NOCK ADAPTER FOR BOWFISHING ARROW

• US 20110218062A1
• Filed: 03/03/2011
• Published: 09/08/2011
• Est. Priority Date: 03/05/2010
• Status: Active Grant

• Current Assignee: Ams LLC (Global Payments Incorporated)
• Original Assignee: Ams LLC (Global Payments Incorporated)
• Inventors: Braun, Jeffrey, Braun, Cindy R.
• Granted Patent: US 8,267,815 B2
• Time in Patent Office: Days
• US Class Current: 473/578
• CPC Class Codes: A63B 65/02 Spears or the like ; Javelins
• CPC Class Codes: F42B 6/04 Archery arrows F42B6/08, F41B5/06, F42B12/362 take precedence
• CPC Class Codes: F42B 6/06 Tail ends, e.g. nocks, fletching

Abstract

A nock adapter for a solid shaft bowfishing arrow fits on a standard conical taper of a solid shaft arrow and provides an extended cylindrical joint releasably engaging a cylindrical boss of a nock for field replacement of the nock while resisting lateral disengaging impacts.

Claims

1. An arrow assembly comprising:

a solid arrow shaft extending along an axis and having a conically tapered rear end;

an adapter having a forwardly open conical bore receiving the rear end of the arrow shaft to align an axis of the adapter with the arrow axis by interfitting of the conical bore and tapered rear end and having a rearwardly opening bore with substantially parallel walls; and

a nock having a bifurcated rearward portion providing opposed fingers for fitting a bowstring therebetween and having a forwardly extending boss adapted to press fit within the rearwardly opening bore of the adapter to align the nock with the arrow axis.

2. The arrow assembly of claim 1 wherein the rearwardly extending bore of the adapter is substantially cylindrical.

3. The arrow assembly of claim 2 wherein the rearwardly extending bore of the adapter has an axial length no less than one and one half times its inner diameter.

4. The arrow assembly of claim 1 wherein the conically tapered rear end of the arrow is conical.

5. The arrow assembly of claim 1 wherein the conically tapered rear end of the arrow is frusto-conical.

6. The arrow assembly of claim 1 wherein the forwardly open conical bore of the adapter includes a counterbore at its apex providing a glue relief volume.

7. The arrow assembly of claim 1 wherein the adapter is selected from the group consisting of nylon and aluminum.

8. The arrow assembly of claim 1 wherein the forward extending boss of the nock is substantially cylindrical.

9. The arrow assembly of claim 8 wherein the forward extending boss of the nock provides a set of diametrically protruding ridges extending along an axis of the boss.

10. The arrow assembly of claim 1 wherein the adapter has a cylindrical outer periphery substantially equal to a diameter of a cylindrical outer periphery of the solid arrow shaft.

11. The arrow assembly of claim 1 wherein the nock is a thermoplastic material different from the adapter.

12. The arrow assembly of claim 1 wherein the nock provides a maximum diametrical extent less than a diameter of a cylindrical outer periphery of the adapter.

13. The arrow assembly of claim 1 wherein further including an adhesive providing a joint between the adapter and the arrow shaft.

14. A nock adapter providing a substantially cylindrical body having a diameter between ¼

and ⅜

inches and an axial length between 1 and 2.5 inches, the body providing an axially centered forwardly open conical bore adapted to receive a correspondingly tapered rear end of an arrow shaft to align an axis of the adapter with an arrow axis by interfitting of the conical bore and tapered rear end and having a rearwardly opening bore with substantially parallel walls having an inner diameter of substantially ¼

inch for receipt of a corresponding boss of a nock.