JP6435230B2 - Grip exercise equipment - Google Patents

Description

  The present invention relates to a grip training device for learning badminton's Eastern grip.

  As shown in FIG. 8, the badminton racket 100 has a substantially elliptical ring-shaped frame 101, a racket surface 102 formed by a gut stretched on the inner peripheral side of the frame 101, and one end connected to the frame 101. And a handle 104 connected to the other end of the shaft 103.

  When this racket 100 is given to a badminton beginner, many people hold the racket 100 with a Western grip (see FIG. 8A). The Western grip is a grip for gripping the handle 104 so as to grip a fist. When the hand holding the racket 100 is extended in a state where the racket 100 is raised, the racket surface 102 becomes substantially parallel to the body. The forehand that hits the shuttle on the hand side with the racket 100 on the racket surface 102 facing the front is easy to hit and is a grip that is easy to hold.

  However, in Western grip, it is difficult to hit a back hand that hits the shuttle on the opposite side of the hand holding the racket 100 on the back of the racket surface 102. In badminton, grips are frequently changed according to shots such as forehand and backhand, but it is difficult to shift from Western grips to other grips. In addition, there is a drawback that the wrist and elbow are burdened and easily injured.

  For this reason, it is recommended to hold the racket 100 with an Eastern grip that grips the handle 104 so as to hold a knife (see FIG. 8B). The Eastern grip is a grip in which the handle 104 is gripped with the thumb and forefinger, and the middle finger, the third finger, and the little finger are lightly gripped by the handle 104 so that there is a gap between the index finger and the middle finger. In the Eastern grip, when the hand holding the racket 100 is extended forward with the racket 100 standing, the racket surface 102 is substantially orthogonal to the body.

  The Eastern grip is a basic grip of all grips, and can be transferred to another grip with a slight change in finger placement. In addition, since a rational swing can be performed by making maximum use of the movable range of the wrist, there is an advantage that there is less burden on the wrist and elbows and it is less likely to be injured.

  However, the Eastern grip is difficult to hold for beginners because it is harder to hold than the Western grip. In addition, it may be difficult for a competitor who has a Western grip to have a racket to correct the grip.

  Therefore, a badminton practice assisting tool for learning an Eastern grip has been proposed (see Patent Document 1). This badminton practice assisting tool is provided with a rod-like projection indicating the location of the base of the thumb when the handle is held.

  However, the above technique only shows the position of the base of the thumb when holding the handle, not how to hold the index finger or other fingers, so it is not sufficient to learn Eastern grip. It was.

JP 7-328161 A

  Therefore, in view of the above circumstances, an object of the present invention is to provide a grip training device capable of learning badminton's Eastern grip.

The grip training device according to the invention of claim 1 is:
“With a band-shaped body made of elastic material,
The handle of the badminton racket is detachably inserted, and two handle insertion portions provided on the main body are separated by a length around the index finger.

  The “elastic body” may be a natural rubber, a synthetic rubber sponge, or a sheet.

  The “length around the finger of the index finger” refers to about 4 cm to 6 cm, which is the length around the finger of a general index finger.

  The “handle insertion portion” may be a cut made in a part of the main body of the grip training device, or a through hole such as a rectangle, an ellipse, or a circle.

  The grip training device of this configuration is used by inserting a handle of a badminton racket (hereinafter referred to as a racket) into two handle insertion portions provided in the main body. Then, the handle is gripped with the index finger inserted through the through hole formed by the main body and the handle. In this state, since the placement of the index finger is regulated by the grip training device, the racquet can be held with the Eastern grip.

Grip training device of the above configuration,
It can be used attached to the "La ket surface direction parallel to the wide plate-shaped flat plate is a handle" badminton racket handle.

  The “racquet surface” refers to a surface formed by a gut stretched on the inner peripheral side of the racket frame.

  The grip training device of this configuration is used by inserting a flat handle into two handle insertion portions. Similarly to the above, the grip training device of this configuration can hold the racket with the Eastern grip by restricting the placement of the index finger by inserting the index finger through the through hole formed by the main body of the grip training device and the handle.

  Furthermore, the flat handle is easy to hold with a wide surface parallel to the palm. That is, it is easy to hold the racket with an Eastern grip that grips the handle with the racket surface substantially orthogonal to the body.

Grip training device of the above configuration,
It can be used attached to "the width of the flat handle comprises a pair of detachable handles is detachably attached to a wide double-sided" racket handle for badminton.

  The “pair of attachment / detachment handles” can be portions on both sides of the handle of an octagonal prism or a cylindrical racket divided into three parallel to the racket surface. In this case, the central portion is a flat plate handle. And it can return to the shape of the original handle by attaching a detachable handle to both sides of a flat handle.

  The racket used in the grip training device of this configuration includes a pair of detachable handles that can be attached to both sides of the flat handle. And it can be used with only a flat handle, or with a pair of detachable handles attached.

  As described above, as an effect of the present invention, it is possible to provide a grip training apparatus that can learn badminton's Eastern grip.

It is a front view of the main body of the grip practice instrument which is 1st embodiment of this invention. 1A is a rear view, and FIG. 1B is a side view of the grip training device of FIG. FIG. 1A is a front view and FIG. 2B is a side view for explaining how to use the grip training device of FIG. It is a front view of the main body of the grip practice instrument which is 2nd embodiment of this invention. It is a front view of the main body of the grip practice instrument which is 3rd embodiment of this invention. (A) is a side view of a badminton racket used in a grip training device according to a fourth embodiment of the present invention, (b) is a side view when a detachable handle is removed, and (c) is a fourth embodiment. It is a side view of a certain grip training device. (A) is an AA line expanded sectional view of Drawing 6 (a), and (b) is an BB line expanded sectional view of Drawing 6 (b). (A) of the badminton racket is an explanatory view for explaining the Western grip, and (b) is an explanatory view for explaining the Eastern grip.

  Hereinafter, the grip practice implements 1-4 which are 1st embodiment thru | or 4th embodiment of this invention are demonstrated using FIGS.

  As shown in FIG. 1, the main body 11 of the grip training device 1 of the first embodiment is formed of an elastic body in a band shape, and two pieces through which a handle of a badminton racket (hereinafter referred to as a racket) is inserted. The handle insertion part 12 is provided apart in the length direction of the main body 11.

  The main body 11 is formed of a urethane rubber sponge. Since the main body 11 is curved when the grip training device 1 is used as described later, it is preferable to form the main body 11 with a soft member. The main body 11 can also be formed of a synthetic rubber such as nitrile rubber, EPDM rubber or silicone rubber, or a natural rubber sponge or sheet. The thickness can be 2 mm to 5 mm, the width can be 1 cm to 3 cm, and the length can be 10 cm to 16 cm.

  Each of the two handle insertion portions 12 is formed by penetrating circular holes 14 at both ends of a cut 13 obtained by cutting the main body 11 in the length direction. Due to the presence of the circular hole portion 14, the main body 11 is not easily torn from the notch 13 when the handle insertion portion 12 is expanded and the racket handle is inserted.

  The two handle insertion portions 12 are provided with a size that allows the handle to be inserted and held. Specifically, the length of the handle insertion part 12 can be 3 cm to 5 cm. The length between the two handle insertion portions 12 is about the length of the circumference of the index finger (4 cm to 6 cm).

  As shown in FIG. 2, the racket 50 used in the grip training device 1 of the present embodiment has a substantially elliptical ring-shaped frame 51 and a racket surface formed by a gut stretched on the inner peripheral side of the frame 51. 52, a shaft 53 having one end connected to the frame 51, and a substantially octagonal columnar handle 54 connected to the other end of the shaft 53. The handle 54 may be cylindrical. Here, the badminton racket has a total length of 68 cm or less and a width of 23 cm or less is stipulated in the rules of competition adopted by the Japan Badminton Association. In addition, the handle has a thickness of 7.8 cm to 8.4 cm (the diameter of the handle is 2.5 cm to 2.7 cm when the handle cross-sectional shape is regarded as a circle), and three sizes are generally commercially available. Has been.

  As shown in FIG. 2, the grip training device 1 of the present embodiment is used with the handle 54 of the racket 50 inserted through the two handle insertion portions 12 of the main body 11. And the two handle | steering-wheel insertion parts 12 are approached, and the main body 11 is curved. Here, the through hole formed by the curved main body 11 and the handle 54 is referred to as a finger insertion portion 15. A portion of the handle 54 that is sandwiched between both ends of the main body 11 and is opposite to the finger insertion portion 15 is referred to as a thumb contact portion 16. The main body 11 is attached to the handle 54 so that the main body 11 forming the finger insertion portion 15 is positioned on the racket surface 52 side. That is, the finger insertion part 15 is attached to the side where the index finger is located when the handle 54 is gripped by the Eastern grip.

  As shown in FIG. 3, the grip training device 1 of the present embodiment holds the handle 54 in a state where the index finger is inserted into the finger insertion part 15 and the thumb is in contact with the thumb contact part 16. By inserting an index finger through the finger insertion part 15, the palm of the hand holding the handle 54 becomes parallel to the racket surface 52. That is, the racket 50 can be held by an Eastern grip that holds the handle 54 with the racket surface 52 substantially orthogonal to the body.

  Further, by inserting an index finger through the finger insertion part 15 and abutting the thumb against the thumb contact part 16, the arrangement of the index finger and the thumb is regulated. Thereby, the arrangement | positioning of the finger | toe of an Eastern grip can be grasped | ascertained.

  Therefore, the Eastern grip can be acquired by using the grip training device 1.

  Further, the main body 11 of the grip training device 1 is formed of an elastic body and easily deforms. Therefore, even if the index finger is moved when changing the grip, the main body 11 is deformed and the change of the grip is not hindered.

  Furthermore, the main body 11 of the grip training device 1 can be attached to an arbitrary position of the handle 54 by moving the handle insertion portion 12. Thereby, an attachment position can be changed according to the magnitude | size of the person's hand to use.

  In addition, the main body 11 of the grip training device 1 is detachably attached to the racket 50. For this reason, when a plurality of rackets are owned, they can be used by being replaced with other rackets.

  As shown in FIG. 4, the grip training device 2 of the second embodiment is different from the grip training device 1 of the first embodiment in the shape of the handle insertion portion 22.

  Specifically, the band-shaped main body 21 is provided with a handle insertion portion 22 that is a through-hole having a rectangular short side formed into an arc, separated by a length around the index finger. The handle insertion part 22 is provided in a size that allows the handle of the racket to be inserted and held, similarly to the handle insertion part 12 of the grip training device 1 of the first embodiment. For example, the handle insertion portion 22 can have a width of 3 mm to 5 mm and a length of 3 cm to 5 cm.

  In the grip training device 2 of the present embodiment, the handle can be easily inserted because the handle insertion portion 22 has a large opening. Further, since both ends of the handle insertion part 22 are arc-shaped, the main body 21 is not easily torn when the handle insertion part 22 is expanded and the handle is inserted.

  The grip training device 2 of the present embodiment is used with the handle of the racket inserted through the two handle insertion portions 22 of the main body 21, similarly to the grip training device 1 of the first embodiment. Then, the two handle insertion parts 22 are brought close to each other to bend the main body 21, and the main body 21 part forming the finger insertion part is positioned on the racket surface side.

  Insert the index finger into the finger insertion part of the grip exercise device 2 above, hold the handle with the thumb in contact with the thumb contact part, and the arrangement of the index finger and thumb is restricted, and the Eastern grip has a racket Can do. Therefore, the grip training device 2 of the present embodiment can learn the Eastern grip as well as the grip training device 1 of the first embodiment.

  As shown in FIG. 5, the grip training device 3 of the third embodiment is different from the grip training devices 1 and 2 of the first embodiment and the second embodiment in that it includes a shape of the main body 31 and a grip portion 33.

  Specifically, the main body 31 of the grip training device 3 has a dumbbell shape in which a circular portion 31b is connected to both ends of a strip portion 31a. And the handle | steering-wheel insertion part 32 which is a circular through-hole is provided in the circular part 31b. By making the handle insertion part 32 circular, it is easy to insert the handle of the racket. Further, when the handle is inserted, the main body 31 is not easily torn from the handle insertion portion 32. The handle insertion portion 32 is provided with a size that allows the handle to be inserted and held. For example, the diameter of the handle insertion part 32 can be 1.5 cm to 2.5 cm.

  Further, a grip portion 33 extends from the circular portion 31 b of the main body 31. Thus, when the handle of the racket is inserted into the handle insertion part 32, the main body 31 can be moved by holding the holding part 33, and it is easy to attach and remove.

  The grip training device 3 of the present embodiment is used with the handle of the racket inserted through the two handle insertion portions 32 of the main body 31 in the same manner as the grip training devices 1 and 2 of the first embodiment and the second embodiment. The Then, the two handle insertion portions 32 are brought close to each other to bend the main body 31, and the main body 31 portion forming the finger insertion portion is positioned on the racket surface side.

  Insert the index finger into the finger insertion part of the grip training device 3 and hold the handle while the thumb is in contact with the thumb contact part. Can do. Therefore, the grip training device 3 of the present embodiment can learn the Eastern grip as well as the grip training devices 1 and 2 of the first embodiment and the second embodiment.

  As shown in FIGS. 6 and 7, the grip training device 4 of the fourth embodiment is a flat plate handle 65 having a wide width in the direction in which the handle of the racket 60 inserted into the handle insertion portion is parallel to the racket surface 62. It has become.

  More specifically, the racket 60 includes a substantially elliptical ring-shaped frame 61, a racket surface 62 formed by a gut stretched on the inner peripheral side of the frame 61, and a shaft 63 having one end connected to the frame 61. And a flat plate handle 65 connected to the other end of the shaft 63, and a pair of flat plate attachment / detachment handles 66 and 67 which are detachably attached to both wide surfaces of the flat plate handle 65.

  As shown in FIG. 7, the flat handle 65 has a rectangular shape with a cross section orthogonal to the axial direction and having a wide width in a direction parallel to the racket surface 62.

  The detachable handles 66 and 67 have a flat plate shape in which the length is equal to the flat plate handle 65 and the cross section orthogonal to the axial direction is trapezoidal. The widths of the side surfaces 66a and 67a corresponding to the lower base side of the trapezoidal cross section are set to be equal to the width of the wide side surface 65a parallel to the racket surface 62 of the flat plate handle 65.

  The flat handle 65 and the pair of attachment / detachment handles 66 and 67 are formed by cutting a general substantially octagonal prism handle 64 in the axial direction parallel to the racket surface 62 and dividing it into three parts. That is, when the side surfaces 66 a and 67 a of the detachable handles 66 and 67 are brought into contact with the side surface 65 a of the flat plate handle 65, the handle 64 can be returned. In this state, the detachable handles 66 and 67 can be firmly fixed to the flat handle 65 by winding a polyurethane tape.

  The grip training device 4 of the present embodiment is used with a flat handle 65 inserted through two handle insertion portions of the main body 41. Then, as shown in FIG. 6C, the two handle insertion portions are brought close to each other to bend the main body, and the main body 41 portion forming the finger insertion portion 45 is positioned on the racket surface 62 side. Note that a polyurethane tape may be wound around the flat handle 65. In this case, since the tape is flexible, the tactile sensation of the flat handle 65 hitting the hand becomes soft and can be easily held.

  By inserting an index finger into the finger insertion part 45 of the grip training device 4 and holding the flat handle 65 in a state where the thumb is in contact with the thumb contact part 46, the arrangement of the index finger and the thumb is restricted, and the Eastern grip is used. Can have racket 60.

  Further, the flat handle 65 is easy to grip in a state where the wide side surface 65a parallel to the racket surface 62 is parallel to the palm. That is, it is easy to hold the racket 60 with an Eastern grip that holds the flat plate handle 65 with the racket surface 62 substantially orthogonal to the body.

  Further, since the flat handle 65 is thinner than the handle 64, even a child with a small hand can easily grasp it. Children with small hands may find it difficult to hold a handle 64 having a general thickness with an Eastern grip, but even in such a case, they can learn Eastern grip by using a racket 60 having a flat handle 65. Can be made.

  In addition, by attaching the detachable handles 66 and 67 to the flat handle 65, the handle 64 can be returned to the substantially octagonal columnar handle 64. Thereby, the child and the player who have learned the Eastern grip can return the shape of the handle 64 and continue to use the racket 60.

  The attachment / detachment handles 66 and 67 have strip-like protrusions extending in the axial direction on the side surfaces 66a and 67a that come into contact with the flat plate handle 65, and the flat handle 65 has a groove that fits the strip-like projection on the wide side surface 65a. You may do it. In this case, the positions of the attachment / detachment handles 66 and 67 are less likely to be displaced when attached to the flat plate handle 65.

  Moreover, the main body 41 of the grip training device 4 of the present embodiment can have the same configuration as the main bodies 11, 21, 31 of the grip training devices 1 to 3 of the first to third embodiments.

  In addition, the grip training device 4 of this embodiment can be used only with the racket 60 having the flat handle 65. In this case, the flat handle 65 can be formed by cutting or cutting the handle of an octagonal columnar or cylindrical racket. Alternatively, the racket handle may be formed in a flat plate shape in advance.

  As described above, the flat handle 65 is easy to grip in a state where the wide side surface 65a parallel to the racket surface 62 is parallel to the palm. That is, it is easy to grip the flat plate handle 65 with the racket surface 62 substantially orthogonal to the body. Therefore, the Eastern grip can be learned by using the racket 60 having the flat handle 65.

  Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to the above-described embodiments, and various improvements and design changes can be made without departing from the scope of the present invention. It is.

  For example, a plurality of grip exercise instrument bodies can be attached to the racket. Specifically, the main body is attached near the center and the lower end of the handle. Then, the index finger is inserted into the finger insertion portion of the main body attached to the central portion of the handle, and the handle is grasped with the little finger inserted into the finger insertion portion of the main body attached near the lower end of the handle. Thereby, arrangement | positioning of the finger | toe of an Eastern grip can be grasped | ascertained more.

1, 2, 3, 4 Grip practice device 11, 21, 31 Main body 12, 22, 32 Handle insertion part 50, 60 Racket 51, 61 Frame 52, 62 Racket surface 53, 63 Shaft 54, 64 Handle 65 Flat handle 66, 67 Detachable handle

Claims (1)

A band-shaped body formed of an elastic body;
A grip practicing instrument, wherein a handle of a badminton racket is detachably inserted, and includes two handle insertion portions provided in the main body at a distance of about the length of the index finger.

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