Pick racket

Abstract

The utility model relates to a Pick racket in the field of Pick rackets, which comprises a honeycomb core material, a carbon fiber panel and a carbon fiber bottom plate, the carbon fiber panel and the carbon fiber bottom plate are fixedly attached to the top surface and the bottom surface of the honeycomb core material respectively, and each of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate comprises a racket surface part and a handle part. A containing cavity is formed in the middle of the racket face portion of the honeycomb core material, the containing cavity is tightly filled with a plurality of elastic strips used for improving the elasticity of the racket face, the whole containing cavity is completely filled with the elastic strips, and each elastic strip is composed of a strip-shaped foaming rod and a carbon fiber wrapping shell wrapping the surface of the strip-shaped foaming rod. The strip-shaped foaming rod is used for improving the rebound resilience of the racket face part, better rebound resilience can be generated in the racket playing process, the strip-shaped foaming rod is integrally light and belongs to a material with good elasticity, and the carbon fiber face plate and the carbon fiber bottom plate are combined, so that the whole racket face part is good in elasticity and moderate in hardness; and the ball can be quickly hit out without too large ball return force in the ball hitting process.

Description

Technical Field

[0001] The utility model relates to the field of Pickleball rackets, in particular to a Pickleball racket with high elasticity. Background Art

[0002] Pickleball is a racket sport that combines the characteristics of badminton, tennis and table tennis. A Pickleball racket is a key tool used when playing Pickleball, and its material, weight and grip will affect the performance of players. Selecting a suitable Pickleball racket is crucial for improving the hitting effect and enjoying the sport.

[0003] In terms of materials, there are various materials available for existing Pickleball rackets, including lightweight and strong carbon fiber plates, affordable fiberglass, EVA materials, PE materials, honeycomb paper, composite materials and carbon fiber plates, etc. Rackets made of different materials vary in weight, durability and feel, and players can choose according to their own needs and preferences. At the same time, the manufacturing processes of rackets made of different materials are also different.

[0004] According to the characteristics of Pickleball rackets, they can be divided into control rackets and power rackets. The main function of a control racket is how the player can control the ball well in front of the net and use the longer time the ball stays on the racket face to have time to adjust the angle of the racket face and make the ball obediently go to the destination the player wants. The technological requirement for the racket is that the racket face is of moderate size, not too hard and not too soft, and the ball can have a feeling of staying on the racket face, so that the player has time to adjust the angle of the racket face to control the direction of the ball. This is called a control racket. A power racket is mainly used for attacking or quickly hitting the ball back to the opponent, and the faster the return ball is, the better, because a fast return ball makes it difficult for the opponent to see the direction of the ball, leaving the opponent without the ability to fight back. This kind of racket requires high overall strength and rigidity, and the racket face has good elasticity and moderate hardness. A person's arm does not need too much force to hit the ball quickly, and the hitting speed is twice as fast as that of a control racket and is effortless. This is called a power racket.

[0005] In order to improve the elasticity of the Pickleball racket face, during the production process, an elastic material such as foamed cotton is filled inside the racket face. In the prior art, the structure of a Pickleball racket filled with foamed cotton includes a foamed cotton core material, a carbon fiber panel and a carbon fiber bottom plate. The carbon fiber panel and the carbon fiber bottom plate are respectively pasted on the top surface and the bottom surface of the foamed cotton core material, filling the entire racket face with the foamed cotton core material. The advantage of this structure is that it is overall light and the overall resilience of the racket face is good, but the disadvantage is also obvious. Since the foamed cotton core material is relatively soft as a whole and lacks a support structure inside the racket face, the entire racket face does not have support performance, and the racket face collapses and deforms due to long-term hitting of the ball. After the racket face collapses and deforms, the entire Pickleball racket will be scrapped. Summary of the Utility Model

[0006] The object of the present utility model is to solve the above defects and provide a Pickleball racket, which can generate better resilience, solve the technical problem that the racket face in the prior art is too hard, resulting in poor elasticity of the racket face and thus poor resilience during the hitting process.

[0007] The object of the present utility model is achieved in the following way:

[0008] A Pickleball racket, comprising a honeycomb core material, a carbon fiber panel and a carbon fiber bottom plate. The carbon fiber panel and the carbon fiber bottom plate are respectively fixedly attached to the top surface and the bottom surface of the honeycomb core material. The honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate all include a racket face portion and a handle portion. The handle portion extends outward along one end of the racket face portion. A receiving cavity is formed in the middle of the racket face portion of the honeycomb core material, and a number of elastic strips for increasing the elasticity of the racket face are tightly filled in the receiving cavity. The elastic strips will completely fill the entire receiving cavity. The elastic strips are composed of strip-shaped foam rods and carbon fiber wrapping shells wrapped on the surfaces of the strip-shaped foam rods.

[0009] Further, there are more than three receiving cavities in total. The number of elastic strips is the same as the number of receiving cavities. The extending direction of the receiving cavity is the same as or perpendicular to the extending direction of the handle portion, and there is a spacing between adjacent two receiving cavities.

[0010] Further, there are two groups of receiving cavities in total. The two groups of receiving cavities are symmetrically arranged, and there is a spacing between the two groups of receiving cavities. Each group of receiving cavities has more than three. The number of elastic strips is the same as the number of receiving cavities. The extending direction of the receiving cavity is the same as or perpendicular to the extending direction of the handle portion, and there is a spacing between adjacent two receiving cavities.

[0011] Further, there is one receiving cavity in total, and there are a number of elastic strips in total. The number of elastic strips is closely arranged with each other. The extending direction of the elastic strips is the same as or perpendicular to the extending direction of the handle portion.

[0012] Further, a first non-woven fabric layer is adhesively bonded between the top surface of the honeycomb core material and the carbon fiber panel by glue, and a second non-woven fabric layer is adhesively bonded between the bottom surface of the honeycomb core material and the carbon fiber bottom plate by glue. Adding the first non-woven fabric layer and the second non-woven fabric layer can increase the stability of the honeycomb core material, comprehensively wrap from the top surface and the bottom surface of the honeycomb core material, ensure that the honeycombs of the honeycomb core material are tightly connected and not easily deformed.

[0013] Further, the strip-shaped foam rod is made of PU foam or made of ETPU foam.

[0014] ETPU foam material: ETPU (Expanded Thermoplastic Polyurethane) is a new type of TPU foam material with high resilience foam particles obtained by changing the structure of TPU (thermoplastic polyurethane). Its preparation process usually involves pre-treatment of TPU with pressurized heating under the action of supercritical carbon dioxide, so that it expands like popcorn to form non-cross-linked foam particles containing micro-enclosed bubbles.

[0015] ETPU foam material has the characteristics of high resilience, good environmental protection, wear resistance, tear resistance, light weight and temperature resistance. The resilience of foamed TPU can reach more than 61%, which is far higher than that of general elastic materials. The entire preparation process is green and environmentally friendly. The material itself is degradable and has low density. The density range of 0.15-0.25g / cm 3 The foamed TPU particles maintain good performance in a wide temperature range.

[0016] PU foam material: PU (Polyurethane) is a new organic polymer material, known as the "fifth largest plastic". PU foam material is made by mixing polyurethane raw materials with foaming agents, catalysts, etc., and then undergoing a foaming reaction under certain conditions.

[0017] PU foam material has the characteristics of diversity, thermal insulation and waterproofness. By modifying the formula, different physical properties such as density, elasticity, rigidity, etc. can be obtained. It has good thermal insulation performance, dense microporous foam structure and high impermeability.

[0018] Furthermore, the sides of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate are wrapped with carbon fiber edging, which is combined with the carbon fiber panel and the carbon fiber bottom plate to form an integrated structure, which is used to fully wrap the honeycomb core material, ensuring that the whole has hardness and is not easy to deform. The sides of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate are wrapped with edge strips, which are glued to the outer surface of the carbon fiber edging by glue. The edge strips are used to protect the sides of the racket face.

[0019] Furthermore, a reinforcing plate is provided on the side of the connection area between the racket portion and the handle portion of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate, and the reinforcing plate is wrapped with the carbon fiber edging.

[0020] Furthermore, the handle portion of the honeycomb core material, carbon fiber panel and carbon fiber bottom plate is provided with a grip splint and an end cover, and is provided with a hand grip for wrapping around the grip splint.

[0021] The beneficial effects produced by the utility model are as follows:

[0022] A receiving cavity is cut in the middle of the hitting surface of the honeycomb core material, and an elastic strip is tightly filled in the receiving cavity. The elastic strip is composed of a strip-shaped foam rod and a carbon fiber wrapping shell. The strip-shaped foam rod is wrapped by the carbon fiber wrapping shell to ensure that the whole elastic strip has good support and resilience. The side of the carbon fiber wrapping shell is perpendicular to the carbon fiber panel and the carbon fiber bottom plate, which is used to improve the support of the hitting surface, avoid the hitting surface from collapsing and deforming due to long-term hitting of the ball, and has a longer service life. The strip-shaped foam rod is used to improve the resilience of the hitting surface, and better resilience can be generated during the process of hitting the ball. The strip-shaped foam rod is light as a whole and is a material with good elasticity. Combined with the carbon fiber panel and the carbon fiber bottom plate, the overall hitting surface has good elasticity and moderate hardness, and the ball can be quickly hit out without much return force during the process of hitting the ball. Description of the Drawings

[0023] Figure 1 Schematic exploded view of the structure of the Peak badminton racket according to Embodiment 1 of the present utility model;

[0024] Figure 2 Schematic perspective view of the Peak badminton racket according to Embodiment 1 of the present utility model in the state without winding the grip tape;

[0025] Figure 3 Schematic exploded view of the structure of the Peak badminton racket according to Embodiment 1 of the present utility model in the state without winding the grip tape;

[0026] Figure 4 Front view of the honeycomb core material of the Peak badminton racket according to Embodiment 1 of the present utility model;

[0027] Figure 5 Schematic perspective view of the honeycomb core material of the Peak badminton racket according to Embodiment 1 of the present utility model when installing the elastic strip;

[0028] Figure 6 Schematic exploded view of the honeycomb core material of the Peak badminton racket according to Embodiment 1 of the present utility model when installing the elastic strip;

[0029] Figure 7 Front view of the honeycomb core material of the Peak badminton racket according to Embodiment 2 of the present utility model;

[0030] Figure 8 Schematic perspective view of the honeycomb core material of the Peak badminton racket according to Embodiment 2 of the present utility model when installing the elastic strip;

[0031] Figure 9 Schematic exploded view of the honeycomb core material of the Peak badminton racket according to Embodiment 2 of the present utility model when installing the elastic strip;

[0032] Figure 10 Front view of the honeycomb core material of the Peak badminton racket according to Embodiment 3 of the present utility model;

[0033] Figure 11 Schematic three-dimensional structure diagram of the installation of elastic strips on the honeycomb core material in the Pickleball racket according to the third embodiment of the present utility model;

[0034] Figure 12 Exploded structure diagram of the installation of elastic strips on the honeycomb core material in the Pickleball racket according to the third embodiment of the present utility model;

[0035] In the figure, 1 - honeycomb core material, 2 - carbon fiber panel, 3 - carbon fiber bottom plate, 4 - first non-woven fabric layer, 5 - second non-woven fabric layer, 6 - accommodation cavity, 7 - elastic strip, 8 - carbon fiber edge wrapping, 9 - edge protection strip, 10 - splint, 11 - end cap, 12 - grip tape. Detailed implementation manners

[0036] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0037] Embodiment 1

[0038] In this embodiment, referring to Figures 1-6 , the specifically implemented Pickleball racket includes a honeycomb core material 1, a carbon fiber panel 2 and a carbon fiber bottom plate 3. The carbon fiber panel 2 and the carbon fiber bottom plate 3 are respectively fixedly attached to the top surface and the bottom surface of the honeycomb core material 1. To increase the stability of the honeycomb core material 1, a first non-woven fabric layer 4 is adhesively bonded to the top surface of the honeycomb core material 1, and the first non-woven fabric layer 4 is bonded between the top surface of the honeycomb core material 1 and the carbon fiber panel 2. A second non-woven fabric layer 5 is adhesively bonded to the bottom surface of the honeycomb core material 1, and the second non-woven fabric layer 5 is bonded between the bottom surface of the honeycomb core material 1 and the carbon fiber bottom plate 3.

[0039] The honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3 all include a racket face portion and a handle portion. As Figure 3 shown, the honeycomb core material 1, the first non-woven fabric layer 4, the second non-woven fabric layer 5, the carbon fiber panel 2 and the carbon fiber bottom plate 3 have the same shape, and their shapes are the same as the shape of the preset Pickleball racket, and the handle portion extends outward from one end of the racket face portion.

[0040] A accommodation cavity 6 is provided in the middle of the racket face portion of the honeycomb core material 1. As Figure 4As shown, there are a total of eleven accommodation cavities 6 in this embodiment. The extending directions of the eleven accommodation cavities 6 are consistent with the extending direction of the handle part. There is a space between two adjacent accommodation cavities 6 and the spaces are equal. A number of elastic strips 7 for increasing the elasticity of the racket face are tightly filled in the accommodation cavity 6. The shape and quantity of the elastic strips 7 in this embodiment are the same as those of the accommodation cavity 6, and there are a total of eleven elastic strips 7. The elastic strips 7 will completely fill the entire accommodation cavity 6. The elastic strip 7 is composed of a strip-shaped foam rod and a carbon fiber wrapping shell wrapped on the surface of the strip-shaped foam rod. The strip-shaped foam rod in this embodiment is made of ETPU foam. During production, first, the ETPU foam material is wrapped with a carbon fiber wrapping shell, and the carbon fiber wrapping shell wrapped with the ETPU foam material is placed in a foaming mold for foaming. After foaming, the elastic strip 7 has the same shape as the accommodation cavity 6. The top surface of the elastic strip 7 is flush with the top surface of the honeycomb core material 1, and the bottom surface of the elastic strip 7 is flush with the bottom surface of the honeycomb core material 1. And the side surface of the carbon fiber wrapping shell is perpendicular to the carbon fiber panel 2 and the carbon fiber bottom plate 3, which is used to improve the support of the racket face part, can avoid the racket face from collapsing and deforming due to hitting the ball for a long time, and has a longer service life.

[0041] In addition, as Figure 1 , Figure 2 and Figure 3 shown, the side surfaces of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3 are wrapped with a carbon fiber edging 8. On the side surfaces of the connection areas between the racket face parts and the handle parts of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3, there are reinforcing plates. The carbon fiber edging 8 wraps the reinforcing plates. Adding the reinforcing plates can increase the overall stability of the connection between the handle part and the racket face part, ensure that the handle part has a good support effect, and can withstand a greater hitting force without being easily broken. As Figure 2 shown, after pasting the carbon fiber edging 8, the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3 become an integral body after being pasted and pressed. Then, a protective edge strip 9 is wrapped on the side surface of the racket face part of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3. As Figure 1 shown, the protective edge strip 9 is pasted on the outer surface of the carbon fiber edging 8 through glue. And on the handle part of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3, there are grip splints 10 and end caps 11, and there is a hand grip tape 12 for winding the grip splints 10.

[0042] Embodiment Two

[0043] In this embodiment, referring to Figures 7-9, the difference between the specific implementation of the Pickleball racket in this example and that in the first embodiment is as follows: In this embodiment, there are two groups of receiving cavities 6 in total. The two groups of receiving cavities 6 are symmetrically arranged, and there is a gap between the two groups of receiving cavities 6. Each group of receiving cavities 6 has eleven. The number of elastic strips 7 is the same as the number of receiving cavities 6. The total number of the two symmetrically arranged elastic strips 7 is twenty-two. The extending direction of the receiving cavity 6 is consistent with the extending direction of the handle part, and there is a gap between two adjacent receiving cavities 6.

[0044] Embodiment Three

[0045] In this embodiment, referring to Figures 10-12 , the difference between the specific implementation of the Pickleball racket in this example and that in the first embodiment is as follows: In this embodiment, there is one receiving cavity 6 in total. One receiving cavity 6 is located in the middle of the honeycomb core material 1. There is a connecting edge around the receiving cavity 6 left at the edge of the honeycomb core material 1. There are twenty-one elastic strips 7 in total. The twenty-one elastic strips 7 are arranged closely to each other. The extending direction of the elastic strip 7 is consistent with the extending direction of the handle part.

[0046] The manufacturing processes of the three embodiments of the present utility model are the same. The manufacturing process of the Pickleball racket of the present utility model includes the following steps: The first step is to prepare materials. The second step is to install the elastic strips 7. The third step is to press and form. The fourth step is to assemble the finished product.

[0047] The following is a detailed description of each complete step:

[0048] The first step is to prepare materials. Prepare the honeycomb core material 1, the carbon fiber faceplate 2 and the carbon fiber bottom plate 3. Cut the whole plate-shaped honeycomb core material 1 into the shape of a racket with a racket face part and a handle part. The first non-woven fabric layer 4 and the second non-woven fabric layer 5 are respectively pasted on the top surface and the bottom surface of the honeycomb core material 1. At the same time, receiving cavities 6 are cut on the racket face part of the honeycomb core material 1. The number and shape of the receiving cavities 6 can correspond to the solutions of each embodiment. Just cut the receiving cavities 6 with corresponding size requirements by cutting. The carbon fiber faceplate 2 and the carbon fiber bottom plate 3 are both formed by hot pressing carbon fiber prepreg into thin plate materials in the shape of a racket with a racket face part and a handle part. The elastic strips 7 are made through a foaming mold. The carbon fiber wrapped shell wraps the ETPU foaming material. Put the carbon fiber wrapped shell wrapped with the ETPU foaming material into the foaming mold for heating and foaming. The ETPU foaming material foams into a strip-shaped foam rod, so that the ETPU foaming material will completely fill the whole carbon fiber wrapped shell after foaming. The foaming mold is used to accurately control the shape and size of the elastic strips 7. The shape and size of the elastic strips 7 correspond to the receiving cavities 6 of each embodiment.

[0049] Step 2: Install the elastic strip 7. When there is only one accommodation cavity 6, several elastic strips 7 need to be set. Arrange the several elastic strips 7 closely in the accommodation cavity 6 to ensure that the elastic strips 7 completely and tightly fill the entire accommodation cavity 6. When there are several accommodation cavities 6, the number and shape of the elastic strips 7 are the same as those of the accommodation cavities 6, and the elastic strips 7 are paired and placed into the corresponding accommodation cavities 6 to ensure that the corresponding elastic strips 7 will completely fill the corresponding accommodation cavities 6.

[0050] Step 3: Press and form. Paste the carbon fiber panel 2 on the top surface of the honeycomb core 1 with glue, paste the carbon fiber bottom plate 3 on the bottom surface of the honeycomb core 1 with glue, then paste and wrap the carbon fiber edge strip 8 around the sides of the honeycomb core 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3. Finally, place the honeycomb core 1 with the carbon fiber panel 2, the carbon fiber bottom plate 3 and the carbon fiber edge strip 8 pasted thereon into a pressing mold, and place the pressing mold into a heating device for heating and curing. The heating process will bond and cure the carbon fiber panel 2, the carbon fiber bottom plate 3 and the carbon fiber edge strip 8 to the honeycomb core 1 into one body. The pressing mold can well limit the shape of its curing into one body. As Figure 2 shown, deformation is avoided. At the same time, during the heating process, the strip-shaped foaming rod is promoted to perform secondary foaming, so that the elastic strip 7 after secondary foaming will completely and tightly fill the entire accommodation cavity 6 without leaving any gaps. During the heating and curing process of the pressing mold, it can not only promote the curing of the glue and increase the stability of the paste, but also make the strip-shaped foaming rod perform secondary foaming, so that the elastic strip 7 after secondary foaming will completely and tightly fill the entire accommodation cavity 6 without leaving any gaps, avoiding the generation of hollow or abnormal noise due to gaps left in the accommodation cavity 6. Through one-time pressing of the pressing mold, the pasting and fixing and secondary foaming processes can be completed, which can not only improve production efficiency, but also ensure product quality.

[0051] Step 4: Assemble the finished product. Take out the semi-finished product after pressing and forming, wrap the edge protection strip 9 around the hitting surface sides of the honeycomb core 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3. The edge protection strip 9 is fixed by pasting with glue, and after pasting the glue, the edge protection strip 9 is pressed and fixed again. The edge protection strip 9 extends to the handle part. Finally, install the grip splint 10 and the end cap 11. The splint 10 will clamp the handle part along the front and back sides, and wrap the handle part with a grip tape 12.

[0052] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as the protection scope of the present invention.

Claims

1. A pick racket, comprising a honeycomb core material, a carbon fiber faceplate and a carbon fiber bottom plate, the carbon fiber faceplate and the carbon fiber bottom plate are respectively fixedly attached to the top surface and the bottom surface of the honeycomb core material, the honeycomb core material, the carbon fiber faceplate and the carbon fiber bottom plate all include a racket face portion and a handle portion, and the handle portion extends outward along one end of the racket face portion, characterized in that: A receiving cavity is formed in the middle of the hitting surface of the honeycomb core material, and a number of elastic strips for increasing the elasticity of the hitting surface are tightly filled in the receiving cavity. The elastic strips will completely fill the entire receiving cavity. The elastic strip is composed of a strip-shaped foam rod and a carbon fiber wrapping shell wrapped on the surface of the strip-shaped foam rod.

2. The Pickleball racket according to claim 1, wherein: More than three receiving cavities are provided. The number of elastic strips is the same as the number of receiving cavities. The extending direction of the receiving cavity is the same as or perpendicular to the extending direction of the handle part, and there is a gap between adjacent two receiving cavities.

3. The Pickleball racket according to claim 1, wherein: Two groups of receiving cavities are provided. The two groups of receiving cavities are symmetrically arranged, and there is a gap between the two groups of receiving cavities. Each group of receiving cavities has more than three. The number of elastic strips is the same as the number of receiving cavities. The extending direction of the receiving cavity is the same as or perpendicular to the extending direction of the handle part, and there is a gap between adjacent two receiving cavities.

4. The Pickleball racket according to claim 1, characterized in that: One receiving cavity is provided, and a number of elastic strips are provided. The number of elastic strips is closely arranged with each other. The extending direction of the elastic strip is the same as or perpendicular to the extending direction of the handle part.

5. The Pickleball racket according to any one of claims 1-4, characterized in that: A first non-woven fabric layer is adhesively bonded between the top surface of the honeycomb core material and the carbon fiber panel by glue, and a second non-woven fabric layer is adhesively bonded between the bottom surface of the honeycomb core material and the carbon fiber bottom plate by glue.

6. The Pickleball racket according to any one of claims 1-4, characterized in that: The strip-shaped foam rod is made of PU foam or ETPU foam.

7. The Pickleball racket according to any one of claims 1-4, characterized in that: The side surfaces of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate are wrapped with carbon fiber edging. The hitting surface sides of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate are wrapped with edge protection strips, and the edge protection strips are adhesively pasted on the outer surface of the carbon fiber edging.

8. The pick racket according to claim 7, characterized in that: Reinforcing plates are provided on the sides of the connection area between the hitting surface and the handle part of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate, and the carbon fiber edging wraps the reinforcing plates.

9. The Pickleball racket according to claim 8, characterized in that: The handle parts of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate are provided with grip splints and end caps, and a hand grip tape for winding the grip splints is provided.

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