EPP core racket with reinforced plate

Abstract

The utility model belongs to the technical field of sports equipment, specifically belongs to a kind of EPP core material pick racket containing reinforcing board, including reinforcing board, EPP foam layer, non-woven fabric layer and surface layer;The two sides of the reinforcing board are EPP foam layer, reinforcing board is embedded in EPP core material, non-woven fabric layer is bonded and fixed on the outside of EPP board layer, surface layer is pasted on the outside of non-woven fabric layer.In the utility model, reinforcing board and EPP core material jointly constitute the core support structure of racket, and combined with carbon fiber layer and glass fiber layer, carbon fiber layer or glass fiber layer surface layer, to enhance the rigidity of racket, prolong the service life of racket.

Description

Technical Field

[0001] This utility model belongs to the field of sports equipment technology, specifically to a Peak racket with an EPP core material containing a reinforcing plate. Background Technology

[0002] Peak rackets made of expanded polypropylene (EPP) are already available on the market, but EPP material itself has a problem with insufficient rigidity, making it prone to deformation upon impact. The presence of a surface layer can greatly improve this deformation; however, if the surface layer is too thick, it will affect the overall weight of the Peak racket; if it is too thin, it will not be able to address the inherent deformation problem of EPP material. Therefore, structural improvements are needed for Peak rackets with an EPP core. Utility Model Content

[0003] This invention provides a Peak racket with an EPP core containing a reinforcing plate, in order to enhance racket rigidity and extend racket lifespan.

[0004] A Peak racket with an EPP core containing a reinforcing plate includes a reinforcing plate, an EPP foam layer, a non-woven fabric layer, and a surface layer;

[0005] The reinforcing board has EPP foam layers on both sides, and the reinforcing board is embedded in the EPP core material. A non-woven fabric layer is bonded and fixed on the outside of the EPP board layer, and a surface layer is glued on the outside of the non-woven fabric layer.

[0006] Furthermore, the reinforcing material is a carbon fiber board or a glass fiber board.

[0007] Furthermore, the surface layer is a carbon fiber layer and a glass fiber layer, or a carbon fiber layer or a glass fiber layer.

[0008] Furthermore, when the surface layer is a carbon fiber layer and a glass fiber layer, the carbon fiber layer is the outer layer; the total thickness of the two after molding is 0.1-0.5mm, wherein the glass fiber layer accounts for 50%-60% of the total mass of the surface layer.

[0009] Furthermore, in the surface layer, the carbon fiber layer is a molded sheet of epoxy carbon fiber prepreg with a thickness of 0.1-0.5 mm.

[0010] Furthermore, in the surface layer, the glass fiber layer is an epoxy glass fiber prepreg with a thickness of 0.1-0.5 mm.

[0011] In this invention, the reinforcing plate and the EPP core material together constitute the core support structure of the racket, and combined with the surface layer composed of carbon fiber layer and glass fiber layer, or carbon fiber layer or glass fiber layer, the following beneficial effects are achieved:

[0012] 1. Enhance the rigidity and stability of Peak rackets: The addition of carbon fiber or fiberglass plates significantly enhances the rigidity of the EPP core material, effectively reducing racket deformation during impact, making shots more accurate, power transfer more stable and efficient, and improving the player's hitting experience and competitive level.

[0013] 2. Extends the lifespan of Peak rackets: Reduces the risk of material fatigue and damage caused by long-term stress deformation, reduces EPP core deformation, extends racket lifespan, reduces the frequency of racket replacement, and saves costs for players.

[0014] 3. Optimized performance balance: While improving rigidity, the racket's lightweight and elasticity are maintained by rationally designing the thickness and performance of each layer of materials, ensuring that the racket's control and hitting feel are not affected, thus achieving an optimized performance balance. Attached Figure Description

[0015] Figure 1 This is a multi-layer structure diagram of the EPP core material of the Peak racket according to this utility model;

[0016] Figure 2 This is a schematic diagram of the Peak racket structure using the EPP core material of this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of the middle part of the center circle;

[0018] In the diagram: 1. Reinforcing board; 2. EPP foam layer; 3. Non-woven fabric layer; 4. Surface layer; 5. Glass fiber layer; 6. Carbon fiber layer. Detailed Implementation

[0019] The technical solution of this utility model will be further explained and described below through specific embodiments.

[0020] Example

[0021] This utility model provides a Peak racket with an EPP core material containing a reinforcing plate, comprising a reinforcing plate 1, an EPP foam layer 2, a non-woven fabric layer 3, and a surface layer;

[0022] The reinforcing plate 1 is a carbon fiber plate or a glass fiber plate.

[0023] The reinforcing board 1 has EPP foam layers 2 on both sides. The reinforcing board is embedded in the EPP core material. A non-woven fabric layer 3 is bonded and fixed on the outside of the EPP board layer. A surface layer 4 is glued on the outside of the non-woven fabric layer 3.

[0024] In this embodiment, the surface layer includes a carbon fiber layer and a glass fiber layer, with the carbon fiber layer being the outer layer; the total thickness of the two layers after molding is 0.1-0.5 mm, wherein the glass fiber layer accounts for 50%-60% of the total mass of the surface layer.

[0025] The carbon fiber layer uses a 0.4mm thick epoxy carbon fiber prepreg molded sheet to provide sufficient hardness and compressive strength to the racket surface, stabilizing the hitting process; the glass fiber layer uses a 0.1mm thick epoxy glass fiber prepreg sheet. This enhances the adhesion between the surface layer and the non-woven fabric layer and improves the overall elasticity of the racket, making hitting the ball less strenuous. The total thickness of both layers after molding is 0.5mm, with the glass fiber layer accounting for 50% of the total mass of the surface layer.

[0026] The edges of the composite racket blade are trimmed using CNC cutting equipment to remove excess material, resulting in neat and smooth edges. Next, the surface is sanded and polished to improve its smoothness and texture. Finally, the racket is decorated with features such as brand logos and patterns to complete the production process.

[0027] The racket of this embodiment was tested and found to be outstanding in terms of lightweight design, with a 50% increase in sweet spot stiffness and a 30% improvement in durability, meeting the diverse performance needs of different players.

Claims

1. A Peak racket with an EPP core containing a reinforcing plate, characterized in that, It includes a reinforcing board, an EPP foam layer, a non-woven fabric layer, and a surface layer; The reinforcing board has EPP foam layers on both sides, the reinforcing board is embedded in the EPP core material, a non-woven fabric layer is bonded and fixed on the outside of the EPP board layer, and a surface layer is bonded on the outside of the non-woven fabric layer. The reinforcing material is a carbon fiber board or a glass fiber board.

2. The Peak racket with EPP core material containing reinforced plate according to claim 1, characterized in that, The surface layer is a carbon fiber layer and a glass fiber layer, or a carbon fiber layer or a glass fiber layer.

3. The Peak racket with EPP core material containing reinforced plate according to claim 2, characterized in that, When the surface layer is a carbon fiber layer and a glass fiber layer, the carbon fiber layer is the outer layer; the total thickness of the two after molding is 0.1-0.5mm, of which the glass fiber layer accounts for 50%-60% of the total mass of the surface layer.

4. The Peak racket with EPP core material containing reinforced plate according to claim 2, characterized in that, In the aforementioned surface layer, the carbon fiber layer is a molded sheet of epoxy carbon fiber prepreg with a thickness of 0.1-0.5 mm.

5. The Peak racket with EPP core material containing reinforced plate according to claim 2, characterized in that, In the aforementioned surface layer, the glass fiber layer is an epoxy glass fiber prepreg with a thickness of 0.1-0.5 mm.

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