Universal nock system
First Claim
1. A universal nock system comprising:
- a first axis of elongation defining an axial direction and radial directions, each radial direction being perpendicular to the axial direction;
a nock portion having,a first side having a bowstring reception surface having multiple concave channels,a second side opposite the first side, and having an axial contact surface, andan exterior surface extending between the first side and the second side;
a substantially cylindrical insert portionextending from the second side of the nock portion,elongated along the first axis of elongation, andadapted for insertion into an associated arrow body,the insert portion having,a first end adjacent to the second side,a second end opposite the first end, the second end having a centering feature of the second end, the centering feature of the second end having a plurality of contact surfaces facing in a radial direction, anda middle portion located along the first axis of elongation between the first end and the second end, the middle portion having a centering feature of the middle portion, the centering feature of the middle portion having a plurality of contact surfaces facing in a radial direction;
wherein;
the bowstring reception surface has a number, N, of concave channels wherein N is at an integer greater than 2;
each channel is adapted to operationally receive an associated bowstring;
each channel is adapted to transmit forces from the associated bowstring during a firing operation;
each channel defines a channel axis that is substantially perpendicular to the first axis of elongation and is oriented at an angle .Theta. about the first axis of elongation with respect to at least one other channel axis;
Theta. is 360/N degrees;
the axial contact surface is adapted to engage the body of the associated arrow;
the axial contact surface is adapted to transmit forces from the associated bowstring during a firing operation;
the nock portion further comprises a interior surface defining a hole extending into the nock portion from the bowstring reception surface;
the interior surface defines a torque receptacle adapted to transmit a torque about the first axis of elongation;
the first end has an annular groove,adapted to serve as an overrun glue well;
adapted to serve as a geometric relief; and
defined by a fillet radius tangent to the contact surface.
3 Assignments
0 Petitions
Accused Products
Abstract
Provided is a universal nock system comprising a first axis defining an axial direction and radial directions perpendicular to the axial direction; a nock having, a first side having a bowstring reception surface having concave channels, a second side opposite the first side, an axial contact surface, and an exterior surface; an insert portion extending from the second side of the nock, elongated along the first axis, and adapted for insertion into an associated arrow body, the insert portion having, a first end, a second end opposite the first end having a centering feature of the second end, the centering feature of the second end having contact surfaces, and a middle portion located along the first axis of elongation between the first end and the second end, the middle portion having a centering feature of the middle portion, the centering feature of the middle portion having contact surfaces.
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Citations
17 Claims
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1. A universal nock system comprising:
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a first axis of elongation defining an axial direction and radial directions, each radial direction being perpendicular to the axial direction; a nock portion having, a first side having a bowstring reception surface having multiple concave channels, a second side opposite the first side, and having an axial contact surface, and an exterior surface extending between the first side and the second side; a substantially cylindrical insert portion extending from the second side of the nock portion, elongated along the first axis of elongation, and adapted for insertion into an associated arrow body, the insert portion having, a first end adjacent to the second side, a second end opposite the first end, the second end having a centering feature of the second end, the centering feature of the second end having a plurality of contact surfaces facing in a radial direction, and a middle portion located along the first axis of elongation between the first end and the second end, the middle portion having a centering feature of the middle portion, the centering feature of the middle portion having a plurality of contact surfaces facing in a radial direction; wherein; the bowstring reception surface has a number, N, of concave channels wherein N is at an integer greater than 2; each channel is adapted to operationally receive an associated bowstring; each channel is adapted to transmit forces from the associated bowstring during a firing operation; each channel defines a channel axis that is substantially perpendicular to the first axis of elongation and is oriented at an angle .Theta. about the first axis of elongation with respect to at least one other channel axis; Theta. is 360/N degrees; the axial contact surface is adapted to engage the body of the associated arrow; the axial contact surface is adapted to transmit forces from the associated bowstring during a firing operation; the nock portion further comprises a interior surface defining a hole extending into the nock portion from the bowstring reception surface; the interior surface defines a torque receptacle adapted to transmit a torque about the first axis of elongation; the first end has an annular groove, adapted to serve as an overrun glue well; adapted to serve as a geometric relief; and defined by a fillet radius tangent to the contact surface. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An arrow nock comprising:
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a first axis of elongation defining an axial direction and radial directions, each radial direction being perpendicular to the axial direction; a first axial end having a bowstring reception surface; and a second axial end, opposite the first axial end, comprising an insert portion adapted for insertion into an associated arrow body; wherein; the insert portion comprises a first centering feature having a plurality of contact surfaces facing in a radial direction; each contact surface of the first centering feature is defined by an axially-extending, elongated spring tab having a free end inherently biased outwardly in a radial direction and adapted to be radially deflected upon insertion of the insert portion into the associated arrow body; and each contact surface of the first centering feature is adapted to provide a radial reaction force on, and a corresponding frictional retaining force with, the associated arrow body when operationally engaged therewith; and an annular groove that is adapted to serve as an overrun glue well, adapted to serve as a geometric relief, and defined by a fillet radius tangent to the contact surface. - View Dependent Claims (8, 9, 10, 11, 15)
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12. An arrow nock comprising:
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a first axis of elongation defining an axial direction and radial directions, each radial direction being perpendicular to the axial direction; a first axial end having a bowstring reception surface; and a second axial end, opposite the first axial end, comprising an insert portion adapted for insertion into an associated arrow body; wherein; the insert portion comprises a first centering feature having a plurality of contact surfaces facing in a radial direction; each contact surface of the first centering feature is defined by an axially-extending, elongated spring tab having a free end inherently biased outwardly in a radial direction and adapted to be radially deflected upon insertion of the insert portion into the associated arrow body; and each contact surface of the first centering feature is adapted to provide a radial reaction force on, and a corresponding frictional retaining force with, the associated arrow body when operationally engaged therewith; the insert portion comprises a second centering feature axially spaced from the first centering feature; the second centering feature has a plurality of contact surfaces facing in a radial direction; each contact surface of the second centering feature is defined by an axially-extending, elongated spring tab having a free end inherently biased outwardly in a radial direction and adapted to be radially deflected upon insertion of the insert portion into an associated arrow body; and each contact surface of the second centering feature is adapted to provide a radial reaction force on, and a corresponding frictional retaining force with, an associated arrow body when operationally engaged therewith. - View Dependent Claims (13, 14, 16, 17)
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Specification