Stable racket structure
By setting molding holes on the racket handle and forming them in one piece with the core, combined with the design of the limit part, the existing racket materials are solved, and the problems of high cost, low production efficiency and easy handle removal are achieved, and higher structural strength and production efficiency are achieved.
Patent Information
- Application Number
- CN202420334377.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-02-22
AI Technical Summary
When making existing rackets, the material cost is high, the production efficiency is low, and the handle is easy to take off, which poses safety risks.
A molding hole is provided on the handle, and the core is cured and molded in the molding hole, and combined with the handle to form an integrated structure, which prevents the core from being released through the limiting part to ensure the structural strength of the handle.
It reduces material costs, improves production efficiency, ensures the stability of the handle, and avoids unnecessary safety hazards.
Smart Images
Figure CN222566750U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rackets, in particular to a stable racket structure. Background Art
[0002] Rackets (such as badminton and tennis rackets) are high-power sports equipment characterized by minimal material usage, high net pressure on the frame, and significant shaft deformation during impact. World-renowned brands, in developing high-performance badminton and tennis rackets, aspire to achieve breakthroughs in production technology and structural design to lead the market. For example, a badminton racket typically consists of a frame, a handle, and a shaft connecting the frame and handle. A badminton racket is typically no longer than 68 cm, with the handle and shaft no longer than 42 cm. The frame is no longer than 25 cm and the width is 20 cm. With the advancement of science and technology, rackets are evolving towards lighter weight, stiffer frames, more flexible shafts, and reduced air resistance.
[0003] Currently, various types of rackets use wooden handles to provide a more comfortable grip for the batter. Wooden handles offer a better feel and better shock absorption. In the prior art, these rackets are manufactured by first integrally molding the frame and shaft from a fiber composite material. The rear end of the shaft is then inserted into the front end of the handle and secured with glue. Because the shaft is only partially inserted into the handle, a wood with good structural strength must be selected to ensure the handle's structural strength. This results in high material costs. Furthermore, the handle is installed using a rear-attachment method, which reduces production efficiency. Furthermore, since the handle is only glued to the shaft, it can easily come off the shaft, posing a significant safety hazard when batting. Therefore, there is a need to improve current rackets. Utility Model Content
[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a stable racket structure that can effectively solve the problems of the prior art rackets, such as high material cost, low production efficiency, and easy dislodgment of the handle.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A stable racket structure includes a racket frame, a racket shaft, and a handle; the front end of the racket shaft is integrally connected to the racket frame; the handle is connected to the rear end of the racket shaft; the handle has a molding hole, and the rear end of the racket shaft has a core body, the core body is solidified and molded in the molding hole and combined with the handle to form an integral structure, the core body is integrally connected to a limiting portion for preventing the core body from escaping from the handle, and the limiting portion, the racket shaft, and the racket frame are all made of fiber composite materials.
[0007] As a preferred solution, the molded hole passes through the front and rear end surfaces of the handle.
[0008] As a preferred solution, the limiting portion is a rear sleeve, which abuts against the rear end surface of the handle.
[0009] As a preferred solution, the limiting portion is located inside the rear end of the forming hole.
[0010] As a preferred solution, the limiting portion and the formed hole are non-circular to prevent the handle from rotating easily.
[0011] As a preferred solution, the handle is made of wood, hard foam, plastic or fiber composite material.
[0012] As a preferred solution, the core body and the formed hole are non-circular to prevent the handle from rotating easily.
[0013] As a preferred solution, the fiber composite material is a carbon fiber composite material, which has better structural strength.
[0014] As a preferred solution, the outer diameter of the core body is smaller than the outer diameter of the front end of the middle tube.
[0015] As a preferred solution, a reinforcement ring is provided at least partially on the outer surface of the handle to strengthen the local structure of the handle.
[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:
[0017] By setting a forming hole on the handle, the core is solidified and formed in the forming hole, and the limiting part is integrally formed and fixedly connected with the rear end of the core. The limiting part, the racket shaft and the racket frame are all fiber composite materials. In this way, the core can ensure the structural strength of the handle. Any material of handle can be selected, which is conducive to reducing material costs. The handle and the core are combined in one molding, and no subsequent connection is required, which saves working procedures and greatly improves production efficiency. In addition, the limiting part can effectively prevent the handle from falling out, eliminating unnecessary safety hazards.
[0018] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a longitudinal partial cross-sectional schematic diagram of the first preferred embodiment of the present utility model;
[0020] Figure 2 It is a longitudinal partial cross-sectional schematic diagram of the second preferred embodiment of the present utility model;
[0021] Figure 3 It is a transverse cross-sectional schematic diagram of the tail end of the second preferred embodiment of the present utility model;
[0022] Figure 4 It is a schematic longitudinal partial cross-sectional view of a third preferred embodiment of the present utility model;
[0023] Figure 5 It is a cross-sectional view of the fourth preferred embodiment of the present utility model.
[0024] Description of the accompanying drawings:
[0025] 10. Frame 20. Shaft
[0026] 21, core 30, handle
[0027] 31. Forming hole 32. Half shell
[0028] 40. Limiting portion 50. Reinforcement ring. DETAILED DESCRIPTION
[0029] Please refer to Figure 1 As shown, it shows the specific structure of the first preferred embodiment of the present invention, including a racket frame 10, a racket shaft 20 and a handle 30.
[0030] The front end of the shaft 20 is integrally connected to the frame 10 , and the rear end of the shaft 20 has a core 21 . In this embodiment, the racket is a badminton racket, and the shaft 20 is a middle tube.
[0031] The handle 30 can be made of wood, rigid foam, plastic, or a fiber composite material, with wood being preferred as a preferred material due to its comfortable feel. The handle 30 is connected to the rear end of the shaft 20 and has a molded hole 31. The core 21 is solidified and molded within the molded hole 31, forming a single piece with the handle 30. A stopper 40 is integrally formed with the core 21 to prevent it from slipping out of the handle 30. The stopper 40, the shaft 20, and the frame 10 are all made of fiber composite materials, facilitating the integrated molding process. In this embodiment, the molded hole 31 extends through both the front and rear ends of the handle 30. The stopper 40 forms a rear sleeve that rests on the rear end of the handle 30, eliminating the need for a separate sleeve. The fiber composite material is a carbon fiber composite material, providing enhanced structural strength. Furthermore, the core 21 and the molded hole 31 are non-circular, preventing the handle 30 from rotating. In addition, the outer diameter of the core 21 is smaller than the front end outer diameter of the middle tube, so as to better position the handle 30 front and back. In addition, the handle 30 can be made of various types of wood such as cork, and the type of wood is not required to be high.
[0032] The production process of this embodiment is described in detail as follows:
[0033] First, the racket frame 10 and the racket shaft 20 are prefabricated using uncured fiber cloth, the already manufactured handle 30 is put on the core 21, and the limiting portion 40 is prefabricated using uncured fiber cloth. The limiting portion 40 is connected to the core 21, thus forming a semi-finished product. Next, the semi-finished product is placed in a mold and heated and cured, so that the prefabricated racket frame 10, the racket shaft 20 and the limiting portion 40 are cured together. During the heating process, the fiber cloth overflows with resin glue, and the resin glue adheres to the handle 30, thereby realizing an integrated molding connection, and there is no need for subsequent secondary assembly of the handle 30.
[0034] Please refer to Figure 2 and Figure 3 As shown, it shows the specific structure of the second preferred embodiment of the utility model. The specific structure of this embodiment is basically the same as that of the first preferred embodiment, except that:
[0035] In this embodiment, the limiting portion 40 is located inside the rear end of the forming hole 31, and the rear end surface of the limiting portion 40 is flush with the rear end surface of the handle 30. The racket has a structure without a back cover, and the back cover can be installed as needed. Moreover, the limiting portion 40 and the forming hole 31 are non-circular, such as a polygonal matching structure such as a triangle or a quadrilateral, so as to better prevent the handle 30 from rotating easily.
[0036] The manufacturing process of this embodiment is basically the same as that of the first preferred embodiment described above, and the manufacturing process of this embodiment will not be described in detail here.
[0037] Please refer to Figure 4 As shown, it shows the specific structure of the third preferred embodiment of the present utility model. The specific structure of this embodiment is basically the same as that of the first preferred embodiment, except that:
[0038] In this embodiment, a reinforcement ring 50 is at least partially provided on the outer surface of the handle 30 to strengthen the local structure of the handle 30, and the handle 30 is formed by splicing two half shells 32 together on the left and right. The reinforcement ring 50 splices and fixes the two half shells 32 together, and the reinforcement ring 50 is formed by solidifying carbon fiber composite material.
[0039] During production, first, the racket frame 10, racket shaft 20 and limit portion 40 are prefabricated using uncured fiber cloth, and the two half shells 32 of the already manufactured handle 30 are placed on the core 21. Then, the reinforcement ring 50 is prefabricated on the outside of the handle 30 using uncured fiber cloth, thus forming a semi-finished product. Then, the semi-finished product is placed in a mold and heated and cured, so that the prefabricated racket frame 10, racket shaft 20, limit portion 40 and reinforcement ring 50 are cured together, thereby achieving an integrated connection, and no subsequent secondary assembly of the handle is required.
[0040] Please refer to Figure 5As shown, it shows the specific structure of the fourth preferred embodiment of the present utility model. The specific structure of this embodiment is basically the same as that of the first preferred embodiment, except that:
[0041] In this embodiment, the racket is a tennis racket, and the racket shaft 20 is triangular in shape.
[0042] The manufacturing process of this embodiment is basically the same as that of the first preferred embodiment described above, and the manufacturing process of this embodiment will not be described in detail here.
[0043] The design focus of the present utility model is that a forming hole is provided on the handle, the core body is solidified and formed in the forming hole, and a limiting portion is integrally formed and fixedly connected with the rear end of the core body. The limiting portion, the racket shaft and the racket frame are all fiber composite materials. In this way, the core body can ensure the structural strength of the handle, and a handle of any material can be selected, which is conducive to reducing material costs. The handle and the core body are combined in one molding without the need for subsequent connection, saving steps and greatly improving production efficiency. In addition, the limiting portion can effectively prevent the handle from falling out, eliminating unnecessary safety hazards.
[0044] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A stable racket structure, comprising a racket frame, a racket shaft and a handle; the front end of the racket shaft is integrally connected to the racket frame; the handle is connected to the rear end of the racket shaft; characterized in that: The handle is provided with a forming hole, and the rear end of the racket shaft is provided with a core body, which is solidified and formed in the forming hole and combined with the handle to form an integral structure. The core body is integrally formed and connected with a limiting portion for preventing the core body from escaping from the handle, and the limiting portion, the racket shaft and the racket frame are all made of fiber composite materials; the core body and the forming hole are non-circularly matched, and a reinforcement ring is at least partially provided on the outer surface of the handle.
2. The stable racket structure according to claim 1, characterized in that: The forming hole passes through the front and rear end surfaces of the handle.
3. The stable racket structure according to claim 2, characterized in that: The limiting portion is a rear sleeve, which abuts against the rear end surface of the handle.
4. The stable racket structure according to claim 2, characterized in that: The limiting portion is located inside the rear end of the forming hole.
5. The stable racket structure according to claim 4, characterized in that: The limiting portion and the forming hole are matched in a non-circular manner.
6. The stable racket structure according to claim 1, characterized in that: The handle is made of wood, hard foam, plastic or fiber composite material.
7. The stable racket structure according to claim 1, characterized in that: The fiber composite material is a carbon fiber composite material.
8. The stable racket structure according to claim 4, characterized in that: The outer diameter of the core body is smaller than the outer diameter of the front end of the middle tube.