JPH10165550A - Golf swing training device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a golf swing training device which enables a user to train swings in narrow spaces in rooms, etc., and enables the user to train 'the rolling of the left hand', 'a weight shift', 'a takeaway', 'the initial moving down from the top', 'the correction of the swing in real time', etc., and eventually to have a better score. SOLUTION: This golf swing training device has a grip 1, a head 2 which has a plane 8a which is disposed at the front end of the grip 1, a gyoroscope 14 which is disposed at the head 2 and has a revolving shaft 11 perpendicular to the plane 8a, a motor 10 which is disposed at the head 2 and rotationally drives the gyoroscope 14 and a battery 24 which is connected via a switch to the motor 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf swing training device which can be practiced even in a small place such as indoors and can naturally acquire a correct swing.

[0002]

2. Description of the Related Art With the spread of golf, a number of training devices have been developed. For example, in order to be able to practice swinging even in narrow places such as indoors, a short shaft is fixed to the grip, and a weight that imitates a club head is provided at the tip of this shaft. An electronic golf training apparatus and the like for detecting a face angle and analyzing a stroke habit and correcting the stroke to an appropriate form are known. Alternatively, a swing straightener for restraining an arm with a straightener and straightening to an ideal swing, a device for improving muscle strength, and the like are known. Golfers purchase these training devices and orthotics and practice in search of the ideal swing.

As the swing straightening device, for example, as disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-33879, a gyroscope is rotatably attached to the tip of a club shaft via a bearing. When the real club is actually swung in a state where is rotated by the motor, the swing is performed in the same manner. And when the practice club deviates from the accurate rotation plane, the gyroscope tilts the rotation axis to keep the direction constant, so your hands,
The resistance is added to the arm, and it can be seen that the arm deviates from the trajectory of the accurate rotation plane swing.

[0004]

However, a conventional training device developed to be able to practice swinging even in a small place such as indoors can swing and practice in the same manner as a real club, but a short club can be used. It is a training device that only shakes. In other words, there is nothing to feel in the body between the back swing and the follow-through, and it is not possible to check by itself whether the moment of impact is correct or not.
Therefore, even if the swing is repeated many times, it cannot be checked whether or not the swing is an ideal swing, and the user feels uneasy.

A swing straightening device disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-33879 is a golf swing practice device in which a swing trajectory is captured on a rotation plane, and a club head moves out of the rotation plane during a swing. When the swing has a wave-like trajectory, the gyroscope's rotation axis keeps its direction constant, adding resistance to the hands and arms, causing the club head to move out of the plane of rotation for the trainee. It is merely an attempt to get a precise swing of the plane of rotation that does not add resistance to the hands and arms.

The present invention has been made in view of the above circumstances, and its purpose is to be able to practice swinging even in a small place in a room, and to practice "rehearsing left hand return" for a right-handed person. "Weight transfer practice", "Take back practice", "Top turn practice", "Body turn practice", "Real-time swing correction practice"
It is an object of the present invention to provide a golf swing practice device that can increase the score.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a grip, a head having a flat surface provided at the tip of the grip, and a head provided on the head. A gyroscope having a rotation axis perpendicular to the plane, a motor provided on the head for driving the gyroscope to rotate, and a battery connected to the motor via a switch. You have a golf swing exerciser.

According to a second aspect, the center of gravity of the head according to the first aspect is:
The grip is located behind the extension of the axis of the grip. A third aspect of the invention is characterized in that the head of the first aspect has a rectangular flat surface on one side of the head main body in the swing direction.

According to a fourth aspect of the present invention, there is provided a grip, a head having a plane provided at a tip portion of the grip, a gyroscope provided on the head and having a rotation axis perpendicular to the plane, and The gyroscope includes a motor provided to rotate the gyroscope and a battery connected to the motor via a switch, and generates sound by inertia acting on the gyroscope during a swing.

According to a fifth aspect of the present invention, the sound of the fourth aspect is a sliding noise in which the gyroscope comes into contact with a member adjacent thereto due to bending of the rotating shaft. According to a sixth aspect, the member according to the fifth aspect includes a plurality of members having different shapes or materials, and the gyroscope is used when the head is rotated around the axis of the grip and when the head is rotated around the axis of the grip. And a gyroscope contacts the member to generate an abrasion sound, and the abrasion sound is a different sound depending on the member.

[0011] A seventh aspect of the present invention provides a grip, a head having a flat surface provided at the tip of the grip, a gyroscope provided on the head and having a rotation axis perpendicular to the flat surface, A motor provided to rotationally drive the gyroscope, a battery connected to the motor, a plurality of switches provided adjacent to the gyroscope and turned on / off by a tilt of the gyroscope, and a switch connected to the switch A buzzer that generates a sound when the head is turned on, and when the head rotates around the axis of the grip and in a direction perpendicular to the axis of the grip, a moment is generated in the gyroscope and the gyroscope turns on the switch. Is turned on, and the buzzer generates a sound.

By providing a gyroscope on the head, the inclination of the plane of the head changes when the user grips and swings, so that a force perpendicular to the rotation axis acts due to the gyroscope effect of the gyroscope according to the change. That power is transmitted to the arm holding the grip. Swing while feeling this power and sound before and after impact,
By swinging so as to maintain the correct plane of the head at the moment of impact, the correct swing can be naturally acquired.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a first embodiment of a golf swing practice device. This golf swing practice device basically includes a grip 1 and a head 2 provided at a distal end portion of the grip 1. ing. The length of the grip 1 is slightly shorter than the grip of a normal golf club, and a rubber or leather grip cylinder 4 is provided outside a metal pipe 3 having a diameter of 200 to 210 mm and a diameter of about 15 mm.
Are fitted.

The head 2 has a head body 5 made of a rectangular plate-like body made of a synthetic resin or a light metal material, and the length a of the head body 5 is about 250 mm and the width b is about 250 mm. 70 mm, the thickness c is about 20 mm, and a plate 6 made of a flat metal is detachably fixed to the front surface of the head main body 5 by a plurality of screws 7 and the like, and forms a plane 8a facing the swing direction at the time of swing. doing.

The flat surface 8a of the head main body 5 is colored white, for example, and the back surface 8b is colored black, making the front and back clear. Further, the tip surface of the head body 5 is formed as a flat surface 8c, and can be placed upright on a floor or the like when the golf swing practice device is not used, so that it can be stored even in a narrow space.

A circular concave portion 9 is provided in the widthwise intermediate portion near the front end of the front surface of the head body 5, and a motor 10 composed of a small DC motor has a rotary shaft 11 mounted on the flat surface 8a in the concave portion 9. Perpendicular to the head body 5
Is fixed so as to protrude from the back surface 8b.

A disk-shaped rotating body 13 fitted to the rotating shaft 11 is provided on the back surface 8b side of the head body 5, and a gyroscope 14 that rotates integrally with the rotating shaft 11 is provided.
Is composed. A plurality of rods 15 protrude from the back surface 8b of the head body 5 located around the gyroscope 14, and a protection plate 16 that covers the gyroscope 14 is provided between the tips of the rods 15. Is fixed to the rod 15 by screws 17.

As described above, by providing the gyroscope 14 on the back surface 8b side of the head main body 5, the center of gravity (O) of the head 2 is located behind the extension (L) of the axis of the grip 1 due to the weight of the gyroscope 14. It is located in the same manner as a normal golf club head.

Further, a switch 18 is provided on the front side of the head body 5 adjacent to the motor 10, and an operation lever 19 of the switch 18 projects from an opening provided in the metal plate 6 to the front side. . An indicator lamp 20 is provided on the metal plate 6 located near the operation lever 19 of the switch 18.
The display lamp 20 is electrically connected to the motor 9 via a lead wire 21, and the display lamp 20 is electrically connected to the motor 10 to turn on and generate power when the motor 10 rotates.

Further, a concave portion 22 is provided at a longitudinally intermediate portion on the front side of the head main body 5, and a battery box 23 is provided in the concave portion 22. And
For example, two AA batteries 24 are set in the battery box 23, and the batteries 24 are electrically connected to the switch 18.

In the golf swing trainer constructed as described above, when the switch 18 is turned on by operating the operation lever 19 of the switch 18, the motor 10 is energized and the rotating shaft 11 rotates. The rotating body 13 fitted to the is rotated counterclockwise, and the gyroscope 14 is driven. The rotation speed of the gyroscope 14 is about 10,000 rpm, and when the rotation speed exceeds a certain value, the display lamp 20 is turned on to indicate that the rotation is stable.

Then, as shown in FIGS. 4A and 4B,
When the grip 1 is gripped in the same manner as a normal golf club, the vibration generated by the rotation of the gyroscope 14 is transmitted from the head 2 to the hands and arms via the grip 1, and it is intuitive that the gyroscope 14 is rotating. I understand.

Next, the golf swing training device (hereinafter, referred to as a golf swing training device)
A golf swing practice method using a trainer will be described. When the switch 18 is turned on by operating the operation lever 19 of the trainer, the gyroscope 14 rotates. Rotation is stable (about 10,000r
pm), hold the trainer's grip 1 with your left hand. Since the trainer is heavier than a normal golf club, hold the grip 1 as short as possible. So that the plane 8a of the head 2 faces the direction of the flying ball, that is, the left side of the body,
And the back surface 8b is held so as to face the rear of the flying ball line.

Then, as shown in FIGS. 5 (a) to 5 (d), the trainer is gently shaken left and right in the manner of shaking a bucket with one left hand. At this time, there is no need to pay special attention, such as hitting the ball or following a specific trajectory. At both ends of the reciprocating motion, the position where the head 2 is horizontal is just right, and the wrist is softened and shaken. The head 2 may jump up slightly from the horizontal. Mainly, when swinging from right to left as smoothly as possible, a force that returns the head 2 through the grip 1 by a gyro moment described below at the middle of the swing, that is, when the gyroscope 14 is at the lowest point (FIG. 5D). Can be felt on the left hand. If you do not oppose this gyro moment and slowly shake the trainer with the intention of using it, your left hand will return naturally after the point of impact.

Next, the grip 1 is grasped with both hands, and FIG.
As shown in (a) to (d), lightly twist the body to the right and shift the weight to the right foot. When the tip of the trainer has reached shoulder height on the right side of the body, slowly shift the weight to the left foot. Then, at a slightly later timing, the head 2 is shaken while returning its hand, and the trainer stops again at the left shoulder position.

"Take-back practice" Place a real ball on the ground or on the floor at an appropriate position,
That is, the address is set so that the tip of the rotating shaft 11 of the gyroscope 14 points to the ball. Now, a square grip,
Assuming that you have a square stance, the attitude of the address depends on which club you imagine.

As shown in FIGS. 7A to 7H, takeback is started. With the left hand, left shoulder, and left foot united, twist the entire body to the right and slowly start takeback motion. Practice to be able to take back smoothly without jerking and without loosening the left arm.

The end point of this phase is approximately the time point (d) when the weight is put on the right foot and the left arm is substantially horizontal. When viewed from above, it is normal that the left arm is a little bit deeper than the flying ball,
Since the body is not completely twisted, it is easy to stop here. At this time, the board surface passes through the ball,
That is, it can be confirmed whether or not the user is on the swing plane.

Now, after continuing torsion and topping,
Enter the downswing, where the weight shifts to the left, the weight of the head 2 is felt on the left thumb, and at the same time, grasp the left little finger and ring finger as hard as possible, and force them to stop next to the grip 1 or the right hip bone. Pull down a cup. Never swing with the intention of hitting the ball. Just pull back the trainer with your left hand as soon as you gain weight and stop suddenly along the way. When the grip 1 is pulled down beside the right hip bone,
The trainer is suddenly stopped (see FIG. 7 (h)). The trainer can be shortened so that the head does not fall down like a real club, and can be stopped as it is. It is one of the features of the present invention that it is possible to confirm whether or not the board surface is on the swing plane at this position. As described below, it is a necessary condition for a proper swing to pull down the club so that the club face rides on the swing plane in a downswing.

By continuing the practice in the manner described above, the trainer can naturally acquire the correct swing from the back swing to the follow-through. FIG. 8 shows the second embodiment, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted. In the present embodiment, the rotating body 13 uses the elasticity of the rotating shaft 11 of the rotating body 13 that constitutes the gyroscope 14 so that the rotating body 13 is
When a contact is made between the first member 25a to the fourth member 25d provided in the above, a rubbing sound is generated.

That is, the first member 25 is spaced from the head main body 5 by 90 ° about the rotation axis 11 in plan view.
a to the fourth member 25 d are arranged so as to surround the motor 10. Of the first member 25a to the fourth member 25d, for example, the first member 25a and the second member 25b are hollow shafts having different outer diameters, and the third member 25c and the fourth member 25d are solid shafts having different outer diameters. , All have the same height, and the upper end surface is provided close to the lower surface of the rotating body 13. Here, the fact that each of the first member 25a to the fourth member 25d is formed as a hollow shaft or a solid shaft having a different outer diameter means that the gyroscope 14
Of the rotating member 13 constituting the first member 25a to the fourth member 25
The rubbing sound when contacting with d is different from each other (a sound that can be recognized by a human as to which member the sound is in contact with), and the material of the first member 25a to the fourth member 25d is changed. Alternatively, a different rubbing sound can be generated even if the material is changed only in the portion that comes into contact with the rotating body 13.

With this configuration, when the grip 1 is gripped and the trainer is shaken, the rotating shaft 11 is bent due to the rotational inertia acting on the rotating body 13, and the periphery of the rotating body 13 is as shown in FIG. As shown, the rotating body 13 contacts the first member 25a or the third member 25c (the second member 25
b or the fourth member 25d). At this time, since the rotating body 13 is rotating at a high speed, a rubbing sound is generated.

Here, the relationship between the mechanism for producing sound and the swing will be described.
The X, Y, and Z axes are defined as shown in FIG. It is assumed that the rotating shaft 11 of the rotating body 13 constituting the gyroscope 14 is rotating about the Z axis in the direction of arrow A in FIG. Further, the rotating shaft 11 is assumed to be an elastic body. Consider what happens when the trainers are independently rotated about the X, Y, and Z axes.

In the trainer, the gyroscope 1
Since the projection 4 is regarded as the head of the club, the rotation of the trainer in the direction of the arrow A around the X axis means a movement corresponding to the return of the left hand or the roll of the left arm in terms of swing. Grip 1 is the rotation of the trainer around the Y axis
Centered on the club face, this means that the club head makes a circular motion along the swing plane in the direction facing the ball (the club is considered to make a circular motion along the swing plane). ).

The rotation of the trainer about the Z-axis means that the club head moves circularly along the swing plane in a direction in which the club face is parallel to the swing plane. The gyroscope 14 is mechanically indifferent to the external rotational movement about the Z axis, but is rotated about the Y or X axis for the movement about to tilt the rotating body 13 around the X or Y axis. It is known that a gyro moment which is a kind of inertial resistance is generated.

First, consider the rotation of the trainer about the X axis. When there is no external force, the rotating body 13 simply rotates as shown in FIG. 8B, but when the rotation in the direction of arrow A is given around the grip 1 in FIG. 8C, when the rotating shaft 11 is an elastic body, the rotating body 13 tilts and the rotating body 1
The edge of 3 contacts the first member 25a. When the grip 1 is rotated in the direction opposite to the arrow A in FIG. 8A, the rotating body 13 generates a moment in the direction opposite to that in FIG.
Is in contact with the third member 25c on the opposite side of the third member 25c.

For the rotation of the trainer about the Y axis,
The same moment is generated by the rotating body 13 to cause a similar phenomenon. That is, the rotating body 13 comes into contact with the second member 25b or the fourth member 25d. With respect to the combined rotation around the X and Y axes, by separately providing an intermediate member at an intermediate position between the two, the rotating body 13 contacts the intermediate member.

Whether or not the rotating body 13 contacts the first member 25a to the fourth member 25d in response to the movement around the X and Y axes is determined by the rotation speed of the rotating body 13, the moment of inertia, the rotating body 1
It depends on the gap between the third member 25a to the fourth member 25d, the bending rigidity of the rotating shaft 11, and the speed of movement (rotation) of the trainer. If the parameters are set in accordance with the swing speed of the trainer, the rotating body 13 is brought into contact with the first member 25a to the fourth member 25d with respect to rotation of the trainer around the X and Y axes at a required speed. Can be set.

Further, in the present embodiment, as described above, of the first member 25a to the fourth member 25d, for example, the first member 25a and the second member 25b are hollow shafts having different outer diameters, and the third member 25a is the third member 25b. 25c and the fourth member 25d are solid shafts having different outer diameters, and the rubbing noise when the rotating body 13 contacts the first member 25a to the fourth member 25d is different from each other. For example, it is possible to produce a rubbing sound with reverberation for rotation about the X axis and a mere rubbing sound for rotation about the Y axis.

Accordingly, the sound generation characteristics of the trainer with a gyro according to the swing are as follows. This trainer is designed and manufactured by utilizing the gyro effect as described above. When the club face moves parallel to the swing plane, no sound is generated no matter what speed the trainer shakes (because the rotation is about the Z axis). On the other hand, even if the swing is along the swing plane, the face closes during the swing, the head falls early (an cock), or the head jumps up.
The trainer produces a metallic scuffing sound. In addition, X.X. For a particular combined rotational movement around the Y axis, ie, for a correct swing, a distinctive rubbing sound is produced by the resonance phenomenon.

A person hitting the ball to some extent can swing the club head on his or her own swing plane (slice plane, hook plane or square plane). Therefore, the golf swing can be described by the inclination of the swing plane with respect to the flying ball and the rotation timing (X axis, Y axis) of the club on the swing plane. The deviation of the direction of the swing plane can be recognized from the comprehensive judgment of the observer and the ball muscle, but the problem is the recognition of the rotation timing of the club. Conventionally, it has been almost impossible for a person who swings to directly recognize the rotation of the club around each axis during or immediately after the swing.

It is difficult to accurately evaluate the axial rotation of the club unless a special-purpose high-speed video or high-speed camera is used. It cannot be overemphasized that if the situation of the shaft rotation of the club can be easily recognized during the swing, it is extremely useful for the swing correction. As already described in detail, the trainer is intended to provide the trainee with information about the rotation of the shaft during the swing of the club.

Next, how to use the golf swing trainer will be described in comparison with a correct swing. One use of this golf swing trainer is to check for proper movement of the head along the swing plane. That is, the "vertical board" attached to the head surface is
To make it easy to visually check whether the movement of the head is along the swing plane and whether the rotating surface is moving accurately in the flow of the swing, the head is made large and easy to see. The preparation of the correct form by ear, the acquisition of the timing, and the correction of the swing form are as described below.

From the beginning of the downswing to the beginning of the follow-swing after the impact, if the club moves on the swing plane with the restriction of the skeletal structure of the human body and attempts to hit the ball squarely, Therefore, a rotation of about 180 degrees has to be given around the X axis (see FIGS. 9, 10 and 11).

The correct swing is a little over 90 degrees at the beginning of the downswing, and the club rotates only in the Z-axis (the club shaft stands up and down while the face is along the swing plane. Is required.) Then, it can be said that the X-axis rotation and the Y-axis rotation are given. It is shown in FIG. This is clear from the analysis of professional swings, and the trainer is designed so that sound is produced after the impact when the rotational angular velocity increases, utilizing the fact that the rotational angular velocity around the X axis and Y axis of the club is relatively small before impact It will be clear from the foregoing description of the mechanism that this is possible.

The trainer is designed such that if an advanced amateur person makes a correct swing with approximately 50% of the power and speed, a rubbing sound is made after the impact.
Conversely, by practicing so that a continuous rubbing sound is produced after the impact position, a correct swing timing can be naturally obtained.

For reference, FIGS. 10 and 11 show the characteristics of a swing in which an amateur easily falls. People who make sound at the early stage of downswing or before impact (Fig. 1
0), it is divided into a slice system and a hook system, but in any case, there is a problem that the flight distance is not obtained. The main reason for this is that, as described in detail in the figure, the club is strongly conscious of hitting the ball squarely,
There is to give the shaft rotation. The X-axis rotation itself is not necessarily bad, but the work of the right hand to achieve it can cause a fatal release of the cock as a side effect. If the cock is released prematurely in the downswing, the club head will be far away from the body, the inertial resistance to acceleration will increase sharply, and any physical person can no longer efficiently accelerate the head. I will.

When the swing of the wrist is too strong (FIG. 11), it is difficult to catch the ball in a square shape. This means the variation of the ball, which is one of the worries of a person who has been able to swing to some extent, but in this case the rotational angular velocity around the X axis is fast before and after impact, so the scratching noise generated by this trainer The short time is shown in FIG.
It can be easily understood by comparing with.

Judging from the professional swing, the correct swing is the X-axis,
It appears that rotation about the Y axis is at the same speed for about 90 degrees. This means that the body turn and grip position have been synchronized for a while before and after impact.
It's the so-called "body turn".

In this trainer, when making a correct swing, it is adjusted so that a rubbing sound is generated for a relatively long time from the impact until the club becomes horizontal, so that the trainer always gives the correct swing to the trainee. It means that it can be done. By using this trainer to practice so that the sound continues after the impact,
You can learn the so-called "patience" and "body turn" in the downswing.

As described above, since the trainer gives the sound of the correct swing timing by sound, it is possible to acquire the correct swing as described above. It has the advantage that a stable swing can be acquired only by making sound come out at a certain timing.

Next, a specific training method using the trainer that produces a sound according to the present embodiment will be described below. When practicing the flipping of the left hand and the weight shift shown in FIG. 5, hold with one hand and rotate it around the grip 1, and confirm that a “signal sound” is output from the gyroscope 14. Try to make sure that there is no sound when rotating slowly, and that a jar sounds easily when rotating rapidly, but that it is very difficult to continuously produce sound for a long time.

As shown in FIG. 6, the trainer can hold the trainer with both hands for addressing, feel the "inertial force" of swinging lightly and pull in the swing direction, and hear the "signal sound". Observe this “sound” and note where the sound is and how long the sound lasts.

Further, in order to avoid sound during the downswing, the swing is adjusted so that the sound continues as long as possible after the position of the impact, and practice is performed to stabilize the sound output. Because this trainer is shorter than the actual club length,
Although there is a difference in the sense of swing from that of an actual club, by adjusting the power and suppressing the swing speed to about 50 to 60% for the reasons described above, this uncomfortable feeling can be eliminated.

FIG. 7 shows the practice of pulling down to the impact. As seen from a professional swing, the face is put on the swing plane from the beginning of the downswing,
Keep doing that for as long as possible, and do not make any sound on the downswing, but start making roll sounds before and after impact. As already described, it is also necessary to separately practice such that the plane portion of the board rides on the swing plane in FIG. 7 (h).

FIG. 12 shows a third embodiment. The same components as those of the second embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, when the rotating body 13 contacts the first member 25a to the fourth member 25d by utilizing the elasticity of the rotating shaft 11 of the rotating body 13 constituting the gyroscope 14, a sliding noise is generated. Instead of the second embodiment, the first member 25a
A switch 26 is provided on the upper end surface of the fourth member 25d, and when the trainer is shaken, the rotating shaft 11 is bent due to the rotational inertia acting on the rotating body 13, and the periphery of the rotating body 13 is
, The switch 26 is turned on and the buzzer 27 generates a sound.

One switch 26 is provided for each of the first member 25a to the fourth member 25d.
Numerals 6 are electrically connected to buzzers 27 that generate different sounds, and determine whether or not their own swing is ideal based on how the sound generated during the swing is emitted (continuous sound or discontinuous sound). You can naturally learn a good swing by listening to the sound so that a good sound (continuous sound) is produced when you shake the trainer, and so that the sound is produced in a constant manner.

FIG. 13 shows the fourth embodiment. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, the head 2 is formed in a thin shape having substantially the same diameter as the grip 1, and the protection plate 16 that covers the rotating body 13 constituting the gyroscope 14 is formed in a substantially hemispherical shape. . The external shape of the present golf swing trainer is not limited to the shape shown in the above embodiment, and the design can be changed as appropriate.

FIG. 14 shows a fifth embodiment. Since this trainer is made shorter than the actual club, the difference in the dynamic moment due to the difference in length with the actual club felt by the body during a swing is reduced, and the head body 5 Is provided with an external balancer 28. At least two mounting brackets 2 are provided on the plane 8a of the head body 5 on the axial extension of the grip 1.
The external balancer 28 is supported on the mounting brackets 29 so as to be slidable in the axial direction. The external balancer 28 may be a metal pipe or a synthetic resin pipe, and a weight 28a is provided at the tip.

The mounting bracket 29 is provided with a tightening screw 30. With the external balancer 28 extended,
By tightening the tightening screw 30, the external balancer 28 can be fixed to the head main body 5, and when swinging, the difference in the dynamic moment due to the difference in length from the actual club felt by the body can be reduced. It can be reduced and the muscle strength can be increased. When not in use, the tightening screw 30 is loosened and the external balancer 28 is removed.
By pulling in the external balancer 28, the external balancer 28 can be aligned substantially in parallel with the grip 1, and does not hinder the carrying.

The external balancer is not limited to the above-described embodiment, but may be a case that fits in the head main body and can be slidably extended. May be foldable via a hinge.

[0062]

As described above, according to the present invention, according to the first to third aspects, the gyroscope is incorporated in the head, and the gyroscope effect of the gyroscope according to the change in the plane of the head when swinging. By applying a force perpendicular to the rotation axis, the force is transmitted to the arm holding the grip, so you can practice swinging even in a small place such as indoors, while holding the grip, , "Weight transfer practice", "Takeback practice", "Top turn practice", "Body turn practice", "Real-time swing correction practice"
Etc. can be provided, and a golf swing practice device leading to an increase in score can be provided.

According to the fourth to seventh aspects, in addition to the effects of the first to third aspects, a moment is generated in the gyroscope according to a change in the plane of the head when swinging, and a sound is generated by the inclination of the gyroscope. I decided to do
The sound can determine whether the swing is correct or not, and can correct the swing.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a golf swing practice device according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway front view showing the head of the golf swing training device of the embodiment.

FIG. 3 is a side view showing the head of the golf swing training device of the embodiment.

4A and 4B show a state in which the golf swing practice device of the embodiment is gripped and addressed, wherein FIG. 4A is a front view and FIG. 4B is a side view.

FIG. 5 is an exemplary view showing a state of practicing using the golf swing practice device of the embodiment.

FIG. 6 is an exemplary view showing a state of practicing using the golf swing practice device of the embodiment.

FIG. 7 is an exemplary view showing a state of practicing using the golf swing practice device of the embodiment.

8A and 8B show a golf swing practice device according to a second embodiment of the present invention, wherein FIG. 8A is an overall perspective view, FIG. 8B is a cross-sectional view of the gyro part shown in FIG. FIG. 3D is a cross-sectional view of the gyro part, showing a state in which the rotating body is inclined.
FIG.

FIG. 9 is an explanatory view when the golf swing practice device of the embodiment is used to swing correctly.

FIG. 10 is an explanatory diagram when an incorrect outside-in swing is performed using the golf swing training device of the embodiment.

FIG. 11 is an explanatory diagram of a swing in which the left hand is returned too quickly using the golf swing practice device of the embodiment.

FIG. 12 is a vertical sectional side view of a head portion of a golf swing practice device according to a third embodiment of the present invention.

FIG. 13 is a plan view, a side view, a left side view, and a right side view of a golf swing practice device according to a fourth embodiment of the present invention.

FIG. 14 is a perspective view of a golf swing practice device according to a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Grip 2 ... Head 8a ... Flat surface 10 ... Motor 11 ... Rotation axis 13 ... Rotating body 14 ... Gyroscope

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[Procedure amendment]

[Submission date] March 3, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 5

[Correction method] Change

[Correction contents]

FIG. 5

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 6

[Correction method] Change

[Correction contents]

FIG. 6

Continuation of front page (72) Inventor Yasuhiro Yoshida 3175 Showa-cho, Kanazawa-ku, Yokohama-shi, Kanagawa Japan Japan Aircraft Co., Ltd.

Claims (7)

[Claims] 1. A grip, a head having a plane provided at a tip portion of the grip, a gyroscope provided on the head and having a rotation axis perpendicular to the plane, and a gyroscope provided on the head. A golf swing training device comprising: a motor that rotationally drives a gyroscope; and a battery connected to the motor via a switch. 2. The center of gravity of the head is located rearward of an extension of the axis of the grip.
The described golf swing practice device. 3. The golf swing training device according to claim 1, wherein the head has a rectangular flat surface on one side of the head body in the swing direction. 4. A grip, a head having a plane provided at the tip of the grip, a gyroscope provided on the head and having a rotation axis perpendicular to the plane, and a gyroscope provided on the head. A golf swing training device comprising a motor for rotating a gyroscope and a battery connected to the motor via a switch, wherein sound is generated by inertia acting on the gyroscope during a swing. . 5. The golf swing training device according to claim 4, wherein the sound is a rubbing sound of the gyroscope coming into contact with a member adjacent to the gyroscope due to the bending of the rotating shaft. 6. The member is composed of a plurality of members having different shapes or materials, and a moment is generated in the gyroscope when the head rotates around the axis of the grip and when the head rotates in a direction perpendicular to the axis of the grip. 6. The golf swing training device according to claim 5, wherein the gyroscope contacts the member to generate a rubbing sound, and the rubbing sound is different depending on the member. 7. A grip, a head having a plane provided at a tip portion of the grip, a gyroscope provided on the head and having a rotation axis perpendicular to the plane, and a gyroscope provided on the head. A motor that rotationally drives the gyroscope, a battery connected to the motor,
A plurality of switches that are provided adjacent to the gyroscope and that are turned on and off by the inclination of the gyroscope;
A buzzer connected to this switch and generating a sound when the switch is turned on generates a moment in the gyroscope when the head rotates around the axis of the grip and in a direction perpendicular to the axis of the grip. A gyroscope turns on the switch and the buzzer generates a sound.