow shaft and at the tapered portion of the arrow point alignment structure;

wherein the arrow point alignment structure includes an arrow bore sized to receive the arrow shaft and provide an interference fit with the outer surface of the arrow shaft, and the arrow bore is adjustable in diameter to fit arrow shafts of different outer diameter.

49. An arrow apparatus, comprising:

a hollow arrow shaft having an outer surface, an interior, and a leading end;

an arrow point alignment structure positioned on the outer surface of the arrow shaft at a location spaced proximal of the leading end surface of the arrow shaft, the arrow point alignment structure comprising a tapered portion;

a broadhead arrow point supported at the leading end of the arrow shaft and at the tapered portion of the arrow point alignment structure;

wherein the broadhead arrow point includes a threaded shank extending in a proximal direction, wherein the threaded shank includes a slot formed in a proximal end thereof sized to receive a screwdriver head.