Head Speed ​​Adjustable Golf Practice Club

Abstract

This golf practice club offers improved precision in setting swing speed, easy operation for setting swing speed, and proactively prevents malfunctions caused by user inexperience. [Solution] The head speed adjustment golf practice club includes: a first main body attached to one end of a golf swing practice shaft, extending downward, and formed in a manner in which a sliding groove extending vertically passes through both sides; a second main body with a hollow cylinder structure that is fixed to the lower end of the first main body by a pin after being bolted, and extending downward; a rotation adjustment part which is positioned between the first and second main body parts and is mounted on the outer circumferential surface of the first main body so as to be able to rotate in a fixed position, and has a screw thread structure formed on its inner surface that engages with the outer circumferential surface of the position change part; and a position change part which is fixed inside the sliding groove of the first main body and enters or exits from inside the first main body by the rotation adjustment part.

Description

Technical Field

[0005]

[0001] The present invention relates to a golf practice club, and more particularly to a head speed adjustment golf practice club capable of enhancing the setting precision of swing speed.

Background Art

[0002] Golf is a sport in which the outcome is determined by the number of strokes required to hit a golf ball on a course with a club and put it into a hole. When an impact is accurately applied to a golf ball at a desired position in a preferred golf swing posture, the golf ball can fly far in a desired direction.

[0003] A golf swing is performed in a series of continuous postures including an address posture, a backswing, a downswing, an impact, and a follow-through. When a golf swing makes good use of the centrifugal force of the club (with the golfer) during the backswing, downswing, impact, and follow-through, the speed of the club can be increased and the impact on the golf ball can be enhanced. A higher club impact at the impact point causes the golf ball to fly even farther.

[0004] A golf practice machine is used to improve the swing speed and impact speed of a golf swing. A golfer can use a golf practice machine to improve the speeds of the backswing, downswing, impact, and follow-through or to recognize the impact point.

[0005] <00000!18>The swing practice device of Patent Document 1 is a typical existing golf practice machine capable of improving the swing speed and recognizing the impact point. As can be seen from FIG. 1 ((a) shows a perspective view of an existing golf practice machine, and (b) shows an exploded perspective view), the swing practice device of Patent Document 1 (hereinafter referred to as "existing golf practice machine") includes a shaft 10, a grip 11, and a head unit 20. The head unit 20 includes a first body 21 and a second body 23 for giving a sense of weight during a swing.

[0006] The head unit 20 includes a magnet 311, a movable body 237, an adjustment ring 30 and an adjustment nut 40 for adjusting the distance between the magnet and the movable body. When the centrifugal force due to the swing speed is greater than the magnetic force between the magnet and the movable body, the movable body separates from the magnet and strikes the bottom surface of the tip, generating a striking sound.

[0007] The golfer adjusts the position of the adjustment ring 30 by rotating the adjustment nut 40, thereby adjusting the distance between the moving body and the magnet. Existing golf training machines reduce the distance between the moving body and the magnet by rotating the adjustment nut in one direction, and the distance is minimized by the maximum rotational distance of the adjustment nut. Existing golf training machines also allow the distance between the moving body and the magnet to be increased by rotating the adjustment nut in the opposite direction, and the distance is maximized by the maximum rotational distance of the adjustment nut.

[0008] Existing golf training machines are configured such that a slide groove 211B is formed between two guide walls in the first body, and an adjustment ring protrudes from the slide groove. The outer threads of the adjustment ring and the inner threads of the adjustment nut engage, and when the adjustment nut rotates in the forward direction, the adjustment ring moves forward from the slide groove, increasing the magnetic force with the moving body, and when it rotates in the reverse direction, the adjustment ring moves backward from the slide groove, decreasing the magnetic force with the moving body.

[0009] Existing golf training machines, which include an adjustment nut 40 in the head unit 20 and adjust the speed by moving the adjustment ring 30 back and forth through the rotation of the adjustment nut, suffer from various problems due to their internal structure.

[0010] First, the first body and the second body have corresponding screw threads 211A and 231A, which interlock to form the outer shape of the head unit. During manufacturing (assembly), adhesive is applied to the screw threads to fix the first body and the second body together and make separation impossible. However, since the adhesive can flow into the first body through the slide groove, the amount of adhesive applied cannot be increased significantly, requiring careful handling during the process. This can lead to internal moving parts being exposed to the adhesive through the slide groove and sticking to the body, causing various defects such as separation due to internal or external impacts or handling.

[0011] Furthermore, the adjustment nut and adjustment ring adjust the set swing speed at the moment of impact by adjusting their front-to-back position through the engagement of their respective threads 331 and 41. Since the adjustment nut and adjustment ring are generally made of plastic, tolerances in the plastic and pressure applied during operation can reduce the precision of the swing speed adjustment.

[0012] Furthermore, the adjustment nut is designed to rotate within the maximum rotational distance designed by the engagement of the threads with the adjustment ring in the forward direction, and also within the maximum rotational distance designed in the reverse direction. Due to the user's lack of skill in operating existing golf training machines, the user may be able to forcefully rotate the adjustment nut further in a specific direction despite the limit of the maximum rotational distance, which can cause the head unit to disassemble (separation of the first and second bodies).

[0013] As explained above, there is a need for a swing speed training device that can improve, enhance, or resolve the various problems that occur with existing golf training devices that control swing speed using a head unit.

[0014] Furthermore, with conventional head units, there is a high possibility that the screw threads will twist during the disassembly and assembly process. This means that the head unit may be damaged by inexperienced users, and there is a risk of accidents occurring if swing practice is performed with the unit not properly assembled.

[0015] Therefore, the reality is that we need a technology that can solve the problems of the conventional technology mentioned above. [Prior art documents] [Patent Documents]

[0016] [Patent Document 1] Republic of Korea Registered Patent Publication No. 10-1507569 (Registration Date: 2015.04.08) [Overview of the project] [Problems that the invention aims to solve]

[0017] The objective of the present invention is to provide a head speed adjustment golf practice club that includes a configuration that can improve the precision of setting the swing speed, allows for easy setting of the swing speed, and prevents malfunctions caused by the user's lack of skill. [Means for solving the problem]

[0018] A head speed adjustment golf practice club according to one aspect of the present invention to achieve such objectives may include: a first main body attached to one end of a golf swing practice shaft, having a structure formed in which a sliding groove extending downward by a predetermined length and extending vertically by a predetermined length penetrates both sides; a second main body with a hollow cylinder structure fixed to the lower end of the first main body by a pin after being bolted, and extending downward by a predetermined length; a rotation adjustment part disposed between the first and second main body parts, having a ring structure attached to the outer circumferential surface of the first main body in a manner that allows for stationary rotation, and having a screw thread structure formed on its inner surface that engages with the outer circumferential surface of the position change part; and a position change part fixed inside the sliding groove of the first main body, having a structure that enters or exits from the inside of the first main body to a predetermined depth by the rotation adjustment part.

[0019] In one embodiment of the present invention, the first main body may include: a shaft fastening portion having a structure that is fastened to one end of a golf swing practice shaft and extending downward by a predetermined length; a lower extension portion extending downward by a predetermined length from the lower surface of the shaft fastening portion, with a rotation stopper elastically fastened to the upper surface on one side and a sliding groove formed in the central part of one side that penetrates both sides; a first screw fastening portion having a structure that is screw fastened to the inner surface of the second main body with a predetermined width formed at the lower end of the outer circumferential surface of the lower extension portion; a second screw fastening portion having a structure that is screw fastened to the inner surface of the second main body with a predetermined distance from the first screw fastening portion; and a pin fastening groove formed between the first fastening portion and the second screw fastening portion.

[0020] In one embodiment of the present invention, the second main body is a hollow cylinder structure extended downward by a predetermined length, with a vent hole formed in the center of the lower surface, creating a space inside the hollow structure through which a movable weight can move, and a built-in elastic member that elastically supports the lower surface of the movable weight as it detaches from the magnetic path and falls; a cylinder binding portion formed integrally with the upper end of the lower extension cylinder and bolted to the second screw binding portion and the first screw binding portion; a step-forming portion formed continuously along the outer peripheral surface of the upper end of the cylinder binding portion and in surface contact with the inner surface of the lower end of the rotation adjustment portion, and a fixed step-forming portion for the stationary rotational movement of the rotation adjustment portion; and a pin insertion opening formed on one side of the upper part of the cylinder binding portion, into which a pin can be inserted in the direction of the pin fixing groove.

[0021] In one embodiment of the present invention, the rotation adjustment section may include: a first rotating ring having a structure that allows stationary rotation along the outer circumferential surface to which the rotation stopper fitting of the lower extension is elastically fastened, and grooves that engage with the rotation stopper fitting are continuously formed along the inner circumferential surface at regular angles; a second rotating ring having a structure that is integrally formed at the lower end of the first rotating ring, extends downward by a predetermined length, and has a screw thread structure formed on its inner surface that engages with the outer circumferential surface of the position change section; and a sliding rotating ring having a structure that is integrally formed at the lower end of the second rotating ring, and slides in contact with the fixed step forming section in a manner that makes surface contact.

[0022] In one embodiment of the present invention, the position-changing portion may include: a variable housing portion having a structure that is inserted into the sliding groove and can be slid to change its position in the vertical direction, and having screw threads formed at both ends for screw fastening with a second rotating ring; a sliding member having a cylindrical structure that slides into the hollow structure of the lower extension portion to a predetermined depth, and having through fastening openings formed on both upper sides for inserting and fixing the variable housing portion; and a magnet having a cylindrical structure attached to one end of the sliding member, corresponding to the inside of the hollow structure of the lower extension portion, and having a structure that magnetically attaches to the upper surface of the movable weight.

Advantages of the Invention

[0023] As described above, according to the head speed adjustment golf practice club of the present invention, by including the first main body part, the second main body part, the rotation adjustment part, and the position change part with a specific structure, the isolation distance between the magnet and the moving weight can be precisely adjusted, and the timing at which the moving weight is separated from the magnet can be changed according to the speed of the swing operation. Therefore, the setting precision of the swing speed can be improved, the swing speed can be set with a simple operation, and a configuration that can prevent defects resulting from the user's inexperienced operation in advance can be provided, thereby providing a head speed adjustment golf practice club.

Brief Description of the Drawings

[0024] [Figure 1] It is a perspective view and an exploded perspective view showing a golf swing practice machine according to the prior art. [Figure 2] It is a perspective view showing a head speed adjustment golf practice club according to an embodiment of the present invention. [Figure 3] It is a front view showing the head speed adjustment golf practice club shown in FIG. 2. [Figure 4] It is a cross-sectional view taken along the line A - A' of FIG. 3. [Figure 5] It is a front view showing the first main body part of a head speed adjustment golf practice club according to an embodiment of the present invention. [Figure 6] It is a cross-sectional view taken along the line B - B' of FIG. 5. [Figure 7] It is an exploded assembly view showing a head speed adjustment golf practice club according to an embodiment of the present invention. [Figure 8] It is an exploded assembly view showing a state in which a partial configuration of the head speed adjustment golf practice club shown in FIG. 7 is assembled. [Figure 9] It is an exploded assembly view showing a state in which the second main body part is finally assembled in a state where a partial configuration of the head speed adjustment golf practice club shown in FIG. 8 is assembled. [Figure 10]Figure 9 is a perspective view showing how the second main body of the head speed adjustment golf practice club is assembled and then secured using a pin. [Modes for carrying out the invention]

[0025] Preferred embodiments of the present invention will be described in detail below with reference to the drawings. Prior to that, the terms and words used herein and in the claims should not be interpreted in a manner limited to their ordinary or dictionary meanings, but rather in a manner and concept consistent with the technical idea of ​​the present invention.

[0026] Throughout this specification, when we say that one component is located "on" another component, this includes not only cases where one component is in contact with another component, but also cases where another component exists between the two components. Throughout this specification, when we say that a part "includes" other components, this means, unless otherwise stated, that it may include other components rather than excluding them.

[0027] Figure 2 shows a perspective view of a head speed adjustment golf practice club according to one embodiment of the present invention, Figure 3 shows a front view of the head speed adjustment golf practice club shown in Figure 2, and Figure 4 shows a cross-sectional view taken along the line A-A' in Figure 3.

[0028] Referring to these drawings, the head speed adjustment golf practice club 100 according to this embodiment is equipped with a first main body 110, a second main body 120, a rotation adjustment unit 130, and a position change unit 140 of a specific structure, thereby increasing the precision of setting the swing speed, allowing the swing speed to be set with easy operation, and providing a head speed adjustment golf practice club with a configuration that prevents defects caused by the user's lack of skill.

[0029] In the following, each component constituting the head speed adjustment golf practice club 100 according to this embodiment will be described in detail with reference to the drawings.

[0030] Figure 5 shows a front view of the first main body of a head speed adjustment golf practice club according to one embodiment of the present invention, Figure 6 shows a cross-sectional view taken along the line B-B' in Figure 5, and Figure 7 shows an exploded assembly view of a head speed adjustment golf practice club according to one embodiment of the present invention.

[0031] Furthermore, Figure 8 shows an exploded assembly diagram of some of the components of the head speed adjustment golf club shown in Figure 7, Figure 9 shows an exploded assembly diagram of the second main body being assembled last with some of the components of the head speed adjustment golf practice club shown in Figure 8 assembled, and Figure 10 shows a perspective view of the second main body of the head speed adjustment golf practice club shown in Figure 9 being fixed using a pin after assembly.

[0032] Referring to Figures 2 to 10, the first main body 110 in this embodiment is attached to one end of the golf swing practice shaft 10 and is formed in such a way that a sliding groove G1, which extends downward by a predetermined length and extends vertically by a predetermined length, penetrates through both sides.

[0033] Specifically, the first main body portion 110 may include a shaft fastening portion 111 of a specific structure, a downward extension portion 112, a first screw fastening portion 114, a second screw fastening portion 115, and a pin fastening groove G2.

[0034] The shaft fastening portion 111 of the first main body is formed to fasten to one end of the golf swing practice shaft 10 and extends downward by a predetermined length. The lower extension portion 112 extends downward by a predetermined length from the lower surface of the shaft fastening portion 111, has a rotation stopper fitting 113 elastically fastened to the upper surface on one side, and has a sliding groove G1 formed in the center of one side that penetrates both sides. The first screw fastening portion 114 is formed at the lower end of the outer circumferential surface of the lower extension portion 112 for a predetermined width and is screw fastened to the inner surface of the second main body portion 120. The second screw fastening portion 115 is formed at the lower end of the outer circumferential surface of the lower extension portion 112 for a predetermined width and is screw fastened to the inner surface of the second main body portion 120 at a predetermined distance from the first screw fastening portion 114. Furthermore, the pin fastening groove G2 is a structure formed between the first screw fastening portion 114 and the second screw fastening portion 115.

[0035] In this embodiment, the second main body portion 120 is a hollow cylinder structure that is bolted to the lower end of the first main body portion 110 and then fixed with a pin P, and is extended downward by a predetermined length.

[0036] Specifically, the second main body 120 may include a downward extension cylinder 121 of a specific structure, a cylinder binding portion 124, a secure step forming portion 125, and a pin insertion port 126.

[0037] The lower extension cylinder 121 of the second main body 120 is a hollow cylinder structure that extends downward by a predetermined length, with a vent hole 122 formed in the center of the lower surface, creating a space inside the hollow structure through which the movable weight 150 can move, and an elastic member 123 is built in to elastically support the lower surface of the movable weight 150 as it detaches from the magnet 145 and falls. The cylinder binding part 124 is formed integrally with the upper end of the lower extension cylinder 121 and is bolted to the second screw binding part 115 and the first screw binding part 114. The fixed step forming part 125 is formed continuously along the outer peripheral surface of the upper end of the cylinder binding part 124 and is a terminal structure that contacts the inner surface of the lower end of the rotation adjustment part 130 in a surface contact manner, and the rotation adjustment part 130 rotates in a stationary position. Furthermore, the pin insertion opening 126 is formed on one upper side of the cylinder binding portion 124, and is structured to allow the insertion of the pin P in the direction of the pin fixing groove G2.

[0038] The rotation adjustment unit 130 in this embodiment is positioned between the first main body 110 and the second main body 120, and is a ring structure mounted on the outer circumferential surface of the first main body 110 in a manner that allows for stationary rotation. The inner surface has a screw thread structure that engages with the outer circumferential surface of the position change unit 140.

[0039] Specifically, the rotation adjustment unit 130 may include a first rotation ring 131, a second rotation ring 132, and a sliding rotation ring 133 of a specific structure.

[0040] The first rotating ring 131 of the rotation adjustment section 130 is mounted in a structure that allows it to rotate in a fixed position along the outer surface to which the rotation stopper fitting 113 of the lower extension section 112 is elastically fastened, and grooves that engage with the rotation stopper fitting 113 are continuously formed along the inner surface at regular angles. The second rotating ring 132 is formed integrally with the lower end of the first rotating ring 131, extends downward by a predetermined length, and has a screw thread structure formed on its inner surface that engages with the outer surface of the position change section 140. The sliding rotating ring 133 is also formed integrally with the lower end of the second rotating ring 132 and is a ring structure that slides in contact with the fixed step forming section 125 in a form that makes surface contact.

[0041] In this embodiment, the position-changing section 140 is fixed inside the sliding groove G1 of the first main body section 110, and is structured to either enter or exit from the inside of the first main body section 110 to a predetermined depth by the rotation adjustment section 130.

[0042] Specifically, the position-changing section 140 may include a variable housing section 141 of a specific structure, a sliding member 142, and a magnet 145.

[0043] The variable housing portion 141 of the position change portion 140 is a structure that can be inserted into the sliding groove G1 and slide to change its position vertically, and has screw threads formed at both ends for screw fastening to the second rotating ring 132. The sliding member 142 is a cylindrical structure that slides into the hollow structure of the lower extension portion 112 to a predetermined depth, and has through fastening ports 143 formed on both sides of the upper part for inserting and fixing the variable housing portion 141. The magnet 145 is attached to one end of the sliding member 142 and is a cylindrical structure corresponding to the inside of the hollow structure of the lower extension portion 112, and has a structure that magnetically attaches to the upper surface of the movable weight 150.

[0044] As described above, the head speed adjustment golf practice club of the present invention includes a first main body 110, a second main body 120, a rotation adjustment unit 130, and a position change unit 140 of a specific structure, which allows for precise adjustment of the separation distance between the magnet and the moving weight, thereby changing the timing at which the moving weight separates from the magnet according to the speed of the swing motion. This improves the precision of setting the swing speed, allows for easy setting of the swing speed, and prevents malfunctions caused by the user's lack of skill.

[0045] The above detailed description of the present invention has described only specific embodiments thereof. However, it should be understood that the present invention is not limited by the specific forms mentioned in the detailed description, but rather should be understood to include all variations, equivalents, and substitutes that fall within the spirit and scope of the invention as defined by the appended claims.

[0046] In other words, the present invention is not limited to the specific embodiments and descriptions described above, nor does it deviate from the gist of the invention as claimed in the claims. Anyone with ordinary skill in the art to which the present invention belongs can carry out various modifications, and such modifications fall within the scope of protection of the present invention. [Explanation of symbols]

[0047] 100: Head Speed ​​Adjustable Golf Practice Club 110: First main body 111: Shaft binding section 112:Downward extension 113: Rotation stopper 114: First screw fastening section 115: Second screw fastening section G1: Sliding groove G2: Pin-safe groove 120: Second main body 121: Downward extension cylinder 122: Venthole 123: Elastic member 124: Cylinder binding section 125: Secure step formation section 126: Pin insertion slot P: Pin 130: Rotation adjustment part 131: First Rotation Ring 132: Second Rotation Ring 133: Slide Rotating Ring 140: Position change section 141: Variable storage unit 142: Sliding component 143: Through-hole fastening 145: Magnet 150: Moving weight 10: Shaft

Claims

[Claim 1] A first main body portion 110 is attached to one end of a golf swing practice shaft 10, and has a structure formed such that a sliding groove G1 extends downward by a predetermined length and extends vertically by a predetermined length, passing through both sides; A second main body portion 120, which is a hollow cylinder structure, is fixed to the lower end of the first main body portion 110 by a pin P after being bolted, and is extended downward by a predetermined length; A rotation adjustment part 130 is a ring structure positioned between the first main body portion 110 and the second main body portion 120, mounted on the outer circumferential surface of the first main body portion 110 in a manner that allows for stationary rotation, and has a screw thread structure formed on its inner surface that engages with the outer circumferential surface of the position change portion 140; and A position-changing section 140 is fixed inside the sliding groove G1 of the first main body 110 and is structured to either enter or exit from the inside of the first main body 110 to a predetermined depth by the rotation adjustment section 130; Includes, The first main body portion 110 is, A shaft fastening portion 111 is formed to fasten to one end of a golf swing practice shaft 10, and extends downward by a predetermined length; A downward extension portion 112 extends downward from the lower surface of the shaft binding portion 111 by a predetermined length, with a rotation-preventing fitting 113 elastically fastened to the upper surface on one side, and a sliding groove G1 having a structure that penetrates both sides in the central part of one side; A first screw fastening portion 114 is formed to a predetermined width at the lower end of the outer circumferential surface of the lower extension portion 112 and is structured to be screw-fastened to the inner surface of the second main body portion 120; A second screw fastening portion 115 is formed at the lower end of the outer circumferential surface of the lower extension portion 112 to a predetermined width, and is structured to be screw-fastened to the inner surface of the second main body portion 120 at a predetermined distance from the first screw fastening portion 114; and A pin fastening groove G2 formed between the first screw fastening portion 114 and the second screw fastening portion 115; Includes, The second main body portion 120 is, A downward-extending cylinder 121 has a hollow cylinder structure that extends downward by a predetermined length, with a vent hole 122 formed in the center of the lower surface, creating a space inside the hollow structure through which a movable weight 150 can move, and an elastic member 123 built in to elastically support the lower surface of the movable weight 150 as it detaches from the magnet 145 and falls; A cylinder binding portion 124 is formed integrally with the upper end of the downward extension cylinder 121 and is bolted to the second threaded binding portion 115 and the first threaded binding portion 114; A secure step-forming portion 125 is formed continuously along the outer circumferential surface of the upper end of the cylinder binding portion 124 and is in surface contact with the inner surface of the lower end of the rotation adjustment portion 130, and the rotation adjustment portion 130 is in a structure that allows for stationary rotational movement; and A pin insertion opening 126 is formed on one upper side of the cylinder binding portion 124 and has a structure that allows a pin P to be inserted in the direction of the pin fixing groove G2; Includes, The rotation adjustment unit 130 is The first rotating ring 131 is mounted in such a way that it can rotate in a fixed position along the outer surface to which the rotation-stopping fitting 113 of the lower extension 112 is elastically fastened, and grooves that engage with the rotation-stopping fitting 113 are continuously formed along the inner surface at regular angles; A second rotating ring 132 is formed integrally with the lower end of the first rotating ring 131, extends downward by a predetermined length, and has a screw thread structure formed on its inner surface that engages with the outer surface of the position-changing portion 140; and A sliding rotating ring 133 is formed integrally with the lower end of the second rotating ring 132 and has a ring structure that makes surface contact with the anchoring step forming portion 125 and performs a sliding motion; Includes, The position changing unit 140 is A variable housing section 141 is inserted into the sliding groove G1 and has a structure that allows its sliding position to be changed in the vertical direction, and has screw threads formed at both ends for screw fastening to the second rotating ring 132; A sliding member 142 having a cylindrical structure that slides into the hollow structure of the lower extension 112 to a predetermined depth, and having through-fastening openings 143 formed on both upper sides for inserting and fixing variable housing sections 141; and A magnet 145 is attached to one end of the sliding member 142, has a cylindrical structure corresponding to the inside of the hollow structure of the lower extension 112, and has a structure that magnetically attaches to the upper surface of the movable weight 150; A golf practice club with adjustable head speed, characterized by including the following features.

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