Park Golf Club

Abstract

To provide a park golf club that is lightweight, durable, stable, and relatively easy to use, and that can promote the spread of park golf, by selecting lightweight, high-strength carbon fiber as the shaft material and adopting the mechanical joining method of the present invention for the head assembly. [Solution] The head assembly includes a shaft (600) made of carbon fiber material, a head body (21), a positioning rod (300), and a sleeve (400), the inside of the head body having an attachment cavity (211), the sleeve being installed in the attachment cavity, the side wall of the attachment cavity including a striking plate (24), a positioning hole and an opening at both ends of the striking plate in the head body, the positioning rod being insertable into the attachment cavity through the positioning hole and forming a preset angle other than zero with respect to the striking plate, one end of the sleeve being connected to the positioning rod and the other end of the sleeve being connected to the opening, and is used to connect to the shaft.

Description

[Technical Field]

[0001] The present invention relates to the technical field of sports equipment construction, and in particular to park golf clubs. [Background technology]

[0002] Park golf clubs are primarily used by elderly people in their 70s and 80s. However, conventional park golf clubs are manufactured using wood materials and glued together. The high density of wood itself increases the weight of the club structure, making the entire club feel quite heavy. This increases the physical fatigue and difficulty of swinging for elderly users. Furthermore, the wood structure is prone to absorbing moisture and deforming or cracking in humid environments, which causes considerable inconvenience when using and transporting the club. This makes it difficult to meet the basic requirements of modern recreational sports, such as lightness, durability, convenience, and stability. This limits the further spread of park golf. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE INVENTION In view of the above problems of the prior art, an object of the present invention is to provide a club that is light, durable, convenient, and stable. [Means for solving the problem]

[0004] To solve the above problems, the present invention provides a park golf club comprising a shaft made of carbon fiber material, a head assembly including a head body, a positioning rod, and a sleeve, the head body having a mounting cavity therein, the sleeve being installed within the mounting cavity, the side wall of the mounting cavity including a striking plate, the head body having a positioning hole and an opening at each end of the striking plate, the positioning rod being insertable into the mounting cavity through the positioning hole and forming a predetermined non-zero angle with respect to the striking plate, one end of the sleeve being connected to the positioning rod and the other end of the sleeve being connected to the opening, and used for connecting to the shaft.

[0005] Preferably, a cross section of the shaft along the extension direction of the shaft is polygonal, The sleeve is provided with a fitting groove that matches the cross-sectional shape of the shaft, and one end of the shaft is fitted into the fitting groove.

[0006] Preferably, a grip is fitted onto the end of the club remote from the head assembly, the grip having an internal cavity structure that matches the cross-sectional shape of the shaft.

[0007] Preferably, a fitting sleeve is further fitted onto the outer periphery of the shaft, and an engaging portion for abutting against the fitting sleeve is provided on the inner wall of the fitting groove.

[0008] Preferably, the head body comprises an upper cover, a base and the striking plate, the positioning hole is located in the base, the opening is located in the upper cover, the striking plate is located between the upper cover and the base, and the mounting cavity is formed by being surrounded by the upper cover, the base and the striking plate.

[0009] Preferably, an extension is provided at each connecting portion of the upper cover and the base at the end remote from the striking plate, and the two extensions are in close contact with each other to form a rib structure protruding from the surface of the head body.

[0010] Preferably, the thickness of the center of the striking plate is greater than the thickness of the edge of the striking plate; Alternatively, the striking plate has a graduated thickness, being thicker in the center and thinner at the edges.

[0011] Preferably, a striking surface for striking a ball is formed on the outer wall of the striking plate, the striking surface having a flat, planar structure without curvature, and the striking surface is perpendicular to the plane on which the bottom of the head body is located.

[0012] Preferably, the head body is of a one-piece molded structure.

[0013] Preferably, the head assembly further includes a shim, the shim being sandwiched between the positioning hole and the positioning rod. [Effects of the Invention]

[0014] Based on the above technical solution, the park golf club of the present invention has the following beneficial effects:

[0015] Carbon fiber shafts have a lower density and higher strength than wood shafts, solving the problem of heavy clubs caused by the high density of wood in conventional golf clubs. This significantly reduces the overall weight of the club. For elderly golfers, this significantly reduces the physical strength required for swinging and simplifies operation, improving user convenience. Furthermore, carbon fiber shafts have superior corrosion and moisture resistance, preventing deformation and cracking due to moisture absorption, as wood does. This meets the durability requirements of modern recreational sports, reduces inconvenience during daily use and transport of clubs, and improves product stability and lifespan. Furthermore, the mechanical connection between the positioning rod and sleeve strengthens the connection strength of the head assembly, making it less susceptible to loosening or malfunction due to external forces or environmental changes (e.g., humidity). This ensures stability and reliability during use of the club. Furthermore, the positioning rod allows the sleeve to be connected after the angle has been pre-adjusted, making the assembly process more accurate and convenient, reducing problems caused by manufacturing defects that users may encounter during use and transport. In addition, the positioning rod is designed to form a preset angle relative to the striking plate, optimizing the mechanical transmission when hitting the ball, improving the stability of the club at the moment of impact, suppressing wobble, and improving hitting accuracy and stability.

[0016] As described above, the present invention provides a golf club that is lightweight, durable, stable, and relatively easy to use by selecting lightweight, high-strength carbon fiber as the shaft material and adopting the above-mentioned mechanical joining method for the head assembly, thereby promoting the popularity of park golf. [Brief explanation of the drawings]

[0017] In order to more clearly explain the technical solution of the present invention, the following briefly describes the drawings necessary for describing the embodiments or prior art. Obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without paying creative labor. [Figure 1]1 is an exploded view of a club according to an embodiment of the present invention. [Figure 2] 1 is a schematic diagram of the overall structure of a club according to an embodiment of the present invention; [Figure 3] 1 is a schematic diagram of the internal structure of a club according to an embodiment of the present invention; [Figure 4] FIG. 4 is a partial enlarged view of part A in FIG. 3. [Figure 5] 1 is a schematic diagram of the internal structure of a head assembly according to an embodiment of the present invention, seen from a first perspective; [Figure 6] 3 is a schematic diagram of the internal structure of the head assembly according to the embodiment of the present invention, seen from a second perspective; [Figure 7] 2 is a schematic diagram of the internal structure of a head assembly according to an embodiment of the present invention; [Figure 8] 1 is a cross-sectional view of a sleeve according to an embodiment of the present invention. [Figure 9] 1 is a schematic diagram of the grip structure according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0018] The technical solutions in the embodiments of the present invention will be described below clearly and completely with reference to the drawings of the embodiments of the present invention, but it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments that can be obtained by those skilled in the art without paying creative labor fall within the scope of protection of the present invention.

[0019] As used herein, the term "one embodiment" or "embodiment" refers to a particular feature, structure, or characteristic included in at least one embodiment of the present invention. In describing the present invention, it should be understood that orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "top," "bottom," etc., are based on the drawings and are intended to facilitate and simplify the description of the present invention. They are not intended to imply or suggest that such devices or elements necessarily have a particular orientation, or be configured and operated in a particular orientation, and therefore should not be understood as limitations on the present invention. Furthermore, the terms "first" and "second" are merely descriptive and should not be understood as expressing or implying the relative importance or the number of such technical features. Thus, a feature qualified as "first" or "second" may expressly or imply the inclusion of one or more of the feature. Furthermore, the terms "first," "second," etc., are used to distinguish between similar objects and do not necessarily describe a particular order or sequential relationship. It should be understood that the numbers used herein are interchangeable where appropriate, such that the embodiments of the invention described herein may be performed in sequences other than those illustrated or described herein.

[0020] As shown in FIGS. 1 to 9 , an embodiment of the present invention discloses a park golf club 100. This park golf club 100 is adapted for park golf, and of course, its use scene is a non-standard park golf course. Park golf, as referred to here, is a recreational sport that originated in Japan and is widely popular in Korea, and its rules and equipment differ from traditional golf. Furthermore, because park golf is primarily played by elderly people, the rules for using the park golf club 100 are relatively simple, placing more emphasis on recreation, entertainment, and social interaction, and the requirements for technical details are not as strict as those of professional golf. Therefore, the park golf club 100 is characterized by at least lightness, durability, convenience, and stability, thereby providing a high level of user comfort.

[0021] Specifically, the park golf club 100 is a shaft 600 made of a carbon fiber material; a head assembly (200) comprising a head body (21), a positioning rod (300), and a sleeve (400), wherein an attachment cavity (211) is defined within the head body (21), the sleeve (400) is installed within the attachment cavity (211), a side wall of the attachment cavity (211) includes a striking plate (24), a positioning hole (231) and an opening (221) are defined at both ends of the striking plate (24) of the head body (21), the positioning rod (300) is insertable into the attachment cavity (211) through the positioning hole (231) and forms a non-zero preset angle with respect to the striking plate (24), one end of the sleeve (400) is connected to the positioning rod (300), and the other end of the sleeve (400) is connected to the opening (221) and is used for connection to the shaft (600).

[0022] As will be appreciated, the interior of the head body 21 is hollow, forming a mounting cavity 211 for accommodating the positioning rod 300 and the sleeve 400. The sidewall of the mounting cavity 211 contains the striking plate 24 for hitting a ball. The striking plate 24 is provided at each end with a positioning hole 231 and an opening 221. The positioning hole 231 is used to insert the positioning rod 300 so as to determine the angle of the striking plate 24 relative to the shaft 600 when the head body 21 hits a ball, and the opening 211 is used to connect to the shaft 600.

[0023] The positioning rod 300 is inserted into the mounting cavity 211 through the positioning hole 231, and the hitting angle of the head body 21 is determined by adjusting the preset angle that the positioning rod 300 forms with respect to the striking plate 24.

[0024] The sleeve 400 is fixed to the positioning rod 300 after the positioning rod 300 forms a predetermined angle with respect to the striking plate 24. This not only ensures the stability of the angle of the head body 21, but also makes it easy to fix the sleeve 400 to the head body 21.

[0025] In the embodiment of the present invention, one end of the sleeve 400 is fitted onto the positioning rod 300 and positioned, and then the connecting end 42 thereof is connected to the opening 221 by welding.

[0026] In this embodiment of the present invention, the positioning rod 300 is a fixing screw, and the sleeve 400 is threadedly engaged with the fixing screw to fix the position of the sleeve 400. This not only facilitates the connection between the positioning rod 300 and the sleeve 400, but also makes it easy to adjust the angle of the positioning rod 300 relative to the striking plate 24.

[0027] Naturally, the outer wall of the striking plate 24 is formed with a striking surface 241 for striking the ball.

[0028] Therefore, the shaft 600 made of carbon fiber material has a lower density and higher strength than wood, solving the problem of the park golf club 100 being heavy due to the high density of wood in the prior art, and significantly reducing the overall weight of the park golf club 100. For elderly users, this significantly reduces the physical strength required for swinging and eases the difficulty of operation, improving convenience of use. Furthermore, carbon fiber material has superior corrosion resistance and moisture resistance, and is less likely to absorb moisture and deform or crack like wood. This satisfies the durability required for modern recreational sports, reduces inconvenience during daily use and transportation of the park golf club 100, and improves the stability and lifespan of the product. In addition, the mechanical connection between the positioning rod 300 and the sleeve 400 strengthens the connection strength of the head assembly 200, making it less likely to loosen or malfunction due to external forces or environmental changes (e.g., moisture), ensuring the stability and reliability of the park golf club 100 during use. Furthermore, the positioning rod 300 allows the sleeve 400 to be connected after the angle has been pre-adjusted, making the assembly process more accurate and convenient and reducing problems that may arise from manufacturing defects during use or transport. Furthermore, the design in which the positioning rod 300 forms a pre-set angle with the striking plate 24 optimizes mechanical transmission during impact, improving the stability of the park golf club 100 at the moment of impact with the ball, suppressing wobble, and improving hitting accuracy and stability.

[0029] As described above, the present invention uses lightweight, high-strength carbon fiber as the material for the shaft 600 and adopts the above-mentioned mechanical joining method for the head assembly 200 to provide a park golf club 100 that is lightweight, durable, stable, and relatively easy to use, thereby promoting the popularity of park golf.

[0030] In a preferred embodiment, the cross section of the shaft 600 along the extension direction Y of the shaft 600 is polygonal, The sleeve 400 is provided with a fitting groove 43 that fits the cross-sectional shape of the shaft 600 , and one end of the shaft 600 is fitted into the fitting groove 43 .

[0031] Naturally, the shaft 600 has a polygonal cross section, and fits into the polygonal cavity of the connecting portion to prevent the head main body 21 from falling off.

[0032] In an embodiment of the present invention, the cross section of the shaft 600 is hexagonal, which increases the contact area and thereby increases the frictional force between the shaft 600 and the head body 21, thereby improving the stability of the connection between the shaft 600 and the head body 21.

[0033] In the embodiment of the present invention, the shaft 600 is made of carbon fiber material, which has the characteristics of being lightweight and strong.

[0034] Therefore, by designing the shaft 600 to have a polygonal cross-sectional shape and providing a matching groove 43 in the sleeve 400, one end of the shaft 600 can be tightly fitted into the groove 43 of the sleeve 400. The polygonal structure design prevents the shaft 600 from freely rotating within the sleeve 400, effectively preventing the head body 21 from rotating or loosening relative to the shaft 600. This ensures a stable and consistent connection between the head body 21 and the shaft 600, maintaining a constant angle of the head body 21 when hitting a ball and improving the stability and predictability of the shot. In addition, the polygonal fitting structure is a mechanical locking mechanism that provides a larger contact area and better shear and twist resistance than simple screw connections or adhesives, improving the overall strength and reliability of the connection between the head body 21 and the shaft 600 and better able to withstand the large impact forces and torque generated when hitting a ball, reducing the risk of damage or malfunction of the connection.

[0035] As shown in FIG. 9, a grip 700 is fitted onto the end of the park golf club 100 away from the head assembly 200, and the grip 700 has an internal cavity structure 71 that fits the cross-sectional shape of the shaft 600.

[0036] Naturally, the shaft 600 is polygonal, and the internal cavity of the grip 700 is formed in a corresponding polygonal shape, so that when the grip 700 is fitted onto the shaft 600, a tight "fitting" or "interlocking" structure is formed between the two, which effectively prevents the grip 700 from rotating or loosening relative to the shaft 600 during use and improves the stability of the shot. Furthermore, compared to simple fitting or bonding, this polygonal fitting connection method provides a larger contact area and stronger mechanical locking force, making the connection between the grip 700 and the shaft 600 stronger and more reliable, able to withstand the torsional forces and impact forces generated during a swing, and less likely to come off or be damaged.

[0037] As shown in Figures 1, 4 and 8, a mating sleeve 500 is further fitted onto the outer periphery of the shaft 600, and an engagement portion 44 is provided on the inner wall of the mating groove 43 for abutting against the mating sleeve 500.

[0038] In an embodiment of the present invention, the engagement portion 44 is an engagement step, i.e., the inner diameter of the end of the engagement groove 43 close to the shaft 600 is larger than the inner diameter of the end of the engagement groove 43 away from the shaft 600, thereby forming an engagement step in the inner diameter changing portion, and in this way, when the engagement sleeve 500 is inserted into the engagement groove 43, it can abut against the engagement step, thereby achieving a strong connection between the shaft 600 and the head body 21.

[0039] Naturally, the aforementioned polygonal mating groove 43 already prevents the shaft 600 from rotating within the sleeve 400 through form-fitting, and the design of the mating groove 43 and mating sleeve 500 here further strengthens the connection between the head body 21 and the shaft 600.

[0040] When the engaging portion 44 on the inner wall of the sleeve 400 abuts against the mating sleeve 500, a frictional force or mechanical interference force is generated that prevents relative rotation between the two. That is, in addition to the locking effect due to shape, an axial or radial "snap fit" or "snap lock" effect is added, making the connection between the shaft 600, mating sleeve 500, and sleeve 400 stronger and further improving the anti-rotation and anti-loosening performance, especially when subjected to large torque or impact force.

[0041] This double locking mechanism significantly reduces the possibility of the connection loosening due to vibrations, impacts, or long-term use during use, improving the reliability of the structure of the entire park golf club 100, ensuring stability of the connection between the head body 21 and the shaft 600 even under long-term, high-intensity use, and improving safety during use.

[0042] As shown in Figures 4 to 7, the head body 21 includes an upper cover 22, a base 23, and the striking plate 24, the positioning hole 231 is located in the base 23, the opening 221 is located in the upper cover 22, the striking plate 24 is located between the upper cover 22 and the base 23, and the mounting cavity 211 is formed by being surrounded by the upper cover 22, the base 23, and the striking plate 24.

[0043] Of course, the striking plate 24 is used for direct contact and energy transfer with the ball, the base 23 connects the positioning rod 300 and the sleeve 400, and the top cover 22 is connected to the sleeve 400 and has an opening 221 formed therein.

[0044] Therefore, the head body 21 can be disassembled into a plurality of independent parts, which can be individually processed and manufactured, and the three parts are combined to form the complete head body 21 and the mounting cavity 211 during assembly.

[0045] In a preferred embodiment, the head body 21 is of a one-piece molded structure.

[0046] In an embodiment of the present invention, the head is a welded composite structure made of titanium alloy.

[0047] Naturally, the top cover 22, base 23, and striking plate 24 of the head body 21 are directly manufactured as a single, inseparable whole through a single processing process, meaning that the head body 21 has no seams or joints, and the material is continuous at the connection areas. This eliminates potential weak points (such as welds, screw holes, and adhesive joints), eliminating the risk of the head body 21 breaking, loosening, or deforming at the joints when subjected to the enormous impact force and torque of hitting a ball, providing far greater strength and reliability than a split structure. This design also completely eliminates the possibility of rotation or loosening due to vibration and impact between parts, ensuring consistent and reliable ball hitting.

[0048] As shown in FIG. 4, an extension 25 is provided at each joint of the upper cover 22 and the base 23 at the end away from the striking plate 24, and the two extensions 25 are in close contact with each other to form a rib structure 26 protruding from the surface of the head body 21.

[0049] Naturally, the rib structure 26 forms an additional contact surface and mechanical lock at the joint, which not only increases the frictional force of the connection through tight contact, but also further prevents relative movement between the top cover 22 and the base 23 through a form-fit (similar to a snap fit). As a result, the joint between the top cover 22 and the base 23 is made stronger, improving the structural strength and stability of the entire head body 21 and effectively preventing cracks and deformation at the joint, especially when subjected to impact force when hitting a ball.

[0050] In a preferred embodiment, the thickness of the center of the striking plate 24 is greater than the thickness of the edges of the striking plate 24 .

[0051] Naturally, a thicker center of the striking plate 24 means greater rigidity in that center. When a ball is struck in the central region of the striking surface 241, the thicker structure transfers energy more effectively and reduces deformation and vibration of the head body 21, resulting in a firmer, more stable feel on impact. Furthermore, even if the impact point is slightly off-center, the thicker central region provides better support, reducing energy loss and directional deviation due to off-center strikes and improving the tolerance for error in the impact.

[0052] Alternatively, the striking plate 24 has a graduated thickness, being thicker in the center and thinner at the edges.

[0053] Naturally, the thickness of the striking plate 24 varies smoothly from the center to the edge.

[0054] This gradation means that even if the impact point is off-center, the areas closer to the center are still thicker and stiffer than the edge areas. This smooth transition creates a gradual decrease in stiffness from the center to the edges across the striking face 241, with no clear dividing line.

[0055] This allows the park golf club 100 to provide relatively good stability and energy transfer efficiency over a wider hitting area (including not only the absolute center but also the area near the center), and it exhibits tolerance not only for deviations from the absolute center but also for adaptability to changes in the hitting area, resulting in a more gradual change in hitting effect between different hitting points. In addition, the gradual change in thickness reduces stress concentration, suppresses significant vibrations that occur when hitting the ball, makes stress distribution more uniform, and allows for smoother vibration transitions.

[0056] In a preferred embodiment, as shown in Figures 3 and 4, the hitting surface 241 has a flat, planar structure with no curvature, and the hitting surface 241 is perpendicular to the plane on which the bottom of the head body 21 is located.

[0057] Naturally, the plane on which the bottom of head body 21 is located refers to the plane on which head body 21 comes into contact with the ground when hitting a ball, and this plane is perpendicular to hitting surface 241. As shown in Fig. 4, a 90° angle is formed between hitting surface 241 and the bottom surface of head body 21 connected to hitting surface 241, and no additional angle design is implemented.

[0058] Naturally, because the striking surface 241 is flat and has no curvature, and is perpendicular to the bottom surface, it ensures uniformity of the contact surface with the ball at the moment of impact, avoiding the side spin and deviation of the ball that can occur with a curved surface design, and improving the accuracy of control of the ball's direction, making it particularly suitable for situations that require accurate putting or hitting a straight ball. Furthermore, because the striking surface 241 is completely flat, the mechanical response when the ball contacts the striking surface 241 is more stable and predictable, allowing the user to more accurately sense the location of the impact point and the magnitude of the impact force, contributing to the improvement of hitting technique and adjustment ability.

[0059] As shown in Figures 1, 4 and 6, the head assembly 200 further includes a shim 27, which is installed on the outer surface of the head body 21 and sandwiched between the positioning hole 231 and the positioning rod 300.

[0060] In the embodiment of the present invention, the shim 27 is made of an elastic material such as rubber, silicone, etc., and can fill the slight gap between the positioning rod 300 and the edge of the positioning hole 231 .

[0061] In this way, installing the shim 27 prevents dust, moisture, rainwater, etc. from entering the inside of the head body 21 through the gap between the positioning hole 231 and the positioning rod 300, protecting precision parts such as the internal mounting cavity 211, positioning rod 300, and sleeve 400 from corrosion, contamination, or damage, and extending the life of the park golf club 100, particularly in an outdoor park environment. It also exerts a certain positional restriction effect on the positioning rod 300, preventing axial movement of the positioning rod 300 and improving the stability of the connection between the positioning rod 300 and the head body 21.

[0062] The above description has fully disclosed the specific embodiments of the present invention. Any modifications made by those skilled in the art to the specific embodiments of the present invention will not depart from the scope of the claims of the present invention. Therefore, the scope of the claims of the present invention should not be limited to the specific embodiments described above. [Explanation of symbols]

[0063] 100 park golf club, 200 head assembly, 21 head body, 211 mounting cavity, 22 upper cover, 221 opening, 23 base, 231 positioning hole, 24 striking plate, 241 striking surface, 25 extension portion, 26 rib structure, 27 shim, 300 positioning rod, 400 sleeve, 41 through hole, 42 connecting end, 43 mating groove, 44 engaging portion, 500 mating sleeve, 600 shaft, 700 grip, 71 internal cavity structure, extension direction of Y shaft.

Claims

1. A park golf club, a shaft made of carbon fiber material; a head assembly including a head body, a positioning rod, and a sleeve, the head body having an attachment cavity therein, the sleeve being installed in the attachment cavity, a sidewall of the attachment cavity including a striking plate, the head body having a positioning hole and an opening at both ends of the striking plate, the positioning rod being insertable into the attachment cavity through the positioning hole and forming a non-zero preset angle with the striking plate, one end of the sleeve being connected to the positioning rod and the other end of the sleeve being connected to the opening, the head assembly being used for connection with the shaft; A park golf club comprising:

2. The cross section of the shaft along the extension direction of the shaft is polygonal, 2. The park golf club according to claim 1, wherein the sleeve is provided with a fitting groove that fits the cross-sectional shape of the shaft, and one end of the shaft is fitted into the fitting groove.

3. 3. The park golf club according to claim 2, wherein a grip is fitted onto the end of the club away from the head assembly, the grip having an internal cavity structure that matches the cross-sectional shape of the shaft.

4. The park golf club according to claim 2, characterized in that a fitting sleeve is further fitted onto the outer periphery of the shaft, and an engagement portion for abutting against the fitting sleeve is provided on the inner wall of the fitting groove.

5. 2. The park golf club of claim 1, wherein the head body includes an upper cover, a base, and the striking plate, the positioning hole is located in the base, the opening is located in the upper cover, the striking plate is located between the upper cover and the base, and the mounting cavity is formed by being surrounded by the upper cover, the base, and the striking plate.

6. 6. The park golf club according to claim 5, wherein the upper cover and the base are provided with an extension at the connection portion at the end away from the striking plate, and the two extensions are in close contact with each other to form a rib structure protruding from the surface of the head body.

7. The thickness of the center of the striking plate is greater than the thickness of the edge of the striking plate; Alternatively, the striking plate has a structure with a gradually changing thickness, being thicker in the center and thinner at the edges.

8. 2. The park golf club according to claim 1, wherein a striking surface for striking a ball is formed on an outer wall of the striking plate, the striking surface having a flat, planar structure without curvature, and the striking surface is perpendicular to a plane on which the bottom of the head body is located.

9. 2. The park golf club according to claim 1, wherein the head body has an integrally molded structure.

10. 2. The park golf club according to claim 1, wherein the head assembly further includes a shim, the shim being sandwiched between the positioning hole and the positioning rod.

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