Handle extension

Abstract

An end cap (100) for an athletic appliance, the end cap comprising a base portion (110) and a lateral extension (160) projecting from the base portion (110). The base portion (110) has a bottom surface (130) having a central axis (101) in its normal. A receiving cavity (170) opposite the bottom surface (130) is configured to receive a portion of an athletic appliance. The extension (160) is configured such that during a swing of the sports instrument (700) with a user's hand gripping around the sports instrument portion (700), the extension (160) contacts lateral and upper portions of a fifth proximal phalanx of the user's hand, and the hand is constrained both in lateral and longitudinal aspects while allowing a first metacarpal bone of the hand to rotate away from the central axis.

Description

SUMMARY OF THE INVENTION

[0001] The present disclosure describes an end cap for a sports implement. The end cap includes a rigid base portion and a laterally extending portion projecting from the base portion. The rigid base portion includes: a bottom surface having a central axis normal thereto; a receiving cavity opposite the bottom surface and configured to receive a portion of the sports implement; and at least one sidewall surrounding the receiving cavity and opening toward the bottom surface. The width of the rigid laterally extending portion at the maximum height of the longitudinal section is not greater than 75% of the width of the base portion.

[0002] The present disclosure also describes another end cap for a sports implement. The end cap includes a rigid base portion and a rigid laterally extending portion projecting from the rigid base portion. The rigid base portion includes: a bottom surface having a central axis normal thereto; a receiving cavity opposite the bottom surface and configured to receive a portion of the sports implement; and at least one sidewall surrounding the receiving cavity and opening toward the bottom surface. The rigid laterally extending portion includes a continuous upper surface oriented away from the bottom surface of the rigid base portion, and the continuous upper surface sweeps an arc of less than 90 degrees away from the bottom surface of the rigid base portion.

[0003] In addition, the present disclosure describes a pallet system for a sports implement. The pallet system includes a prismatic member and a laterally extending portion. The prismatic member includes a first mating housing and a second mating housing configured to accommodate and clamp a handle core of the sports implement. The prismatic member further includes: a first end configured to receive the end cap and having a center; a second end distal to the first end and having a center; a central axis defined between the center of the first end and the center of the second end; and an outer surface defined between the first end and the second end, the outer surface surrounding the central axis and opening toward the first end. The laterally extending portion projects from the outer surface near the first end and has a width at the maximum height of the longitudinal section that is not greater than 75% of the width of the prismatic member.

[0004] Further, the present disclosure describes a buttstock system for a sports implement. The buttstock system includes a prismatic member and a laterally extending portion. The prismatic member includes a first mating housing and a second mating housing, the first mating housing and the second mating housing being configured to receive and clamp a handle core of the sports implement. The prismatic member further includes: a first end configured to receive an end cap and having a center; a second end distal to the first end, the second end having a center; a central axis defined between the center of the first end and the center of the second end; and an outer surface defined between the first end and the second end, the outer surface surrounding the central axis and flaring toward the first end. The laterally extending portion projects from the outer surface near the first end and includes a continuous upper surface oriented toward the second end, the continuous upper surface sweeping an arc of less than 90 degrees toward the second end. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] The above summary of the invention and the following detailed description of the illustrative embodiments are better understood when read in conjunction with the accompanying drawings. For purposes of illustrating the present disclosure, example configurations are shown in the drawings. However, the present disclosure is not limited to the specific methods and means disclosed herein. Additionally, those of ordinary skill in the art will understand that the drawings are not drawn to scale. Where possible, the same elements are denoted by the same reference numerals.

[0006] Embodiments of the present disclosure will now be described, by way of example only, with reference to the following drawings, in which:

[0007] Figure 1 An isometric view of an example end cap is illustrated.

[0008] Figure 2 Illustrated is Figure 1 a right side view of the example end cap of

[0009] Figure 3 Illustrated is Figure 1 and Figure 2 a rear view of the example end cap of

[0010] Figure 4 Illustrated is Figures 1 to 3 a front view of the example end cap of

[0011] Figure 5 Illustrated is an example extension curvature suitable for use in association with the example end cap of Figures 1 to 4

[0012] Figures 6 to 10 Illustrated is an example extension cross-section suitable for use in association with the example end cap of Figures 1 to 5

[0013] Figure 11 Illustrated is Figures 1 to 5 an example width measurement of the example end cap of​​

[0014] Figure 12 Illustrates Figures 1 to 5 a top view of an exemplary end cap.

[0015] Figure 13 Illustrates Figures 1 to 5 an exploded view of the exemplary end cap when it can be coupled to an exemplary handle shank.

[0016] Figure 14 Illustrates an isometric view of an exemplary shank system.

[0017] Figure 15 Illustrates Figure 14 a right side view of the exemplary shank system.

[0018] Figure 16 Illustrates Figure 14 and Figure 15 a rear view of the exemplary shank system.

[0019] Figure 17 Illustrates Figures 14 to 16 a front view of the exemplary shank system.

[0020] Figure 18 Illustrates an exemplary extension curvature suitable for use in association with Figures 14 to 17 the exemplary shank system.

[0021] Figures 19 to 23 Illustrates an exemplary extension cross - section suitable for use in association with Figures 14 to 18 the exemplary shank system.

[0022] Figure 24 Illustrates Figures 14 to 18 an exemplary width measurement of the exemplary shank system.

[0023] Figure 25 Illustrates Figures 14 to 18 a top view of the exemplary shank system.

[0024] Figure 26 Illustrates Figures 14 to 18 an exploded view of the exemplary shank system when it can be coupled to an exemplary handle core.

[0025] Figure 27 Illustrates an exemplary sports equipment for use in association with an exemplary handle extension in accordance with an embodiment of the present disclosure.

[0026] Figure 28 Illustrates an additional or alternative extension for a sports equipment. Detailed Description

[0027] The following detailed description illustrates embodiments of the present disclosure and ways in which they may be implemented. Although the preferred modes of carrying out the disclosed systems, end caps, butt caps, and methods have been described, other embodiments for implementing or practicing the disclosed systems, end caps, butt caps, and methods will be apparent to those of ordinary skill in the art.

[0028] It should be noted that the terms “first,” “second,” etc. do not denote any order, quantity, or importance in this document, but rather are used to distinguish one element from another. Additionally, the terms “a” and “an” do not denote a limitation of quantity in this document, but rather denote the presence of at least one of the items being referenced.

[0029] Modern swingable sports equipment or implements, such as rackets for tennis, racquetball, squash, badminton, pickleball, and padel, and table tennis paddles, typically include a head or frame portion coupled to a rod-shaped handle portion. Executing a swing with a conventional rod-shaped handle requires the user to grip the handle with a relatively large grasping force to prevent the racket from slipping or twisting.

[0030] Known attempts to improve swing performance while allowing the user to grip the handle more loosely are aimed at supporting the user's fifth metacarpal with a wide extension. Other known attempts are aimed at locking the user's hand to the handle using an extension that bends along an arc greater than 90 degrees.

[0031] Embodiments of the present disclosure provide improvements to the handles of sports equipment. Embodiments of the present disclosure substantially eliminate or at least partially address the problems in the prior art of preventing the user's hand from slipping or twisting on the racket handle by supporting the user's fifth proximal phalanx with a relatively narrow extension. Embodiments of the present disclosure may also provide a pivot point for vertically swinging sports equipment.

[0032] Embodiments of the present disclosure may be applied to many swingable items, including but not limited to rackets for tennis, racquetball, squash, badminton, pickleball, and padel, and table tennis paddles.

[0033] Additional aspects, advantages, features, and objects of the present disclosure will become apparent from the accompanying drawings and the detailed description of illustrative embodiments interpreted in conjunction with the following appended claims. It should be appreciated that the described features are readily combinable in various combinations without departing from the scope of the present disclosure as defined by the appended claims.

[0034] The handle assemblies of modern rackets typically include an inner shaft or core, a butt cap, and a grip. In some cases, such as tennis, the racket includes a throat portion that couples the handle portion to the frame portion. The butt cap is typically positioned or applied to an outer region of the shaft. This type of handle assembly may be terminated by a cap or end cap, often also referred to as a docking cap.

[0035] Figures 1 to 5 and Figures 11 to 13 illustrates an example end cap 100 for a sports implement. The end cap 100 includes base portions (110 and 150) and a laterally extending portion 160 projecting from the base portions. The extending portion 160 includes a distal end that may be rounded relative to the base portions. The base portions have a bottom surface 130 having a longitudinal or central axis 101 normal thereto ( Figure 12 ). A receiving cavity 170 or hollow interior opposite the bottom surface 130 is configured to receive a portion of the sports implement, such as a handle shank. The receiving cavity 170 may be configured to have an internal shape that is the same as the outer surface of the portion of the sports implement to which it will be applied, and the portion of the sports implement may be a handle shank or a handle shaft.

[0036] In the example, the extending portion 160 includes an inner surface 164 generally facing the central axis 101 and an outer surface 162 opposite the inner surface. The inner surface 164 faces the central axis 101, rather than facing in the same direction as or away from the central axis 101, and may also be considered to be away from the bottom surface 130. The outer surface 162 generally faces away from the central axis 101 rather than facing the central axis 101 or in the same direction as the central axis 101, and may also be considered to generally face in the same direction as the bottom surface 130. The inner surface 164 may generally be smooth, without corners or discontinuities that may cause discomfort to the user's hand. Additionally, the inner surface 164 may be concave, while the outer surface 164 is convex ( Figure 3 and 4 ). A grip, such as tape, may be wrapped around the extending portion 160 to adjust the surface texture.

[0037] In one example, the center of curvature of the extending portion 160 is directly above the point of connection of the extending portion 160 to the base portion of the end cap 100. Similarly, a tangent line that is tangent to the outer surface 162 of the extending portion and perpendicular or transverse to the central axis 101 intersects the outer surface 162 at the point of connection of the extending portion 160 to the base portion of the end cap 100 ( Figures 3 to 5 ).

[0038] The extending portion 160 is configured such that during the waving of the sports equipment by a user's hand gripping the base portions (110 and 150), the extending portion contacts the lateral and upper portions of the fifth proximal phalanx, fourth proximal phalanx, or third proximal phalanx of the user's hand ( Figure 27 ). The hand is constrained both laterally and longitudinally while allowing the first metacarpal bone of the hand to rotate away from the central axis 101.

[0039] In the example, the extending portion 160 curves toward the central axis 101. Refer toFigure 5 The continuous inner surface 164 sweeps an arc away from the bottom surface 130 of the rigid base portion. Critically, the angular measurement subtended by the arc is less than 90 degrees. With this arrangement, the extension 160 does not impede a change in the grip on the sports implement and / or the end cap 100, does not impede the swinging of the sports implement, and does not impede the wrist flick of the sports implement, particularly when the sports implement is a racket. In the example, the extension 160 sweeps an arc such that the measurement is 60 degrees.

[0040] The end cap 100 can take any of a variety of forms suitable for use in association with a sports implement. In the example, the end cap 100 can be shaped to have eight bevels (flat portions) or elongated, generally flat regions. Eight elongated ridges are formed between the bevels along the length. In the example, the end cap 100 presents an octagonal cross-section with an opening at the base. In a further example of the use of the end cap 100 in association with a racket, the extension 160 is centered on the second, fourth, sixth, or eighth bevel, where the racket strings and / or the racket frame are aligned with the first and fifth bevels.

[0041] Figures 6 to 10 Indicates Figure 4 The various alternative cross-sections that the sectional plane A of Figure 6 The sectional view of Figure 7 reflects a non-zero width ω1 at the maximum height of the longitudinal section. Figure 8 The sectional view of Figure 9 reflects a non-zero width ω1 at the maximum height of the longitudinal section that is less than the width ω2 at the minimum height of the longitudinal section. Although not the preferred form, Figure 10 The sectional view of

[0042] Reference Figure 11 , the rigid transverse extension 160 has a critical width at the maximum height of the longitudinal cross-section that is no greater than 75% of the width δ of the base portion. At these relative dimensions, the width of the surface 164 of the transverse extension that contacts the user's fifth finger does not exceed the length of the fifth proximal phalanx. Thus, pressure on the finger joints is avoided to improve comfort and reduce the risk of injury. Additionally, this width will not impede a rapid change in the orientation of the grip on the end cap.

[0043] In another example of using the end cap 100 in association with a racket, the extension 160 rotates between 50 and 90 degrees about the central axis 101 from the plane of the racket frame. In yet another example, the extension 160 rotates approximately 70 degrees from the plane of the racket frame. In another example, the degree of rotation from the plane of the racket frame can vary based on the degree of rotation of the end cap 100 relative to the handle core.

[0044] The end cap 100 can be formed of any of a variety of rigid, lightweight materials, including but not limited to polyurethane and other polymers, nylon, and composite materials such as graphite sheets or grafil carbon fiber.

[0045] At least one protrusion 121 ( Figure 1 ) can be provided to the receiving cavity 170 and is configured to engage one of a series of notches provided on the outer surface of the handle butt. The base portion can include a first mating housing 110 and a second mating housing 150. Figure 13 Illustrated is Figures 1 to 4 an exploded view of an example end cap when it can be coupled to an example butt or butt assembly 300. A clip 200 can be provided to the first mating housing and the second mating housing 110 and 150 to fix the first mating housing and the second mating housing 110 and 150 together on the handle butt 300, wherein the ridge 121 engages with the slot 321. In the case where the housings 110 and 150 are aligned and arranged against the butt so as to cooperate through the ridge 121 and the slot 321, the clip 200 can be inserted through the slot in the bottom of the base portion until the restraint opening 210 snaps into place around the mating semi-columns (not visible) of the respective housings 110 and 150.

[0046] The end cap 100 can be coupled or attached to one or more butts in any of a variety of alternative ways in which the protrusions of the receiving cavity 170 engage with slots on the one or more butts. In another example, the end cap 100 and the one or more butts can be provided with notches or holes for engaging separate removable protrusions or plugs. In another example, the base portion can further include one or more resilient arm members or protrusions extending from the edge of the receiving cavity 170, the one or more resilient arm members or protrusions having abutment surfaces configured to engage one or more slot perforations of the handle butt. In this example, the resilient arms clamp the end cap to the handle butt. In another example, the cooperating portions are reversed such that the slots are provided on / in the end cap and the arms / protrusions are provided to the handle butt. In another example, the end cap can be coupled to the handle butt by bolts passing through one or more holes that traverse the base portion transversely to the central axis 101.

[0047] Although Figures 1 to 5 and Figures 11 to 13Reflects the splitting plane 190 of end cap halves 110 and 150 on the fourth and eighth inclined planes, and is spaced from the extension 160 by one inclined plane, but the end cap halves 110 and 150 can split along any inclined plane, where the split is spaced more or fewer inclined planes from the extension 160. In yet another example, the splitting plane 190 can be between two edges of the end cap 100. In another example, the end cap 100 can be divided into more than two pieces.

[0048] Figures 14 to 17 Illustrates an example handle system 400 configured to be positioned on the shaft of a sports implement. The handle system 400 includes a prismatic member and a transverse extension 460. The prismatic member is configured to receive and grip the handle core, hairpin structure, or shaft of a sports implement. The prismatic member includes a first end 431 having a center, a distal second end 435 having a center, and a central axis 401 defined between the center of the first end and the center of the second end. The outer surface defined between the first end and the second end surrounds the central axis 401. The first end 431 is configured to receive an end cap.

[0049] The extension 460 is coupled to the prismatic member at a base and includes a terminus distal to the base. The terminus can be rounded. The extension 460 projects from the outer surface near the first end 431 and is configured such that during the swinging of the sports implement by a user's hand gripping around the prismatic member, the extension contacts the hand on the lateral and upper portions of the fifth, fourth, or third proximal phalanges of the hand. The hand is constrained both laterally and longitudinally while allowing its first metacarpal to rotate away from the central axis 401.

[0050] In an example, the extension 460 can also include an inner surface 464 that generally faces the second end 435 and / or the central axis 401. The outer surface 462 opposite the inner surface 464 generally faces away from the second end 435 and / or the central axis 401. The inner surface 464 can generally be smooth, without corners or discontinuities that could cause discomfort to the user's hand. In another example, the extension 460 can have a concave surface 464 that faces the central axis 401.

[0051] In an example, the center of curvature of the extension 460 is located directly above the point of connection of the extension 460 to one of the two half - shells 410, 450. Similarly, the tangent to the outer surface 462 of the extension that is tangential and perpendicular or transverse to the central axis 401 intersects the outer surface 462 at the point of connection of the extension 460 to the half - shell 410 or the half - shell 450 ( Figure 16 and Figure 17 ).

[0052] In an example, the extension portion 460 is bent towards the central axis 401. In another example, the extension portion 460 is bent from the first end portion 431 towards the second end portion 435.

[0053] Reference Figure 18 , the continuous inner surface 464 of the extension portion 460 sweeps an arc towards the second end portion 435. Critically, the measured value of the angle β subtended by this arc is less than 90 degrees. With this arrangement, the extension portion 460 does not impede the change of grip on the sports implement and / or the buttstock and / or the buttstock system and / or the prismatic member. In addition, the extension portion 460 does not impede the swinging of the sports implement and does not impede the wrist flick of the sports implement, especially when the sports implement is a racket. In an example, the extension portion 460 sweeps an arc with a measured value less than 60 degrees.

[0054] Figures 19 to 23 Denote Figure 17 The various alternative cross-sections that the plane B can produce. Similar to the above cross-sections discussed in reference Figures 6 to 10 , Figure 19 The cross-sectional view of Figure 20 reflects a first non-zero width ω1 at the maximum height of the longitudinal cross-section, Figure 21 The cross-sectional view of Figure 22 reflects a zero width ω1 at the maximum height of the longitudinal cross-section, and Figure 23 The cross-sectional view of

[0055] Reference Figure 24 , the rigid transverse extension portion 460 has a critical width not greater than 75% of the width ε of the prismatic member at the maximum height of the longitudinal cross-section. At these relative dimensions, the width of the surface of the transverse extension portion in contact with the user's fifth finger does not exceed the length of the fifth proximal phalanx. Thus, the pressure on the finger joints is avoided to improve comfort and reduce the risk of injury. In addition, this width will not impede the rapid change of the grip orientation on the sports implement and / or the buttstock and / or the buttstock system and / or the prismatic member.

[0056] In an example of using the butt system 400 in association with a racket, the extension 460 is centered on the second, fourth, sixth, or eighth bevel, where the racket frame is aligned with the first and fifth bevels. In another example where the butt system 400 is used in association with a racket, the extension 460 rotates from the plane of the racket frame by an angle between 50 degrees and 90 degrees about the central axis 401. In yet another example, the extension 460 rotates approximately 70 degrees from the plane of the racket frame. In another example, the degree of rotation from the plane of the racket frame can vary based on the degree of rotation of the butt system 400 relative to the handle core.

[0057] The butt system 400 can be non - removably attached to the shaft during manufacturing, or the prismatic member can be provided as two half - shells 410 and 450, which are configured to be attached to the shaft by an adhesive or other means.

[0058] Figure 25 Illustrated is Figures 14 to 18 an exploded view of an example butt system when it can be coupled to an example handle core. The first mating shell 410 and the second mating shell 450 can include teeth 421 that engage with teeth 621 provided on the outer surface of a handle core 600 of a sports implement. Wrapping a grip (not shown) around the first shell 410 and the second shell 450 can secure it to the handle core of the sports implement. The grip can have different degrees of stickiness.

[0059] The butt system 400 can be formed from any of a variety of rigid, lightweight materials, including but not limited to polyurethane and other polymers, nylon, and composite materials such as graphite sheets or grafil carbon fiber. The butt system 400 can take any of a variety of forms suitable for use with a sports implement and / or handle core. In an example, the butt system 400 can be shaped to have eight bevels adjacent to each other. Eight elongated ridges are formed between the bevels along the length. In an example, the butt system 400 presents an octagonal cross - section.

[0060] Although Figures 14 to 18 and Figures 24 to 26 reflect that the split plane 490 of the half - shells 410 and 450 is on the fourth and eighth bevels and is spaced from the extension 460 by one bevel, the half - shells 410 and 450 can split along any bevel, where the split is spaced from the extension 460 by more or fewer bevels. In yet another example, the split plane 490 can be between two edges of the butt 400. In another example, the system 400 can include more than two shells.

[0061] Figures 1 to 26 Illustrated is a non - limiting example way of providing an extension to a sports equipment handle. The present disclosure contemplates other ways of providing an extension to a handle.

[0062] In another example, the lateral handle system includes a thin-walled annular member that includes a bottom and a top and has a height between the bottom and the top. The annular member includes a central opening. A centrally oriented central axis passing through the central opening extends in the height direction. A lateral extension projects from the thin-walled annular member and curves from the bottom toward the top.

[0063] The thin-walled annular member is configured to partially surround a handle shank that encloses a handle core, shaft, or hairpin structure of a sports implement. The thin-walled annular member can also be configured to surround a handle end cap of the sports implement, which together with the handle shank encloses the handle core, shaft, or hairpin structure.

[0064] The annular member can be formed by a first mating housing and a second mating housing, which can be semi-circular. Through holes in each of the first mating housing and the second mating housing facilitate coupling the assembled first mating housing and the second mating housing to form the annular member. The centers of the through holes are aligned along an axis transverse to the central axis and are configured to receive fasteners for coupling the first mating housing and the second mating housing around the handle shank. In one example, the fastener is a snap bolt or a cross pin.

[0065] Additionally / alternatively, the annular member can include a concave inner surface that is configured to engage a convex outer surface of the handle shank or end cap. The annular member can be formed of a resilient, flexible material such that it can slide over the convex surface of the handle shank or end cap where it will grip the handle shank or end cap together with the mating concave surface. In one example, the resilient ring is formed of rubber.

[0066] As in the above embodiments, the extension contacts the lateral and upper portions of the fifth proximal phalanx, fourth proximal phalanx, or third proximal phalanx of the user's hand and constrains the hand in the lateral and longitudinal aspects while allowing the first metacarpal bone of the hand to rotate away from the central axis. The extension can take any of a variety of sizes and / or shapes suitable for constraining the hand of a sports equipment user, including but not limited to those described above.

[0067] In yet another example, a sports implement shaft having an outer surface that extends between a first end and a second end about a central axis further includes a laterally oriented socket formed in the outer surface. The lateral extension has a plug that is configured to be received in the laterally oriented socket to secure the extension to the sports implement shaft. One or more shanks and / or end caps can be provided with an opening, passage, or notch to accommodate the extension. In the case where one or more shanks are fixed around the shaft, the extension projects through the one or more shanks to contact the user's hand. Similarly, in the case where an end cap is fixed to one or more shanks, the extension projects through the end cap.

[0068] As with the above-described embodiments, the extension contacts the lateral and upper portions of the fifth, fourth, or third proximal phalanx of the user's hand and constrains the hand in the transverse and longitudinal directions while allowing the first metacarpal bone of the hand to rotate away from the central axis. The extension can be of any of a variety of sizes and / or shapes suitable for constraining the hand of a user of a sports implement, including but not limited to those described above.

[0069] In yet another example, the extension can be part of a sports implement formed as a single piece and additionally includes one or more of a main handle, a sports implement shaft, and a sports implement racket frame.

[0070] Figure 27 An example sports implement 700 associated with an example extension 160 in accordance with an embodiment of the present disclosure is illustrated. In the case where the user's hand grasps the handle butt, the example extension 160 contacts the lateral and upper portions of the fifth proximal phalanx of the hand. The hand is constrained in both the transverse direction and the longitudinal direction while allowing the first metacarpal bone of the hand to rotate away from the central axis.

[0071] Figure 28 An additional or alternative lateral extension for a sports implement 800 is illustrated. The extension 860 includes branches that produce a first extension 862 and a second extension 868 that rotate relative to each other about the central axis and / or about a perimeter surrounding the bottom surface. The extension 860 can be adapted to be used in association with at least the disclosed end caps and handle butts, for example, as an alternative to the extension 160 or the extension 460.

[0072] Embodiments of the present disclosure are amenable to a variety of purposes, including but not limited to enabling a user to prevent their hand from slipping or twisting on a racket handle while reducing the amount of grip force required. The grip of rackets for tennis, racquetball, squash, badminton, pickleball, and padel, as well as table tennis paddles, among other sports implements, can be improved.

[0073] When a group of substituents is disclosed herein, it should be understood that all individual members of the group and all subgroups are disclosed individually. When groupings are used herein, all individual members of the group and all individual members of all possible combinations and subcombinations of the group are intended to be individually included in the present disclosure.

[0074] Modifications to the embodiments of the present disclosure described above are possible without departing from the scope of the present disclosure as defined by the appended claims. Expressions such as "comprising", "including", "incorporating", "consisting of", "having", "being", which are used to describe and claim the disclosed features, are to be interpreted in a non-exclusive manner, i.e., it is allowed that there are also articles, components or elements that are not explicitly described. References to the singular should also be construed as referring to the plural.

Claims

1. An end cap for a sports implement, the end cap comprising: A rigid base portion, the rigid base portion comprising: A bottom surface having a central axis normal thereto; A receiving cavity opposite the bottom surface, the receiving cavity being configured to receive a portion of the sports implement; and At least one sidewall surrounding the receiving cavity, the at least one sidewall flaring towards the bottom surface; and A rigid lateral extension protruding from the rigid base portion, the width of the lateral extension at the maximum height of the longitudinal section being no greater than 75% of the width of the rigid base portion.

2. The end cap according to claim 1, wherein, The lateral extension is curved towards the central axis.

3. The end cap according to claim 1 or 2, wherein The lateral extension includes a continuous upper surface oriented away from the bottom surface of the rigid base portion, the continuous upper surface sweeping an arc of less than 90 degrees away from the bottom surface of the rigid base portion.

4. The end cap according to any one of claims 1 to 3, wherein, The lateral extension further includes a generally smooth inner surface generally facing the central axis.

5. The end cap according to any one of claims 1 to 4, wherein, The lateral extension has a concave surface facing the central axis.

6. The end cap according to any one of claims 1 to 5, wherein, The rigid base portion is composed of a first mating housing and a second mating housing.

7. An end cap for a sports implement, the end cap comprising: A rigid base portion, the rigid base portion comprising: A bottom surface having a central axis normal thereto; A receiving cavity opposite the bottom surface, the receiving cavity being configured to receive a portion of the sports implement; and At least one sidewall surrounding the receiving cavity, the at least one sidewall flaring towards the bottom surface; and A rigid lateral extension protruding from the rigid base portion, the lateral extension including a continuous inner surface oriented away from the bottom surface of the rigid base portion, the continuous inner surface sweeping an arc of less than 90 degrees away from the bottom surface of the rigid base portion.

8. The end cap according to claim 7, wherein, The lateral extension is curved towards the central axis.

9. The end cap according to claim 7 or 8, wherein, The lateral extension further includes a generally smooth inner surface generally facing the central axis.

10. The end cap according to any one of claims 7-9, wherein, The lateral extension has a concave surface facing the central axis.

11. The end cap according to any one of claims 7 to 10, wherein, The rigid base portion is composed of a first mating housing and a second mating housing.

12. The end cap according to any one of claims 7 to 11, wherein, The width of the rigid lateral extension at the maximum height of the longitudinal section is no greater than 75% of the width of the rigid base portion.

13. A handleholder system for a sports implement, comprising: A prismatic member, the prismatic member including a first mating housing and a second mating housing, the first mating housing and the second mating housing being configured to accommodate and clamp a handle core of the sports implement, the prismatic member having: A first end with a center, the first end being configured to receive an end cap; A second end with a center, the second end being distal to the first end; A central axis defined between the center of the first end and the center of the second end; and An outer surface defined between the first end and the second end, the outer surface surrounding the central axis and flaring towards the first end; and A lateral extension protruding from the outer surface near the first end portion, the width of the lateral extension at the maximum height of the longitudinal section being no greater than 75% of the width of the prismatic member.

14. The buttstock system according to claim 13, further comprising teeth provided on the inner surface opposite to the outer surface and configured to engage with teeth provided on the outer surface of the handle core of the sports implement.

15. The shank support system according to claim 13 or 14, wherein, The lateral extension is bent towards the central axis.

16. The shank support system according to any one of claims 13 to 15, wherein, The lateral extension includes a continuous upper surface oriented towards the first mating housing and the second mating housing, the continuous upper surface sweeping an arc of less than 90 degrees away from the first end portion.

17. The shank support system according to any one of claims 13 to 16, wherein, The lateral extension further includes a generally smooth inner surface that generally faces the central axis.

18. A buttstock system for a sports implement, the buttstock system comprising: A prismatic member including a first mating housing and a second mating housing configured to receive and clamp the handle core of the sports implement, the prismatic member having: A first end portion having a center and configured to receive an end cap; A second end portion having a center and being distal to the first end portion; A central axis defined between the center of the first end portion and the center of the second end portion; An outer surface defined between the first end portion and the second end portion, the outer surface surrounding the central axis and flaring towards the first end portion; and A lateral extension protruding from the outer surface near the first end portion, the lateral extension including a continuous inner surface oriented towards the second end portion, the continuous inner surface sweeping an arc of less than 90 degrees towards the second end portion.

19. The buttstock system according to claim 18, the buttstock system further comprising teeth provided on the inner surface opposite to the outer surface and configured to engage with teeth provided on the outer surface of the handle core of the sports implement.

20. The shank support system according to claim 18 or 19, wherein, The lateral extension is bent towards the central axis.

21. The shank support system according to any one of claims 18 to 20, wherein, The lateral extension further includes a generally smooth inner surface that generally faces the central axis.

22. The shank support system according to any one of claims 18 to 21, wherein, The rigid lateral extension has a width at the maximum height of the longitudinal section that is no greater than 75% of the width of the prismatic member.

23. An end cap system for a sports implement, the end cap system comprising: A base portion, the base portion including: A bottom surface having a central axis normal thereto; A receiving cavity opposite to the bottom surface and configured to receive a portion of the sports implement; and A lateral extension protruding from the base portion and configured such that: During the swinging of the sports implement by a user's hand grasping around the sports implement portion, the lateral extension contacts the outer lateral portion and the upper portion of the fifth metacarpal bone of the hand; and The hand is constrained both laterally and longitudinally while allowing the first metacarpal bone of the hand to rotate away from the central axis.

24. The end cap according to claim 23, wherein, The extension portion is further configured such that during the swinging of the sports implement by a user's hand grasping around the handle shank, the lateral extension portion contacts the lateral and upper portions of the fifth proximal phalanx, the fourth proximal phalanx, or the third proximal phalanx of the hand.

25. The end cap according to claim 23 or 24, wherein, The lateral extension portion curves towards the central axis.

26. The end cap according to any one of claims 23 to 25, wherein, The lateral extension portion sweeps an arc of less than 90 degrees towards the first end.

27. The end cap according to any one of claims 23 to 26, wherein, The lateral extension portion further includes a generally smooth inner surface that generally faces the central axis.

28. The end cap according to any one of claims 23 to 27, wherein The lateral extension portion has a concave surface facing the central axis.

29. The end cap according to any one of claims 23 to 28, wherein, The lateral extension portion further includes branches.

30. The end cap according to any one of claims 23 to 29, wherein, The lateral extension portion further includes a first extension portion and a second extension portion that rotate relative to each other about the central axis.

31. The end cap according to any one of claims 23 to 30, wherein, The base portion consists of a first mating housing and a second mating housing.

32. The end cap according to claim 31, further comprising a retaining clip for securing the first mating housing and the second mating housing around the handle shank.

33. The end cap according to any one of claims 23 to 33, further comprising teeth that are provided in the receiving cavity and are configured to engage with teeth provided on an outer surface of a part of the sports implement.

34. A handle shank system for a sports implement, the handle shank system comprising: A prismatic member configured to receive and clamp a handle core of the sports implement, the prismatic member having: A first end with a center configured to receive an end cap; A second end with a center, the second end being distal to the first end; A central axis defined between the center of the first end and the center of the second end; An outer surface defined between the first end and the second end and surrounding the central axis; And A lateral extension portion that projects from the outer surface near the first end and is configured such that: During the swinging of the sports implement by a user's hand grasping around the prismatic member, the lateral extension portion contacts the hand on the lateral and upper portions of the fifth proximal phalanx, the fourth proximal phalanx, or the third proximal phalanx of the hand; And The hand is constrained both laterally and longitudinally while allowing the first metacarpal of the hand to rotate away from the central axis.

35. The shank support system according to claim 34, wherein, The lateral extension portion is further configured such that during the swinging of the sports implement by a hand grasping around the prismatic member, the lateral extension portion contacts the lateral and upper portions of the fifth metacarpal of the hand.

36. The shank support system according to claim 34 or 35, wherein, The prismatic member consists of a first mating housing and a second mating housing.

37. The handle shank system according to claim 36, further comprising teeth that are provided on an inner surface opposite to the outer surface and are configured to engage with teeth provided on an outer surface of the handle core of the sports implement.

38. The shank support system according to any one of claims 34 to 37, wherein, The lateral extension portion curves towards the central axis.

39. The shank support system according to any one of claims 34 to 38, wherein, The lateral extension portion further includes branches.

40. The shank support system according to any one of claims 34 to 39, wherein, The lateral extension portion further includes a first extension portion and a second extension portion that rotate relative to each other about the central axis.

41. The shank support system according to any one of claims 34 to 40, wherein, The lateral extension portion sweeps an arc of less than 90 degrees towards the second end.

42. The shank support system according to any one of claims 34 to 41, wherein The laterally extending portion further includes a generally smooth inner surface that generally faces the central axis.

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