JP2023178887A - golf swing correction device - Google Patents

Abstract

To allow a practitioner to experience a position and posture of a golf club moving on an ideal swing plane.SOLUTION: A golf swing correction device 1 includes a clamp 10 for holding a golf club C rotatably around a first axis AX1, a first arm AR1 with the clamp 10 fixed to a lower end thereof, a first joint JT1 for supporting the first arm AR1 rotatably around a second axis AX2 and a third axis AX3, a second arm AR2 with the first joint JT1 fixed to a lower end thereof, a second joint JT2 for supporting the second arm AR2 rotatably around a main axis AX0 with an upper end of the second arm AR2 used as a second fulcrum, a first motor 52 for regulating a rotation range of the second arm AR2, a second motor 62 for regulating a rotation range of the first arm AR1, and a third motor 42 for regulating a rotation range of the first arm AR1.SELECTED DRAWING: Figure 4

Description

Patent Law Article 30, Paragraph 2 application filed Announced at Hoshitani Golf Method Institute on December 16, 2021

The present invention relates to a golf swing correction device.

Golf is a sport where you hit a golf ball with a golf club. A golf club has a shaft, a grip fixed to one end of the shaft, and a club head fixed to the other end of the shaft. The player hits the ball against the club head by performing a swing motion while holding the grip with both hands. A swing motion is a series of motions for swinging a golf club. The swing motion consists of a backswing from address to the top, a downswing from the top to impact, and a follow swing from impact to finish. If a player performs a correct swing motion, he or she can hit the ball at the correct position on the club head.

A swing motion therapy machine for making a person learn this swing motion is disclosed in Japanese Patent Application Laid-Open No. 2019-198544. This swing motion therapy machine has a first joint fixed at approximately shoulder height, facing the therapist and several tens of centimeters in front of the therapist. The first arm has an inclined first axis of rotation, is inclined at an arbitrary angle toward the therapist from an axis orthogonal to the first axis of rotation, and is connected to the first arm when rotating about the first axis of rotation, and the tip of the first arm A second joint portion is connected to the second joint portion, and a second arm is connected to the second arm, the tip of which is equipped with a club clamp portion that grips the golf club by tilting it according to the lie angle. a second rotation axis for rotating the second arm around a third rotation axis perpendicular to the second rotation axis; and a third rotation axis for rotating the second arm around a third rotation axis perpendicular to the second rotation axis; It has a fourth rotation shaft that is coupled to rotate the golf club around the shaft axis.

However, in the swing motion therapy machine described in JP-A-2019-198544, the player can freely rotate each of the first to third rotation axes, so the swing motion of the therapist is not necessarily the correct swing motion. There is a problem that there are cases.

Japanese Patent Application Publication No. 2019-198544

One of the objects of the present invention is to provide a golf swing correction device that allows a practitioner to experience the position and posture of a golf club moving along an ideal swing plane.

According to an aspect of the present invention, a golf swing correction device includes a clamp that holds a shaft portion of a golf club rotatably about a first axis parallel to the axial direction of the shaft portion, and a clamp fixed to a lower end portion. a first arm; the first arm is rotatable about a second axis parallel to the axial direction; and the first arm is rotatable about a third axis perpendicular to the axis of the first arm, with the upper end of the first arm serving as a first fulcrum; a first joint to support; a second arm having the first joint fixed to its lower end; the second arm having its axial direction inclined at a first predetermined angle with respect to the first arm; a second joint that rotatably supports the second arm around a main axis that is inclined by a second predetermined angle with respect to the axial direction of the second arm with the upper end as a second fulcrum; and rotation of the second arm about the main axis. a first regulating means for regulating the range; a second regulating means for regulating the rotational range of the first arm about the second axis; and a third regulating means for regulating the rotational range of the first arm about the third axis; Equipped with

According to this aspect, since the second arm is rotatably supported by the second joint around the main axis with the upper end as the second fulcrum, the second arm is supported by the second joint with the upper end as the second fulcrum and the axis of the second arm. It rotates around a main axis that is inclined by a second predetermined angle with respect to the direction. The first joint is fixed to the lower end of the second arm, and the first joint supports the first arm, so the first arm and the second arm are connected by the first joint. Since the first joint supports the first arm rotatably about the second axis, the first arm rotates about the axis of the first arm with respect to the second arm. Furthermore, the first joint supports the first arm rotatably around the third axis using the upper end of the first arm as a first fulcrum, so that the first arm supports the first arm at the lower end of the second arm. It rotates around a third axis perpendicular to the axis of the first arm, using the upper end as a first fulcrum. A clamp is fixed to the lower end of the first arm, and the clamp holds the shaft portion of the golf club rotatably about the first axis. Rotates around one axis.

Further, the rotation range of the second arm around the main axis is restricted, the rotation range of the first arm around the second axis is restricted, and the rotation range of the first arm around the third axis is restricted. For this reason, the range in which a practitioner who swings while holding a golf club can change the position and posture of the golf club during the swing motion is limited. Here, an ideal swing plane is defined in which the club head moves during a swing motion. The position and posture of the golf club at any timing while the golf club moves within the ideal swing plane is referred to as the ideal position and posture. Practice golf club position and posture that moves close to the ideal swing plane during the swing motion, since the extent to which the practitioner can change the position and posture of the golf club during the swing motion is limited. people can experience it. As a result, it is possible to provide a golf swing correction device that allows a practitioner to experience the position and posture of a golf club moving along an ideal swing plane.

Preferably, the first motor supplies rotation about the main axis to the second arm, the second motor supplies rotation about the second axis to the first arm, and the second motor supplies rotation about the third axis to the first arm. The apparatus further includes a third motor.

According to this aspect, since the first arm and the second arm automatically rotate, the position and posture of the golf club change so that the club head moves on the ideal swing plane. Therefore, the practitioner can experience the ideal position and posture of the golf club during the swing motion.

Preferably, the rotation of the second arm about the main axis, the rotation of the shaft part about the first axis, the rotation of the first arm about the second axis, and the rotation of the first arm about the third axis are synchronized. The apparatus further includes an interlocking means for causing the apparatus to perform the operation.

According to this aspect, the rotation of the second arm around the main axis, the rotation of the shaft part around the first axis, the rotation of the first arm around the second axis, and the rotation of the first arm around the third axis are synchronized. , the posture and position of the golf club can be changed while the practitioner swings so that the club head moves on the ideal swing plane. Therefore, the practitioner can experience the ideal position and posture of the golf club at any timing during the swing motion.

Preferably, the second joint includes a first adjustment section that changes the distance between the first joint and the second fulcrum, and a second adjustment section that changes the second predetermined angle.

According to this aspect, the golf club can be placed in an ideal position and posture during the swing motion, depending on the physique of the practitioner.

FIG. 2 is a first diagram illustrating an example of a swing motion. FIG. 2 is a second diagram illustrating an example of a swing motion. FIG. 2 is a perspective view of the golf swing correction device according to the present embodiment at address. FIG. 2 is a right side view of the golf swing correction device in the address state according to the present embodiment. FIG. 3 is a right side view of the first arm and the vicinity of the first joint. It is a front view of the first arm and the vicinity of the first joint. FIG. 2 is an enlarged perspective view showing a portion around the main shaft of the golf swing correction device. It is a figure explaining the swing operation of a golf swing correction device. FIG. 2 is a block diagram showing an example of the configuration of a control section. FIG. 2 is a block diagram illustrating an example of functions of a CPU included in the control unit. 3 is a flowchart showing an example of the flow of control processing.

Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same parts are given the same reference numerals. Their names and functions are also the same. Therefore, detailed explanations thereof will not be repeated.

FIGS. 1 and 2 are diagrams illustrating an example of a swing motion. FIG. 1 is a diagram of a player in an address position, viewed from diagonally in front of the left of the player. FIG. 2 is a diagram of the player in the address position as seen from the left side of the player. Referring to FIG. 1, a golf club C includes a shaft portion C1, a club head C2 fixed to one end of the shaft portion C1, and a grip C3 fixed to the other end of the shaft portion C1. The player makes a swing motion while holding the grip C3.

Here, the position of the club head C2 when the player P is in the address position is called the address position AP, the position of the club head C2 when the player P is in the top position is called the top position TP, and the position of the club head C2 when the player P is in the top position is called the top position TP. The position of the club head C2 in the hitting position is referred to as the impact position IP, and the position of the club head C2 in the finishing position of the player P is referred to as the finishing position FP. The address position AP is near the rear of the ball a in the flight direction. The fly ball direction is the direction from ball a toward the target to which ball a is to be carried, and is indicated by arrow ar1. The swing motion includes a backswing that moves the club head C2 from the address position AP to the top position TP, a downswing that moves the club head C2 from the top position TP to the impact position IP, and a swing that moves the club head C2 from the impact position IP to the finish position FP. Consists of a follow swing that moves.

The stance direction is indicated by an arrow ar2. The stance direction is parallel to a line connecting the toes of both feet of player P. Furthermore, an arrow ar3 connecting both shoulders of player P is determined. In the address posture in a correct swing motion, arrow ar1, arrow ar2, and arrow ar3 are all parallel. A plane including arrows ar1 and ar3 is defined as an ideal swing plane SP. Note that the angle between the swing plane SP and the horizontal is determined depending on the length of the club.

When the player P makes a correct swing motion, the trajectory HT drawn by the club head C2 passes through the swing plane SP. In this case, the lowest point of the trajectory HT drawn by the club head C2 is the impact position IP, and the impact position IP and the position of the ball a overlap. A tangent to the trajectory HT drawn by the club head C2 at the impact position IP is parallel to the arrow ar1. When the club head C2 is at the impact position IP, the leading edge of the club head C2 is perpendicular to the arrow ar1.

Here, as shown in FIGS. 1 and 2, in the ideal swing plane SP when the player P makes a correct swing motion, the bottom surface is the area surrounded by the ellipse EL that includes the trajectory HT drawn by the club head C2. Define an elliptic cone. The apex VP of this elliptical sleep is located at approximately the same height as the player's shoulder height.

The golf swing correction device in this embodiment operates so as to make the player P experience a correct swing motion.

FIG. 3 is a perspective view of the golf swing correction device according to the present embodiment at address. FIG. 3 is a view of the golf swing correction device 1 viewed diagonally in front of the left of the player P. Here, the X direction, Y direction, and Z direction, which are orthogonal to each other, are defined. The X and Y directions are horizontal. The positive side in the X direction corresponds to the direction that player P faces at the time of address, the positive side in the Y direction corresponds to the fly ball direction, and corresponds to the upper side of the positive side in the Z direction.

Referring to FIG. 3, the golf swing correction device 1 includes a clamp 10 that holds a shaft portion C1 of a golf club C, a first arm AR1 that has the clamp 10 fixed to its lower end, and a first arm AR1 that supports the first arm AR1. 1 joint JT1, a second arm AR2 that fixes the first joint JT1 to the lower end, a second joint JT2 that supports the upper end of the second arm AR2, and a column 81 that directs the second joint JT2 to the upper end. A base 80 that supports a support column 81 is provided.

FIG. 4 is a right side view of the golf swing correction device in the present embodiment in an address state. FIG. 4 is a diagram of the golf swing correction device 1 viewed from the positive side to the negative side in the Y direction.

Referring to FIG. 4, the base 80 has a flat plate shape, and has a boarding surface 84 on the top surface on which the player P places both feet spread apart by the width of the stance, and a boarding surface 84 in front of the player (in the X direction) at a predetermined distance from the boarding surface 84. The support area 85 is located at a position apart from the support area 85 in the forward direction). The instruction area is arranged near the end of the base 80 in the X direction and at the center in the Y direction. The column 81 is fixed to the base 80 at a support area 85 .

Post 81 extends upwardly from support area 85 of base 80 . The strut 81 includes a strut lower part 82 and a strut upper part 83. The lower column 82 has a rectangular cross-section that extends in one direction and is formed by connecting two flat metal plates facing each other. The lower end of the column lower part 82 is fixed to the base 80 so as to extend perpendicularly from the support area 85 of the base 80. The upper column 83 has a rectangular cross-section that extends in one direction and is made by connecting two flat metal plates facing each other. The upper column 83 is fixed such that one end thereof is inclined at a predetermined angle at the upper end of the lower column 82 . A first adjustment mechanism may be provided to adjust the angle between the upper column 83 and the lower column 82. For example, the first adjustment mechanism includes a shaft member that rotatably connects the upper column 83 and the lower column 82, and a fixing member that restricts rotation of the upper column 83 and the lower column 82 around the shaft member. The fixing members are, for example, bolts and nuts.

The second arm holding portion 51 is fixed to the other end of the upper column 83 opposite to the end connected to the lower column 82 . The second arm holding section 51 holds the first motor 52. The rotation center of the rotation shaft of the first motor 52 is referred to as a main axis AX0. The second arm holding section 51 holds the first motor 52 so that the angle θ0 between the main axis AX0 and the horizontal direction is fixed at a predetermined angle. The second arm holding portion 51 may include a second adjustment mechanism that adjusts the angle θ0 between the main axis AX0 and the horizontal direction. The second adjustment mechanism may be provided between the strut upper part 83 and the second arm holding part 51, or may be provided between the second arm holding part 51 and the first motor 52.

A main rotation holding portion 53 is attached to the end of the rotation shaft of the first motor 52 . The main rotation holding part 53 has a flat plate shape and has a mounting surface and a holding surface facing opposite to each other. The mounting surface and the holding surface are parallel. The main rotation holding part 53 is attached to the end of the rotation shaft of the first motor 52 so that the rotation shaft of the first motor 52 is perpendicular to the mounting surface. The main rotation holding part 53 has two main clamping plates 54 that protrude perpendicularly from the holding surface. The two main clamping plates 54 each have opposing surfaces that face each other. The two main clamping plates 54 clamp the second arm AR2 by sandwiching the second arm AR2 between their opposing surfaces.

The second arm AR2 has a quadrangular prism shape with a rectangular cross section that extends in one direction. The second arm AR2 is fixed between the two main holding plates 54. The second arm AR2 is fixed by adjusting the distance between the opposing surfaces of the two main holding plates 54, respectively. Note that the method of fixing the second arm AR2 with the two main holding plates 54 is not limited to this, and other fixing methods may be adopted.

The main rotation holding section 53 holds the second arm AR2 such that an angle θ2 between the axial direction of the second arm AR2 and the main axis AX0 is a second predetermined angle. The main rotation holding section 53 may include a third adjustment mechanism that adjusts the angle θ2 between the axial direction of the second arm AR2 and the main axis AX0. Corresponding to the adjustment of the angle by each of the first adjustment mechanism and the second adjustment mechanism, the angle θ2 formed between the axial direction of the second arm AR2 and the main axis AX0 can be set to a second predetermined angle. The main rotation holding part 53 is configured to be able to hold any position in the axial direction of the second arm AR2. Therefore, the distance from the position where the axis of the second arm AR2 intersects with the main axis AX0 to the end of the second arm AR2 is adjusted. The second arm holding section 51, the first motor 52, the main rotation holding section 53, and the two main holding plates 54 constitute the second joint JT2.

FIG. 5 is a right side view of the vicinity of the first arm and the first joint. FIG. 5 is a diagram showing the vicinity of the first arm AR1 and the first joint JT1 in the direction from the positive side to the negative side in the Y direction, and is an enlarged view of the dotted line portion in FIG. 4. FIG. 6 is a front view of the first arm and the vicinity of the first joint. FIG. 6 is a diagram of the vicinity of the first arm AR1 and the first joint JT1 viewed from the negative side to the positive side in the X direction.

Referring to FIGS. 5 and 6, a second bearing holding portion 41 is fixed to the lower end of the second arm AR2. The second bearing holding section 41 has a bearing that pivotally supports the second rotating shaft 35 of the second rotation holding section 31 . The rotation center of the rotating shaft supported by the bearing of the second bearing holding part 41 is the second axis AX2. The second bearing holding portion 41 is fixed to the second arm AR2 such that the angle θ1 between the second axis AX2 and the axis of the second arm AR2 is a first predetermined angle. In addition, in this embodiment, an example is shown in which the second arm AR2 and the second bearing holding part 41 are formed integrally, but the angle θ1 between the second axis AX2 and the axis of the second arm AR2 is A third adjustment mechanism configured to be changeable may be provided.

The second rotation holding section 31 is arranged below the second bearing holding section 41 . The second rotation holding portion 31 has a flat plate shape with a circular cross section, and has an upper surface and a lower surface that are parallel to each other. A groove is formed on the side surface of the second rotation holding part 31. The second rotation holding part 31 has a second rotation shaft 35 extending perpendicularly from the center of the upper surface. The second rotation shaft 35 is fixed to the second rotation holding part 31 in a non-rotatable state. The second rotating shaft 35 is supported by a bearing included in the second bearing holding section 41 and is connected to the fall prevention member 34 at a portion that projects from above the second rotating holding section 31 . Therefore, the distance between the second rotation holding part 31 and the second bearing holding part 41 is kept constant. Although the example in which the second rotating shaft 35 is fixed to the second bearing holding part 41 is shown, the second rotating shaft 35 is fixed to the second bearing holding part 41, and the second bearing holding part 41 is fixed to the second bearing holding part 41. A bearing corresponding to the shaft 35 may be provided.

The second rotation holding part 31 has a third bearing holding part 33 on the lower surface. The third bearing holding section 33 has a flat plate shape extending perpendicularly from the lower surface of the second rotation holding section 31 . The third bearing holding section 33 has a bearing that pivotally supports the third rotating shaft 24 parallel to the lower surface of the second rotation holding section 31 . The rotation center of the third rotating shaft 24 is the third axis AX3. The second axis AX2 and the third axis AX3 are perpendicular to each other.

The first arm AR1 includes an upper support part 21, two third shaft holding parts 23, a connecting part 22, a lower support part 14, two first holding plates 13, and a first bearing holding part 12. In addition, in FIG. 5, illustration of one of the two first clamping plates 13 disposed on the positive side in the Y direction is omitted.

The upper support portion 21 has an upper surface and a lower surface that face each other in parallel. The upper support part 21 has two third shaft holding parts 23 extending perpendicularly from the upper surface. Each of the two third shaft holding parts 23 has a flat plate shape and has opposing parallel surfaces. Each of the two third shaft holding portions 23 has a through hole perpendicular to the opposing surface formed at an opposing position. A third bearing holder 33 is arranged between the two third shaft holders 23. The third rotating shaft 24 passes through the through holes formed in each of the two third shaft holding parts 23 and the bearing of the third bearing holding part 33 . The third rotating shaft 24 is supported by a bearing included in the third bearing holder 33, and is fixed to each of the two third shaft holders 23 in a non-rotatable state. Thereby, the upper support part 21 is rotatably connected to the second rotation holding part 31 around the third axis AX3.

The second bearing holding part 41, the second rotating shaft 35, the second rotating holding part 31, the third bearing holding part 33, the upper support part 21, the two third shaft holding parts 23, and the third rotating shaft 24 make the first joint JT1 is configured. Note that the first joint JT1 is not limited to the above configuration, but is configured such that the third axis AX3 and the second axis AX2 are orthogonal to each other, and the first arm AR1 is configured to rotate the second axis around its axis. It is only necessary that the second arm AR2 can hold the first arm AR1 so that it can rotate around the third axis AX2 and the first arm AR1 can rotate around the third axis AX3 using its upper end as a fulcrum, and other configurations may be adopted. You can.

A third driven roller 25 is fixed to one end of the third rotating shaft 24, and a first driving roller 26 is fixed to the other end. In addition, in FIG. 6, the third driven roller 25 and the first driving roller 26 are indicated by dotted lines. The third driven roller 25 and the first drive roller 26 are fixed to the third rotating shaft 24 in a non-rotatable state so that their rotation centers coincide with the third axis AX3. Each of the third driven roller 25 and the first driving roller 26 has a flat plate shape with a circular cross section, and a groove is formed on the side surface. The diameter of the third driven roller 25 is larger than the diameter of the first drive roller 26.

The upper support part 21 and the lower support part 14 are connected by two connecting parts 22. The lower support portion 14 has an upper surface and a lower surface that are parallel to each other. The two connecting portions 22 have a cylindrical shape and have the same length in the longitudinal direction. The lower surface of the upper support part 21 and the upper surface of the lower support part 14 are connected by two connecting parts 22 . The upper ends of the two connecting parts 22 are fixed to two different points on the lower surface of the upper support part 21, and the lower ends of the two connecting parts 22 are fixed to two different points on the upper surface of the lower supporting part 14. Therefore, the upper support part 21 and the lower support part 4 are connected to each other by the two connecting parts 22 in a non-rotatable state.

The lower support part 14 has two first clamping plates 13 extending perpendicularly from the lower surface. The first bearing holding part 12 is fixed between the two first holding plates 13. The two first holding plates 13 each have opposing surfaces that face each other. The first bearing holding part 12 has a flat plate shape, and is fixed so that the side surfaces at both ends of the first bearing holding part 12 are in contact with the opposing surfaces of the two first holding plates 13, respectively.

The first bearing holding section 12 has a bearing that rotatably holds the clamp 10. The center of rotation of the rotating shaft of the bearing of the first bearing holder 12 is referred to as a first axis AX1. The first bearing holder 12 is fixed to the two first clamping plates 13 so that the angle between the first axis AX1 and the axis of the first arm AR1 is a predetermined angle. Note that the first bearing holding section 12 may include a fourth adjustment mechanism that adjusts the angle of the bearing.

The clamp 10 is connected to a first driven roller 11. Note that in FIG. 6, the first driven roller 11 is indicated by a dotted line. The clamp 10 is configured to grip the shaft portion C1 of the golf club C with the axis of the shaft portion C1 parallel to the first axis AX1. The first driven roller 11 has a flat plate shape with a circular cross section, and a groove is formed on the side surface. The clamp 10 is connected to the first driven roller 11 and rotates as the first driven roller 11 rotates.

FIG. 7 is an enlarged perspective view showing a portion around the main axis of the golf swing correction device. Referring to FIGS. 4 and 7, a second motor 62 is fixed below the second arm holding portion 51 of the upper column 83. As shown in FIGS. A second drive roller 63 is attached to the end of the rotating shaft of the second motor 62 . The second drive roller 63 has a flat plate shape with a circular cross section, and a groove is formed on the side surface. The second drive roller 63 is attached to the rotation shaft of the second motor 62 such that its rotation center coincides with the rotation shaft of the second motor 62. Ends of two wires 67 are connected to two opposing locations on the side surface of the second drive roller 63, respectively.

A second tube upper holding portion 64 is fixed to the upper column 83 below the second drive roller 63 . The second tube upper holding portion 64 has a flat plate shape, and has two through holes formed therein. The two through holes are arranged to face the two ends of the second drive roller 63, respectively. Preferably, the distance between the two through holes is equal to or less than the diameter of the second drive roller 63. Two wires 67 extending from the second drive roller 63 enter from above the two through holes of the second tube upper holding part 64, respectively. On the lower surface of the second tube upper holding part 64, one end of the second tube 65 is connected to each of the two through holes.

Referring again to FIGS. 5 and 6, a second tube lower holding section 69 is fixed to the lower surface of the second bearing holding section 41. As shown in FIG. The second tube lower holding part 69 is fixed to the second bearing holding part 41 in a non-rotatable state. The second tube lower holding part 69 has an L-shaped cross section in which the first flat plate part and the second flat plate part are vertically connected. The first flat plate portion is fixed to the lower surface of the second bearing holding portion 41 . Two through holes to which two second tubes 65 are connected are formed in the second flat plate portion. The second tube lower holding part 69 is connected to one end of the two second tubes 65 from one surface of the second flat plate part so as to cover each of the two holes formed in the second flat plate part.

Referring to FIGS. 2 and 5, each of the two wires 67, one end of which is connected to the side surface of the second drive roller 63, extends from the end of the second drive roller 63 to the through hole of the second tube upper holding part 64. , the second tube 65 , and a through hole formed in the second flat plate portion of the second tube lower holding portion 69 , to be connected to one of two locations on the side surface of the second rotation holding portion 31 . Therefore, when the second drive roller 63 rotates, one of the two wires 67 is pulled and the other is pushed out, so the second rotation holding part 31 rotates. When the diameters of the second drive roller 63 and the second rotation holding part 31 are the same, the amount of rotation of the second drive roller 63 and the second rotation holding part 31 is the same.

As the second drive roller 63 and the second rotation holding section 31 rotate, the wire 67 fits into the grooves formed on the respective sides. Thereby, the wire 67 is wound along the respective side surfaces of the second drive roller 63 and the second rotation holding section 31. Since the wire 67 extends from the end of the second drive roller 63, the relative position between the position where the wire 67 extends from the second drive roller 63 and the two through holes of the second tube upper holding part 64 does not change. Further, since the wire 67 extends from the end of the second rotation holding part 31, two penetrations are formed at the position where the wire 67 extends from the second rotation holding part 31 and in the second flat plate part of the second tube lower holding part 69. The relative position to the hole does not change. Therefore, the rotational force of the second motor 62 can be accurately transmitted to the second rotation holding section 31.

Referring to FIGS. 4 and 7, a third motor 42 is fixed to the upper end of the second arm AR2. A third drive roller 43 is attached to the end of the rotating shaft of the third motor 42 . The third drive roller 43 has a flat plate shape with a circular cross section, and a groove is formed on the side surface. The third drive roller 43 is attached to the rotation shaft of the third motor 42 such that its center of rotation coincides with the rotation shaft of the third motor 42 . Ends of two wires 47 are connected to two opposing locations on the side surface of the third drive roller 43, respectively.

Below the third drive roller 43, the third tube upper holding part 44 is fixed to the second arm AR2. The third tube upper holding part 44 has a flat plate shape, and has two through holes formed therein. The two through holes are arranged to face both ends of the third drive roller 43. Preferably, the distance between the two through holes is equal to or less than the diameter of the third drive roller 43. Two wires 47 extending from the third drive roller 43 enter from above the two through holes of the third tube upper holding part 44, respectively. On the lower surface of the third tube upper holding part 44, one end of the third tube 45 is connected to each of the two through holes.

Referring to FIGS. 4 to 6, a third tube holding section 32 is fixed to the upper surface of the second rotation holding section 31. As shown in FIGS. The third tube holding part 32 is fixed to the second rotation holding part 31 in a non-rotatable state. The third tube holding portion 32 has two through holes formed therein to which the two third tubes 45 are connected. One ends of two third tubes 45 are connected to the third tube holding part 32 from above the first flat plate part so as to cover each of the two through holes.

Each of the wires 47, one end of which is connected to the side surface of the third drive roller 43, extends from the end of the third drive roller 43 to the through hole of the third tube upper holding part 44, the third tube 45, and the third tube holding part 32. It is connected to one of two locations on the side surface of the third driven roller 25 via a through hole formed in the third driven roller 25 . Therefore, when the third driving roller 43 rotates, one of the two wires 47 is pulled and the other is pushed out, so that the third driven roller 25 rotates. When the diameters of the third drive roller 43 and the third driven roller 25 are the same, the amount of rotation of the third drive roller 43 and the third driven roller 25 is the same.

As the third drive roller 43 and third driven roller 25 rotate, the wire 47 fits into the grooves formed on the respective sides. Thereby, the wire 47 is wound along the respective sides of the third driving roller 43 and the third driven roller 25. Since the wire 47 extends from the end of the third drive roller 43, the relative position between the position where the wire 47 extends from the third drive roller 43 and the two through holes of the third tube upper holding part 44 does not change. Further, since the wire 47 extends from the end of the third driven roller 25, the relative position between the position where the wire 47 extends from the third driven roller 25 and the two through holes formed in the third tube holding part 32 does not change. . Therefore, the driving force of the third motor 42 can be efficiently transmitted to the third driven roller 25.

Referring to FIGS. 5 and 6, the third driven roller 25 and the first driving roller 26 are connected by the third rotating shaft 24, so as the third driven roller 25 rotates, the first driving roller 26 rotates. Rotate. The amount of rotation of the third driven roller 25 and the first driving roller 26 is the same. The first drive roller 26 has a flat plate shape with a circular cross section, and a groove is formed on the side surface. One ends of the two wires 16 are connected to two opposing locations on the side surface of the first drive roller 26, respectively. The first driven roller 11 has a flat plate shape with a circular cross section, and a groove is formed on the side surface. The other ends of the two wires 16 are connected to two opposing locations on the side surface of the first driven roller 11, respectively. In addition, in FIG. 6, the third driven roller 25, the first driving roller 26, and the two wires 16 are indicated by dotted lines.

The wire 16, one end of which is connected to the side surface of the first driving roller 26, is connected to two locations on the side surface of the first driven roller 11 via the roller 15, respectively. The roller 15 is supported by a rotating shaft that extends perpendicularly from the opposing surface of the first holding plate 13 . The diameter of the roller 15 and the position of the rotation axis are determined so that the direction in which the wire 16 extends is parallel to the rotation surface of the first drive roller 26 and parallel to the rotation surface of the first driven roller 11.

Therefore, when the first drive roller 26 rotates, one of the two wires 16 is pulled and the other is pushed out, so the first driven roller 11 rotates. When the diameters of the first drive roller 26 and the first driven roller 11 are the same, the amount of rotation of the first drive roller 26 and the first driven roller 11 is the same.

As the first driving roller 26 and the first driven roller 11 rotate, the wire 16 fits into the grooves formed on the respective sides. As a result, the wire 16 is wound along the respective sides of the first driving roller 26 and the first driven roller 11. A wire 16 extends from the end of the first drive roller 26 to the roller 15 parallel to the plane of rotation of the first drive roller 26 . Further, a wire 16 extends from the end of the first driven roller 11 to the roller 15 in parallel to the rotating surface of the first driven roller 11. Therefore, the first driving roller 26 can efficiently transmit the driving force of the third motor 42 to the first driven roller 11 via the third driven roller 25.

The rotation around the third axis AX3 and the rotation around the first axis AX1 are linked. In this embodiment, the first drive roller 26 and the first driven roller 11 have the same diameter. Therefore, the amount of rotation around the third axis AX3 and the amount of rotation around the first axis AX1 are the same.

Control unit 100 is a general computer. The control unit 100 controls the first motor 52, the second motor 62, and the third motor 42. The control unit 100 controls the first motor 52 to rotate the second arm AR2 around the main axis AX0 with the axis of the second arm AR2 being inclined at a second predetermined angle with respect to the main axis AX0. The control unit 100 controls the second motor 62 to rotate the first arm AR1 around a second axis AX2 parallel to the axial direction. Further, the control unit 100 controls the third motor 42 to rotate the third rotation shaft 24 connected to the upper end of the first arm AR1 around the third axis AX3, and also rotates the shaft of the golf club C. The portion C1 is rotated around a first axis AX1 parallel to the axial direction of the shaft portion C1.

FIG. 8 is a diagram illustrating the swing operation of the golf swing correction device. FIG. 8 is a front view of the golf swing correction device 1, and is a diagram showing a plurality of states at different times in a superimposed manner. The movements of the first arm AR1, second arm AR2, and golf club C during the backswing from the address position AP to the top position TP are indicated by dotted arrows. During this time, the second arm AR2 gradually rotates backwards around the main axis AX0, the second arm AR2 gradually rotates backwards around the second axis AX2 and third axis AX3, and the golf club C gradually rotates around the first axis AX1. rotates backwards.

At the top position TP, the rotational position of the second arm AR2 around the main axis AX0, the rotational position of the second arm AR2 around the second axis AX2, and the rotational position of the second arm AR2 around the third axis AX3 are Corresponds to the lower limit of the rotatable range.

The movements of the first arm AR1, second arm AR2, and golf club C during the downswing from the top position TP to the impact position IP and the follow-through from the impact position IP to the finish position FP are indicated by solid arrows. During this time, the second arm AR2 gradually rotates forward around the main axis AX0, the second arm AR2 gradually rotates forward around the second axis AX2 and the third axis AX3, and the golf club C gradually rotates around the first axis AX1. rotates forward.

At the finish position FP, the rotational position of the second arm AR2 around the main axis AX0, the rotational position of the second arm AR2 around the second axis AX2, and the rotational position of the second arm AR2 around the third axis AX3 are Corresponds to the upper limit of the rotatable range.

FIG. 9 is a block diagram showing an example of the configuration of the control section. Referring to FIG. 9, a control unit 100 includes a CPU (central processing unit) 101, a memory 102, a control interface (I/F) 103, an input I/F 104, and a communication I/F 105, which are connected via a bus. include.

The memory 102 includes a ROM (Read Only Memory) and a RAM (Random Access Memory). The ROM stores programs executed by the CPU 101 or data necessary for executing the programs. The RAM is used as a work area when the CPU 101 executes a program. The memory 102 may include an EPROM (Erasable Programmable ROM) or an HDD (Hard Disc Drive) that stores data in a non-volatile manner. Furthermore, the memory 102 may include an external storage device into which a CD-ROM (Compact Disk Read Only Memory) 106 or a semiconductor memory is attached.

The control I/F 103 is connected to the first motor 52, the second motor 62, and the third motor 42, and controls them. The input I/F 104 is connected to the operation panel, receives operations input by the player P to the operation panel, and outputs the input to the CPU 101.

Communication I/F 105 is an interface for connecting control unit 100 to a network. The communication I/F 105 communicates with other computers connected to the network using a communication protocol such as TCP (Transmission Control Protocol) or UDP (User Datagram Protocol). Note that the network to which the communication I/F 105 is connected is a local area network (LAN), and the connection type may be wired or wireless. Further, the network is not limited to a LAN, but may be a wide area network (WAN), a public switched telephone network (PSTN), the Internet, or the like.

A CPU 101 included in the control unit 100 executes an application program. The application program includes a program for controlling the golf swing correction device 1.

In this embodiment, an example will be described in which the CPU 101 executes a program stored in the memory 102, but the CPU 101 reads a program stored in the CD-ROM 106 or a semiconductor memory, and stores the read program in the RAM. and execute it. Note that the recording medium for storing programs to be executed by the CPU 101 is not limited to the CD-ROM 106, but may also include a flexible disk, a cassette tape, an optical disk (MO (Magnetic Optical Disc)/MD (Mini Disc)/DVD (Digital Versatile Disc)). )), an IC card, an optical card, a mask ROM, an EPROM (Erasable Programmable ROM), and other semiconductor memories.

Further, the CPU 101 downloads a program from a computer connected to the network and stores it in the memory 102, or the computer connected to the network writes the program to the memory 102 so that the program stored in the memory 102 can be downloaded. It may also be executed by the CPU 101. The programs referred to here include not only programs that can be directly executed by the CPU 101, but also source programs, compressed programs, encrypted programs, and the like.

FIG. 10 is a block diagram illustrating an example of the functions of a CPU included in the control unit. The functions shown in FIG. 10 are realized by the CPU 101 included in the control unit 100 by executing a control program stored in a memory. Referring to FIG. 10, CPU 101 includes a setting section 151 and a motor control section 153.

The setting unit 151 sets the rotation range of each of the main axis AX0, the second axis AX2, and the third axis AX3. The setting unit 151 stores in advance a set of rotation ranges for each of the main axis AX0, second axis AX2, and third axis AX3 in the memory 102, and sets the rotation range to the set specified by the user. Further, when the player P inputs the rotation range from the operation panel, the setting unit 151 sets the rotation range for each of the main axis AX0, the second axis AX2, and the third axis AX3 input by the player P.

The rotation ranges of the main axis AX0, second axis AX2, and third axis AX3 are determined by the rotation position at the top (address rotation position) and the rotation position at the finish (finish rotation position). Therefore, the upper and lower limits of the rotatable range are determined for each of the main axis AX0, the second axis AX2, and the third axis AX3. For each of the main axis AX0, second axis AX2, and third axis AX3, the first rotation amount from the address rotation position to the top rotation position and the second rotation amount from the address rotation position to the finish rotation position are the same. It may be different or it may be different.

Note that if only a group in which the rotation ranges for each of the main axis AX0, the second axis AX2, and the third axis AX3 are defined by default is stored in the memory 102, the setting unit 151 determines the rotation ranges for each of the main axis AX0, the second axis AX2, and the third axis AX3 by default. Set to rotation range.

The motor control unit 153 drives the first motor 52, the second motor 62, and the third motor 42 in response to input of a startup instruction from the player P. If the operation panel includes a foot switch, the activation instruction may be input from the foot switch. Specifically, the motor control unit 153 reversely rotates the first motor 52 by a first reverse rotation amount from the address rotation position until it reaches the top rotation position determined with respect to the spindle AX0, and then rotates the first motor 52 toward the spindle AX0. It is rotated forward by a first forward rotation amount until it reaches a rotation position at a predetermined finish. The absolute value of the rotational speed of the first motor 52 is constant and determined by the time of the entire swing operation. The absolute value of the rotation speed of the first motor 52 is determined from the sum of the first reverse rotation amount and the first forward rotation amount and the time of the entire swing operation.

The motor control unit 153 reversely rotates the second motor 62 by a second reverse rotation amount from the address rotation position to the top rotation position determined with respect to the second axis AX2, and then rotates the second motor 62 with respect to the second axis AX2. The second forward rotation amount is rotated in the forward direction until the final rotation position is reached. The absolute value of the rotational speed of the second motor 62 is constant and determined by the time of the entire swing operation. The absolute value of the rotation speed of the second motor 62 is determined from the sum of the second reverse rotation amount and the second forward rotation amount and the time of the entire swing operation.

The motor control unit 153 reversely rotates the third motor 42 by a third reverse rotation amount from the address rotation position to the top rotation position determined with respect to the third axis AX3, and then rotates the third motor 42 with respect to the third axis AX3. The third forward rotation amount is rotated in the forward direction until the final rotation position is reached. The absolute value of the rotational speed of the third motor 42 is constant and determined by the time of the entire swing operation. The absolute value of the rotational speed of the third motor 42 is determined from the sum of the third reverse rotation amount and the third forward rotation amount and the time of the entire swing operation.

The motor control unit 153 causes the first motor 52, the second motor 62, and the third motor 42 to rotate synchronously. The first motor 52, the second motor 62, and the third motor 42 rotate in the reverse direction from the address rotation position to the top rotation position, and rotate in the forward direction from the top rotation position to the finish rotation position during one swing operation. Therefore, the motor control unit 153 causes the first motor 52, the second motor 62, and the third motor 42 to start rotating simultaneously with the start of the swing motion, and end their rotation simultaneously with the end of the swing motion.

FIG. 11 is a flowchart showing an example of the flow of control processing. The control process is a process executed by the CPU 101 included in the control unit 100 by executing a control program stored in a memory. Referring to FIG. 11, CPU 101 included in control unit 100 sets rotation ranges for each of main axis AX0, second axis AX2, and third axis AX3 (step S01), and advances the process to step S02. A set of rotation ranges for each of the main axis AX0, second axis AX2, and third axis AX3 is stored in the memory 102, and the rotation range defined by the stored set is set. If a plurality of sets are stored in the memory 102, the set specified by the player P is selected. Further, if one set is stored in the memory 102, that set is automatically selected.

In step S02, the rotational speeds of the first motor 52, the second motor 62, and the third motor 42 are determined. In order to rotate the first motor 52, the second motor 62, and the third motor 42 synchronously, the CPU 101 determines the rotation speed from the rotation range set in step S01 and the time of the swing operation.

In the next step S03, it is determined whether the activation instruction has been accepted. A startup instruction is accepted when a foot switch provided on the operation panel is pressed by the player. If the activation instruction is accepted, the process proceeds to step S04, but if not, the process returns to step S01.

In step S04, the CPU 101 rotates each of the first motor 52, second motor 62, and third motor 42 to the address rotation position. The address rotational position indicates the rotational position of each of the first motor 52, the second motor 62, and the third motor 42 when the club head C2 is located at the address position AP. The address rotation position is a position determined by default.

In the next step S05, the CPU 101 rotates each of the first motor 52, the second motor 62, and the third motor 42 in the reverse direction, and advances the process to step S06. The rotational speed at which each of the first motor 52, the second motor 62, and the third motor 42 is rotated in reverse is the rotational speed determined in step S02.

In step S06, it is determined whether or not the top rotation position is reached. If it is the top rotation position, the process proceeds to step S07, but if not, the process returns to step S05. The top rotational position is the rotational position of each of the first motor 52, second motor 62, and third motor 42 when the club head C2 is located at the top position TP. When stepping motors are used for the first motor 52, the second motor 62, and the third motor 42, the respective rotation positions are detected from the respective rotation amounts. Further, an encoder may be used to measure the amount of rotation of each of the first motor 52, the second motor 62, and the third motor 42. Furthermore, since the time required to rotate from the address rotation position to the top rotation position is determined from the time of the swing motion, it is determined whether or not the top rotation position is reached based on the elapsed time from the start of reverse rotation in step S05. good.

In step S07, the CPU 101 rotates each of the first motor 52, second motor 62, and third motor 42 in the forward direction, and advances the process to step S08. The rotational speed at which each of the first motor 52, the second motor 62, and the third motor 42 is rotated in the forward direction is the rotational speed determined in step S02.

In step S08, it is determined whether or not the finish rotation position is reached. If it is the finish rotation position, the process proceeds to step S09, but if not, the process returns to step S07. The finish rotational position is the rotational position of each of the first motor 52, second motor 62, and third motor 42 when the club head C2 is located at the finish position FP. When stepping motors are used for the first motor 52, the second motor 62, and the third motor 42, the respective rotation positions are detected from the respective rotation amounts. Further, an encoder may be used to measure the amount of rotation of each of the first motor 52, the second motor 62, and the third motor 42. Further, since the time required to rotate from the top rotation position to the finish rotation position is determined from the time of the swing motion, it is determined in step S07 whether or not the finish rotation position is reached based on the elapsed time from the start of normal rotation.

In step S09, the CPU 101 rotates each of the first motor 52, second motor 62, and third motor 42 to the address rotation position, and advances the process to step S10. In step S10, it is determined whether the number of swing motions has reached a set number of times. The number of swing movements is counted up, and the number of times after counting up is compared with the set number of times. The set number of times is set by the player P before the activation instruction is input. If the number of swing motions is not the set number of times, the process returns to step S05, but if the number of swing motions is the set number of times, the process ends. When the process returns to step S05, the processes from step S05 to step S09 are executed. Therefore, the swing motion is repeated until the set number of times is reached.

As described above, the golf swing correction device 1 according to the present embodiment includes a clamp 10 that holds the shaft portion C1 of the golf club C rotatably around the first axis AX1 parallel to the axial direction of the shaft portion C1. , a first arm AR1 having a clamp 10 fixed to its lower end, and a first arm that is rotatable around a second axis AX2 parallel to the axial direction and that uses the upper end of the first arm AR1 as a first fulcrum. A first joint JT1 is rotatably supported around a third axis AX3 perpendicular to the axis of AR1, and a second arm AR2 has the first joint JT1 fixed to its lower end, and the axial direction is relative to the first arm AR1. The second arm AR2 is tilted by a first predetermined angle with respect to the axial direction of the second arm AR2, and the main axis AX0 is tilted by a second predetermined angle with respect to the axial direction of the second arm AR2 with the upper end of the second arm AR2 as a second fulcrum. a second joint JT2 that rotatably supports the second arm AR2, a first motor 52 that regulates the rotation range of the second arm AR2 about the main axis AX0, and a rotation range of the first arm AR1 about the second axis AX2. and a third motor 42 that regulates the rotation range of the first arm AR1 about the third axis AX3.

Therefore, the second arm AR2 is rotatably supported by the second joint JT2 around the main axis AX0 with the upper end as the second fulcrum, so the second arm AR2 The main axis AX0 is inclined at a second predetermined angle with respect to the axial direction of the main axis AX0. The first joint JT1 is fixed to the lower end of the second arm AR2, and the first joint JT1 supports the first arm AR1, so the first arm AR1 and the second arm AR2 are connected by the first joint JT1. . Since the first joint JT1 supports the first arm AR1 rotatably about the second axis AX2, the first arm AR1 rotates about the axis of the first arm AR1 relative to the second arm AR2. Further, the first joint JT1 supports the first arm AR1 rotatably around the third axis AX3 using the upper end of the first arm AR1 as a first fulcrum, so the first arm AR1 supports the second arm AR2. The lower end rotates around a third axis AX3 orthogonal to the axis of the first arm AR1, using the upper end of the first arm AR1 as a first fulcrum. A clamp 10 is fixed to the lower end of the first arm AR1, and the clamp 10 holds the shaft portion C1 of the golf club C rotatably around the first axis AX1. The first axis AX1 is parallel to the axial direction of the shaft portion C1.

Further, the rotation range of the second arm AR2 around the main axis AX0 is restricted, the rotation range of the first arm AR1 around the second axis AX2 is restricted, and the rotation range of the first arm AR1 around the third axis AX3 is restricted. Ru. Therefore, the range in which the player P who swings while gripping the golf club C can change the position and posture of the golf club C during the swing motion is limited. Since the posture and position of the golf club C are regulated, the player can experience the position and posture of the golf club C moving in a position close to the ideal swing plane SP during the swing motion. As a result, the player can experience the position and posture of the golf club C moving in a position close to the ideal swing plane SP.

The golf swing correction device 1 also includes a second motor 62 that supplies the first arm AR1 with rotation about a second axis AX2, and a second motor 62 that supplies the first arm AR1 with rotation about a third axis perpendicular to the axis of the first arm AR1. 3 motor 42, and a first motor 52 that supplies rotation around the main axis AX0 to the second arm AR2. Therefore, since the first arm AR1 and the second arm AR2 are automatically rotated, the position and posture of the golf club C change so that the club head C2 moves on the swing plane SP. Therefore, the player P can experience the ideal position and posture of the golf club C during the swing motion.

The control unit 100 also controls the rotation of the second arm AR2 around the main axis AX0, the rotation of the shaft portion C1 around the first axis AX1, the rotation of the first arm AR1 around the second axis AX2, and the rotation of the first arm AR1 around the second axis AX2. The rotation around the third axis AX3 is synchronized. Therefore, the rotation of the second arm AR2 around the main axis AX0, the rotation of the shaft portion C1 around the first axis AX1, the rotation of the first arm AR1 around the second axis AX2, and the rotation of the first arm AR1 around the third axis AX3. Since the rotations are synchronized, the attitude and position of the golf club C can be changed so that the club head C2 moves on the swing plane SP while the player P swings. Therefore, the player P can experience the ideal position and posture of the golf club C at any timing during the swing motion.

Further, the second joint JT2 can change the distance between the first joint JT1 and a second fulcrum where the axis of the second arm AR2 and the main axis AX0 intersect, and the distance between the axis of the second arm AR2 and the main axis AX0 can be changed. It is possible to change the angle θ2 between the two. Therefore, depending on the physique of the player P, the golf club C can be placed in an ideal position and posture during the swing motion.

<First modification example>
In this embodiment, the golf swing correction device 1 is provided with the first motor 52, the second motor 62, and the third motor 42, but these may not be provided. In this case as well, the rotation range of the second arm AR2 around the main axis AX0 is restricted, the rotation range of the first arm AR1 around the second axis AX2 is restricted, and the rotation range of the first arm AR1 around the third axis AX3 is restricted. is regulated. This limits the rotatable range on each of the four rotation axes, allowing the player P to experience the upper and lower limits of the range in which the golf club C can be moved on each of the four rotation axes.

<Second modification example>
In the present embodiment, the golf swing correction device 1 sets the rotational speeds of the first motor 52, the second motor 62, and the third motor 42 to be constant in order to synchronize them, but the invention is not limited thereto. For example, by associating the rotational positions of the first motor 52, the second motor 62, and the third motor 42 in advance, the rotational positions of the first motor 52, the second motor 62, and the third motor 42 are synchronized. may be done. A plurality of points during the swing motion are determined in advance, and the rotational positions of the first motor 52, the second motor 62, and the third motor 42 are stored for each of the plurality of points, and the first motor 52 is rotated between each of the plurality of points. , the rotation speeds of the second motor 62 and the third motor 42 are determined. The plurality of points may be determined based on the swing of a professional golfer, for example. For example, when a professional golfer swings using the golf swing correction device 1, the golf swing correction device 1 is taught the rotational positions of the first motor 52, second motor 62, and third motor 42 at each of a plurality of points. You can. Further, the swing motion of a professional golfer is acquired as a motion picture or the like, and the rotational positions of the first motor 52, the second motor 62, and the third motor 42 are determined from the position and posture of the golf club C at each of a plurality of points.

The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above description, and it is intended that all changes within the meaning and range equivalent to the claims are included.

1 Golf swing correction device, 4 Lower support part, 10 Clamp, 11 First driven roller, 12 First bearing holding part, 13 First clamping plate, 14 Lower support part, 15 Roller, 16 Wire, 21 Upper support part, 22 Connection part, 23 Third shaft holding part, 24 Third rotating shaft, 25 Third driven roller, 26 First driving roller, 31 Second rotation holding part, 32 Third tube holding part, 33 Third bearing holding part, 34 Fall prevention member, 35 second rotating shaft, 41 second bearing holding section, 42 third motor, 43 third drive roller, 44 third tube upper holding section, 45 third tube, 47 wire, 51 second arm holding section , 52 first motor, 53 main rotation holding part, 54 main holding plate, 62 second motor, 63 second drive roller, 64 second tube upper holding part, 65 second tube, 67 wire, 69 second tube lower holding part part, 80 base, 81 column, 82 lower column, 83 upper column, 84 boarding surface, 85 support area, 100 control section, 101 CPU, 102 memory, 151 setting section, 153 motor control section, AR1 first arm, AR2 2nd arm, AX0 Main axis, AX1 1st axis, AX2 2nd axis, AX3 3rd axis, C Golf club, C1 Shaft, C2 Club head, FP Finish position, JT1 1st joint, JT2 2nd joint, SP Swing plane.

According to another aspect of the invention, a golf swing correction device includes a clamp that holds a shaft portion of a golf club rotatably about a first axis parallel to the axial direction of the shaft portion, and a clamp that is fixed to a lower end portion. a first arm, the first arm is rotatable about a second axis parallel to the axial direction, and the first arm is rotatable about a third axis perpendicular to the axis of the first arm using the upper end of the first arm as a first fulcrum; a second arm having the first joint fixed to its lower end, the second arm having an axial direction inclined at a first predetermined angle with respect to the first arm; a second joint that rotatably supports the second arm around a main axis that is inclined at a second predetermined angle with respect to the axial direction of the second arm with the upper end as a second fulcrum; The control device further includes a first motor that supplies rotation, a second motor that supplies rotation about a second axis to the first arm, and a third motor that supplies rotation about a third axis to the first arm. The means drives each of the first motor, the second motor, and the third motor at constant rotational speeds per unit time .

According to another aspect of the invention, a golf swing correction device includes a clamp that holds a shaft portion of a golf club rotatably about a first axis parallel to the axial direction of the shaft portion, and a clamp that is fixed to a lower end portion. a first arm, the first arm is rotatable about a second axis parallel to the axial direction, and the first arm is rotatable about a third axis perpendicular to the axis of the first arm using the upper end of the first arm as a first fulcrum; a second arm having the first joint fixed to its lower end, the second arm having an axial direction inclined at a first predetermined angle with respect to the first arm; a second joint that rotatably supports the second arm around a main axis that is inclined at a second predetermined angle with respect to the axial direction of the second arm with the upper end as a second fulcrum; a first motor that supplies rotation, a second motor that supplies rotation about a second axis to the first arm, and a third motor that supplies rotation about a third axis to the first arm; The motor and the third motor are arranged in a separate part from the first arm.
Preferably, the rotation of the second arm about the main axis, the rotation of the shaft part about the first axis, the rotation of the first arm about the second axis, and the rotation of the first arm about the third axis are linked . The apparatus further includes an interlocking means for causing the apparatus to perform the operation.

Claims (4)

a clamp that rotatably holds the shaft portion of the golf club about a first axis parallel to the axial direction of the shaft portion;
a first arm having the clamp fixed to the lower end;
The first arm is rotatably supported around a second axis parallel to the axial direction, and rotatably supported around a third axis perpendicular to the axis of the first arm using the upper end of the first arm as a first fulcrum. a first joint;
a second arm having the first joint fixed to a lower end thereof, the second arm having an axial direction inclined at a first predetermined angle with respect to the first arm;
a second joint that rotatably supports the second arm around a main axis that is inclined by a second predetermined angle with respect to the axial direction of the second arm, with the upper end of the second arm being a second fulcrum;
a first regulating means for regulating a rotation range of the second arm around the main axis;
a second regulating means for regulating a rotation range of the first arm about the second axis;
A golf swing correction device comprising: a third regulating means for regulating a rotation range of the first arm about the third axis. a first motor that supplies rotation about the main shaft to the second arm;
a second motor that supplies rotation about the second axis to the first arm;
The golf swing correction device according to claim 1, further comprising a third motor that supplies rotation about the third axis to the first arm. rotation of the second arm around the main axis;
rotation of the shaft portion about the first axis;
rotation of the first arm about the second axis;
The golf swing correction device according to claim 1 or 2, further comprising interlocking means for synchronizing rotation of the first arm about the third axis. The second joint includes a first adjustment section that changes a distance between the first joint and the second fulcrum;
The golf swing correction device according to claim 1 or 2, further comprising a second adjustment section that changes the second predetermined angle.

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