TWI826251B - A pickleball racket - Google Patents

Abstract

The present invention provides a pickleball racket, which has a first panel and a second panel opposite to each other. The first panel has a top surface combined with a first elastic adhesive layer, and the first elastic adhesive layer has a top surface combined with a first friction layer, and the second panel has a bottom surface combined with a second elastic adhesive layer, and the second elastic adhesive layer has a bottom surface combined with a second friction layer. A racket core is sandwiched and bonded vertically between a lower surface of the first panel and an upper surface of the second panel. The racket core includes a first cushioning layer, a second cushioning layer and a solid core plate. The lower surface of the first panel is combined with the first cushioning layer, and the upper surface of the second panel is combined with the second cushioning layer. The solid core plate is combined between the first cushioning layer and the second cushioning layer to generate sufficient beating strength, so as to achieve noise-reducing and thickness-reducing effects, thereby generating effective frictions to make a pickle ball to be rotated correctly.

Description

pickleball racket

The invention relates to a pickleball racket, especially one that can achieve a noise-reducing effect, be convenient for the user to control, and can generate effective friction to make the pickleball ball rotate correctly.

Pickleball is a racket-type sport that combines the characteristics of badminton, tennis and billiards. The size of the pickleball court is similar to that of a badminton court. The height of the pickleball net is the same as that of the tennis net. The pickleball racket used by the user is like an enlarged billiard ball. The ball of pickleball is a hollow plastic ball that is slightly larger than a tennis ball and has multiple holes. The playing method of pickleball is similar to that of tennis. It can be hit on the ground or volleyed directly in the air. This type of pickleball has gained a good reputation after being tried and tested by millions of people around the world in recent years. It is undoubtedly a fun, easy-to-play and trendy sport suitable for all ages.

The racket core is the backbone of a pickleball racket. Currently, the common racket cores mainly use aluminum cores or polypropylene (PP) cores with a honeycomb-shaped structure to generate sufficient strength for effective strikes; and for cushioning control and quieter For hitting the ball, another type of racket core uses foamed polymer material. However, the honeycomb-shaped racket core is prone to produce drum-like noise when the user hits the ball. Although the foamed polymer racket core has cushioning and noise reduction functions, it needs to be used due to insufficient strength. Increasing the thickness of the racket makes the pickleball racket appear bulky and unfavorable for operation. In addition, the front and back sides of the racket core will be combined with a layer of panels to directly hit the pickleball. However, due to the surface friction of ordinary panels, the It can meet the standards, but in actual use, it cannot allow the pickleball to rotate correctly as needed, thus limiting the user's spin skills when hitting.

In view of this, in order to provide a structure that is different from the conventional technology and improve the above-mentioned shortcomings, the creator has accumulated many years of experience and continuous research and development and improvement, and thus came into being this creation.

One of the purposes of this invention is to provide a pickleball racket that can solve the problem that conventional pickleball rackets tend to produce noise when the user hits the ball, or appear bulky and unfavorable for operation, or cannot be used according to the user's hitting needs. The problem of correct ball spin. By combining a buffer layer on the upper surface of a solid core board and a lower surface of the lower board, and a flexible adhesive layer and a friction layer on the top surface of the upper panel and the bottom surface of the lower panel, it is possible to It generates sufficient hitting intensity, achieves the effect of reducing noise, reduces the thickness of the racket for easier control, and generates effective friction effect to make the pickleball rotate correctly, allowing users to fully utilize their spin skills when hitting.

In order to achieve the purpose of the above creation, the pickleball racket provided in this creation has a first panel and a second panel in opposite directions. The lower panel of the first panel and the upper panel of the second panel are sandwiched up and down. And bonded with a racket core; its main technical features are: the first panel and the second panel are each made of at least one fiber cloth bonded and hardened; the top surface of the first panel is combined with a first elastic adhesive layer, and the first elastic adhesive layer The top surface of the second panel is combined with a first friction layer, the bottom surface of the second panel is combined with a second elastic adhesive layer, and the bottom surface of the second elastic adhesive layer is combined with a second friction layer; the racket core includes a first buffer layer and a second buffer layer layer and a solid core board, the lower surface of the first panel is combined with the first buffer layer, the upper surface of the second panel is combined with the second buffer layer, and the first buffer layer and the second buffer layer are combined with the solid core board.

During implementation, the first panel includes two first fiber cloths of different materials, and the two first fiber cloths are stacked and bonded to each other.

During implementation, the two first fiber cloths are a carbon fiber cloth and a glass fiber cloth respectively.

During implementation, the second panel includes two second fiber cloths of different materials, and the two second fiber cloths are stacked and bonded to each other.

During implementation, the two second fiber cloths are a carbon fiber cloth and a glass fiber cloth respectively.

During implementation, the thicknesses of the first elastic adhesive layer and the second elastic adhesive layer are respectively between 0.1 and 0.3 mm.

During implementation, the first friction layer is a polishing film with a plurality of first particles on the upper surface of the first film; the second friction layer is a polishing film with a plurality of second particles on the lower surface of the second film.

During implementation, the first friction layer and the second friction layer are respectively aluminum oxide polishing films with a maximum height roughness between 10 and 20 microns (µm).

During implementation, the first film and the second film are respectively transparent films, the lower surface of the first film is bonded with a first printing layer, and the upper surface of the second film is bonded with a second printing layer.

During implementation, the first buffer layer and the second buffer layer are films made of polyvinyl butyral resin, and the solid board is a flat plate made of polymethacrylimide.

In order to facilitate a deeper understanding of this creation, it is described in detail below:

The pickleball racket of this invention has an opposite first panel and a second panel. The first panel and the second panel are respectively made of at least one fiber cloth bonded and hardened. The top surface of the first panel is combined with a first elastic adhesive layer. The top surface of the elastic adhesive layer is combined with a first friction layer; the bottom surface of the second panel is combined with a second elastic adhesive layer, and the bottom surface of the second elastic adhesive layer is combined with a second friction layer; the bottom surface of the first panel and the second A racket core is sandwiched and bonded up and down on the panel. The racket core includes a first buffer layer, a second buffer layer and a solid core board. The bottom surface of the first panel is combined with the first buffer layer, the top surface of the second panel is combined with the second buffer layer, and the solid core board It is sandwiched and combined between the first buffer layer and the second buffer layer.

Please refer to Figures 1 and 2, which are the first embodiment of the pickleball racket 1 of the present invention, which mainly includes a first panel 2, a second panel 3, a first buffer layer 4, and a second buffer layer 5 , a solid core plate 6, a first elastic adhesive layer 70, a second elastic adhesive layer 80, a first friction layer 7 and a second friction layer 8. The first buffer layer 4, the second buffer layer 5 and the solid core board 6 are combined to form a racket core 60. The racket core 60 is sandwiched and bonded between the lower surface 21 of the first panel 2 and the upper surface of the second panel 3. Between the board surfaces 31, the first panel 2 and the second panel 3 are arranged up and down opposite to the two ends of the racket core 60.

The first panel 2 includes two first fiber cloths (22, 23) of different materials. The two first fiber cloths (22, 23) are respectively at least one carbon fiber cloth arranged on the outer layer and at least one glass cloth arranged on the inner layer. Fiber cloth, each carbon fiber cloth includes a plurality of woven carbon fibers. When the carbon fiber cloth is bonded and hardened with resin, the carbon fibers of the carbon fiber cloth cross each other to produce high rigidity; and each glass fiber cloth includes a plurality of woven glass fibers. When After the fiberglass cloth is bonded and hardened with resin, the individual glass fibers of the fiberglass cloth cross each other to produce high toughness and strength. After the two first fiber cloths (22, 23) are laminated and bonded to each other, the lower panel 21 of the glass fiber cloth is combined with the first buffer layer 4. The first buffer layer 4 is polyvinyl butyral resin (Polyvinyl Butyral Resin, PVB) film to produce buffering and sound-absorbing effects.

The second panel 3 includes two second fiber cloths (32, 33) of different materials. The two first fiber cloths (22, 23) are respectively at least one carbon fiber cloth arranged on the outer layer and at least one glass cloth arranged on the inner layer. Fiber cloth, each carbon fiber cloth includes a plurality of woven carbon fibers. When the carbon fiber cloth is bonded and hardened with resin, the carbon fibers of the carbon fiber cloth cross each other to produce high rigidity; and each glass fiber cloth includes a plurality of woven glass fibers. When After the fiberglass cloth is bonded and hardened with resin, the individual glass fibers of the fiberglass cloth cross each other to produce high toughness and strength. After the two first fiber cloths (22, 23) are laminated and bonded to each other, the lower panel 21 of the glass fiber cloth is combined with the first buffer layer 4. The first buffer layer 4 is polyvinyl butyral resin (Polyvinyl Butyral Resin, PVB) film to produce buffering and sound-absorbing effects.

The second panel 3 includes two second fiber cloths (32, 33) of different materials. The two first fiber cloths (32, 33) are respectively at least one carbon fiber cloth arranged on the outer layer and at least one glass cloth arranged on the inner layer. Fiber cloth, each carbon fiber cloth includes a plurality of woven carbon fibers. When the carbon fiber cloth is bonded and hardened with resin, the carbon fibers of the carbon fiber cloth cross each other to produce high rigidity; and each glass fiber cloth includes a plurality of woven glass fibers. When After the fiberglass cloth is bonded and hardened with resin, the individual glass fibers of the fiberglass cloth cross each other to produce high toughness and strength. After the two second fiber cloths (32, 33) are laminated and bonded to each other, the upper plate 31 of the glass fiber cloth is combined with the second buffer layer 5. The second buffer layer 5 is made of polyvinyl butyral resin (Polyvinyl Butyral Resin, PVB) film to produce buffering and sound-absorbing effects.

The solid board 6 is a flat plate made of polymethacrylimide (PMI). The PMI solid board 6 is adhered between the lower surface 41 of the first buffer layer 4 and the upper surface 51 of the second buffer layer 5 . Among them, because the material of polymethacrylimide (PMI) is based on copolymer of methacrylic acid (MAA) and methacrylonitrile (MAN), it has good mechanical properties, heat distortion temperature and chemical stability. It is an ideal core material for high-performance sandwich structure composite materials.

The first elastic adhesive layer 70 and the second elastic adhesive layer 80 are respectively cured and molded by materials such as polyolefin elastomer. The thicknesses of the first elastic adhesive layer 70 and the second elastic adhesive layer 80 after molding are respectively Between 0.1~0.3mm. The first friction layer 7 is an aluminum oxide polishing film (lapping film) with a plurality of aluminum oxide (Aluminum oxide) particles on the surface of the first film 71. The maximum height roughness of the aluminum oxide polishing film is between 10 and 20 microns. (µm), when implemented, the alumina particles are used as the first particles 72. The second friction layer 8 is an aluminum oxide polishing film (lapping film) with a plurality of aluminum oxide particles on the surface below the second film 81, and its maximum height roughness is between 10 and 20 microns (µm). During implementation, the alumina particles are used as second particles 82 . The first elastic adhesive layer 70 is pasted downward to combine with the top surface of the first panel 2 , the top surface of the first elastic adhesive layer 70 is pasted upward to combine with the lower surface of the first film 71 ; the second elastic adhesive layer 80 is pasted upward to combine The bottom surface of the second panel 3 and the bottom surface of the second elastic adhesive layer 80 are adhered downward to combine with the upper surface of the second film 81 .

Thereby, when the user hits the pickleball with the front or back side, the combination of two different materials of the first panel 2 or the second panel 3 can provide sufficient rigidity and toughness for hitting; The buffer layer 4 or the second buffer layer 5 can produce buffering and sound-absorbing effects; using PMI solid core board 6 as the main core material structure can produce sufficient support strength and reduce the thickness of the core material; through the third The elastic effect of the first elastic adhesive layer 70 and the second elastic adhesive layer 80 can increase the effects of shock absorption, buffering and sound absorption; and by producing effective friction effects through the first friction layer 7 and the second friction layer 8, it can Allows the pickleball to spin correctly as needed, allowing the user to fully utilize their spin skills when striking.

Please refer to Figure 3, which is a second embodiment of the pickleball racket 1 of the present invention. The difference from the first embodiment is that the first film 71 and the second film 81 are transparent films respectively. The lower surface is printed with a pattern, and the pattern is used as the first printing layer 73; the upper surface of the second film 81 is printed with another pattern, and the other pattern is used as the second printing layer 83, thereby allowing the first printing layer 73 to be printed. The film 71 and the second film 81 respectively protect the first printing layer 73 and the second printing layer 83 to prevent falling off, and at the same time allow the first printing layer 73 and the second printing layer 83 to be visually displayed on the front of the pickleball racket 1 . The racket surface and backhand surface make it more interesting to use.

To sum up, according to the content disclosed above, this invention can indeed achieve the expected purpose, providing a device that can not only produce sufficient tapping intensity, achieve the effect of reducing noise, and reduce the overall thickness to facilitate user control, but also A pickleball racket that can produce an effective friction effect, allowing the pickleball to rotate correctly according to the user's needs, is of great industrial value, and an invention patent application has been filed in accordance with the law.

1: Pickleball racket 2: First panel 21: Lower board surface 22,23:First fiber cloth 3: Second panel 31: Serve the noodles 32,33: Second fiber cloth 4: First buffer layer 41: Lower surface 5: Second buffer layer 51: Upper surface 6:Solid core board 60: racket core 7: First friction layer 70: First elastic adhesive layer 71:First film 72:The first particle 73: First printing layer 8: Second friction layer 80: Second elastic adhesive layer 81:Second film 82:Second particle 83: Second printing layer

﹝Figure 1﹞is a three-dimensional appearance view of the first embodiment of this invention. ﹝Figure 2﹞is the A-A’ cross-sectional view of Figure 1. ﹝Figure 3﹞is an assembled cross-sectional view of the second embodiment of this invention.

1: Pickleball racket

2: First panel

21: Lower board surface

22,23:First fiber cloth

3: Second panel

31: Serve the noodles

32,33: Second fiber cloth

4: First buffer layer

41: Lower surface

5: Second buffer layer

51: Upper surface

6:Solid core board

60: racket core

7: First friction layer

70: First elastic adhesive layer

71:First film

72:The first particle

8: Second friction layer

80: Second elastic adhesive layer

81:Second film

82:Second particle

Claims (10)

A pickleball racket, which has a first panel and a second panel in opposite directions, and a racket core is sandwiched and bonded between a lower panel of the first panel and an upper panel of the second panel; Its characteristics are: The first panel and the second panel are each made of at least one fiber cloth bonded and hardened; The top surface of the first panel is bonded with a first elastic adhesive layer, the top surface of the first elastic adhesive layer is bonded with a first friction layer, the bottom surface of the second panel is bonded with a second elastic adhesive layer, the second elastic adhesive layer The bottom surface of the layer is combined with a second friction layer; and The racket core includes a first buffer layer, a second buffer layer and a solid core plate. The lower surface of the first panel is combined with the first buffer layer, and the upper surface of the second panel is combined with the second Buffer layer, the first buffer layer and the second buffer layer are combined with the solid board. The pickleball racket of claim 1, wherein the first panel includes two first fiber cloths of different materials, and the two first fiber cloths are stacked and bonded to each other. For example, the pickleball racket of claim 2, wherein the two first fiber cloths are a carbon fiber cloth and a glass fiber cloth respectively. Such as the pickleball racket of claim 1, wherein the second panel includes two second fiber cloths of different materials, and the two second fiber cloths are laminated and bonded to each other. For example, the pickleball racket of claim 4, wherein the two second fiber cloths are a carbon fiber cloth and a glass fiber cloth respectively. For example, the pickleball racket of claim 1, wherein the thickness of the first elastic adhesive layer and the second elastic adhesive layer is between 0.1~0.3mm respectively. The pickleball racket of claim 1, wherein the first friction layer is a lapping film with a plurality of first particles on the upper surface of the first film; the second friction layer is a second film with a lower surface on the A polishing film of a plurality of second particles. For example, the pickleball racket of claim 7, wherein the first friction layer and the second friction layer are respectively aluminum oxide polishing films with a maximum height roughness between 10 and 20 microns (µm). The pickleball racket of claim 7, wherein the first film and the second film are respectively transparent films, the lower surface of the first film is bonded with a first printing layer, and the upper surface of the second film is bonded with a second printing layer . For example, the pickleball racket of claim 1, wherein the first buffer layer and the second buffer layer are respectively made of films made of polyvinyl butyral resin (PVB); the solid core board is made of polymethacrylate Flat plate made of Polymethacrylimide (PMI).

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