Plate-type tennis racket

Abstract

The utility model provides a plate-type tennis racket. The plate-type tennis racket comprises a first surface layer, a second surface layer, a middle layer and a hardened structure, the first surface layer comprises a first ball hitting area preformed material, and the second surface layer comprises a second ball hitting area preformed material. The hardened structure surrounds and is combined with the outer edges of the first and second ball hitting area preforms and the middle layer. Wherein the first or second ball hitting area preformed material is made of a hardened thermosetting material. The hardened structure is provided with two surfaces which are oppositely arranged and are flush with the surfaces of the first ball hitting area preformed material and the second ball hitting area preformed material. According to the structural design of the plate-type tennis racket, the surface of the hardened structure is flush with the surface of the first ball hitting area preformed material and the surface of the second ball hitting area preformed material, so that the ball hitting area of the plate-type tennis racket cannot be reduced, and the plate-type tennis racket has a large ball hitting area.

Description

Technical Field

[0001] The utility model relates to a plate tennis racket, in particular to a plate tennis racket with a hardening structure arranged on the outer edge of a ball hitting part of the racket. Background Art

[0002] Paddle tennis is a sport similar to tennis, in which a ball is hit with a racket. Paddle tennis can be played in singles or doubles. The amount of activity and exercise required is less than that of tennis, so it is suitable for people of all ages. In recent years, it has gradually become popular and loved by the general public.

[0003] The manufacturing method of the racket used in traditional paddle tennis (also called pickleball racket) is to first cut the honeycomb board into the shape of the racket, then print on the racket face of the paddle tennis racket, and finally use a bumper guard to cover the outer edge of the honeycomb board, and glue the bumper guard to the outer edge of the honeycomb board. Although the paddle tennis racket made by this manufacturing method is relatively low in cost, the bumper guard is covered on the outer edge of the honeycomb board and protrudes from the hitting surface of the paddle tennis racket, so on the one hand, part of the hitting area of ​​the paddle tennis racket is sacrificed; on the other hand, when the player hits the ball, if the hitting position is not controlled well, the protruding bumper guard of the paddle tennis racket may hit the ball, causing the ball to be hit in an unexpected direction and force. Utility Model Content

[0004] One of the purposes of the utility model is to provide a new paddle tennis racket with a larger hitting area.

[0005] Therefore, a paddle tennis racket provided according to the following embodiment includes a first surface layer, a second surface layer, an intermediate layer and a hardened structure. The first surface layer includes a first hitting area preform, and the second surface layer includes a second hitting area preform. The intermediate layer is overlapped between the first hitting area preform and the second hitting area preform. The hardened structure surrounds and is combined with the first hitting area preform, the second hitting area preform and the outer edge of the intermediate layer. The first hitting area preform or the second hitting area preform is made of hardened thermosetting material. The first hitting area preform has a first surface relative to the intermediate layer, the second hitting area preform has a second surface relative to the intermediate layer, and the hardened structure has a third surface and a fourth surface arranged opposite to each other, the first surface is flush with the third surface, and the second surface is flush with the fourth surface.

[0006] Through the structural design of the paddle tennis racket, since the third surface and the fourth surface of the hardened structure are flush with the first surface of the first surface layer and the second surface of the second surface layer respectively, the hitting area of ​​the paddle tennis racket will not be reduced due to the use of traditional protective strips, and thus has a larger hitting area.

[0007] In one aspect, the first hitting area preform and the second hitting area preform are approximately rectangular and have a long side and a short side, the length of the short side is between 7 and 8.75 inches, the length of the long side is between 9.5 and 12 inches, and the length of the grip portion is between 4 and 5.5 inches.

[0008] In another aspect, the hardened structure is formed by hardening the carbon fiber composite material under heating and pressure, so that the paddle tennis racket can be lightweight and have high structural strength.

[0009] In another aspect, the middle layer has a honeycomb shape in cross-section.

[0010] In another aspect, in a cross-sectional view of the paddle tennis racket, outer edges of the first ball striking area preform, the second ball striking area preform, and the middle layer are cut flush.

[0011] In another aspect, the first ball hitting area preform or the second ball hitting area preform is made of pre-hardened thermosetting plastic, so that the paddle tennis racket has not only good structural strength but also better hitting feel and control.

[0012] In another aspect, the first ball striking area preform and the second ball striking area preform can directly contact the middle layer. In some cases, one or more interlayer structures may be provided between the first ball striking area preform and the middle layer, or between the second ball striking area preform and the middle layer.

[0013] In another aspect, the first ball striking area preform and the second ball striking area preform may be made of the same or different thermosetting materials.

[0014] In another aspect, the first surface layer further includes a first grip preform, and the second surface layer further includes a second grip preform, the first grip preform is connected to the first hitting area preform, and the first grip preform and the first hitting area preform are made of the same material, and the second grip preform is connected to the second hitting area preform, and the second grip preform and the second hitting area preform are made of the same material.

[0015] In another aspect, the stiffening structure surrounds and is bonded to outer edges of the first grip preform and the second grip preform.

[0016] In another aspect, the first surface layer includes a first sublayer and a second sublayer, the first sublayer is formed by heating and pressurizing a carbon fiber composite material, and the second sublayer is made of hardened thermosetting plastic, and the second sublayer is located between the middle layer and the first sublayer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a paddle tennis racket of an embodiment;

[0018] Figure 2 yes Figure 1 The top view of

[0019] Figure 3 yes Figure 1 Exploded diagram of

[0020] Figure 4 is a partial perspective view of a hitting part of a paddle tennis racket; and

[0021] Figure 5 yes Figure 1 Section view drawn along section line 5-5.

[0022] In the above drawings, the meanings of the reference numerals are as follows:

[0023] 1: Paddle tennis racket;

[0024] 10: Batting department;

[0025] 11: long side;

[0026] 12: short side;

[0027] 13: thickness;

[0028] 14: first surface layer;

[0029] 141: first surface;

[0030] 142: a preformed material of a first hitting area;

[0031] 143: a first handle preform;

[0032] 15: second surface layer;

[0033] 151: second surface;

[0034] 152: preformed material of the second hitting area;

[0035] 153: a second handle preform;

[0036] 16: middle layer;

[0037] 161: regular hexagonal hole;

[0038] 162: hitting area core material;

[0039] 163: Grip core material;

[0040] 17: Hardened structure;

[0041] 171: third surface;

[0042] 172: fourth surface;

[0043] 20: grip portion;

[0044] 24: handle;

[0045] 25: Grip tape. DETAILED DESCRIPTION

[0046] First of all, it should be noted that the technical features provided by the utility model are not limited to the specific structures, uses and applications described in the embodiments. The terms used in the description are all illustrative descriptive terms that can be understood by technicians in the relevant technical field. The directional descriptive terms such as "front", "upper", "lower", "back", "left", "right", "top", "bottom", "inside", and "outside" mentioned in this specification are only illustrative descriptive terms based on the normal use direction, and are not intended to limit the scope of protection.

[0047] In order to explain the technical features of the present invention in detail, the following embodiments are given and described in conjunction with the accompanying drawings.

[0048] The detailed structure and features of the paddle tennis racket will be described in the following embodiments. However, it should be understood that the embodiments and drawings described below are only for illustrative purposes and should not be used to limit the scope of protection of the present invention.

[0049] like Figures 1 to 5 As shown, this embodiment provides a paddle tennis racket 1, which includes a first surface layer 14, a second surface layer 15, an intermediate layer 16 and a hardening structure 17. Please refer to Figures 3 to 5The first surface layer 14 includes a first surface 141 opposite to the middle layer 16, a first ball hitting area preform 142 and a first grip preform 143. The second surface layer 15 has a second surface 151 opposite to the middle layer 16, a second ball hitting area preform 152 and a second grip preform 153. The middle layer 16 includes a ball hitting area core material 162 and a grip core material 163. The first surface 141 and the second surface 151 are located at the outermost side of the paddle tennis racket 1. The first surface 141 and the second surface 151 can be used as the forehand and backhand surfaces of the paddle tennis racket 1, or as the backhand and forehand surfaces of the paddle tennis racket 1, respectively. The first ball hitting area preform 142 and the first grip preform 143 are made of the same material and the first ball hitting area preform 142 is integrally connected to the first grip preform 143. Similarly, the second hitting area preform 152 and the second grip preform 153 are made of the same material and the second hitting area preform 152 is integrally connected to the second grip preform 153 , and the hitting area core material 162 and the grip core material 163 are made of the same material and the hitting area core material 162 is integrally connected to the grip core material 163 .

[0050] The first surface layer 14 or the second surface layer 15 is made of a pre-hardened thermosetting material, which may be a thermosetting fiber material, such as a thermosetting carbon fiber material, a thermosetting glass fiber material, or a thermosetting Kevlar fiber material. The appearance of the first surface layer 14 and the second surface layer 15 is similar to the middle layer 16, so in a cross-sectional view of the paddle tennis racket 1 (such as Figure 5 ), the outer edges of the first surface layer 14, the second surface layer 15 and the middle layer 16 are cut flush. The middle layer 16 is overlapped between the first surface layer 14 and the second surface layer 15 (that is, the hitting area core material 162 is overlapped between the first hitting area preformed material 142 and the second hitting area preformed material 152), and the first hitting area preformed material 142 of the first surface layer 14 and the second hitting area preformed material 152 of the second surface layer 15 are both directly in contact with the opposite sides of the hitting area core material 162 of the middle layer 16. The middle layer 16 is a honeycomb plate, and the middle layer 16 has a plurality of regular hexagonal holes 161 connected to each other, so that the cross section of the middle layer 16 is honeycomb-shaped, and each regular hexagonal hole 161 passes through the opposite sides of the middle layer 16. The material of the middle layer 16 can be polypropylene (PP) or aluminum.

[0051] In some cases, the first surface layer 14 and the second surface layer 15 can be made of the same thermosetting material, so that the strength of the hitting surface (i.e., the forehand surface or the backhand surface) of the hitting part 10 is better, thereby enhancing the striking strength. In some cases, the first surface layer 14 and the second surface layer 15 can also be made of different thermosetting materials, or made of a pre-hardened thermosetting material and a pre-hardened thermoplastic material respectively, so that the forehand surface or the backhand surface of the hitting surface of the paddle tennis racket 1 can have different striking strengths. In some cases, the first surface layer 14 and the second surface layer 15 may not directly contact the middle layer 16, for example, other layered structures are provided between the first surface layer 14 and the middle layer 16 or between the second surface layer 15 and the middle layer 16. The first surface layer 14 or the second surface layer 15 may also have multiple sub-layers. For example, the first surface layer 14 includes a first sub-layer (not shown) and a second sub-layer (not shown). The first sub-layer is formed by heating and pressurizing a carbon fiber composite material and hardening it, and the second sub-layer is made of hardened thermosetting plastic. The second sub-layer is located between the middle layer 16 and the first sub-layer, so that the entire paddle tennis racket 1 can have different structural strengths and playing feels.

[0052] The hardening structure 17 surrounds and is integrally bonded to the outer edges of the first surface layer 14, the second surface layer 15, and the middle layer 16. Specifically, the hardening structure 17 surrounds and connects the outer edges of the first ball striking area preform 142 and the first grip preform 143 of the first surface layer 14, the second ball striking area preform 152 and the second grip preform 153 of the second surface layer 15, and the ball striking area core material 162 and the grip core material 163 of the middle layer 16. The hardening structure 17 is formed by hardening the carbon fiber composite material by heating and pressurizing. For example, in terms of technology, the outer periphery of the stacked first surface layer 14, the middle layer 16 and the second surface layer 15 is firstly coated with multiple layers of carbon fiber reinforced composite material (such as carbon cloth), and the carbon fiber composite material generally contains materials such as carbon fiber and epoxy resin. Then, the first surface layer 14, the middle layer 16 and the second surface layer 15 coated with the carbon fiber composite material are placed in a mold, and the carbon fiber composite material is pressurized and heated, so that the carbon fiber composite material softens after being pressurized and heated in the mold, and then a bridging reaction is generated to solidify and form, and the first surface layer 14, the middle layer 16 and the second surface layer 15 are combined into one. The cured hardened structure 17 together with the first surface layer 14, the second surface layer 15 and the middle layer 16 are as shown in FIG. Figure 4As shown. The cured hardened structure 17 has a third surface 171 and a fourth surface 172 that are opposite to each other, the first surface 141 of the first surface layer 14 is flush with the third surface 171 of the hardened structure 17, and the second surface 151 of the second surface layer 15 is flush with the fourth surface 172 of the hardened structure 17. Therefore, the first surface 141 together with the third surface 171 can jointly form a complete plane as a striking surface (the second surface 151 and the fourth surface 172 are the same). At this time, the first hitting area preform 142, the hitting area core material 162, the second hitting area preform 152, and the portion of the hardened structure 17 that is cured and connected to the first hitting area preform 142, the hitting area core material 162, and the second hitting area preform 152 jointly define a hitting portion 10 of the paddle tennis racket 1 (see Figure 1 ).

[0053] Please go back Figure 1 and Figure 2 The hitting part 10 is a part of the paddle tennis racket 1 for hitting the ball. Generally, the hitting part 10 is roughly rectangular and has a long side 11 and a short side 12. The length of the short side 12 is between 7 and 8.75 inches, the length of the long side 11 is between 9.5 and 12 inches, and the length of the grip part 20 is between 4 and 5.5 inches. The overall thickness 13 of the hitting part 10 is between 22 and 38 millimeters (mm), thereby meeting the specifications of the paddle tennis racket 1.

[0054] The paddle tennis racket 1 also has a grip portion 20, which includes a first grip preform 143, a grip core 163, a second grip preform 153, a portion of the hardened structure 17 that is cured and connects the first grip preform 143, the grip core 163, and the second grip preform 153, and a grip 24. A plug hole (not shown) is provided in the center of the grip 24, so that the ends of the first grip preform 143, the grip core 163, and the second grip preform 153 together with a portion of the hardened structure 17 can be inserted into and fixed in the plug hole of the grip 24. In addition, the grip portion 20 is usually covered with a grip tape 25 to prevent slipping and shock.

[0055] Through the structural design of the paddle tennis racket 1 of this embodiment, compared with the traditional paddle tennis racket, since the paddle tennis racket 1 of this embodiment no longer uses the traditional protective strip but uses the hardening structure 17 for fixing, the third surface 171 and the fourth surface 172 of the hardening structure 17 are flush with the first surface 141 of the first surface layer 14 and the second surface 151 of the second surface layer 15 respectively, so the third surface 171 and the fourth surface 172 of the hardening structure 17 can form an additional hitting area, so that the hitting area of ​​the paddle tennis racket 1 of this embodiment will not be reduced due to the use of the traditional protective strip, but the hitting area can be larger, so that the paddle tennis racket 1 as a whole can have a larger hitting area. In addition, since the first surface layer 14 and the second surface layer 15 are both made of pre-cured thermosetting materials, the racket face as a whole has good structural strength, and the paddle tennis racket 1 can also have a better hitting feeling and control. Furthermore, in the heating and pressurizing process of the hardening structure 17, the first surface layer 14 and the second surface layer 15 have been cured in advance, and thus have good structural strength and will not be sunken into the regular hexagonal hole 161 of the middle layer 16, so the hitting surface of the paddle tennis racket 1 will not be deformed, thereby effectively improving the qualified rate of the paddle tennis racket 1, reducing the overall weight of the paddle tennis racket 1, and saving the manpower and time consumed by the subsequent repainting due to the uneven surface of the paddle tennis racket 1. The above are all the characteristics of the paddle tennis racket 1 of this embodiment.

[0056] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paddle tennis racket, characterized in that: Contains: A first surface layer including a first hitting area preform; A second surface layer comprising a second hitting area preform; an intermediate layer, laminated between the first ball hitting area preform and the second ball hitting area preform; and a hardening structure surrounding and bonding to the first ball striking area preform, the second ball striking area preform and the outer edge of the middle layer; Wherein, the first ball striking area preformed material or the second ball striking area preformed material is made of hardened thermosetting material; Among them, the first hitting area preform has a first surface relative to the middle layer, the second hitting area preform has a second surface relative to the middle layer, the hardened structure has a third surface and a fourth surface arranged opposite to each other, the first surface is flush with the third surface, and the second surface is flush with the fourth surface.

2. The padel tennis racket according to claim 1, characterized in that: The hardened structure is formed by hardening the carbon fiber composite material under heating and pressure.

3. The padel tennis racket according to claim 1, characterized in that: The cross section of the middle layer is honeycomb-shaped.

4. The padel tennis racket according to claim 1, characterized in that: In a cross-sectional view of the paddle tennis racket, outer edges of the first ball hitting area preform, the second ball hitting area preform, and the middle layer are cut flush.

5. The padel tennis racket according to claim 1, characterized in that: The first ball striking area preform material and the second ball striking area preform material are made of pre-hardened thermosetting material.

6. The padel tennis racket according to claim 1, characterized in that: The first hitting area preform includes a first sublayer and a second sublayer. The first sublayer is formed by heating and pressurizing a carbon fiber composite material and hardening it. The second sublayer is made of hardened thermosetting plastic and is located between the middle layer and the first sublayer.

7. The padel tennis racket according to claim 1, characterized in that: The first ball striking area preform and the second ball striking area preform both directly contact the middle layer.

8. The padel tennis racket according to claim 1, characterized in that: The first ball striking area preformed material and the second ball striking area preformed material are made of different thermosetting materials.

9. The padel tennis racket according to claim 1, characterized in that: The first surface layer also includes a first grip preform, and the second surface layer also includes a second grip preform. The first grip preform is connected to the first hitting area preform, and the first grip preform and the first hitting area preform are made of the same material. The second grip preform is connected to the second hitting area preform, and the second grip preform and the second hitting area preform are made of the same material.

10. The padel tennis racket according to claim 9, characterized in that: The hardening structure surrounds and is combined with outer edges of the first handle preform and the second handle preform.

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