Pickleball Paddle with Replaceable Core, Replaceable Face Sheet, and/or Hand Guard

Description

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority from U.S. Provisional Patent Application No. 63/673,627 filed Jul. 19, 2024, the entire content of which is herein incorporated by reference.

FIELD

This application is related in general to pickleball, and more particularly to pickleball paddles.

BACKGROUND

High quality pickleball paddles are expensive. For many players, their pickleball paddles need to be replaced after frequent use. For example, some professional pickleball players say they usually replace paddles every two tournaments. Some players change their paddles after a few months of frequent use. The paddle face can be damaged easily due to humidity, sun, impact, etc. The cost of pickleball paddles can be a burden to average pickleball payers.

Therefore, there is a need to reduce the cost of pickleball paddles without reducing the quality of those paddles.

SUMMARY OF EXAMPLE EMBODIMENTS

According to an embodiment, a pickleball paddle comprising a handle, a frame fixedly or removably attached to the handle and configured to have an open configuration and a close configuration, a core, and a face sheet arranged over the core and fitted inside the frame is provided. The core and the face sheet are configured to firmly fit inside the frame when the frame is in the close configuration, and at least one of the core and the face sheet are replaceable when the frame is in the open configuration.

The frame may comprise an attached or integrated fastening mechanism configured to connect two ends of the frame for the close configuration and disconnect the two ends for the open configuration. The fastening mechanism may include a latch arranged on the frame, where a first part of the latch may be on a first end of the frame and a second part of the latch may be on a second end of the frame. The latch may include a clamp, or a sliding latch.

The fastening mechanism may include corresponding interlocking shaped recesses formed on a first part of the frame and a second part of the frame. The first part of the frame and the second part of the frame may be separable at an opening point on the frame.

The fastening mechanism may comprise a threaded hole configured to receive a screw through the frame to connect two ends of the frame to each other for the close configuration and disconnect the two ends for the open configuration.

The frame may be fixedly attached to the handle, and the fastening mechanism may be configured to connect the two ends of the frame at an opening point on the frame.

The frame may be fixedly attached to the handle and one end of the frame may be detachable from the handle for the open configuration, and a fastening mechanism may be configured to secure the one end to the handle for the close configuration.

The frame may be fixedly attached to the handle, and a fastening mechanism may be configured to, at two opening points on the frame, secure a top part of the frame to a bottom part of the frame for the close configuration and release the top part of the frame to detach from the bottom part of the frame for the open configuration.

In the open configuration, the top part of the frame may be movable along extensions attached to the bottom part of the frame at the opening points.

The frame may be removably attached to the handle, and a fastening mechanism may be configured to secure two ends of the frame to the handle for the close configuration.

The frame may be removably attached to the handle and a fastening mechanism may be configured to secure two ends of the frame to the handle for the close configuration, and the fastening mechanism may include a threaded member integrated with a removable bottom of the handle.

The inner surface of the frame may be configured with a recess, and a part of the core may fit within the recess. The inner surface of the frame may include an extrusion configured to fit into a recess on a side surface of the core.

The inner surface of the frame may be concave shaped and an edge of the core may be convex shaped. The inner surface of the frame may include an extrusion configured to fit into a recess on the edge of the core. The edge of the core may comprise a soft material different from other parts of the core.

The inner surface of the frame and/or an edge of the core may include an adhesive. The edge of the core may include the adhesive and the adhesive may be covered by a tape before use.

The frame may include two or more holes, and a side surface of the core may include two or more pegs configured to insert into the two or more holes.

The frame may be height adjustable. The frame may be height-adjustable to a first height and a second height, and a first core that is configured to fit the frame at the first height of the frame may have a lower thickness than a second core that is configured to fit the frame at the second height of the frame.

The frame, when in the open configuration, is detached from the handle, and, in the close configuration, is attached to the handle. The core may be further attached to the frame with screws. In the closed configuration, a first end of the frame and a second end of the frame may be inserted into the handle.

In the closed configuration, the frame may be attached with screws to the handle or may be attached with a latch.

The frame may be fixedly attached to the handle in the open configuration and the close configuration, and a first part of the frame may be movable along rails to separate a second part of the frame and the second part. In the close configuration, the first part of the frame and the second part of the frame are connected by fasteners.

The frame may be fixedly attached to the handle on a first end of the frame and removably attached to the handle on a second end of the frame. The second end may be disconnected for the open configuration by removing a screw connecting the second end to the handle. The second end may be connected, in the close configuration, to the handle by a screw.

The core may comprise a plurality of holes arranged to reduce air drag, the core may comprise a honeycomb core layer, the core may comprise a first layer formed with a first material and a second layer formed with a second material having material characteristics different from the first material, or the core may comprise a plurality of first magnets and the face sheet may comprise a plurality of second magnets configured to pair with the first magnets.

The core may comprise a plurality of recesses and the face sheet comprises a plurality of extrusions configured to fit the recesses. The core may further comprise interlocking connectors configured to fit interlocking connectors arranged on the face sheet, connectors configured to pair with connectors arranged on the face sheet, or the face plate may be configured to be attached to the striking surface using a semi-permanent glue.

The thickness of the frame may be non-uniform, the frame may comprise a plurality of recesses configured to receive custom weights, the frame may comprise a plurality of recesses or compartments configured for rubber/gel inserts, the frame may comprise outer edges formed with a high-strength material different from a material in another part of the frame, and the frame may comprise a plurality of holes.

The handle may comprise a handguard configured to, when fingers of a player are wrapped around the handle, shield the fingers from external impact.

The handguard may be detachable. One side of the handguard may be detachable.

At least one end of the handguard may be molded into or may be integrated with the handle. The handguard may include integrated lighting or storage.

BRIEF DESCRIPTION OF THE DRAWINGS

Some features are shown by way of example, and not by limitation, in the accompanying drawings. In the drawings, like numerals may reference similar elements.

FIG. 1A shows an example pickleball court, in which embodiments of the present disclosure may be applied.

FIG. 1B shows another view of a pickleball court.

FIGS. 2A and 2B show examples of conventional pickleball paddles.

FIG. 3 shows example pickleball paddle specifications according to the United States Pickleball Association.

FIG. 4A illustrates a pickleball paddle with a replaceable core according to some embodiments of the present disclosure.

FIG. 4B illustrates a cross-section view of a part of a pickleball paddle, such as, for example, the paddle in FIG. 4A, according to some embodiments.

FIG. 4C illustrates another pickleball paddle with a replaceable core according to some embodiments.

FIG. 4D illustrates another example fastener that may be used to latch two parts of the frame of a pickleball paddle with a replaceable core according to some embodiments.

FIG. 5A and FIG. 5B illustrate cross-section views of a pickleball paddle having adjustable height that can accommodate replaceable cores of different thicknesses, according to some embodiments.

FIG. 6, FIG. 7, FIG. 8, FIG. 9A, FIG. 9B, FIG. 9C and FIG. 9D illustrate further examples of pickleball paddles with replaceable cores, according to some embodiments.

FIG. 10 illustrates another pickleball paddle with a replaceable core according to some embodiments.

FIG. 11 illustrates another pickleball paddle with a replaceable core according to some embodiments.

FIG. 12 illustrates another pickleball paddle with a replaceable core according to some embodiments.

FIG. 13 illustrates another pickleball paddle with a replaceable core according to some embodiments.

FIG. 14A, FIG. 14B, FIG. 15-19 illustrate cross section views of parts of example pickleball paddles with replaceable cores according to some embodiments.

FIG. 19 shows example replaceable cores, according to some embodiments.

FIG. 20 illustrates example replaceable paddle cores some which are configured with hole patterns to reduce air drag according to some embodiments.

FIG. 21 illustrates an example cross-section view of a replaceable core according to some embodiments.

FIG. 22 illustrates an example pickleball paddle and replaceable face sheet according to some embodiments.

FIG. 23 illustrates an example pickleball paddle and replaceable face sheet according to some embodiments.

FIG. 24 illustrates an example pickleball paddle and with a hand guard according to some embodiments.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the disclosure. However, it will be apparent to those skilled in the art that the disclosure may be practiced without these specific details. The description and representation herein are the common means used by those experienced or skilled in the art to most effectively convey the substance of their work to others skilled in the art. In other instances, well-known methods, procedures, and components have not been described in detail to avoid unnecessarily obscuring aspects of the disclosure.

References in the specification to “one embodiment,” “an embodiment,” “an example embodiment,” etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

This disclosure relates to “Pickleball,” a game that has in recent years seen a massive increase in popularity among all age groups of players, including among senior citizens. Pickleball is a game that can be described as combining aspects of tennis, badminton, and ping-pong. It is played on a badminton-sized court, with paddles and a ball similar to a wiffle ball, but slightly smaller in size. The net used in pickleball is similar to a tennis net in some ways, but is lowered at the center.

Pickleball has recently become very popular and is played both indoors and outdoors, as either doubles or singles. The rules are relatively simple and the game is easy for beginners to learn. However, among skilled players, pickleball can develop into a quick, fast-paced, and competitive game.

FIG. 1A shows an example pickleball court 100 that includes a pickleball playing surface 130 and a pickleball net 132. The playing surface 130 comprises two left serve areas 102 and 108, two right serve areas 104 and 106, and two non-volley areas 110 and 112, with one of the left serve areas, one of the right serve areas, and one of the non-volley areas being on each side of the pickleball net 132. The net is 36 inches tall at the edges, and lowered to 34 inches in the middle. The areas 102-112 are defined by baselines 118 and 120 each 20 feet, sidelines 114 and 116 each 44 feet, center lines 122 and 124 each 15 feet, and non-volley lines 126 and 128 each the same size as a baseline. Each of the lines may be 2 inches wide. The term “court line” is used in this disclosure to refer to any sideline, baseline, centerline or non-volley line on the pickleball court. Non-volley areas 110 and 112, each extending 7 feet from the net, are also referred to as the “kitchen”.

The game of pickleball is played with a pickleball paddle 134 and pickleball ball 136. The ball 136 is typically made of plastic and has a 3-inch diameter. Similar to a wiffleball, the ball 136 has through holes throughout the surface. Different types (e.g., with different levels of hardness and different sizes of the through holes) may be used for playing the game on the various types of pickleball courts (e.g., indoor, outdoor, hard surface, soft surface etc.).

Pickleball can be played as singles or doubles, and is most commonly played as doubles. Each point begins with an underarm serve. The serve is performed diagonally beginning at the right-hand service square. A valid serve sends the ball from one left serve area to the other left serve area or from one right serve area to the other right serve area. The serve must clear the non-volley-zone. The serve must bounce before being hit by the receiver. The return of serve must also bounce before being hit (this is known as the 2 bounce rule). After the serve and the return of the serve, the ball can land anywhere on the opposite side of the playing surface 130. Volleys can only be performed outside of the non-volley zone. Volleys, that is, hitting the ball in the air without first letting it bounce, can only be made after the 2 bounce rule has been followed. However, if the ball is hit from within the kitchen, then it cannot land in the kitchen on the other side of the net.

A fault is any action that stops play due to a rule violation. A fault by the receiving team results in the servers earning a point. A fault by the serving team results in the server's loss of service and/or side out. A fault is committed when the serve touches any part of the non-volley zone (including the line) or the ball is hit out of bounds.

Pickleball games are typically played without a referee and are self-judged. Each player makes the line calls as to whether the ball is in or out when the ball contacts the playing surface on that player's side. The game continues to at least 11 points and requires a 2-point difference for a win. FIG. 1B shows another view of a pickleball court.

A conventional pickleball paddle is shown in FIG. 2A. In some example embodiments, as shown for example in FIG. 2A, a pickleball paddle 200 may comprise a striking blade 202 and a handle 204 connected to the striking blade. A grip 206 may wrap around a portion of the handle 204 and may comprise of a material that is more comfortable and/or provides better control of the paddle. The grip 206 is the portion of the handle that is intended to be held by the player during play (e.g., to strike and return a ball during play). The striking blade 202 comprises two striking surfaces 203, a core sandwiched between the striking surfaces, and, optionally, a frame (also referred to as an edge) 208 surrounding the striking surfaces 203. A striking surface 203 may also be referred to as a face of the striking blade 202 and is intended to be the portion of the striking blade 202 with which to strike the pickleball ball. During a pickleball game, based on the ball position and/or player position on the pickleball court, the player may use either the front face or the back face of the striking blade (e.g., corresponding to the front and back of the pickleball paddle, respectively) for any shot. The core of the striking blade may be constructed from materials such as, for example, hardened rubber, plastic, rubber/plastic compound, polymer, aluminum, honeycomb composite, etc., The striking surface 203 may comprise one or more layers of materials such as, for example, hardened rubber, plastic, rubber/plastic compound, fiberglass, carbon fiber, graphite, etc., that are conducive to striking/returning the pickleball ball and/or controlling the behavior of the ball. The striking surface 203 may be configured with a particular hardness (e.g., using the same or different material or material combination as in the rest of the striking surface) in an area referred to as “sweet spot” intended to provide the primary area of contact with the pickleball. The frame 208 may be constructed with a wood, plastic and/or hard rubber or compound thereof to encompass and provide support to the striking surface. The frame 208 may be integrated with or connected to the handle 204 at a connection area (also referred to as a connection part or connection point). The handle 204 may be the lower portion of a part/member (e.g., constructed of the same or different material(s) as the handle 204) that extends to the top of the striking blade (e.g., to the frame 208 at the top of the striking blade) or part way through the middle/core of the striking blade, and may be integrated/connected with the frame 208 in the connecting area (connecting part).

In a conventional pickleball paddle such as that shown in FIG. 2A, the entire paddle has the same center axis. That is, a center axis of the striking blade 202 and the center axis 212 of the handle 204 are parallel and are aligned with each other. Some pickleball paddles may include a butt cap 205 affixed to the bottom of the handle 204.

FIG. 2B shows two examples of commonly available pickleball paddles. The example pickleball paddle on the left side has a more elongated striking blade than the example paddle on the right side, providing a larger striking surface. Both example pickleball paddles in FIG. 2B, similar to that in FIG. 2A, has an edge that is of a concave shape on either side (left and right) of the handle and then curves upward before extending up in a straight line. In each example paddle shown in FIG. 2B the center axes (not shown in FIG. 2B) of the striking blade and the handle are the same.

FIG. 3 shows example pickleball paddle specifications and standards according to USA Pickleball—the United States Pickleball Association. The current USA Pickleball specifications require that the combined length and width of a pickleball paddle cannot exceed 24 inches. The illustrated example paddle specification shows a paddle shape that can provide for a total length (handle and striking blade) of 15.5″-17″ inches and a width of 7″-8.25″. The paddle length may not exceed 17 inches (43.18 cm). Not mandated by USA Pickleball, but illustrated in FIG. 3 for an example pickleball paddle, are a thickness of 0.5″-0.625″ of the striking blade, a thickness of 1.25″ at the bottom of the handle, and a length of 4″-5.5″ of the handle. The side profile view at the bottom of the figure illustrates the profile view from the long side of the example paddle, and the side profile view shown on the right illustrates the profile view from the top-side of the paddle.

In the specification, the handle is an extension of the paddle face and may not exceed 5 inches (12.7 cm) in length, and the handle must be an integral part of the paddle face. It should not have any separate components or extensions beyond the permitted length. The handle should have a smooth surface without any protrusions, attachments, or features that could cause injury to players or interfere with gameplay. The handle, like the rest of the paddle, must be constructed of approved materials. Common materials include wood, composite materials, or graphite.

Pickleball paddles can quickly deteriorate in their performance and usability for effective play over time and/or continued use. Wear and tear due to regular play can result in pickleball paddles requiring replacement in months. Excessive wear and tear can be detected in several aspects of the paddle: visible signs of wear and tear, such as cracks, tears, or discoloration; reduced cushioning in the grip; decreased grip quality, making it difficult to maintain a firm grip; chipped edges, which can affect performance if they start to get close to the paddle face; a smooth paddle face, which can significantly affect grip and game; cracked frame; loss of power or pop in shots; a weakened handle where it joins the face; an obvious warp across the paddle face; a lack of spin on shots that usually have spin; and something rattling inside the paddle, are some of the symptoms that are indicative of the paddle requiring replacement.

Pickleball paddles are relatively costly. Example factors affecting paddle prices may include: designs absorbing vibrations/vibration dampening; materials used in making the pickleball paddle (e.g. graphite, carbon fiber, foam, wood, composite, fiber glass); manufacturing processes such as thermoforming in contrast to cold press technologies; handle; surface sheets; edge guards; and performance parameters such as, for example, design, aerodynamic properties, and paddle core design.

High quality pickleball paddles are expensive. Pickleball paddles need to be replaced after frequent use. For example, some professional pickleball players, say they usually replace paddles every two tournaments. Some players change their paddles after a few months of frequent use. The paddle face can be damaged easily due to humidity, sun, impact, etc. The cost of pickleball paddles can be a burden to average pickleball payers. There is a need to reduce the cost of buying new pickleball paddles without reducing the quality of pickleball paddles.

Example embodiments of the present disclosure provide pickleball paddles with replaceable cores, replaceable face sheets and/or hand guards. Pickleball paddles according to some embodiments may provide a paddle structure that includes the frame and the handle, and a replaceable core. The replaceable core enables the user to change only the striking blade portion without having to discard the rest of the paddle. In some examples, the replaceable core includes top and bottom face sheets, and a core layer sandwiched between the top and bottom face sheets. Replaceable face sheets enable users to merely swap out worn or damaged face sheets for newer face sheets without having to replace the entire paddle or the core. Users may choose to replace only the core layer, one or both the face sheets, or the core and face sheets. Some embodiments, provide handguards for protection for fingers, knuckle etc. Some embodiments may provide pickleball paddles with one or more of the features: replaceable cores, replaceable face sheets, and hand guards.

FIG. 4A illustrates a pickleball paddle 407 with a replaceable core according to some embodiments of the present disclosure.

The pickleball paddle 407 comprises a paddle structure that includes a paddle frame 408 and a handle 404, and a replaceable (detachable/removable) core 402. In this embodiment, the frame 408 is configured to accommodate a circular-shaped replaceable core 402. In FIG. 1, the top left shows an example paddle structure without a replaceable core, the top right illustrates an example replaceable core, the bottom right illustrates the paddle structure with the frame opened, and the bottom left illustrates the paddle structure with the replaceable core 402 inserted in the frame 408.

As shown in the bottom right illustration, the frame 408 is configured to be opened in order to enable convenient removal and/or installation of the replaceable core 402. Example embodiments provide for installing the replaceable core without use of force that can damage the frame and/or core. More specifically, in some embodiments, the frame 408 can be opened to a sufficient degree to enable the insertion of the replaceable core 402 without imposing a high level of force. Imposing force when inserting, as it would likely be required if the frame is not opened or not opened to a sufficient degree, can result in damage to the replaceable core structure and/or the frame structure.

In this embodiment, the frame can be opened at an opening point 405 in the circular part of the frame. When the frame is opened at the opening point (e.g., the frame is in open configuration), then one end 412 of the frame separates from another end 416 of the frame. At the opening point (e.g., point at which ends 412 and 416 are in contact with each other when the frame is closed or fully connected) 405, the two ends 412 and 416 of the frame are held in contact with each other by the force of a fastener (e.g., lock, latch or clip) 417. When the fastener 417 is closed, then the frame 408 is in closed configuration with the two ends 412 and 416 joined together (abutting each other) at the opening point, and when the fastener 417 is opened, then the frame 408 is in open configuration with the two ends 412 and 416 separated sufficiently to enable insertion and/or removal of the replaceable core 402.

In the illustrated embodiment, the frame is held together, or joined, at the opening point 405 by the fastener 417, in this instance a latch, that includes a first latch part 413 and a second latch part 415. In the illustrated embodiment, the first latch part 413 is a hook formed on or attached to the outer surface and/or the side surfaces of the frame 408. The second latch part 415 is a lever that is configured to attach on to the hook and then be rotated or pulled to clamp together the two parts 413 and 415 of the latch 417. In this embodiment, the first latch part 413 is formed on or attached to the frame at the first end 412 of the frame and the second latch part 415 is formed on or attached to the frame at the second end 416 of the frame. The frame 408 may be opened by manually maneuvering the second latch part 415 (e.g., the lever part) to release a firm clamp on the first latch part 413 (e.g., the hook), and can be closed by manually maneuvering the second latch part 415 to fully engage the firm clamp on the first latch part 413. The fastener 417 is not limited to the illustrated latch, and can include any type of latch or clamp mechanism that can firmly hold the two ends of the frame 408 together and has a sufficiently-low profile that does not interfere with playing the game of pickleball.

The illustration on the bottom left shows the paddle with the replaceable core 402 attached firmly to the paddle frame 408. When the frame 408 is opened at the opening point 405 by operating the fastener 417, a spacing 414 may be formed between two ends 412 and 416 of the frame. The opening of the frame at least loosens the frame 408 so that the replaceable core 402, if it was already attached within the frame (as in 413), can be removed from the frame 408, or if it was not attached to the frame, can be placed within the frame before closing and engaging the fastener 417. When the frame is closed (i.e., the two ends 412 and 416 are connected) and latched (e.g., after closing, latching/clamping to make the connection firm or stable), the replaceable core 402, including the core and the face sheets, is stably and firmly connected to the frame 408.

The replaceable core 402 may comprise a front surface (e.g., front face sheet) and a back surface (e.g., back face sheet) and a core layer sandwiched between the front surface and the back surface. The front surface, core layer and the back surface, or in some embodiments, only the core layer, may be surrounded by a firm perimeter (rim) 401. The rim 401 may be formed from the same materials as the honeycomb layer and/or the face plates, but can alternatively be formed from a different material, in a manner that the perimeter (sides, including the side surface of the replaceable core) of the replaceable core 402 is sufficiently hard or firm to be able to firmly abut the inner surface of the frame 408.

The rim 401 of the replaceable core 402 and the inside surface of the frame 408 may be configured to firmly hold the replaceable core 402 firmly and stably connected to the frame 408. In some embodiments, the inside surface of the frame 408 and the outer surface of the rim 401 may have paired configurations for one to connect to the other. For example, the inner surface of the frame may have a recess (groove) running the length of it or in a continual or staggered manner such that one or more extrusions (may also be referred to as extensions or jut outs) configured on the outer surface of the rim 401 can be fitted into the recesses (groove/grooves) on the inner surface of the frame 408. In another embodiment, the inside surface of the frame 408 and the outer surface of the rim 401 may each have both recesses and extrusions such that recesses and extrusions of one can be matched with extrusions and recesses of the other.

FIG. 4B illustrates a cross-section view of a part of the pickleball paddle illustrated in FIG. 4A, according to some embodiments. In the illustrated embodiment, the outer surface of the replaceable core 402 includes a recess (groove) 419 to which an extrusion (jut out) 418 on the inner surface of the frame 408 fits in. The frame 408 may include a top holding part 407 and a bottom holding part 409 that extend from the inner surface of the frame such that the replaceable core 402 can be fitted-in between the top holding part and the bottom holding part of the frame. Thus, when the replaceable core 402 is connected (removably connected) to the frame 408 and the recess(es) (groove(s)) on the outer surface of the rim 401 of the replaceable core 402 is/are engaged with the extrusion(s) (jut out(s)) on the inner surface of the frame 408, the top holding part and the bottom holding part provide additional support for the replaceable core to be held firmly and sturdily in-place.

FIG. 4C illustrates another pickleball paddle with a replaceable core according to some embodiments. The replaceable core 422 may be similar or identical to the replaceable core 402 described in relation to FIGS. 4A and 4B, and the frame 428 and handle 424 may be similar or identical to the frame 408 and handle 404 described in relation to FIGS. 4A and 4B except for the fastener 437 at the opening point 425 on the frame. In this embodiment, the fastener comprises a recess (cutout or shaped groove) 433 with its opening on the outer surface of the frame at one end 432 of the frame and a recess (cutout or shaped groove) 435 with its opening on the inner surface of the frame at the other end 436 of the frame such that respective extrusions formed in connection with each recess 433 and 435 at each end of the frame are each configured to fit in to the other recess to form a firm interlocking connection at the opening point 425. In some embodiments, the frame 428 may include a second fastener, such as, for example, the latching mechanism, described in relation to FIG. 4A, at the opening point 425 to provide additional firmness to the connection between the two ends 436 and 432 of the frame 428.

FIG. 4D illustrates another example fastener that can be used in example embodiments of the present disclosure.

A pickleball paddle frame 448 is configured to be opened at an opening point in order to enable the insertion and removal of a replaceable core such as, for example, the replaceable core 402. A slidable fastener 451 with a retracting extrusion 453 is attached to a frame 448 at one end 452, and a corresponding recess 455 is formed on the outer surface of the frame 448 at the other end 456. The retracting extrusion 453 and the recess 455 are each shaped to be vertical in the direction of one end 452 of the frame 448 and angled/sloped in the direction of the other end 456. The recess 455 is configured to fit the extrusion 453. When the retracting extrusion 453 is in the recess 455, the frame 448 is firmly held together by the vertical wall of the retracting extrusion pushing against the vertical wall of the recess.

The body of the slidable fastener 451 can be moved back and forth over the opening point 457. In order to open the frame when the retracting extrusion 453 is in the recess 455, the slidable fastener 451 is first pushed in the direction opposite to the opening point 455 to remove the retracting extrusion from the recess, and thereafter moving the slidable fastener in the opposite direction to enable separation of the two ends of the frame 458. The frame end with the recess 455 may be held down or another technique may be used so that the retracting extrusion does not engage in the recess 455 while it is being moved in the opposite direction. The retracting extrusion may be spring-loaded so that it can retract to a space within the body of the slidable fastener and can automatically engage the recess 455 when moved above the recess.

The slidable fastener 451 and the retracting extrusion 453 may be made with plastic, rubber or metal and may be mounted on the frame 448 with spring-loadings and/or railings to facilitate the operation described.

FIGS. 4A-4D described certain example pickleball paddles with replaceable cores that are inserted and removed by opening the frame of the paddle, according to some embodiments. Embodiments are not limited to the paddle or paddle frame shapes, replaceable core shapes, construction materials, or the types of fasteners described in relation to FIGS. 4A-4D.

FIG. 5A and FIG. 5B illustrate cross-section views of a pickleball paddle having adjustable height according to some embodiments.

The replaceable core 502 shown in FIG. 5A is thicker than the replaceable core 502 shown in FIG. 5B. The thicker replaceable core 502 may enable the core layer to be stronger, and/or one or both the face sheets to be thicker. The thinner replaceable core 522 may enable reduced weight of the paddle.

In the embodiment illustrated in FIGS. 5A-5B, the frame is height-adjustable to accommodate, for example, the thicker replaceable core 502 or the thinner replaceable core 522. The frame 508 may comprise an upper frame part 507 and a lower frame part 506 of the same shape as the upper frame part 507 and that fits inside the upper frame part 507 with its outer wall being flush with the inner wall of the upper frame part 507. The height may be adjusted by pulling in opposite directions (for more height) or pushing in the same direction (for more height) the lower frame part 506 and the upper frame part 507. The frame may be height-locked at least at two heights such as the height required for fitting in the thinner replaceable core 522 and the height required for the thicker replaceable core 502.

The fastener that locks the upper and lower frame parts at least the two height positions may be a “push down to unlatch” type of latch that disengages the latch in response to the upper and lower frame parts 506 and 507 being pushed against each other. For example, a retractable extrusion 509 formed on one side of the outer surface of the lower frame part 506 may be configured to fully extend and pop-out of either of two shaped holes formed on the side of the outer frame part 507. The two shaped holes may be formed at the two heights of replaceable cores 502 and 522 desired to be held by the frame 508. The extrusion may be shaped so that the extrusion can be disengaged from a hole by pushing the two frame parts together or apart.

In some embodiments, a height-adjustable frame's height can be adjusted for various replaceable core thicknesses, e.g. 13 mm, 14 mm, 16 mm, 20 mm. The replaceable cores described in FIGS. 5A-5B include the core layer and the top and bottom face sheets.

FIG. 6 illustrates a pickleball paddle with a replaceable core according to some embodiments. In the paddle 607 shown in FIG. 6, the paddle structure includes the frame 608, handle 604 and also the paddle throat 603. In this embodiment, the throat area 603 is not part of the replaceable core 602 and is permanently attached to the paddle structure.

As in the paddle shown described in relation to FIG. 4A, the frame 608 of paddle 607 can be opened or closed by manipulating a latch 617. The latch 617 is similar to latch 417 and comprises a first latch part 613 attached at one end 612 of the frame and a second latch part 615 at the other end 616. When the frame 608 is open, a separation 614 between the two frame ends 612 and 616 can be obtained, enabling the insertion or removal of the replaceable core 602. When inserted, the rim 601 of the replaceable core may firmly abut the inner surface of the frame 608, optionally in a groove configured to the inner surface.

FIG. 7 illustrates a pickleball paddle with the throat portion also as part of the replaceable core.

The paddle frame 708 of the paddle 707 is configured to be opened in order to insert or remove the replaceable core 702. However, the frame 708 is opened by disengaging/releasing one end 712 of the frame that is engaged/held inside of the handle 704. The disengaging/releasing includes releasing a latch 717. The latch 717 includes a first latch part 713 attached to the frame end 712, and a second latch part 715 attached to the handle 704.

FIG. 8 illustrates a pickleball paddle according to some embodiments in which the frame is completely detachable from the rest of the paddle structure (e.g., in the illustration, the handle 804).

The frame 808 is removably attached to the handle 804 by inserting the ends 812 and 816 into the handle 804 and securing the ends 812 and 816 to the handle 804 at two or more positions by removable screws 813 and 815. In some embodiments, instead of or in addition to screws, paired interlocking extrusions and recesses may be configured on the outer surface of the frame ends and the inner surface of the handle.

The inner surface of the frame and/or the edge of the replaceable core may be configured to firmly and securely connect the replaceable core to the paddle structure. For example, one or more techniques described in relation to FIGS. 14A-19 may be used. In some examples, additionally or alternatively, a plurality of screws may be used to securely hold the replaceable core firmly connected to the frame. For example, the frame may include two or more holes 820 through which screws 821 can be driven to hold the replaceable core in connection to the frame.

FIG. 9A and FIG. 9B illustrate pickleball paddles in which the frame is configured for being loosened but does not completely detach from the rest of the paddle structure.

In the paddle shown in FIG. 9A, two latches 917 and 917′ arranged on either side of the frame 908, at opening points 905 and 905′.

Disengaging a first latch part 913 from a second latch part 915 unlatches latch 917, and similarly disengaging a first latch part 913′ from a second latch part 915′ unlatches latch 917′. Unlatching both latches 917 and 917′ enables the frame 908 to be separated into two parts, but the two parts of the frame remains connected by extensions 914 and 914′. The extensions 914 and 915 may be railings along which the top part of the frame can be pulled away from the bottom part of the frame. A spring load mechanism may operate to pull the frame to the unextended position. In some embodiments, the frame 908 may be configured to accommodate at least two replacement core sizes (e.g., normal size and elongated size).

In the paddle shown in FIG. 9B, two latches 937 and 937′ arranged on either side of the frame 928, at opening points 925 and 925′.

Disengaging a first latch part 933 from a second latch part 935 unlatches latch 937, and similarly disengaging a first latch part 933′ from a second latch part 935′ unlatches latch 937′. Unlatching both latches 937 and 937′ enables the frame 928 to be separated into two parts, but the two parts of the frame remains connected by extensions 934 and 934′.

FIG. 9C illustrates a pickleball paddle according to some embodiments in which a portion of the frame is part of the replaceable core. For example, the top part 948′ of the frame (e.g., top half) is integrally attached to the replaceable core 942. The paddle structure comprises the bottom part (e.g., bottom half) 948 of the paddle fame that is integrally connected to the handle 946. The two parts 948 and 948′ of the frame are connected/attached to each other by engaging a latch 957. A first latch part 953 of latch 957 is attached to the frame part 948′ and a second latch part 955 of latch 957.

FIG. 9D illustrates two further example pickleball paddle structures similar to that of FIG. 9C. The paddle structure shown in the left includes a bottom half 968 of the frame, a handle 966, a throat part 963, and a second latch part 975, configured to accommodate a circular-shaped replaceable core that is integrated with a top half of the frame.

The paddle structure shown in the right includes a bottom half 988 of the frame, a handle 986, a throat part 983, and a second latch part 995, configured to accommodate a substantially rectangular-shaped replaceable core that is integrated with a top half of the frame.

FIG. 10 illustrates another pickleball paddle with a replaceable core according to some embodiments. In the paddle illustrated in FIG. 10, the paddle frame is opened and closed by the operation of a screw.

For example, the paddle can be opened at an opening point 1005 on the frame 1008. The paddle structure includes the frame, the throat area 1003, and the handle 1006. Opening the frame at the opening point 1005 allows for one part 1012 of the frame is separated 2014 from another part 1016 of the frame. To close the frame 1008, the one part 1012 is secured to the other part 1016 of the frame by a securing screw 1015.

FIG. 11 illustrates another pickleball paddle with a replaceable core according to some embodiments. In this embodiment, the frame is connected to the sides of the paddle's handle, and to loosen the frame 1108, one end 1112 of the frame is disconnected from the handle 1106. In the illustrated embodiment, the loosening is achieved by unscrewing a securing screw 1115.

FIG. 12 illustrates another pickleball paddle with a replaceable core according to some embodiments. In the illustrated embodiment, two ends 1216 and 1217 of the frame 1208 are attached to the handle 1206 by attaching to a removable handle bottom 1207. For example, inserting the two ends 1216 and 1217 of the frame into the handle 1206 at the top opening of the handle 1206 and inserting the threaded member attached to the handle bottom (e.g., handle butt) 1207 and, then turning the frame and the threaded member in relation to one another attaches the frame to the rest of the paddle structure. Alternatively, the threading to which the frame attaches can be formed within the handle, not necessarily connected to the handle butt. Having the threading connected to the handle butt, however, allows for loosing or releasing the frame for opening by turning the handle butt.

FIG. 13 illustrates another pickleball paddle with a replaceable core according to some embodiments in which the frame is detachable from the rest of the paddle structure. In this embodiment, the frame 1308 is fully detachable from the handle 1306. For example, the two ends 1316 and 1312 of the handle may be inserted into slots formed on the inside wall of the handle and locked in place by one or more screws. In some embodiments, the outer sides of the fame ends 1316 and 1312 may have threads that lock into threads from the internal wall of the handle.

The frame 1308 has one or more openings 1313 configured on the left and the right such that extrusions 1315 on the replaceable core 1302 can snugly fit into the one or more openings 1313. The opening may be used as an inter-locking mechanism for firmly attaching a the replaceable core to the paddle frame. Additionally, the number and size of the openings may help reduce the weight of the handle.

FIG. 14A and FIG. 14B illustrate a cross-section view of a replaceable core 1402 fitting into a frame 1408. In the illustrated schematic, the inner surface 1426 of the frame 1408 is concave shaped to accommodate the convex shaped side surface 1427. When the frame is fully connected with the replaceable core inside the frame, the sides 1427 of the replaceable core fit snugly and firmly against the concave inside surface 1426 of the frame. The concave shape of the frame's inner surface, the corresponding the convex shape of the side surfaces of the replaceable core, and the sizing of the frame and the replaceable core for a tight fit, provide for the replaceable core to stay firmly connected to the paddle structure during play. In some examples, a semi-permanent glue on the sides of the replaceable core and/or the frame's inside surface can further facilitate the firm and durable connection of the replaceable core to the paddle structure. Since example embodiments enable the paddle frame 1408 to be opened so that the replaceable core can be inserted without forcing the replaceable core into its resting location, damage to the edges of the concave inner wall of the frame and to the sides of the replaceable core that could occur if the replaceable core was force inserted into its location is avoided.

FIG. 15-18 illustrate cross-section views of further pickleball paddles with replaceable cores according to some embodiments. FIG. 15 illustrates a frame 1508 with its inner surface 1526 concave-shaped and also including an extrusion 1528. The replaceable core 1502 has sides 1527 that are convex-shaped and has a recess 1529. When the replaceable core 1502 is placed in the frame 1508 and the frame is fully connected to the rest of the paddle structure, the sides 1527 of the replaceable core are flush against the concave inside surface 1526 of the frame 1502 and the extrusion 1528 fits into the recess 1529 to hold the replaceable core firmly against the frame. The additional support provided by the extrusion 1528 and corresponding recess 1529 contributes to the firmness of the replaceable core within the frame. Since example embodiments enable the paddle frame 1508 to be opened so that the replaceable core can be inserted without forcing the replaceable core into its resting location, damage to the edges of the concave inner wall of the frame, to the sides of the replaceable core, or to the extrusion 1528 that could occur if the replaceable core was force inserted into its location is avoided.

FIG. 16 illustrates a frame 1608 with its inner surface 1626 extended at the top and bottom ends so that sides 1527 of the replaceable core 1602 can fit between the top and bottom ends of the frame. The inside surface 1626 includes at least one extrusion 1628 that is configured to snugly fit into a recess 1629 formed on the sides 1627 of the replaceable core 1608. When the replaceable core 1602 is placed in the frame 1608 and the frame is fully connected to the rest of the paddle structure, the sides 1627 of the replaceable core are flush against the inside surface 1626 of the frame 1602 and the extrusion 1628 fits into the recess 1629 to hold the replaceable core firmly against the frame. The extrusion 1628 provides added support for holding the replaceable core firmly against the frame. Since example embodiments enable the paddle frame 1608 to be opened so that the replaceable core can be inserted without forcing the replaceable core into its resting location, damage to the top and bottom edges of the inner wall of the frame, to the sides of the replaceable core, and to the extrusion 1628 that could occur if the replaceable core was force inserted into its location is avoided.

FIG. 17 illustrates a frame 1708 with its inner surface 1726 extended at the top and bottom ends so that sides 1727 of the replaceable core 1702 can fit between the top and bottom ends of the frame. However, the top and bottom surfaces of the replaceable core 1702 are flush with the frame at the top and bottom striking surface. The inside surface 1726 of the frame 1708 includes an extrusion 1728 in the center, and the extrusion forms recesses on either side between it and the top or bottom extensions of the inner surface. The side 1727 of the replaceable core 1702 is shaped to fit snugly against the inner surface 1726 of the frame 1708. When the replaceable core 1702 is placed in the frame 1708 and the frame is fully connected to the rest of the paddle structure, the sides 1727 of the replaceable core (including the face sheets) are flush against the inside surface 1726 of the frame 1702 and the extrusion 1728 fits into the recess 1729 to hold the replaceable core firmly against the frame. The extrusion 1728 provides additional support for holding the replaceable core firmly against the frame. Moreover, having the top and bottom edges of the frame flush with the surfaces of the replaceable core enables a larger striking surface. Since example embodiments enable the paddle frame 1708 to be opened so that the replaceable core can be inserted without forcing the replaceable core into its resting location, damage to the top and bottom edges of the concave inner wall of the frame, to the sides of the replaceable core, and to the extrusions 1728 that could occur if the replaceable core was force inserted into its location is avoided.

FIG. 18 illustrates a frame 1808 with its inner surface 1826 concave-shaped so that convex-shaped sides 1827 of the replaceable core 1802 can fit snugly against the sides of the frame. An extrusion 1828 on the frame inner surface and a corresponding recess 1829 on the sides of the replaceable core provide additional support for holding the replaceable core firmly against the frame. In this embodiment, the side portions 1830 of the replaceable core 1802 (e.g., the perimeter) are formed with a softer material than the rest of the replaceable core. The softer material may help in reducing vibration and/or impact that is felt by players when striking blade makes contact with a ball.

FIG. 19 shows example pickleball paddle cores, according to some embodiments. The figure shows two example replaceable cores 1908 and 1928. The replaceable cores 1908 and 1928 each has edges that have a layer of glue (e.g., semi-permanent glue). The glue is preserved by a tape 1909 and 1929 that is applied on top of the layer of glue. Before the replaceable core is used in a pickleball paddle, the tape 1909 and 1929 is removed. The glue helps the replaceable core to more firmly attach to the inside surface of the frame.

The configurations, described in relation to FIGS. 14A-19, of the inner surface of the frame and/or the sides/edges of the replaceable core to obtain a secure and firm connection between the frame and the replaceable core may be used individually or in various combinations in the embodiments described in relation to FIGS. 4A-13. In some examples, additionally or alternatively, a plurality of screws may be used to securely hold the replaceable core firmly connected to the frame. For example, the frame may include two or more holes through which screws can be driven to hold the replaceable core in connection to the frame.

FIG. 20 illustrates example replaceable cores according to some embodiments. The replaceable cores can be any one of several shapes. Illustrated replaceable cores 2002, 2022 and 2042 are a substantially rectangular replaceable core, a substantially rectangular replaceable core integrated with a throat area 2023, and a substantially circular replaceable core, respectively.

Illustrated replaceable cores 2012, 2032 and 2052 are a substantially rectangular replaceable core with holes (openings) arranged on two sides for air flow, a substantially rectangular replaceable core integrated with a throat area 2033 and with holes 2035 arranged on the two sides and holes 2034 arranged in the throat area 2033, and a substantially circular replaceable core with holes 2053 arranged on the two long sides, respectively. The holes 2013, 2035, 2034 and 2053 are configured to reduce air drag during play and are dimensioned to not affect the effective striking area of the striking blade. For example, the holes are sized so that a pickleball ball contacting the striking blade at or near one of the holes would behave substantially similarly to a ball that makes contact in another area of the striking blade.

FIG. 21 illustrates an example cross-section view of a replaceable core according to some embodiments. The replaceable core 2102 comprises a core layer 2130 sandwiched between a top face plate 2132 and a bottom face plate 2134. In some embodiments only face sheet(s) of the paddle core can be exchanged. In some example embodiments, only the core (honeycomb or other types of core layer) of the paddle core can be exchanged. In some embodiments, the core layer and the face sheets can be exchanged as a unit.

In some examples, the core layer may be formed from one or more of honeycomb, carbon fiber, fiberglass, plastic, and foam, and the face sheets may be made from one or more of carbon fiber, fiber glass, plastic, and Kevlar sheet. The frame and/or attachment of the replaceable core to the frame may be formed from one or more of foam, rubber, plastic, carbon fiber.

In some embodiments, a dual-material paddle core is provided. For example, the core layer may have two layers. Dual materials with different material characteristics may enable the replaceable core to be specifically configured for tradeoffs in rigidity vs. shock-absorbing capability, power and stability vs. control, or tunable performance. For example, dual materials enable the combining of a rigid outer core material (e.g., carbon fiber) with a shock-absorbing inner core (e.g., polymer foam). A rigid outer core may provide improved power and stability, while the inner core dampens vibrations for better control. Varying the thickness and composition of each material layer allows for customization of the paddle's stiffness and feel.

FIG. 22 illustrates an example pickleball paddle and replaceable face sheet according to some embodiments. Example replaceable face plate 2210 is configured to removably attach to frame 2208 of the paddle or a replaceable core 2202 fitted in the frame 2208. For example, a plurality of extrusions 2215 arranged on either side (e.g., left and right and/or top and bottom) of the replaceable face plate 2210 are configured to securely fit recesses 2213 in the replaceable core 2202 or frame 2208 arranged in a corresponding manner to the extrusions 2215. The bottom illustration shows paddle 2200 with the replaceable face sheet 2210 attached to the frame and/or replaceable core.

In some embodiments, alternatively, 2213 and 2215 may represent magnets that can securely attach to each other to hold the replaceable face sheet 2210 securely against the replaceable core.

FIG. 23 illustrates an example pickleball paddle and replaceable face sheet according to some embodiments. Example replaceable face plate 2310 is configured to removably attach to frame 2308 of the paddle or a replaceable core 2302 fitted in the frame 2308. For example, a plurality of extrusions 2315 arranged on either side (e.g., left and right and/or top and bottom) of the replaceable face plate 2310 are configured to securely interlock with extrusions 2313 in the replaceable core 2302 or frame 2308 arranged in a corresponding manner to the extrusions 2315. The bottom illustration shows paddle 2300 with the replaceable face sheet 2310 attached to the frame and/or replaceable core.

In some embodiments having a replaceable core and/or a replaceable face sheet, the face sheet(s) may be made of various materials such as, for example, graphite or fiberglass. The core layer may be constructed from, for example, polymer, aluminum honeycomb, or a combination of materials. The face sheets may have embedded magnets along the perimeter, and the core layer may have corresponding embedded magnets aligned with the face sheet magnets. The face sheets and core may securely attach through the strong magnetic attraction, and optionally a semi-permanent glue, creating a seamless paddle surface.

Alternatively, the face sheet(s) may have a series of interlocking tabs or grooves along its edges, and the core layer may have corresponding slots or ridges that perfectly match the face sheet's interlocks. With this configuration, the face sheet can snap securely onto the core layer with a confirming click, ensuring a firm connection.

In another embodiment, the face sheet(s) may have threaded holes around the perimeter, and the core may have threaded posts or inserts corresponding to the face sheet's holes. In this configuration, the face sheet can be screwed onto the core using small, lightweight screws, providing a strong and adjustable connection.

In some embodiments, a combination of two or more of semi-permanent glue, magnetic connectors, interlocking connectors, and threaded screw-on connectors, can be used for improved connection between the face sheets and the core layer and/or the frame of the pickleball paddle. The attachment mechanism should be strong and reliable to avoid the face detaching during play.

Replaceable face sheets, as provided in some embodiments, enable players to own multiple face sheet materials with different playing characteristics (e.g., spin, control, power, etc.) and easily swap them based on playing conditions or desired style.

Moreover, in some embodiments, the core layer and/or face sheets may include removable weight inserts, enabling players to adjust the paddle's weight to their preference. Detachable components, such as, for example, removable weights, connectors, etc., may affect the overall weight distribution and balance of the paddle.

Some embodiments include having frames of different thicknesses for desired paddle characteristics. For example, a non-uniform thickness frame can have a thicker profile at the top for power and stability, transitioning to a thinner profile at the bottom for improved maneuverability. Further, the frame could incorporate aerodynamic features such as, for example, channels or grooves to reduce air resistance during swings, potentially enhancing swing speed.

Some embodiments provide for the frame of the paddle to enable weight customization. For example, the design of the frame may enable the addition or removal of small weights within the frame structure in preconfigured recesses. This provides the benefit of personalized/custom weight such that players can adjust the paddle's weight to their preference and playing style. Fine-tuning weight distribution can optimize the paddle's balance point for better control.

In example embodiments, small, strategically placed rubber or gel inserts within the frame in preconfigured recesses or compartments could further reduce vibrations and improve shock absorption. Strategically placed holes in the frame could slightly reduce weight and potentially enhance the paddle's power through a trampoline effect.

In some embodiments, the paddle may include edge reinforcements. For example, some embodiments may include a thin layer of a high-strength material (e.g., Kevlar) along the edges of the frame, where the high-strength material is different from the material used in other parts of the frame. This may better protect the edges from chipping or cracking due to impacts. This may also provide improved sound dampening by reducing the noise produced on contact with the ball.

Some of the embodiments may include ergonomic handle integration. For example, the paddle frame may seamlessly integrate with the handle, eliminating the traditional “T-joint” connection. This may provide for improved comfort due to smooth transition between handle and frame reduces pressure points and enhances grip comfort, and optimized weight distribution for better balance and swing control.

The replaceable/detachable design of cores and/or face sheets according to some embodiments may facilitate easier repairs or replacements of individual components, extending the paddle's lifespan.

In pickleball doubles game, it is likely that one player hits the pickleball paddle to the fingers of the partner. For example, this may happen when both players of a team move the paddle to hit the ball. Some players wear gloves to protect their fingers from getting hit by a pickleball paddle. Wearing gloves is inconvenient and causes the hand to sweat during the game. FIG. 24 illustrates an example pickleball paddle and with a hand guard according to some embodiments. The hand guard may help protect the player's fingers or hand from getting hurt from being struck by a partner's paddle during doubles play and pickleball ball strikes during a game.

Pickleball paddle 2400 includes a handguard 2412 that is attached to the handle 2406 such that it extends over the length of the handle 2406. The handguard 2412 may be detachable on one side (e.g., near the frame or at the top of the handle). For example, a first part 2413 of a connector at the detachable end of the handguard may be configured to securely connect to one or more second parts 2415 of the connector arranged at or near the top of the handle.

In some embodiments, the handguard is a molded hand guard constructed from a rigid plastic or composite material for protection. As illustrated in FIG. 21, the handguard may clip or slide onto the paddle handle and secured with a locking mechanism. The molded handguard offers substantial protection against paddle strikes and injuries, and can be contoured for a comfortable and secure hand fit.

In some embodiments, the handguard is seamlessly integrated into the paddle's handle design. The handguard can be part of the paddle's frame/handle material or a separate component. Integrating the handguard into the frame/handle design may provide a streamlined and aesthetically pleasing look, and eliminate the need for separate attachment and enables a secure fit. It also provides potential for weight optimization and improved balance.

Some embodiments may include a strap-on hand guard that may be constructed from a lightweight, flexible material such as, for example, neoprene or padded fabric. A strap-on hand guard may be configured to securely strap around the handle and paddle base with adjustable Velcro or one or more buckles. This type of handguard provides protection for the hand and knuckles, and may be easy to install and remove.

Some embodiments may include an adjustable hand guard. For example, the hand guard may include an adjustable strap or mechanism to customize hand placement. This facilitates accommodating players with different hand sizes and grip preferences, and may enable two-handed backhand shots without interference. An adjustable hand guard may also prevent accidental drops of the paddle.

In some embodiments, the hand guard may be multi-functional. For example, the hand guard may incorporate additional functionalities such as, for example, a built-in wrist strap, storage compartment, or LED light. Such features may enhance player safety and convenience, and improve visibility in low-light conditions. In some embodiments, the handguard may include storage for small items like keys or a phone. Further, adjustable features or interchangeable components can cater to individual preferences.

In the above-described hand guards, the construction material is preferably lightweight, durable, and comfortable against the skin, the attachment is preferably secure and easy to use, even during gameplay. Moreover, the hand guard should not significantly affect the paddle's weight distribution or swing feel.

The above-described embodiments are illustrative and the disclosure is not limited to the described embodiments. In some further embodiments, features of some of the described embodiments may be combined with other embodiments.

Embodiments of the present disclosure provide for improved pickleball paddles. For example, by enabling the replacing of the core, the face sheets, or both core and face sheets, example embodiments provide for use of, and maintenance of a high level of performance of, pickleball paddles over a longer duration. In particular, example embodiments enable users to conveniently replace the core and/or face sheets without using force that can damage the core and/or the frame. Damage to the frame and/or core that results from forceful insertion of the core into the frame may result in unstable connection of the core to the frame and can drastically affect the performance of the paddle. Some embodiments further improve paddles by providing a handguard.

It should be noted that embodiments of the present disclosure are not limited to particular shapes of pickleball paddles or particular construction materials of the frame, core and/or face sheets. Although various embodiments have been shown and described in detail, the claims are not limited to any particular embodiment or example.