JP2015043791A - Swing training tool of tennis racket, table tennis racket, baseball bat or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swing training tool for acquiring an ideal swing orbit of tennis, table tennis, baseball, golf or the like, and acquiring a correct way of using a wrist.SOLUTION: A swing training tool of tennis, table tennis, baseball, golf or the like comprises a striking part 1 or a grip part 2 having a weight or the like on the tip instead of the striking part 1, and a flexible part 3 constituted of an elastic material of synthetic rubber or the like fastened or fastened and inserted on a rear end part of the grip part 2.

Description

The present invention relates to a swing practice tool for acquiring ideal swing trajectories such as tennis, table tennis, and baseball.

Conventional training equipment for tennis, table tennis and baseball, golf, etc. is to attach a weight to an ordinary tennis racket, table tennis racket and baseball bat, etc. to improve the swing speed, There are practice tools that improve the swing speed by attaching a frame that is heavier than a golf club or a bowl-like frame that generates a large air resistance on the striking surface in addition to the weight as in Patent Document 1.

Further, a golf practice tool having a flexible part at the rear end part of the grip part, and a golf practice tool that allows the wrist to be returned in a golf swing by bending the flexible part at the rear end of the grip is disclosed in Patent Literature 2 is known. This technology is a golf swing practice tool that provides a flexible portion that bends at the rear end of a grip portion to learn to turn the wrist.

However, training equipment such as tennis, table tennis, baseball, and golf as disclosed in Patent Document 1 can improve the swing speed with the practice equipment intended to improve the muscular strength and the swing speed. In addition to the swing speed, it is necessary to learn an ideal swing trajectory, and the practice tool of Patent Document 1 is not effective for learning an ideal swing trajectory.

Further, in the golf practice tool of Patent Document 2, since the flexible portion at the rear end of the grip portion is bent without being bent, the joint portion between the flexible portion and the grip portion has a structure in which it is difficult for force to be transmitted. In particular, the flexible portion and the grip portion transmit little bending force. Therefore, it becomes difficult to synchronize the movement of the flexible part and the grip part, and the right wrist (in the case of right-handed) can be returned regardless of the movement of the flexible part. It is difficult to learn. Therefore, the golf practice tool of Patent Document 2 is not effective for learning an ideal swing path.

JP-A-2005-137396

JP-A-11-169497

An object of the present invention is to provide a practice tool that makes it easy to learn ideal swing trajectories such as tennis, table tennis, baseball, and golf in view of the above-described conventional drawbacks.

In learning ideal swing trajectories such as tennis and table tennis, it is important and desirable to learn how to use the right hand of the dominant hand to operate the racket.
Also, in learning ideal swing trajectories such as baseball and golf, it is important and desirable to learn how to use the correct wrist.

Therefore, the swing practice tool of the present invention is provided with a flexible portion made of an elastic material at the rear end portion of a grip portion of a racket, bat, golf club, etc. in tennis, table tennis, badminton, baseball, golf, etc. It is easy to learn the ideal swing trajectory by learning how to use the correct wrist along with learning the ideal swing trajectory of tennis, table tennis, baseball, golf, etc. The purpose is to provide a swing exercise tool.

The present invention is a swing practice device such as a tennis racket, a table tennis racket, a baseball bat, and a golf club, and is fixed or inserted and fixed to a grip part having a hitting part or a grip part having a weight and a rear end of the grip part. It is characterized by comprising a flexible part made of a resilient material.

The flexible part is made of a single elastic material so that the deformation of the flexible part is uniformly curved as a whole, or a plurality of elasticity with different hardness according to the user's preference. It may be made of a material or made of an elastic material having a different thickness so that the rigidity of the flexible portion is partially greatly changed and the degree of bending deformation of the flexible portion is partially changed. .

In tennis or table tennis, when swinging with a racket that uses a normal high-rigidity grip, if you move off the ideal trajectory, it is difficult to correct the swing direction on the way. Easy to move.

  Even when swinging with a normal baseball bat golf club, the left hand (when right-handed) is made of a rigid material, so the left hand that leads the swing during the swing (when right-handed) ) Moves out of the ideal swing trajectory, the movement and force are transmitted to the right hand part through the grip, the right hand part cannot move as intended, and both hands are likely to make a wrong movement. . Therefore, it becomes difficult to perform an ideal swing trajectory swing.

When the idea of the present invention is applied to a racket such as tennis or table tennis, the grip part of the racket with the thumb, index finger and middle finger part is a normal structure grip, and the grip part to be gripped with the little finger or ring finger is used. By using the grip of the flexible portion 3, the wrist angle can be easily changed by utilizing the property that the angle of the wrist for racket operation bends in all directions and the restoring force of the flexible portion 3, and the swing direction Can also be changed easily. As a result, the swing trajectory is corrected during the swing, and the swing passing through the ideal swing trajectory can be easily performed. Therefore, it is possible to learn the correct use of the wrist by recognizing the ideal swing trajectory and knowing the correct use of the wrist from the experience while repeating the swinging and the like with the product of the present invention.

In addition, when the idea of the present invention is applied to baseball and golf bats and golf clubs, the flexible part 3 of the grip part of the left hand (in the case of right hand) of the baseball bat and golf club is elastically deformed in all directions. If the left hand makes a wrong movement, the angle of the wrist can be easily changed and the swing direction can be easily made by using the bending property and the restoring force of the flexible part 3. Can be changed. This makes it possible to easily make a swing through an ideal swing path by correcting the swing path during a swing. Therefore, by repeating swinging with the present invention in baseball and golf etc., it becomes easier to learn from the experience of the correct left hand to synchronize with the right hand while learning the ideal swing trajectory, You can learn how to use the right wrist.

It is sectional drawing of the table tennis racket of this invention which provided unevenness in the grip part and the flexible part. It is sectional drawing of the tennis racket of this invention which applied the single elastic member to the flexible part. It is sectional drawing of the baseball metal bat of this invention which applied the single elastic member to the flexible part. It is sectional drawing of the tennis racket of this invention which applied the some elastic member to the flexible part. It is sectional drawing of the tennis racket of this invention which provided the hollows, such as an unevenness | corrugation, in the elastic member of a flexible part. It is sectional drawing of the baseball metal bat of this invention which provided the truncated cone-shaped cavity of the elastic member of a flexible part. It is a top view of the metal bat of this invention which uses a different color for the coating | coated part of a flexible part and a grip part. It is a top view of the baseball bat of this invention which used the weight for the hit | damage part. It is sectional drawing of the golf club of this invention which applied the single elastic member to the flexible part.

(Overall configuration)
The practice tool of the present invention has an extension shaft extending from the rear end of the grip portion 2 having the hitting portion 1 or the grip portion 2 fixed or fixedly inserted to the rear end of the grip portion 2 when having a weight instead of the hitting portion. It is mainly composed of a flexible part 3 and a covering part 4 that covers the flexible part 3 and a part of the outer peripheral part of the grip part 2.
In the practice tool, the covering portion 4 may include a covering portion like a normal racket or bat, but the covering portion 4 may be omitted and the covering portion may not be provided.

(Join the grip part and flexible part)
In the case of using a structure in which there is no hollow portion in the grip portion, such as a table tennis racket or a wooden bat, in order to improve the fixing strength of the grip portion 2 and the flexible portion 3, the grip portion 2 as shown in FIG. The bonding surface of the flexible part 3 may be provided with irregularities or the like to increase the surface area of the bonding surface and improve the fixing strength. Further, when the grip portion has a hollow portion like the metal bat and golf club of FIGS. 6 and 9, the flexible portion 3 may be fixedly inserted into the grip portion 2 to improve the fixing strength.

(Properties of flexible part)
The flexible portion 3 can be bent and deformed in any direction during the swing, and is configured by a material that restores the coaxial shape of the grip portion 2 when the load is lost. For example, a material such as a synthetic rubber or plastic that has a property of an elastic body having a bending force and a restoring force may be used.
As shown in FIGS. 1, 2, 3, and 9, by using a single elastic material having a normal grip shape and no cavity for the entire length of the flexible portion, the flexible portion 3 having uniform rigidity over the entire length can be obtained. By doing so, the deformation of the flexible portion may be curved and deformed uniformly. In addition, there are grips such as tennis rackets, table tennis rackets, and golf clubs that have a grip section that increases in the rear end direction or a grip section that has a different shape, but the thickness of the grip changes greatly in this invention. The change in rigidity due to the difference in thickness is considered to be so small that it is not necessary to consider it. Therefore, the rigidity of the flexible part 3 of the flexible part 3 is treated as being equal, and the deformation of the flexible part is also treated as being curved and deformed equally.

Further, as shown in FIG. 4, the flexible portion 3 is made of an elastic material having different rigidity for the flexible portion 3 a close to the grip portion 2 and the flexible portion 3 b at the rear end portion. You may make it change greatly. In addition, the flexible portion 3 can be produced by using a plurality of elastic materials having different hardness according to the user's preference, or by combining a plurality of elastic materials having different positions, lengths, directions, etc. The bending deformation may be increased or decreased in accordance with the user's preference by changing the rigidity of the portion partially or depending on the direction.

  Furthermore, a cylindrical hollow portion may be provided inside the flexible portion 3 so that the thickness of the flexible portion is uniform, and the curved portion may be deformed evenly. However, as shown in FIGS. The thickness of the flexible part 3 is changed by providing a hollow part such as an unevenness, a slit, a truncated cone, or an elliptical column or an elliptical truncated cone inside the part 3, and the rigidity of the flexible part 3 is partially or depending on the direction. You may make it carry out curve deformation according to a user's liking by the method of changing rigidity. The direction of the unevenness and the slit may be in the horizontal direction, the vertical direction, or the oblique direction according to preference.

It should be noted that the rigidity of the flexible portion 3 or the change in the size is not desired to be an extremely rigid change that is bent and deformed so as to be bent in the portion to be joined to the grip portion 2 or in the flexible portion 3. In each of the practice tools of the present invention, the flexible portion 3 has a rigidity that is curved so as to be curved in accordance with the rigidity of the flexible portion 3 so that the restoring force of the flexible portion 3 can be experienced during the swing. It is desirable to ensure the size.

  The length of the flexible portion 3 is determined in a range of about 40 mm to 250 mm in consideration of the grip position, the physique difference, and the type of exercise tool desired by each user.

(Grip covering part)
The covering portion 4 that covers a part of the grip portion 2 and the flexible portion 3 to form a grip is made of a flexible material made of synthetic rubber or the like that is attached to a grip such as a normal tennis racket or a baseball bat. As long as it is used, the color of the part of the grip part 2 and the color of the covering part 4 covering the flexible part 3 may be the same color. However, as shown in FIG. The color of the covering part 4b covering a part of the grip part 2 and the color of the covering part 4a of the flexible part 3 may be different so that the boundary of the flexible part 3 can be visually recognized from the outside.

(Configuration of striking part and grip part)
Tennis rackets, table tennis rackets, baseball bats, golf clubs, etc., each having a hitting surface, or a tennis racket having a weight at the tip of the shaft without having a hitting surface, table tennis rackets, baseball bats, golf clubs, etc. Swing practice tools with each grip length may be used.

  As described above, the swing training device according to the present invention facilitates the use of the flexure and the restoring force of the flexible portion 3 at the rear end portion of the grip, so that rackets, bats, golf clubs for tennis, table tennis and baseball, golf, etc. In this swing, in tennis or the like, it becomes easy to learn how to use the wrist for operating the racket. In addition, in the case of baseball, golf, etc., it becomes easy to learn how to use the right wrist of the left hand (in the case of right-handed) that leads the swing.

1 striking part 2 grip part 3 flexible part 4 covering part

Claims (5)

A swing practice tool comprising: a grip portion having a striking portion or a weight; and a flexible portion made of an elastic material fixed or inserted and fixed to a rear end of the grip portion. The swing practice tool according to claim 1, further comprising a flexible portion that uses a single elastic material having no cavity in the flexible portion over its entire length. 3. A flexible part using a single elastic material having a cylindrical cavity in the entire inner length of the flexible part, in addition to the flexible part in claim 2. Swing practice tool as described in
The swing practice tool according to claim 1, further comprising a flexible part that partially uses an elastic material having different rigidity, in addition to the flexible part according to claim 2. In addition to the flexible part of claim 3, the flexible part is provided with a flexible part that uses an elastic material made of a single material that has cavities of partially different shapes and sizes inside the flexible part. The swing practice tool according to claim 1.

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