KR102440638B1 - Park golf club with excellent coupling durability between head and shaft - Google Patents

Abstract

The present invention relates to a park golf club composed of a head and a shaft. The park golf club comprises: a coupling space part (11) formed inside a head (10); a bolt (30) inserted from a bottom surface of the head (10) and protruding into the coupling space part (11); a first adhesive part (40a) formed on a head part of the bolt (30) and fixing the bolt (30) so that the bolt (30) does not move; a locking and fixing part (20a) integrally formed in a shaft (20) and having a through hole (20b) in the center; a second adhesive part (40b) formed by being poured into the coupling space part (11) before coupling the head (10) and the shaft (20); a third adhesive part (40c) formed on the locking and fixing part (20a) while the shaft (20) is inserted into the coupling space part (11), the bolt (30) penetrates the through hole (20b) of the locking and fixing part (20a) and protrudes above the locking and fixing part (20a), a nut (30a) is fastened to the protruding bolt (30), and an adhesive of the second adhesive part (40b) is pushed up between the bolt (30) and the through hole (20b) when the shaft (20) is inserted; and a fourth adhesive part (40d) formed by the adhesive of the second adhesive part (40b) which is pushed up between an inner wall of the coupling space part (11) and an outer surface of the shaft (20).

Description

Combination structure of park golf clubs with excellent combined durability of head and shaft {PARK GOLF CLUB WITH EXCELLENT COUPLING DURABILITY BETWEEN HEAD AND SHAFT}

The present invention relates to a park golf club for park golf, and more particularly, to a coupling structure of a park golf club in which a head and a shaft of the park golf club are firmly assembled to provide excellent bonding durability, and a coupling method thereof.

Park Golf is a lifestyle sport that anyone can enjoy easily in a relatively small space such as a park.

Regular golf requires a very large space, and you have to purchase expensive equipment with several golf clubs according to the distance. .

On the other hand, park golf is played on a relatively small lawn in a similar manner to golf, but it can be played with only one relatively cheap golf club and a ball. It is a sport that anyone can easily enjoy because it can be played, and the fact that it is played on the grass and that the tee box has to enter the hall cup with as few strokes as possible is as interesting as golf. It is a sport that is highly recommended as a daily physical exercise.

The present invention relates to such a park golf club for park golf.

Park golf clubs are generally composed of a wooden head and a carbon shaft, and the shaft is a tubular body with a hollow inside.

Park golf is a movement in which the head of the shaft hits the ball hard and sends the ball in the desired direction and distance, so shock and vibration are repeatedly applied to the head during the game. Therefore, even with such shocks and vibrations, the coupling between the head and the shaft is strong, so that the head cannot be moved or shaken so that it can be used for a long time.

However, the conventional head and shaft coupling method is a simple adhesive fixing method in which an adhesive is applied to the outer surface of the shaft and the inner surface of the coupling hole formed in the head and the shaft is inserted into the hole to fix it. There was an impossible problem.

In addition, there is a prior patent No. 197438, 'park golf club that can be used as a climbing stick' (hereinafter referred to as 'prior art').

This prior art makes it easy to combine and separate the head and shaft so that if any one of the components is damaged, only the damaged part can be replaced, and when the park golf club is not used, it can be used as a climbing stick by combining a stick tip instead of a head. will be.

However, such prior art cannot be said to have the advantage of improving the convenience of use or improving the robustness of the combination.

That is, the prior art is a configuration in which the bolt protruding from the bottom of the head is coupled and fastened with the screw hole of the assembly module when the head and the shaft are coupled. The assembly module inserted into the fastening groove of the head is also based on the adhesive fixing means, and the rigidity cannot be said to have been improved. Furthermore, as a configuration in which the loft angle of the head can be adjusted (70~72°) by rotation of the shaft, this prior art cannot be said to be a stronger coupling configuration than the conventional adhesive fixing, so it cannot be said that it has solved the problem of lack of durability that cannot be used for a long time. .

Domestic Registration Patent No. 10-1978438, 'Park golf club that can be used as a climbing stick'

Accordingly, it is an object of the present invention to provide a coupling configuration of a park golf club having excellent durability, and a method thereof, in which the head and the shaft are firmly coupled in assembling the park golf club so that the head does not easily flow or shake even after repeated blows.

In addition, another object of the present invention is to provide a shaft configuration and a method for manufacturing the same so that the coupling between the head and the shaft is strong.

The present invention according to the above object is in the park golf club consisting of a head and a shaft, the coupling space 11 formed inside the head 10, and the head 10 is inserted from the bottom surface and into the coupling space 11 The bolt 30 that protrudes, the first adhesive portion 40a formed on the head of the bolt 30 to fix the bolt 30 so that it does not flow, and the shaft 20 integrally formed with a through hole in the center (20b) a hole in the locking part (20a), a second adhesive part (40b) formed by pouring into the coupling space (11) before coupling the head (10) and the shaft (20), and the shaft (20) is inserted into the coupling space 11, and the bolt 30 penetrates the through hole 20b of the locking part 20a to protrude above the locking part 20a, and the nut 30a to the protruding bolt 30 ) and the third adhesive part 40c formed on the locking part 20a and the adhesive of the second adhesive part 40b is pushed up between the bolt 30 and the through hole 20b by inserting the shaft 20, 2 The adhesive of the adhesive part 40b is pushed up between the inner wall of the coupling space 11 and the outer surface of the shaft 20 to form a fourth adhesive part 40d, and the head 10 is installed on the outer surface of the shaft 20 fitted to the head 10 It is characterized in that it is composed of a support member 50 that is installed to surround the entire shaft 20 fitted to the head 10 in order to support the impact applied to the shaft 20 .

In addition, the present invention, in the coupling method of the park golf club consisting of a head and a shaft, by inserting the bolt 30 into the bottom bolt hole 11b of the coupling space 11 formed inside the head 10, the coupling space ( 11) to protrude inward, the bolt 30 protruding from the coupling space 11 is fixed by the first adhesive part 40a, and an adhesive is poured into the coupling space 11 to the second adhesive part 40b) is formed and the shaft 20 is inserted into the coupling space 11 before the adhesive of the second adhesive part A40 is cured to be coupled with the head 10, but the bolt 30 is caught by the fixing part 20a At the same time, the adhesive of the second adhesive part 40b is pushed up between the bolt 30 and the through hole 20b so as to protrude above the locking part 20a through the through hole 20b of the third adhesive part 40c is formed. and the adhesive of the second adhesive part 40b is pushed up between the inner wall of the coupling space 11 and the outer surface of the shaft 20 to form a fourth adhesive part 40d, and the shaft 20 and the coupling space It is characterized in that the support member 50 is installed so as to surround the entire shaft 20 fitted in the coupling space 11 between the parts 11 .

According to the present invention, the bolt 30 protruding from the bottom surface of the head 10 is coupled to the locking means formed in the shaft 20 by fastening the nut 30a, so the coupling is firm and the head 10 does not flow or shake even with continuous hitting. It has an excellent effect for accurate hitting and long-lasting use.

1 is a perspective view of a park golf club according to an embodiment of the present invention;
Figure 2 is a cross-sectional view of Figure 1;
3 is a cross-sectional view of the shaft of the present invention;
4 is a cross-sectional view of the head of the present invention;
5 is a cross-sectional view of another embodiment of the present invention;
Figure 6 is a cross-sectional configuration of the shaft of Figure 5;
7 is a cross-sectional view of the head of FIG. 5;
8 is a cross-sectional view of another embodiment of the present invention;
9 a to c show a method of manufacturing the shaft of the present invention,
9a is a state diagram in which the first forming rod and the second forming rod are combined;
9b is a cross-sectional view of the state in which the carbon fiber and cellophane tape are wound on the bottom in the state of FIG. 9a;
9c is a cross-sectional view of the shaft of the present invention in which the molding is completed;
9D is a cross-sectional view of a carbon shaft that has been manufactured;
10 to 13 are views showing an installation configuration of a shaft according to another embodiment;
14 to 16 are views showing a configuration in which the center line member is installed on the upper part of the head of the present invention.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2 of the present invention, the carbon shaft 20 is coupled to the wood head 10 and the shaft 20 is a tubular body having a hollow part therein.

In addition, in the portion where the shaft 20 of the present invention is coupled to the head 10, a ring-shaped support member 50, which is a metal material for supporting the shaft 20 of the coupling portion, is configured, and on the front surface of the head 10 that directly strikes the ball A carbon face member 12 is coupled and a copper plate 13 for protecting the head 10 is coupled to the bottom surface of the head 10, and these configurations are all common.

The characteristic configuration of the present invention is that the locking part 20a is integrally formed in the shaft 20 so that the bolt 30 protruding from the bottom surface of the head 10 penetrates the center of the locking part 20a and the locking part ( 20a) to protrude upward and to fasten the nut (30a).

To explain this in more detail, FIG. 2 is a cross-sectional configuration diagram of the present invention head 10 and shaft 20 coupled to each other, FIG. 3 is a cross-sectional configuration diagram of the shaft 20, and FIG. 4 is the head 10 ) is a cross-sectional diagram.

According to FIG. 3 , on the inner wall of the lower inner wall of the shaft 20 of the present invention, a locking part 20a having a through hole 20b through which the bolt 30 penetrates is formed in the center is protruded integrally with the inner wall of the shaft 20. .

According to FIG. 4 , a coupling space 11 for fitting the shaft 20 is formed inside the head 10 , and the bolt 30 passes through the plate-shaped bottom surface 11a of the coupling space 11 . A hole (11b) is drilled, and the bolt hole (11b) is a recess (11c) by inserting the bolt (30) so that the head of the bolt (30) enters slightly more than the bottom surface of the head (10), and then the bolt (30) After being inserted into the bolt hole 11b, the concave portion 11c is filled with adhesive to form the first adhesive portion 40a, so that the bolt 30 protrudes into the coupling space 11 through the bolt hole 11b. It is fixed by the first adhesive part (40a).

At this time, the nut 30b is fastened to the bolt 30 fitted into the coupling space 11 before forming the first adhesive portion 40a, so that the bolt 30 inserted into the head 10 does not shake and the position is fixed. .

The bolt 30 inserted into the coupling space 11 is not fixed and is shaken, and when the bolt 30 is shaken, the direction in which the shaft 20 is fitted is also changed.

In order to prevent this, as the fitting position of the bolt 30 is fixed by the nut 30b, the bolt 30 can be correctly fitted and fixed in the vertical direction.

When the bolt 30 is fixed in a state in which it protrudes in the coupling space 11 , an adhesive is poured into the coupling space 11 to form the second adhesive part 40b.

The amount of the adhesive poured to form the second adhesive part 40b is approximately enough to form the third adhesive part 40c by pushing the adhesive before hardening onto the locking part 20a when the shaft 20 is fully coupled. Pour as high as the A-A' line.

That is, after bonding, the adhesive is poured so that the height of the adhesive is higher than where the locking part 20 is located. will be.

The shaft 20 is completely inserted into the coupling space 11 of the head 10 before the adhesive of the second adhesive part 40b is cured, and the bolt 30 protruding in the coupling space 11 is caught when inserted. Make it protrude above the government 20 .

When the shaft 20 is inserted into the coupling space 11, the adhesive of the second adhesive part 40b, which is sufficiently poured into the gap between the bolt 30 and the through hole 20b, and the outer surface of the shaft 20, and the coupling space part (11) is pushed up between the small gaps between the inner walls to form the third adhesive portion 40c on the locking part 20a, and the adhesive is pushed up and filled between the outer surface of the shaft 20 and the inner wall of the coupling space 11. 4A bonding portion 40d is formed.

In this state, the head 10 and the shaft 20 are firmly coupled by fastening and tightening the nut 30a to the bolt 30 protruding above the locking part 20a and allowing the adhesive to cure naturally.

In the present invention, the upper end of the bolt 30 is processed into a conical shape as shown in the drawing so that the tip is pointed.

This has the advantage of shortening the assembly time by making the fastening of the nut 30a quick and easy.

However, even if the upper end of the bolt 30 is not necessarily processed into a conical shape, the fastening of the fastening is deteriorated and the fastening of the nut 30a is possible.

The nut 30a is fastened using a tool such as a box driver having a long handle.

In the present invention, by inserting a ring-shaped support member 50 of a metal material sandwiched on the outer surface of the shaft 20 in a slightly wider upper portion of the coupling space 11 together with the shaft 20 to be adhesively fixed, the shaft 20 of the coupling portion The configuration to support the from impact is the same as in the prior art, but in the present invention, the outer surface of the ring-shaped support member 50 is fitted with an outer cover 60 made of carbon and plastic non-ferrous metal material in the shape of a round frame, as shown in FIG. 2 , the support member (50) to cover the surrounding part. This is because when a gap or crack occurs between the support member 50 and the coupling space 11 into which the support member 50 is inserted due to a blow or the like, it does not look good on the outside. In addition, by designing and covering the cover 60 with various materials such as carbon, pearl, and metal of red color such as golden color, various patterns are designed on the outer surface to improve aesthetics as well as make the product look more luxurious as a whole, so that the merchantability is improved. It has the effect of raising it.

Both the support member 50 and the exterior cover 60 are fixed by adhesive or small screws.

As described above, according to the present invention, since the bolt 30 protruding from the bottom of the head 10 penetrates the locking part 20a integrally protruding in the shaft 20 and is fastened and fixed with the nut 30a, the head 10 ) and the coupling of the shaft 20 is made very firmly and between the second and third adhesive portions 40b and 40c and the through-holes 20b and the bolt 30 formed at the top and bottom of the locking portion 20a. The formed fifth adhesive portion 40e prevents relaxation and flow of the bolt 30 and the nut 30a, and the second adhesive portion 40b and the fourth adhesive portion formed between the shaft 20 and the coupling space 11 (40d) strongly supports the shaft 20 inside and outside the shaft 20 so as not to be shaken even by the impact caused by the blow. Since the head 10 does not flow or shake, there is an effect that an accurate price is always possible.

In addition, as the head 10, shaft 20, and copper plate 13 are fixed at once by bolts and nuts to form one body, it effectively catches the vibration of the shaft, and the distance increases and vibration is small, so there is little strain on the arm. The effect of hitting control is good.

In another embodiment of the present invention, as shown in Figs. 5, 6, and 7, in coupling the head 100 and the shaft 200, a separate fixing support 210 is inserted into the shaft 200 to be fixed. and the bolt 300 protruding from the bottom surface of the head 100 passes through the fixing support 210 when the shaft 200 is coupled, and then the nut 300a is coupled by a method of fastening.

5 is a cross-sectional configuration diagram of a state in which the head 100 and the shaft 200 are coupled, FIG. 6 is a cross-sectional configuration diagram of the shaft 200 before coupling, and FIG. 7 is a cross-sectional configuration diagram of the head 100 before coupling. The second embodiment will be described in detail with reference to the drawings.

As shown in FIG. 6 , in the second embodiment, the fixing support 210 is inserted into the lower end of the shaft 200 to be fixed.

In the center of the fixing support 210, there is a through hole 210a through which the bolt 300 passes, and an uneven portion 210b is formed on the outer surface, and the fixing support 210 is inserted into the lower end of the shaft 200. When inserting the fixing support 210 before insertion so that the adhesive is evenly applied to the entire upper and lower surfaces and the outer concavo-convex portion 210b of the fixing support 210 in the adhesive, it is then inserted.

When inserting the fixing support 210 , it is not necessary to insert the fixing support 210 to be tightly fitted to the inner wall of the shaft 200 .

The bottom surface of the fixing support 210 is the shaft ( 200), push it in so that it enters higher than the lower end.

When the adhesive is cured in this state, it is firmly adhesively fixed in the shaft 200 of the fixing support 210, and at the same time, the first adhesive portion 411 made of an adhesive between the concave-convex portion 210b and the inner wall of the fixing support 210 is formed. is formed to support the inner wall of the shaft 200 together with the uneven portion 210b.

The head 100 has a bolt 300 protruding into the coupling space 110 through a bolt hole 110b formed in the center of the bottom surface 110a of the coupling space 110 as shown in FIG. 7 , and the bolt head It is the same as in the first embodiment that the second adhesive part 412 blocks the bolt 300 to be fixed.

By pouring an adhesive into the coupling space part 110 from which the bolt 300 protrudes, the third adhesive part 413 is formed, and before the adhesive is cured, the shaft 200 having the fixing support 210 fixed therein is inserted into the head ( 100) is fully inserted into the coupling space 110 as shown in FIG. 6 and coupled.

When the shaft 200 is inserted into the coupling space 110 and coupled, the bolt 300 penetrates the through hole 210a of the fixing support 210 to protrude above the fixing support 210 , and at this time, the third adhesive part As the uncured adhesive of 413 is pushed up into the space between the bolt 300 and the through hole 210a and is piled up around the bolt 300 protruding on the upper surface of the fixing support 210, the fourth adhesive part 414 By fastening the nut 300a to the formed and protruding end of the bolt 300, the shaft 200 and the head 100 are firmly coupled by the coupling of the bolt 300 and the nut 300a.

When the shaft 200 is inserted into the coupling space 110 of the head 100, the adhesive of the third adhesive part 413 is not only toward the bolt through-hole 210a, but also the concave-convex part due to the pressure of the bottom surface of the fixing support 210. (210b) side and the outer surface of the shaft 200 and the coupling space 110 is also pushed up, both the inner and outer surfaces of the shaft 200 are adhesively fixed by the adhesive.

By this configuration, even in the second embodiment, the head 100 and the shaft 200 are more firmly coupled.

In particular, in the second embodiment, since the fixing support 210 is supported within the shaft 200, there is an effect of alleviating the shock and vibration applied to the shaft 200 when the head 100 hits the ball.

In Example 3, as shown in FIG. 8 , the nut 700a is fastened to the middle of the bolt 700 protruding from the bottom surface of the head 500 into the coupling space 510 , and the adhesive is applied to the coupling space 510 . Pour in to form the first adhesive part (800a) and fully insert the shaft 600 into the coupling space part 510 before the adhesive is cured, and then harden the adhesive, the first adhesive part (800a) where the nut (700a) is hardened Since it is fixed in the inside, there is no loosening or flow of the bolt 700 and the nut 700a, and the coupling between the head 500 and the shaft 600 is strong and the coupling of the head 500 and the shaft 600 is strong due to the engaging action of the nut 700a in the first adhesive 800a. 600) between the outer surface and the coupling space 510, the adhesive is pushed up and hardened to form the second adhesive portion 800b, so that the shaft 600 is double-bonded on the inner and outer surfaces, so that the coupling with the head 500 is strong and the shaft In the 600, the first adhesive portion 800a is strongly supported, so it has a strong effect on external shock and vibration.

9 a, b, c, and d show the manufacturing process of the shaft 20 in which the locking part 20a integrally protrudes therein in Example 1, and FIG. As a state diagram in which the molding rod is coupled, the second molding rod (B) is coupled to the end of the first molding rod (A).

At the left end of the first forming rod (A), the protruding rod (1) protrudes slightly longer, and the second forming rod (B) is formed with a groove (2) into which the protruding rod (1) is inserted, the groove (2) The depth of is shorter than the length of the protruding bar (1), so when the protruding bar (1) is inserted into the recess (2), as shown in FIG. 9a, a certain interval ( R) is formed.

The width of the gap (R) does not need to be specified, but preferably about 10 to 30 mm is good.

A groove (H) of a certain width and depth is formed between the ends of the first molding rod (A) and the second molding rod (B) by this interval, and the width of the groove (H) is determined by the interval (R) Therefore, it is the same as the gap (R) and the depth of the groove (H) determines the diameter of the through hole (20b) through which the bolt 30 passes. Considering that the inner diameter of the shaft 20 is about 15 mm, about 5 mm is suitable. The depth of the groove (H) is not limited to 5mm because it can be changed according to the thickness of the bolt 30 used.

The protruding rod 1 of the first molding rod (A) and the groove 2 of the second molding rod (B) are formed to be slightly inclined as shown in the figure to facilitate demolding after coupling.

That is, the diameter of the protruding rod (1) becomes narrower toward the end and the groove (2) becomes narrower toward the inside from the inlet.

The inclination of the protruding rod (1) has the same degree of inclination as the inclination of the groove (2).

The ends of the first and second forming rods (A) and (B) facing each other are preferably not angled as shown in the figure, but are curved to form a curved surface.

The manufacturing method of the shaft 20 according to the first embodiment of the present invention using the first and second forming rods (A) and (B) having the above configuration will be described for each process as follows.

<Step 1>

In the first process, as shown in Fig. 9a, the protruding rod 1 of the first molding rod (A) is inserted into the groove (2) of the second molding rod (B) to be coupled to each other, and the first and second moldings combined with each other The release agent is evenly applied to the outer surfaces of the rods (A) and (B) for easy demolding.

<Second process>

The carbon fiber (3) cut to a width of about 10 mm is repeatedly wound on the outer surface of the protruding rod (1) exposed in the groove (H) to completely fill the groove (H) so that the height is formed between the first molding rod (A) and the second molding rod (A). Make it coincide with the outer surface of the rod (B).

At this time, the end of the first forming rod (A) and the end (a) (b) of the second forming rod (B) are slightly inclined and the end is rounded to form a curved surface, and the portion is wider than 10 mm in width. When the carbon fiber (3) is wound and filled so that the outer surface coincides with the outer surface of the first forming rod (A) and the second forming rod (B), the part of the locking fixture (20a) to be demolded is reinforced and stronger. .

<3rd process>

After winding the carbon fiber (3) with a width of 9 to 10 mm to completely fill the groove (H), apply the carbon fiber (4) for the shaft (20) body to the entire outer surface of the first and second forming rods (A) (B) in about thickness. Wrap the carbon fiber (4) evenly by about 1 mm and wind the cellophane tape (5) on it to protect the resin from which the carbon fiber (4) is wound during the heat treatment process so as not to change in thickness while melting, and do not rough the outer surface of the shaft (20). It makes it smooth and makes it easy to grind.

<Step 4>

After winding the cellophane tape 5, it is heated to a temperature of about 130 to 140° C. for about 2 hours and heat-treated, so that all of the wound carbon fibers 3 and 4 and resin are melted and united, and then demolded after cooling.

Demoulding is performed by pulling the first and second forming rods (A) (B) to the left and right, and a release agent is applied, and each component of the first and second forming rods (A) (B) is slightly separated in a direction good for demolding. It is easily demolded due to its inclined configuration.

When the carbon fiber 4 is wound around the first and second forming rods (A) (B) for demolding, the carbon fiber 4 is not wound on both ends of the first and second forming rods (A) (B). It is natural to leave a certain width of margin for demolding.

<Step 5>

Remove the cellophane tape (5) wound on the outer surface of the carbon fiber (4) formed by cooling and demolding, make the surface even by polishing the surface, and cut both ends of the carbon fiber (4) by about 10 mm each to make uneven carbon fibers ( 4) has a smooth outer surface at both ends.

In order to cut both ends, when the carbon fiber (4) is wound, the length is adjusted to the extent that it is wound.

<Step 6>

The carbon fiber 4 completed by the fifth process is the shaft 20 of the present invention, and the locking part 20a formed by the groove (H) between the first and second forming rods (A) and (B) inside. ) is integrally protruded, and a through hole 20b is formed in the center thereof as shown in FIG. 3 by the protruding rod 1 of the first forming rod A.

The outer surface of the manufactured shaft is again coated with a transparent urethane resin (6) to make it shiny.

10 to 12 are views showing a coupling structure of the shaft 20 according to another embodiment of the present invention.

In FIG. 10 , a long head ring-shaped support member 50 supporting the shaft 20 is installed to extend from the top to the bottom of the shaft 20 so that the contact area with the head 10 is expanded.

As the support member 50 fitted inside the head 10 is installed to support the entire portion of the shaft 20 inserted into the head 10 , the rigidity of the shaft 20 can be increased, and the support member 50 ) increases the area in contact with the inside of the head 10 to prevent shaking of the shaft 20 .

In addition, as the contact area increases, the shaft 20 does not easily fall out even with frequent vibrations, thereby extending the life of the park golf club.

11 is a diagram illustrating the configuration of the fixing screw 70 installed inside the head 10 .

A fixing screw 70 installed through the support member 50 , the shaft 20 , and the locking fixing part 20a integrally formed with the shaft 20 may be installed inside the head 10 , and the fixing screw 70 may be installed. The shaft 20 and the head 10 can be firmly fixed as the shaft 20 is fixed to the head 10 through the 70 by the shaft 20 .

That is, as the large area of the locking part 20a formed integrally with the shaft 20 is firmly fixed to the head 10 by the fixing screw 70 , the shaft 20 does not easily come off the head 10 . It is not possible to reduce the shaking and vibration of the shaft 20, so there is an effect that can give a sense of stability when hitting the park golf club.

As a result, the blow is made accurately, and the flying distance is increased, and the lifespan of the product is also extended.

In addition, the lower end of the support member 50 may be formed on both sides of the support member 50 fitted inside the head 10 to prevent the support member 50 from falling out from the head 10 , and inside the head 10 , The locking protrusion 51 is caught to form a locking jaw 14 that restricts the shaft 20 from falling out to the upper part.

The locking protrusion 51 and the locking jaw 14 can prevent the support member 50 from falling out, so that the support member 50 and the shaft 20 can be firmly installed, and together with the fixing screw 70 . When installed, the fixing of the shaft 20 is made more firmly.

In this case, it is preferable to install the support member 50 from the lower part of the head 10 before installing the copper plate.

12 is a view showing the configuration of the fixing ring 80 installed on the lower portion of the support member (50).

At the lower portion of the support member 50, a locking protrusion 51 is formed to limit the support member 50 from falling to the upper portion by the locking protrusion 14 of the head 10, but due to frequent blows, the locking protrusion 51 is formed. ) may crack.

In order to prevent this, a fixing ring 80 in the form of enclosing the support member 50 may be installed between the stopping protrusion 51 and the stopping protrusion 14 , and the stopping protrusion 51 is stably installed by the fixing ring 80 . ) is caught on the locking jaw 14, the durability of the shaft 20 is improved.

The fixing ring 80 is installed to fit into the groove formed in the lower portion of the support member 50, and as the ring-shaped fixing ring 80 is installed to surround the entire lower end of the cylindrical support member 50, the support member By making the 50 stronger and reducing the vibration of the support member 50 , it is possible to reduce the vibration transmitted to the shaft 20 .

13 is another embodiment of the present invention, the lower portion of the support member 50 installed so as to surround the entire shaft 20 fitted to the head 10 is to be formed with a locking portion 52 of an inwardly bent shape. can

The bolt 30 fitted to the locking part 20a of the head 10 is integrally formed with the copper plate 13, and before the shaft 20 is inserted into the locking space 11, it is inserted by the nut 30b. In the process of fixing the bolt 30 , the support member 50 is prevented from falling out while the locking part 52 is pressed by the nut 30b.

That is, the bolt 30 is inserted through the hole formed by the locking part 52, and the copper plate 13, the bolt 30, and the support member are fixed by fastening the nut 30b to the inserted bolt 30. (50) can be firmly fixed to increase the durability of the park golf club.

14 to 16 are views showing a configuration for forming a center line on the upper portion of the head 10 of the present invention.

In general, the center line of the head 10 is formed on the upper surface of the head 10 of the park golf club, and serves to guide the user to check the center line and hit accurately through this.

In addition, a design is formed by laser engraving or attaching a film or the like together with a center line on the upper surface of the head 10 of the park golf club, and the center line and the designed pattern are exposed together on the upper surface.

However, when engraving the upper surface of the head 10, it is difficult to attach a laser engraving, a film, a picture, etc. to indicate the center line, and in this case, the marketability is deteriorated.

In the present invention, when a pattern is designed on the upper surface of the head 10 by carving or the like, the head 10 can be manufactured so that the center line of the head 10 can be displayed.

Referring to FIG. 14 , in the present invention, a head processing line 91 for processing the head 10 is formed on the upper surface of the head material 90 for manufacturing the head 10 , and with processing of the head 10 . A fitting groove 92 into which the center line member 93 is fitted is formed so that a center line is formed on the upper surface of the head 10 .

That is, the center line member 93 for forming the center line on the upper surface of the head 10 together with the formation of the head 10 in the process of manufacturing the head 10 by processing the head material 90 is configured.

The center line member 93 may be fixed to the fitting groove 92 formed in the head material 90 by an adhesive or the like, and when the head 10 is manufactured by processing the head material 90 , it is processed together to produce the head 10 . form the center line of

While engraving and processing the head 10 from the head material 90, as shown in FIG. 16, when the upper surface of the head 10 is processed by laser engraving or the like to form a design of various shapes, the center line member 93 is also engraved. Both the design and the center line engraved on the upper surface of the head 10 can be expressed.

Therefore, after forming the design by engraving the upper surface of the head 10, the manufacturing process of the head 10 is simplified as there is no need to separately laser process the center line or perform a film operation, and along with this, the upper surface of the head 10 is Since the design piece is not altered, the quality of the head 10 is excellent, thereby increasing the marketability.

As an embodiment of the present invention, the center line member 93 may use a material having a color different from that of the head 10, and may use ebony wood, resin, iron, non-ferrous metal, or the like.

Although specific embodiments have been described in the above description of the present invention, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be defined by the claims and equivalents to the claims.

(10)-- Head (11)-- Combination space
(11a)-- Bottom (11b)-- Bolt hole
(11c)-- Concave portion (12)-- Carbon face member
(13)-- Copper plate (14)-- Jamming jaw
(20)-- Shaft (20a)-- Locking part
(20b)-- through hole
(30)-- bolt (30a)(30b)--nut
(40a)-- First adhesive part (40b)-- Second adhesive part
(40c)-- Third adhesive part (40d)-- Fourth adhesive part
(50)-- Support member (51)-- Locking projection
(52)-- locking part
(60)-- Cover (70)-- Set screw
(80)-- Retaining ring
(90)-- Head material (91)-- Head processing line
(92)-- Fitting groove (93)-- Center line member
(100)--head (200)--shaft
(210)-- fixing support (210a)-- through hole
(210b)-- Exterior concavo-convex part
(300)-- bolt (300a)(300b)--nut
(411)-- the first adhesive part (412)-- the second adhesive part
(413)-- the third adhesive part (414)-- the fourth adhesive part
(500)--head (600)--shaft
(700)--bolt (700a)(700b)--nut

Claims (6)

In the park golf club consisting of a head and a shaft,
A coupling space 11 formed inside the head 10, and
A bolt 30 inserted from the bottom surface of the head 10 through the bolt hole 11b formed in the head 10 and protruding into the coupling space 11 in a state where the fitting depth is limited by the recess 11c, and;
A nut 30b so that the bolt 30 inserted into the coupling space 11 is not shaken and the position is fixed in the vertical direction;
The bolt 30 is formed integrally with the shaft 20 and the bolt 30 is fastened through the through hole 20b formed in the center so that the head 10 and the shaft 20 can be integrated and fixed by the bolt 30 . A fixing part (20a) and,
A nut 30a fastened to the bolt 30 so that the head 10 and the shaft 20 can be firmly adhered and fixed after the bolt 30 penetrates the locking part 20a and is fixed;
A support member ( 50) and
A cover 60 that covers the peripheral portion of the support member 50 so as not to damage the aesthetic feeling and is designed in various patterns to increase the marketability of the park golf club;
It consists of a support member 50, a shaft 20, and a fixing screw 70 installed through the locking fixing part 20a integrally formed with the shaft 20 inside the head 10,
At the lower end of the support member 50, locking projections 51 are formed on both sides to prevent the support member 50 fitted inside the head 10 from falling out of the head 10, and the locking projections (51) are formed inside the head 10. 51) is hooked and the support member 50 is formed with a locking sill 14 that limits the falling out of the upper part,
The lower portion of the support member 50 is provided between the locking projection 51 and the locking projection 14 in a state in which the support member 50 is formed so as not to fall out to the upper portion by the locking projection 51 and the locking projection 14 and is supported. A fixing ring 80 is installed to surround the entire lower end of the member 50 so that the locking protrusion 51 is firmly caught on the locking protrusion 14 so as to be solidly attached to the support member 50,
A center line member 93 is configured on the upper surface of the head 10 so that a center line is formed on the upper surface of the head 10 together with the processing of the head 10 in the process of manufacturing the head 10 by processing the head material. Combination structure of park golf club with excellent durability of head and shaft combination.
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