Badminton racket structure based on 3D printing
By using a 3D-printed metal body covering structure on the badminton racket shaft, the problem of uneven stress distribution in different parts of the shaft is solved, extending the racket's service life.
Patent Information
- Application Number
- CN202520318538.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The physical parameters such as wall thickness, average density, and hardness are the same in all parts of the shaft of existing badminton rackets, which cannot meet the stress requirements of different parts, resulting in rackets that are easy to damage and have a short service life.
Using a 3D-printed metal body, physical parameters such as wall thickness, average density, and hardness are set at various locations in the central tube according to requirements. The customized 3D-printed metal body is used to cover the inner tube, core, or inner sleeve, forming a multi-layer structure to adapt to the stress requirements at different locations.
It effectively prevents badminton rackets from being damaged due to uneven force, and significantly extends their service life.
Smart Images
Figure CN223861252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sports equipment, and in particular to a badminton racket structure based on 3D printing. Background Technology
[0002] Racquets (such as badminton rackets and tennis rackets) are high-power sports equipment characterized by: less material used, higher net tension on the frame, and greater deformation of the shaft upon impact. World-renowned brands in the field of high-performance badminton and tennis rackets strive for breakthroughs in manufacturing processes and structural design to lead the market.
[0003] Taking a badminton racket as an example, a badminton racket generally consists of a frame, a handle, and a shaft connecting the frame and the handle. The length of a badminton racket does not exceed 68 centimeters, of which the handle and shaft length does not exceed 42 centimeters, the frame length does not exceed 25 centimeters, and the width is 20 centimeters. With the development of science and technology, rackets are developing towards lighter weight, stiffer frames, more flexible shafts, and lower air resistance.
[0004] Currently, badminton racket shafts are generally solid or hollow, made of materials such as metal or carbon fiber. During a swing, the forces acting on different parts of the shaft vary, and different groups (elderly, middle-aged, and teenagers, etc.) have significant differences in swing angle and force, making these differences even more pronounced. However, with existing technology, the physical parameters such as wall thickness, average density, and hardness are uniform across all parts of the shaft, which cannot meet the demands of varying forces acting on different parts of the shaft during use. This leads to rackets being prone to damage and having a short lifespan. Therefore, it is necessary to improve current badminton racket technology. Utility Model Content
[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a badminton racket structure based on 3D printing, which can effectively solve the problems of existing badminton rackets being easily damaged and having a short service life.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A badminton racket structure based on 3D printing includes a frame, a shaft, and a handle; the front end of the shaft is fixedly connected to the rear end of the frame, and the front end of the handle is fixedly connected to the rear end of the shaft; the shaft includes at least a main body, which is made of metal and is formed by customized 3D printing.
[0008] As a preferred embodiment, the main body is made of aluminum-titanium.
[0009] As a preferred embodiment, the middle tube also includes an inner tube, which is made of metal and is formed by stretching, with the main body forming and covering the outside of the inner tube.
[0010] As a preferred embodiment, the central tube further includes a core, which is a solid metal structure, and the main body is formed and covered outside the core.
[0011] As a preferred embodiment, the middle tube further includes an inner core and an inner sleeve. The inner core is a solid carbon fiber structure, and the inner sleeve is made of metal. The inner sleeve is fitted outside the inner core, and the main body is formed and covers the outer side of the inner sleeve.
[0012] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:
[0013] By using metal for the main body and customizing it with 3D printing, the material can be customized with different wall thicknesses, average densities, hardness, and other physical parameters at various locations on the shaft to meet the different stress requirements of the racket during use. This effectively prevents the racket from being easily damaged and greatly extends its service life.
[0014] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0015] Figure 1 This is an overall front perspective view of a preferred embodiment of the present invention;
[0016] Figure 2 yes Figure 1 Cross-sectional view along the AA direction;
[0017] Figure 3 This is a partial cross-sectional view of another type of central tube in a preferred embodiment of this utility model;
[0018] Figure 4 This is a partial cross-sectional view of another type of central tube in a preferred embodiment of the present invention.
[0019] Explanation of reference numerals in the attached diagram:
[0020] 10. Frame 20. Shaft
[0021] 21. Main body 22. Inner tube
[0022] 23. Core 24. Inner Core
[0023] 25. Inner sleeve; 30. Handle. Detailed Implementation
[0024] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a frame 10, a middle tube 20, and a handle 30.
[0025] The front end of the central tube 20 is fixedly connected to the rear end of the frame 10, and the front end of the handle 30 is fixedly connected to the rear end of the central tube 20. The central tube 20 includes at least a main body 21, which is made of metal and is formed by customized 3D printing. In this embodiment, the main body 21 is made of aluminum-titanium, which is lightweight and has good strength.
[0026] like Figure 2 As shown, in one embodiment, the middle tube 20 further includes an inner tube 22, which is made of metal and is formed by stretching. The main body 21 is formed and covers the inner tube 22. The inner tube 22 is made of metal such as aluminum or aluminum alloy. Lightweight and high-strength metal materials can be selected according to actual needs, without limitation. Furthermore, the outer contour of the inner tube 22 is non-circular to prevent the main body 21 from rotating relative to the inner tube 22, making the forming and bonding of the main body 21 and the inner tube 22 more secure. During manufacturing, the inner tube 22 is first formed by stretching. Then, according to customized needs (such as the stress and comfort at various positions of the middle tube), a suitable metal material is selected and the corresponding printing path is designed. The main body 21 is 3D printed on the outer periphery of the inner tube 22, thus producing the middle tube 20.
[0027] like Figure 3 As shown, in another embodiment, the central tube 20 further includes a core 23, which is a solid metal structure, and the main body 21 is molded and covers the core 23. The core 23 is made of metal such as aluminum or aluminum alloy. Lightweight and high-strength metal materials can be selected according to actual needs, without limitation. Furthermore, the outer contour of the core 23 is non-circular to prevent the main body 21 from rotating relative to the core 23, making the molding and bonding of the main body 21 and the core 23 more secure. During manufacturing, the core 23 is first molded. Then, according to customized needs (such as the stress and comfort at various positions of the central tube), a suitable metal material is selected and the corresponding printing path is designed. The main body 21 is 3D printed on the outer periphery of the core 23, thus producing the central tube 20.
[0028] like Figure 4As shown, in another embodiment, the central tube 20 further includes an inner core 24 and an inner sleeve 25. The inner core 24 is a solid carbon fiber structure, and the inner sleeve 25 is made of metal. The inner sleeve 25 is disposed outside the inner core 24, and the main body 21 is molded and covers the inner sleeve 25, resulting in better structural strength. Furthermore, the outer contour of the inner core 24 is non-circular to prevent the inner sleeve 25 from rotating relative to the inner core 24, making the molding and bonding of the inner sleeve 25 and the inner core 24 more secure. In addition, the inner sleeve 25 is made of aluminum or aluminum alloy, etc., and a lightweight and high-strength metal material can be selected according to actual usage needs, without limitation. The outer contour of the inner sleeve 25 is non-circular to prevent the main body 21 from rotating relative to the inner sleeve 25, making the molding and bonding of the main body 21 and the inner sleeve 25 more secure. During the manufacturing process, the inner core 24 is first formed, and an inner sleeve 25 is then placed on the inner core 24. Then, according to the customized needs (such as the stress and comfort of various positions of the middle tube), a suitable metal material is selected and the corresponding printing path is designed. The main body 21 is 3D printed on the outer periphery of the inner core 24, thus producing the middle tube 20.
[0029] The key design feature of this invention is that by using metal as the main body and customizing it through 3D printing, the material with appropriate wall thickness, average density, hardness, and other physical parameters can be set at various locations on the shaft according to customized needs. This satisfies the different stress requirements at different locations on the shaft during use, effectively preventing the badminton racket from being easily damaged and greatly extending its service life.
[0030] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A badminton racket structure based on 3D printing, comprising a frame, a shaft, and a handle; the front end of the shaft is fixedly connected to the rear end of the frame, and the front end of the handle is fixedly connected to the rear end of the shaft; characterized in that: The central tube includes at least a main body, which is made of metal and is formed by custom 3D printing.
2. The badminton racket structure based on 3D printing according to claim 1, characterized in that: The main body is made of aluminum-titanium.
3. The badminton racket structure based on 3D printing according to claim 1, characterized in that: The middle tube also includes an inner tube, which is made of metal and is formed by stretching. The main body is formed and covers the outside of the inner tube.
4. The badminton racket structure based on 3D printing according to claim 1, characterized in that: The central tube also includes a core, which is a solid metal structure, and the main body is formed and covered outside the core.
5. The badminton racket structure based on 3D printing according to claim 1, characterized in that: The middle tube also includes an inner core and an inner sleeve. The inner core is a solid carbon fiber structure, and the inner sleeve is made of metal. The inner sleeve is fitted outside the inner core, and the main body is formed and covers the outer side of the inner sleeve.