Crossbow bolt cap and fletching nock device and method

• US 5,987,724 A
• Filed: 03/07/1997
• Issued: 11/23/1999
• Est. Priority Date: 03/07/1997
• Status: Expired due to Term

• Current Assignee: Hunters Manufacturing Co Incorporated (Hunter's Manufacturing Company Incorporated)
• Original Assignee: John Kleman
• Inventors: Kleman, John
• Primary Examiner(s): Bryant, David P.
• Application Number:
  US08/813,895
• Time in Patent Office: 991 Days
• Field of Search: 29/2.1, 29/401.1, 269/38, 473/578
• US Class Current: 29/401.1
• CPC Class Codes: F41B 5/1446 Arrow fletching jigs
• CPC Class Codes: Y10T 29/49716 Converting

Abstract

A device and method for adapting an arrow bolt fletching tool for use in fletching crossbow arrow bolts. The invention is designed to facilitate fletching crossbow arrow bolts, which are shot without nocks, utilizing a commercially available fletching tool which is designed and produced for use in fletching arrows having nocks which remain with the arrow and are shot with it. The invention provides for an end cap, containing a specially shaped indentation, to be placed in the end of the crossbow arrow bolt. A special fletching nock, with an end configured to fit within the indentation of the end cap, is inserted within the end cap for purposes of fletching the arrow only and is then removed. The fletching nock has a forked, or u-shaped, end, which engages the fletching tool in the same manner as a standard arrow nock.

Claims

1. A method of adapting an arrow bolt fletching tool having a rotating arrow bolt indexer for use in fletching a hollow cylindrical crossbow arrow bolt having an interior diameter and exterior diameter, said method including the steps of:

A. providing a bolt cap member comprising;

a bolt end having an exterior diameter sufficient to permit insertion of said bolt end into said arrow bolt in a male-female relationship; and

a fletching nock end having a diameter equal to the exterior diameter of said arrow bolt, said fletching nock end having a planar surface perpendicular to the longitudinal axis of said arrow bolt, and a polygonal aperture defined in said planar face and centrally aligned with the longitudinal axis of the arrow bolt;

B. providing a fletching nock member having a bolt cap end with a polygonal, male member defined thereupon, said male member being configured to be removeably insertable into said polygonal aperture;

said fletching nock member further including a fletching tool end having a diameter at least as great as the exterior diameter of the arrow bolt and further including a pair of members extending parallel to the longitudinal axis of the arrow bolt so as to define a slot;

C. inserting the male member of the fetching nock member into the polygonal aperture of the bolt cap;

D. engaging the rotating bolt indexer of the fletching tool with the slot defined by the pair of members of the fletching nock member; and

E. removing the fletching nock member from the bolt cap member upon completion of fletching.

2. A method, as in claim 1, wherein the step of inserting the male member of the fletching nock member into the polygonal aperture is implemented before the step of engaging the rotating bolt indexer with the slot.

3. A method, as in claim 1, wherein the step of inserting the male member of the fletching nock member into the polygonal aperture is implemented after the step of engaging the rotating bolt indexer with the slot.

4. The method of adapting an arrow bolt fletching tool having a rotating arrow bolt indexer for use in fletching a hollow cylindrical crossbow arrow bolt having an exterior diameter and interior diameter of claim 1, wherein, said method includes the additional step of removing the cylindrical bolt cap member having a planar surface defining a polygonal aperture, after fletching, and replacing said cylindrical bolt cap member with a cylindrical bolt cap member, having an unbroken planar surface.

5. The method of adapting an arrow bolt fletching tool having a rotating bolt indexer for use in fletching a hollow cylindrical crossbow arrow bolt having an interior diameter and exterior diameter, of claim 4, wherein the engagement of the fletching nock member with the rotating arrow bolt indexer is made permanent by adhesive means.

7. The method of adapting an arrow bolt fletching tool having a rotating bolt indexer for use in fletching a hollow cylindrical crossbow arrow bolt having an interior diameter and exterior diameter, of claim 5, wherein a portion of the fletching tool end of the fletching nock member has an exterior diameter corresponding with a interior dimension of a concave nock receptacle portion of the rotating arrow bolt indexer so that said fletching nock member corresponds with said rotating arrow bolt indexer in a male-female relationship.

8. The method of adapting an arrow bolt fletching tool having a rotating bolt indexer for use in fletching a hollow cylindrical crossbow arrow bolt having an interior diameter and exterior diameter, of claim 5, wherein said method further includes the additional step of affixing the cylindrical bolt cap member within the cylindrical crossbow arrow bolt, by adhesive means.

6. A method of adapting an arrow bolt fletching tool having a rotating arrow bolt indexer for use in fletching a hollow cylindrical crossbow arrow bolt having an interior diameter and exterior diameter, said method including the steps of:

inserting a cylindrical bolt cap member into the cylindrical crossbow arrow bolt, said bolt cap member comprising;

a bolt end having an exterior diameter sufficient to permit insertion of said bolt end of said member within said arrow bolt in a male-female relationship and a fletching nock end having a diameter equal to the exterior diameter of said arrow bolt;

said fletching nock end having a planar surface perpendicular to the longitudinal axis of said arrow bolt;

said planar surface further defining a polygonal aperture centrally aligned with the longitudinal axis of said arrow bolt;

engaging the rotating the bolt indexer of the fletching tool utilizing a fletching nock member having a bolt cap end comprising a polygonal male member correspondingly configured to be removeably insertable within said polygonal aperture defined by the planar surface of the bolt cap and having a fletching tool end of a diameter at least as great as the exterior diameter of said arrow bolt and further comprising a pair of members extending parallel to the longitudinal axis of the arrow bolt, defining a slot, as the means for so engaging the rotating bolt indexer;

mounting the cylindrical crossbow arrow bolt onto the arrow bolt fletching tool by removeably inserting the corresponding polygonal male member comprising the bolt cap end of the fletching nock member into the corresponding polygonal aperture defined by the planar surface of the cap member inserted within the cylindrical crossbow arrow bolt, so as to provide for rotation of said arrow nock about its longitudinal axis when said bolt indexer is rotated, for fletching purposes; and

removing said arrow bolt having an inserted cylindrical bolt cap member from the bolt end of the fletching nock member upon completion of fletching.