Pickleball paddle with intermediate layer structure

Abstract

The present application relates to a paddle for a pickleball having a mid-layer structure. The present teachings can relate to a game paddle such as a paddle for a pickleball. In particular, the present teachings can include a paddle having a mid-layer structure, e.g., a paddle including a frame, a plurality of core portions, and a mid-layer disposed between the core portions. A paddle or kit according to the present teachings can additionally or alternatively include removable and replaceable core portions, connecting members, and / or a playing surface that can be coupled to the core portions or other portions. The mid-layer structure of the present teachings can provide a means for customizing performance characteristics of the paddle, e.g., by the configuration of the mid-layer and / or by the interchangeability provided by the mid-layer. This can be particularly useful for adjusting the stiffness, weight distribution, and overall feel of the paddle, as well as enabling easy replacement or modification of individual components to extend the life of the paddle or adapt the properties of the paddle to different playing styles or conditions.

Description

Cross-references to related applications

[0001] This application claims priority to the following patent applications: U.S. Provisional Patent Application No. 63 / 760,420, filed February 19, 2025, and U.S. Provisional Patent Application No. 63 / 767,270, filed March 5, 2025. Each of the above applications is incorporated herein by reference in its entirety. Technical Field

[0002] This disclosure generally relates to competition rackets (e.g., peak rackets) and methods for manufacturing and using rackets. background

[0003] Rackets have been used for racket-based sports for a long time. The term "racket" generally refers to equipment whose striking surface does not include strings (for example, a tennis racket would not be considered a racket). Rackets are used to play games such as pickleball, paddleball, table tennis, and padel tennis. In particular, pickleball is a racket-based sport that typically combines elements of tennis, badminton, and table tennis. The sport is played on a court similar in size to a badminton court, with a net separating the two sides. The game uses a perforated plastic ball and a solid racket made of materials such as wood, graphite, and / or composite materials. Generally, players hit the ball over the net with their rackets, aiming to land the ball within the boundary on the opposite side of the court. As the sport has evolved, so has the equipment used by players, with racket design becoming a particular area of ​​focus.

[0004] A racket's construction typically comprises a core material sandwiched between two surface layers, usually with a frame surrounding its perimeter. The materials and design of these components affect various aspects of racket performance, including power, control, and feel. Players often seek rackets that balance these characteristics to suit their individual playing style and preferences. Therefore, there is a sustained interest in racket designs that offer enhanced performance while adhering to the rules and regulations governing equipment in competitive play.

[0005] There is still a need for Peak rackets with improved performance characteristics such as power, control, and feel. Invention Overview

[0006] This instruction may relate to competition rackets such as peakers. Specifically, this instruction may include rackets with a mid-layer structure, for example, a racket comprising a frame, multiple core sections, and a mid-layer disposed between the core sections. Rackets or kits according to this instruction may additionally or alternatively include removable and replaceable core sections, connecting members, and / or playing surfaces that can be attached to the core sections or other parts of the racket. The mid-layer structure of this instruction can provide means for customizing the performance characteristics of the racket, for example, through the configuration of the mid-layer itself and / or through the interchangeability of other racket components achieved by providing the mid-layer. This is particularly useful for adjusting the racket's stiffness, weight distribution, energy transfer characteristics, vibration damping, and overall feel, as well as enabling easy replacement or modification of individual components to extend the racket's lifespan or adapt the racket's properties to different playing styles or conditions.

[0007] In an example, the racket disclosed herein includes: a frame; a first core portion located on the front side of the racket, the first core portion being at least partially defined by the frame; a second core portion located on the rear side of the racket opposite to the front side, the second core portion being at least partially defined by the frame; and an intermediate layer disposed between the first core portion and the second core portion, the intermediate layer having one or more properties different from each of the first core portion and the second core portion.

[0008] Implementations of this example aspect, or any other example aspect described in this overview section or elsewhere herein, may include one or more of the following features: The interlayer may extend from the frame. The interlayer may be made of one or more materials the same as the frame. The frame may define the entire perimeter of the racket, and the interlayer may be present throughout the area defined by the frame. The interlayer may be bonded to the frame. The interlayer may be present within the head portion of the racket. The interlayer may be present throughout the entire head portion of the racket. The interlayer may be confined to the head portion of the racket. The interlayer may be present within the handle portion of the racket. The interlayer may be present throughout the entire handle portion of the racket. The interlayer may be a continuous sheet of material. The interlayer may include one or more voids. The interlayer may include a mesh material. The interlayer may include a material patterned to define one or more voids. The interlayer may be thinner than each of the first core portion and the second core portion. The interlayer may be more rigid than each of the first core portion and the second core portion. The interlayer may be more flexible than each of the first core portion and the second core portion. The interlayer may include carbon fiber. The intermediate layer may include at least one of rubber, plastic, and thread. The intermediate layer may include multiple threads under tension. The multiple threads may extend from the frame. The intermediate layer may include filler within an inner portion of the intermediate layer. The intermediate layer may include a honeycomb or mesh structure within the inner portion of the intermediate layer. The intermediate layer may include variations in thickness. A gap may be formed between at least one of: (i) a first core portion and the frame, and (ii) a second core portion and the frame. A connecting member may be disposed within at least a portion of the gap. The gap may be formed along each of the front and rear sides of the racket, and the first connecting member may be disposed in the gap on the front side of the racket, and the second connecting member may be disposed in the gap on the rear side of the racket. The first and second connecting members may be substantially identical. The first and second connecting members may be different. The gap may extend through each of the first and second core portions. Filler may be disposed within at least a portion of the gap. One or more of the first and second core portions may be removable and replaceable. One or more of the first and second core portions may be removably and replaceably coupled to the intermediate layer. The connection between one or more of the first and second core portions and the intermediate layer can be provided by one or more of tape, adhesive, and magnetic attraction. The connection between one or more of the first and second core portions and the intermediate layer can be provided by mechanical means. One or more of the first and second core portions can be structurally configured as the outer surface of the playing surface for the racket. The intermediate layer can provide a predetermined stiffness to the racket, which allows one or more of the first and second core portions to serve as the playing surface for the racket.

[0009] In one example, a method of forming the racket disclosed herein includes: forming a racket structure comprising: a frame; an intermediate layer defined by the frame and disposed at least partially along a plane intersecting opposite sides of the frame, the intermediate layer defining a first engagement surface along a front side of the racket structure and a second engagement surface along a rear side of the racket structure; a first cavity along the front side of the racket structure, the first cavity being at least partially defined by the frame and the first engagement surface of the intermediate layer; and a second cavity along the rear side of the racket structure, the second cavity being at least partially defined by the frame and the second engagement surface of the intermediate layer; inserting a first core portion into the first cavity and engaging the first core portion to the first engagement surface of the intermediate layer; and inserting a second core portion into the second cavity and engaging the second core portion to the second engagement surface of the intermediate layer.

[0010] Implementations of this example aspect, or any other example aspect described in this overview section or elsewhere herein, may include one or more of the following features. The method may include coupling a match surface to one or more of a first core portion and a second core portion. The method may include inserting a connecting member into a gap formed between at least one of the following: a first core portion and a frame, and a second core portion and a frame. The method may include inserting filler into one or more gaps formed between at least one of the following: the first core portion and the frame, and the second core portion and the frame.

[0011] In one example, a kit for the racket disclosed herein includes: a racket structure comprising a frame and an intermediate layer defined by the frame, the intermediate layer being disposed along a plane intersecting opposite sides of the frame, and the intermediate layer being thinner than the frame such that the intermediate layer defines a first cavity and a second cavity, the first cavity having a first engagement surface along a front side of the racket structure, and the second cavity having a second engagement surface along a rear side of the racket structure; a first core portion capable of being inserted into at least the first cavity and capable of engaging with the first engagement surface; and a second core portion capable of being inserted into at least the second cavity and capable of engaging with the second engagement surface.

[0012] Implementations of this example aspect, or any other example aspect described in this overview section or elsewhere herein, may include one or more of the following features: The first core portion and the second core portion may be substantially identical. The first core portion and the second core portion may be different. One or more of the first core portion and the second core portion may define a playing surface for the racket. The kit may include one or more playing surfaces. One or more playing surfaces may be connectable to at least one of the first core portion and the second core portion. One or more playing surfaces may be removably and replaceably connected to at least one of the first core portion and the second core portion. The first cavity and the second cavity may be entirely disposed within the head portion of the racket structure. The frame may surround the head portion of the racket structure.

[0013] These and other features, aspects, and advantages of this teaching will be better understood by referring to the following description, examples, and appended claims. Brief description of the attached diagram

[0014] As illustrated in the accompanying drawings, the foregoing and other objects, features, and advantages of the devices, systems, and methods described herein will become apparent from the following description of specific embodiments thereof. The drawings are not necessarily drawn to scale, but rather focus on illustrating the principles of the devices, systems, and methods described herein. In the drawings, the same reference numerals generally identify corresponding elements.

[0015] Figure 1 A pickle is shown based on a representative example.

[0016] Figure 2 The following is illustrated based on a representative example. Figure 1 A breakdown diagram of a peak racket.

[0017] Figure 3A The following is illustrated based on a representative example. Figure 1 A flat diagram of a peak racket.

[0018] Figure 3B The example shown is along the representative example. Figure 3A The cross-sectional view of line 3B-3B.

[0019] Figure 3C The following is illustrated based on a representative example. Figure 3B A magnified detail of the 3C area.

[0020] Figure 4 The core of a racket with multiple core sections is shown according to a representative example.

[0021] Figure 5 A pickle is shown based on a representative example.

[0022] Figure 6 The following is illustrated based on a representative example. Figure 5 A breakdown diagram of a peak racket.

[0023] Figure 7 A pickle is shown based on a representative example.

[0024] Figure 8A The following is illustrated based on a representative example. Figure 7 A view of a portion of a peak racket.

[0025] Figure 8B The following is illustrated based on a representative example. Figure 7 A view of another part of the pickle racket.

[0026] Figure 9A The following is illustrated based on a representative example. Figure 7 A flat diagram of a peak racket.

[0027] Figure 9B The example shown is along the representative example. Figure 9A Cross-sectional view of line 9B-9B.

[0028] Figure 9C The following is illustrated based on a representative example. Figure 9B A magnified detail of area 9C.

[0029] Figure 10 A pickle is shown based on a representative example.

[0030] Figure 11 The example shown is without edge protection. Figure 10 The Peak racket.

[0031] Figure 12 The following is illustrated based on a representative example. Figure 11 A magnified side view of area 12 of the pickle.

[0032] Figure 13A The following is illustrated based on a representative example. Figure 10 A flat diagram of a peak racket.

[0033] Figure 13B The example shown is along the representative example. Figure 13A A cross-sectional view of line 13B-13B.

[0034] Figure 13C The following is illustrated based on a representative example. Figure 13B A magnified detail of region 13C.

[0035] Figure 14 A flowchart illustrating a method for forming a picket racket, based on a representative example, is shown. Detailed description

[0036] Embodiments will now be described more fully below with reference to the accompanying drawings, in which preferred embodiments are shown. However, the foregoing can be embodied in many different forms and should not be construed as limiting to the illustrated embodiments set forth herein. Rather, these illustrated embodiments are provided so that this disclosure will convey the scope to those skilled in the art.

[0037] All references cited herein are incorporated herein by reference in their entirety. Unless otherwise expressly stated or clearly apparent from the text, references to singular items should be understood to include plural items, and vice versa. Unless otherwise stated or clearly apparent from the context, grammatical conjunctions are intended to express any and all disjunctive and conjunctive combinations connecting clauses, sentences, words, etc. Therefore, the term "or" should generally be understood to mean "and / or," etc.

[0038] Unless otherwise indicated herein, the description of ranges of values ​​herein is not intended to be limiting, but rather refers individually to any and all values ​​falling within such ranges, and each individual value within such ranges is incorporated into the specification as if it were individually described herein. When used with numerical values, the terms “about,” “approximately,” etc., should be interpreted as indicating a deviation that would be understood by one of ordinary skill in the art for satisfactory operation for the intended purpose. Similarly, when used with reference to physical characteristics, approximate terms such as “about,” “approximately,” or “substantially” should be understood as a range of deviations that would be understood by one of ordinary skill in the art for satisfactory operation for the corresponding use, function, purpose, etc. Ranges of values ​​and / or numerical values ​​are provided herein only as examples and do not constitute a limitation on the scope of the described embodiments. Unless expressly stated to the contrary, where ranges of values ​​are provided, these ranges are also intended to include each value within that range as if it were individually stated. The use of any and all examples or exemplary language (“e.g.,” “such as,” etc.) provided herein is intended only to better illustrate the embodiments and does not constitute a limitation on the scope of the embodiments. No language in this specification should be construed as indicating that any unclaimed element is necessary for the practice of the embodiments.

[0039] In the following description, it should be understood that, unless explicitly stated to the contrary, terms such as “first,” “second,” “top,” “bottom,” “upper,” and “lower” are convenient words and should not be interpreted as restrictive terms.

[0040] Generally, the devices, systems, kits, and methods disclosed herein relate to rackets, such as pickle rackets. However, it should be understood that while this disclosure may emphasize the teachings in the context of pickle, these teachings can be adapted and practiced in other sports and activities, including but not limited to one or more of the following: tennis, badminton, squash, short-handled wallball, table tennis, paddle tennis, etc. Therefore, it should be understood that unless explicitly stated to the contrary or otherwise clearly apparent from the context, this teaching is intended to include similar equipment in other sports / activities besides or alternative to pickle.

[0041] Therefore, this teaching can relate to rackets (e.g., peak rackets) having an intermediate layer structure disposed between the core portion and / or other parts of the racket. More specifically, the rackets, systems, methods, and kits disclosed herein can relate to the construction of a peak racket having a frame, a first core portion and a second core portion on opposite sides of the racket, and an intermediate layer disposed between the core portions, wherein the intermediate layer has properties different from the core portions. This construction can allow for customization of the racket, for example, by changing the properties of the intermediate layer relative to the core portions, and / or by changing the components engaged with the intermediate layer. In this way, this teaching can additionally or alternatively include removable and replaceable core portions, connecting members (e.g., disposed in the gap between the core portions and the frame), and playing surfaces that can be coupled to the core portions or other structures of the racket. In this way, the racket structure provides mechanisms for adjusting the racket's stiffness, weight distribution, and overall feel, as well as enabling the easy replacement or modification of individual components to extend the racket's lifespan or adapt its properties to different playing styles or conditions. As explained in this article, this is particularly useful for optimizing racket performance, customizing racket characteristics for individual players, and improving the lifespan and versatility of Peakball rackets.

[0042] Therefore, in this teaching, a racket may include an intermediate layer structure—optionally attached to the frame and optionally filling the entire internal region of at least the head portion of the racket. In such a racket structure, the top core portion and the bottom core portion have a playing surface disposed thereon (e.g., attached to or integral with it) and may engage with the intermediate layer. That is, in some examples, the core may be a structure that includes the playing surface, for example, where the core and / or playing surface comprises polymer foam, which is possible because of the inclusion of an intermediate layer that provides the required strength and stability in such a configuration. More specifically, due to the inclusion of an intermediate layer (which may include relatively high stiffness and is a component disposed within the internal structure of the head portion of the racket), a less stiff and / or lighter core material can be advantageously utilized. The racket may also include gaps in which connecting members may be disposed, for example, within the gap between the core portion (and / or playing surface) and the frame. As described herein, the intermediate layer may be a continuous layer, but may additionally or alternatively include voids, such as the intermediate layer being a perforated structure, a mesh / grid structure, etc. As an example, the intermediate layer structure may include one or more of the following: carbon fiber layers, rubber layers, plastic layers, tensioned wires, etc., bonded to the frame.

[0043] It should be understood that, as used herein, the term "racket" or "pickball racket" generally refers to a handheld apparatus used for striking a ball in pickleball or a similar sport, typically comprising a handle portion and a head portion having one or more playing surfaces for contacting the ball. It should also be understood that, as stated above, other rackets are possible or alternatively possible when using the term "pickball racket," unless explicitly stated otherwise or otherwise clearly apparent from the context.

[0044] It should be understood that, as used herein, the term "head portion" generally refers to the wider upper section of the racket, which includes one or more main playing surfaces used for striking the ball during a match. And it should be understood that, as used herein, the term "handle portion" generally refers to the narrower lower section of the racket gripped by the player during a match, which typically extends from the head portion and provides means for controlling and manipulating the racket.

[0045] It should be understood that, as used herein, the terms "core" or "core portion" generally refer to a structural component of the racket that forms part of the impact surface (and / or has an impact surface engaged with the structural component) and / or is part of the racket's internal structure. A racket may include multiple core portions, such as a first core portion on the front side and a second core portion on the rear side, which may be at least partially defined by the frame. The core or core portion may include materials such as polypropylene, foam, aluminum, Nomex, Kevlar, and / or any other synthetic or natural material. The core may include a solid core structure and / or a honeycomb structure and / or an open-cell structure and / or a mesh structure.

[0046] It should be understood that, as used herein, the term "frame" generally refers to a structural component of the racket that provides the racket with the desired shape and / or rigidity. The frame may surround at least a portion of the racket's perimeter and may be present in one or both of the head portion or the handle portion of the racket.

[0047] It should be understood that, as used herein, the term "filler" generally refers to the material used to occupy space within the racket structure (such as within the frame and / or between other components) that can provide additional structural support, weight distribution, or other functional properties for the racket.

[0048] It should be understood that, as used herein, the term “edge protection” generally refers to a protective component applied to the outer perimeter of a pickball racket, which typically covers at least a portion of the frame to provide durability and impact resistance.

[0049] It should be understood that, as used herein, the term "intermediate layer" generally refers to structural components disposed between the core portions of the racket. The intermediate layer may have one or more properties different from the core portions, such as different materials, rigidity, and / or elasticity, and may extend from the frame or be defined directly or indirectly by the frame.

[0050] It should be understood that, as used herein, the term "playing surface" generally refers to the outer surface of a racket structurally configured to contact a ball or other projectile during play. The playing surface may be defined by one or more core portions, or it may be a separate component attached to a core portion.

[0051] It should be understood that, as used herein, the term "joining surface" generally refers to the surface of the intermediate layer that joins or connects to the core portion or another portion of the racket. The intermediate layer may have a first joining surface on the front side of the racket and a second joining surface on the rear side of the racket.

[0052] It should be understood that, as used herein, the term “connecting member” generally refers to a component disposed between other structural elements of the racket (e.g., between the core portion and the frame) that provides physical and / or functional separation between those elements, and that component may have different material properties (e.g., greater elasticity) than the elements to which it is separated.

[0053] It should be understood that the term "elasticity" as used in this article generally refers to the ability of a material to deform under stress and return to its original shape when the stress is removed, wherein, under the same applied stress, a material with greater elasticity exhibits greater deformation and recovery than a material with less elasticity.

[0054] It should be understood that, as used herein, the term "kit" generally refers to a collection of parts that can be assembled to form a complete racket. A kit may include a racket structure with a frame and middle layer, as well as separate core sections and potential additional components, such as the playing surface and / or connecting members.

[0055] It should be understood that, as used herein, the term "removable" generally refers to a component that can be separated or detached from another component or structure without damaging or permanently harming the removed component or the structure from which it was removed. It should be understood that, as used herein, the term "replaceable" generally refers to a component that, after being removed, can be replaced by another component of the same or similar type, wherein the replacement component can be attached or engaged in such a way that functionality is restored without permanently altering the receiving structure.

[0056] It should be understood that any device, system, apparatus, method, kit, etc., described herein may include one or more features described in the International Patent Application No. PCT / US2024 / 042535 (and published as WO2025 / 049122), filed on August 15, 2024, the entire contents of which are incorporated herein by reference.

[0057] Figure 1 A representative example of a pickle 100 is shown. Figure 2 The following is illustrated based on a representative example. Figure 1 A breakdown diagram of the racket size 100, and Figures 3A-3C Each is shown according to a representative example. Figure 1 Plan view, cross-sectional view and enlarged detail view of racket 100. Racquet 100 may be a peak racket and may include an intermediate layer 240 as described herein.

[0058] like Figure 1As shown, racket 100 may include an outer surface 101 extending across both the front side 102 and the rear side 103; a frame 120 extending around at least a portion of the perimeter of racket 100 to provide structural support and define the overall shape of the racket; and a connecting member 130 creating a connection between the frame 120 and the outer surface 101 and / or one or more core portions or internal structures, fillers, etc. Racket 100 has an elongated shape with a wider head portion that tapers to a narrower handle portion for easy gripping and control during play. The outer surface 101 forms the playing surface of racket 100 for hitting the ball, while the frame 120 and connecting member 130 provide structural integrity and specific performance characteristics to racket 100. It should be understood that in some aspects, the frame 120 may be omitted, for example, at least a portion around the perimeter of racket 100.

[0059] The outer surface 101 of the racket 100 may extend across either or both of the front side 102 and the rear side 103, thereby providing a continuous playing surface for hitting the ball. In some aspects, the outer surface 101 may be integrally formed with the core portion of the racket 100. Alternatively, the outer surface 101 may be a separate component attached to one or more core portions, frames, or other portions of the racket 100. In some aspects, the outer surface 101 may extend onto the handle portion of the racket 100, for example, in which the outer surface 101 may be wrapped with a handle, tape, or otherwise enclosed. The outer surface 101 may be defined by a frame 120, which may extend around the perimeter of the racket 100. In some embodiments, the outer surface 101 may directly contact the frame 120. Additionally or alternatively, a connecting member 130 or another structure (e.g., padding, etc.) may be provided between the outer surface 101 and the frame 120, thereby providing a transition between these components. The outer surface 101 can have various textures or finishes to influence the interaction between the racket and the ball during a match. For example, the outer surface 101 can have a smooth finish, a textured finish, or a combination thereof. The texture or finish of the outer surface 101 can be uniform on both the front side 102 and the rear side 103, or it can vary between these sides or in different areas of the racket 100. In some aspects, the outer surface 101 can be made of materials selected to provide specific performance characteristics, such as durability, ball control, or power transfer. These materials can include, but are not limited to, composite materials, polymers, or metals. The material composition of the outer surface 101 can be uniform throughout, or it can vary in different areas of the racket 100 to optimize performance in specific areas.

[0060] Frame 120 may extend around the perimeter of racket 100 to provide structural support and define the overall shape of racket 100. In some aspects, frame 120 may define the entire perimeter of racket 100, surrounding both the head portion and the handle portion. Alternatively, frame 120 may only surround a portion of the perimeter of racket 100, or may not surround any portion at all. Frame 120 may be constructed as a single continuous piece or may include multiple segments. Frame 120 may have various cross-sectional profiles, such as having different shapes and / or sizes, and / or frame 120 may be hollow (e.g., where frame 120 is partially or completely filled with padding), solid, or a combination thereof. Frame 120 may be constructed from various materials, including but not limited to metals, composite materials, or polymers. The choice of material for frame 120 may affect the overall weight, balance, flexural strength, stiffness, and / or performance characteristics of racket 100. In some aspects, frame 120 may include features for attaching additional components, such as a handle on the handle portion or edge protection around the perimeter of racket 100. These features may include recesses, channels, and / or joints integrated into the structure of frame 120.

[0061] A connecting member 130 may be disposed between the frame 120 and other structures of the racket 100, such as the outer surface 101 of the racket 100 in one or more regions of the racket 100. In some aspects, the connecting member 130 may extend along the inner perimeter 224 of the frame 120, thereby forming a connection between the frame 120 and the outer surface 101. The connecting member 130 may be used to provide a transition between the frame 120 and the outer surface 101. In some aspects, the connecting member 130 may completely surround the core of the racket 100. In this configuration, the connecting member 130 may form a continuous joint between the frame 120 and one or more internal components of the racket 100, such as the core. This arrangement can help distribute force more evenly throughout the racket 100 during a match, potentially improving the racket's performance and durability. The connecting member 130 may be made of a material selected to provide specific performance characteristics. For example, the connecting member 130 may be made of a material having different properties than the frame 120 or the outer surface 101, thereby allowing for customized flexural, damping, and / or energy transfer characteristics of the racket. In some aspects, the connecting member 130 includes greater elasticity than one or more of the core, frame 120, and outer surface 101. In some aspects, the connecting member 130 may have a variable thickness or composition along its length. This variation can allow for different performance characteristics in different areas of the racket 100, such as increased stiffness in the head portion or enhanced flexibility in the handle portion. The connecting member 130 may be joined to both the frame 120 and the outer surface 101 using various methods, such as adhesive bonding, mechanical fastening, or co-molding during the manufacturing process. In another aspect, the racket 100 may not include a connecting member; instead, the area showing the connecting member in some figures may include one or more of the core, filler, first or second surface, or gap.

[0062] The connecting member 130 can be formed from a variety of materials selected to provide the desired performance characteristics for the racket 100. In some aspects, the connecting member 130 may include polymeric materials such as rubber, silicone, thermoplastic elastomers, or polyurethane. The connecting member 130 may additionally or alternatively include foam materials such as ethylene-vinyl acetate (EVA) foam, polyethylene foam, or other closed-cell or open-cell foam structures. In some aspects, the connecting member 130 may include composite materials combining multiple material types to achieve specific mechanical properties. The connecting member 130 may be formed from the same or different materials used for the frame 120, the core portion, or the outer surface 101.

[0063] In alternative configurations, the connecting member 130 may be implemented as a continuous strip, a segmented structure, or a series of discrete elements positioned at intervals around the inner perimeter of the frame 120. The connecting member 130 may have a uniform cross-sectional profile along its length, or the cross-sectional profile may vary to provide different performance characteristics in different regions of the racket 100. In some aspects, the connecting member 130 may include one or more channels, grooves, or holes that affect its flexibility or weight distribution. The connecting member 130 may be a single component or may include multiple layers of the same or different materials. In some aspects, the connecting member 130 may include attachment features such as adhesive surfaces, interlocking profiles, or mechanically engaged elements to facilitate connection with the frame 120, the core portion, or other components of the racket 100.

[0064] The material properties of the connecting member 130 can be selected based on the desired racket performance characteristics. For example, the connecting member 130 can exhibit stiffness within a range suitable for providing shock absorption during impact while maintaining structural integrity. The connecting member 130 can have sufficient flexibility to accommodate deformation during a match while returning to its original shape after stress is removed. In some aspects, the connecting member 130 can provide thermal stability within the temperature range encountered during outdoor or indoor matches. The connecting member 130 can additionally or alternatively exhibit durability characteristics that allow it to withstand repeated impacts without degrading over an extended service life. It should be understood that in some aspects, the connecting member is completely absent.

[0065] like Figure 2 As shown, racket 100 may be part of a kit that allows for customization and assembly of various components, or part of a system for performing racket movements. An exploded view illustrates an example of a layered construction of racket 100, including a head portion 204 and a handle portion 206. Racket 100 may include: a frame 120, which in this example forms the external structure of racket 100; one or more connecting members 130 for positioning adjacent to frame 120 (e.g., along the inner perimeter 224 of the frame); and a core 210 having a first core portion 211 and a second core portion 212, which may be formed on the front side 102 and the rear side 103, respectively, or otherwise engaged with the outer surface 101. An intermediate layer 240 may be included, wherein such intermediate layer 240 may be disposed between the first core portion 211 and the second core portion 212, and wherein the intermediate layer 240 may have properties different from the first core portion 211 and the second core portion 212.

[0066] It should be understood that Figure 2The view of the frame 120 and the middle layer 240 shows one side of the racket 100 (e.g., the front side 102), where the opposite side of the racket 100 (e.g., the back side 103) can include a similar appearance (e.g., the opposite sides can look exactly the same). Figure 2 (A mirror image of the side shown). Therefore, in this way, the core 210 may include portions that can engage with the intermediate layer 240 on a corresponding side of the racket 100. That is, the core 210 may include a first core portion 211 on the front side 102 of the racket 100 and a second core portion 212 on the rear side 103 of the racket 100 opposite to the front side 102. Similarly, the racket 100 may include connecting members 130 disposed on each side of the racket 100—a first connecting member 131 disposed on the front side 102 of the racket 100 and a second connecting member 132 disposed on the rear side 103 of the racket 100.

[0067] Therefore, the core 210 of the racket 100 may include a first core portion 211 and a second core portion 212. In some aspects, the first core portion 211 and the second core portion 212 may be discrete components, with the first core portion 211 positioned on the front side 102 of the racket 100 and the second core portion 212 positioned on the rear side 103 of the racket 100. In some aspects, the first core portion 211 and the second core portion 212 may form an outer surface 101 on their respective sides of the racket 100. Alternatively, the first core portion 211 and the second core portion 212 may each be covered by a separate outer surface 101 component. This configuration allows for independent customization or replacement of each core portion and / or each playing surface.

[0068] The first core portion 211 and the second core portion 212 can be configured to fit within the frame 120 of the racket 100, for example, wherein the first core portion 211 and the second core portion 212 can be disposed on or otherwise engaged or connected to the intermediate layer 240. Thus, the frame 120 may define a cavity 242 or recess in each of the front side 102 and rear side 103 of the racket 100, into which the first core portion 211 and the second core portion 212 can be respectively inserted. The intermediate layer 240 may be designed to accommodate these core portions, potentially providing a surface or structure into which the first core portion 211 and the second core portion 212 can abut. One or more of the first core portion 211 and the second core portion 212 may be at least partially defined by the frame 120, wherein in this context, "defined by" should include the frame 120 at least partially surrounding the core portion by being directly adjacent to it, and / or the frame 120 at least partially surrounding the core portion by utilizing one or more components or gaps between them (e.g., connecting member 130, gaps, etc.), which therefore includes indirectly defining the core portion by the frame 120. In some aspects, one or more of the first core portion 211 and the second core portion 212 may extend from the head portion 204 of the racket 100 to the handle portion 206 of the racket 100.

[0069] The first core portion 211 and the second core portion 212 can be removably and replaceably coupled to the intermediate layer 240. This configuration allows for easy replacement or modification of the core portions without replacing the entire racket 100. The coupling between the core portions and the intermediate layer 240 can be achieved by various means, such as mechanical fasteners, adhesives, or interlocking designs that facilitate secure attachment while allowing future removal. As an example, coupling the core portions to the intermediate layer 240 can include the use of mechanical means, such as one or more of the following: hook-and-loop fasteners, buttons, snaps, sliders, friction fits, snap-fit ​​fits, magnetic attraction (e.g., magnetic elements can be coupled to and / or incorporated into the core portions and / or intermediate layer 240 to create a removable magnetic attachment), screws, bolts, pins, interlocking components, clips, latches, etc.

[0070] The removable and replaceable nature of the first core portion 211 and the second core portion 212 offers several advantages. For example, worn or damaged core portions can be replaced to extend the lifespan of the racket 100. Additionally or alternatively, players can replace core portions with those of different properties to customize the racket 100 for specific playing conditions or personal preferences. This modularity enhances the versatility and lifespan of the racket 100.

[0071] An intermediate layer 240 may be disposed between the first core portion 211 and the second core portion 212, potentially providing additional structural support or performance characteristics to the racket 100. In some aspects, the intermediate layer 240 may be made of one or more materials the same as the frame 120, or the intermediate layer 240 may be made of different materials. The intermediate layer 240 may be bonded to the frame 120 using various methods, such as adhesive bonding, mechanical fastening, or co-molding during the manufacturing process. This bonding can ensure a strong connection between the intermediate layer 240 and the frame 120. In some aspects, the intermediate layer 240 may be an extension of the frame 120. In other words, the intermediate layer 240 may extend from the frame 120 or may be integrally formed with the frame 120. This extension can create a continuous structure from the frame 120 to the interior of the racket 100, potentially enhancing energy transfer during play, for example, to reduce vibration during play, and / or for sound damping, etc. As an example, frame 120 may define the entire perimeter of racket 100, with interlayer 240 present throughout the area defined by frame 120. For example, in this or other aspects, interlayer 240 may be a continuous sheet or strip of material. Alternatively, interlayer 240 may include one or more gaps, which may be design features determined to provide a particular weight, stiffness, or other performance property of the racket. For example, interlayer 240 may include a mesh material.

[0072] Additionally or alternatively, the intermediate layer 240 may include material arranged in a pattern defining one or more voids (e.g., holes, notches, internal voids, etc.). The intermediate layer 240 may include voids arranged in various patterns to affect racket performance in different ways. In some aspects, the intermediate layer 240 may include a honeycomb pattern of hexagonal voids, which can provide a balance between structural support and weight reduction while distributing impact force across the entire playing surface. In other aspects, the intermediate layer 240 may include a radial pattern of voids radiating from the center point of the head portion 204, which can affect how energy is transferred from the ball contact point toward the perimeter of the racket 100. The intermediate layer 240 may additionally or alternatively include a grid pattern of polygonal voids (e.g., rectangular or square voids), which can provide uniform flexibility across the entire playing surface and allow for a consistent response, regardless of where the ball strikes the racket 100. In some cases, the intermediate layer 240 may include a concentric pattern of voids arranged, for example, in rings, which can create regions of varying stiffness from the center of the racket 100 toward its edge, potentially providing a larger effective optimal point. In some aspects, the intermediate layer 240 may include an asymmetrical or irregular pattern of voids, which may be configured to shift the weight distribution of the racket 100 or provide different response characteristics in different areas of the playing surface.

[0073] The intermediate layer 240 can exist throughout the area defined by the frame 120, wherein this configuration can provide consistent support and performance characteristics across the entire playing surface of the racket 100. In some aspects, the intermediate layer 240 can extend from the head portion 204 through the handle portion 206, thereby ensuring uniform structural properties throughout the racket 100. Thus, for example, the intermediate layer 240 can exist within the head portion 204 of the racket 100 (e.g., where the intermediate layer 240 exists throughout the entire head portion 204 of the racket 100). In such a configuration, in one aspect, the intermediate layer 240 can be confined to the head portion 204 of the racket 100 (see, for example, described below). Figure 6 Alternatively, the intermediate layer 240 may be present within the handle portion 206 of the racket 100 (e.g., where the intermediate layer 240 is present throughout the entire handle portion 206 of the racket 100). Thus, the intermediate layer 240 may be present within each of the head portion 204 and the handle portion 206 of the racket 100.

[0074] The interlayer 240 may be made of the same material as another component of the racket 100 (e.g., the frame 120). In some aspects, the interlayer 240 includes carbon fiber. The interlayer 240 may additionally or alternatively include at least one of rubber, plastic, multiple strings (e.g., multiple strings under tension, wherein such strings extend from the frame), etc. The interlayer 240 may be a substantially continuous (and / or substantially uniform) layer or sheet of material. In other aspects, the interlayer 240 may be substantially discontinuous (and / or substantially non-uniform). In some aspects, the interlayer 240 may be porous and / or may include one or more voids, notches, etc. The interlayer 240 may additionally or alternatively include one or more protrusions (e.g., to facilitate connection with the core portion).

[0075] The intermediate layer 240 can have properties different from those of the first core portion 211 and the second core portion 212. This configuration allows for the customization of racket performance characteristics such as weight distribution, stiffness, vibration damping, and sound damping. The relationship between the intermediate layer 240 and the core portions can significantly affect the overall feel and performance of the racket 100 during a match. The intermediate layer 240 can provide a predetermined stiffness to the racket and can be stiff enough to allow one or more of the first and second core portions to serve as the playing surface for the racket. That is, in some examples, including an intermediate layer with predetermined stiffness allows the core structure to include a playing surface (e.g., the core and playing surface may include polymer foam), which is possible because the intermediate layer provides increased strength and stability to the core in this configuration compared to a racket without such an intermediate layer. Alternatively, including an intermediate layer with relatively high stiffness allows for the use of less stiff and / or lighter core materials.

[0076] It should be understood that the intermediate layer 240 structure itself may include features previously found in the core portion of the racket. For example, the intermediate layer 240 itself may define an interior comprising a core material (e.g., a honeycomb core, foam, etc.) and / or filler. For example, the interior of the intermediate layer 240 may include a core material defining one or more gaps (e.g., along a perimeter structure formed by the core material), which are wholly or partially filled with filler. That is, it will be understood that the interior of the intermediate layer 240 may include any core features described, for example, in International Patent Application No. PCT / US2024 / 042535 (and published as WO2025 / 049122), filed August 15, 2024, the entire contents of which are hereby incorporated by reference.

[0077] It will also be understood that the intermediate layer 240 structure itself may include features of the frame described, for example, in International Patent Application No. PCT / US2025 / 023898 (and published as WO2025 / 221545), filed April 9, 2025, the entire contents of which are hereby incorporated by reference. That is, the intermediate layer 240 may include a region thinner than other regions of the intermediate layer 240 (e.g., a region adjacent to the throat portion of the racket). The lack of material in this portion of the intermediate layer 240 (e.g., directly above the handle) can provide advantageous flexion of the racket during play (e.g., how quickly the racket can return to its original shape after flexion), thereby improving dynamic characteristics, control, feel, responsiveness, and / or similar properties. Furthermore, the gaps formed by the lack of material in this portion of the intermediate layer 240 can provide areas for enhanced weight control (e.g., by filling the gaps with weighting material) and / or for enhanced sound or vibration control (e.g., by filling the gaps with sound-damping material and / or vibration-damping material).

[0078] Figures 3A-3C Additional details about the construction of racket 100 are provided through examples. Figure 3CAs shown in the enlarged cross-sectional view, the racket 100 may include a frame 120 forming an outer boundary, wherein a first core portion 211 and a second core portion 212 are positioned on opposite sides of an intermediate layer 240. An outer surface 101 extends across both the front side 102 and the rear side 103 of the racket 100, wherein the outer surface may be integral with the core portions or individual components (e.g., a removable and replaceable playing surface). A gap 332 may be formed between portions of the racket structure (e.g., between the inner perimeter 224 of the frame 120 and one or more of the core portions 211, 212). In some aspects, connecting members 130 and / or fillers may be disposed within at least a portion of the gap 332 to provide connection between the various components.

[0079] As shown in the figure, the intermediate layer 240 may be an extension of the frame 120, or the intermediate layer 240 may be otherwise incorporated into the frame 120 using various methods. In other aspects, the intermediate layer 240 may be wholly or partially disconnected from the frame 120. In some aspects, and as shown in the figure, the intermediate layer 240 may be thinner than the first core portion 211 and the second core portion 212 (where the thickness is measured in the direction between the front side 102 and the rear side 103). The thickness and profile of the intermediate layer 240 may be selected to provide specific performance characteristics. In some aspects, the thickness and profile of the intermediate layer 240 may vary along the racket 100 to provide specific performance characteristics in different regions of the racket 100.

[0080] In some respects, the intermediate layer 240 may be more rigid than the first core portion 211 and the second core portion 212. This configuration allows for customization of racket performance characteristics, such as increasing stiffness in the impact zone of the racket 100. Alternatively, in some respects, the intermediate layer 240 may be more flexible than the first core portion 211, the second core portion 212, and / or the frame 120. This arrangement can provide the racket 100 with different performance characteristics, such as enhanced flex or improved damping during impact. The relative flexibility or rigidity of the intermediate layer 240 compared to other components of the racket 100 (e.g., one or more of the first core portion 211 and the second core portion 212, the frame 120, the outer surface 101, etc.) can affect the overall feel and performance of the racket 100 during a match. For example, a more flexible intermediate layer 240 can allow for greater deformation of the racket 100 upon ball impact, potentially increasing power transfer, spin generation, etc. Conversely, the more rigid intermediate layer 240 can provide enhanced control and accuracy by minimizing racket deformation during impact. Therefore, in some respects, the intermediate layer 240 can have properties different from the first core portion 211 and the second core portion 212. This configuration allows for customization of racket performance characteristics such as weight distribution, stiffness, or vibration damping.

[0081] The gap 332 can serve various functions within the racket structure. In some configurations, the gap 332 can remain empty, creating a void space that can affect the racket's weight distribution, acoustic properties, vibration damping, etc. Alternatively, the gap 332 can be filled with one or more materials to achieve specific performance characteristics. In some aspects, a filler can be disposed within the gap 332. This filler can be selected from a range of materials that have properties that complement or enhance the overall performance of the racket 100. For example, the filler can be a lightweight foam to maintain a low overall weight while providing structural support, or the filler can be a denser material to add weight to specific areas of the racket 100 for balance or power enhancement. The gap 332 can additionally or alternatively be used to accommodate a connecting member 130. In such a configuration, the connecting member 130 can be disposed within at least a portion of the gap 332 to provide a connection between various components of the racket 100. The connecting member 130 can serve as a joint between the frame 120 and other internal components, such as the first core portion 211 and the second core portion 212. In some respects, gap 332 may extend wholly or partially through each of the first core portion 211 and the second core portion 212. For example, gap 332 may include a continuous void or fill space extending through at least a majority of the thickness of racket 100. When gap 332 extends through both core portions, this can allow for the insertion of material or components across the entire thickness of racket 100, thus providing opportunities for further customization of racket properties. The presence and configuration of gap 332 can significantly affect the overall performance and feel of racket 100 during a match. By changing the size, shape, and content of gap 332, manufacturers may be able to fine-tune racket characteristics to suit different playing styles or preferences.

[0082] Therefore, gap 332 can be formed between at least one of the following: (i) the first core portion 211 and the frame 120, and (ii) the second core portion 212 and the frame 120. The racket 100 may also include a connecting member 130 disposed within at least a portion of gap 332. Gap 332 can be formed along each of the front side 102 and rear side 103 of the racket 100, for example, wherein the first connecting member 131 is disposed in gap 332 on the front side 102 of the racket 100, and wherein the second connecting member 132 is disposed in gap 332 on the rear side 103 of the racket 100. In some respects, the first connecting member 131 and the second connecting member 132 are substantially the same. In other respects, the first connecting member 131 and the second connecting member 132 are different. Additionally or alternatively, filler may be disposed within at least a portion of gap 332. Alternatively, gap may be omitted.

[0083] Figure 4A core 210 for a racket having multiple core portions is shown according to a representative example. It should be understood that the core 210 and its core portions can be included on any racket described herein. Typically, the core 210 can be a component forming part of the racket's impact surface and / or internal structure. The core 210 can include a first core portion 211 and a second core portion 212—which can be the same as or similar to the core portions described above or elsewhere herein—whereby these portions can be arranged in a parallel configuration when assembled on the racket (e.g., arranged in an intermediate layer such as...). Figure 2 (on opposite sides of the intermediate layer 240). Each core portion may have the same or similar cross-sectional profile and may have similar thickness; or the core portions may be different (e.g., including different sizes, shapes, materials, core structures, etc.). The first core portion 211 and the second core portion 212 are shown as being separated by a small gap between them, illustrating the distinct and separate nature of these components, which may be so separated on the racket via an intermediate layer or other structure / component.

[0084] In some respects, the first core portion 211 and the second core portion 212 can be removable and replaceable components of the racket. This configuration allows for customization of the racket's performance characteristics and / or replacement of worn components. For example, the first core portion 211 and the second core portion 212 can be included as separate components in a kit for assembling or modifying the racket. Thus, either or both of the first core portion 211 and the second core portion 212 may include one or more features structurally configured to facilitate or accommodate the removal of the core portion from the racket (e.g., in a non-destructive manner) and / or the placement or replacement of the core portion within the racket. Examples of such features include: adhesives or glues, tapes, hook and loop fasteners, elements configured for snap-fit ​​or friction-fit connections, one or more magnets (e.g., materials attached to, embedded in, or defining a component), clamps, clips, pins, mechanically bonded elements, features configured to interlock with other racket components, latches, nails, pins, rivets, screws, sliders, pins, etc.

[0085] Figure 5 The image shows a Peak 500 racket based on a representative example, and Figure 6 The following is illustrated based on a representative example. Figure 5An exploded view of racket 500. Racket 500 may include any features described herein with reference to other rackets, and vice versa. Racket 500 may include an outer surface 501 forming the playing surface of the racket, a frame 520 extending around at least a portion of the perimeter of racket 500 and providing structural support, and a connecting member 530 disposed as shown between the frame 520 and the outer surface 501. The connecting member 530 may extend continuously around the inner perimeter of the frame 520, thereby forming a connection between the frame 520 and the outer surface 501 and / or other components such as the core portion. Unlike other rackets described herein, racket 500 is characterized in that it may have a connecting member 530 that completely surrounds the core, thereby providing a continuous joint between the frame 520 and the internal components. The racket 500 may also include a frame 520 disposed in the head portion of the racket 500, thereby forming a placement area for other components in the head portion, such as the connecting member 530, the outer surface 501, the intermediate layer and / or one or more core portions.

[0086] like Figure 6 As shown, racket 500 may include a core 610, which includes a first core portion 611 and a second core portion 612. These core portions may be positioned within the racket structure—for example, disposed within the frame 120 along an intermediate layer 640, such that each side of racket 500 includes its own core portion disposed on the intermediate layer 640. Therefore, in some aspects, the first core portion 611 and the second core portion 612 may be discrete components, with the first core portion 611 positioned on the front side of racket 500 and the second core portion 612 positioned on the rear side of racket 500. This configuration allows for independent customization or replacement of each core portion.

[0087] The first core portion 611 and the second core portion 612 can be configured to fit within the frame 520 of the racket 500. The frame 520 may define cavities 642 or recesses on both the front and rear sides of the racket 500, into which the first core portion 611 and the second core portion 612 can be inserted, respectively. An intermediate layer 640 may be designed to receive these core portions, potentially providing a surface or structure into which the first core portion 611 and the second core portion 612 can abut. The first core portion 611 and the second core portion 612 can be removably and replaceably coupled to the intermediate layer 640. This configuration allows for easy replacement or modification of the core portions without replacing the entire racket 500. The coupling between the core portions and the intermediate layer 640 can be achieved through various means, such as mechanical fasteners, adhesives, tapes, and / or interlocking designs that facilitate secure attachment while allowing for future removal (e.g., non-destructive removal) and potential re-engagement.

[0088] The racket 500 typically includes a head portion 604 and a handle portion 606. An intermediate layer 640 may be present within the head portion 604 of the racket 500. In some aspects, the intermediate layer 640 may be confined to the head portion 604 of the racket 500. This configuration differs from... Figure 2 The racket 100 shown, for example, in Figure 2 In the middle, the intermediate layer 240 extends through both the head portion and the handle portion of the racket 100. By confining the intermediate layer 640 to the head portion 604, the racket 500 can be more easily assembled and / or reassembled.

[0089] Figure 6 The connecting member 530 shown in the exploded view can be constructed as a single component or multiple discrete components. In some aspects, the connecting member 530 may include two separate components, one positioned on the front side of the racket 500 and the other positioned on the rear side of the racket 500. This configuration allows for customization of the properties of the connecting member 530 on each side of the racket 500. In some aspects, the connecting member 530 may define a continuous closed shape, for example, wherein the connecting member 530 is structurally configured to completely surround the core portion of the racket 500. In another aspect, the connecting member 530 may include multiple components on each side of the racket 500, wherein these components may or may not be configured to completely surround the respective core portions. In yet another aspect, the racket may not include a connecting member.

[0090] Figure 7 The image shows a Peak 700 racket based on a representative example. Figure 8A and Figure 8B The following is illustrated based on a representative example. Figure 7 A partial view of the 700 racket, and Figures 9A-9C The following are examples based on representative cases. Figure 7 The racket 700 is shown in plan view, cross-sectional view, and enlarged detail view. The racket 700 may include any features described herein with reference to other rackets, and vice versa. Similar to other rackets described herein, the racket 700 may include an outer surface 701 (e.g., a playing surface for the racket 700) disposed on both the front side 702 and the rear side 703 of the racket 700, a connecting member 730 (which may be the same as or similar to any connecting member described herein), and an intermediate layer 740. However, the frame of the racket 700 may include multiple portions, such as a first frame portion 721 and a second frame portion 722. The intermediate layer 740 may extend within the internal region defined by the first frame portion 721 and the second frame portion 722.

[0091] Figure 8AA portion of a racket 700 is shown, in which a middle layer 740 is positioned between a first core portion 811 and a second core portion 812, wherein a connecting member 730 is connected around the first core portion 811 and the second core portion 812; and Figure 8B A portion of a racket 700 is shown, in which, for clarity, an intermediate layer 740 is shown disposed between each of the first frame portion 721 and the second frame portion 722 (note that although the intermediate layer 740 is shown in each of the two views, the assembled racket 700 may include only a single intermediate layer 740). The first frame portion 721 and the second frame portion 722 may include any features of a frame for a racket as described herein, such as having various cross-sectional profiles (e.g., hollow, solid, or filled with filler material), having a consistent or varying thickness and shape, being constructed of one or more of various materials, etc. Figures 8A-8B The view in the diagram illustrates one example of how the intermediate layer 740 can be integrated into the overall structure of the racket 700. For instance, the intermediate layer 740 can be sandwiched between the first frame portion 721 and the second frame portion 722, with the connecting member 730 positioned around the inner perimeter of the frame. The intermediate layer 740 can extend to the outer perimeter of the frame.

[0092] Figure 9A The following is illustrated based on a representative example. Figure 7 A flat diagram of a peak racket; Figure 9B It shows along Figure 9A Cross-sectional view of line 9B-9B; and Figure 9C It shows Figure 9B An enlarged detail view of region 9C, which includes a first frame portion 721 and a second frame portion 722, a connecting member 730, and a first core portion 811 and a second core portion 812 positioned on opposite sides of the intermediate layer 740. Therefore, Figure 9C The cross-sectional view in the figure illustrates an example of the arrangement of a first core portion 811, a second core portion 812, and an intermediate layer 740 within the racket 700. The first core portion 811 may be positioned on the front side 702 of the racket 700, while the second core portion 812 may be positioned on the rear side 703. The intermediate layer 740 may be disposed between the first core portion 811 and the second core portion 812, thereby creating a sandwich-like structure within the racket 700. Furthermore, the intermediate layer 740 may be disposed between the first frame portion 721 and the second frame portion 722, and may extend to the outer perimeter of the racket 700.

[0093] In some respects, the intermediate layer 740 may have properties different from those of the first core portion 811 and the second core portion 812. For example, the intermediate layer 740 may be made of a material with different stiffness, density, and / or elasticity compared to the core portions. This configuration allows for customization of the racket's flexure, damping, and / or energy transfer characteristics.

[0094] The thicknesses of the first core portion 811, the second core portion 812, and the intermediate layer 740 may vary within each element or among the multiple elements. In some respects, the intermediate layer 740 may be thinner than each of the first core portion 811 and the second core portion 812. Alternatively, depending on the desired performance characteristics of the racket 700, the intermediate layer 740 may be thicker than the core portions.

[0095] Figure 10 The image shows a representative example of a pickle 1000. Figure 11 The example shown is of a 1050 without edge protection, based on a representative example. Figure 10 The racket costs 1000. Figure 12 The following is illustrated based on a representative example. Figure 11 A magnified side view of region 12 of a pickle 1000. The pickle 1000 may include any features described herein with reference to other pickles, and vice versa. However, in this example embodiment, the pickle 1000 may include a frame 1120 thinner than the interlayer 1140 (e.g., where the thickness is measured in the direction between the front side 1002 and the rear side 1003). That is, the frame 1120 may at least partially surround the interlayer 1140 along the outer perimeter of the interlayer, but the interlayer 1140 may be exposed above and below the frame 1120 due to the relative thickness. In one aspect, a first core portion 1211 and a second core portion 1212 of the core 1110 may be engaged to these exposed areas of the interlayer 1140, for example, by engaging surfaces to these exposed areas and / or completely or partially enclosing the interlayer 1140. Therefore, unlike other exemplary aspects described herein, racket 1000 may include an intermediate layer 1140 protruding from the racket structure defined by frame 1120, rather than a base forming a cavity within the racket structure. An edge guard 1050 may be present, surrounding a joint formed on the side of racket 1000 by this configuration, wherein, for clarity and understanding, Figure 11 A view is shown without the edge protection element 1050.

[0096] Figure 12 An enlarged front view of the arrangement of the core portions 1211, 1212, the frame 1120, and the intermediate layer 1140, viewed from the side of the racket 1000, is shown. Figure 12The shading in the figure is used to indicate similar parts and does not indicate any specific material, surface finish, texture, etc. As shown, frame 1120 surrounds intermediate layer 1140, but portions of intermediate layer 1140 are exposed above and below frame 1120. Although not shown here, one or both of the first core portion 1211 and the second core portion 1212 may be configured to enclose the exposed portions of intermediate layer 1140.

[0097] Figures 13A-13C Each is shown according to a representative example. Figure 10 The diagram shows the plan view, cross-sectional view, and enlarged detail of the Peak 1000 racket. Figure 13C As shown in the cross-sectional view, the frame 1120 can be positioned around the racket structure such that the frame 1120 is adjacent to the middle layer 1140. An edge protector 1050 can surround the frame 1120. As shown, the edge protector 1050 can be adjacent to one or more of the first core portion 1211, the second core portion 1212, and the middle layer 1140. Additionally or alternatively, a portion of the edge protector 1050 can cover one or more of these components.

[0098] An intermediate layer 1140 may be disposed between the core portion and / or the outer surface (playing surface) of the racket 1000. As an example, a first core portion 1211 and a second core portion 1212 are shown sandwiching the intermediate layer 1140 (where one or both of these core portions are coupled to the intermediate layer 1140). These core portions may include the playing surface, such as a removable and replaceable playing surface. Additionally or alternatively, the playing surface may be coupled to the core portions, for example, to form a removable and replaceable substrate portion thereon, also including the playing surface.

[0099] Figure 14 A flowchart of a method 1400 for forming a pickle racket, according to a representative example, is shown. Method 1400 may include a series of steps for constructing a racket having various components (e.g., any one or more rackets described herein).

[0100] As shown in step 1402, method 1400 may include forming a racket structure. The racket structure may include a frame, a middle layer, and one or more cavities. The middle layer may be defined by the frame and disposed at least partially along a plane intersecting opposite sides of the frame. That is, the middle layer may be disposed along a longitudinally extending centerline through the frame. The middle layer may define a first mating surface along the front side of the racket structure and a second mating surface along the rear side of the racket structure (e.g., as shown in step 1402). Figures 1-2 As shown, the side of the intermediate layer 240 facing the front side 102 can be a first bonding surface, and the side of the intermediate layer 240 facing the rear side 103 can be a second bonding surface.

[0101] A first cavity may exist along the front side of the racket structure, and a second cavity may exist along the rear side of the racket structure. In some aspects, the first cavity may be defined at least partially by a first mating surface of the frame and the intermediate layer, and the second cavity may be defined at least partially by a second mating surface of the frame and the intermediate layer. This configuration can create space within the racket structure for receiving additional components, such as notches or cavities, to receive other components of the racket, including internal and / or external components.

[0102] As shown in step 1404, method 1400 may include inserting a first core portion into a first cavity and bonding the first core portion to a first bonding surface of an intermediate layer. Therefore, the first core portion may be structurally configured to fit fully or partially within the first cavity of the racket structure.

[0103] As shown in step 1406, method 1400 may include inserting a second core portion into a second cavity and bonding the second core portion to a second bonding surface of an intermediate layer. Therefore, the second core portion may be structurally configured to fit fully or partially within the second cavity of the racket structure.

[0104] Steps 1404 and 1406 may also include attaching or otherwise securing the core portion to the mating surface of the intermediate layer. This may include any techniques described herein, including but not limited to one or more of the following: adhesives or glues, tapes, hook-and-loop fasteners, snap-fit ​​connections, friction-fit connections, one or more magnets (e.g., materials attached to, embedded in, or defining a component), clamps, clips, pins, mechanical bonding, interlocking features, latches, nails, pins, rivets, screws, sliders, pins, etc.

[0105] In some cases, the core portion may form part of the outer surface on the front side of the racket. Alternatively, the core portion may be covered by a separate outer surface component. The core portion may be removably and replaceably attached to the intermediate layer. This configuration allows for easy replacement or modification of the core portion without needing to replace the entire racket structure.

[0106] In some respects, the first core portion and the second core portion can be different. For example, the first core portion and the second core portion can have different materials, densities, thicknesses, or other physical properties. In other respects, the first core portion and the second core portion can be the same.

[0107] As shown in step 1408, method 1400 may include inserting a connecting member (or other structure and / or filler) into a gap formed between at least one of: a first core portion and a frame, and a second core portion and a frame. The connecting member may be disposed within at least a portion of the gap to provide a connection between various components of the racket structure. In other respects, other materials or fillers may be inserted into such gaps. The gap may additionally or alternatively be free of material, or there may be no gaps at all in the racket structure.

[0108] Therefore, in some aspects, gaps can be formed along each of the front and rear sides of the racket. A first connecting member can be disposed in the gap on the front side of the racket, while a second connecting member can be disposed in the gap on the rear side of the racket. The first and second connecting members can be substantially the same or can have different properties, thereby allowing for customization of racket performance characteristics on each side. The connecting members can be constructed from materials selected to provide specific performance characteristics. For example, the connecting members can be made from materials having different properties than the frame or outer surface, thereby allowing for customization of the racket's flexural, damping, and / or energy transfer characteristics. In some aspects, the connecting members can be joined to both the frame and / or other parts of the racket using various methods such as adhesive bonding, mechanical fastening, chemical bonding, etc. In some aspects, the connecting members can be removable and replaceable.

[0109] As shown in step 1410, method 1400 may include attaching a playing surface to one or more of the first core portion and the second core portion. In some aspects, the playing surface may be removably and replaceably attached to at least one of the first core portion and the second core portion. The attachment of the playing surface to the first core portion and / or the second core portion can be achieved by various means, such as any means described herein for attaching a core portion to an intermediate layer or other portion. For example, in some aspects, adhesive bonding may be used to secure the playing surface to the core portion. Alternatively, mechanical fastening methods or interlocking designs may be employed to facilitate a secure attachment while allowing for possible removal or replacement of the playing surface in the future. The removable and replaceable nature of the playing surface can provide several advantages. For example, a worn or damaged playing surface can be replaced to extend the racket's lifespan. Furthermore, players can replace playing surfaces with different properties to customize the racket for specific playing conditions or personal preferences. This modularity can enhance the versatility and lifespan of the racket.

[0110] In some respects, the racket can be supplied as part of a kit that includes one or more playing surfaces and / or one or more core sections. In an example, the playing surface may be attachable to at least one of a first core section and a second core section. The kit allows users to customize their racket to suit their preferences or playing conditions by selecting and attaching different playing surfaces.

[0111] In some respects, method 1400 can produce a racket with an intermediate layer that provides predetermined characteristics to the racket, such as desired flexibility or stiffness. Therefore, the intermediate layer can influence the overall flexion and responsiveness of the racket during a match. By selecting a material with specific properties for the intermediate layer, and / or by shaping the intermediate layer in a specific manner or configuration, the characteristics of the racket can be customized to suit different playing styles or preferences.

[0112] Potential use cases for Method 1400 could involve a Peak Ball equipment manufacturer creating a range of customizable rackets. The manufacturer could offer a range of intermediate layers with different properties, core materials, and various options for the playing surface. Players could then choose the combination of components best suited to their playing style, potentially resulting in rackets optimized for power, control, or a balance of both. The manufacturer could also provide replacement parts, allowing players to update or modify their rackets as needed without purchasing entirely new ones.

[0113] One aspect of this teaching includes a kit characterized in that it may have one or more rackets (or features / components thereof) described herein. For example, a kit for a racket may include: a racket structure, a first core portion, and a second core portion.

[0114] A racket structure may include a frame and an intermediate layer defined directly or indirectly by the frame. The intermediate layer may be disposed along a plane intersecting opposite sides of the frame, for example, along the centerline of the frame between opposite sides. In some aspects, the intermediate layer may be thinner than the frame (along at least one region of the intermediate layer, such as a mating surface), such that the intermediate layer defines a first cavity and a second cavity, the first cavity having a first mating surface along the front side of the racket structure and the second cavity having a second mating surface along the rear side of the racket structure. In an exemplary aspect, the first and second cavities may be entirely disposed within the head portion of the racket structure. In such an aspect, the frame may surround the head portion of the racket structure.

[0115] A first core portion may be at least insertable into a first cavity and engageable with a first mating surface, and a second core portion may be at least insertable into a second cavity and engageable with a second mating surface. In one aspect, the first core portion and the second core portion are substantially identical. In another aspect, the first core portion and the second core portion are different. One or more of the first core portion and the second core portion may define a playing surface for a racket. Alternatively, the kit may include one or more playing surfaces.

[0116] The racing surface included in the kit can be coupled to at least one of the first core portion and the second core portion. For example, the racing surface can be removably and replaceably coupled to at least one of the first core portion and the second core portion.

[0117] For illustrative purposes, the foregoing description has been described with reference to specific embodiments. However, the illustrative discussion above is not intended to be exhaustive or to limit this disclosure to the precise forms disclosed. In view of the above teachings, many modifications and variations are possible.

[0118] Unless the context explicitly requires otherwise, throughout the description, the words “comprise,” “comprising,” “include,” and “including” should be interpreted in a inclusive sense, not an exclusive or exhaustive sense; that is, in the sense of “including but not limited to.” Furthermore, the words “herein,” “hereunder,” “above,” “below,” and similar terms refer to the entire application, and not to any specific part of it.

[0119] It should be understood that the devices, systems, and methods described above are illustrated by way of example and not limitation. For example, with respect to the methods provided above, the disclosed steps may be modified, supplemented, omitted, and / or rearranged without departing from the scope of this disclosure, unless expressly indicated to the contrary. Many variations, additions, omissions, and other modifications will be apparent to those skilled in the art. Furthermore, unless a particular order is expressly required or otherwise clearly apparent from the context, the order or presentation of the method steps in the above description and figures is not intended to require that the steps be performed in that order.

[0120] Unless explicitly provided otherwise or clearly apparent from the context, the method steps of the embodiments described herein are intended to include any suitable method for causing such method steps to be performed, consistent with the patentability of the appended claims. Thus, for example, performing step X includes any suitable method for causing another party (such as a remote user, a remote processing source (e.g., a server or cloud computer) or machine) to perform step X. Similarly, performing steps X, Y, and Z may include any method for directing or controlling any combination of such other individuals or sources to perform steps X, Y, and Z to obtain the benefits of such steps. Therefore, the method steps of the embodiments described herein are intended to include any suitable method for causing one or more other parties or entities to perform steps, consistent with the patentability of the appended claims, unless explicitly provided otherwise or clearly apparent from the context. Such parties or entities need not be subject to the direction or control of any other party or entity, and need not be located within a particular jurisdiction.

[0121] While specific embodiments have been shown and described, it will be apparent to those skilled in the art that various changes and modifications in form and detail may be made in this disclosure without departing from the spirit and scope thereof, and are intended to form a part of the invention as defined by the appended claims, which shall be interpreted in the broadest sense permitted by law.

Claims

1. A racket, comprising: frame; A first core portion, located on the front side of the racket, is at least partially defined by the frame; The second core portion is located on the rear side of the racket opposite to the front side, and the second core portion is at least partially defined by the frame; and An intermediate layer is disposed between the first core portion and the second core portion, the intermediate layer having one or more properties different from each of the first core portion and the second core portion.

2. The racket according to claim 1, wherein, The intermediate layer extends from the frame.

3. The racket according to claim 2, wherein, The intermediate layer is made of one or more materials that are the same as those used in the frame.

4. The racket according to claim 3, wherein, The frame defines the entire perimeter of the racket, and the intermediate layer exists within the entire area defined by the frame.

5. The racket according to any one of claims 1 to 4, wherein, The intermediate layer is integrated into the framework.

6. The racket according to any one of claims 1 to 5, wherein, The intermediate layer is located within the head portion of the racket.

7. The racket according to claim 6, wherein, The intermediate layer is present throughout the entire head portion of the racket.

8. The racket according to any one of claims 1 to 7, wherein, The intermediate layer is confined to the head portion of the racket.

9. The racket according to any one of claims 1 to 7, wherein, The intermediate layer is located within the handle portion of the racket.

10. The racket according to claim 9, wherein, The intermediate layer is present throughout the entire handle portion of the racket.

11. The racket according to any one of claims 1 to 10, wherein, The intermediate layer is a continuous sheet of material.

12. The racket according to any one of claims 1 to 11, wherein, The intermediate layer includes one or more voids.

13. The racket according to claim 12, wherein, The intermediate layer comprises a material arranged in a pattern to define the one or more voids.

14. The racket according to any one of claims 1 to 13, wherein, The intermediate layer comprises a mesh material.

15. The racket according to any one of claims 1 to 14, wherein, The intermediate layer is thinner than each of the first core portion and the second core portion.

16. The racket according to any one of claims 1 to 15, wherein, The intermediate layer is more rigid than each of the first core portion and the second core portion.

17. The racket according to any one of claims 1 to 15, wherein, The intermediate layer is more flexible than each of the first core portion and the second core portion.

18. The racket according to any one of claims 1 to 17, wherein, The intermediate layer comprises carbon fiber.

19. The racket according to any one of claims 1 to 18, wherein, The intermediate layer includes at least one of rubber, plastic, and thread.

20. The racket according to any one of claims 1 to 19, wherein, The intermediate layer comprises multiple wires under tension.

21. The racket according to claim 20, wherein, The multiple lines extend from the frame.

22. The racket according to any one of claims 1 to 21, wherein, The intermediate layer includes a filler within the inner portion of the intermediate layer.

23. The racket according to any one of claims 1 to 22, wherein, The intermediate layer includes a honeycomb or grid structure within the inner portion of the intermediate layer.

24. The racket according to any one of claims 1 to 23, wherein, The intermediate layer includes variations in its thickness.

25. The racket according to any one of claims 1 to 21, further comprising a gap formed between at least one of the following: (i) the first core portion and the frame, and (ii) the second core portion and the frame.

26. The racket according to claim 25, further comprising a connecting member disposed within at least a portion of the gap.

27. The racket according to claim 26, wherein, The gap is formed along each of the front and rear sides of the racket, wherein a first connecting member is disposed in the gap on the front side of the racket, and wherein a second connecting member is disposed in the gap on the rear side of the racket.

28. The racket according to claim 27, wherein, The first connecting member and the second connecting member are substantially the same.

29. The racket according to claim 27, wherein, The first connecting member and the second connecting member are different.

30. The racket according to any one of claims 25 to 29, wherein, The gap extends through each of the first core portion and the second core portion.

31. The racket according to any one of claims 25 to 29, further comprising a filler disposed within at least a portion of the gap.

32. The racket according to any one of claims 1 to 31, wherein, One or more of the first core portion and the second core portion are removable and replaceable.

33. The racket according to any one of claims 1 to 32, wherein, One or more of the first core portion and the second core portion are removably and replaceably connected to the intermediate layer.

34. The racket according to claim 33, wherein, The connection between one or more of the first core portion and the second core portion and the intermediate layer is provided by one or more of tape, adhesive and magnetic attraction.

35. The racket according to any one of claims 33 to 34, wherein, The connection between one or more of the first core portion and the second core portion and the intermediate layer is provided by mechanical means.

36. The racket according to any one of claims 1 to 35, wherein, One or more of the first core portion and the second core portion are structurally configured as the outer surface of the playing surface for the racket.

37. The racket according to claim 36, wherein, The intermediate layer provides a predetermined stiffness to the racket, which allows one or more of the first core portion and the second core portion to serve as the playing surface for the racket.

38. A method of forming a racket, the method comprising: A racket structure is formed, the racket structure comprising: - Framework; - An intermediate layer defined by the frame and disposed at least partially along a plane intersecting opposite sides of the frame, the intermediate layer defining a first mating surface along the front side of the racket structure and a second mating surface along the rear side of the racket structure; - A first cavity, the first cavity being along the front side of the racket structure, the first cavity being at least partially defined by the first mating surface of the frame and the intermediate layer; and - A second cavity, the second cavity being along the rear side of the racket structure, the second cavity being at least partially defined by the second mating surface of the frame and the intermediate layer; The first core portion is inserted into the first cavity and the first core portion is bonded to the first bonding surface of the intermediate layer; and The second core portion is inserted into the second cavity and the second core portion is bonded to the second bonding surface of the intermediate layer.

39. The method of claim 38, further comprising attaching a racing surface to one or more of the first core portion and the second core portion.

40. The method according to any one of claims 38 to 39, further comprising inserting a connecting member into a gap formed between at least one of the following: the first core portion and the frame, and the second core portion and the frame.

41. The method according to any one of claims 38 to 40, further comprising inserting filler into one or more gaps formed between at least one of the following: the first core portion and the frame, and the second core portion and the frame.

42. A kit for a racket, the kit comprising: A racket structure includes a frame and an intermediate layer defined by the frame, the intermediate layer being disposed along a plane intersecting opposite sides of the frame, and the intermediate layer being thinner than the frame, such that the intermediate layer defines a first cavity and a second cavity, the first cavity having a first engagement surface along a front side of the racket structure, and the second cavity having a second engagement surface along a rear side of the racket structure. A first core portion, which is capable of being inserted into at least the first cavity and engaging with the first engagement surface; and The second core portion is capable of being inserted into at least the second cavity and engaging with the second engagement surface.

43. The kit according to claim 42, wherein, The first core portion and the second core portion are substantially the same.

44. The kit according to claim 42, wherein, The first core portion and the second core portion are different.

45. The kit according to any one of claims 42 to 44, wherein, One or more of the first core portion and the second core portion are defined for the playing surface of the racket.

46. ​​The kit according to any one of claims 42 to 44 further includes one or more racing surfaces.

47. The kit of claim 46, wherein, The one or more competition surfaces can be connected to at least one of the first core portion and the second core portion.

48. The kit according to claim 47, wherein, The one or more competition surfaces are removably and replaceably coupled to at least one of the first core portion and the second core portion.

49. The kit according to any one of claims 42 to 48, wherein, The first cavity and the second cavity are completely located within the head portion of the racket structure.

50. The kit of claim 49, wherein, The frame surrounds the head portion of the racket structure.

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