Practice putter and putting practice tool

Abstract

To provide a practice putter allowing a user to learn a swing with a natural arc-shaped putter head trajectory, and putting practice tool.SOLUTION: A practice putter 10 comprises a shaft, a putter head 12 provided on a tip side of the shaft, and a grip provided on a base end side of the shaft 11. The putter head 12 includes a first part 21 on the heel side, a second part 22 on the toe side, a connecting part for connecting the first part 21 and the second part 22 between their upper parts, and a through-hole 26 provided below the connecting part and at a position sandwiched between the first part 21 and the second part 22 and penetrating rearward from a face surface 24 of the putter head 12. The heel side of the through-hole 26 is inclined in an arc shape toward the heel side in the rear with respect to a direction orthogonal to the face surface 24.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a golf practice putter and a putting practice tool. [Background technology]

[0002] In golf putting, in order to roll the ball accurately along the putting line, it is necessary to swing the putter without swinging left and right from the take-back to the follow-through. Therefore, various training tools have been proposed for practicing putting. For example, there is a training tool with a through hole in the putter head (Patent Document 1).

[0003] This practice tool is said to enable a golfer to swing the putter in a straight line by swinging the putter so that the ball passes through a through hole that extends linearly in a direction perpendicular to the head surface. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3175031 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the lie angle of a putter is set at 80 degrees or less, and is usually between 70 and 74 degrees.

[0006] In this case, a perfectly straight swing is unnatural due to the structure of the human body, and a circular motion centered on the spine is generally natural. Therefore, if you practice putting with the above-mentioned training tool, you may develop an unnatural swing. In this case, your putting practice will be counterproductive, as you will be unable to repeat the swing or roll the ball in the desired direction.

[0007] SUMMARY OF THE PRESENT EMBODIMENTS The main object of the present invention is to provide a practice putter and a putting practice tool that enable an golfer to master a swing that produces a natural arc-shaped putter head trajectory. [Means for solving the problem]

[0008] A practice putter for solving the above problem is a practice putter having a shaft, a putter head provided at the tip end of the shaft, and a grip provided at the base end of the shaft, wherein the putter head is provided with a first portion on the heel side, a second portion on the toe side, a connecting portion connecting the first portion and the second portion between their upper portions, and a through hole portion provided below the connecting portion and sandwiched between the first portion and the second portion, penetrating rearward from the face surface of the putter head, and the heel side of the through hole portion is inclined in an arc toward the heel side at the rear with respect to a direction perpendicular to the face surface.

[0009] As a result, even if the putter head swings in a natural arc, the heel side of the through hole is inclined in an arc toward the heel side at the rear, so the golf ball or the like will not collide with the side of the heel side of the through hole, and therefore it is possible to learn a swing that causes the putter head to swing in a natural arc.

[0010] A putting training device for solving the above problem includes a practice putter including a shaft, a putter head provided at the tip end of the shaft, and a grip provided at the base end of the shaft, and a guide device provided along the swing trajectory of the putter, wherein the putter head includes a first portion on the heel side, a second portion on the toe side, a connecting portion connecting the first portion and the second portion between their upper portions, and a through hole portion provided below the connecting portion and at a position sandwiched between the first portion and the second portion, penetrating from a face surface of the putter head to the rear, and the guide device has a convex portion that protrudes upward from an installation position and is disposed within the space of the through hole portion, the convex portion extends along the swing trajectory, the heel side of the through hole portion is inclined in an arc shape toward the heel side at the rear with respect to a direction perpendicular to the face surface, and the toe side side of the convex portion is formed in an arc shape that protrudes toward the toe side at the center in the front-to-rear direction and becomes closer to the heel side as it approaches both ends in the front-to-rear direction.

[0011] As a result, even if the putter head swings in an arc shape in accordance with the toe side of the guide device, the heel side of the through hole is inclined in an arc shape toward the heel side at the rear, so the heel side side of the guide device will not collide with the putter head. This allows the player to learn a swing that creates a natural arc shape for the putter head. [Brief description of the drawings]

[0012] [Figure 1] Front view of a practice putter. [Diagram 2] FIG. [Diagram 3] Front view of a putter head. [Figure 4] FIG. [Diagram 5] A diagram showing the trajectory of a putter head. [Figure 6]4(a) and (b) are diagrams showing the passing manner of a golf ball in a comparative example, and (c) and (d) are diagrams showing the passing manner of a golf ball in this embodiment. FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a practice putter and a putting practice tool according to the present disclosure will be described in detail with reference to the drawings.

[0014] Fig. 1 is a front view of a practice putter 10. As shown in Fig. 1, the practice putter 10 includes a rod-shaped shaft 11, a putter head 12 provided at the tip end side of the shaft 11, and a grip 13 provided at the base end side of the shaft 11.

[0015] As shown in Figures 2 and 3, the putter head 12 comprises a first portion 21 on the heel side, a second portion 22 on the toe side, a connecting portion 23 connecting the first portion 21 and the second portion 22 between their upper portions (top side), and a through hole portion 26 located below the connecting portion 23 and sandwiched between the first portion 21 and the second portion 22, and penetrating from the face surface 24 of the putter head 12 to the rear (the so-called cavity 25 side).

[0016] That is, as shown in FIG. 3, the putter head 12 has a shape (approximately arched shape) in which a recess for passing a ball is provided at the approximate center of the lower side (sole side). As shown in FIG. 3, when the putter head 12 is viewed from the front, the through-hole portion 26 has a curved shape that is convex upward. The through-hole portion 26 is formed to a size that allows the golf ball 100 shown by the broken line to pass through. In other words, the height dimension L10 of the through-hole portion 26 (the dimension from the sole to the connecting portion 23) is larger than the diameter of the golf ball 100. As long as the golf ball 100 can pass through, the shape of the through-hole portion 26 when viewed from the front may be changed arbitrarily, and may be, for example, a square hole when viewed from the front.

[0017] Here, the shape of the through hole portion 26 formed in the putter head 12 will be described in detail. Fig. 4 is a lateral end view showing the through hole portion 26 of the putter head 12. Fig. 4 also shows a schematic diagram of the first portion 21 and the second portion 22. In Fig. 4, the upper side is the toe side, the lower side is the heel side, the left side is the face surface 24 side, and the right side is the cavity 25 side.

[0018] 4, the toe side of the through-hole portion 26 is formed to extend in a direction perpendicular to the face surface 24. In other words, the side surface 21a of the through-hole portion 26 on the first portion 21 side is formed to be perpendicular to the face surface 24.

[0019] On the other hand, the heel side of the through hole portion 26 is inclined in an arc shape toward the heel side at the rear with respect to the direction perpendicular to the face surface 24. More specifically, the heel side of the through hole portion 26 extends in a direction perpendicular to the face surface 24 from the face surface 24 to a rear intermediate position L1, and is inclined in an arc shape from the intermediate position L1. Note that the intermediate position L1 can be arbitrarily changed within a range of 1 mm to 45 mm from the face surface 24.

[0020] In other words, the side surface of the second portion 22 of the through hole portion 26 is composed of a first side surface 22a formed in a flat shape perpendicular to the face surface 24 from the face surface 24 to the midpoint L1, and a second side surface 22b curved inwardly and bent toward the heel side from the midpoint L1 to the rear (the side of the cavity 25).

[0021] Next, the method of using and the effect of this practice putter 10 will be described. With the golf ball 100 placed on the ground, the swing is practiced so as to pass the golf ball 100 through the through-hole portion 26 provided in the putter head 12. As described above, the through-hole portion 26 is provided in the approximate center of the putter head 12 and is provided so as to be approximately perpendicular to the face surface 24. Therefore, if the position of the ball 100 and the through-hole portion 26 is misaligned during the swing, or if the face surface 24 faces to the right with respect to the swing trajectory (so-called face surface 24 is open), or if the swing is not performed correctly, the golf ball 100 will not pass through the through-hole portion 26 and will collide with the putter head 12 and move. As a result, the golf ball 100 can be practiced so as to pass through the through-hole portion 26 without moving, thereby acquiring a correct swing.

[0022] Incidentally, since the lie angle of the practice putter 10 is 80 degrees or less, when the user holds the practice putter 10, the putter head 12 is usually placed at a position a certain distance away from the user. When the practice putter 10 is swung in this state, the swing trajectory Y11 (horizontal trajectory) of the putter head 12 generally moves in a circle around the spine, as shown in Figure 5. In other words, even with a correct swing, the putter head 12 does not usually move in a straight line but moves in a gentle circle.

[0023] For this reason, if the through-hole portion 126 is perpendicular to the face surface 24 from the face surface 24 to the rear (cavity 25) like the through-hole portion 126 of the comparative example shown in Fig. 6(a)(b), the following problem occurs. As shown in Fig. 6(a), even if the face surface 24 is straight with respect to the swing trajectory Y11 (even if the face surface 24 is not open), that is, even if a correct impact is made, as shown in Fig. 6(b), the putter head 12 makes a circular motion, so that if the face surface 24 is kept straight (correct state) with respect to the swing trajectory Y11, the golf ball 100 moves relatively to the heel side with respect to the putter head 12, and there is a possibility that the golf ball 100 collides with the heel side surface of the through-hole portion 126 at the rear side of the putter head 12 and moves. Therefore, if a practice putter of such a comparative example is used for practice, there is a possibility that the face surface 24 may become habitually open.

[0024] Therefore, in this embodiment, as described above, the heel side of the through-hole portion 26 is formed to be inclined in an arc toward the heel side at the rear with respect to the direction perpendicular to the face surface 24. As a result, even if the face surface 24 is straightened with respect to the swing trajectory Y11 at the start of the passage and maintained in this state as shown in Fig. 6(c), the rear side of the through-hole portion 26 is inclined in an arc toward the heel side as shown in Fig. 6(d), so that the golf ball 100 can pass without colliding with the heel side surface of the through-hole portion 26. In other words, even if the putter head 12 makes a circular motion with the face surface 24 in a straight state and the golf ball 100 moves relatively to the heel side with respect to the putter head 12 at the rear side of the through-hole portion 26, the golf ball 100 does not collide with the putter head 12 because the rear side of the through-hole portion 26 is inclined in an arc toward the heel side.

[0025] This allows the golfer to learn the correct swing form by swinging the practice putter 10 so that the golf ball 100 passes through the through-hole portion 26.

[0026] Incidentally, the ideal swing trajectory Y11 in the horizontal direction is closer to an ellipse that is almost straight in front of the body, rather than a perfect circle, as shown in FIG. 5. Therefore, the heel side of the through hole portion 26 is extended in a direction perpendicular to the face surface 24 from the face surface 24 to the intermediate position L1 at the rear, and is inclined in the shape of a circular arc from the intermediate position L1. As a result, unless the putter head 12 is moved straight until the golf ball 100 passes through the face surface 24 and reaches the intermediate position L1, that is, directly in front of the body, the golf ball 100 may collide with the first side surface 22a on the heel side of the through hole portion 26. Therefore, the putter head 12 can be practiced to swing straight from the face surface 24 to the intermediate position L1 at the rear along the ideal swing trajectory Y11 in the horizontal direction. Therefore, the putting technique of hitting the ball straight at the center near the impact can be acquired.

[0027] If the distance from the face surface 24 to the rear intermediate position L1 is too short, the straightness at the time of impact cannot be maintained, and if it is too long, the swing becomes unnatural. Therefore, in this embodiment, the length from the face surface 24 to the intermediate position L1 is set to 1 mm or more and 45 mm or less.

[0028] Also, the swing arc differs from person to person, with some people having swings that are closer to a straight trajectory. In such a case, if the toe side of the through-hole portion 26 is made to have an arc shape toward the heel side at the rear, like the heel side, there is a possibility that the golf ball 100 will collide with the toe side of the through-hole portion 26. Therefore, in this embodiment, the toe side of the through-hole portion 26 is extended in a direction perpendicular to the face surface 24. This allows even people with swing trajectories that are closer to a straight trajectory to use it for practice.

[0029] (Modification) The configuration of the above embodiment may be partially modified. Modifications will be described below.

[0030] In the above embodiment, putting practice is performed by swinging so as to pass the golf ball 100, but it is not necessary for something other than the golf ball 100 to pass.

[0031] For example, as shown in FIG. 7, a guide tool 70 may be used that is provided along the swing trajectory of the practice putter 10. The guide tool 70 has a convex portion 71 that protrudes upward from the installation position (installation surface) and is disposed in the space of the through-hole portion 26, and the convex portion 71 is formed to extend along the swing direction. That is, the guide tool 70 has a convex portion 71 that is substantially rectangular parallelepiped-shaped and extends long in a predetermined direction, and the width L11 of the convex portion 71 is narrower than the width of the through-hole portion 26 and is approximately the same as the diameter of the golf ball 100. In addition, the height shape of the convex portion 71 is recessed in the center so as to draw an arc shape in the longitudinal direction in accordance with the swing trajectory Y10 (vertical trajectory). That is, the height dimension L12 of the convex portion 71 is formed to be the lowest at the longitudinal center portion, and the height dimension L13 of the convex portion 71 at both longitudinal end portions is higher than the height dimension L12. The height dimension L12 of the protrusion 71 in the longitudinal center portion is approximately the same as the diameter of the golf ball 100.

[0032] Fig. 8 shows a plan view of the guide instrument 70 as viewed from above. In Fig. 8, the upper side is the toe side, the lower side is the heel side, the left side is the face surface 24 side, and the right side is the cavity 25 side.

[0033] As shown in Fig. 8, when the guide instrument 70 is viewed from above, the heel-side side surface 72 of the convex portion 71 is formed in a flat shape perpendicular to the face surface 24. On the other hand, the toe-side side surface 73 of the convex portion 71 is formed in an arc-shaped curved surface that is convex toward the toe side at the center in the longitudinal direction. In other words, the toe-side side surface 73 is formed in an arc-shaped shape that protrudes toward the toe side at the center in the front-rear direction (longitudinal direction) and becomes closer to the heel side at both ends in the front-rear direction. It is desirable that the toe-side side surface 73 is a curved surface that follows the swing trajectory Y11 of the putter head 12 when swung correctly, more specifically, the trajectory of the first portion 21 on the toe side.

[0034] As a result, as shown by the dashed line in Fig. 8, by swinging the toe-side side surface 21a of the through-hole portion 26 along the toe-side side surface 73, it becomes possible to practice swinging along the correct swing trajectory Y11. Note that the heel-side side surfaces 22a, 22b of the through-hole portion 26 are inclined in an arc shape toward the heel side at the rear side. Therefore, even if the toe-side side surface 21a of the through-hole portion 26 is swung along the toe-side side surface 73 as shown in Fig. 8, the heel-side side surface 72 and the putter head 12 do not interfere with each other.

[0035] Similarly, since the upper surface of the convex portion 71 is formed along the vertical swing trajectory Y10, by swinging so that the through hole portion 26 follows the upper surface of the convex portion 71, it is possible to practice swinging along the correct swing trajectory Y10.

[0036] As a result, even if the putter head 12 swings in an arc-shaped trajectory in accordance with the toe-side side surface 73 of the convex portion 71 of the guide device 70, the heel side of the through-hole portion 26 is inclined in an arc-shaped manner toward the heel side at the rear, so that the heel-side side surface 72 of the guide device 70 will not collide with the putter head 12. This makes it possible to learn a swing in which the putter head trajectory naturally follows an arc.

[0037] The shape of the convex portion 71 is not limited to a rectangular shape and may be changed as desired. For example, the cross-sectional shape may be a trapezoid or a semicircular shape. As long as there is no interference between the putter head 12 and the heel-side side surface 72, the heel-side side surface 72 is not limited to a flat surface and may be changed as desired. For example, it may be formed of a curved surface.

[0038] The combination of the guide device 70 and the practice putter 10 in this modified example corresponds to a putting practice tool.

[0039] In the above embodiment, as shown in Fig. 9, a practice tool 80 in which a ball 81 is fixed to a base 82 may be used instead of the golf ball 100. The ball 81 has substantially the same shape as the golf ball 100, and the base 82 is a flat plate. The practice tool 80 is made of a material, for example, a resin. When practicing, the ball 81 may be swung so that it passes through the through-hole portion 26.

[0040] According to this practice tool 80, the ball 81 of the practice tool 80 does not roll even when it hits the putter head 12. Therefore, the trouble of going to pick up the golf ball 100 is eliminated, and practice can be performed efficiently. [Explanation of symbols]

[0041] 10...practice putter, 11...shaft, 12...putter head, 13...grip, 21...first part, 22...second part, 23...connecting part, 24...face surface, 25...cavity, 26...through hole part, 70...guide device, 71...projection part, 80...practice device, 100...golf ball.

Claims

1. A practice putter having a shaft, a putter head provided on a tip end side of the shaft, and a grip provided on a base end side of the shaft, The putter head is A first portion on a heel side; A second portion on the toe side; a connecting portion connecting the first portion and the second portion between their upper portions; a through hole portion provided below the connecting portion and between the first portion and the second portion, the through hole portion penetrating from a face surface of the putter head to the rear; Equipped with the heel side of the through hole portion is inclined in an arc shape toward the heel side at the rear with respect to a direction perpendicular to the face surface, Practice putter.

2. The heel side of the through hole portion is the face extends in a direction perpendicular to the face from the face to the intermediate position at the rear, The arc-shaped incline is formed from the intermediate position.

2. The practice putter of claim 1.

3. The length from the face surface to the intermediate position is 1 mm or more and 45 mm or less.

3. The practice putter of claim 2.

4. The toe side of the through hole portion is Extending in a direction perpendicular to the face surface, 2. The practice putter of claim 1.

5. A practice putter including a shaft, a putter head provided on a tip end side of the shaft, and a grip provided on a base end side of the shaft; A guide device provided along a swing path of the putter; A putting training device comprising: The putter head is A first portion on a heel side; A second portion on the toe side; a connecting portion connecting the first portion and the second portion between their upper portions; a through hole portion provided below the connecting portion and between the first portion and the second portion, the through hole portion penetrating from a face surface of the putter head to the rear; Equipped with The guide instrument has a protrusion that protrudes upward from an installation position and is disposed in the space of the through-hole portion, The protrusion extends along the swing path, the heel side of the through hole portion is inclined in an arc shape toward the heel side at the rear with respect to a direction perpendicular to the face surface, The toe-side side surface of the protrusion is formed in an arc shape that protrudes toward the toe side at a center portion in the front-rear direction and becomes closer to the heel side toward both ends in the front-rear direction. Putting practice equipment.

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