Abstract:
The present invention relates to a golf swing correction apparatus using the moment of inertia in which a shoulder turn is improved by the moment of inertia of a swing which is not scattered and concentrated on the shoulder by the correction apparatus of a weight made to restrict a motion of a preceding arm during a swing of golf, accuracy of the impact is improved by preventing the preceding arm from bending to the follow-through for making a constant swing arc, and the carrying distance is increased by a muscular strength properly developed from the weight training, thereby properly correct a swing motion of golf.

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application claims the benefit of Korean Patent Application No. 20-2015-0002058, filed on Apr. 1, 2015, which is hereby incorporated by reference herein in its entirety. 
     BACKGROUND 
     1. Technical Field 
     The present invention relates generally to a golf swing correction apparatus using the moment of inertia, and more particularly to a golf swing correction apparatus using the moment of inertia in which the moment of inertia is used for making a constant swing arc and improving shoulder turn which are important in golf swing; weights are distributed to maximize the moment of inertia by restricting a motion of arms to concentrate the moment of inertia on the shoulder turn when the golf club is turning on the axis of the human body; a constant size of the swing arc is made by preventing the preceding arms from bending to the follow-through during a swing, thereby improving accuracy of the impact; and the carrying distance is improved as well due to the muscular strength developed from the weight training. 
     2. Description of the Related Art 
     In general, golf is a club and ball sport in which a player holds and swings a club using a rotational movement of the upper body and lower body to thereby hit the ball to the target location. 
     Here, the swing motion in golf needs a natural turning motion of the shoulders from the address, which is a basic posture in golf, to the finish. The preceding elbow should not be bent before reaching the take-back, back-swing, down-swing, impact, and follow-through except for the finish, and especially in the follow-through, both elbows should not be bent and the club should be maintained in an outstretched state to the target location. All the above conditions are very important to improve the accuracy and carrying distance of the swing motion. 
     For these reasons, people traditionally used heavy clubs or weight rings attached to the clubs during a swing to improve the shoulder turn by inertia and to constantly make the swing arc large. 
     However, in this case, there is a problem that the size of the swing arc decreases due to the wrong movement in which both elbows are bent during back-swing when the weight of the club by the reaction could not be overcome. In addition, because of the bent elbow, the moment of inertia for rotating the shoulder becomes weak, thereby not allowing for effective follow-through in the shoulder turn. Accordingly, there is a problem of failing to improve the direction and carrying distance as is hoped by golf enthusiasts. 
     PRIOR ART DOCUMENT 
     
         
         [Patent Document 1] Korean Patent Application No. 10-2012-0042000 
       
    
     SUMMARY 
     Thus, the present invention is to solve the above problems, and the object of which is to provide a golf swing correction apparatus using the moment of inertia that is capable of improving swing correction, flexibility, and muscular strength. 
     Another object of the present invention is to provide a golf swing correction apparatus using the moment of inertia that is capable of improving the shoulder turn by the energy of the moment of inertia generated by the weight during a golf swing by mounting the weight on the arm and also greatly increasing the carrying distance by enhancing muscular strength developed by the weight. 
     Another object of the present invention is to provide a golf swing correction apparatus using the moment of inertia including an elbow support to improve accuracy of the impact by always keeping the arc at a predetermined size without the elbow being bent during a swing action of golf to the follow-through. 
     Another object of the present invention is to provide a golf swing correction apparatus using the moment of inertia which has a support allowing the elbow of a preceding arm to not be bent during the follow-through of a swing except for the finish to prevent the energy of the moment of inertia from decentralizing while the elbows become bent and to concentrate the energy to direct the shoulder turn. 
     Another object of the present invention is to provide a golf swing correction apparatus using the moment of inertia which has a support allowing the elbow to not be bent to improve the shoulder turn during a back-swing and to make a natural turning motion around the shoulder with the elbow straightened during a down-swing to maintain the are stretched by distributing the weight to the wrist side which is further away from the rotating axis of the body to generate the moment of inertia at a maximum during a swing. 
     Another object of the present invention is to provide a golf swing correction apparatus using the moment of inertia which can increase or decrease the weight of the correction apparatus or may distribute more weight to the wrist side which is farther away from the rotating axis than the shoulder side to adjust the size of the moment of inertia improving shoulder turn. 
     Another object of the present invention is to provide a golf swing correction apparatus using the moment of inertia in which the weight of the correction apparatus for allowing the elbow to not be bent is distributed such that half of the total weight is distributed on a ¼ position to the wrist side and the correction apparatus is formed to wrap the wrist to maintain the swing arc. 
     To achieve the above objects, the present invention provides a swing correction apparatus for extending a swing motion of golf, which comprises: a correction apparatus protector  102  for allowing an elbow to be outstretched without being bent, which includes a protector body  10  having a receiving unit  14  formed inside, a swing correction weight member  104  which is received in the receiving unit  14  of the correction apparatus protector  102  for stretching a swing arc by increasing the weight in the direction of a wrist during a swing motion to direct the weight to the outside of the radius of gyration during a turning motion of the arms and shoulders for a swing; and a connection fixing means  106  for wrapping and fixing the elbow when the correction apparatus protector  102  is worn on an arm, wherein the swing correction weight member  104  includes a base weight member  20  and a centrifugal weight member  22  and the centrifugal weight member  22  is formed such that a length (B) of the centrifugal weight member is shorter than a length (A) of the base weight member. 
     And, it is preferable that an insertion receiving unit  28  is formed inside of a lower part of the swing correction weight member and a weight adjustment weight member  30  is equipped in the insertion receiving unit  28 . 
     It is preferable that a reception fixing unit  32  having a fixing groove  34  is formed on an upper side of a lower part of the swing correction weight member and a weight adjustment weight member  36  having a fixing protrusion  38  is inserted to be equipped in the reception fixing unit  32 . 
     Furthermore, it is preferable that Velcro straps are attached on an upper side and a lower side of the swing correction weight member and each of the swing correction weight member and the weight adjustment weight member is attached and connected to the upper and lower sides. 
     It is preferable that a weight member band filled with sand or a weight member band filled with steel powder is formed on the protector body  10  for wrapping a wrist. 
     According to the golf swing correction apparatus using the moment of inertia according to the present invention, there are advantages in that: flexibility and muscular strength are enhanced to increase the carrying distance in golf, shoulder turn is improved by concentrating the moment of inertia generated by the weight during a swing, and accuracy of the impact is improved by maintaining a constant size of the swing arc since the swing motion is performed while the elbow is constantly straightened. 
     In addition, the present invention has an advantage in stretching the muscles of arms, shoulders, and the back, which are used in golf for turns by preventing the elbow from being bent by the weight and by the reaction using the moment of inertia during the turn, and the stretched muscles allow soft swings to prevent the injury and allow exercise for a long time. 
     Furthermore, the present invention has an advantage that the directional consistency is improved since a trajectory of the golf swing is maintained constantly due to the moment of inertia increased by the weight, which allows a user to quickly and easily learn to play golf. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view showing a structure of a golf swing correction apparatus using the moment of inertia of the present invention. 
         FIG. 2  is an exploded perspective view showing a structure of a golf swing correction apparatus using the moment of inertia of the present invention. 
         FIG. 3  is a sectional view of  FIG. 1 . 
         FIG. 4  is a perspective view showing a structure of a weight member of an embodiment of a golf swing correction apparatus using the moment of inertia of the present invention. 
         FIG. 5  is a sectional view of  FIG. 4 . 
         FIG. 6  is a perspective view showing a structure of a weight member of another embodiment of a golf swing correction apparatus using the moment of inertia of the present invention. 
         FIG. 7  is a sectional view of  FIG. 6 . 
         FIG. 8  is an enlarged sectional view showing a coupling state of  FIG. 6 . 
         FIG. 9  is a perspective view showing a structure of another embodiment of a golf swing correction apparatus using the moment of inertia of the present invention. 
         FIG. 10  is a perspective view showing a movement state using a golf swing correction apparatus using the moment of inertia of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     The present invention relates to a swing correction apparatus for extending a swing motion in golf which comprises: a correction apparatus protector  102  for allowing an elbow to be outstretched without being bent, which includes a protector body  10  having a receiving unit  14  formed inside; a swing correction weight member  104  which is received in the receiving unit  14  of the correction apparatus protector  102  for stretching a swing arc by increasing the weight in the direction of the wrist during a swing motion to direct the weight to the outside of the radius of gyration during a turning motion of the arms and shoulders for a swing; and a connection fixing means  106  for wrapping and fixing the elbow when the correction apparatus protector  102  is worn on an arm, and it is preferable that the swing correction weight member  104  includes a base weight member  20  and a centrifugal weight member  22 , the centrifugal weight member  22  is formed such that a length (B) of the centrifugal weight member is shorter than a length (A) of the base weight member, an insertion receiving unit  28  is formed inside of a lower part of the swing correction weight member, and a weight adjustment weight member  30  is equipped in the insertion receiving unit  28 . 
     Now, a preferred embodiment of a golf swing correction apparatus using the moment of inertia according to the present invention is described. 
     Advantages and features of the present invention and methods of accomplishing the same will be apparent from the detailed description of exemplary embodiments with reference to the accompanying drawings. 
     However, the present invention may be embodied in many different forms and is not limited by the embodiments set forth herein. Rather, these embodiments are provided to complete the disclosure of the present invention and to fully convey the concept of the present invention to those skilled in the art pertinent to the present invention, and the present invention will be only defined by the appended claims. 
     Moreover, when the known technologies are determined to blur the essence of the present invention in describing the present invention, detailed description thereof will be omitted. 
     Rather, the embodiments introduced herein are intended to make this disclosure to be thorough and complete and fully convey the idea of the present invention to those skilled in the art. 
     The terms “first”, “second”, etc. will be used in describing various elements, but the elements are not limited to the above terms. These terms are only used to distinguish one element from the other. For example, without departing from the scope of the present invention, a first element could be named as a second element, and similarly, a second element could be named as a first element. 
     The terms “upper end”, “lower end”, “top surface”, “bottom surface”, “upper part”, “lower part”, and the like will be used to distinguish between the relative positions of the components. For example, when naming a top part of the drawing as an upper part and a bottom part of the drawing as a lower part for convenience, the upper part may be named as the lower part and the lower part may be named as the upper part in practice without departing from the scope of the present invention. 
     The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting the present invention. An expression of a singular form includes an expression of a plural form unless it is clearly defined otherwise in the context. In this application, the terms “comprise” or “have” is intended to designate that characteristics, numbers, steps, operations, elements, parts or combinations thereof are presented in the disclosure, and it should not be understood to preclude the presence or addition of any one or more of other features, numbers, steps, actions, components, or combinations thereof. 
     Unless defined otherwise, all terms, including technical or scientific terms, used herein have the same meaning as those terms are understood by those of ordinary skill in the art. General terms which are defined in a dictionary shall be construed in the same meaning in the context of the relevant art, unless otherwise defined explicitly, and it is not interpreted to have an idealistic or excessively formalistic meaning. 
     Hereinafter, a description of the present invention is provided with reference to a preferred embodiment applied to a golf swing correction apparatus using the moment of inertia with reference to the drawings, but the embodiments are not limited thereto. Rather, it should be noted in advance that a golf swing correction apparatus using the moment of inertia can be applied to a variety of uses and purposes when it is used. 
       FIG. 1  is a perspective view showing a structure of a golf swing correction apparatus using the moment of inertia of the present invention,  FIG. 2  is an exploded perspective view showing a structure of a golf swing correction apparatus using the moment of inertia of the present invention, and  FIG. 3  is a sectional view of  FIG. 1 . 
       FIG. 4  is a perspective view showing a structure of a weight member of an embodiment of a golf swing correction apparatus using the moment of inertia of the present invention,  FIG. 5  is a sectional view of  FIG. 4 ,  FIG. 6  is a perspective view showing a structure of a weight member of another embodiment of a golf swing correction apparatus using the moment of inertia of the present invention, and  FIG. 7  is a sectional view of  FIG. 6 . 
     In addition,  FIG. 8  is an enlarged sectional view showing a coupling state of  FIG. 6 . 
       FIG. 9  is a perspective view showing a structure of another embodiment of a golf swing correction apparatus using the moment of inertia of the present invention, and  FIG. 10  shows a movement state using a golf swing correction apparatus using the moment of inertia of the present invention. 
       FIGS. 1-10  illustrate only major characteristic parts clearly to help precise understanding of the present invention. Accordingly, it is expected that there might be various modifications in the explanatory diagram, and the scope of the present invention should not be restricted by the specific configuration illustrated in the drawings. 
     First, referring to  FIGS. 1 and 3 , a golf swing correction apparatus  100  using the moment of inertia of the present invention may comprise a correction apparatus protector  102  for receiving a weight to induce a rotational movement while wrapped around an elbow during a golf swing, a swing correction weight member  104  received and installed in the correction apparatus protector  102  for straightening the elbow, for maintaining the turn of the shoulders and rotation, and for turning using the reaction and centrifugal force during a swing, and the correction apparatus protector  102 . 
     In more detail, a protector body  10  being wrapped around an elbow is formed and body wings  12  and  13  are formed on the left and right sides of the protector body  10 , in the golf swing correction apparatus  100  using the moment of inertia. 
     It is preferable that a swing correction weight member  104  is received in the body  10 . 
     It is preferable that connection fixing means  106  is installed on the body wings  12  and  13 . 
     A receiving unit  14  is formed on an upper part or a rear part of the body  10 . The receiving unit  14  is preferably formed in an elongated shape to receive the swing correction weight member  104 . 
     The connection fixing means  106  are installed and fixed on the body wings  12  and  13  formed on one side of the body  10 , and the connection fixing means  106  consists of a plurality of fixing rings  16  fixed on the body wing  12  and a plurality of fixing bands  18  which are fixed on the body wing  13  and fixed by insertion into the corresponding fixing rings  16 . 
     Subsequently, a swing correction weight member  104  is received and installed in the receiving unit  14  of the body  10 , and it is preferable that the swing correction weight member  104  is formed to be wrapped around the arm to distribute weight applied to the arm during a back-swing to induce a natural shoulder turn and to restrict the inward or outward rotating movement of the arm or bending of the elbow as a whole during a swing motion. 
     The body  10  is preferably made of mesh material through which sweat is released well and through which air easily goes through. 
     In the swing correction weight member  104 , weights of the upper part and lower part are distributed unevenly, in which the ratio of the length (A) of the upper part to the length (B) of the lower part may be 2:1 or 3:1. 
     At this time, the weight of the upper part of length (A) can be 0.5 kg, and that of the lower part of length (B) can be 1.5 kg. These are only exemplary values of an embodiment of the present invention, and it is apparent that various modifications are possible. 
     The swing correction weight member  104  is preferably made of a base weight member  20  and a centrifugal weight member  22 . 
     The base weight member  20  has an arch shape for naturally covering the arm, and the centrifugal weight member  22  is formed on the extended lower part of the base weight member  20 . 
     On both sides of the centrifugal weight member  22  are formed wing portions  23  extended in left and right sides, and the wing portions  23  are combined to the body wings  12  and  13  to stably hold the wrist and to fix the swing correction weight member  104  so that it cannot be taken off easily. 
     The swing correction weight member  104  formed as described above improves the turn of the shoulders by concentrating an energy of the moment of inertia of the improved swing using a weight member on the shoulder which is the connecting part of the body and the restricted arm during a swing and further enhancing calking ability by moving the swing energy to the wrist in which the connecting part of the restricted arm and the hand. 
     That is, by the correction apparatus protector  102  in which a weight member is added, the arm is covered such that the bending movement of the elbow or the inward or outward rotating movement of the arm is restricted as a whole, which improves the shoulder turn and wrist calking during a back-swing. 
     The above-described swing correction weight member  104  is preferably made of steel to distribute weight; however, hard or soft materials of synthetic resins, rubber, silicon, etc. having weight can be used as well. 
       FIG. 3  is a sectional view of the present invention which shows the state that the swing correction weight member  104  is received in the receiving unit  14  of the body  10 . 
     Referring to  FIG. 4 , an embodiment of the present invention is described. The swing correction weight member  108  consists of a base weight member  24  and a centrifugal weight member  26  formed to be extended from the lower part of the base weight member  24 . 
     An insertion receiving unit  28  is formed in the centrifugal weight member  26 . 
     An adjustment weight  30  can be received and installed in the insertion receiving unit  28 . 
     The adjustment weight member  30  can be inserted into the centrifugal weight member  26  to adjust various weight distributions. That is, the weight adjustment weight member  30  may weigh 0.1 kg-2.0 kg, and it is inserted to allow a user to select a variety of a proper weight and swing pattern. 
     This is to induce a natural swing according to the weight the user is feeling and to protect the arm and the shoulder when the user cannot stand the weight of the load due to an excessive swing. 
     In addition, it is to prevent the size (arc) of the swing from decreasing by bending the preceding (left) elbow burdened by the weight of the club of the reaction during a swing motion of golf club, to distribute the weight to the upper and lower part differently, in which more weight is distributed to the lower part of the elbow farther away from the rotating axis during a swing, which maximizes the moment of inertia to perform a shoulder turn. That is, more weight is applied to the hand and wrist portions than the shoulder portion to shoulder turn while maximizing the size of the swing arc with the elbow straightened. 
     For example, a half of the total weight of the swing correction weight member  104  can be distributed and applied on a ¼ position to the wrist side of the correction apparatus protector  102 . 
     Furthermore, either a weight member band filled with sand or a weight member band filled with steel power to surround the wrist may be preferably formed on the wrist side of the protector body  10  of the correction apparatus protector  102 . 
     The weight member band is preferably a band shape of one or at least two surrounding the wrist with a specific width. 
       FIG. 5  shows a state that the swing correction weight member  108  is received in the receiving unit  14  of the correction apparatus protector  102  of the present invention, wherein a weight adjustment weight member  30  is inserted and received in the swing correction weight member  108 . 
       FIG. 6  shows another embodiment of the present invention, wherein a base weight member  24  is formed in the swing correction weight member  110 , a centrifugal weight member  26  is formed which is extended from a lower part of the base weight member  24 , a reception fixing unit  32  is formed in the centrifugal weight member  26 , and a fixing groove  34  is formed on one side of an inner portion of the reception fixing unit  32 . 
     A weight adjustment weight member  36  is inserted and fixed in the reception fixing unit  32 . 
     At this time, a fixing protrusion  38  is formed on one side of the weight adjustment weight member  36 , and the fixing protrusion  38  is inserted to the fixing groove  34  to be received. 
     In the meantime, a slanted coupling sill  33  is formed on an inner edge of one side of the reception fixing unit  32 , and the weight adjustment weight member  36  preferably slides to be coupled smoothly. 
     Referring to  FIGS. 7 and 8 , it is shown that the swing correction weight member  110  is received and coupled in the receiving unit  14  of the correction apparatus protector  102 , and the weight adjustment weight member  36  is inserted and coupled in the reception fixing unit  32  of the swing correction weight member  110 . 
       FIG. 9  is another embodiment of the present invention, which shows that an attachment means  112  such as Velcro etc. is fixed on an upper surface or a lower surface of the swing correction weight member  104 , and the upper and lower surfaces of the swing correction weight member  104  can be attached using the attachment means  112 . 
     It provides a good compatibility by providing and combining a variety of weights depending on the users using freely detachable attachment means  112  as described above. 
       FIG. 10  is a use state perspective view showing a user swinging with the correction apparatus protector  102  in which a swing correction weight member  104  of the present invention is inserted wearing on a wrist, which shows that the arc of the turning reaction distance (C) is sufficiently achieved while the elbow is not bent and the radius of gyration is maximized by directing the weight of the swing correction weight member  104  to the wrist side from a back-swing through a down-swing to reach a half-swing. 
     Also, during a swing from an impact moment to a full follow-through, the arc of the swing turning reaction distance C) is sufficiently achieved while the elbow is not bent and the radius of gyration is maximized. 
     As described above, the present invention may be variously implemented by fixing the weight member for generating the moment of inertia to the protector body  10  using various attachment means or fixing means such as Velcro and the like or by sewing the weight member band filled with sand or steel powder onto the protection body  10 . 
     The above detailed description is for the purpose of giving merely an illustrative explanation of the technical idea of the present invention, and various changes, modifications, and substitutions may be made to the invention by those skilled in the art pertinent to the present invention without departing from the essential features of the present invention. Accordingly, the embodiments and accompanying drawings disclosed in the present invention are only to illustrate the technical idea of the present invention and the scope of the technical idea of the present invention is not limited by the embodiments and accompanying drawings. The scope of the present invention should be interpreted by the appended claims, and all the technical ideas which fall within the equivalent scope should be interpreted to be included in the scope of the present invention.