A golf club, golf club assembly

Abstract

The application discloses a golf club and a golf club assembly, which comprises a shaft body, one end of which comprises a cylindrical section extending axially and having a constant outer diameter; and a handle provided at one end of the shaft body away from the cylindrical section, the handle being a columnar structure extending axially and having a constant outer diameter, and the handle being provided with a circular inner hole, the inner diameter of the circular inner hole being matched with the inner diameter of the cylindrical section. Through the constant-diameter shaft body and handle design, the number of product specifications is reduced, production and inventory management are simplified, and cost is reduced; through the constant-handle-outer-diameter design, a stable holding thickness feeling is provided, the holding comfort of players is improved, and the swing level of players is facilitated; through the matched design of the circular inner hole and the cylindrical section of the shaft body, the stability and reliability of connection are ensured, and the durability of the product is improved.

Description

Technical Field

[0001] This application relates to the field of sports equipment technology, and in particular to a golf club and a golf club assembly. Background Technology

[0002] As a sport with a long history, golf clubs have been continuously improved in design to enhance players' playing experience and performance. However, existing golf club designs have some shortcomings in the connection between the grip and the shaft, affecting the ease of use and comfort of the product.

[0003] The main drawbacks are as follows: Existing golf club shafts typically have a tapered end, and the corresponding grip bore also uses a tapered structure. This design necessitates grips with different tapered shaft diameters, resulting in a large number of products with varying specifications. This not only increases production and management complexity but also raises inventory costs, causing inconvenience for both manufacturers and retailers. Furthermore, the relatively small diameter of the grip's lower end affects the grip feel for some users, especially when a thicker grip is needed to accommodate different players' needs or when a consistent grip thickness is desired. The existing tapered structure cannot meet these requirements, leading to decreased grip comfort and consequently affecting the player's swing and shot performance. These shortcomings not only inconvenience the production and sales of golf clubs but also negatively impact the player's experience.

[0004] Therefore, the above-mentioned problems urgently need to be addressed. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a golf club and a golf club assembly, comprising: The shaft includes, at one end, an axially extending cylindrical section with a constant outer diameter; A grip is provided at one end of the shaft away from the cylindrical section. The grip is an axially extending columnar structure with a constant outer diameter. The grip has a circular inner hole, the inner diameter of which is adapted to the inner diameter of the cylindrical section.

[0006] Preferably, the inner diameter of the circular inner hole is the same as the inner diameter of the cylindrical segment.

[0007] Preferably, the shaft includes a connecting section and a cylindrical section, the grip and the cylindrical section are respectively disposed at both ends of the connecting section, and the connecting section and the cylindrical section are integrally formed.

[0008] Preferably, the outer diameter of the grip is larger than the inner diameter of the cylindrical section, and the connecting section is a frustum structure that extends axially and has a linearly changing inner diameter.

[0009] Preferably, the length of the cylindrical segment is in the range of 0.2 to 0.5 relative to the length of the golf club.

[0010] Preferably, the outer wall surface of the golf club is covered with a reinforcing structure to enhance the strength of the golf club.

[0011] Preferably, the reinforcing structure is a reinforcing fiber layer, a metal sleeve, or a coating.

[0012] Preferably, the grip has an internal cavity, and the cavity contains a counterweight, a shock absorber, or a sensor module.

[0013] Preferably, the sensor module is an attitude sensor or a pressure sensor.

[0014] A golf club assembly includes a clubhead and a golf club as described in any of the preceding claims, the clubhead being disposed at one end of the shaft remote from the grip.

[0015] Based on the above technical solution, the golf club and golf club assembly described in this application have the following beneficial effects: By using a shaft and grip design with a constant diameter, the number of product specifications is reduced, production and inventory management are simplified, and costs are lowered. The constant grip outer diameter design provides a stable grip feel, improving player comfort and facilitating better swing performance. The matching design between the circular inner bore and the cylindrical section of the shaft ensures a stable and reliable connection, enhancing product durability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1 This is a perspective view of the golf club provided in the embodiments of this application.

[0018] Figure 2 This is a front view of the golf club provided in the embodiments of this application.

[0019] Figure 3 This is an end view of a golf club provided in an embodiment of this application.

[0020] Figure 4 This is a front view of the golf club provided in this application embodiment without the reinforcement structure.

[0021] Figure 5 This is a cross-sectional view of a golf club provided in an embodiment of this application.

[0022] The reference numerals in the attached drawings are as follows: 100, golf club; 200, shaft; 21, connecting section; 22, cylindrical section; 300, grip; 31, cavity; 400, reinforcement structure. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0025] like Figures 1-5 As shown in the figure, this application discloses a golf club 100, which includes: The shaft 200 includes a cylindrical segment 22 extending axially and having a constant outer diameter at one end; A grip 300 is disposed at one end of the shaft 200 away from the cylindrical section 22. The grip 300 is a columnar structure that extends axially and has a constant outer diameter. The grip 300 has a circular inner hole, the inner diameter of which is adapted to the inner diameter of the cylindrical section 22.

[0026] Understandably, designing the end of the shaft 200 as an axially extending cylindrical segment 22 with a constant outer diameter avoids the specification diversity and management inconvenience caused by the tapered design in the prior art. This design allows different shafts 200 to share the same specification of grip 300, thereby simplifying the production process, reducing inventory costs, and improving management efficiency.

[0027] Secondly, the grip 300 adopts an axially extended cylindrical structure with a constant outer diameter, which matches the cylindrical section 22 of the shaft 200 to ensure a stable connection. This design keeps the lower diameter of the grip 300 consistent, avoiding the problem of poor grip due to the smaller lower diameter in existing technologies. The constant outer diameter design also makes it easy to thicken the grip 300 or keep it the same thickness, improving the player's grip comfort.

[0028] Furthermore, the grip 300 has a circular inner hole whose inner diameter matches the outer diameter of the cylindrical section 22 of the shaft 200, ensuring a tight and secure connection. This design further enhances the connection strength between the grip 300 and the shaft 200, improving the overall stability and durability of the product.

[0029] In summary, the constant diameter shaft 200 and grip 300 design reduces the number of product specifications, simplifies production and inventory management, and lowers costs. The constant outer diameter of the grip 300 provides a stable grip feel, improving player comfort and facilitating better swing performance. The matching design between the circular inner bore and the cylindrical section 22 of the shaft 200 ensures a stable and reliable connection, enhancing product durability.

[0030] In a preferred embodiment, the inner diameter of the circular inner hole is the same as the inner diameter of the cylindrical segment 22.

[0031] Understandably, the design of having the same inner diameter of the circular inner hole as the cylindrical section 22 of the shaft 200 ensures a perfect fit between the grip 300 and the shaft 200 without any gaps. This tight fit effectively prevents the grip 300 from wobbling or rotating during the swing, thereby improving the stability of the connection between the grip 300 and the shaft 200. A stable connection can avoid the loss of hitting power caused by a loose connection, making the player's swing smoother and the hitting effect more stable.

[0032] Understandably, a perfectly aligned connection minimizes energy loss, allowing the power generated during the swing to be transferred to the club more effectively, thus improving shot efficiency.

[0033] like Figures 4-5As shown, the shaft 200 includes a connecting section 21 and a cylindrical section 22. The grip 300 and the cylindrical section 22 are respectively disposed at both ends of the connecting section 21. The connecting section 21 and the cylindrical section 22 are integrally formed structures.

[0034] Understandably, the one-piece molded structure design eliminates the physical interface, adhesive, or mechanical connection points between the connecting section 21 and the cylindrical section 22, fundamentally eliminating potential weak points caused by the connection. This significantly enhances the structural strength and torsional and bending resistance of the shaft end region 200. Furthermore, during the swing, power is transferred from the shaft 200 body to the grip 300. The one-piece molded structure ensures the continuity and integrity of power transmission, avoiding energy loss due to stress concentration or minor displacement at the connection point, thereby improving the stability of the shot and the efficiency of power transmission.

[0035] Understandably, unlike split structures which may experience glue aging, loosening, or wear, the one-piece molded structure provides a permanent, inseparable connection, ensuring that the connection between the grip 300 and the shaft 200 remains highly stable and reliable over long-term use and under various environmental conditions (such as changes in temperature and humidity).

[0036] In a preferred embodiment, the outer diameter of the grip 300 is larger than the inner diameter of the cylindrical segment 22, and the connecting segment 21 is a frustum structure that extends axially and has a linearly changing inner diameter.

[0037] Understandably, the main body of the existing shaft 200 is usually tapered, while the end becomes cylindrical to accommodate the grip 300. If the shaft 200 abruptly transitions from the main body to the cylindrical section 22, it would create a noticeable step. However, by designing the connecting section 21 as a frustum structure with a linearly changing inner diameter, it acts like a smooth "bridge," allowing the shaft 200 to smoothly transition from the thinner main body to the thicker cylindrical section 22. This results in a smooth and seamless profile for the entire shaft 200.

[0038] Understandably, under the enormous impact of a swing, any abrupt change in cross-section will become a stress concentration point, the weakest point in the structure. The frustum connecting section 21, through a gradual transition, smoothly transfers stress from the main body of the shaft 200 to the end cylindrical section 22, greatly alleviating the stress concentration problem, significantly improving the structural strength and fatigue resistance of the end of the shaft 200, and reducing the risk of fracture.

[0039] In a preferred embodiment, the length of the cylindrical segment 22 is in the range of 0.2-0.5 relative to the length of the golf club 100.

[0040] Understandably, the cylindrical section 22 is the main contact area between the grip 300 and the shaft 200. If the proportion is too short, the contact area will be insufficient, causing the grip 300 to easily loosen, rotate, or slip when subjected to huge torsional and impact forces, seriously affecting the stability and safety of the shot. The aforementioned length ratio range ensures sufficient axial contact length to provide strong resistance to torsion and shear.

[0041] In a preferred embodiment, the outer wall surface of the golf club 100 is covered with a reinforcing structure 400 to enhance the strength of the golf club 100.

[0042] Understandably, the end of the shaft 200 is the mounting area for the grip 300, which will be subjected to enormous torsional moment (torque) and bending stress during the swing. By covering this area with a reinforcing structure 400, the cross-sectional moment of inertia and material strength can be significantly increased, thereby greatly improving its torsional and bending resistance.

[0043] Understandably, a golf swing involves thousands of repetitive impacts, and the 200mm end of the shaft, as a stress concentration area, is most susceptible to fatigue damage. Therefore, designing a reinforced 400mm structure can effectively distribute and suppress stress concentration, slowing the generation and propagation of microcracks, thereby significantly extending the lifespan of the club.

[0044] Preferably, the reinforcing structure 400 is a reinforcing fiber layer, a metal sleeve, or a coating.

[0045] Understandably, the benefits of the reinforced structure 400 with its enhanced fiber layer are as follows: First, fiber materials have extremely high specific strength and specific modulus, representing the best combination of high strength and lightweight. While providing excellent torsional and bending strength, the added weight is very limited. Therefore, the rigidity and durability of the shaft end can be significantly improved without sacrificing swing speed. Second, fiber composite materials have fatigue resistance properties, which can effectively resist the cyclic stress brought about by the swing, preventing the material from developing microcracks and fractures due to fatigue, thereby significantly extending the service life of the club.

[0046] Understandably, the advantages of using a metal sleeve for the reinforcement structure 400 are as follows: First, the elastic modulus of metal is generally higher than that of composite materials, so the metal sleeve can provide very high rigidity, which can effectively resist the bending and deformation of the shaft 200 end. The metal sleeve can provide an extremely robust and stable internal support for the grip 300, ensuring the long-term stability of the grip 300's shape after installation. Second, the high surface hardness of metal makes it wear-resistant and impact-resistant, effectively preventing accidental bumps and damage to the shaft 200 end during installation, use, or transportation. Furthermore, the metal sleeve allows for fine-tuning of the club's swing weight and balance point by selecting sleeves of different materials or wall thicknesses to meet the needs of specific players.

[0047] Understandably, the benefits of the coating on the reinforcement structure 400 are as follows: the most direct effect of the coating is to provide a protective layer to prevent the surface of the shaft 200 from being scratched, corroded, or eroded by chemicals, which is very important for protecting the surface integrity of the shaft 200; secondly, the high-strength resin coating can improve the overall rigidity and compressive strength of the end of the shaft 200 to a certain extent, and it can tightly wrap the fiber layer of the shaft 200 itself together to prevent delamination or peeling under stress.

[0048] In this embodiment, the coating can be formed on the end of the shaft 200 by spraying, impregnation or wrapping with high-performance resin, ceramic coating, polymer coating or the like to form a protective reinforcing film.

[0049] In a preferred embodiment, the grip 300 has a cavity 31 inside, and the cavity 31 has a counterweight, a shock absorber, or a sensor module inside.

[0050] Understandably, the swing weight and balance point of the golf club 100 are key parameters affecting a player's feel, swing rhythm, and shot consistency. By placing weights of different weights and in different positions within the cavity 31 inside the grip 300, the center of gravity and swing weight of the entire club can be precisely adjusted. This allows players to "fine-tune" the club according to their own strength, swing habits, and feel preferences, finding the most suitable configuration for themselves, thereby improving the stability and consistency of their shots.

[0051] Understandably, at the moment of impact, a large amount of sharp, high-frequency vibration is generated and transmitted to the player's arm through the shaft 200. By installing shock absorbers made of materials such as silicone, gel, and elastomers within the grip 300 cavity 31, these undesirable vibrations can be effectively absorbed and cushioned. Furthermore, effective shock absorption significantly improves the comfort of the shot, making the feel more "pure" and "solid." More importantly, long-term absorption of harmful vibrations can reduce the impact on the player's wrists, arms, and elbows, lowering the risk of overuse injuries such as golf elbow and protecting the player's health.

[0052] Understandably, integrating a sensor module into the grip 300 cavity 31 can upgrade an ordinary golf club 100 into a smart data acquisition device, enabling it to capture key data during the player's swing in real time. This includes data such as clubhead speed, swing path and plane, impact angle, and grip 300 pressure.

[0053] Furthermore, the sensor module is an attitude sensor or a pressure sensor.

[0054] Understandably, setting the sensor as an attitude sensor can record dynamic information throughout the entire process from backswing, downswing, impact to follow-through at an extremely high frequency, transforming the abstract "swing action" into a visual and quantifiable data chart.

[0055] Understandably, a pressure sensor is used to accurately measure the total force applied by the player's grip. An overly tight grip can cause muscle tension in the arms, restricting the natural release of the wrists and affecting swing smoothness and distance; a loose grip may lead to loss of control at impact. Therefore, a pressure sensor helps players find and maintain the optimal grip force. Furthermore, by placing sensors at different positions on the grip, the evenness of the pressure can be analyzed. Uneven pressure distribution can lead to clubface instability or deviation in shot direction. The pressure sensor can also detect pressure changes throughout the swing.

[0056] This application also discloses a golf club 100 assembly, which includes a club head and the golf club 100 described above, wherein the club head is disposed at one end of the shaft 200 away from the grip 300.

[0057] The foregoing description has fully disclosed the specific embodiments of this application. It should be noted that any modifications made by those skilled in the art to the specific embodiments of this application do not depart from the scope of the claims. Accordingly, the scope of the claims of this application is not limited to the foregoing specific embodiments.

Claims

1. A golf club, characterized in that, It includes: The shaft, one end of which includes an axially extending cylindrical section with a constant outer diameter; A grip is provided at one end of the shaft away from the cylindrical section. The grip is an axially extending columnar structure with a constant outer diameter. The grip has a circular inner hole, the inner diameter of which is adapted to the inner diameter of the cylindrical section.

2. The golf club according to claim 1, characterized in that, The inner diameter of the circular inner hole is the same as the inner diameter of the cylindrical segment.

3. The golf club according to claim 1, characterized in that, The shaft includes a connecting section and a cylindrical section. The grip and the cylindrical section are respectively disposed at both ends of the connecting section. The connecting section and the cylindrical section are integrally formed.

4. The golf club according to claim 3, characterized in that, The outer diameter of the grip is larger than the inner diameter of the cylindrical section, and the connecting section is a frustum structure that extends axially and has a linearly changing inner diameter.

5. The golf club according to claim 1, characterized in that, The length of the cylindrical segment is in the range of 0.2 to 0.5 relative to the length of the golf club.

6. The golf club according to claim 1, characterized in that, The outer wall of the golf club is covered with a reinforcing structure to enhance the strength of the golf club.

7. The golf club according to claim 6, characterized in that, The reinforcing structure is a reinforcing fiber layer, a metal sleeve, or a coating.

8. The golf club according to claim 1, characterized in that, The grip has an internal cavity, and the cavity contains a counterweight, shock absorber, or sensor module.

9. The golf club according to claim 8, characterized in that, The sensor module is an attitude sensor or a pressure sensor.

10. A golf club assembly, characterized in that, It includes a ball head and a golf club as described in any one of claims 1-9, wherein the ball head is disposed at the end of the shaft away from the grip.

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