A pickleball paddle having a supercritical foamed material

Abstract

The application belongs to the field of sports equipment, and particularly relates to a pickleball bat with supercritical foaming material, which comprises a supercritical foam core plate, a foam layer plate is fixed on the side of the supercritical foam core plate, and the supercritical foam core plate is made of supercritical foam material. The supercritical foam core plate made of supercritical foaming foam material is used as the core bearing and energy rebound structure of the pickleball bat, the controllability of the ball is improved, the high shock absorption characteristics of the supercritical foaming foam material are used to improve the vibration attenuation efficiency when hitting the ball, reduce the hand fatigue and the risk of sports injury, the foam layer plate is located on the side of the supercritical foam core plate, the excellent shock absorption capacity and the elasticity of the material are used to adjust the ball speed and the shock absorption performance of the bat, so that the hand feeling during use is optimized and the sports performance is improved.

Description

Technical Field

[0001] This invention relates to the field of sports equipment, specifically a Peak racket with supercritical foaming material. Background Technology

[0002] In current technology, Peak rackets use an internal honeycomb core panel and an external mesh covering. When hitting the ball with a Peak racket, the ball hits the external mesh, and the ball's kinetic energy is transferred to the honeycomb core panel through the mesh. The honeycomb core panel absorbs part of the impact energy and cushions the impact, causing the ball to bounce back and hit the target.

[0003] Chinese invention patent CN119075285A discloses a novel Peak racket, comprising a racket body, which includes an integral racket face and handle. The racket face is sequentially bonded from the inside out with an inner multi-layer carbon fiber cloth layer, an inner non-woven fabric layer, a honeycomb plate layer, an outer non-woven fabric layer, an outer titanium wire mesh layer, another outer multi-layer carbon fiber cloth layer, and a surface carbon fiber layer. The edge of the racket face is edged, with the edge height not less than the height of the surface carbon fiber layer. Each of the inner multi-layer carbon fiber cloth layer, inner non-woven fabric layer, honeycomb plate layer, outer non-woven fabric layer, outer titanium wire mesh layer, outer multi-layer carbon fiber cloth layer, and surface carbon fiber layer extends a tongue towards the handle, and a retaining ring is fitted on the handle to fix the tongue. The handle is spirally wrapped with an anti-slip layer. The advantages of this invention are: novel structure; by adding a titanium wire mesh layer, the overall toughness of the racket face is increased, resulting in more powerful shots, less racket breakage, and improved product quality. However, during use, the material structure of the aforementioned honeycomb core board has poor uniformity, resulting in uneven rebound force applied to the ball, causing the ball's rebound direction to deviate and making the ball's release uncontrollable. Therefore, to address the above problems, a Peak racket with supercritical foaming material is proposed. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a Peak racket with supercritical foaming material.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: A Peak racket with supercritical foaming material, comprising a supercritical foam core board; a foam layer board is fixedly attached to the side of the supercritical foam core board; the supercritical foam core board is made of supercritical foam material; In use, a supercritical foam core board is employed as the core load-bearing and energy rebound structure of the Peak racket. The supercritical foam core board is made from supercritically foamed material, which possesses an extremely small and uniformly dense pore structure. This gives the core board excellent lightweight characteristics and a high resilience modulus. Furthermore, the uniform and dense pore structure significantly improves the uniformity of rebound force, effectively avoiding rebound deviations caused by minor local stiffness differences during impact, improving the controllability of the shot, and thus enhancing hitting accuracy and consistency of athletic performance. Additionally, the high shock absorption properties of the supercritical foam material improve vibration damping efficiency during impact, reducing hand fatigue and the risk of sports injuries. Moreover, the fatigue resistance provided by the microporous structure makes the structure less prone to damage, improving its durability. Lifespan; The foam layer covers the sides of the supercritical foam core board, and the grip is integrally molded from the supercritical foam core board, improving the grip feel and enhancing user comfort. The foam layer, located on the side of the supercritical foam core board, increases the hardness of the contact area with the ball, thereby enhancing the support force and energy transfer efficiency at the moment of impact, and reducing energy dissipation within the material. This results in more direct ball feedback and faster response. Furthermore, by utilizing its excellent shock absorption capacity and material elasticity, it works in conjunction with optimizing the stiffness, elasticity, and elastic modulus of the supercritical foam board, adjusting the racket's ball speed and shock absorption performance, thus optimizing the feel and improving athletic performance. At the same time, the material's weather resistance and anti-aging properties ensure stable performance of the racket under long-term use and in different temperature and humidity environments, extending its lifespan.

[0006] Preferably, the supercritical foam core board comprises several layers of supercritical foam boards of different densities, which are fixedly connected to each other and stacked along the thickness direction. In use, the supercritical foam core board, which consists of several layers of supercritical foam boards of different densities, has a structure with more than two layers. Each board is stacked along the thickness direction in a sandwich structure. This structural design allows for precise adjustment of the racket's stiffness, elasticity, and modulus of elasticity, as well as the racket's ball speed and shock absorption performance.

[0007] Preferably, the foam layer comprises several layers of foam boards of different densities, which are fixed together and stacked along the thickness direction. In use, the number of layers of foam boards of different densities constituting the foam layer exceeds two layers, and each board is stacked along the thickness direction in a sandwich structure. This structural design allows for precise adjustment of the racket's stiffness, elasticity, and modulus of elasticity, as well as the racket's ball speed and shock absorption performance.

[0008] Preferably, the side of the foam layer away from the supercritical foam core is provided with a friction-enhancing layer.

[0009] Preferably, the friction enhancement layer is a diamond abrasive layer; in use, the friction enhancement layer is preferably a diamond abrasive layer, whose surface roughness is controllable, which can significantly improve the biting performance of the ball at the moment of contact, effectively prevent the ball from slipping, especially when cutting at high speed or hitting the ball with topspin, and can achieve precise classification of the friction coefficient by adjusting the diamond particle size and coating thickness according to different technical style requirements.

[0010] Preferably, the friction-enhancing layer is a carbon fiber cloth layer or a frosted texture layer.

[0011] Preferably, the foam layer is made of EVA foam material or supercritical foam material.

[0012] The advantages of this invention are: 1. This invention utilizes a supercritical foam core board made from supercritically foamed material as the core load-bearing and energy rebound structure of the Peak racket. The supercritically foamed material possesses an extremely small and uniformly dense pore structure, giving the core board excellent lightweight characteristics and a high resilience modulus. Furthermore, the uniform and dense pore structure significantly improves the uniformity of rebound force, effectively avoiding rebound deviations caused by minor local stiffness differences during impact, improving the controllability of the shot, and thus enhancing hitting accuracy and consistency of athletic performance. Additionally, the high shock absorption properties of the supercritically foamed material improve vibration attenuation efficiency during impact, reducing hand fatigue and the risk of sports injuries. The foam layer is located on the side of the supercritical foam core board. It is made of EVA foam material or supercritical foam material and is used to increase the hardness of the contact area with the ball, thereby enhancing the support force and energy transfer efficiency at the moment of impact and reducing energy dissipation inside the material. This makes the ball feedback more direct and the response faster. In addition, by utilizing its excellent shock absorption capacity and material elasticity, it works in conjunction with the optimization of the stiffness, elasticity and elastic modulus of the supercritical foam board to adjust the ball speed and shock absorption performance of the racket, thereby optimizing the feel of use and improving the performance of the sport. At the same time, the weather resistance and anti-aging properties of the material ensure that the racket's performance is stable in long-term use and in different temperature and humidity environments, thus extending its service life. 2. In this invention, the supercritical foam core board is composed of several layers of supercritical foam boards of different densities stacked together, and the foam layer board is composed of several layers of foam boards of different densities. The above-mentioned boards are stacked in a sandwich structure along the thickness direction. Relying on the above structural design, it is possible to accurately adjust the stiffness, elasticity and elastic modulus of the racket, adjust the ball speed and shock absorption performance of the racket, thereby optimizing the feel of use and improving athletic performance. 3. By setting a friction enhancement layer, the present invention preferably uses a diamond abrasive layer during use. Its surface roughness is controllable, which can significantly improve the biting performance of the ball at the moment of contact and effectively prevent the ball from slipping. It performs particularly well when cutting at high speed or hitting the ball with topspin. Furthermore, the friction coefficient can be accurately graded by adjusting the diamond particle size and coating thickness according to different technical style requirements. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a schematic diagram of the supercritical foam core board structure in Example 1; Figure 3 This is a schematic diagram of the foam layer structure in Example 1; Figure 4 This is a schematic diagram of the supercritical foam core board structure in Example 2; Figure 5 This is a schematic diagram of the foam layer structure in Example 2.

[0015] In the diagram: 1. Supercritical foam core board; 2. Foam layer board; 4. Supercritical foam board; 5. Foam board. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Specific implementation examples are given below.

[0018] Example 1 Please see Figures 1-3 As shown, a Peak racket with supercritical foam material includes a supercritical foam core board 1; a foam layer board 2 is fixedly attached to the side of the supercritical foam core board 1; the supercritical foam core board 1 is made of supercritical foam material; the foam layer board 2 is made of EVA foam material or supercritical foam material, and the density of the foam layer board 2 is in the range of 0.03-0.18 g / cm³. 3 ; In use, the supercritical foam core board 1 serves as the core load-bearing and energy rebound structure of the Peak racket. The supercritical foam core board 1 is made of supercritical foam material, which possesses an extremely small and uniformly dense pore structure. This gives the core board excellent lightweight characteristics and a high resilience modulus. Furthermore, the uniform and dense pore structure significantly improves the uniformity of rebound force, effectively avoiding rebound deviations caused by minor local stiffness differences during impact, improving the controllability of the shot, and thus enhancing hitting accuracy and consistency of athletic performance. The high shock absorption characteristics of the supercritical foam material also improve vibration attenuation efficiency during impact, reducing hand fatigue and the risk of sports injuries. The fatigue resistance provided by the microporous structure makes the structure less prone to damage, extending its service life. A foam layer 2 covers the sides of the supercritical foam core board 1, and the grip is integrally molded from the supercritical foam core board 1, improving the excellent grip feel and enhancing user comfort. The foam layer 2 is located on the side of the supercritical foam core board 1 and is made of EVA foam material or supercritical foam material. It is used to increase the hardness of the contact area with the ball, thereby enhancing the support force and energy transfer efficiency at the moment of impact and reducing energy dissipation inside the material. This makes the ball feedback more direct and the response faster. In addition, by utilizing its excellent shock absorption capacity and material elasticity, it works in conjunction with optimizing the stiffness, elasticity and elastic modulus of the supercritical foam board, adjusting the ball speed and shock absorption performance of the racket, thereby optimizing the feel of use and improving the performance of the sport. At the same time, the weather resistance and anti-aging properties of the material ensure that the racket's performance is stable in long-term use and under different temperature and humidity environments, thus extending its service life. In this application, each layer of the board is pre-cut and shaped, then stacked together along the thickness direction, and then hot-pressed into one piece using a mold, resulting in high interlayer bonding strength and no glue residue.

[0019] Furthermore, a friction enhancement layer is provided on the side of the foam layer 2 away from the supercritical foam core board 1; the friction enhancement layer is a diamond abrasive layer; in use, the friction enhancement layer is preferably a diamond abrasive layer, whose surface roughness is controllable, which can significantly improve the biting performance of the ball at the moment of contact, effectively prevent the ball from slipping, especially when cutting at high speed or hitting the ball with topspin, and can achieve precise classification of the coefficient of friction by adjusting the diamond particle size and coating thickness according to different technical style requirements.

[0020] Furthermore, the supercritical foam core board 1 includes two layers of supercritical foam boards 4 with different densities, several layers of supercritical foam boards 4 with different densities are fixed to each other, and the two layers of supercritical foam boards 4 with different densities are stacked along the thickness direction; the foam layer board 2 includes two layers of foam boards 5 with different densities, the two layers of foam boards 5 with different densities are fixed to each other, and the two layers of foam boards 5 with different densities are stacked along the thickness direction. In this embodiment, the supercritical foam core board 1 is composed of two layers of supercritical foam boards 4 with different densities, and the foam layer board 2 is composed of two layers of foam boards 5 with different densities. In use, the supercritical foam core board 1 and the foam layer board 2 are constructed by using supercritical foam boards 4 and foam boards 5 with different densities. Through this structural design, the stiffness, elasticity and elastic modulus of the racket can be adjusted, the ball speed of the racket and the shock absorption performance of the racket can be adjusted, thereby optimizing the feel of use and improving the performance of the sport.

[0021] Example 2 Furthermore, such as Figures 4-5As shown, the supercritical foam core board 1 includes several layers of supercritical foam boards 4 with different densities, which are fixedly connected to each other and stacked along the thickness direction; the foam layer board 2 includes several layers of foam boards 5 with different densities, which are fixedly connected to each other and stacked along the thickness direction. In this embodiment, the supercritical foam core board 1 consists of several layers of supercritical foam boards 4 with different densities, and the number of layers exceeds two. Each board is stacked in a sandwich structure along the thickness direction. Similarly, the foam layer board 2 consists of several layers of foam boards 5 with different densities, and the number of layers exceeds two. Each board is stacked in a sandwich structure along the thickness direction. Based on the above structural design, it is convenient to accurately adjust the stiffness, elasticity and elastic modulus of the racket, and adjust the ball speed and shock absorption performance of the racket.

[0022] Example 3 The friction enhancement layer is a carbon fiber cloth layer or a frosted texture layer; the friction enhancement layer of the present invention can also be a carbon fiber cloth layer or a frosted texture layer. In use, the carbon fiber cloth layer provides anisotropic stiffness through a warp and weft interlacing structure, which improves the friction between the racket and the ball surface, and at the same time enhances the lateral stability and longitudinal rebound response when the ball contacts; the frosted texture layer improves the surface static friction coefficient through a textured structure, effectively suppresses ball slippage and improves ball control accuracy.

[0023] Working principle: During use, the supercritical foam core board 1 serves as the core load-bearing and energy rebound structure of the Peak racket. The supercritical foam core board 1 is made of supercritical foam material, which possesses an extremely small and uniformly dense pore structure. This gives the core board excellent lightweight characteristics and a high resilience modulus. Furthermore, the uniform and dense pore structure significantly improves the uniformity of rebound force, effectively avoiding rebound deviations caused by minor local stiffness differences during impact, improving the controllability of the shot, and thus enhancing hitting accuracy and consistency of athletic performance. The high shock absorption characteristics of the supercritical foam material also improve vibration attenuation efficiency during impact, reducing hand fatigue and the risk of sports injuries. The fatigue resistance provided by the microporous structure makes the structure less prone to damage, extending its service life. A foam layer 2 covers the sides of the supercritical foam core board 1, and the grip is integrally molded from the supercritical foam core board 1, improving the excellent grip feel and enhancing user comfort. The foam layer 2 is located on the side of the supercritical foam core board 1. It is used to increase the hardness of the contact area with the ball, thereby enhancing the support force and energy transfer efficiency at the moment of impact, and reducing energy dissipation inside the material. This makes the ball feedback more direct and the response faster. In addition, by utilizing its excellent shock absorption capacity and material elasticity, it works in conjunction with optimizing the stiffness, elasticity and elastic modulus of the supercritical foam board, adjusting the ball speed and shock absorption performance of the racket, thereby optimizing the feel of use and improving the performance of the sport. At the same time, the weather resistance and anti-aging properties of the material ensure that the racket's performance is stable in long-term use and under different temperature and humidity environments, thus extending its service life. In this application, each layer of the board is pre-cut and shaped, then stacked together along the thickness direction, and then hot-pressed into one piece using a mold, resulting in high interlayer bonding strength and no glue residue. When in use, the friction enhancement layer is preferably a diamond abrasive layer, whose surface roughness is controllable, which can significantly improve the biting performance of the ball at the moment of contact and effectively prevent the ball from slipping. It performs particularly well when cutting at high speed or hitting the ball with topspin. Furthermore, the friction coefficient can be precisely graded by adjusting the diamond particle size and coating thickness according to different technical style requirements. In use, several layers of supercritical foam boards 4 of different densities that constitute the supercritical foam core board 1, with more than two layers, are stacked in a sandwich structure along the thickness direction. Similarly, several layers of foam boards 5 of different densities that constitute the foam layer board 2, with more than two layers, are stacked in a sandwich structure along the thickness direction. The above structural design allows for precise adjustment of the racket's stiffness, elasticity, and modulus of elasticity, as well as the racket's ball speed and shock absorption performance. When in use, the carbon fiber cloth layer provides anisotropic stiffness through its warp and weft interlacing structure, which increases the friction between the racket and the ball surface, while also enhancing the lateral stability and longitudinal rebound response when the ball contacts the racket. The frosted texture layer, on the other hand, increases the surface static friction coefficient through its textured structure, effectively suppressing ball slippage and improving ball control accuracy.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A Peak racket with supercritical foaming material, characterized in that: It includes a supercritical foam core board (1); a foam layer board (2) is fixed to the side of the supercritical foam core board (1); the supercritical foam core board (1) is made of supercritical foam material.

2. The Peak racket with supercritical foaming material according to claim 1, characterized in that: The supercritical foam core board (1) includes several layers of supercritical foam boards (4) of different densities, which are fixed together and stacked along the thickness direction.

3. A Peak racket with supercritical foaming material according to claim 1, characterized in that: The foam board (2) includes several layers of foam boards (5) of different densities, which are fixed together and stacked along the thickness direction.

4. A Peak racket with supercritical foaming material according to claim 1, characterized in that: The foam board (2) has a friction-enhancing layer on the side away from the supercritical foam core board (1).

5. A Peak racket with supercritical foaming material according to claim 4, characterized in that: The friction-enhancing layer is a diamond abrasive layer.

6. A Peak racket with supercritical foaming material according to claim 4, characterized in that: The friction-enhancing layer is a carbon fiber cloth layer or a frosted texture layer.

7. A Peak racket with supercritical foaming material according to claim 1, characterized in that: The foam board (2) is made of EVA foam material or supercritical foam material.

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