Head speed adjustable golf practice club

Abstract

To provide a head speed adjustable golf practice club capable of increasing the precision of swing speed setting, allowing the swing speed to be set by a simple operation, and preventing defects due to inexperienced operation by a user. [Solution] The head speed adjusting golf practice club includes a first body portion attached to one end of a golf swing practice shaft, extending downward, and having a structure in which sliding grooves extending in the vertical direction penetrate on both sides; a second body portion having a hollow cylinder structure extending downward, which is fixed to the lower end of the first body portion by a pin after being bolted; a rotation adjustment portion disposed between the first and second body portions, having a ring structure attached to the outer surface of the first body portion so as to be capable of fixed rotation, and having a thread structure on its inner surface that engages with the outer surface of the position change portion; and a position change portion seated inside the sliding groove of the first body portion, which enters or exits from the inside of the first body portion by the rotation adjustment portion.

Description

[Technical Field]

[0001] The present invention relates to a golf practice club, and more particularly to a golf practice club with adjustable head speed that can improve the accuracy of swing speed setting. [Background technology]

[0002] Golf is a sport in which the winner 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. If you have a good golf swing posture and make accurate impact with the golf ball at the desired position, the golf ball will fly far and in the desired direction.

[0003] A golf swing is performed in a series of consecutive postures from the address position: backswing, downswing, impact, and follow-through. A golf swing makes good use of the centrifugal force of the golfer and the club through the backswing, downswing, impact, and follow-through, which increases the club speed and increases the impact on the golf ball. A high club impact at the impact point makes the golf ball fly farther.

[0004] Golf training devices are used to improve the swing speed and impact speed of a golf swing. Golfers can use the golf training device to improve the speed of their backswing, downswing, impact, and follow-through swing, or to recognize the impact point.

[0005] The swing training device of Patent Document 1 is a typical existing golf training device that can improve swing speed and recognize the impact point. As can be seen from Fig. 1 ((a) shows a perspective view of the existing golf training device, and (b) shows an exploded perspective view), the swing training device of Patent Document 1 (hereinafter referred to as the "existing golf training device") 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 that provide a sense of weight during a swing.

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

[0007] A golfer rotates the adjustment nut 40 to adjust the position of the adjustment ring 30 up or down, thereby adjusting the distance between the moving body and the magnet. In existing golf training machines, the adjustment nut is rotated in one direction to decrease the distance between the moving body and the magnet, and the distance between the moving body and the magnet is minimized according to the maximum rotation distance of the adjustment nut. In addition, in existing golf training machines, the adjustment nut can be rotated in the opposite direction to increase the distance between the moving body and the magnet, and the distance between the moving body and the magnet is maximized according to the maximum rotation distance of the adjustment nut.

[0008] In the existing golf training machine, a slide groove 211B is formed between two guide walls in the first body, an adjustment ring is positioned protruding into the slide groove, and the outer thread of the adjustment ring engages with the inner thread of the adjustment nut. When the adjustment nut is rotated in the forward direction, the adjustment ring advances from the slide groove, increasing the magnetic force with the moving body, and when the adjustment nut is rotated in the reverse direction, the adjustment ring moves backward from the slide groove, weakening the magnetic force with the moving body.

[0009] The existing golf training machine, which includes an adjustment nut 40 in the head unit 20 and adjusts the speed by moving the adjustment ring 30 back and forth by rotating the adjustment nut, has various problems due to its internal structure.

[0010] First, the first body and the second body have corresponding threads 211A and 231A and are engaged with each other to form the outer shape of the head unit. During manufacturing (assembly), adhesive is applied to the threads to fix the first body and the second body and make them inseparable. However, since the adhesive can flow into the inside through the slide groove of the first body, care must be taken not to apply too much adhesive and the work must be done carefully. In addition, internal moving parts are exposed to the adhesive through the slide groove and stick to the body, causing various defects such as separation due to internal or external impact or operation.

[0011] In addition, the adjustment nut and the adjustment ring adjust the set swing speed at the moment of impact by adjusting their front-to-back positions through the engagement of their threads 331 and 41. Since the adjustment nut and the adjustment ring generally have threads made of plastic, the tolerance of the plastic and pressure caused by operation can occur, resulting in a decrease in the precision of the swing speed setting adjustment.

[0012] In addition, the adjustment nut can rotate within the maximum designed rotation distance in the forward direction due to the thread engagement with the adjustment ring, and can also rotate within the maximum designed rotation distance in the reverse direction. Due to inexperience in operating existing golf training machines, users may forcefully rotate the adjustment nut in a specific direction despite the limit of the maximum rotation distance, which can cause the head unit to disassemble (separate the first and second bodies).

[0013] As described above, there is a need for a swing speed training device that can improve, enhance, or eliminate the various problems that arise in existing golf training devices that control swing speed using a head unit.

[0014] Furthermore, in the case of head units made using conventional technology, there is a high possibility that the threads may become twisted during the disassembly and assembly process, which can lead to damage by inexperienced users, and there is a risk of a safety accident occurring if swing practice is performed when the head unit is not assembled stably.

[0015] Therefore, there is a need for a technology that can solve the problems of the prior art mentioned above. [Prior art documents] [Patent documents]

[0016] [Patent Document 1] Republic of Korea Patent Publication No. 10-1507569 (Registration Date: 2015.04.08) Summary of the Invention [Problem to be solved by the invention]

[0017] The object of the present invention is to provide a head speed adjustable golf practice club including a configuration that can increase the precision of swing speed setting, allow swing speed to be set with easy operation, and prevent defects due to inexperienced user operation in advance. [Means for solving the problem]

[0018] To achieve this object, one aspect of the present invention provides a head speed adjustable golf practice club that may include: a first body portion that is attached to one end of a golf swing practice shaft, extends downward by a predetermined length, and has a structure in which sliding grooves that extend vertically by a predetermined length and penetrate on both sides; a second body portion that has a hollow cylindrical structure that is fixed to the lower end of the first body portion by a pin after being bolted; a rotation adjusting portion that is disposed between the first and second body portions and has a ring structure that is attached to the outer circumferential surface of the first body portion in a structure that allows it to rotate at a fixed position, and has a thread structure on its inner surface that engages with the outer circumferential surface of the position changing portion; and a position changing portion that is seated inside the sliding groove of the first body portion and is configured to advance or eject a predetermined depth from inside the first body portion according to the rotation adjusting portion.

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

[0020] In one embodiment of the present invention, the second body portion may include a hollow cylinder structure extended downward by a predetermined length, a vent hole formed in the center of the lower surface thereof, forming a space within the hollow structure through which the movable weight can move, and a built-in elastic member that elastically supports the lower surface of the movable weight when it falls after detaching from the magnet path; a cylinder binding portion formed as an integral structure at the upper end of the downward extension cylinder and configured to be bolted to the second screw binding portion and the first screw binding portion; a seating step forming portion formed continuously along the outer periphery of the upper end of the cylinder binding portion and configured as a step structure that makes surface contact with the inner surface of the lower end of the rotation adjusting portion, thereby allowing the rotation adjusting portion to rotate in a stationary manner; and a pin insertion port formed on one side of the upper part of the cylinder binding portion and configured to allow a pin to be inserted in the direction of the pin seating groove.

[0021] In one embodiment of the present invention, the rotation adjusting part may include: a first rotating ring, the first rotating ring having grooves that engage with the rotation stopping fittings of the downward extension part and are mounted on the outer peripheral surface thereof to allow fixed rotation along the elastically fastened surface thereof, and the grooves are formed continuously at regular intervals along the inner peripheral surface thereof; a second rotating ring, the second rotating ring being formed on the lower end of the first rotating ring as an integral structure, extending downward by a predetermined length, and having a thread structure on the inner surface thereof that engages with the outer peripheral surface of the position changing part; and a sliding rotating ring, the second rotating ring being formed on the lower end of the second rotating ring as an integral structure, and being in surface contact with the seating step-forming part and sliding.

[0022] In one embodiment of the present invention, the position changer may include: a variable receiving portion that is inserted into the sliding groove to change its sliding position in the up and down direction and has threads on both ends to be screwed to the second rotating ring; a sliding member that is cylindrical and slides into the hollow structure of the downward extension portion to a predetermined depth and has through-holes on both sides of the upper part for inserting and fixing the variable receiving portion; and a magnet that is attached to one end of the sliding member and has a cylindrical structure corresponding to the interior of the hollow structure of the downward extension portion and is configured to magnetically attach to the upper surface of the movable weight. [Effects of the Invention]

[0023] As described above, the head speed adjustable golf practice club of the present invention is provided with a first main body portion, a second main body portion, a rotation adjustment portion, and a position change portion of specific structures, which allows the separation distance between the magnet and the movable weight to be precisely adjusted and the timing at which the movable weight separates from the magnet to be changed depending on the speed of the swing motion, thereby increasing the precision of swing speed setting, allowing the swing speed to be set with easy operation, and providing a head speed adjustable golf practice club with a configuration that can prevent defects due to the user's inexperience in operation. [Brief explanation of the drawings]

[0024] [Figure 1] 1A and 1B are a perspective view and an exploded perspective view showing a golf swing training device according to the prior art; [Figure 2] 1 is a perspective view showing a golf practice club with adjustable head speed according to an embodiment of the present invention; [Figure 3] 3 is a front view showing the head speed adjustable golf practice club shown in FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA' in FIG. [Figure 5] 1 is a front view showing a first body portion of a head speed adjustable golf practice club according to one embodiment of the present invention. [Figure 6] FIG. 6 is a cross-sectional view taken along line BB' in FIG. 5. [Figure 7] 1 is an exploded view showing a head speed adjustable golf practice club according to one embodiment of the present invention; [Figure 8] 8 is an exploded view showing a partially assembled configuration of the head speed adjustable golf practice club shown in FIG. 7. FIG. [Figure 9] 9 is an exploded view showing how the second main body portion is finally assembled in a state where a portion of the head speed adjustable golf practice club shown in FIG. 8 is assembled. [Figure 10]10 is a perspective view showing how the second body portion of the head speed adjustable golf practice club shown in FIG. 9 is fixed using a pin after being assembled. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to that, the terms and words used in the specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted as meanings and concepts that correspond to the technical ideas of the present invention.

[0026] Throughout this specification, when a member is said to be "located on" another member, this includes not only when the member is in contact with the other member, but also when there is another member between the two members. Throughout this specification, when a part is said to "include" other components, this does not mean that it excludes other components, but that it may further include other components, unless otherwise specified.

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

[0028] Referring to these drawings, the head speed adjustable golf practice club 100 according to this embodiment comprises a first body portion 110, a second body portion 120, a rotation adjustment portion 130, and a position change portion 140 each having a specific structure, thereby increasing the precision of swing speed setting, allowing the swing speed to be set with easy operation, and providing a head speed adjustable golf practice club including a configuration that can prevent defects due to the user's inexperience in operation.

[0029] Hereinafter, each component of the head speed adjustable golf practice club 100 according to the present embodiment will be described in detail with reference to the accompanying drawings.

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

[0031] In addition, Figure 8 shows an exploded assembly diagram showing the assembled state of some components of the head speed adjustable golf club shown in Figure 7, Figure 9 shows an exploded assembly diagram showing the final assembly of the second main body part when some components of the head speed adjustable golf practice club shown in Figure 8 are assembled, and Figure 10 shows an oblique view showing the final assembly of the second main body part of the head speed adjustable golf practice club shown in Figure 9 using a pin after assembly.

[0032] 2 to 10, the first body portion 110 according to this embodiment is attached to one end of the golf swing training shaft 10, extends downward by a predetermined length, and has a structure in which sliding grooves G1 extending vertically by a predetermined length penetrate on both sides.

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

[0034] The shaft binding portion 111 of the first main body is configured to be fastened to one end of the golf swing training shaft 10 and extends downward by a predetermined length. The downward extension portion 112 extends downward by a predetermined length from the lower surface of the shaft binding portion 111, elastically fastens a rotation stopper 113 to the upper surface of one side, and has a sliding groove G1 formed in the center of one side that penetrates to both sides. The first thread binding portion 114 is formed by a predetermined width at the lower end of the outer periphery of the downward extension portion 112 and is configured to be screwed to the inner surface of the second main body portion 120. The second thread binding portion 115 is formed by a predetermined width at the lower end of the outer periphery of the downward extension portion 112 and is configured to be screwed to the inner surface of the second main body portion 120 at a predetermined distance from the first thread binding portion 114. The pin seating groove G2 is a structure formed between the first screw binding portion 114 and the second screw binding portion 115.

[0035] The second body 120 according to this embodiment is a hollow cylinder structure that is fixed to the lower end of the first body 110 by a pin P after fastening a bolt and extends downward by a predetermined length.

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

[0037] The downward extension cylinder 121 of the second body 120 is a hollow cylinder structure that extends downward by a predetermined length, and has a vent hole 122 formed in the center of its lower surface, forming a space within the hollow structure in which the moving weight 150 can move, and has a built-in elastic member 123 that elastically supports the lower surface of the moving weight 150 as it falls after detaching from the magnet 145. The cylinder binding part 124 is formed as an integral structure at the upper end of the downward extension cylinder 121 and is structured to be bolted to the second screw binding part 115 and the first screw binding part 114. The seating 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 makes surface contact with the inner surface of the lower end of the rotation controlling part 130, allowing the rotation controlling part 130 to rotate at a fixed position. The pin insertion hole 126 is formed on one side of the upper portion of the cylinder binding part 124, and has a structure that allows the pin P to be inserted in the direction of the pin seating groove G2.

[0038] The rotation adjustment part 130 according to this embodiment is disposed between the first body part 110 and the second body part 120, and has a ring structure attached to the outer circumferential surface of the first body part 110 in a structure that allows for fixed rotation, and has a structure in which a thread structure that engages with the outer circumferential surface of the position change part 140 is formed on the inner surface.

[0039] Specifically, the rotation adjusting part 130 may include a first rotation ring 131, a second rotation ring 132, and a slide rotation ring 133, each having a specific structure.

[0040] The first rotating ring 131 of the rotation adjusting part 130 is mounted in a fixed rotational structure along its outer circumferential surface to which the rotation stopper 113 of the downward extension part 112 is elastically fastened, and has grooves formed continuously at regular intervals along its inner circumferential surface to engage with the rotation stopper 113. The second rotating ring 132 is formed as an integral structure at 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 to engage with the outer circumferential surface of the position changing part 140. In addition, the sliding rotating ring 133 is formed as an integral structure at the lower end of the second rotating ring 132 and has a ring structure that slides while making surface contact with the seating step forming part 125.

[0041] The position changer 140 according to this embodiment is seated inside the sliding groove G1 of the first body 110 and is configured to advance or eject a predetermined depth from inside the first body 110 according to the rotation adjuster 130.

[0042] Specifically, the position changer 140 may include a variable housing portion 141 having a specific structure, a sliding member 142, and a magnet 145.

[0043] The variable receiving portion 141 of the position changer 140 is inserted into the sliding groove G1 to change its sliding position in the vertical direction, and has threads formed on both ends to be threadedly fastened to the second rotary ring 132. The sliding member 142 is a cylindrical structure that slides into the hollow structure of the downward extension 112 to a predetermined depth, and has through-holes 143 formed on both sides of the upper portion to insert and fix the variable receiving portion 141. In addition, the magnet 145 is attached to one end of the sliding member 142 and is a cylindrical structure that corresponds to the interior of the hollow structure of the downward extension 112, and is structured to magnetically attach to the upper surface of the moving weight 150.

[0044] As described above, the head speed adjustable golf practice club of the present invention is provided with a first main body 110, a second main body 120, a rotation adjustment unit 130, and a position change unit 140 having a specific structure, which allows the separation distance between the magnet and the movable weight to be precisely adjusted, thereby changing the timing at which the movable weight separates from the magnet depending on the speed of the swing motion, thereby increasing the precision of swing speed setting, allowing the swing speed to be set with easy operation, and providing a head speed adjustable golf practice club including a configuration that can prevent defects due to the user's inexperience in operation in advance.

[0045] Although the foregoing detailed description of the present invention has been described with reference to only specific embodiments thereof, it should be understood that the present invention is not limited to the specific embodiments set forth in the detailed description, but rather includes all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.

[0046] In other words, the present invention is not limited to the specific embodiments and explanations described above, and various modifications can be made by anyone with ordinary knowledge in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims, and such modifications are 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 part 112:Downward extension 113: Rotation stopper 114: First screw binding part 115: Second screw binding part G1: Sliding groove G2: Pin seating groove 120: Second main body part 121: Downward extension cylinder 122: Vent hole 123: Elastic member 124: Cylinder binding section 125: Step formation section 126: Pin insertion port P: Pin 130: Rotation adjustment part 131: First rotating ring 132: Second rotating ring 133: Slide rotating ring 140: Position change section 141: Variable storage section 142: Sliding member 143: Through fastening port 145: Magnet 150: Moving weight 10: Shaft

Claims

[Claim 1] a first body portion 110 attached to one end of the golf swing training shaft 10, extending downward by a predetermined length, and having sliding grooves G1 extending vertically by a predetermined length and penetrating both sides of the first body portion 110; a second body 120 having a hollow cylindrical structure, which is fixed to the lower end of the first body 110 by a pin P after fastening a bolt thereto and extends downward by a predetermined length; a rotation adjusting part (130) disposed between the first body part (110) and the second body part (120), which has a ring structure mounted on the outer circumferential surface of the first body part (110) in a structure capable of fixed rotation, and has a screw thread structure formed on its inner surface to engage with the outer circumferential surface of the position changing part (140); and a position changer 140 seated in the sliding groove G1 of the first body 110 and configured to advance or eject a predetermined depth from the inside of the first body 110 according to the rotation adjuster 130; Including, The first body portion 110 is a shaft binding part 111 having a structure to be fastened to one end of the golf swing training shaft 10 and extending downward by a predetermined length; a downward extension part 112 extending downward from the lower surface of the shaft binding part 111 by a predetermined length, elastically fastening a rotation stopper 113 to the upper surface of one side, and having a sliding groove G1 formed in the center of one side and having a structure penetrating to both sides; a first threaded fastening portion 114 formed at a lower end of the outer circumferential surface of the downward extension portion 112 by a predetermined width and configured to be threadedly fastened to an inner surface of the second body portion 120; a second threaded portion 115 formed at a lower end of the outer circumferential surface of the downward extension portion 112 by a predetermined width and spaced apart from the first threaded portion 114 to be threadedly fastened to the inner surface of the second body portion 120; and a pin seating groove G2 formed between the first threaded portion 114 and the second threaded portion 115; Including, The second body portion 120 is a downward extension cylinder 121 having a hollow cylinder structure extended downward by a predetermined length, with a vent hole 122 formed in the center of the lower surface, forming a space within the hollow structure in which the moving weight 150 can move, and having an elastic member 123 built in to elastically support the lower surface of the moving weight 150 when it falls after detaching from the magnet 145; a cylinder connection part 124 integrally formed at the upper end of the downward extension cylinder 121 and bolted to the second screw connection part 115 and the first screw connection part 114; a seating step forming part 125 that is continuously formed along the outer circumferential surface of the upper end of the cylinder binding part 124 and has a structure that is in surface contact with the inner surface of the lower end of the rotation control part 130, so that the rotation control part 130 rotates at a fixed position; and a pin insertion hole 126 formed on one side of the upper portion of the cylinder binding part 124, into which a pin P can be inserted in the direction of the pin seating groove G2; Including, The rotation adjusting unit 130 is a first rotating ring 131, in which the rotation stopper 113 of the downward extension 112 is attached along the outer circumferential surface thereof to be elastically fastened so as to be capable of fixed rotation, and in which grooves engaging with the rotation stopper 113 are formed continuously at regular intervals along the inner circumferential surface thereof; a second rotating ring 132 integrally formed at the lower end of the first rotating ring 131, extending downward by a predetermined length, and having a screw thread structure formed on its inner surface to engage with the outer circumferential surface of the position change portion 140; and a sliding rotating ring 133 having a ring structure integrally formed at the lower end of the second rotating ring 132 and in surface contact with the seating step forming portion 125 to perform a sliding motion; Including, The position change unit 140 a variable receiving portion 141 that is inserted into the sliding groove G1 and has a structure that allows the sliding position to be changed in the vertical direction, and has a structure in which threads are formed on both ends to be screwed together with the second rotating ring 132; a sliding member 142 having a cylindrical structure that slides into the hollow structure of the downward extension portion 112 to a predetermined depth and has through-holes 143 formed on both sides of the upper portion thereof, through which the variable receiving portion 141 is inserted and fixed; and a magnet 145, which is attached to one end of the sliding member 142, has a cylindrical structure corresponding to the inside of the hollow structure of the downward extension part 112, and is structured to magnetically attach the upper surface of the moving weight 150; A head speed adjustable golf practice club comprising:

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