KR20070049568A - Golf swing training device - Google Patents

Abstract

The present invention provides a golf swing exercise tool that can adjust the loft angle in multiple stages. A face plate 11, a shaft 12a, and a connecting means 13 thereof. The connecting means comprises a fixed neck portion 21 and a rotational neck portion 22 which is fitted to support the leading end of the shaft and to rotate in the fixed neck portion so that the shaft has an appropriate lie angle. Rotational movement with respect to the fixed neck part The mechanism M1 and M2 comprised by the tooth row which can adjust a loft angle in several steps by rotating a neck part by a predetermined angle is provided.

Golf swing, Golf club, Loft angle

Description

GOLF SWING TRAINING DEVICE}

1 is a side view of a golf swing training tool according to the present invention.

2 is a cross-sectional view of a part of the exercise tool shown in FIG.

3 is a cross sectional view of the coupling means.

4 is an enlarged plan view of an end surface of a rotation neck.

Figure 5 is an enlarged plan view of the end surface of the fixing means.

6 is a rear view showing a part of the exercise tool shown in FIG.

It is an enlarged view which shows the state which looked at the fixed neck part from the back peripheral surface.

8 is an enlarged view showing a state in which the rotational neck part is seen from the front circumferential surface thereof.

9 is a perspective view of the stand;

** Brief description of the main parts of the drawing **

10: exercise tool 11: face plate

12a: shaft 13: connecting means

14: Face side 16: Heel

21: Fixed neck part 22: Rotation movement neck part

23: fixing means 24: sole part

25: virtual reference horizontal line 27: axis

28: Large diameter fitting circumference 29: Small diameter fitting circumference

30: thread part 31: boss

32: front end large diameter fitting circumference

33: Small diameter fitting circumference

34: Back end large diameter fitting circumference 36: Spiral circumference

37: ring-shaped protrusion 39: rear end circumference

40: Concave part 41: Flange surface

42: convex part 44a, 44b: engagement tooth

46a, 46b, 46c: meshing tooth α: lie angle

β: Loft angle M1, M2: Loft angle adjustment mechanism

The present invention relates to a golf swing exercise tool having a mechanism capable of adjusting the loft angle in multiple stages.

Conventionally, the golf club which can adjust a loft angle and a lie angle is disclosed by Unexamined-Japanese-Patent No. 10-137373 regarding a golf club head. This adjusting mechanism has an angle adjusting member installed inside the head body, and the angle adjusting member is composed of an angle supporting member and a hosel member having an eccentric thickness that can be attached and detached from and replaced with the angle supporting member. It is. These adjustments, in particular, the adjustment of the loft angle, are made by placing the eccentric thickness portion of the hosel member on the face surface or the rear side of the head body.

However, the adjustment mechanism disclosed in Japanese Patent Laid-Open No. 10-137373 changes the direction of the hosel member and, if necessary, needs to be replaced with another hosel member having a different eccentric thickness. Since these tasks require the use of tools, making them readily available at the competition or practice site is difficult for the average golfer. Therefore, the golf club head is not developed as a swing exercise tool, and is not suitable as the exercise tool.

On the other hand, in the club's swing practice, since the direction of the face surface at the time of the ball impact is important, the book or plate member is inserted by hand to learn face rotation. Is the reality.

As far as the inventors know, there was no exercise tool suitable for practicing swing while visually checking face rotation and the like.

In swing practice, it is very important to swing while visually checking the face rotation, ball trajectory and spin state, so the present inventor can easily adjust the loft angle, and the face rotation, ball trajectory and spin state As a result of repeated trial and error in order to obtain a club-shaped exercise tool having a face surface which can be confirmed as, the present invention was reached.

The present invention includes a face plate, a shaft, and a connecting means of the face plate and the shaft, wherein the connecting means is formed from a heel portion of the face plate along an extension line of an imaginary reference horizontal line that is biased by the sole of the face plate. A protruding fixed neck portion, a rotational neck portion supporting the tip of the shaft so that the shaft has an appropriate lie angle, and fixing means. The fixed and rotational neck portion has a second fitting circumference such that one side thereof has a first fitting circumferential surface extending in a direction along the virtual reference horizontal line, and the other side is detachably fitted to the axis. A boss having a face, and the fastening means, respectively, have a function of fastening the fitting of the fastening and rotational neck portions. The first and second fitting circumferential surfaces are mechanisms capable of adjusting the loft angle in a plurality of steps by rotating one of the fixed and rotational neck portions stepwise with respect to the other in the circumferential direction of the surfaces. It is provided.

The present invention may include the following examples.

The fixed neck portion includes the support shaft, and the rotational neck portion includes the boss.

It is preferable that the mechanism which can adjust the said loft angle is the tooth row which is arrange | positioned in the circumferential direction with the 1st and 2nd fitting circumferential surface, and meshes with each other.

The support shaft including the fixed neck portion protrudes from the base portion of the fixed neck portion adjacent to the heel portion of the face plate, and in a axial direction of the support shaft, a large diameter fit circumferential surface and the large diameter fit The boss including a small diameter fitting circumferential surface adjacent to the fitting circumferential surface and a thread portion having a diameter smaller than and smaller than the small diameter fitting circumferential surface, wherein the boss including the rotary neck portion includes a length between the front and rear ends of the boss. Direction, the front end large diameter fitting circumference to be fitted to the large diameter fitting circumference, and the small diameter fitting to be fitted to the small diameter fitting circumference adjacent to the large diameter fitting circumference. A small diameter fitting circumferential surface of the fixed neck portion and the small diameter of the rotary motion neck portion; Words preferably are each formed to fit around the face. Preferably, the fixing means is a nut having a spiral hole screwed into the screw portion from the front end large diameter fitting circumferential surface side while the boss is fitted to the support shaft.

The boss further has a rear end large diameter fit circumferential surface adjacent to the small diameter fit circumferential surface of the boss, while the fixing means protrude to the side opposite the boss to fit the rear end large diameter fit circumferential surface. It is desirable to have annular projections.

The face plate is formed such that its contour mimics the contour of the golf club, and the size of the face surface is preferably two to three times the size of the golf club face surface or about the same as the blade of a table tennis racket.

At least the rotational neck portion and the fixing means is preferably formed of a synthetic resin.

It is preferable that, on one side of the surface where the boss and the fixing means face each other, a concave groove is formed on one side thereof and a protrusion is engaged on the concave groove at regular intervals on its circumferential direction. Do.

The lie angle is about the same as the standard lie angle of the golf club 5 to 8 irons, and the loft angle is approximately equal to each standard loft angle of the golf club driver and sand wedge, and their intermediate loft angle. It is preferable that it is three steps of a degree.

It is preferable that at least the center surface area | region of the face surface of the said face plate is formed with the score line and the rough surface in which the part except the said score line in the said center surface area | region is rough.

Moreover, this invention can also adopt the following structures.

That is, it comprises a face plate, a shaft, and the connecting means of the face plate and the shaft, the connecting means is a fixed neck portion protruding from the heel portion of the face plate along the extension line of the virtual reference horizontal line biased by the sole portion of the face plate And a rotational movement neck portion for supporting the distal end of the shaft so that the shaft has an appropriate lie angle, and fixing means, wherein the fixing neck portion has a first fitting circumferential surface and a thread portion extending in a direction along the virtual reference horizontal line; And a boss having a second fitting circumferential surface detachably fitted to the support shaft, wherein the fixing means is screwed to the screw portion with a nut function so that the rotation movement neck portion is provided. A helical circumferential surface for securing and including the first and second fits The alignment circumferential surface is provided with a mechanism capable of adjusting the loft angle in a plurality of stages by rotating one of the fixing and rotational movement neck portions stepwise with respect to the other in the circumferential direction of the surfaces. May adopt the configuration of the golf swing exercise tool consisting of a row of teeth interlocking with each other.

(Example)

Best Mode for Carrying Out the Invention The best mode for carrying out the present invention will be described below with reference to the illustrated examples.

1 to 3, the golf swing training tool 10 according to the present invention comprises a face plate 11, a grip and shaft 12, and a connecting means 13 thereof. All components are preferably formed of synthetic resin.

The face plate 11 corresponds to the head of the golf club, has a face face 14 and a back face on the opposite side, and the contour is formed to mimic the head of the iron club. The face face 14 is a face region 19 divided by the near boundary lines 17 and 18 of each of the toe part 15 and the heel part 16 of the face plate 11 to improve the spin of the ball. The score line 20 and the surface area 19 except this are formed in the rough surface. The area where the ball is to be impacted, i.e., the surface area 19, is not shown, but may be formed by attaching a material different from the face plate 11 to the face surface 14. In addition, although not shown, the face plate 11 is formed so that the thickness of the area | region from the substantially center part of the height direction to the sole part 24 may become thick gradually.

A very important point about the face plate 11 is that, as the inventors know, in order to make it easy to visually check the face rotation, ball trajectory and spin state, the face plate 11 is the face of the actual club head. It is about 2 to 3 times the size of a plane or about the size of a blade of a ping pong racket.

The grip and shaft 12 is formed of a shaft portion 12a and a cover 12b which integrally covers the shaft portion 12a and which is made of relatively soft and frictional rubber or synthetic resin. The length of the grip and shaft 12 is formed to be about the length of the golf club grip so that the face rotation, ball trajectory and spin state can be visually observed closer to each other using a stand for supporting the ball described later. It is desirable to have. However, even if it is formed longer than the length of a golf club grip, for example, even if it is formed about the length of a golf club, since it is possible to confirm visually, it is not limited to the length of a golf club grip.

The connecting means 13 is composed of a fixed neck portion 21, a rotational neck portion 22 and the fixing means 23. The fixed neck portion 21 protrudes from the heel portion 16 along an extension line of the virtual reference horizontal line 25 biased by the sole portion 24 of the face plate 11. However, the fixed neck portion 21 is formed separately from the face plate 11 may be integrated with it. The fixed neck portion 21 is provided integrally with the heel portion 16 and has a support shaft 27 protruding from the base portion 26 of the fixed neck portion 21 having a circular cross section with a diameter smaller than the diameter thereof. The support shaft 27 has a large diameter fit circumferential surface 28, a small diameter fit circumferential surface 29 adjacent to the large diameter fit circumferential surface 28, and a small diameter fit in turn in the axial direction thereof. Adjacent to the circumferential surface 29 has a thread portion 30 of smaller diameter. The rotary neck portion 22 has a boss 31 having an annular cross section. The boss 31 has a front end large diameter fit circumferential surface 32 fitted with the large diameter fit circumferential surface 28 of the fixed neck portion 21 in turn in the longitudinal direction between its front and rear ends, and a front end large diameter. On the small diameter fitting circumference 33 and the small diameter fitting circumference 33 which are adjacent to the fitting circumference 32 and fitted to the small diameter fitting circumference 29 of the fixed neck portion 21. It has an adjacent trailing end large diameter fit circumferential surface 34.

To the boss 31, a shaft 12a is connected via its large diameter base 12c. As shown in FIG. 1, the shaft 12a has the exercise tool 10 such that the virtual reference horizontal line 25 is almost horizontal, that is, the sole portion 24 is normally brought into contact with the ground or the floor of the exercise book. At this time, the axis 35 of the shaft 12a with respect to these faces is supported by the boss 31 so as to form a lie angle α. It is preferable that this lie angle (alpha) is a suitable angle, for example, the standard lie angle (60-63 degree | times) of the golf club 5th-8th iron.

The fixing means 23 is formed in the shape of a cap nut, and is formed on the helical circumferential surface 36 screwed to the threaded portion 30 of the support shaft 27 and the large end-fitting circumferential surface 34 of the rear end of the boss 31. It has an annular projection 37 to be fitted. On the outer surface of the fixing means 23, a plurality of recesses 38, which serve as a decoration and have an anti-slip function to the fingertip of the user, are formed.

4 and 5, the rear end peripheral surface 39 of the boss 31 is formed with a concave portion 40 extending radially at regular intervals in the circumferential direction thereof, while contacting the rear end peripheral surface 39 thereof. On the flange face 41 of the fixing means 23, convex portions 42 are formed in the circumferential direction at intervals corresponding to the intervals.

In order to connect the rotational movement neck portion 22 to the fixed neck portion 21, the screw circumferential surface 36 of the fixing means 23 is screwed to the threaded portion 30 of the fixing neck portion 21 and the fixing means 23 is tightened. Tighten by rotating. If the rotational neck portion 22 and the fixing means 23 are formed of synthetic resin, a strong sliding of the flange surface 41 of the fixing means 23 with respect to the rear end peripheral surface 39 of the boss 31 during the tightening By contact, the fixing means 23 is rotated while the surfaces thereof are elastically deformed, so that the uneven parts 40 and 42 can be engaged with each other. That is, it is preferable to adopt such fixing means because the connection state of the fixing and rotational neck portions 21 and 22 is reliably fixed by the tightening action of such fixing means 23. However, the fixing means in the state of connecting the rotational movement neck portion 22 to the fixing neck portion 21 may have a suitable structure other than the cap nut shape.

6 to 8, the small diameter fitting circumferential surface 29 of the fixed neck portion 21 and the small diameter fitting circumferential surface 33 (see FIG. 2) of the rotary motion neck portion 22 are provided with a shaft 12a. Mechanisms M1 and M2 that can adjust the loft angle β of the face surface 14 (see FIG. 1) of the face plate 11 with respect to the axis line 35 in steps are provided. The mechanism M1 engages two engagement teeth 44a and 44b which are parallel to each other in a portion of the small diameter fitting circumferential surface 29 which sandwiches the longitudinal center line 43 of the fixed neck portion 21 in the circumferential direction thereof. It consists of Mechanism M2 is oriented in the circumferential direction to the part facing the center line 45 in an angle range formed by the longitudinal center line 43 'of the rotary motion neck portion 22 and the transverse center line 45' perpendicular to it. It consists of three side by side engagement teeth 46a, 46b, 46c. The degree of loft angle is very important for visually confirming the face rotation, ball trajectory, and spin state. The loft angle β in the engaged state where the teeth 46a of the rotary motion neck portion 22 are positioned between the engagement teeth 44a and 44b of the fixed neck portion 21 is the degree of the standard loft angle of the golf club driver. The loft angle β in the engaged state in which the engagement teeth 46c of the rotational movement neck portion 22 is positioned between the engagement teeth 44a and 44b of the fixed neck portion 21 is the golf club sand wedge. The loft angle β in the engaged state in which the engagement teeth 46b of the rotational movement neck portion 22 are positioned between the engagement teeth 44a and 44b of the fixed neck portion 21 is a golf loft angle. It is desirable to be about the middle of each standard loft angle between the driver and the sand wedge, that is, the loft angle of the 4 to 5 irons. Specifically, the loft angle β is preferably in the range of 10 degrees to 58 degrees, and the loft angle β in the state of FIG. 6 is 10 degrees. Incidentally, the angles of θ ₁ , θ ₂ , and θ ₃ are each formed at 22.5 degrees.

The assembly of the exercise tool 10 and the adjustment of the loft angle according to the embodiment of the present invention having the above configuration will be described below with reference to FIGS. 2, 3, 7, and 8.

The rotational neck portion 22 is fitted and connected to the fixed neck portion 21. At this time, the engagement teeth 46a and 46b of the adjustment mechanism M2 are engaged with the engagement teeth 44a and 44b of the loft angle adjustment mechanism M1. , 46c) is selected, and the position is adjusted, and the fitting teeth are placed in the state in which the rotary neck portion 22 is pushed against the fixed neck portion 21 from the end face side of the screw portion 30. Interlock with each other. In this state, the large diameter fitting circumferential surface 32 of the front end of the rotary motion neck portion 22 is further inserted into the large diameter fitting circumferential surface 28 of the fixing neck portion 21. Small diameter fitting circumferential surfaces 33 of the rotary motion neck portion 22 are fitted to the fitting circumferential surfaces 29, respectively. Thereafter, the annular protrusion 37 of the fixing means 23 is fixed to the threaded portion 30 of the fixing neck portion 21 in a state where the ring-shaped protrusion 37 of the fixing means 23 is fitted to the large-diameter fitting circumferential surface 34 of the rear end of the rotational movement neck portion 22. The fixing means 23 are tightened by screwing the spiral circumferential surface 36 of the means 23. In this way, since the face plate 11 and the shaft 12a are connected through the connecting means 13, when adjusting another loft angle, the rotational movement neck part 22 was once extracted from the fixed neck part 21. After that, the operation may be performed again as described above.

In addition, it is preferable to mark the desired position on the outer circumferential surface of the fixed and rotational neck portions 21 and 22 to facilitate the alignment.

9 shows a suitable stand 100 in the case of hitting the ball with the exercise tool 10. The stand 100 is comprised by the leg part 102 and the support column 104 which has the tee 103 in the front-end | tip part. The support column 104 is composed of an outer pipe 104a and an inner pipe 104b inserted therein so as to be movable up and down, and the support column 104 includes a support column by sliding the inner pipe 104b up and down. (104) A screw 105 for maintaining the height adjusted state is installed. Tee 103 is formed of a rubber or synthetic resin in the shape of a pipe, the upper end is divided in its circumferential direction, the support portion 106 is formed.

The ball 107 represented by an imaginary line is preferably formed to be relatively large, for example, about 60 mm in diameter and lightweight, such as a foam material such as a sponge ball. Such a lightweight and soft ball is preferable because it is not dangerous even when hit indoors, and there is no fear of giving a strong impact such that the ball is deformed or damaged at the time of impact. In addition, in order to make it easy to visually confirm the spin state of the ball, it is preferable that a pattern such as a color line is displayed on the ball.

According to the golf swing exercise tool according to the present invention, since the loft angle of the golf club face surface is quite wide from the loft angle of the driver to the loft angle of the sand wedge, the loft angle can be used by adjusting the loft angle in multiple stages suitable for practice. have.

In addition, you can visually check the face rotation, ball trajectory and spin state to correct the swing effectively.

In addition, the loft angle can be adjusted immediately or simply by operating the connection between the face plate and the shaft without using a tool, which is very easy to use.

Claims (11)

A face plate, a shaft, the face plate and connecting means of the shaft, The connecting means includes a fixed neck portion projecting from the heel portion of the face plate along an extension line of the virtual reference horizontal line oriented to the sole portion of the face plate, and a rotational neck portion supporting the tip portion of the shaft so that the shaft has an appropriate lie angle; Including fastening means, The fixed and rotational neck portion has a second shaft having a first fitting circumferential surface, one of which extends in a direction along the virtual reference horizontal line, and the other of which is detachably fitted to the supporting shaft. A boss having a fitting circumferential surface, and wherein the fixing means has a function of fixing the fitting of the fixing and rotating neck portions, respectively, The first and second fitting circumferential surfaces are provided with a mechanism capable of adjusting the loft angle in a plurality of steps by rotating one of the fixed and rotational neck portions stepwise at a certain angle with respect to the other in their circumferential direction. Golf swing exercise equipment. The method of claim 1, The fixed neck portion includes the support shaft, the rotational exercise neck portion including the boss. The method according to claim 1 or 2, The mechanism which can adjust the said loft angle is the training tool which is arranged in the circumferential direction in the circumferential direction, and is engaged with each other on the said 1st and 2nd fitting peripheral surfaces. The method of claim 2, The support shaft included in the fixed neck portion protrudes from the base of the fixed neck portion adjacent to the heel portion of the face plate, and in turn, in the axial direction of the support shaft, a large diameter fitting circumferential surface and the large diameter fitting The boss included in the rotary neck has a small diameter fitting circumferential surface adjacent to the circumferential surface, and a thread portion having a diameter smaller than and smaller than the small diameter fitting circumferential surface, the length between the front and rear ends of the boss. Direction, the front end large diameter fit circumference to be fitted to the large diameter fit circumferential surface, and the small diameter fit fit to the small diameter fit circumference and adjacent to the large diameter fit circumferential face Having a circumferential surface, wherein the teeth row is fitted into the small diameter fitting of the fixed neck portion; And a fixing hole, each of which is formed on a circumferential surface, wherein the fixing means is a nut having a spiral hole screwed into the screw portion from the front end large diameter fitting circumferential surface side while the boss is fitted to the support shaft. The method of claim 4, wherein The boss further has a rear end large diameter fit circumferential surface adjacent to the small diameter fit circumferential surface of the boss, while the fixing means protrude to the side facing the boss to fit to the rear end large diameter fit circumferential surface thereof. Exercise equipment having a losing annular projection. The method of claim 1, The face plate is formed by its contour imitating the contour of the golf club, the size of the face surface is about two to three times the size of the golf club face, or almost the same as the blade of the table tennis racket. The method of claim 4, wherein Exercise equipment that at least the rotational neck portion and the fixing means is formed of a synthetic resin. The method of claim 7, wherein Of the surface facing the boss and the fixing means, one side of the groove is formed with a concave groove at regular intervals in the circumferential direction, the other side is formed with a projection that is engaged with the concave groove at regular intervals in the circumferential direction . The method of claim 1, The lie angle is about the same as the standard lie angle of the golf club, 5 to 8 irons, and the loft angle is about three standard loft angles of the golf club, driver and sand wedge, and their intermediate loft angle. Composed of exercise equipment. The method of claim 1, The face surface of the face plate, at least the center surface region is a practice line is formed of a rough surface and the portion except the score line in the central surface area. A face plate, a shaft, the face plate and connecting means of the shaft, The connecting means includes a fixed neck portion protruding from the heel portion of the face plate along an extension line of the imaginary reference horizontal line biased by the sole portion of the face plate, and a rotational neck portion supporting the tip portion of the shaft so that the shaft has an appropriate lie angle. Means, The fixed neck portion includes a support shaft having a first fitting circumference surface and a threaded portion extending in a direction along the virtual reference horizontal line, and the rotational movement neck portion has a second fitting circumference surface detachably fitted to the support shaft. And a boss, wherein the fixing means includes a spiral circumferential surface which is screwed to the screw portion with a nut function to fix the rotational movement neck portion. The first and second fitting circumferential surfaces have a mechanism capable of adjusting the loft angle in a plurality of stages by rotating one of the fixed and rotational neck portions stepwise with respect to the other in the circumferential direction of the surfaces. Is provided, the adjusting mechanism is a golf swing exercise tool consisting of a row of teeth engaged with each other.

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