Park Golf Club

Abstract

To provide a park golf club which significantly reduces the possibility of deformation of the club head by improving the insufficient adhesion, shaking, twisting, etc., which occur when the head body and the face plate are joined on a flat surface, and which can increase the flying distance when hitting while improving the directionality and straightness when hitting the ball. [Solution] The embodiment relates to a park golf club 10 including a grip portion 100; a shaft portion 200 formed by extending from one end of the grip portion; and a club head portion 300 fastened to one end of the shaft portion, wherein the club head portion relates to a park golf club including a head body having a shaft fastening groove to which the shaft portion is fastened formed in at least a portion of an upper surface and a flat area formed on one side; a face plate configured to face and be coupled to the flat area of ​​the head body; and a metal slate configured to cover the underside of the head body.

Description

[Technical field]

[0001] An embodiment of the present invention relates to a park golf club. [Background technology]

[0002] To briefly summarize Park Golf, it is "Park + Golf = Park Golf." It is a sport that combines the concept of a park with the game elements of golf and can be enjoyed by anyone, regardless of age or gender, in a small area.

[0003] One of the reasons why golf-related industries are enjoying a boom today and it is positioned as the most popular sport is that unlike other sports, golf courses themselves are natural environments, and golfers can get a good workout in nature, away from the complex and stressful life of cities. However, there are problems with the high costs of purchasing expensive equipment and holding expensive memberships to enter and leave the golf course, and the need for a large area of ​​about 300,000 square meters for 18 holes.

[0004] Park golf takes advantage of these advantages of traditional golf and corrects and complements its disadvantages. It requires only simple equipment (one golf club, one ball, and one tee) and the area of ​​a park golf course is 1 / 100 the size of an existing regular golf course, making it possible to play golf in small green spaces such as parks.

[0005] In the case of park golf, there are some differences between the rules and regular golf in terms of equipment, and there are also differences in the golf clubs used to play park golf.

[0006] In this regard, Korean Patent Publication No. 10-0890057 discloses a park golf club head. This prior art applies a multi-layer structure by laminating an absorbing member on an inner core made of a wooden material, and compared with a conventional single-layer structure of one inner core material, the total weight of the club head is reduced in the same volume, and the face part can be formed wider, increasing the hitting range, and the amount of impact transmitted to the user is reduced by absorbing the impact energy caused by hitting with a park golf ball. By laminating a metal member on the inner core made of a wooden material, the total weight of the club head is increased or the face part can be formed narrower, increasing the difficulty of hitting and providing a strong impact energy caused by hitting with a park golf ball.

[0007] Also, Korean Patent Publication No. 10-2037379 discloses a golf club head for park golf, comprising: a head body; and a face member integrated with the head body to form a ball-striking surface for striking a ball, the face member comprising a first reinforcing member having a first groove formed on a surface opposite the ball-striking surface; and a second reinforcing member having a second groove formed in a direction facing the first groove, the first reinforcing member and the second reinforcing member being joined together such that the first groove and the second groove face each other, and a space is formed between the first groove and the second groove. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Republic of Korea Patent Publication No. 10-0890057 [Patent Document 2] Republic of Korea Patent Publication No. 10-2037379 Summary of the Invention [Problem to be solved by the invention]

[0009] The embodiment of the present invention aims to provide a park golf club that improves the insufficient adhesion, shaking, twisting, etc. that occur when flatly bonding by bonding the head body and the face plate using an embossing process or an uneven bonding method to process the area between the head body and the face plate into an uneven shape, thereby significantly reducing the possibility of deformation of the club head and improving the directionality and straightness of the ball when hitting it, while also increasing the distance when hitting it.

[0010] In addition, the embodiment of the present invention aims to provide a park golf club in which a metal slate attached to the underside of the head body is configured to cover the underside and rear area of ​​the head body, thereby designing the club head with a low center of gravity, improving swing weight, directionality, and distance while improving the hitting feel, and maximizing the durability and stability of the park golf club. Also, it is an object of the present invention to provide a park golf club in which a pad is additionally attached to the rear surface of the head when hitting with a wooden material, thereby preventing breakage and damage to the head.

[0011] Another object of the present invention is to provide a park golf club in which an elastic connecting member that is elastically extended in both directions between the shaft and the club head is provided, thereby maintaining left-right balance of the park golf club while preventing overload during a swing and preventing damage to the shaft.

[0012] In addition, the embodiment of the present invention aims to provide a park golf club that has functionally increased anti-virus and corrosion resistance by manufacturing the metal slate attached to the underside of the head body from a special copper alloy according to one embodiment of the present invention, can realize a low center of gravity under load while improving the directional properties of the park golf club, and can express a color sense with a luxurious image.

[0013] The technical problems to be achieved in the embodiments are not limited to those mentioned above, and other technical problems not mentioned can be considered by those skilled in the art from the various embodiments described below. [Means for solving the problem]

[0014] According to an embodiment, a park golf club includes a grip portion; a shaft portion formed by extending from one end of the grip portion; and a club head portion fastened to one end of the shaft portion, the club head portion may include a head body having a shaft fastening groove to which the shaft portion is fastened formed in at least a partial area of ​​an upper side and a flat area formed on one side; a face plate configured to be coupled to and face the flat area of ​​the head body; and a metal slate configured to cover the underside of the head body.

[0015] According to another embodiment, the face plate has at least one bonding protrusion protruding from a bonding surface to be bonded to the head body, the flat area of ​​the head body has a shape corresponding to the bonding surface of the face plate and has at least one bonding recessed portion recessed to accommodate the bonding protrusion, the bonding protrusion is inserted corresponding to the bonding recessed portion, and an adhesive material is applied between the bonding surface of the face plate and the flat area of ​​the head body.

[0016] According to another embodiment, the shaft portion may have a through hole formed in a radial direction perpendicular to a length direction of the shaft portion at a predetermined distance from one end thereof, and an elastic coupling member configured to be elastically extended in the radial direction of the shaft portion and protrude a predetermined distance outward in the radial direction of the shaft portion may be disposed in the through hole. The elastic coupling member may include a first coupling member having a shape corresponding to the through hole so as to be insertable into the through hole and having one side recessed to form an accommodation space inside; a second coupling member having a predetermined length and inserted into the accommodation space of the first coupling member; and a spring member configured to be provided between a recessed surface of the accommodation space and a side surface of the second coupling member inserted into the accommodation space, thereby elastically supporting between the recessed surface of the first coupling member and the side surface of the second coupling member. The shaft fastening groove may include a vertical fastening groove formed by recessing a predetermined depth in a downward direction on an upper side surface of the head body; and side fastening grooves formed by recessing in both directions perpendicular to the length direction of the vertical fastening groove in an inner circumferential surface region having a predetermined height from a lower end of the vertical fastening groove.

[0017] According to another embodiment, the metal slate may be composed of a first slate surface consisting of a curved surface protruding toward the ground as an area formed by extending rearward from the frame of the flat area that is coupled to the face plate on the underside of the head body when coupled to the head body; a second slate surface formed by extending rearward from the rear end of the first slate surface and extending upward at a predetermined angle, thereby forming a predetermined bending angle with the first slate surface; and a third slate surface formed by extending upward from the rear end of the second slate surface, thereby configured to cover the rear area of ​​the head body when coupled to the head body.

[0018] According to an embodiment, the metal slate may be characterized by containing 65% to 70% by weight of copper, 26% to 35% by weight of zinc, 0.5% to 2% by weight of tin, and 0.5% to 2% by weight of aluminum, with boron and silver oxide being added thereto. Effect of the Invention

[0019] According to the park golf club according to one embodiment of the present invention, the head body and the face plate are joined through an embossing process or an uneven joining method, which processes the surface between the head body and the face plate into an uneven shape. This improves the insufficient adhesion, shaking, twisting, etc. that occur when joining flat surfaces, significantly reducing the possibility of deformation of the club head, and also improves the directionality and straightness of the ball when hitting it, while increasing the flight distance when hitting it.

[0020] In addition, according to the park golf club according to one embodiment of the present invention, the metal slate attached to the underside of the head body is configured to cover the lower and rear areas of the head body, thereby designing the club head with a low center of gravity, improving swing weight, directionality and distance, improving hitting feel, and maximizing durability and stability of the park golf club.

[0021] In addition, according to the park golf club according to one embodiment of the present invention, an elastic connecting member that elastically extends in both directions is provided between the shaft and the club head, thereby maintaining the left-right balance of the park golf club while preventing overload during a swing, thereby preventing damage to the shaft.

[0022] In addition, according to the park golf club according to an embodiment of the present invention, the metal slate attached to the underside of the head body is made of the special copper alloy according to an embodiment of the present invention, which functionally increases anti-virus and corrosion resistance, improves the directional properties of the park golf club, realizes a low center of gravity under load, and produces a clear popping sound when hitting the ball, providing the user with a stable hitting feel, and also expresses a color sense with a luxurious image.

[0023] The effects obtained from the embodiments are not limited to those mentioned above, and other effects not mentioned can be clearly derived and understood by those skilled in the art based on the following detailed description. [Brief description of the drawings]

[0024] The accompanying drawings, which are included as part of the detailed description to aid in understanding the embodiments, provide various embodiments and, together with the detailed description, explain the technical features of the various embodiments. [Figure 1] 1 is a schematic perspective view illustrating a park golf club according to an embodiment of the present invention. [Diagram 2] 1 is a schematic perspective view illustrating a club head according to an embodiment of the present invention; [Diagram 3] 4 is a schematic exemplary view illustrating a coupling structure between a head body and a face plate according to an embodiment of the present invention; FIG. [Figure 4] 1 is a schematic side view illustrating a club head including a metal slate according to an embodiment of the present invention; [Diagram 5] 2 is a schematic diagram illustrating a striking surface of a face plate according to an embodiment of the present invention; FIG. [Figure 6] 2A and 2B are schematic bottom and plan views illustrating a club head according to an embodiment of the present invention. [Figure 7] 2 is a schematic cross-sectional view illustrating a coupling structure between a shaft portion and a club head portion according to an embodiment of the present invention; [Figure 8]2 is a schematic cross-sectional view illustrating an elastic coupling member according to an embodiment of the present invention; [Figure 9] 11A to 11C are operation example views illustrating a process in which a shaft part and a club head part are coupled together through an elastic coupling member according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] The following embodiments combine components and features of the embodiments in a predetermined form. Each component or feature may be considered optional unless otherwise specified. Each component or feature may be implemented in a form not combined with other components or features. In addition, some components and / or features may be combined to configure various embodiments. The order of operations described in various embodiments may be changed. Some components or features of one embodiment may be included in another embodiment, or may be replaced with corresponding components or features of another embodiment.

[0026] In the description of the drawings, procedures or steps that may obscure the gist of various embodiments are not described, and procedures or steps that can be understood by a person with ordinary skill in the art are not described.

[0027] Throughout the specification, when a part "comprising" or "including" a certain element, this does not mean excluding other elements, but may further include other elements, unless specifically stated to the contrary. In addition, the terms "part," "unit," "module," and the like described in the specification mean a unit that processes at least one function or operation, which may be realized in hardware, software, or a combination of hardware and software. In addition, the words "a" or "an," "one," "the," and similar related words may be used in the context of describing various embodiments (particularly in the context of the claims below) to include the singular and plural, unless otherwise indicated in the specification or clearly contradicted by the context.

[0028] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. The detailed description disclosed below in conjunction with the accompanying drawings is intended to describe exemplary embodiments of various embodiments and is not intended to represent the only embodiments.

[0029] Furthermore, the specific terms used in the various embodiments are provided to aid in understanding the various embodiments, and the use of such specific terms may be modified in other forms without departing from the technical spirit of the various embodiments.

[0030] FIG. 1 is a schematic perspective view for explaining a park golf club 10 according to an embodiment of the present invention. FIG. 2 is a schematic perspective view for explaining a club head 300 according to an embodiment of the present invention. FIG. 3 is a schematic exemplary view for explaining a coupling structure between a head body 310 and a face plate 320 according to an embodiment of the present invention. FIG. 4 is a schematic side view for explaining a club head 300 including a metal slate 330 according to an embodiment of the present invention. FIG. 5 is a schematic exemplary view for explaining a ball-hitting surface 324 of a face plate 320 according to an embodiment of the present invention. FIG. 6 is a schematic bottom view and a schematic plan view for explaining a club head 300 according to an embodiment of the present invention. FIG. 7 is a schematic cross-sectional view for explaining a coupling structure between a shaft 200 and a club head 300 according to an embodiment of the present invention. FIG. 8 is a schematic cross-sectional view for explaining an elastic coupling member 220 according to an embodiment of the present invention. FIG. 9 is an exemplary operation view for explaining a process in which the shaft 200 and the club head 300 are coupled via the elastic coupling member 220 according to an embodiment of the present invention.

[0031] Referring to FIG. 1, a park golf club 10 according to one embodiment of the present invention may include a grip portion 100, a shaft portion 200 formed by extending from one end of the grip portion 100, and a club head portion 300 fastened to one end of the shaft portion 200.

[0032] The grip part 100 according to an embodiment of the present invention may be made of a leather material so that the user can easily grip it, and may have a spiral grip line. The shaft part 200 according to an embodiment of the present invention may be made of a highly elastic carbon material, may have a long cylindrical shape, and may be configured so that the radius of the cross section becomes smaller from the upper end coupled to the grip part 100 to the lower end coupled to the club head part 300.

[0033] 2 to 4, the club head 300 according to an embodiment of the present invention may include a head body 310 having a shaft fastening groove 313 to which the shaft 200 is fastened formed in at least a portion of an upper surface and a flat area 311 formed on one side, a face plate 320 configured to face and be coupled to the flat area 311 of the head body 310, and a metal slate 330 configured to cover the lower side of the head body 310. For reference, the head body 310 may be made of a wood material (e.g., maple tree, etc.), and the face plate 320 may be made of a carbon material.

[0034] 3(a), the face plate 320 according to the embodiment of the present invention may have at least one embossed protrusion 322 for coupling which is protruded by embossing on a coupling surface 321 to be coupled to the head body 310. The face plate 320 according to the embodiment of the present invention may have one surface formed as a ball striking surface 324 and the other surface formed as a coupling surface 321 to be coupled to the flat region 311 of the head body 310. As an example, the coupling surface 321 of the face plate 320 according to the embodiment of the present invention may have a total of seven embossed protrusions 322, including three in an upper region and four in a lower region.

[0035] In addition, the flat area 311 of the head body according to an embodiment of the present invention may have a shape corresponding to the coupling surface 321 of the face plate 320, and may include at least one coupling recess 312 that is recessed to accommodate the coupling embossed protrusion 322. For reference, Fig. 3(a) shows the face plate 320 according to an embodiment of the present invention viewed from the direction in which the coupling surface 321 is provided, Fig. 3(b) shows the head body 310 according to an embodiment of the present invention in a schematic manner, and Fig. 3(c) shows the face plate 320 and the head body 310 viewed from the side.

[0036] As an example, the flat area 311 of the head body 310 according to an embodiment of the present invention may have a plurality of coupling recesses 312 at positions corresponding to the coupling embossed protrusions 322 of the face plate 320 when the face plate 320 and the head body 310 are coupled together. In addition, according to an embodiment of the present invention, the coupling embossed protrusions 322 may be inserted corresponding to the coupling embossed recesses 312, and an adhesive material may be applied between the coupling surface 321 of the face plate 320 and the flat area 311 of the head body 310. That is, when the face plate 320 and the head body 310 are coupled together, the coupling embossed protrusions 322 may be inserted and fixed into the coupling embossed recesses 312, and an adhesive material may be applied to the coupling surface 321 of the face plate 320 and the flat area 311 of the head body 310 when the face plate 320 and the head body 310 are coupled together, or the coupling embossed protrusions 322 and the coupling embossed recesses 312 may be coupled together with an adhesive material applied to the surfaces of the coupling embossed protrusions 322 and the coupling embossed recesses 312.

[0037] According to an embodiment of the present invention, a plurality of bonding projections 322 are provided on a bonding surface 321 of a face plate 320, and a plurality of bonding recesses 312 are provided on a flat area 311 of a head body 310, so that the bonding surface 321 of the face plate 320 and the flat area 311 of the head body 310 can be embossed or embossed. This increases the adhesion when bonded together, and prevents shaking and twisting of the bonding area between the head body 310 and the face plate 320. Due to the close bonding, the support force of the head body 310 against the face plate 320 is increased, and the flying distance when hitting the ball is increased, and the directionality and straightness are further improved.

[0038] 7 to 9, the shaft portion 200 according to an embodiment of the present invention may have through holes 210 formed at one end at a predetermined distance in a radial direction perpendicular to the length direction of the shaft portion 200. That is, the shaft portion 200 may have through holes 210 formed at a predetermined height position at a lower end in a direction perpendicular to the length direction of the shaft portion 200. Also, the shaft portion 200 may further include a head connection cover portion 230 configured to cover at least a portion of the lower side. This can increase durability against impact applied to the shaft portion 200 when hitting a ball.

[0039] According to an embodiment of the present invention, an elastic coupling member 220 configured to be elastically extended in the radial direction of the shaft portion 200 and to protrude a predetermined distance outward in the radial direction of the shaft portion 200 (in the left-right direction in FIG. 8 for reference) may be disposed in the through hole 210 of the shaft portion 200. As an example, the elastic coupling member 220 according to an embodiment of the present invention may include a first coupling member 221 having a shape corresponding to the through hole 210 so as to be insertable into the through hole 210 and having an accommodation space 222 formed therein by being depressed at one side, a second coupling member 224 having a predetermined length and inserted into the accommodation space 222 of the first coupling member 221, and a spring member 225 configured to be provided between a depressed surface 223 of the accommodation space 222 and a side surface of the second coupling member 224 inserted into the accommodation space 222 to elastically support between the depressed surface 223 of the first coupling member 221 and a side surface of the second coupling member 224.

[0040] According to one embodiment of the present invention, the first connecting member 221 may have a cylindrical shape having a diameter corresponding to the diameter of the through hole 210 formed in the shaft portion 200 so that it can be inserted into the through hole 210 formed in the shaft portion 200, and one side may be recessed inward to form the accommodating space 222, and the accommodating space 222 may be formed by being covered by a recessed surface 223 forming the bottom surface of the accommodating space 222 and the inner peripheral surface of the cylinder.

[0041] According to an embodiment of the present invention, the second coupling member 224 may be configured in a cylindrical shape having a diameter corresponding to the diameter of the accommodating space 222 of the first coupling member 221 so as to be insertable into the accommodating space 222 of the first coupling member 221. As described above, the spring member 225 may be configured to be inserted into the accommodating space 222 of the first coupling member 221 and elastically support between the recessed surface 223 of the first coupling member 221 and one side surface of the second coupling member 224, thereby causing the second coupling member 224 inserted into the accommodating space 222 of the first coupling member 221 to protrude outward.

[0042] That is, the elastic coupling member 220 according to one embodiment of the present invention is provided in the through hole 210 of the shaft portion 200, and when no pressure is applied from the outside, it maintains a protruding state on both sides of the through hole 210 of the shaft portion 200, and when pressure is applied to the elastic coupling member 220 in the inward direction of the through hole 210, it may be compressed and retracted into the internal space of the through hole 210 of the shaft portion 200.

[0043] Also, the shaft fastening groove 313 of the head body 310 according to an embodiment of the present invention may be composed of a vertical fastening groove 314 formed by recessing a predetermined depth in a downward direction from an upper side of the head body 310, and a side fastening groove 315 formed by recessing in both directions perpendicular to the length direction of the vertical fastening groove 314 in an inner peripheral surface area having a predetermined height from a lower end of the vertical fastening groove 314. The distance from the bottom surface of the shaft fastening groove 313 to the side fastening groove 315 may be the same as the distance from the lower end surface of the shaft part 200 to the through hole 210. That is, the shape of the shaft fastening groove 313 may be configured to correspond to the shape of the lower end area of ​​the shaft part 200 where the elastic coupling member 220 is provided.

[0044] As shown in FIG. 9(a), before the shaft portion 200 is inserted into the shaft fastening groove 313 of the head body 310, the elastic coupling member 220 may be in a state of protruding from both sides of the through hole 210 of the shaft portion 200. As shown in FIG. 9(b), pressure may be applied to both sides of the elastic coupling member 220 to pull the elastic coupling member 220 into the through hole 210 of the shaft portion 200, and the elastic coupling member 220 may be inserted into the vertical fastening groove 314 of the shaft fastening groove 313 of the head body 310. As shown in FIG. 9(c), when the bottom surface of the shaft portion 200, i.e., the lower end, is brought into close contact with the bottom surface of the vertical fastening groove 314, the first coupling member 221 and the second coupling member 224 of the elastic coupling member 220 may be protruded from both sides and fastened to the side fastening grooves 315, respectively, to be fixed.

[0045] The conventional method of connecting the shaft 200 and the club head by integrally passing a screw member through the shaft 200 and the head body 310 has a drawback in that it causes an imbalance in the load on both sides of the club head and makes it difficult to maintain a consistent straightness toward the target direction during a swing. However, the present invention connects the shaft 200 and the head body 310 to each other via an elastic connecting member 220, thereby making it possible to maintain the load balance of the club head 300 during a swing and to prevent the club head 300 from being overloaded, thereby significantly reducing the probability of damage to the shaft 200. Additionally, as shown in FIG. 5, the shaft 200 according to an embodiment of the present invention may be connected to the club head 300 in a direction inclined at a predetermined angle. Accordingly, the shaft connecting groove 313 of the head body 310 may also be formed in a direction inclined at a predetermined angle. For reference, when one end of the shaft portion 200 is inserted into the shaft fastening groove 313 of the head body 310, an adhesive material may be additionally applied to the mutual contact area.

[0046] Meanwhile, referring to FIG. 4 and FIG. 6, the metal slate 330 according to one embodiment of the present invention may be configured with a first slate surface 331 consisting of a curved surface protruding toward the ground as an area formed by extending rearward from the frame of the flat area 311 that is coupled to the face plate 320 on the underside of the head body 310 when coupled to the head body 310, a second slate surface 332 formed by extending rearward from the rear end of the first slate surface 331 and bending upward by a predetermined angle to form a predetermined bending angle with the first slate surface 331, and a third slate surface 333 formed by extending upward from the rear end of the second slate surface 332, configured to cover the rear area of ​​the head body 310 when coupled to the head body 310.

[0047] More specifically, the metal slate 330 according to an embodiment of the present invention may cover the lower side of the head body 310 and be coupled to the head body 310. The first slate surface 331 may be a region formed by extending rearward (for reference, rightward in FIG. 4) from the frame of the lower region of the flat region 311 coupled to the face plate 320, i.e., the leading edge 327 of the plate frame part 325, or may have a curved shape protruding toward the ground in response to the shape of the leading edge 327 curved downward, and may cover the front region of the lower surface of the head body 310 (for reference, the region corresponding to the distance D1 in FIG. 4 and FIG. 6). The second slate surface 332 is an area formed by bending and extending upward (i.e., toward the shaft portion 200) at a predetermined angle from the rear end of the first slate surface 331 (for reference, the right end in FIG. 4) and can cover the rear area of ​​the lower surface of the head body 310 (for reference, the area corresponding to the D2 interval in FIG. 4 and FIG. 6). The third slate surface 333 is an area formed by extending upward (i.e., toward the opposite side of the ground) from the rear end of the second slate surface 332 and can cover the rearmost area of ​​the lower surface of the head body 310 (for reference, the area corresponding to the D3 interval in FIG. 4 and FIG. 6) and the rear area of ​​the head body 310. Similarly, the third slate surface 333 may be bent and extended at a predetermined angle in the extension direction of the second slate surface 332 to form a predetermined bending angle with the second slate surface 332.

[0048] For reference, Fig. 6(a) is a bottom view of the club head part 300 according to an embodiment of the present invention, and Fig. 6(b) is a top view of the club head part 300 according to an embodiment of the present invention. As shown in Fig. 6, the third slate surface 333 of the metal slate 330 according to an embodiment of the present invention may be configured to cover the rearmost region of the lower surface of the head body 310 (i.e., the region corresponding to the D3 interval), the rear region, and the rearmost region of the upper surface. As a result, the impact applied to the face plate 320 during hitting the ball can be distributed and transmitted to the entire surface area of ​​the head body 310 along the first slate surface 331, the second slate surface 332, and the third slate surface 333 of the metal slate 330, preventing the club head 300 from colliding with a rear object and being damaged during a swing, and vibration during hitting the ball is transmitted from the first slate surface 331, which has a relatively large area, to the third slate surface 333, which has a relatively small area, via the second slate surface 332, generating vibration sound, thereby improving the impact sound. In addition, the rear support force of the club head 300 during hitting the ball can be maximized, thereby improving the hitting feeling of the user and further increasing the flight distance, and the stable low center of gravity design of the club head 300 can be realized to improve the swing weight, directionality, and flight distance, while improving the hitting feeling, and maximizing the durability and stability of the park golf club 10.

[0049] For reference, the first slate surface 331, the second slate surface 332, and the third slate surface 333 of the metal slate 330 according to an embodiment of the present invention may be integrally formed. That is, the first slate surface 331, the second slate surface 332, and the third slate surface 333 may be formally divided based on an area of ​​a single surface extending from the front side to the rear side in contact with the face plate 320 and bending at a predetermined angle. Also, the areas of the first slate surface 331, the second slate surface 332, and the third slate surface according to an embodiment of the present invention may be smaller in the order of the first slate surface 331, the second slate surface 332, and the third slate surface 333. In addition, the front-to-rear extension length of the first slate surface 331 (for reference, length D1 in Figures 4 and 6) may be formed longer than the front-to-rear extension length of the second slate surface 332 (for reference, length D2 in Figures 4 and 6), and the front-to-rear extension length of the second slate surface 332 (for reference, length D2 in Figures 4 and 6) may be formed longer than the front-to-rear extension length of the third slate surface 333 (for reference, length D3 in Figures 4 and 6).

[0050] In addition, the metal slate 330 according to an embodiment of the present invention may be characterized by containing 65% to 70% copper by weight, 26% to 35% zinc by weight, 0.5% to 2% tin by weight, and 0.5% to 2% aluminum by weight, and boron and silver oxide are added. That is, by forming the metal slate 330 from copper, zinc, tin, and aluminum according to the above ratios and adding boron, silver oxide, etc. to adjust the alloy ratio, it is possible to easily reproduce various gold hues (e.g., 18K, 20K, 22K, and 24K gold hues) that are characteristic of gold color, and to function as an antibacterial and antiviral role when in contact with the skin.

[0051] In addition, the metal slate 330 is functionally enhanced in antiviral and corrosion resistance, and the directionality of the park golf club 10 is improved while realizing a low center of gravity under load. When the ball is hit, a clear popping sound is produced, providing the user with a stable hitting feel, and in addition, a color sense with a high-class image can be expressed.

[0052] In this regard, if the copper content of the metal slate 330 is less than 65% by weight, the antiviral and corrosion resistance may be insufficient, and the ease of maintenance of the club head part 300 may be reduced. If the copper content of the metal slate 330 is more than 70% by weight, the durability of the club head part 300 may not be guaranteed when hitting a ball. If the zinc content of the metal slate 330 is less than 26% by weight, the color aesthetic of the metal slate 330 may be reduced and the corrosiveness to the external environment may be increased. If the zinc content of the metal slate 330 is more than 35% by weight, the durability of the metal slate 330 may be reduced. If the tin content is less than 0.5% by weight, the workability and stability of the metal slate 330 may be reduced, and if the tin content is more than 2% by weight, the color aesthetic of the metal slate 330, which has a golden color, may be reduced. In addition, if the aluminum content of the components is less than 0.5% by weight, resistance to changes in the external environment may be reduced, and if the aluminum content of the components is more than 2% by weight, it may be difficult to ensure the appropriate weight of the club head 300 when hitting the ball.

[0053] Meanwhile, referring to Fig. 3, Fig. 4 and Fig. 6, the head body 310 according to the embodiment of the present invention may have a face plate 320 attached to the front side and a metal plate 330 attached to the bottom and rear sides. In addition, the upper region of the head body 310 according to the embodiment of the present invention may have a shaft fastening groove 313 formed in at least a part of the region, a head upper side 316 formed as a curved surface that protrudes upward, and a head side part 317 that is bent downward at a predetermined angle on both sides of the head upper side 316 to connect the head upper side 316 to the bottom region of the head body 310 to which the metal plate 330 is attached. In addition, the area of ​​the rear region of the head body 310 to which the third plate surface 333 of the metal plate 330 is attached may be smaller than the area of ​​the front flat region 311 of the head body 310 to which the face plate 320 is attached.

[0054] 5, the face plate 320 according to an embodiment of the present invention may have a ball-striking surface 324 formed on a surface opposite to a surface coupled to the front flat area 311 of the head body 310. The face plate 320 may further include a plate frame 325 surrounding an edge of the ball-striking surface 324.

[0055] First, as shown in Fig. 5, the hitting surface 324 according to an embodiment of the present invention may have a lattice shape as the carbon embossed portions 3242 and the carbon recessed portions 3241 formed by recessing are alternately and continuously arranged in the up, down, left and right directions. Also, the thickness of the leading edge 327 forming the lower region of the plate frame 325 may be made thicker than the thickness of the upper frame 326 forming the upper region of the plate frame 325 surrounding the edge of the hitting surface 324. The lower region of the plate frame 325 according to an embodiment of the present invention may be made of the leading edge 327 having a predetermined curvature so as to protrude toward the ground, and the thickness of the leading edge 327 is made thicker than the thickness of other regions of the plate frame 325 including the upper frame 326, thereby preventing damage to the club head 300 due to friction with the ground and more easily realizing a low center of gravity design of the club head 300, thereby enabling the park golf club 10 to swing and direct the ball stably when hitting the ball. For reference, in addition to the connecting embossment 322, the ball striking face 324 may be provided with a plate screw fastener 323 through which a screw passes. The plate screw fastener 323 is used to screw the face plate 320 and the head body 310 together, thereby further increasing the connecting force between the face plate 320 and the head body 310.

[0056] As described above, according to the park golf club according to one embodiment of the present invention, the head body and the face plate are joined through an embossing process or an uneven joining method, which processes the surface between the head body and the face plate into an uneven shape. This improves the lack of adhesion, shaking, twisting, etc. that occurs when joining flat surfaces, significantly reducing the possibility of deformation of the club head, and also improves the directionality or straightness of the ball when hitting it, while increasing the flight distance when hitting it.

[0057] In addition, according to the park golf club according to one embodiment of the present invention, the metal slate attached to the underside of the head body is configured to cover the lower and rear areas of the head body, thereby designing the club head with a low center of gravity to improve swing weight, directionality and distance, improve hitting feel, and maximize durability and stability of the park golf club.

[0058] In addition, according to the park golf club according to one embodiment of the present invention, an elastic connecting member that elastically extends in both directions is provided between the shaft and the club head, thereby maintaining the left-right balance of the park golf club while preventing overload during a swing, thereby preventing damage to the shaft.

[0059] In addition, according to the park golf club according to an embodiment of the present invention, the metal slate attached to the underside of the head body is made of the special copper alloy according to an embodiment of the present invention, which functionally increases anti-virus and corrosion resistance, improves the directional properties of the park golf club, realizes a low center of gravity under load, and produces a clear popping sound when hitting the ball, providing the user with a stable hitting feel, and also expresses a color sense with a luxurious image.

[0060] The effects obtained from the embodiments are not limited to those mentioned above, and other effects not mentioned will be clearly derived and understood by those having ordinary skill in the art based on the following detailed description.

[0061] The above-mentioned various embodiments may be embodied in other specific forms without departing from the technical ideas and essential features thereof. Therefore, the above detailed description should not be interpreted as limiting in all respects, but should be considered as illustrative. The scope of the various embodiments should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the various embodiments are included in the scope of the various embodiments. In addition, claims that do not have an explicit reference relationship in the claims may be combined to form an embodiment, or may be included in a new claim by amendment after filing. [Explanation of symbols]

[0062] 10. Park Golf Club 100 Grip 200 Shaft section 210 Through hole 220 Elastic joint member 221 First connecting member 222 Containment Space 223 Depression 224 Second connecting member 225 Spring member 230 Head connection cover part 300 Club head 310 Head body 311 Planar area 312 Intaglio depression for joining 313 Shaft fastening groove 314 Vertical fastening groove 315 Side fastening groove 316 Head upper surface 317 Head side 320 Faceplate 321 Bonding surface 322 Embossed protrusion for connection 323 Plate Screw Fastener 324 Ball hitting surface 325 Plate frame 326 Upper Frame 327 Leading Edge 330 Metal Slate 331 First Slate Surface 332 Second Slate Surface 333 3rd Slate Surface 3241 Carbon engraved part 3242 Carbon embossed part

Claims

1. A park golf club including a grip portion; a shaft portion formed by extending one end of the grip portion; and a club head portion fastened to one end of the shaft portion, The club head portion includes: a head body having a shaft fastening groove formed in at least a portion of an upper surface thereof and a flat surface formed on one side thereof; a face plate configured to face and be coupled to the planar region of the head body; and a metal slate configured to cover an underside of the head body; Including, The shaft portion has through holes formed at one end thereof at a predetermined distance therebetween in a radial direction perpendicular to a longitudinal direction of the shaft portion, an elastic coupling member is disposed in the through hole and configured to be elastically extended in a radial direction of the shaft portion, thereby protruding outward in the radial direction of the shaft portion by a predetermined distance; The elastic coupling member is a first coupling member having a shape corresponding to the through hole so as to be insertable into the through hole and having one side recessed to form an accommodation space therein; a second coupling member having a predetermined length and adapted to be inserted into the receiving space of the first coupling member; and a spring member provided between the recessed surface of the receiving space and a side surface of the second connecting member inserted into the receiving space, thereby providing elastic support between the recessed surface of the first connecting member and the side surface of the second connecting member; Including, The shaft fastening groove is a vertical fastening groove formed by being recessed downward to a predetermined depth on an upper surface of the head body; and a side fastening groove formed by recessing in both sides perpendicular to a length direction of the vertical fastening groove in an inner peripheral surface area having a predetermined height from a lower end of the vertical fastening groove.

2. The face plate includes: At least one embossed projection is provided on a surface of the head body to be joined to the head body. The planar area of ​​the head body is at least one recessed portion for bonding, the recessed portion having a shape corresponding to the bonding surface of the face plate and recessed to receive the embossed protrusion for bonding; 2. The park golf club according to claim 1, wherein the joining embossed protrusion is inserted into the joining recess, and an adhesive material is applied between the joining surface of the face plate and the flat area of ​​the head body.

3. The metal slate is a first slate surface formed as a curved surface protruding toward the ground as an area extending rearward from the periphery of the flat area that is coupled to the face plate on the lower surface of the head body when the head body is coupled to the face plate; a second slate surface extending rearward from a rear end of the first slate surface and bending upward at a predetermined angle to form a predetermined bending angle with the first slate surface; and a third slate surface formed by extending upward from a rear end of the second slate surface, thereby covering a rear area of ​​the head body when combined with the head body.

4. 4. The park golf club according to claim 3, characterized in that the metal slate contains 65% to 70% by weight of copper, 26% to 35% by weight of zinc, 0.5% to 2% by weight of tin, and 0.5% to 2% by weight of aluminum, with boron and silver oxide added.

Images