JP6347942B2 - Sports training equipment and method of use - Google Patents

Description

  The present invention relates to a sports exercise tool and a method of using the same, and more particularly to a sports exercise tool and a method of using the same that can be suitably used for sports training for handling rod-shaped bodies such as golf, baseball, and kendo.

  In order to efficiently hit a hit object such as a ball with a rod-like body used in sports such as golf or baseball, it is necessary to effectively use the bending of the rod-like body. For example, in a swing such as golf, the left and right direction bending management to generate the reverse bending at the time of impact, the vertical direction bending management in the previous stage, and the waggle, forward press, back Strict management for each aspect such as swing is necessary.

  However, a rod-shaped body used in sports generally has high rigidity, so it is difficult to experience bending, and even if bending occurs, it can occur in any direction. It was difficult to learn what to do.

  Regarding the swing of golf and baseball, various theories have been developed so far, but only the way of moving the body tends to be close-up, and there is no theory that makes the best use of the shaft bending, It was like a black box that could be realized by only a few top players. In this regard, Koji Kajigami, one of the inventor and professional golfer, is concerned about leveling down the competition through the lesson activities and fitting activities, and correct inheritance of the traditional swing, making it easy to use the rods efficiently. We have eagerly developed educational systems and practice tools so that students can learn.

  As a conventional practice tool, for example, a golf swing practice tool disclosed in Patent Document 1 is known. This practice tool is configured by arranging an extension spring consisting of a coil spring and a compression spring in series in a shaft simulating a golf club. The extension spring is extended by centrifugal force when swung, and the compression spring is The center of gravity of the shaft moves by compressing. In this practice tool, the amount of movement of the center of gravity position of the shaft changes according to the rotation speed of the shaft, and the user can experience a large movement of the center of gravity position as the shaft is swung faster.

JP 2007-275167 A

  However, the above-mentioned conventional practice tool can sense the centrifugal force acting on the shaft, but does not have a function to sense the bending acting on the shaft, so what should be done during the swing of the shaft. There was a problem that the user could not recognize. Therefore, it has been difficult for the user to learn the timing of cocking, hinge, release, etc. for realizing the effective and smooth return of the shaft and the counter operation using the lever in the grip.

  Therefore, an object of the present invention is to provide a sports exercise tool and a method for using the same, which allow a user to easily learn how to efficiently use a rod-like body used in sports.

The object of the present invention is provided with a rod-like body having a grip portion on the base end side, and a stretchable body having one end fixed to the rod-like body, and the stretchable body is made of a long elastic body and has the other end A side is contracted in a spiral shape by a restoring force, and a plurality of the stretchable bodies are arranged in the circumferential direction of the rod-shaped body, and each is achieved by a sports practice tool that curves in a direction away from the rod-shaped body .

  The stretchable body is preferably arranged on both sides of the rod-shaped body so as to expand and contract along a first virtual plane including the axis of the rod-shaped body.

  It is preferable that the stretchable body is further arranged on both sides of the rod-shaped body so as to stretch and contract along a second virtual plane that intersects the first virtual plane and the axis of the rod-shaped body. In this configuration, the rod-shaped body includes a first flexible portion in which a main bending deformation occurs along the first virtual plane, and a main bending deformation that is provided on a distal end side with respect to the first flexible portion. And a second flexible portion generated along the second virtual plane.

  In addition, the object of the present invention is a method of using the sports training tool provided with a stretchable body that expands and contracts along a first virtual plane on both sides of the rod-shaped body. Swinging up the rod-like body so as to extend one of the stretchable bodies arranged along, and extending the rod-like body so as to extend the other of the stretchable bodies arranged along the first virtual plane. This is achieved by a method of using a sports practice tool comprising a step of swinging down.

  Alternatively, the object of the present invention includes a stretchable body that expands and contracts along a first virtual plane on both sides of the rod-shaped body, and a stretchable body that stretches and contracts along a second virtual plane on both sides of the rod-shaped body. A method of using the sports training tool described above, wherein one of the stretchable bodies arranged along the first virtual plane is extended, and then arranged along the second virtual plane. Swinging up the rod-like body so as to extend one of the elastic bodies, and extending the other of the elastic bodies arranged along the second virtual plane, and then along the first virtual plane And a step of swinging down the rod-like body so as to extend the other of the arranged stretchable bodies.

  ADVANTAGE OF THE INVENTION According to this invention, the exercise tool for sports and the usage method which a user can learn efficiently how to use the rod-shaped body used for a sport easily can be provided.

It is a top view of the training device for sports concerning one embodiment of the present invention. It is a figure for demonstrating the usage method of the training device for sports shown in FIG. It is a top view of the training device for sports concerning other embodiments of the present invention. It is a top view which shows an example of the use condition of the sport training tool shown in FIG. It is a top view of the training device for sports concerning other embodiments of the present invention. FIG. 6 is a front view of the sports training tool shown in FIG. 5. It is a top view of the training device for sports concerning other embodiments of the present invention. FIG. 8 is a front view of the sports training tool shown in FIG. 7.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view of a sports practice tool according to an embodiment of the present invention. A sports practice tool 1 shown in FIG. 1 is used for practice of a golf club, and includes a rod-shaped body 10 and a stretchable body 20 attached to the rod-shaped body 10.

  The rod-shaped body 10 has a linear axis and includes a grip portion 12 on the proximal end side. The stretchable body 20 is formed in a long shape, and one end side is fixed to the tip of the rod-shaped body 10.

  The stretchable body 20 is configured by arranging one or a plurality of wire rods made of spring steel along the longitudinal direction on the back side of a thin strip-like base material made of paper, synthetic resin, etc., as shown in FIG. As shown in the figure, when the hand is released from the state where the other end side of the expansion / contraction body 20 is extended, bending is performed so as to be wound and contracted by a restoring force as shown in FIG. Has been. The stretchable body 20 may be an elastic body that reliably returns to its original shape after being stretched, and may be constituted by, for example, a strip made of a spring material. A cone 30 made of a metal sphere or the like is provided on the other end side of the stretchable body 20, and is configured to promote extension of the stretchable body 20 by the action of an external force.

  Next, the usage method of the sports training tool 1 provided with said structure is demonstrated. First, as shown in FIG. 2A, the user grips the grip portion 12 with both hands so that the cone 30 is arranged on the right foot side (back side in the batting direction) with respect to the rod-shaped body 10, and golf After taking the posture of the address of the swing, the rod-like body 10 is swung up and the backswing and downswing similar to the golf swing are performed. In the backswing, since the force in the winding direction acts on the distal end side of the stretchable body 20, the original spiral shape is maintained as the shape of the stretchable body 20.

  On the other hand, in the downswing, in the latter half of the downswing, the user performs a counter action (an action to decelerate the movement of the gripping part 12 by applying a force in the direction opposite to the swinging direction to the gripping part 12). When 10 becomes horizontal, a force in the direction of releasing the winding acts on the distal end side of the stretchable body 20, and the stretchable body 20 begins to expand as shown in FIG. And as shown in FIG.2 (c), the substantially whole stretchable body 20 expand | extends in the impact vicinity of a golf swing. The extension of the stretchable body 20 can be recognized by the user both visually and physically, so that the user can easily grasp whether the size, timing, etc. of the stretchable body 20 are appropriate. .

  In the golf swing, so-called "reverse beating" is effective in causing the front end of the golf club to be in the striking direction at the time of impact of the ball, and in order to accurately cause such reversal, It is necessary to perform the above counter operation correctly. The sports practice tool 1 of the present embodiment is configured such that the stretchable body 20 is not easily stretched by a centrifugal force like a coil spring, but is easily stretched by appropriately performing a counter operation. In addition, it is possible to efficiently learn the counter operation for causing the golf club to be reversed at the time of impact.

  The number of the stretchable bodies 20 attached to the rod-shaped body 10 is not necessarily a single number as in the present embodiment, and a plurality of the stretchable bodies 20 may be arranged in the circumferential direction of the rod-shaped body 10. According to this configuration, the different stretchable bodies 20 can be stretched and contracted according to the direction in which the rod-shaped body 10 is swung, and it is possible to easily learn how to effectively golf the golf club at each stage during the swing. The plurality of stretchable bodies 20 are preferably arranged so that the base end side is arranged along the rod-shaped body 10 and the distal end side is curved in a direction away from the rod-shaped body 10.

  FIG. 3 is a plan view showing an example of a sports practice tool 1 ′ including two elastic bodies 20 a and 20 b. The stretchable bodies 20a and 20b are respectively disposed on both sides of the rod-like body 10, and the base end side is fixed to the outer peripheral surface of the rod-like body 10 with a fastener 13 such as a tape or a bush. The distal ends of the stretchable bodies 20a and 20b are curved in a spiral shape opposite to each other so as to be separated from the rod-shaped body 10, and are stretched along a virtual plane parallel to the drawing including the axis of the rod-shaped body 10. Has been placed. Although the material and length of the rod-shaped body 10 are not particularly limited, for example, by using the same material as the shaft of a golf club, swing practice can be performed with a sense of swinging an actual golf club. A head similar to an actual golf club may be provided at the tip of the rod-shaped body 10.

  According to the sports practice tool 1 ′ shown in FIG. 3, as shown in FIGS. 4 (a) and 4 (b), when the force in the direction of the arrow acts on the distal end side of the rod-like body 10, the rod-like body 10 is bent. One of the two stretchable bodies 20a and 20b that is located outside the curved shape expands, and the other that is located inside the curved shape contracts. Therefore, the stretching operation of the stretchable bodies 20a and 20b during the swing makes it possible to correctly grasp the bent state of the golf club at each stage of the swing, and to facilitate efficient learning of the swing.

  In this sports practice tool 1 ′, it is preferable that the user grips the grip portion 12 so that the stretchable bodies 20 a and 20 b are arranged along the striking direction at the time of addressing. Then, after the stretchable body 20a on the rear side in the striking direction is slightly extended by the forward press, the initial stage of the backswing is performed so that the stretchable body 20b on the front side in the striking direction is stretched, thereby producing an appropriateness. A backswing can be performed. Then, at the time of the impact in the latter half of the downswing, it can be confirmed whether or not the counter operation can be performed at an appropriate timing based on the size and timing at which the telescopic body 20a on the rear side in the batting direction extends.

  FIG. 5 is a plan view showing an example of a sports practice tool 1 ″ including four stretchable bodies 20 a, 20 b, 20 c, and 20 d. A sports practice tool 1 '' shown in FIG. 5 includes two new elastic bodies 20c and 20d in addition to the two elastic bodies 20a and 20b provided in the sports practice tool 1 ′ shown in FIG. . As shown in a front view in FIG. 6, the two stretchable bodies 20 a and 20 b are arranged on both sides of the rod-shaped body 10 so as to stretch and contract along the first virtual plane P <b> 1 including the axis L of the rod-shaped body 10. Yes. On the other hand, the other two stretchable bodies 20c and 20d are disposed on both sides of the rod-shaped body 10 so as to stretch and contract along the second virtual plane P2 including the axis L of the rod-shaped body 10. The first virtual plane P1 and the second virtual plane P2 are preferably orthogonal to each other as in the present embodiment, but may be arranged to intersect at other angles.

  This sports practice tool 1 ″ can be used as follows. First, similarly to the above, the user takes an address so that the two stretchable bodies 20a and 20b are arranged along the hitting direction. In this state, the first virtual plane P1 indicating the direction in which the two elastic bodies 20a and 20b extend and contract is arranged so as to expand in the left and right direction of the user, and the other two elastic bodies 20c and 20d extend and contract. The second virtual plane P <b> 2 showing is arranged so as to expand in the front-rear direction of the user.

  Next, the user performs a backswing. In the initial stage of the backswing after the forward press, the rod-shaped body 10 is swung up mainly by the rotation of the body, and one of the two stretchable bodies 20a and 20b disposed along the first virtual plane P1 is moved. The rod-like body 10 is made to stretch. Thereafter, the rod-like body 10 is further swung up mainly by the movement of the arm, and the rod-like body 10 is extended so as to extend one of the two stretchable bodies 20c, 20d arranged along the second virtual plane P2. Let it be. Thus, after the backswing is completed, the user continues to downswing.

  At the start of the downswing, the downward pulling of the grip portion 12 is started by the hip turning operation. Then, the user performs a counter operation in the vertical direction to reverse the bending direction of the rod-like body 10 and to extend the other telescopic body 20a along the first virtual plane P1. Thereafter, the user swings the rod-like body 10 in the horizontal direction by rotating the body, and extends the other telescopic body 20c along the second virtual plane P2 by the counter operation in the horizontal direction. In this way, the follow-through is performed while the rod-shaped body 10 is adapted to the striking direction.

  According to the above method of using the sports practice tool 1 '', the telescopic body 20b that extends along different virtual planes as to whether or not the backswing that causes the golf club to properly be performed can be performed. It is possible to correctly grasp the order, size, timing, and the like of 20d expansion. Similarly, the extension order of the stretchable bodies 20a and 20c extending along different virtual planes indicates whether or not the vertical counter operation and the horizontal counter operation sequentially performed during the downswing could be appropriately performed. It can be grasped correctly by size, timing, etc.

  FIG. 7 is a plan view showing another example of a sports practice tool 1 ″ ″ having four stretchable bodies 20 a, 20 b, 20 c, 20 d, and FIG. 8 is a front view thereof. 7 and FIG. 8, the sports training tool 1 ′ ″ shown in FIGS. 7 and 8 is similar to the sports training tool 1 ″ shown in FIGS. The other parts are the same as the sports training tool 1 '' shown in FIGS.

  Both the first flexible portion 14 and the second flexible portion 16 are formed in a flat band shape. A highly rigid portion 18 is preferably interposed between the first flexible portion 14 and the second flexible portion 16. The first flexible portion 14, the high-rigidity portion 18, and the second flexible portion 16 have their center lines arranged in a straight line along the axis L of the main body 10, and the first flexible portion 14. The second flexible portion 16 is disposed on the distal end side of the. The first flexible portion 14 and the second flexible portion 16 are plate-like bodies made of a metal material such as titanium, aluminum, magnesium, or an alloy thereof, or a non-metal material such as carbon or graphite, for example. It can be bent and deformed in the thickness direction. The 1st flexible part 14 and the 2nd flexible part 16 can be made into the same cross-sectional shape with the same material, for example.

  The high-rigidity portion 18 is configured by cutting out the center of one end of the first flexible portion 14 and the second flexible portion 16, inserting the other end, and integrating them by welding or the like. The cross section is formed in a cross shape orthogonal to the axis L. The lengths of the first flexible portion 14 and the second flexible portion 16 in the direction of the axis L may be different from each other or may be the same. In order to effectively use the flexure of the two flexible portions 16, it is preferable that both are longer than the length of the high-rigidity portion 18 in the axis L direction.

  The 1st flexible part 14 is comprised so that the main bending deformation may arise along the 1st virtual plane P1, and the 2nd flexible part 16 is the main bending along the 2nd virtual plane P2. It is comprised so that a deformation | transformation may arise. The main direction of bending deformation is the direction in which the external force acts when the first flexible portion 14 and the second flexible portion 16 are fixed to one end and an external force is applied to the other end. The direction along which the amount of deflection along the line is maximized is usually the direction where the bending rigidity is minimized.

  The high rigidity portion 18 is the first flexible portion when the bending rigidity in the direction along the first virtual plane P1 and the bending rigidity in the direction along the second virtual plane P2 are compared in the same direction. It is preferable that it is equal to or more than the bending rigidity of the 14 and the second flexible portion 16. That is, in the direction along the first virtual plane P1, the bending rigidity of the second flexible portion 16 is larger than the bending rigidity of the first flexible portion 14, but the first rigidity of the high-rigidity portion 18 is increased. The bending rigidity in the direction along the virtual plane P1 is preferably equal to or greater than the bending rigidity of the second flexible portion 16 in this direction. Similarly, in the direction along the second virtual plane P2, the bending rigidity of the first flexible portion 14 is larger than the bending rigidity of the second flexible portion 16, but The bending rigidity in the direction along the imaginary plane P2 of 2 is preferably equal to or greater than the bending rigidity of the first flexible portion 14 in this direction. By configuring the high-rigidity portion 18 in this way, when bending deformations in different directions occur in the first flexible portion 14 and the second flexible portion 16, the influence of bending between each other can be reduced. The first rigid portion 14 and the second flexible portion 16 can be reliably cut along the first virtual plane P1 and the second virtual plane P2, respectively. it can. The bending stiffness can be obtained from the product of Young's modulus and the cross-sectional second moment, and can be calculated from the material and the cross-sectional shape. When it is difficult to calculate the bending rigidity based on the cross-sectional shape, the bending rigidity may be obtained by a three-point bending test, similarly to the measurement of the bending rigidity of a general golf shaft.

  The two stretchable bodies 20 a and 20 b that stretch and contract along the first virtual plane P <b> 1 are fixed to the wide surfaces on both sides of the base end portion of the first flexible portion 14 with a fastener 13. Further, the other two stretchable bodies 20 c and 20 d that stretch and contract along the second virtual plane P <b> 2 are fixed to the wide surfaces on both sides of the proximal end portion of the second flexible portion 16 with the fasteners 13.

  The sports training tool 1 ″ ″ can be used in the same manner as the sports training tool 1 ″ shown in FIGS. 5 and 6. The first flexible portion 14 and the first flexible portion 16 are respectively main along the first virtual plane P1 and the second virtual plane P2 which are the expansion and contraction directions of the expansion bodies 20a, 20b, 20c, and 20d. Since it is comprised so that bending deformation may arise, the expansion-contraction of each expansion-contraction body 20a, 20b, 20c, 20d by an efficient swing is promoted, and the acquisition can be made still easier.

  The sports training device of each of the above embodiments is particularly suitable for golf swing practice, but various sports (for example, baseball, tennis, badminton, ice cream) that are desired to make maximum use of the bending of the rod-shaped body. Hockey, kendo, fencing, fishing, etc.) can also be used preferably.

DESCRIPTION OF SYMBOLS 1 Sports training tool 10 Rod-shaped body 12 Grasping part 14 1st flexible part 16 2nd flexible part 20 Elastic body 30 Weight body P1 1st virtual plane P2 2nd virtual plane

Claims (7)

A rod-shaped body having a grip portion on the proximal end side, and a telescopic body having one end side fixed to the rod-shaped body,
The stretchable body is composed of a long elastic body, and the other end side contracts in a spiral shape by a restoring force ,
A plurality of the elastic bodies are arranged in the circumferential direction of the rod-shaped body, and each is a sports training tool that curves in a direction away from the rod-shaped body . The sports exercise device according to claim 1, wherein the stretchable body is disposed on both sides of the rod-shaped body so as to stretch and contract along a first virtual plane including an axis of the rod-shaped body. The telescopic body, on both sides of the rod-shaped body of claim 2 which is further arranged to stretch along a second imaginary plane that intersects the axis of the rod-shaped body and the first virtual plane Sports exercise equipment. The rod-shaped body includes a first flexible portion in which a main bending deformation occurs along the first virtual plane, and a main bending deformation provided on a distal end side with respect to the first flexible portion. The sports training device according to claim 3 , further comprising a second flexible portion that occurs along a plane. The sports exercise tool according to claim 1 , wherein the elastic body includes a weight body on the other end side. A method of using the sports training tool according to claim 2 ,
Swinging up the rod-shaped body so as to extend one of the stretchable bodies arranged along the first virtual plane;
And a step of swinging down the rod-like body so as to extend the other of the stretchable bodies arranged along the first virtual plane. A method of using the sports training tool according to claim 3 ,
After extending one of the elastic bodies arranged along the first virtual plane, the rod-like body is swung up so as to extend one of the elastic bodies arranged along the second virtual plane And steps
After extending the other of the elastic bodies arranged along the second virtual plane, the rod-like body is swung so as to extend the other of the elastic bodies arranged along the first virtual plane. A method for using a sports practice tool comprising a step of lowering.

Images