A silent pickleball racket and its manufacturing process

Abstract

The present invention proposes a silent pickleball racket comprising: a panel, a handle and an inner core component, wherein the panel is connected to the handle, a groove is provided on the panel, and an inner core component for sound absorption is arranged in the groove; the present invention effectively reduces the noise generated by the racket during use through the design of the inner core component, especially the structure of the silent unit and the grille. The combination of the silent unit and the grille enables the racket to better absorb and damp vibration when swinging and hitting the ball, thereby reducing the noise level during exercise, making the sound when the ball hits softer and quieter, and improving the comfort of the racket. The design of the silent unit and the grille in the inner core component effectively slows down the vibration generated by the racket during swinging and hitting the ball. The silent unit and the grille can absorb and disperse the vibration energy, reduce the degree of vibration transmission to the hand, reduce the fatigue of the hand during exercise, and improve the operational stability of the racket.

Description

Technical Field

[0001] The invention relates to the field of sports equipment, in particular to a silent pickleball racket and a manufacturing process thereof. Background Art

[0002] With the popularity and development of Peak Sports, more and more people are competing in Peak Sports. Peak competitions and championships held in various places have attracted many participants and formed a competitive system of different levels and age groups. In recent years, Peak Sports has been constantly innovating and changing. For example, the introduction of advanced materials to make rackets, the exploration of technology and tactics, and the improvement of competition level and viewing quality;

[0003] The post-assembly process of the tail cap of a conventional pickleball racket means that the rubber sheet of the racket is attached to the racket sheet, and then the panel of the racket is formed by combining the rubber sheet and the racket sheet. This assembly method makes the racket produce a loud sound when hitting the ball, because the gap between the racket sheet and the rubber sheet will cause resonance and reverberation effects when hitting the ball. This structural design leads to the fact that the panel makes a loud sound when hitting the ball, and cannot achieve functions such as silencing, noise reduction and shock absorption. The sound generated when hitting the ball may interfere with the environment of the athletes and the venue, especially in some occasions that require a silent environment, such as indoor venues near stadiums or residential areas;

[0004] In order to improve this problem, some innovations and technologies have been introduced in the design and manufacture of pickleball rackets. For example, some manufacturers have begun to use new materials, such as synthetic fibers and polymer materials, to reduce the resonance effect between materials, thereby reducing the sound produced when hitting the ball, but with little effect;

[0005] Therefore, there is an urgent need for a pickleball racket with good silencing, noise reduction and shock absorption functions, so that athletes or ordinary users can enjoy a better batting experience, and reduce noise and provide a better environmental experience when necessary. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a silent pickleball racket comprising: a panel, a handle and an inner core component, wherein the panel is connected to the handle, a groove is provided on the panel, and an inner core component for sound absorption is arranged in the groove;

[0007] The outer surfaces of the panel and the handle are both covered with a carbon fiber material layer;

[0008] The outer surface of the carbon fiber material layer is sequentially subjected to sanding, rough grinding and fine polishing processes, including:

[0009] Lightly sand the carbon fiber surface of the panel (1) and handle (3) to remove any sharp fibers or uneven parts;

[0010] The carbon fiber surface is roughly ground using coarse-grained abrasives;

[0011] On the basis of the rough grinding treatment, the carbon fiber surface is finely polished using a fine-grained polishing agent;

[0012] Conduct quality inspection on the polished carbon fiber surface and perform secondary polishing on flaws and defects;

[0013] Place the racket in the mold, complete the upper and lower mold cover films, install the fixing screws, and put it into the high-temperature hot press furnace for heating and curing;

[0014] After solidification, the racket is placed in a cooling device for cooling, and taken out after cooling to obtain a silent pickleball racket.

[0015] Furthermore, the inner core component includes: a fixing frame, a silent unit and a gasket, the fixing frame is provided with a plurality of rows of grilles, the grilles are sequentially filled with a plurality of the silent units and a plurality of the gaskets, and the gaskets and the silent units are staggered.

[0016] Furthermore, the grilles are arranged in six rows.

[0017] Furthermore, the length of the grilles in the first to fourth rows is 40 mm, the length of the grilles in the fifth row is 35 mm, and the length of the grilles in the sixth row is 22 mm.

[0018] Furthermore, the fixing frame is made of silicone, the gasket is made of rubber, the grille is made of high-elastic epoxy foam-coated carbon fiber material, and the silent unit is made of EVA surface-coated carbon fiber.

[0019] Furthermore, the panel and the handle are integrally formed.

[0020] Furthermore, the carbon fiber material layer covering the outer surface of the handle is in the shape of spiral stripes.

[0021] Furthermore, a silicone shock-absorbing strip is provided on the outer contour of the panel.

[0022] The manufacturing process of the silent pickleball racket includes the following steps:

[0023] S1. An integrated panel and handle are obtained by a mold forming process, sound insulation cotton is arranged on the surface of the panel, and epoxy resin is applied on the sound insulation cotton;

[0024] S2. A groove with a width of 90 mm and a length of 160 mm is provided in the middle hitting area of ​​the panel;

[0025] S3. A fixing frame is arranged in the tank body, and a grille is arranged in the fixing frame, wherein the grille has six rows and five columns, each cell in the grille is sequentially filled with a silent unit and a gasket, and a high-elastic epoxy foam is placed on the outermost side of the fixing frame to be bonded to the panel;

[0026] S4, then the outer contour of the panel is bonded by sequentially placing carbon fiber composite material coated with high elastic epoxy foam and silicone shock absorbing strips;

[0027] S5. Put epoxy foam into the handle and cover it with carbon fiber. The thickness of carbon fiber is 0.45mm. The handle is completed and the panel is layered with carbon fiber angles of 0 degree and 45 degree.

[0028] S6. Slightly sand the carbon fiber surface of the panel and handle to remove any sharp fibers or uneven parts to ensure a smoother surface.

[0029] S7, using coarse-grained abrasive to rough-grind the carbon fiber surface to further improve the surface smoothness;

[0030] S8. On the basis of rough grinding, use fine-grained polishing agent to finely polish the carbon fiber surface to improve the appearance and texture of the racket;

[0031] S9. Perform quality inspection on the polished carbon fiber surface to ensure that the polishing effect meets the preset standards and is free of flaws and defects;

[0032] S10, placing the racket in the mold, after the upper and lower mold covering films are completed, insert the fixing screws, and place it in a high-temperature hot press furnace for heating and curing;

[0033] S11, after heating and curing, put it into a cooling device for cooling, and take it out after cooling to obtain a silent pickleball racket.

[0034] The beneficial effects of the present invention are as follows: the present invention effectively reduces the noise generated by the racket during use through the design of the inner core component, especially the structure of the silent unit and the grille. The combination of the silent unit and the grille enables the racket to better absorb and damp vibrations when swinging and hitting the ball, thereby reducing the noise level during exercise, making the sound when the ball hits softer and quieter, and improving the comfort of using the racket. The design of the silent unit and the grille in the inner core component effectively reduces the vibration generated by the racket during swinging and hitting the ball. The silent unit and the grille can absorb and disperse vibration energy, reduce the degree of vibration transmission to the hand, reduce the fatigue of the hand during exercise, and improve the operational stability of the racket. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the structure of the inner core component of the present invention;

[0037] Figure 3 It is a schematic diagram of the local structure of the inner core component of the present invention.

[0038] Among them, 1. panel; 2. inner core assembly; 21. fixing frame; 22. gasket; 23. grille; 24. silent unit; 3. handle. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Example 1: Figure 1-Figure 3 As shown, a silent pickle ball of the present embodiment comprises: a panel 1, a handle 3 and an inner core component 2, wherein the panel 1 is connected to the handle 3, a groove body (not shown in the figure) is provided on the panel 1, and an inner core component 2 for sound absorption is arranged in the groove body.

[0043] The outer surfaces of the panel 1 and the handle 3 are both covered with a carbon fiber material layer;

[0044] The outer surface of the carbon fiber material layer is sequentially processed by sanding, rough grinding and fine polishing.

[0045] Specifically, the inner core component 2 includes: a fixing frame 21, a silent unit 24 and a gasket 22. The fixing frame 21 is provided with several rows of grilles 23. The grilles 23 are sequentially filled with a plurality of the silent units 24 and a plurality of the gaskets 22. The gaskets 22 and the silent units 24 are alternately arranged, and the grilles 23 are arranged in six rows.

[0046] Specifically, the length of the grilles 23 in the first to fourth rows is 40 mm, the length of the grilles 23 in the fifth row is 35 mm, and the length of the grilles 23 in the sixth row is 45 mm.

[0047] The fixing frame 21 is made of silicone, which has excellent elastic recovery and good elasticity. After being deformed by external force, it can quickly return to its original shape without leaving permanent deformation. This excellent elastic recovery performance enables it to absorb impact force well and play a buffering role. At the same time, silicone with low hardness and good flexibility is a polymer material with low hardness and excellent flexibility. When subjected to impact load, silicone can consume and disperse energy through deformation, thereby reducing the impact force transmission to the fixed object and achieving the effect of buffering and shock absorption.

[0048] Specifically, the gasket 22 is made of rubber, which has excellent elasticity and cushioning properties, and can absorb and relieve impact and vibration well, thereby playing a role in shock absorption and cushioning. This is very important for components that need to withstand impact loads, and can extend the service life and improve reliability.

[0049] The grille 23 is made of a high-elastic epoxy foam-coated carbon fiber material, and the mute unit 24 is made of an EVA surface-coated carbon fiber.

[0050] The panel 1 and the handle 3 are integrally formed, which can simplify the manufacturing process, reduce assembly procedures, and improve production efficiency. It can reduce labor and equipment costs, improve product consistency, and at the same time enhance structural strength. The integral molding makes the panel and the handle integrated, without a seam between the two, and the structure is more solid. This can improve durability for products that need to withstand certain impacts or torsions.

[0051] The carbon fiber material layer coated on the outer surface of the handle 3 is in a spiral stripe shape, which can enhance the structural strength. Carbon fiber is a high-strength fiber with excellent tensile, compression and shear properties. Coating the carbon fiber material on the outside of the handle can significantly improve the structural strength and impact resistance of the handle, and prevent the handle from being deformed or damaged during use. Setting the carbon fiber material layer on the outer surface of the handle 3 in a spiral stripe shape can increase the friction between the hand and the handle 3, making the grip more stable and less prone to slipping. This is very important for users to perform fast and accurate swings in competitions. The spiral stripe design can make the handle surface more fit the shape of the palm grip, providing a more comfortable grip.

[0052] The outer contour of the panel 1 is provided with a silicone shock-absorbing strip, which has good elasticity and stretch resistance, and can effectively absorb and reduce the impact force when the racket collides with the ball, thereby reducing the player's hand vibration, reducing wrist and arm fatigue, and being able to maintain a high level of competitive state for a longer time when in use.

[0053] The manufacturing process of the silent pickleball racket includes the following steps:

[0054] S1, obtaining an integrated panel 1 and a handle 3 by a mold forming process, and setting a sound insulation cotton (not shown in the figure) on the surface of the panel 1, and applying epoxy resin on the sound insulation cotton;

[0055] S2, a groove with a width of 90 mm and a length of 160 mm is provided in the middle hitting area of ​​panel 1;

[0056] S3, a fixing frame 21 is arranged in the tank body, a grille 23 is arranged in the fixing frame 21, wherein the grille 23 has six rows and five columns, each cell in the grille 23 is sequentially filled with a mute unit 24 and a gasket 22, and a high-elastic epoxy foam is placed on the outermost side of the fixing frame 21 to be bonded to the panel 1;

[0057] S4, then the outer contour of the panel 1 is bonded by sequentially placing carbon fiber composite material coated high elastic epoxy foam and silicone shock absorbing strips;

[0058] S5. Put epoxy foam into the handle 3 parts and cover them with carbon fiber. The thickness of carbon fiber is 0.45mm. After the handle is made, the panel 1 is layered with carbon fiber angle 0 degree and 45 degree materials in turn;

[0059] S6. Slightly sand the carbon fiber surface of the panel 1 and the handle 3 to remove any sharp fibers or uneven parts to ensure a smoother surface;

[0060] S7, using coarse-grained abrasive to rough-grind the carbon fiber surface to further improve the surface smoothness;

[0061] S8. On the basis of rough grinding, use fine-grained polishing agent to finely polish the carbon fiber surface to improve the appearance and texture of the racket;

[0062] S9. Perform quality inspection on the polished carbon fiber surface to ensure that the polishing effect meets the preset standards and is free of flaws and defects;

[0063] S10, placing the racket in the mold, after the upper and lower mold covering films are completed, insert the fixing screws, and place it in a high-temperature hot press furnace for heating and curing;

[0064] S11, after heating and curing, put it into a cooling device for cooling, and take it out after cooling to obtain a silent pickleball racket.

[0065] After taking out the silent pickleball racket, carry out the following painting process steps:

[0066] 1. Place the materials stored at 5°C in an environment to thaw for 24 hours to ensure complete thawing. Then, follow the instructions of the pattern book to cut and prepare the materials, confirm the angle, weight and resin content of the materials, and perform the composite work to ensure the quality and performance of the composite materials. Then, lay the materials according to the designed thickness and material requirements to ensure the uniformity and accuracy of the layup.

[0067] 2. According to the different mold models, set the corresponding mold entry temperature and furnace temperature, carry out hot pressing process to ensure the molding effect of the material, and then carry out trimming and finishing work, and then test the product in terms of appearance, material, thickness and weight to ensure that the product meets the set requirements. Finally, select the appropriate abrasive material, set the appropriate air pressure and sandblasting distance, perform sandblasting to improve the surface quality of the product, and select the appropriate sandpaper to polish the product to ensure a smooth and delicate surface.

[0068] 3. Spray the primer twice according to the specified paint ratio, and bake after each spraying to ensure the quality and adhesion of the primer. Then use appropriate sandpaper to polish the primer twice to ensure that the primer surface is smooth and uniform. Then, according to the glue ratio and curing temperature, perform two repairs to ensure the quality and stability of the repaired parts. Then, according to the specified paint ratio, spray the color. Then, according to the design manuscript, stick the label on the product to ensure that the label position is accurate. Then, test the product in terms of appearance, material, thickness and weight to ensure that the product meets the set standard requirements. Then, according to the specified paint ratio, spray the topcoat to ensure that the product surface is smooth and uniform. Finally, bake the product sprayed with topcoat and set the appropriate baking temperature and static time.

[0069] 4. Assemble the products according to the needs of the order customers to ensure the integrity of the product structure. Select the appropriate packaging method based on the requirements of the appearance, material, thickness and weight of the first piece, package the products and mark the information such as the shipping mark. Then, place the products in the designated area according to the shipping order to ensure the classification and sorting of the products.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silent pickleball racket, characterized in that: include: A panel (1), a handle (3) and an inner core component (2), wherein the panel (1) is connected to the handle (3), a groove is provided on the panel (1), and an inner core component (2) for sound absorption is arranged in the groove; The outer surfaces of the panel (1) and the handle (3) are both covered with a carbon fiber material layer; The outer surface of the carbon fiber material layer is sequentially subjected to sanding, rough grinding and fine polishing processes, including: Lightly sand the carbon fiber surface of the panel (1) and handle (3) to remove any sharp fibers or uneven parts; The carbon fiber surface is roughly ground using coarse-grained abrasives; On the basis of the rough grinding treatment, the carbon fiber surface is finely polished using a fine-grained polishing agent; Conduct quality inspection on the polished carbon fiber surface and perform secondary polishing on flaws and defects; Place the racket in the mold, complete the upper and lower mold cover films, install the fixing screws, and put it into the high-temperature hot press furnace for heating and curing; After solidification, the racket is placed in a cooling device for cooling, and taken out after cooling to obtain a silent pickleball racket; The inner core component (2) comprises: a fixing frame (21), a silent unit (24) and a gasket (22); the fixing frame (21) is provided with a plurality of rows of grilles (23); the grilles (23) are filled with a plurality of silent units (24) and a plurality of gaskets (22) in sequence; the gaskets (22) and the silent units (24) are arranged in a staggered manner; The fixing frame (21) is made of silica gel, the gasket (22) is made of rubber, the grille (23) is made of a high-elastic epoxy foam-coated carbon fiber material, and the mute unit (24) is made of an EVA surface-coated carbon fiber.

2. The silent pickleball racket according to claim 1, characterized in that: The grilles (23) are arranged in six rows.

3. The silent pickleball racket according to claim 2, characterized in that: The length of the grilles (23) in the first to fourth rows is 40 mm, the length of the grilles (23) in the fifth row is 35 mm, and the length of the grilles (23) in the sixth row is 45 mm.

4. The silent pickleball racket according to claim 1, characterized in that: The panel (1) and the handle (3) are integrally formed.

5. The silent pickleball racket according to claim 1, characterized in that: The carbon fiber material layer coated on the outer surface of the handle (3) is in the shape of spiral stripes.

6. The silent pickleball racket according to claim 1, characterized in that: The outer contour of the panel (1) is provided with a silica gel shock absorbing strip.

7. The manufacturing process of the silent pickleball racket according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, obtaining an integrated panel (1) and handle (3) by a mold forming process, arranging sound insulation cotton on the surface of the panel (1), and applying epoxy resin on the sound insulation cotton; S2, a groove with a width of 90 mm and a length of 160 mm is provided in the middle hitting area of ​​the panel (1); S3, a fixing frame (21) is arranged in the tank body, and a grille (23) is arranged in the fixing frame (21), wherein the grille (23) has six rows and five columns, each cell in the grille (23) is sequentially filled with a silent unit (24) and a gasket (22), and a high-elastic epoxy foam is placed on the outermost side of the fixing frame (21) to be bonded to the panel (1); S4, then bonding the outer contour of the panel (1) by sequentially placing carbon fiber composite material-coated high-elastic epoxy foam and silicone shock-absorbing strips; S5. The handle (3) is filled with epoxy foam and covered with carbon fiber with a thickness of 0.45 mm. The handle is completed. A layer of carbon fiber is laid in the longitudinal direction (i.e., the 0 degree direction) of the panel (1), and then the next layer of carbon fiber is laid at an angle of 45 degrees relative to this direction. S6. Lightly sand the carbon fiber surface of the panel (1) and handle (3) to remove any sharp fibers or uneven parts and ensure a smoother surface. S7, using coarse-grained abrasive to rough-grind the carbon fiber surface to further improve the surface smoothness; S8. On the basis of rough grinding, use fine-grained polishing agent to finely polish the carbon fiber surface to improve the appearance and texture of the racket; S9. Perform quality inspection on the polished carbon fiber surface to ensure that the polishing effect meets the preset standards and is free of flaws and defects; S10, placing the racket in the mold, after the upper and lower mold covering films are completed, insert the fixing screws, and place it in a high-temperature hot press furnace for heating and curing; S11, after heating and curing, put it into a cooling device for cooling, and take it out after cooling to obtain a silent pickleball racket.

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