Table tennis bat bottom plate and preparation method thereof

Abstract

According to the table tennis bat bottom plate and the preparation method thereof, different materials are combined in different areas, and the diversity performance of the bottom plate is improved. The bottom plate comprises the central ball hitting area, the edge control area and the side edge hard area which are respectively made of high-elasticity wood, soft wood, carbon fibers and aramid fiber materials so as to meet different ball hitting requirements. In addition, the bottom plate further comprises a vibration absorption layer, so that vibration during ball hitting is reduced, and the hand feeling is improved. Meanwhile, the balance weight module capable of adjusting the gravity center is arranged in the grab handle of the bottom plate, a user can adjust the balance point of the racket according to the personal playing method, and the use comfort and flexibility are improved.

Description

Technical Field

[0001] The invention belongs to the field of table tennis racket manufacturing, and particularly relates to a table tennis racket bottom plate and a preparation method thereof. Background Art

[0002] At present, the bottom plate of table tennis rackets mainly adopts a single wood or a simple composite material structure. Although it can provide a certain batting speed and control effect, it is insufficient in adapting to different playing styles and batting requirements. For example, it is difficult to achieve a balance between hardness, elasticity, shock absorption and feel of traditional bottom plates, and the center of gravity of the bottom plate is fixed, which is difficult to adjust according to the needs of users, resulting in the performance of players in different game scenarios being limited. Therefore, how to improve the versatility, adjustability and batting feedback of the racket has become an important issue in table tennis racket technology. Summary of the invention

[0003] In order to solve the above problems, the present invention discloses a table tennis racket bottom plate and a preparation method thereof, which improves the diverse performance of the bottom plate by combining different materials in different areas. The bottom plate of the present invention includes a central hitting area, an edge control area and a side hard area, which are respectively composed of high-elastic wood, soft wood, carbon fiber and aramid fiber materials to meet different hitting requirements. In addition, the bottom plate also includes a vibration absorbing layer to reduce vibration during hitting and improve the feel. At the same time, a weight module with an adjustable center of gravity is provided inside the handle of the bottom plate, and the user can adjust the balance point of the racket according to the personal playing style to improve the comfort and flexibility of use.

[0004] To achieve the above object, the technical solution of the present invention is as follows: A table tennis racket bottom plate comprises a central hitting area, an edge control area, a side hard area and a grip, wherein the central hitting area is composed of two layers of high-elastic wood and a layer of carbon fiber material sandwiched therebetween, wherein the carbon fiber material is used to enhance the speed and power when hitting the ball; the high-elastic wood is Ayous or cypress, and is used to provide better control and rotation effect; the edge control area is located at the periphery of the central hitting area, and is composed of balsa or paulownia; the side hard area is located at the outermost circle of the racket, and comprises aramid fiber material, and is used to increase the rigidity and durability of the bottom plate.

[0005] As an improvement of the present invention, the thickness of the carbon fiber layer in the central hitting area is 0.2-0.3 mm, which can effectively improve the speed and stability of hitting the ball; the thickness of the wood layer in the edge control area is 0.5-1.0 mm, providing moderate softness and suitable for the manipulation of spinning balls.

[0006] As an improvement of the present invention, the bottom plate of the table tennis racket also includes a shock absorbing layer, which is located between the wood layers of the central hitting area and the edge control area. The shock absorbing layer is a soft rubber material and is used to reduce vibration during hitting and improve the feel.

[0007] As an improvement of the present invention, the handle further includes an embedded center of gravity adjustment mechanism, which includes a rotary regulator and a plurality of weight modules. The user adjusts the position of the weight module by the rotary regulator to change the center of gravity of the racket.

[0008] As an improvement of the present invention, the outer layer of the handle is made of hardwood, and the inner layer includes an aluminum alloy frame, and the aluminum alloy frame is used to increase the rigidity and durability of the handle.

[0009] The present invention also provides a method for preparing a table tennis racket bottom plate, comprising the following steps: S1. Material preparation: Select high elastic wood, soft wood, carbon fiber material, aramid fiber material, soft rubber material and aluminum alloy frame; S2. Cutting and forming: The highly elastic wood, soft wood, carbon fiber and aramid fiber materials are cut into corresponding sizes and shapes according to the partition design of the bottom plate of the table tennis racket; S3. Partition bonding: The materials of the central hitting area, edge control area and side hard area are layered and bonded in sequence, and a shock absorbing layer is added. The bonding process uses high-temperature pressing technology, the pressing temperature is 70~80℃, and the pressing time is 10~15 minutes; S4. Handle assembly: embed the aluminum alloy frame of the handle into the outer hardwood of the handle, install the weight module with adjustable center of gravity, and fix it to the base plate body through threads or buckles; S5. Surface treatment: The bonded base plate is sanded to ensure a smooth surface and then coated to increase durability and protection.

[0010] As an improvement of the present invention, in step S1, the high elastic wood is Ayous or cypress, the soft wood is balsa or paulownia, and the thickness of the carbon fiber material is 0.2 mm to 0.3 mm.

[0011] As an improvement of the present invention, in step S3, the shock absorbing layer is made of soft rubber material and is located between the wood layers in the central hitting area and the edge control area to reduce vibration during hitting.

[0012] As an improvement of the present invention, in step S4, the weight module with adjustable center of gravity is adjusted by a rotary regulator at the end of the handle, so as to change the center of gravity position of the racket.

[0013] The beneficial effects of the present invention are: The table tennis racket bottom plate provided by the present invention uses different materials to form the central hitting area, edge control area and side hard area. The multi-area zoning design can provide the best elasticity, hardness and control effect for different hitting positions, meeting the personalized needs of different players. By introducing a soft rubber vibration absorption layer between the hitting surface and the control area, the hand vibration during hitting is significantly reduced, and the overall comfort of use is improved. A center of gravity adjustment device is set inside the grip, and the user can flexibly adjust the center of gravity position of the racket according to his or her own playing style, which improves the adaptability and operability of the racket. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of a handle of the present invention.

[0016] List of Figure Symbols: 1. Central hitting area; 2. Edge control area; 3. Side hard area; 4. Handle; 5. Shock absorption layer; 6. Center of gravity adjustment mechanism. DETAILED DESCRIPTION

[0017] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0018] Embodiment 1 Embodiment 1 of the present invention provides a table tennis racket bottom plate, comprising a central hitting area, an edge control area, a side hard area, and a grip, wherein the central hitting area is composed of two layers of high-elastic wood and a layer of carbon fiber material sandwiched therebetween, and the carbon fiber material is used to enhance the speed and power when hitting the ball; the high-elastic wood is Ayous or cypress, and is used to provide better control and rotation effect; the edge control area is located at the periphery of the central hitting area, and the edge control area is composed of balsa or paulownia; the side hard area is located at the outermost circle of the racket, and the side hard area includes aramid fiber material, and is used to increase the rigidity and durability of the bottom plate.

[0019] The thickness of the carbon fiber layer in the central hitting area of ​​the present invention is 0.2-0.3 mm, which can effectively improve the speed and stability of hitting the ball; the thickness of the wood layer in the edge control area is 0.5-1.0 mm, which provides moderate softness and is suitable for the manipulation of spinning balls.

[0020] The table tennis racket bottom plate of the present invention also includes a shock absorbing layer, which is located between the wood layers in the central hitting area and the edge control area. The shock absorbing layer is a soft rubber material and is used to reduce vibration when hitting the ball and improve the hand feel.

[0021] The handle of the present invention also includes a built-in center of gravity adjustment mechanism, which includes a rotary regulator and a plurality of weight modules. The user adjusts the position of the weight module by rotating the regulator to change the center of gravity of the racket.

[0022] The outer layer of the handle of the present invention is made of hardwood, and the inner layer includes an aluminum alloy frame, and the aluminum alloy frame is used to increase the rigidity and durability of the handle.

[0023] Embodiment 2 Embodiment 2 is a method for preparing a table tennis racket bottom plate based on embodiment 1, comprising the following steps: S1. Material preparation: Select high elastic wood, soft wood, carbon fiber material, aramid fiber material, soft rubber material and aluminum alloy frame; S2. Cutting and forming: The highly elastic wood, soft wood, carbon fiber and aramid fiber materials are cut into corresponding sizes and shapes according to the partition design of the bottom plate of the table tennis racket; S3. Partition bonding: The materials of the central hitting area, edge control area and side hard area are layered and bonded in sequence, and a shock absorbing layer is added. The bonding process uses high-temperature pressing technology, the pressing temperature is 70~80℃, and the pressing time is 10~15 minutes; S4. Handle assembly: embed the aluminum alloy frame of the handle into the outer hardwood of the handle, install the weight module with adjustable center of gravity, and fix it to the base plate body through threads or buckles; S5. Surface treatment: The bonded base plate is sanded to ensure a smooth surface and then coated to increase durability and protection.

[0024] In step S1 of the present invention, the high elastic wood is Ayous or cypress, the soft wood is balsa or paulownia, and the thickness of the carbon fiber material is 0.2 mm to 0.3 mm.

[0025] In step S3 of the present invention, the shock absorbing layer is a soft rubber material, and is located between the wood layers in the central hitting area and the edge control area, and is used to reduce the vibration when hitting the ball.

[0026] In step S4 of the present invention, the weight module with adjustable center of gravity is adjusted by a rotary regulator at the end of the handle, so as to change the center of gravity position of the racket.

[0027] Comparative experiment The table tennis racket bottom plate prepared by the second embodiment of the present invention was compared with the conventional single-material bottom plate in terms of hitting speed, feel, vibration absorption and center of gravity adjustment. In the experiment, three players with different playing styles were tested and the performance data of the following two bottom plates were compared: parameter Embodiment 2 Bottom plate Conventional base plate Hitting speed (m / s) 18.5 16.0 Vibration absorption efficiency (%) 85 65 Center of gravity adjustment range (cm) 3 No adjustment function Control rating (out of 10 points) 9.2 7.8 The vibration absorption rate of the bottom plate of an ordinary table tennis racket is between 60% and 70%, and the hitting speed is usually 14m / s to 16m / s. Due to the partition material and vibration absorption design, the bottom plate of the present invention increases the hitting speed to 18.5m / s, and the vibration absorption rate reaches 85%, which is significantly better than the traditional bottom plate. The experimental data show that the bottom plate of the table tennis racket of the present invention has significant advantages in terms of hitting performance, vibration absorption, control force and adjustable center of gravity.

[0028] It should be noted that the drawings only illustrate the technical ideas of the present invention, and the protection scope of the present invention cannot be limited by this shape. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. A table tennis racket bottom plate, comprising a central hitting area, an edge control area, a side hard area, and a grip, characterized in that: The central hitting area is composed of two layers of high-elastic wood and a layer of carbon fiber material sandwiched therebetween, the high-elastic wood is Ayous or cypress; the edge control area is located at the periphery of the central hitting area, the edge control area is composed of balsa or paulownia; the side hard area is located at the outermost circle of the racket, and the side hard area includes aramid fiber material.

2. A table tennis racket bottom plate according to claim 1, characterized in that: The thickness of the carbon fiber layer in the central hitting area is 0.2-0.3 mm, and the thickness of the wood layer in the edge control area is 0.5-1.0 mm.

3. A table tennis racket bottom plate according to claim 1, characterized in that: The table tennis racket bottom plate also includes a shock absorbing layer, which is located between the wood layers of the central hitting area and the edge control area, and the shock absorbing layer is made of soft rubber material.

4. A table tennis racket bottom plate according to any one of claims 1 to 3, characterized in that: The handle also includes an embedded center of gravity adjustment mechanism, which includes a rotating regulator and a plurality of weight modules. The user adjusts the position of the weight module by rotating the regulator to change the center of gravity of the racket.

5. A table tennis racket bottom plate according to claim 4, characterized in that: The outer layer of the handle is made of hardwood, and the inner layer includes an aluminum alloy frame.

6. A method for preparing a table tennis racket bottom plate according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Material preparation: Select high elastic wood, soft wood, carbon fiber material, aramid fiber material, soft rubber material and aluminum alloy frame; S2. Cutting and forming: The highly elastic wood, soft wood, carbon fiber and aramid fiber materials are cut into corresponding sizes and shapes according to the partition design of the bottom plate of the table tennis racket; S3. Partition bonding: The materials of the central hitting area, edge control area and side hard area are layered and bonded in sequence, and a shock absorbing layer is added. The bonding process uses high-temperature pressing technology, the pressing temperature is 70~80℃, and the pressing time is 10~15 minutes; S4. Handle assembly: embed the aluminum alloy frame of the handle into the outer hardwood of the handle, install the weight module with adjustable center of gravity, and fix it to the base plate body through threads or buckles; S5. Surface treatment: The bonded base plate is sanded to ensure a smooth surface and then coated to increase durability and protection.

7. The method for preparing a table tennis racket bottom plate according to claim 6, characterized in that: In the step S1, the high elastic wood is Ayous or cypress, the soft wood is balsa or paulownia, and the thickness of the carbon fiber material is 0.2 mm to 0.3 mm.

8. The method for preparing a table tennis racket bottom plate according to claim 6, characterized in that: In step S3, the shock absorbing layer is made of soft rubber material and is located between the wood layers in the central hitting area and the edge control area to reduce the vibration when hitting the ball.

9. The method for preparing a table tennis racket bottom plate according to claim 6, characterized in that: In step S4, the weight module with adjustable center of gravity is adjusted by a rotary regulator at the end of the handle, so as to change the center of gravity position of the racket.

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