JP2006068259A - Golf swing training implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that only merely swinging a golf club without ball is not interesting in swing training of golf and that there is no index for correcting swing to be proper one in such training. <P>SOLUTION: This golf swing training implement is constituted by providing a grip part 4 at the proximal end 2a of a shaft 2 having a hollow part 3 therein and having a prescribed length, housing a weight 5 in the hollow part 3 of the shaft 2 in the state of being movable in the direction of the length of the shaft, and providing a plug 6 for preventing taking out of the weight 5 at the distal end 2b of the shaft 2. Thus, the weight 5 is moved to the side of the distal end of the shaft in the case of swinging to generate colliding force and colliding sound, so that a user can obtain bodily sensation close to a touch of hitting the golf ball actually, and the colliding force etc. become the index for correcting the swing properly. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a golf swing practice tool.

  In many cases, golf club swing practice is generally performed by swinging a golf club used for actual play. In addition, the golf swing is performed as a series of operations from the top position to the downswing, through the hitting position to the follow-through, and the swing speed during the series of operations is at the time of hitting the golf ball (or immediately before it). ) Is preferably fastest. In the following description, the hitting position of the golf ball at which the swing speed should be the fastest or the position immediately before it may be collectively referred to as “near the hitting position”.

  By the way, when practicing a golf swing, simply swinging a golf club used for play does not actually hit a golf ball, so there was no sense of hitting the golf ball and there was an unsatisfactory feeling. Further, simply swinging the golf club does not know at which point in the series of swing operations (from the start of the downswing to the completion of the follow-through) the top speed, and there is almost no action to correct the swing. That is, it is preferable that the golf swing has a top speed in the vicinity of the ball hitting position of the golf ball. However, by simply swinging the golf club, the golf swing is corrected to an appropriate swing (correcting the top speed position to an appropriate position). There are no indicators.

  Further, among known golf clubs (for practice), as shown in Japanese Patent Application Laid-Open No. 2001-178860 (Patent Document 1) or Japanese Patent Application Laid-Open No. 2004-105648 (Patent Document 2), a golf club swings when the golf club swings. It is known that a sound is generated when a head or a shaft cuts wind. In each known golf club, it is considered that the higher the swing speed, the higher the sound.

JP 2001-178860 A JP 2004-105648 A

  However, in each of the above known (Patent Document 1 and Patent Document 2) golf clubs, although a sound is generated when the golf club swings, the sound is continuously generated during a series of swing operations, and is greatest at the time point of the throat. It seems difficult to determine whether sound has occurred. Therefore, it is difficult to become an index for acquiring the skill of “to make the top speed near the hitting position of the golf ball” in the golf swing. In each of the known golf clubs, although a sound is produced at the time of swing, there is no hitting impact such as actually hitting a golf ball, and it is not interesting for swing practice.

  In view of the above-described problems of the known golf clubs, the present invention provides a feel close to that of an actual hitting ball and an appropriate swing (in particular, a top speed near the hitting position of the golf ball). The purpose is to provide a golf swing training device that can detect the sound by sound and impact.

  The present invention has the following configuration as means for solving the above problems. The present invention is directed to a golf swing practice tool.

  The golf swing practice tool of the present invention is provided with a grip portion at a base end portion of a shaft that is hollow and has a predetermined length, and a weight is movably accommodated in the shaft length direction in the shaft hollow portion. The tip is provided with a stopper for preventing the weight from coming off.

  Since the golf swing practice tool of the present application does not actually hit a golf ball, a club head is not necessary at the tip of the shaft, but it may be equipped with the club head.

  The size of the golf swing practice tool is not particularly limited, but the golf swing practice tool has a total length of about 500 to 700 mm and a shaft outer diameter of about 14 to 18 mm (in this case, the shaft inner diameter is about 11 to 15 mm). preferable. If the overall length is about 500 to 700 mm, the swing can be practiced indoors.

  The weight accommodated in the hollow part in the shaft should have a considerable weight (for example, a range of 50 to 100 g is appropriate). In addition, since the hollow part in a shaft has a limit in an internal diameter, the weight is preferably made of steel having a large specific gravity (the specific gravity of steel is about 7.8) and having a round bar shape having a predetermined length. In this case (when the weight is a round steel bar), the outer diameter of the weight is considerably smaller than the inner diameter of the hollow portion (for example, the outer diameter of the weight is set to 8 to reduce friction (contact surface) with the inner surface of the hollow portion of the shaft during weight movement. 10 mm), and the length is adjusted accordingly (for example, adjusted in the range of about 100 to 200 mm) to obtain a predetermined weight.

  The stopper at the tip of the shaft is firmly fixed by screwing or welding. However, if necessary, a stopper pin may be inserted across the shaft and the stopper. In addition, although the shaft proximal end side is closed by the proximal end portion of the grip portion, a plug may be provided separately.

  In the golf swing practice tool of the present application, in a state where the grip portion is gripped and the tip end side of the shaft is swung up, the weight in the shaft hollow portion moves to the grip side by its own weight. And at the time of swing, this golf swing training equipment moves from the top posture to the down swing, and moves while changing the angle sequentially from the hitting position (substantially vertical position when viewed from the front) to the follow-through completion posture. The weight in the shaft moves rapidly from the grip side to the shaft tip side. The action of moving the weight is mainly a centrifugal force during swing, and in addition to that, the weight of the weight is taken into account. When the weight reaches the tip of the shaft (plug portion), the weight collides with the plug, thereby generating an impact force and a collision sound.

  By the way, although a golf swing is completed in a very short time of 1 second inside or outside each time, the swing speed should be fastest in the vicinity of the golf ball hitting position (top speed) during a series of swings. Is preferred. That is, the higher the swing speed (head speed) at the moment of hitting the golf ball, the longer the golf ball travels. And in the golf swing training device of the present application, the centrifugal force works most greatly in the vicinity of the top speed during the downswing from the start of the swing, and at that time, the weight in the shaft moves from the shaft proximal end side to the shaft distal end side. Work hard. If the shaft is tilted downward by an angle of about 45 ° with respect to the horizontal plane, the weight inside the shaft will move to the shaft tip side against the frictional force against the inner surface of the hollow part due to its own weight, but the downswing will start. It is instantaneous until the shaft is in a posture toward the golf ball hitting position (substantially vertical position when viewed from the front). Therefore, it is not certain how much the weight has moved down to the tip of the shaft when the shaft is tilted down, but the weight is surely colliding with the stopper on the tip of the shaft near the golf ball hitting position. Feels the moving impact force of the weight in the vicinity of the golf ball hitting position and makes it possible to hear a collision sound in which the weight collides with the stopper. The impact force and impact sound of the weight are close to the impact reaction force and the hitting sound when the golf ball is actually hit with the club head.

  As described above, in the golf swing practice tool of the present invention, since the weight impact impact force is felt near the golf ball hitting position when swinging, and the collision sound in which the weight collides with the stopper is heard, when the golf ball is actually hit A feeling close to the impact force and the hitting sound is obtained, and there is an effect that the swing practice can be enjoyed without actually hitting the golf ball.

  Also, with this golf swing training device, if the swing speed does not increase to the speed at which the golf ball is actually hit properly, the weight movement timing is shifted and the impact at the appropriate position (around the golf ball hitting position) is reached. Since no force or collision sound is obtained, the golf swing practice tool has an effect of correcting the golf swing because the impact force and the collision sound are indicators of a proper swing.

  The golf swing practice tool of the present embodiment will be described with reference to FIGS. 1 to 3. The golf swing practice tool 1 shown in FIGS. 1 and 2 has a hollow shaft (reference numeral 3) and a shaft 2 having a predetermined length. A grip portion 4 is provided on the base end portion 2a of the shaft 2, and a weight 5 is accommodated in the hollow portion 3 of the shaft 2 so as to be movable in the length direction of the shaft. A stopper 6 is provided. Since the golf swing practice tool 1 of this embodiment does not actually hit a golf ball, a club head is not attached to the shaft tip 2b.

  The golf swing practice tool 1 preferably has a total length of 500 to 700 mm and an outer diameter of the shaft 2 portion of 15 to 18 mm (an inner diameter of 12 to 15 mm). If the overall length is about 500 to 700 mm, the swing can be practiced indoors.

  The weight 4 accommodated in the hollow portion 3 in the shaft 2 is made of steel and has a weight of about 50 to 100 g. If the weight 5 is too light, the moving force at the time of swing is low, and if it is too heavy, the moving impact force becomes too large and an actual golf ball hitting sensation cannot be obtained. Further, since the weight 5 has a limit in the inner diameter of the shaft hollow portion 3, a round bar steel having a predetermined length (the specific gravity of the round bar steel is about 7.8) is required to ensure an appropriate weight weight (50 to 100 g). I use it. In this embodiment, a weight 5 having an outer diameter of about 8 to 10 mm and a length of about 100 to 200 mm is used, so that the weight 5 can freely move within the shaft hollow portion 3. It has become. The material of the weight 5 or each numerical value described above is not particularly limited, and can be appropriately changed in design.

  The plug 6 of the shaft tip 2b is made of steel and is firmly fixed to the shaft tip 2b by screwing or welding, and is reinforced with a pin 7 for retaining. Since the stopper 6 is made of steel, the collision sound becomes loud when the weight 5 (steel) collides, but if the collision sound becomes too loud, You may stick buffer materials, such as rubber | gum, to an inner end surface. In this embodiment, another plug 8 is also provided on the base end 2 a side of the shaft 2.

  The golf swing practice tool of this embodiment functions as follows. First, as shown in FIG. 3A, in a state where the grip portion 4 is gripped and the shaft tip side is swung up, the weight 5 in the shaft 2 is moved to the grip 4 side by its own weight (reference numeral 5 in FIG. 2). ′). In FIGS. 3A to 3C, the weight 5 is displayed in black. At the time of swing, the golf swing training tool 1 moves from the top posture of FIG. 3A to the down swing, and passes through the hitting position (substantially vertical position when viewed from the front) shown in FIG. Move to the follow-through completed posture of (C), changing the angle sequentially. When the golf swing training device 1 is downswing, a large centrifugal force is applied to the weight 5 in the shaft 2, and the weight 5 in the shaft 2 is positioned near the grip 5 near the golf ball hitting position shown in FIG. Rapidly moves to the shaft tip side (plug 6 side) (position indicated by reference numeral 5 ″ in FIG. 2). When the weight 5 reaches the shaft tip portion 2b, the weight 5 collides with the plug 6. As a result, an impact force and a collision sound are generated.

  By the way, it is preferable that the golf swing be fastest in the vicinity of the hitting position of the golf ball (become top speed) during a series of swings. In the golf swing practice tool 1 of this embodiment, the centrifugal force acts most in the vicinity of the top speed during the downswing from the start of the swing, and at that time, the weight 5 in the shaft 2 moves from the shaft proximal end side to the shaft distal end side. The action to move to works strongly. The golf swing is instantaneous from the start of the downswing shown in FIG. 3 (A) until the shaft 2 shown in FIG. 3 (B) is in a posture toward the golf ball hitting position. The weight 5 moves rapidly to the shaft tip (plug 6).

  In addition, since the downswing is instantaneous, it is not certain how much the shaft 2 is inclined downward, but the weight 5 has moved to the shaft tip side, but it is certain in the vicinity of the golf ball hitting position in FIG. The weight 5 has moved to the shaft front end side, and the swing practitioner feels the moving impact force of the weight 5 in the vicinity of the golf ball hitting position and can hear a collision sound in which the weight 5 collides with the stopper 6. The impact force and impact sound of the weight 5 are close to the impact and the hitting sound when the golf ball is actually hit.

  Therefore, when this golf swing practice tool 1 is used, it is possible to feel the feeling as if the golf ball was actually hit by simply swinging (without hitting the golf ball), and the swing practice can be enjoyed.

  Also, in this golf swing practice tool 1, if the swing speed is not as fast as the speed at which the golf ball is actually hit properly, the movement timing of the weight 5 is shifted and the proper position (near the golf ball hit position). Impact force and impact sound cannot be obtained. Therefore, this golf swing practice tool has a correction function for an appropriate swing by the impact force and the collision sound.

It is a front view of the golf swing practice tool of an example of the present application. It is II-II sectional drawing of FIG. It is a function explanatory view of the golf swing practice tool of FIG.

Explanation of symbols

  1 is a golf swing training tool, 2 is a shaft, 2a is a shaft base end portion, 2b is a shaft tip portion, 3 is a hollow portion, 4 is a grip portion, 5 is a weight, and 6 is a stopper.

Claims (1)

A grip portion (4) is provided at a base end portion (2a) of a shaft (2) having a predetermined length with a hollow inside (3), and a weight (5) is provided in the hollow portion (3) of the shaft (2). A golf swing training tool characterized by being accommodated movably in the shaft length direction and provided with a stopper (6) for retaining the weight (5) at the tip (2b) of the shaft (2).

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