Stiffened arrow nock
First Claim
Patent Images
1. A stiffened arrow nock comprising:
- a nock body having a central axis which is to be aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated generally cylindrical cavity therein aligned on said axis; and
an elongated stiffener of stronger material than the material of said nock body, said stiffener being tightly received in said elongated cavity and having a portion which is adapted to extend into said arrow shaft to stiffen the connection to the arrow and the region of said nock body which surrounds said stiffener, said nock body having a shoulder which abuts the end of said arrow shaft, said nock including an elongated member adapted to receive the end of said arrow shaft and wherein said elongated member is a plug having a cylindrical exterior surface, said cavity extending through said plug, said shoulder and said exterior cylindrical surface of said plug comprising the sole areas of contact of said nock with said arrow shaft.
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Accused Products
Abstract
A plastic archery arrow nock (10) having a stiffener of light weight high strength material such as carbon composite therein permits fine tuning alteration of the dynamic spine of the arrow and reduces flexure of the nock relative to the arrow shaft (12) to prevent fatigue failure of the nock. The stiffened nock reduces the flex in the nock and the connection of the nock to the arrow shaft arrow shaft (12) as it is propelled forward by acceleration of the bowstring at the moment of release.
26 Citations
9 Claims
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1. A stiffened arrow nock comprising:
- a nock body having a central axis which is to be aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated generally cylindrical cavity therein aligned on said axis; and
an elongated stiffener of stronger material than the material of said nock body, said stiffener being tightly received in said elongated cavity and having a portion which is adapted to extend into said arrow shaft to stiffen the connection to the arrow and the region of said nock body which surrounds said stiffener, said nock body having a shoulder which abuts the end of said arrow shaft, said nock including an elongated member adapted to receive the end of said arrow shaft and wherein said elongated member is a plug having a cylindrical exterior surface, said cavity extending through said plug, said shoulder and said exterior cylindrical surface of said plug comprising the sole areas of contact of said nock with said arrow shaft. - View Dependent Claims (2, 3)
- a nock body having a central axis which is to be aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated generally cylindrical cavity therein aligned on said axis; and
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4. A stiffened arrow nock comprising:
- a nock body having a central axis which is to be aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated generally cylindrical cavity therein aligned on said axis; and
an elongated stiffener of stronger material than the material of said nock body, said stiffener being tightly received in said elongated cavity and having a portion which is adapted to extend into said arrow shaft to stiffen the connection to the arrow and the region of said nock body which surrounds said stiffener, said nock body having a shoulder which abuts the end of said arrow shaft, said nock including an elongated member adapted to receive the end of said arrow shaft, wherein said elongated member comprises a sleeve (FIG.
3) having an interior cylindrical surface, said sleeve extending from said shoulder and being adapted to receive said arrow shaft, said stiffener having an exterior cylindrical surface which extends away from said cavity and is spaced from said interior cylindrical surface of said sleeve to confine the end of the arrow shaft therebetween. - View Dependent Claims (5)
- a nock body having a central axis which is to be aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated generally cylindrical cavity therein aligned on said axis; and
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6. A stiffened arrow nock comprising:
- a nock body having a central axis which is to be aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated generally cylindrical cavity therein aligned on said axis; and
an elongated stiffener of stronger material than the material of said nock body, said stiffener being tightly received in said elongated cavity and having a portion which is adapted to extend into said arrow shaft to stiffen the connection to the arrow and the region of said nock body which surrounds said stiffener, said nock body having a shoulder which abuts the end of said arrow shaft, and said stiffener having an abutment shoulder which abuts said abutment shoulder on said nock (FIG.
4). - View Dependent Claims (7)
- a nock body having a central axis which is to be aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated generally cylindrical cavity therein aligned on said axis; and
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8. An archery arrow comprising a shaft having a central axis and a stiffened arrow nock affixed thereto, said nock comprising:
- a nock body having a central axis aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated cavity therein aligned on said axis; and
an elongated stiffener of stronger material than the material of said nock body, said stiffener being tightly received in said elongated cavity and having a portion which is adapted to extend into said arrow shaft to stiffen the connection to the arrow and the region of said nock body which surrounds said stiffener, said nock body having a shoulder which abuts the end of said arrow shaft and said nock includes an elongate plug (FIG.
2) having a cylindrical exterior surface which extends into and contacts the interior wall of the arrow shaft, said cavity extending through said plug, said shoulder and said exterior cylindrical surface of said plug comprising the sole areas of contact with said arrow shaft.
- a nock body having a central axis aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated cavity therein aligned on said axis; and
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9. An archery arrow comprising a shaft having a central axis and a stiffened arrow nock affixed thereto, said nock comprising:
- a nock body having a central axis aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated cavity therein aligned on said axis; and
an elongated stiffener of stronger material than the material of said nock body, said stiffener being tightly received in said elongated cavity and having a portion which is adapted to extend into said arrow shaft to stiffen the connection to the arrow and the region of said nock body which surrounds said stiffener, wherein said nock body has a shoulder which abuts the end of said arrow shaft and said nock includes an elongate sleeve having an interior cylindrical surface (FIG.
3), said sleeve extending from said shoulder and receiving the end of said arrow shaft, said stiffener having an exterior cylindrical surface which is spaced from said interior cylindrical surface of said sleeve confining the end of said arrow shaft therebetween.
- a nock body having a central axis aligned with the centerline of an arrow shaft, an arrow shaft connecting end which is substantially centered on said axis, a bowstring receiving groove opening away from said arrow shaft connecting end, said nock body having an elongated cavity therein aligned on said axis; and
Specification