Ergonomic knob insert for hollow stick

Abstract

Described is a knob for application to the gripping end of a hollow stick. The knob comprises a rounded, oblique, cylindrical support structure, transitional shaft and tang aligned on a common longitudinal central axis. The support structure comprises a greater diameter rounded, cantle-like support and gripping structures.

Claims

1. A knob adapted for insertion into a hollow end of a sports stick comprising a shaft having a central longitudinal axis, a head at one end of the shaft, a gripping end at an opposing end of the shaft, and an outer surface, the knob comprising a central longitudinal axis that is coincident with the central longitudinal axis of the shaft, a tang and a tang end for insertion into the hollow end of the sports stick, a grip having a neck region, a flange region, and a grip end and a step between the tang and the grip adapted for abutting an end surface of the hollow end of the sports stick when the tang is inserted therein, the step comprising a flat planar surface adjoining a surface defined by the tang, the neck region positioned immediately adjacent to the step and having an outer gripping surface, the grip end having a planar bottom surface distal to the tang, and the flange region comprising a dorsal cantle region and a ventral cantle region, the dorsal and ventral cantle regions extending an entire distance between the neck region and the grip end and on opposing sides of an imaginary coronal plane containing the central longitudinal axis of the knob and bisected by an imaginary sagittal plane that contains the central longitudinal axis of the shaft and is orthogonal to the imaginary coronal plane, the dorsal and ventral cantle regions each providing a curved support surface for a hand of a user upon gripping the sports stick, the dorsal cantle region and the ventral cantle region each having a constant radius of curvature in the sagittal plane, the radius of curvature of the ventral cantle region being greater than the radius of curvature of the dorsal cantle region, the ventral cantle region and the head being on the same side of the imaginary coronal plane, the dorsal cantle region and the head being on opposite sides of the imaginary coronal plane, and the neck region having a length extending an entire distance from the step to the dorsal cantle region and the ventral cantle region with the gripping surface of the neck region being equidistant from the central longitudinal axis along the length of the neck region and around an entire outer periphery thereof, the gripping surface of the neck region and the outer surface of the sports stick combining to form a smooth continuous gripping surface between the sports stick and the grip.

2. The knob of claim 1 wherein a ratio of the radius of curvature of the ventral cantle region to the radius of curvature of the dorsal cantle region is (i) at least 2:1, respectively; or (ii) at least 3;1, respectively; or (iii) at least 5.1, respectively.

3. The knob of claims 1 wherein a ratio of the radius of curvature of the ventral cantle region to the radius of curvature of the dorsal cantle region is (i) less than 20:1; or (ii) less than 15:1; or (iii) less than 10:1.

4. The knob of claim 1 wherein the imaginary sagittal plane bisects each of the dorsal and the ventral cantle regions into symmetrical halves, respectively and the imaginary coronal plane intersects with the imaginary sagittal plane at the central longitudinal axis in a center of the planar bottom surface.

5. The knob of claim 1 wherein the ventral cantle region smoothly transitions about the central longitudinal axis to the dorsal cantle region.

6. The knob of claim 1 wherein the neck has a circumference and the grip end has a circumference that (i) is at least 110% of the circumference of the neck; or (ii) at least 150% of the circumference of the neck; or (iii) at least 200% of the circumference of the neck; or (iv) at least 300% of the circumference of the neck.

7. The knob of claim 1 wherein the tang has a length measured along the central longitudinal axis of 2 inches to 3 inches, and wherein the tang has an end that is beveled at an angle of 30° to 60° from the longitudinal sides of the tang and toward the longitudinal central axis to allow for easier initial guided insertion of the tang into the hollow end of the stick.

8. The knob of claim 1 wherein (i) the grip has a length, as measured along the central longitudinal axis, that is 40% to 60% of the length of the knob and the tang has a complementary length, as measured along the central longitudinal axis that is 60% to 40% of the length of the knob.

9. The knob of claim 1 wherein (i) the neck has a length measured along the central longitudinal axis between 0.5 to 1.5 inches.

10. The knob of any of claim 1 wherein (i) the knob comprises a ceramic, metal, polymer, composite, wood or a composite or laminate thereof; or (ii) the knob comprises a ceramic, metal, polymer, composite, or a composite or laminate thereof.

11. A combination of a hockey stick and a knob, the knob corresponding to the knob of claim 1 and being inserted into a hollow end of the hockey stick wherein the ventral cantle region of knob is on the same side of the hockey stick as a blade of the hockey stick.

12. The knob of claim 1 wherein the knob is securely affixed to the sports stick, by welding, screws, nails, staples, glue, adhesive, heat-activated glue, or epoxy.

13. A knob adapted for insertion into a hollow end of a sports stick comprising a shaft having a first thickness, a central longitudinal axis, a head at one end of the shaft, a gripping end at an opposing end thereof, and an outer surface, the knob comprising a central longitudinal axis that is coincident with the central longitudinal axis of the shaft, a neck region having an outer gripping surface, a tang and a tang end for insertion into the hollow end of the sports stick, the grip comprising the neck region, a flange region, and a grip end, and a step between the tang and the grip adapted for abutting an end surface of the hollow end of the sports stick when the tang is inserted therein, the step comprising a flat planar surface adjoining a surface defined by the tang and being positioned immediately adjacent to the neck region and having a second thickness being sized to match the first thickness of the sports stick to provide a smooth transition between the outer gripping surface of the neck region and the outer surface of the sports stick, the grip end having a planar bottom surface distal to the tang, the flange region comprising a dorsal cantle region and a ventral cantle region, the dorsal and ventral cantle regions extending an entire distance between the neck region and the grip end and on opposing sides of an imaginary coronal plane containing the central longitudinal axis of the knob and bisected by an imaginary sagittal plane that contains the central longitudinal axis and is orthogonal to the imaginary coronal plane, the dorsal and ventral cantle regions each providing a continuously curved support surface, wherein the dorsal cantle region and ventral cantle region are asymmetric relative to each other about the coronal plane and the sagittal plane bisects each of the ventral and the dorsal cantle regions into symmetrical halves, respectively, the neck region having a length with the neck region extending from the step to the dorsal cantle region and the ventral cantle region with the outer surface of the neck region being equidistant from the central longitudinal axis along the length of the neck region and around an entire outer periphery thereof.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a profile view of a knob of the present disclosure for use in combination with a sports stick;

(2) FIG. 2 is a detail view of the knob of FIG. 1 with a portion of the tang 1.4 removed;

(3) FIG. 2A is a cross-section of the knob of FIG. 1 taken along imaginary plane 2.14 and perpendicular to the central longitudinal axis;

(4) FIG. 2B is a cross-section of the knob of FIG. 1 taken along imaginary plane 2.13 and perpendicular to the central longitudinal axis;

(5) FIG. 2C is a cross-section of the knob of FIG. 1 taken along imaginary plane 2.12 and perpendicular to the central longitudinal axis;

(6) FIG. 3A is a front view of the knob of FIG. 1.

(7) FIG. 3B is a cross-section of the knob of FIG. 3A, taken along sagittal plane SP;

(8) FIG. 3C is a cross-section of the knob of FIG. 3A, taken along sagittal plane SP and is the complementary cross-section to the cross-section of FIG. 3B;

(9) FIG. 4 is a back view of the knob with flange, shaft and tang of FIG. 1;

(10) FIG. 5 is a profile view of the embodiment of FIG. 1, inserted into a fragmentary of a hollow rectangular stick (shown in phantom) with a gripping hand;

(11) FIG. 6 is a ¾ below perspective view of the embodiment of FIG. 1., with a fragmentary of a hollow rectangular stick;

(12) FIG. 7 is a ¾ below perspective of the embodiment of the grip portion of FIG. 2, with an octagonal tang with a fragmentary of a hollow octagonal stick;

(13) FIG. 8 is a top view of the knob for application with a hollow rectangular stick;

(14) FIG. 9 is a top view of the knob for application with a hollow octagonal stick;

(15) FIG. 10 is a profile view of a complete hockey stick with the embodiment of FIG. 1. inserted in the end with a gripping hand:

(16) FIG. 11 is an enlarged, fragmentary, profile view of FIG. 10;

(17) FIG. 12 is a profile view of a lacrosse stick with the embodiment of FIG. 7 inserted in the end with a gripping hand;

(18) FIG. 13 is an enlarged, fragmentary, profile view of FIG. 12;

(19) FIG. 14 is a profile view of a baseball bat with the embodiment of FIG. 1 with round tang inserted into the handle end with a gripping hand;

(20) FIG. 15 is a profile view of a golf club with the embodiment of FIG. 1. with round tang inserted in the end with a gripping hand;

(21) FIG. 16 is a profile view of the knob with support flange, shaft and tang for application with a rectangular stick with a flat butt end;

(22) FIG. 17 is a profile view of the knob with support flange, shaft and tang for application with a rectangular stick with a rounded butt end;

(23) FIG. 18 is a profile view of the knob with support flange, shaft and tang for application with a rectangular stick with a thick gripping butt end.

(24) FIG. 19A is a profile view of the knob with support flange and tang for application with a round sport stick.

(25) FIG. 19B is a top view of the knob of FIG. 19A.

(26) FIG. 20 is a fragmentary profile view of a solid bat handle and angled knob with a cavity for housing a sensor; and

(27) FIG. 21 is a knob-end view of FIG. 20.

(28) Corresponding reference characters indicate corresponding parts throughout the drawings.

ABBREVIATIONS AND DEFINITIONS

(29) The following definitions and methods are provided to better define the present disclosure and to guide those of ordinary skill in the art in the practice of the present disclosure. Unless otherwise noted, terms are to be understood according to conventional usage by those of ordinary skill in the relevant art.

(30) The term “axially symmetric” as used herein refers to symmetry about an axis in a direction that is perpendicular to the axis.

(31) The term “cantle” as used herein in connection with a surface refers to a surface that is curved upwardly similar to the raised, curved part at the back of a horse saddle. In the context of the present disclosure, the cantle is adapted to engage the hypothenar of the gripping hand. Like a cantle of a saddle, which cradles the gluteus maximus or bottom of a rider, the cantle-like structure of the knob described herein cradles the hypothenar of the hand in the same way giving support, stability and increased surface area contact to the hand throughout a swing.

(32) The term “coronal plane” as used herein refers to a plane containing the central longitudinal axis dividing a knob of the present disclosure (or an element thereof) into ventral and dorsal (anterior and posterior, respectively) sections. The coronal plane is orthogonal to the sagittal plane, and the two planes intersect along the central longitudinal axis.

(33) The term “sagittal plane” as used herein refers to a vertical, longitudinal plane containing the central longitudinal axis which passes from anterior to posterior along the central longitudinal axis, dividing a knob of the present disclosure (or an element thereof) into right and left halves. The sagittal plane is orthogonal to the coronal plane, and the two planes intersect along the central longitudinal axis.

(34) The term “supplementary angles” as used herein refers to two angles having a sum of 180 degrees.

(35) When introducing elements of the present disclosure or the embodiments(s) thereof, the articles “a”, “an”, “the” and “said” are intended to mean that there are one or more of the elements. The terms “comprising”, “including” and “having” are intended to be inclusive and not exclusive (i.e., there may be other elements in addition to the recited elements). The use of “or” means “and/or” unless specifically stated otherwise, and the use of the singular includes the plural and plural encompasses singular, unless specifically stated otherwise.

EMBODIMENTS

(36) In brief overview, the present disclosure features an ergonomic knob for use with a hollow swinging implement used in a sport such as a stick or club used to play hockey, lacrosse, baseball (including softball), cricket, or golf. More specifically, the knob is adapted to be inserted into the hollow end of such a stick or club and aligns with the range of motion and grip of the hand to provide increased support, increased surface area contact, increased grip stability, increased swing precision, increased stick control, increased swing-power transfer from hands through the stick to the targeted object and a reduction of injury causing compression factors.

(37) The knob may be formed from any of a variety of materials that provide the mechanical strength and tactile properties for the sport. Typically, therefore, the knob will comprise a ceramic, metal, polymer, composite, wood or a composite or laminate thereof. For example, in some embodiments the knob comprises a metal or an alloy thereof. Exemplary metals and metal alloys include aluminum, aluminum alloys, nickel, nickel alloys such as nickel iron, and cobalt alloys such as cobalt phosphorous. By way of further example, in some embodiments the knob comprises a polymer such as an epoxy resin, polyamine, polyamide, polycarbonate, polyester, polyether, polyimide, polyurethane, polyvinyl chloride, laser-fused plastic powders, or a copolymer or blend thereof. By way of further example, in some embodiments the knob comprises a composite such as a fiber-reinforced polymer wherein the polymer is one of the aforementioned polymers or a co-polymer or blend thereof, and the reinforcing fiber comprises aluminum fibers, an aramid or other polymeric fibers, carbon fibers, ceramic fibers, carbon nanotubes, glass fibers or a combination thereof. By way of further example, in one embodiment the knob is a laminate of wood or a polymeric material and a fiber-reinforced composite. Additionally, the knob may be solid, or wholly or partly hollow.

(38) The knob is adapted to be inserted into the hollow shaft of a swinging implement adapted for sports. In some embodiments, the hollow shaft into which the knob is inserted may comprise a material other than wood. For example, the hollow shaft may comprise a material selected from the group consisting of ceramics, metals, polymers, composites, and combinations thereof (in laminate or non-laminate form). For example, in some embodiments the hollow shaft of the swinging implement comprises a metal or an alloy thereof. Exemplary metals and metal alloys include aluminum, aluminum alloys, nickel, nickel alloys such as nickel iron, and cobalt alloys such as cobalt phosphorous. By way of further example, in some embodiments the hollow shaft comprises a polymer such as an epoxy resin, polyamine, polyamide, polycarbonate, polyester, polyether, polyimide, polyurethane, polyvinyl chloride, or a copolymer or blend thereof. By way of further example, in some embodiments the hollow shaft comprises a composite such as a fiber-reinforced polymer wherein the polymer is one of the aforementioned polymers and the reinforcing fiber comprises aluminum fibers, an aramid or other polymeric fibers, carbon fibers, ceramic fibers, carbon nanotubes, glass fibers or a combination thereof. By way of further example, in one embodiment the hollow shaft comprises a laminate comprising an outer layer of resin-impregnated wood veneer formed integrally with an inner sheath of a fiber-reinforced fabric and resin composite. By way of further example, in one embodiment the hollow shaft the two outer layers are formed over a core which may be formed of foamed plastic core. In an alternative embodiment, the foam core extends through the handle area and the blade is formed of synthetic fibers overlaid and bonded to an outer wood veneer sheath by resin which impregnates both layers.

(39) Referring now to FIG. 1, a knob in accordance with one embodiment of the present disclosure is generally indicated by the reference numeral 1.1. Knob 1.1 comprises a grip 1.3 and a tang 1.4 disposed along central longitudinal axis 1.2.

(40) Tang 1.4 extends from tang end 1.6 to step 1.31, and is adapted for being inserted into the hollow end of a sports stick (not shown). In some embodiments, the outer diameter and cross-sectional shape of the tang is adapted to conform to and closely fit the inner longitudinal cross-section diameter and interior of the hollow stick. For example, the tang may have a polygonal (e.g., triangular, rectangular, pentagonal, hexagonal, etc.) oval, round or other regular or irregular cross-sectional shape that is adapted to conform to and closely fit the inner cross-sectional shape of the hollow swinging implement. Additionally, the tang will have a length (measured along central longitudinal axis 1.2) to provide adequate insertion depth into the hollow swinging implement to provide a secure and solid connection between the knob and the stick. For example, in one embodiment tang 1.4 has a length (measured along central axis 1.2) of about 2 inches to about 3 inches. By way of further example, in one embodiment tang 1.4 has a length of about 3 inches to about 5 inches. By way of further example, in one embodiment tang 1.4 has a length of about 5 inches to about 12 inches. Additionally, in one embodiment, upon insertion of tang 1.4 into the hollow end of the sports stick, central longitudinal axis 1.2 is aligned with the central longitudinal axis of the sports stick to provide a shared common longitudinal axis. There are many options for securing the tang to the interior shaft of the hollow stick which include, but are not limited to screws, nails, staples, glue, adhesive, heat-activated glue, epoxies, tapes and others. The tang end 1.6 is beveled 1.61, generally 30° to 60° from the longitudinal sides toward the central axis of the knob, to allow for easier initial guided insertion of the tang into the hollow end of the stick.

(41) Step 1.31 is adapted to abut the end of the sports stick when tang is inserted into the hollow end thereof and is sized to provide a smooth transition to outer surface 2.7. In general, therefore, step will typically have a size that matches the thickness of the wall of the sports stick (see, e.g., FIGS. 5, 6 and 7).

(42) Grip 1.3 is adapted to provide a structure and surface that enables an athlete to firmly grasp knob 1.1 while supporting an athlete's gripping hand (FIG. 5). Grip 1.3 extends from step 1.31 to bottom surface 1.7 and includes neck region 1.9, flange region 1.8, and grip end 1.5. In one embodiment and referring now to FIGS. 3A, 3B and 3C, grip 1.3 is divided into two parts by imaginary sagittal plane SP. In one such embodiment, grip 1.3 is bisected by imaginary sagittal plane SP. Stated differently, in this embodiment cross-section 1.3B (FIG. 3B) and cross-section 1.3C (FIG. 3C), respectively, are mirror images of each other.

(43) Referring now to FIG. 2, neck 1.9 is adapted to provide a gripping surface for the palm, thumb, and fingers of the gripping hand of an athlete (see FIG. 5) and a smooth transition from the step 1.31 and hollow end of the sports stick to flange 1.8 when tang 1.4 is inserted into the hollow end of the sports stick. In one such embodiment, neck 1.9 is sized and constructed to abut step 1.31 against the insertion-end of the sports stick with parallel surface alignment of outer surface 2.7 of the neck with the outer longitudinal surfaces of the hollow stick. For example, in one embodiment, at step 1.31 the neck has an outer diameter and cross-sectional shape adapted to conform to the outer diameter and cross-sectional shape of a swinging implement. Moving in the direction from step 1.31 to grip end 1.5, the neck transitions from a cross section that matches the cross-section of the outer longitudinal surfaces of the hollow stick (when viewed in cross-section perpendicular to central longitudinal axis 1.2) to a smooth, cross-section (e.g., rounded cross-section) in the region of imaginary plane 2.14. Stated differently, and referring now to FIG. 2A in one embodiment imaginary points CP1 and CP2 and imaginary points VC1 and DC1 are approximately equidistant from central longitudinal axis 1.2 at imaginary plane 2.14.

(44) The neck can be of varying lengths, cross sectional shapes and perimeters without departing from the principles of the disclosure. For example, in one embodiment neck 1.9 has a length (measured along central longitudinal axis 1.2) of at least about 0.25 inches. In general, however, neck will have a length of less than about 12 inches. In some exemplary embodiments, the neck will have a length of about 0.25 to about 4 inches. In other embodiments, the neck will have a length of about 1 to 4 inches. In other embodiments, the neck will have a length of about 1 to about 2 inches. In other embodiments, the neck will have a length of about 0.5 to about 1.5 inches.

(45) Referring again to FIG. 2, flange 1.8 extends between neck 1.9 and grip end 1.5 and is adapted to provide a gripping and supporting surface for the little finger (sometimes referred to as the “small finger” or the “pinky”) and the hypothenar of the athlete's gripping hand (see FIG. 5). Flange 1.8 smoothly increases in circumference from imaginary transverse plane 2.14 to grip end 1.5. To provide the desired support, flange 1.8 comprises ventral cantle region 5.1 and dorsal cantle region 5.2 that support the small finger and hypothenar, respectively. In general, ventral cantle region 5.1 and dorsal cantle region 5.2 are separated by imaginary coronal plane CP (coincident with central longitudinal axis 1.2 in FIGS. 2 and 5; see FIGS. 6 and 7). Additionally, and moving along central longitudinal axis 1.2 in a direction toward grip end 1.5, ventral cantle region 5.1 and dorsal cantle region 5.2 gradually curve away from central longitudinal axis with dorsal cantle region 5.2 having a radius of curvature R.sup.DC that is less than the radius of curvature R.sup.VC of ventral cantle region 5.1 (see FIG. 1). For example, in one embodiment, the ratio of R.sup.DC to R.sup.VC will be at least 2:1. By way of further example, in one embodiment the ratio of R.sup.DC to R.sup.VC will be at least 3:1. By way of further example, in one embodiment the ratio of R.sup.DC to R.sup.VC will be at least 4:1. By way of further example, in one embodiment the ratio of R.sup.DC to R.sup.VC will be at least 5:1. In general, however, the ratio of R.sup.DC to R.sup.VC will be less than about 20:1.

(46) Thus, for example, in some embodiments the ratio of R.sup.DC to R.sup.VC will be in the range of about 3:1 to about 20:1. By way of further in one embodiment the ratio of R.sup.DC to R.sup.VC will be in the range of about 4:1 to about 17.5:1. By way of further in one embodiment the ratio of R.sup.DC to R.sup.VC will be in the range of about 5:1 to about 15:1. By way of further in one embodiment the ratio of R.sup.DC to R.sup.VC will be in the range of about 5:1 to about 10:1. As a result of the difference in the radii of curvature (i.e., R.sup.VC>R.sup.DC) the volume of dorsal cantle region exceeds the volume of ventral cantle region. This difference in volume may be seen, for example, in FIGS. 2B and 2C, which illustrate cross-sections of flange 1.8 taken along imaginary planes 2.13 and 2.12, respectively. As depicted in FIG. 2B, the distance from central longitudinal axis to imaginary point DC2 at the surface of the dorsal cantle region exceeds the distance from central longitudinal axis to imaginary point VC2 at the surface of the ventral cantle region and the semicircle on the dorsal side of coronal plane CP (i.e., the semicircle containing imaginary points CP3, CP4 and DC2 and coronal plane CP) has a greater surface area than the semicircle on the ventral side of coronal plane CP (i.e., the semicircle containing imaginary points CP3, CP4 and VC2 and coronal plane CP). Similarly, and as depicted in FIG. 2C, the distance from central longitudinal axis to imaginary point DC3 at the surface of the dorsal cantle region exceeds the distance from central longitudinal axis to imaginary point VC3 at the surface of the ventral cantle region and the semicircle on the dorsal side of coronal plane CP (i.e., the semicircle containing imaginary points CP5, CP6 and DC3 and coronal plane CP) has a greater surface area than the semicircle on the ventral side of coronal plane CP (i.e., the semicircle containing imaginary points CP5, CP6 and VC3 and coronal plane CP). Additionally, ventral cantle region 5.1 and dorsal cantle region 5.2 each increase in size moving along central longitudinal axis in the direction of grip end 1.5. Stated differently, the cross-sectional area of ventral cantle region 5.1 and dorsal cantle region 5.2 taken along imaginary plane 2.12 exceeds the cross-sectional area of ventral cantle region 5.1 and dorsal cantle region 5.2 taken along imaginary plane 2.13. As a result, ventral cantle region 5.1 provides a more gradual transition between the neck 1.9 and grip end 1.5, thereby providing a more comfortable resting place for the hypothenar or “heal” of the hand, the palmar arches, and the fifth digit (i.e., pinky finger).

(47) Grip end 1.5 is configured to cooperate with the user's hand so as to help prevent the user's hand from slipping from the grip 1.3 and terminates in generally planar bottom surface 1.7 disposed at an oblique angle relative to central longitudinal axis 1.2. In general, the grip end will have a circumference that exceeds the circumference of the neck 1.9 proximate step 1.31. For example, in one embodiment grip end 1.5 will have a circumference that is at least 110% of the circumference of the neck 1.9 proximate step 1.31. By way of further example, in one embodiment grip end 1.5 will have a circumference that is at least 150% of the circumference of the neck 1.9 proximate step 1.31. By way of further example, in one embodiment grip end 1.5 will have a circumference that is at least 200% of the circumference of the neck 1.9 proximate step 1.31. Typically, however, grip end 1.5 will have a circumference that is less than 300% of the circumference of the neck 1.9 proximate step 1.31. Thus, in some embodiments grip end 1.5 will have a circumference that is in the range of about 110 to 300% of the circumference of the neck 1.9 proximate step 1.31. For example, in some embodiments grip end 1.5 will have a circumference that is in the range of 110-150%, 150 to 200% or even 200-300% of the circumference of the neck 1.9 proximate step 1.31.

(48) In one embodiment, surface 1.7 of grip end is at an oblique angle relative to central longitudinal axis. For example, and referring now to FIG. 2 in one embodiment angle A is between 90 and 170 degrees and angle B is between 10 and 90 degrees, wherein angles A and B are supplementary angles. By way of further example, in one embodiment A is between 90 and 120 and degrees and angle B is between 90 and 60 degrees, wherein angles A and B are supplementary angles. By way of further example in one embodiment A is between 120 and 170 degrees and angle B is between 60 and 10 degrees, wherein angles A and B are supplementary angles.

(49) In one embodiment, grip 1.3 will have a length, as measured along central longitudinal axis 1.2, that is about 5 to about 95% of the distance between grip end 1.5 and tang end 1.6 and tang 1.4 will have a complementary length, as measured along central longitudinal axis 1.2, that is about 95 to about 5% of the distance between grip end 1.5 and tang end 1.6. For example, in one such embodiment, grip 1.3 will have a length, as measured along central longitudinal axis 1.2, that is about 15 to about 85% of the distance between grip end 1.5 and tang end 1.6 and tang 1.4 will have a complementary length, as measured along central longitudinal axis 1.2, that is about 85 to about 15% of the distance between grip end 1.5 and tang end 1.6. By way of further example, in one embodiment grip 1.3 will have a length, as measured along central longitudinal axis 1.2, that is about 25 to about 75% of the distance between grip end 1.5 and tang end 1.6 and tang 1.4 will have a complementary length, as measured along central longitudinal axis 1.2, that is about 75 to about 25% of the distance between grip end 1.5 and tang end 1.6. By way of further example, in one embodiment grip 1.3 will have a length, as measured along central longitudinal axis 1.2, that is about 35 to about 65% of the distance between grip end 1.5 and tang end 1.6 and tang 1.4 will have a complementary length, as measured along central longitudinal axis 1.2, that is about 65 to about 35% of the distance between grip end 1.5 and tang end 1.6. By way of further example, in one embodiment grip 1.3 will have a length, as measured along central longitudinal axis 1.2, that is about 40 to about 60% of the distance between grip end 1.5 and tang end 1.6 and tang 1.4 will have a complementary length, as measured along central longitudinal axis 1.2, that is about 60 to about 40% of the distance between grip end 1.5 and tang end 1.6.

(50) FIG. 3A shows the knob in front view with the ventral cantle region shown comprising generally half the circumference of the knob and smoothly transitioning to the dorsal cantle gripping surface on the opposing side of the knob as shown in FIG. 4. The two longitudinal oppositional halves of the knob, shown in FIGS. 3B and 3C, with the shared sagittal plane SP are mirrored shapes, providing the same structural support to hypothenar of a gripping hand, regardless of which hand is gripping the knob—left hand or right hand.

(51) FIG. 4 is a rear view of the knob 1.1 and depicts dorsal cantle region 5.2 (shown in dashed lines. As previously described, dorsal cantle region smoothly transitions to the ventral cantle region on the opposing side of the knob (see FIG. 3). The two longitudinal halves of the knob, left longitudinal half 4.2 and right longitudinal half 4.3 are separated by the imaginary plane (coincident with central longitudinal axis 1.2) are mirrored shapes, providing the same structural to the little finger of a gripping hand, regardless of which hand is gripping the knob—left hand or right hand.

(52) FIG. 5 shows the embodiment of FIG. 1 (with tang 1.4 inserted into the hollow end of a sports stick (shown in phantom) having a sports stick longitudinal axis 5.5 that is coincident with central longitudinal axis 1.2) with a gripping right hand wherein the hypothenar of the gripping hand is cradled by the ventral cantle region, generally indicated 5.1, and wherein the small finger is gripping the dorsal cantle structure generally indicated 5.2. Given the longitudinal symmetry of the knob (about the imaginary sagittal plane) as described above, the gripping hand, left or right, gripping the same knob will properly align with the structures of the knob with either hand to provide proper support and grip. Additionally, this arrangement allows the small finger of the gripping hand to firmly grasp, generally around the central axis of the knob, in opposition to the hypothenar, thereby enabling a strong and stable grip on the knob and thus to the stick to which the knob is attached.

(53) FIG. 6 shows a ¾ rear view of the embodiment of FIG. 1, with a generally rectangular tang, 1.4, for close longitudinal insertion into a hollow, generally rectangular stick, as indicated 6.4, as a greater number of hockey sticks are comprised. Neck 1.9 provides a transition from the generally smoothly curved flange (as previously described in connection with FIGS. 1 and 2) to a generally smaller diameter, cross sectional shape, whose outer most circumference dimensions, align with the outer most cross-sectional circumference dimensions of the hollow end of the stick to which the knob is affixed. FIG. 6 shows the tang structure 1.4 shaped and aligned for close insertion into the hollow, longitudinal end of a hockey stick, 6.4 having longitudinal axis 5.5. Upon insertion of tang 1.9 into the hollow end of the stick, central longitudinal axis 1.2 and stick longitudinal axis 5.5 are coincident.

(54) FIG. 7 shows a ¾ rear view of an alternative embodiment of FIG. 1, with a generally octagonal tang, 7.2, for close longitudinal insertion into a hollow, generally octagonal stick 7.4, as the greater number of lacrosse sticks are comprised. In this embodiment, tang 7.2 has an octagonal cross-section to match the cross-section of stick 7.4. The neck 7.3, transitions the generally round cross section of the flange to a generally octagonal cross section as demonstrated in the description of FIG. 2.

(55) FIG. 6 and FIG. 7 demonstrate just two of a multitude of possible combinations of tang shape and hollow stick shapes which can allow the present disclosure to be affixed to any number of hollow sticks, handles, shafts and the like.

(56) FIG. 8 shows a top view of the embodiment shown in FIG. 6, from the generally rectangular tang-end 1.6 of the knob with the central longitudinal axis of the knob indicated as 1.2. The top view of the ventral cantle region is generally indicated 8.1 and the top view of the dorsal cantle gripping structure is generally indicated 8.2. The mirrored longitudinal halves of the knob, as previously described, are generally indicated 8.5 and 8.6. Beveled surface 1.61 provides a transition from tang end 1.6 to outer surface 2.7. The neck and tang as shown are configured for alignment with a generally rectangular hollow stick similar to those comprising hockey sticks.

(57) FIG. 9 shows a top view of the embodiment shown in FIG. 7 of a generally octagonal tang, from the tang-end of the knob with the central longitudinal axis of the knob indicated as 1.2. The top view of the ventral cantle region is generally indicated 9.1, and the top view of the dorsal cantle gripping structure is generally indicated 9.2. The mirrored longitudinal halves of the knob, as previously described, are generally indicated 9.5 and 9.6. Beveled surface 1.61 provides a transition from tang end 1.6 to outer surface 2.7. The neck and tang as shown are configured for alignment with a generally octagonal hollow stick.

(58) As demonstrated in FIG. 8 and FIG. 9, the dorsal and ventral cantle support and gripping structures remain generally unchanged while the shape of the tang and the neck of the knob may comprise different dimensions and shapes without departing from the scope of the disclosure.

(59) FIG. 10 shows the knob and hand of FIG. 5, with the tang of the knob fully inserted to a hockey stick, as indicated 10.1. The knob is affixed to the stick in an orientation which specifically brings the proper gripping relationship of the hand and the stick into proper alignment wherein the blade, as shown 10.2, aligns on the same side 10.3 of the stick as the ventral cantle region of the knob. In this embodiment, central longitudinal axis 1.2 is coincident with longitudinal axis 5.5 of the hockey stick.

(60) FIG. 11 shows in greater detail, the knob, gripping hand and fragmentary of the hockey stick from FIG. 10., wherein the knob 1.1 is fully inserted into the hollow end of the hockey stick 11.2. The central longitudinal axis of the knob, 1.2 is shown in coincident parallel overlay 11.3, with the central longitudinal axis of the hockey stick 5.5. Further, the external longitudinal surfaces of the hockey stick directly abut the external longitudinal surfaces of the neck of the knob providing a smooth contiguous surface from stick to knob.

(61) FIG. 12 shows the knob of FIG. 7, with gripping hand, fully affixed to a lacrosse stick, as indicated 12.1. The knob is affixed to the stick in an orientation which specifically brings the gripping relationship of the hand and the stick into proper alignment wherein the net-side of the head, as shown 12.2, aligns on the same side of the stick as the ventral cantle-like supporting surface of the knob 12.3. This is generally the proper relationship for the base-gripping hand to engage a lacrosse stick.

(62) FIG. 13 shows in greater detail, the knob, gripping hand and fragmentary of the lacrosse stick from FIG. 12, wherein the knob is fully inserted into the hollow end of the lacrosse stick. The central longitudinal axis of the knob, 1.2 is shown in coincident parallel overlay 13.3, with the central longitudinal axis of the lacrosse stick 5.5. Further, the external longitudinal surfaces of the lacrosse stick directly abut the external longitudinal surfaces of the neck of the knob providing a smooth contiguous surface from stick to knob.

(63) FIG. 14 shows the knob 14.2 of FIG. 7 inserted into the hollow end of a baseball bat 14.1, being gripped by a gripping hand.

(64) FIG. 15 shows the knob 15.4 of FIG. 7 inserted into the hollow end of a golf club 15.1 being gripped by a gripping hand. The knob is affixed to the stick wherein the ventral cantle gripping structure of the knob is aligned on the same side of the sagittal plane as the club head and the dorsal cantle region is on the opposite side of the sagittal plane from the club head as shown 15.2.

(65) In yet another embodiment of the disclosure, as shown in FIG. 16, surface 16.1 of grip end is substantially perpendicular to central longitudinal axis 1.2. In this embodiment, grip end 1.5 is wedge shaped but the structure and features of neck 1.9, flange 1.8 (including ventral and dorsal cantle regions 5.1 and 5.2) and grip end 1.5 are as previously described in connection with FIGS. 1 and 2.

(66) In yet another embodiment of the disclosure, as shown in FIG. 17, surface 17.1 of grip end is substantially dome-shaped but the structure and features of neck 1.9, flange 1.8 (including ventral and dorsal cantle regions 5.1 and 5.2) and grip end 1.5 are as previously described in connection with FIGS. 1 and 2.

(67) In yet another embodiment of the disclosure, as shown in FIG. 18, surface 18.1 of grip end is substantially planar and disposed at an oblique angle relative to central longitudinal axis 1.2. In this embodiment, grip-end 1.5 is proportionately (relative to flange 1.8) larger than in certain other embodiments described herein but the structure and features of neck 1.9 and flange 1.8 (including ventral and dorsal cantle regions 5.1 and 5.2) are as previously described in connection with FIGS. 1 and 2.

(68) In yet another embodiment of the disclosure, as shown in FIG. 19A, knob 19.1 includes tang 1.4 and grip 1.3, but grip 1.3 does not include a neck 1.9. Stated differently, grip 1.3 includes only flange 1.8 and grip end 1.5. In this embodiment, the structure and features of flange 1.8 (including ventral and dorsal cantle regions 5.1 and 5.2) and grip end 1.5 are as previously described in connection with FIGS. 1 and 2. Additionally, grip end 1.5 may possess any of the alternative shapes as described, for example, in connection with FIGS. 16, 17 and 18. In yet another embodiment of the disclosure, the knob includes a tang and grip, the grip optionally does not include a neck and the tang a circular cross-section (when viewed in cross-section perpendicular to central longitudinal axis 1.2). This embodiment is illustrated in FIG. 19B which is a top view of FIG. 19A featuring a tang having a round cross-sectional shape. In this embodiment, the structure and features of neck 1.9, if present, flange 1.8 (including ventral and dorsal cantle regions 5.1 and 5.2) and grip end 1.5 are as previously described in connection with FIGS. 1 and 2. Additionally, grip end 1.5 may possess any of the alternative shapes as described, for example, in connection with FIGS. 16, 17 and 18.

(69) In another embodiment of the present disclosure, and referring now to FIG. 20, knob 1.1 includes an internal cavity 22.2 to accommodate an electronic device 22.4 such as an accelerometer or other electronic sensor to monitor an athlete's swing when tang 1.4 is inserted into the hollow end of a sports stick such as a baseball bat (see, e.g., FIG. 14). In this embodiment, electronic device has a central axis 22.5 that is aligned with knob central longitudinal axis 1.2. The electronic device may be held by friction fit, adhesive, a mechanical fastener, and the like. Optionally, cavity 22.2 is enclosed by cover 22.6 after electronic device 22.4 is inserted into cavity. Exemplary electronic devices include Zepp brand electronic motion sensors sold by Zepp Labs (Los Gatos, Calif.) and those described in U.S. Pat. No. 8,725,452 (which is incorporated herein in its entirety).

(70) The present disclosure further includes the following enumerated embodiments.

(71) Embodiment 1. A knob adapted for insertion into the hollow end of a sports stick, the knob comprising a central longitudinal axis, a tang for insertion into the hollow end of the sports stick, a grip adapted for being grasped by the hand of an athlete, and a step between the tang and the grip adapted for abutting the end surface of the hollow end of the sports stick when the tang is inserted therein, the grip comprising a grip end distal to the tang, a dorsal cantle region and a ventral cantle region, the dorsal and ventral cantle regions being between the tang and the grip end and on opposing sides of an imaginary coronal plane containing the central longitudinal axis and divided by an imaginary sagittal plane that contains the central longitudinal axis and is orthogonal to the imaginary coronal plane, the dorsal and ventral cantle regions each providing a curved support surface for the hand of the athlete when the athlete is gripping the sports stick, the dorsal cantle region and the ventral cantle region each having a radius of curvature in the sagittal plane, the radius of curvature of the ventral cantle region being greater than the radius of curvature of the dorsal cantle region.

(72) Embodiment 2. The knob of Embodiment 1 wherein a ratio of the radius of curvature of the ventral cantle region to the radius of curvature of the dorsal cantle region is at least 2:1, respectively.

(73) Embodiment 3. The knob of Embodiment 1 wherein a ratio of the radius of curvature of the ventral cantle region to the radius of curvature of the dorsal cantle region is at least 3:1, respectively.

(74) Embodiment 4. The knob of Embodiment 1 wherein a ratio of the radius of curvature of the ventral cantle region to the radius of curvature of the dorsal cantle region is at least 5:1, respectively.

(75) Embodiment 5. The knob of any of Embodiments 1-4 wherein a ratio of the radius of curvature of the ventral cantle region to the radius of curvature of the dorsal cantle region is less than 20:1.

(76) Embodiment 6. The knob of any of Embodiments 1-4 wherein a ratio of the radius of curvature of the ventral cantle region to the radius of curvature of the dorsal cantle region is less than 15:1, respectively.

(77) Embodiment 7. The knob of any of Embodiments 1-4 wherein a ratio of the radius of curvature of the ventral cantle region to the radius of curvature of the dorsal cantle region is less than 10:1, respectively.

(78) Embodiment 8. The knob of any of Embodiments 1-7 wherein the imaginary sagittal plane bisects each of the dorsal and the ventral cantle regions into symmetrical halves, respectively.

(79) Embodiment 9. A knob adapted for insertion into the hollow end of a sports stick, the knob comprising a central longitudinal axis, a tang for insertion into the hollow end of the sports stick, a grip adapted for being grasped by the hand of an athlete, and a step between the tang and the grip adapted for abutting the end surface of the hollow end of the sports stick when the tang is inserted therein, the grip comprising a grip end distal to the tang, a dorsal cantle region and a ventral cantle region, the dorsal and ventral cantle regions being between the tang and the grip end and on opposing sides of an imaginary coronal plane containing the central longitudinal axis and bisected by an imaginary sagittal plane that contains the central longitudinal axis and is orthogonal to the imaginary coronal plane, the dorsal and ventral cantle regions each providing a curved support surface for the hand of the athlete when the athlete is gripping the sports stick, wherein the dorsal cantle region and ventral cantle region are asymmetric relative to each other about the coronal plane and the sagittal plane bisects each of the ventral and the dorsal cantle regions into symmetrical halves, respectively.

(80) Embodiment 10. The knob of any of Embodiments 1-9 wherein the ventral cantle region smoothly transitions about the central longitudinal axis to the dorsal cantle region.

(81) Embodiment 11. The knob of any of Embodiments 1-10 wherein the grip end has a circumference that is at least 110% of the circumference of the neck.

(82) Embodiment 12. The knob of any of Embodiments 1-10 wherein the grip end has a circumference that is at least 150% of the circumference of the neck.

(83) Embodiment 13. The knob of any of Embodiments 1-10 wherein the grip end has a circumference that is at least 200% of the circumference of the neck.

(84) Embodiment 14. The knob of any of Embodiments 1-10 wherein the grip end has a circumference that is at least 300% of the circumference of the neck.

(85) Embodiment 15. The knob of any of Embodiments 1-14 wherein the tang has a length measured along the central longitudinal axis of about 2 to about 12 inches.

(86) Embodiment 16. The knob of any of Embodiments 1-15 wherein the tang has an end that is beveled at an angle of about 30° to 60° from the longitudinal sides of the tang and toward the longitudinal central axis to allow for easier initial guided insertion of the tang into the hollow end of the stick.

(87) Embodiment 17. The knob of any of Embodiments 1-16 wherein the grip has a length, as measured along central longitudinal axis 1.2, that is about 5 to about 95% of the length of the knob and the tang has a complementary length, as measured along the central longitudinal axis, that is about 95 to about 5% of the length of the knob.

(88) Embodiment 18. The knob of any of Embodiments 1-16 wherein the grip has a length, as measured along central longitudinal axis 1.2, that is about 15 to about 85% of the length of the knob and the tang has a complementary length, as measured along the central longitudinal axis, that is about 85 to about 15% of the length of the knob.

(89) Embodiment 19. The knob of any of Embodiments 1-16 wherein the grip has a length, as measured along central longitudinal axis 1.2, that is about 25 to about 75% of the length of the knob and the tang has a complementary length, as measured along the central longitudinal axis, that is about 75 to about 25% of the length of the knob.

(90) Embodiment 20. The knob of any of Embodiments 1-16 wherein the grip has a length, as measured along central longitudinal axis 1.2, that is about 35 to about 65% of the length of the knob and the tang has a complementary length, as measured along the central longitudinal axis, that is about 65 to about 35% of the length of the knob.

(91) Embodiment 21. The knob of any of Embodiments 1-16 wherein the grip has a length, as measured along central longitudinal axis 1.2, that is about 40 to about 60% of the length of the knob and the tang has a complementary length, as measured along the central longitudinal axis, that is about 60 to about 40% of the length of the knob.

(92) Embodiment 22. The knob of any of Embodiments 1-21 wherein the grip comprises a neck between the flange and the tang.

(93) Embodiment 23. The knob of Embodiment 22 wherein the neck has a length measured along the central longitudinal axis of at least about 0.25 inches.

(94) Embodiment 24. The knob of Embodiment 22 wherein the neck has a length measured along the central longitudinal axis in the range of about 0.25 to about 4 inches.

(95) Embodiment 25. The knob of Embodiment 22 wherein the neck has a length measured along the central longitudinal axis in the range of about 1 to about 4 inches.

(96) Embodiment 26. The knob of Embodiment 22 wherein the neck has a length measured along the central longitudinal axis in the range of about 1 to about 2 inches.

(97) Embodiment 27. The knob of any of Embodiments 1-26 wherein the knob comprises a ceramic, metal, polymer, composite, wood or a composite or laminate thereof.

(98) Embodiment 28. The knob of any of Embodiments 1-26 wherein the knob comprises a ceramic, metal, polymer, composite, or a composite or laminate thereof.

(99) Embodiment 29. A combination of a sport stick and a knob, the knob corresponding to the knob of any of Embodiments 1-28 and being inserted into a hollow end of the sport stick.

(100) Embodiment 30. The combination of Embodiment 29 wherein the sport stick is a hockey stick, a lacrosse stick, a golf club, or a baseball bat.

(101) Embodiment 31. The combination of Embodiment 29 wherein the sport stick is a hockey stick, a lacrosse stick, or a golf club.

(102) Embodiment 32. A combination of a hockey stick and a knob, the knob corresponding to the knob of any of Embodiments 1-28 and being inserted into a hollow end of the hockey stick wherein the ventral cantle region of knob is on the same side of the hockey stick as the blade of the hockey stick.

(103) Embodiment 33. A combination of a lacrosse stick and a knob, the knob corresponding to the knob of any of Embodiments 1-28 and being inserted into a hollow end of the lacrosse stick wherein the ventral cantle region of knob is on the same side of the lacrosse stick as the net-side of the head of the lacrosse stick.

(104) Embodiment 34. A combination of a golf club and a knob, the knob corresponding to the knob of any of Embodiments 1-28 and being inserted into a hollow end of the golf club wherein the ventral cantle region of knob and the head of the golf club are on the same side of the imaginary sagittal plane and the dorsal cantle region and the head of the golf club are on opposite sides of the imaginary sagittal plane.

(105) Embodiment 35. A combination of a baseball bat and a knob, the knob corresponding to the knob of any of Embodiments 1-28 and being inserted into a hollow end of the baseball bat wherein the tang and step have a circular cross-section.

(106) Embodiment 36. The combination of Embodiment 35 wherein the knob comprises a cavity at grip end of the knob sized to accommodate a motion sensor.

(107) Embodiment 37. The combination of Embodiment 35 wherein the knob comprises a cavity at grip end of the knob sized to accommodate a motion sensor, and the combination further comprises an electronic motion sensor housed in the cavity.

(108) Embodiment 38. The combination of any of Embodiments 29 to 37 wherein the knob is securely affixed to the sports stick.

(109) Embodiment 39. The combination of any of Embodiments 29 to 37 wherein the knob is securely affixed to the sports stick by welding, screws, nails, staples, glue, adhesive, heat-activated glue, or epoxy.

(110) Having described the disclosure in detail, it will be apparent that modifications and variations are possible without departing the scope of the disclosure defined in the appended claims.