Putting practice equipment

Abstract

To provide a putting training tool that indicates the angle of the face surface of a putter head during putting action and allows a user to easily recognize the inclination of the face surface. [Solution] A putting practice device for golf putters, comprising a guide fixed to the putter shaft and moving integrally with the shaft, and a fixing part for fixing the guide to the shaft, wherein the guide is fixed above the putter head, extends perpendicular to the face of the head, and indicates the angle of the face during the putting action.

Description

[Technical Field]

[0001] The present invention relates to a putting practice device. [Background technology]

[0002] As an equipment for practicing putting in golf, for example, a putting practice equipment has been proposed, which is characterized by having "a pair of guide sections arranged parallel to each other, a first bridge section extending across one end of the pair of guide sections, and a second bridge section extending across the other end of the pair of guide sections, and which is surrounded by the pair of guide sections, the first bridge section, and the second bridge section to form an opening with open top and bottom" (see claim 1 of Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-036115 Summary of the Invention [Problem to be solved by the invention]

[0004] The putting practice device in Patent Document 1 is placed on an indoor putting mat or an actual green (such putting mats, greens, ground, floors, etc. used in putting practice will hereinafter be collectively referred to as the "practice surface"), and the putter is inserted between a pair of guide parts, and the squareness of the putter face is checked using the putter face checkpoints marked on the guide parts (see Figure 3 in Patent Document 1).

[0005] The putting training device of Patent Document 1 is excellent in that it allows the perpendicularity of the face surface relative to the guide portion on the practice surface to be visually checked, but is not suitable for sensing the inclination of the face surface during the putting motion. Also, although the putting training device of Patent Document 1 can be disassembled for storage and portability, it has a large number of parts and is not necessarily easy to assemble, store, or carry.

[0006] The present invention is intended to solve at least one of the above problems, and aims to provide a putting training device that indicates the angle of the putter head face during the putting motion, making it easier for the user to recognize the inclination of the face face. [Means for solving the problem]

[0007] One aspect of the present invention for solving the above problem is a putting practice device for golf putters, which includes a guide fixed to the putter shaft and moving integrally with the shaft, and a fixing portion for fixing the guide to the shaft, wherein the guide is fixed above the putter head, extends perpendicular to the face of the head, and indicates the angle of the face during the putting motion.

[0008] The guide may be formed of a long, straight rod-shaped member or a plate-shaped member.

[0009] The fixing portion may include a fitting portion having a through hole for fitting onto the outer periphery of the shaft, and the fitting portion may have an opening that serves as a passage when fitting, perpendicular to the penetration direction of the through hole.

[0010] The fixing portion may have a connecting portion on the opposite side of the opening for connecting to the guide, and the connecting portion may have a through hole for inserting the guide in a direction perpendicular to the penetrating direction of the through hole of the fitting portion and the opening direction of the opening.

[0011] The fixing portion may be configured so that the opening of the fitting portion can be opened and closed.

[0012] The fixing portion may be configured such that the fitting portion and the connecting portion are integrally formed. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide a putting training device that indicates the angle of the face of the putter head during a putting motion, making it easier for the user to recognize the inclination of the face.

[0014] Problems, configurations, and effects other than those described above will become apparent from the following description of the embodiments. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a diagram illustrating an outline of a putting practice device and a putting practice method according to an embodiment of the present invention. [Figure 2] 1 is a schematic diagram illustrating the effects of a putting training device according to an embodiment of the present invention. [Figure 3] 1 is a diagram showing an example of a putting training device according to an embodiment of the present invention; [Figure 4] 10A and 10B are diagrams showing another example of a putting training device according to an embodiment of the present invention. [Figure 5] 10A and 10B are diagrams showing another example of a putting training device according to an embodiment of the present invention. [Figure 6] 10A and 10B are diagrams showing another example of a putting training device according to an embodiment of the present invention. [Figure 7] 10A and 10B are diagrams showing another example of a putting training device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, examples of embodiments of the present invention will be described with reference to the drawings. Note that components common to the following embodiments will be assigned the same reference numerals as those previously mentioned, and their description may be omitted. Furthermore, when referring to the shape, positional relationship, etc. of components, etc., it is understood that the reference numerals include those that are substantially similar or similar to the shape, etc., unless otherwise specified or when it is clearly considered otherwise in principle.

[0017] 1A and 1B are diagrams for explaining an outline of a putting training device and a putting training method according to one embodiment of the present invention, in which (a) is a schematic diagram of a user, putter, and putting training device during practice, observed from the left (to the left of the user, from the face side of the head), and (b) is a schematic diagram observed from the front (in front of the user). Note that the ball used during practice is not shown.

[0018] As shown in the figure, a golf putter P has a shaft P1, a head P2 connected to the bottom end of the shaft P1, and a grip P3 connected to the top end of the shaft P1 and held by a user. Note that there are putters P in which the bottom end of the shaft P1 is directly connected to the head P2 as in the illustrated example, and in which there is a curved (bent) neck between the bottom end and the head P2 and the bottom end is connected to the head via the neck, and the present invention is suitable for either.

[0019] Putting in golf is a shot where you aim to put the ball in the cup after it lands on the green on a golf course. The swing method and ball trajectory are different from shots with other clubs, and it requires unique practice. Putting requires a more delicate feel than shots with other clubs, and image and feeling are more important. The ideal putting shot is to imagine the club swinging back and forth at a consistent speed, like a pendulum. For example, it is considered desirable to form a triangle (with straight elbows and lines connecting both shoulders to the grip) or a pentagon (with bent elbows and lines connecting both shoulders, elbows, and the grip) and maintain that shape consistently from start to finish.

[0020] A putting training device 1 according to one embodiment of the present invention indicates the angle of the face surface of the head P2 during a putting motion, making it easier for the user to recognize the inclination of the face surface.

[0021] The putting training device 1 is fixed to the putter P so as not to move, and moves integrally with the putter P during practice. More specifically, the putting training device 1 is fixed to the shaft P1, and is fixed above the head P2 at a distance D from the top end of the head P2. The distance D is desirably 10 cm or more. The upper limit of the distance D is 1 / 2 or less, and preferably 1 / 3 or less, of the total length of the putter. The position of the putting training device 1 is based on the center of a guide 61, which will be described later.

[0022] Figure 2 is a schematic diagram illustrating the effects of a putting training device according to one embodiment of the present invention, observed from the perspective of a user in the position shown in Figure 1. For ease of explanation, solid portions of the putting training device 1 are shown as filled in (the same applies to the following figures).

[0023] The putting training tool 1 includes a guide 61 that is fixed to the shaft P1 and moves integrally with the shaft P1, and a fixing portion 62 for fixing the guide 61 to the shaft P1. The putting training tool 1 is detachably fixed to the shaft P1 of the putter P.

[0024] The guide 61 is a long rod or plate, and a curved shape is not desirable; it is configured as a straight line with a uniform diameter or thickness. This makes it easier for the user to recognize the inclination of the face surface P21. The length of the guide 61 is equal to or greater than the left-right width (horizontal width) of the head P2, for example, 10 cm or more, and more preferably 12 cm or more. The length of the guide 61 is sufficient as long as it makes it easy to recognize the inclination of the face surface P21; if the guide 61 is too long, it may affect the putting motion and be inconvenient to assemble, store, and keep. From this perspective, the upper limit of the length of the guide 61 is, for example, about 30 cm, preferably 25 cm, and more preferably 20 cm.

[0025] The guide 61 is preferably disposed behind the shaft P1 as shown in the figure so as not to obstruct the view of the head P2 or the portion of the shaft P1 near the lower end. However, the guide 61 may be disposed in front of the putting training device 1 as a whole if the width in the front-to-rear direction (front-to-rear width) is narrow and the face surface P21 and the like can be viewed even when the guide 61 is disposed in front of the shaft P1.

[0026] In a fixed state, the guide 61 extends in the direction of the arrow G shown in the figure, perpendicular to the face surface P21 (or an extension thereof, depending on the user's posture and line of sight). That is, the guide 61 is fixed to the shaft P1 so that its longitudinal direction is perpendicular to the face surface P21.

[0027] When practicing the above-described ideal pendulum-like putting, putting is performed while keeping the face P21 of the head P2 perpendicular to the left-right arrow F shown in the figure and without shifting its position in the front-to-back direction. If the face P21 of the putting training device 1 tilts even slightly, the shaft P1 also rotates at the same time, and the guide 61 also rotates accordingly, so that the user can immediately and intuitively recognize that the face P21 has tilted and the direction of the tilt (left or right relative to the direction of the ball's launch).

[0028] The above-described conventional putting practice device is placed on a practice surface and guides the user to hit the ball so that the putter face P21 is perpendicular, using putter face checkpoints marked on the guide. However, even when attempting to hit the ball so that the putter face P21 is perpendicular, the actual putting practice may result in the face P21 being tilted rather than perpendicular. This tilt can be recognized by observing the tilt of the tip end surface P22 of the head P2. However, the shape of the tip end surface P22 varies depending on the putter P, and is often not linear, making it difficult to recognize the degree and direction of tilt. Furthermore, even if the tip end surface P22 is linear, the distance between the user's eyes and the head P22 during the practice practice is long, and the user may not be able to see the tip end surface P22 clearly enough to recognize the tilt.

[0029] In contrast, in the putting training device 1, the guide 61 is fixed to the shaft P1 perpendicular to the face surface P21 and moves integrally therewith, so instead of the tip surface P22, it indicates the angle of the face surface of the head P2 during the putting motion, allowing the user to recognize the tilt of the face surface. The guide 61 is linear and located a distance D from the top end of the head P2, so the user can clearly recognize and feel the degree and direction of tilt. Furthermore, the guide 61, which is fixed at a distance from the top end of the head P2, is thought to react more strongly to the actual tilt of the head P2 and to react to even slight movements, allowing the user to feel it more sensitively.

[0030] In either case of the ideal pendulum-like putting practice described above, where the elbows are kept straight and lines connecting both shoulders to the grip form a triangle, or where the elbows are bent and lines connecting both shoulders, both elbows and the grip form a pentagon, the rotation of guide 61 during movement is thought to represent the tilt of the face surface due to the rotation of both shoulders, or both shoulders and both elbows, and therefore the user can intuitively sense the tilt of the face surface in relation to the movement of their body through the rotation of guide 61.

[0031] Conventional putting training devices require the device to be placed on the practice surface at all times during practice, making it difficult to say that the training is close to the real thing. In contrast, with putting training device 1, only the head P2 and ball E are present on the practice surface, just like in a real game, so it is possible to practice in conditions that are almost the same as in a real game.

[0032] It should be noted that, at first, practicing with the putting practice tool 1 can be done by placing a stick such as an alignment stick on the practice surface (in combination with the tool) and actually seeing the arrow F rather than just imagining it, and once you are able to visualize the arrow F, you can start practicing with the putting practice tool 1 alone.

[0033] As described above, when the guide 61 is disposed in front of the shaft P1, the putting training device 1 needs to be configured with a narrow front-to-rear width so that the head P2 can be seen. Also, when the guide 61 is disposed behind the shaft P1, it is desirable to configure the front-to-rear width narrow in order to provide a more realistic training experience and to reduce the impact on the user's movements caused by disposing the guide 61 closer to the user. From this perspective, an example of a putting training device 1 with a compact and simple structure will be described below.

[0034] FIG. 3 shows an example of a putting training device according to one embodiment of the present invention, where (a) is a top view showing each component, (b) is a side view thereof, and (c) is a top view showing the state of fixation to the shaft.

[0035] In the putting training device 1 of this example, the guide 61 is composed of a long, straight rod-like member or plate-like member that is separate from the fixing part 62.

[0036] The fixing portion 62 includes a fitting portion 621 for fitting onto the outer periphery of the shaft P1. The fitting portion 621 has a through hole (first through hole) I that penetrates in the vertical direction, and an opening J that opens in one direction (forward in the illustration) perpendicular to the penetrating direction of the through hole I. The opening J is a notch that serves as a passage for the shaft P1 when fitted. The fixing portion 62 includes a connecting portion 622 on the opposite side of the opening J for connecting to the guide 61. In one example, the fixing portion 62 has the fitting portion 621 and the connecting portion 622 integrally formed.

[0037] As an example, the fitting portion 621 is configured in a C-shaped ring shape when viewed from above. In the illustrated example, the fitting portion 621 is configured so that a peripheral wall of uniform thickness when viewed from above surrounds the through-hole I, and has a C-shaped inner peripheral wall surface and a concentric outer peripheral wall surface. The opening J is a gap between both ends of the C-shaped peripheral wall.

[0038] The entire fitting portion 621 or the fixing portion 62 is preferably made of an elastic material. For example, the entire fitting portion 621 or the fixing portion 62 is made of a material such as rubber or silicone rubber. The left-to-right width of the opening J is smaller than the diameter of the shaft P1, so that the shaft P1 cannot easily escape. The elasticity of the fitting portion 621 allows it to deform when fitted to allow the shaft P1 to pass through, even when the left-to-right width of the opening J is small, and it returns to its original state after passing through. Furthermore, being made of an elastic material improves the flexibility of the entire fitting portion 621 or the fixing portion 62. The fitting portion 621 can be fixed simply by fitting it onto the shaft P1 through the opening J, and can be removed simply by pulling the fixing portion 62 or the shaft P1, making attachment and detachment simple and easy.

[0039] The connecting portion 622 is located approximately in the center of the fitting portion 621 in the left-right direction, and as an example, is provided so as to protrude from the outer periphery of the fitting portion 621. The method of connecting the guide 61 to the connecting portion 622 is not limited as long as it is detachable, and may be, for example, by fitting, magnetic attraction, or the like. In the illustrated example, a groove or notch into which the connecting portion 622 is fitted is provided approximately in the center of the guide 61 so as to fit with the connecting portion 622. Note that the connecting portion 622 may also be provided with a groove or notch into which the guide 61 is fitted so as to fit with the guide 61. In the case of attraction, the guide 61 is provided with a magnetic material or magnet at least in the center, and the connecting portion 622 is provided with a magnet or magnetic material, and they are connected by attraction to each other. Note that both fitting and attraction may be used. A plurality of connecting portions 622 may be provided on the outer periphery at the rear of the fitting portion 621.

[0040] The putting training tool 1 of this example is fixed to the shaft P1 by first connecting the guide 61 to the connecting part 622 and then fitting the entire putting training tool 1 onto the shaft P1. Alternatively, the fitting part 621 may be fitted onto the shaft P1 first, and then the guide 61 may be connected to the connecting part 622.

[0041] The putting training device 1 of this example can be constructed from two components, significantly reducing the number of components. Furthermore, the entire device can be assembled in a single operation, and the shaft P1 can be fixed in a single operation, making it extremely easy to use. Because the putting training device 1 of this example has a simple structure, it can be constructed with a small front-to-back width. The front-to-back width T is, for example, equal to or less than the front-to-back width (length) of the head P2.

[0042] Figure 4 shows another example of a putting training device according to one embodiment of the present invention, where (a) is a top view showing each component, (b) is a side view, and (c) is a top view showing the state of fixation to the shaft. The fixing part 62 of this example differs from the example of Figure 3 above mainly in that it is configured in a block shape with no protrusions on the outer periphery. Below, the common configuration and effects will be explained with reference to the previous example, and differences will be mainly explained.

[0043] The fixing part 62 in this example has, with the illustrated imaginary line (dashed line) as the boundary, a fitting part 621 (front block part) that houses the shaft P1 at the front and a connecting part 622 (rear block part) at the rear for connecting the guide 61. Because the fixing part 62 in this example is configured in a block shape with no protrusions on the outer periphery, it is relatively sturdy and can prevent damage due to collisions with the protruding connecting part 622. Furthermore, because the connecting part 622 can be configured over the entire length of the left-right width, the connection with the guide 61 is more stable.

[0044] The fitting portion 621 in this example is configured so that a peripheral wall of non-uniform thickness in top view surrounds the through-hole I, and has a C-shaped inner peripheral wall surface and a substantially rectangular outer peripheral wall surface. As in the example of Figure 3, the fitting portion 621 is preferably made of an elastic body, and the left and right width of the opening J is smaller than the diameter of the shaft P1 so that the shaft P1 cannot easily slip out.

[0045] The connecting portion 622 has a through hole (second through hole) K that penetrates in a direction (left-right direction in the illustrated example) perpendicular to the penetration direction of the through hole (first through hole) I (up-down direction in the illustrated example) and the opening direction of the opening J (forward in the illustrated example). The through hole K is a hole for inserting the guide 61, and in the illustrated example, the entire circumference is surrounded by a peripheral wall in side view and does not have an opening perpendicular to the penetration direction. By configuring the connecting portion 622 without an opening, even a thin (small outer circumference) guide 61 can be prevented from slipping out of the connecting portion 622. It goes without saying that the connecting portion 622 may have an opening perpendicular to the penetration direction of the through hole K so that the guide 61 can be fitted through the opening.

[0046] The putting training device 1 of this example is fixed to the shaft P1 by first inserting the guide 61 into the connecting portion 622, and then fitting the entire putting training device 1 onto the shaft P1. Alternatively, the fitting portion 621 may be fitted onto the shaft P1 first, and then the guide 61 may be inserted into the connecting portion 622. This example can also be configured with two components, significantly reducing the number of components. This example is also very simple, as the device can be assembled in one operation and fixed to the shaft P1 in one operation. This example also has a simple structure, so the front-to-back width can be made small. The front-to-back width T is, for example, equal to or less than the front-to-back width (length) of the head P2.

[0047] The inner diameter of the connecting portion 622 (the diameter of the through hole K) is equal to or larger than the diameter of the guide 61. From the viewpoint of facilitating the operation of inserting the guide 61, the diameter of the through hole K may be made larger than the diameter of the guide 61, and a magnet may be provided on one side and a magnetic body on the other to attract and prevent the guide 61 from coming out. The through hole K is configured according to the outer shape of the guide 61, and when the guide 61 is plate-shaped, it is configured to have the same shape and a size equal to or larger than the plate-shaped guide 61. In this case, the through hole K may also be made slightly larger to prevent the guide 61 from coming out by attracting it.

[0048] 5 shows another example of a putting training device according to one embodiment of the present invention, where (a) is a top view showing each component, (b) is a side view, and (c) is a top view showing the state of fixation to the shaft. Fixation part 62 of this example differs from the example of FIG. 3 above mainly in that opening J of fitting part 621 can be opened and closed. Below, the common configuration and effects will be explained with reference to the previous example, and differences will be mainly explained.

[0049] The putting training device 1 of this example is composed of a pair of clamping members whose fixing portions 62 are movably connected to each other. Each clamping member is configured approximately symmetrical with respect to a center line extending in the front-to-rear direction, and has an arc portion 6211 at one end that forms approximately half of the peripheral wall of the fitting portion 621, and a handle portion 6212 at the other end. The pair of clamping members are connected to each other in a substantially X-shaped intersection by a pin portion 6213 between the arc portion 6211 and the handle portion 6212, and are further connected by a biasing means (e.g., a torsion coil spring or a leaf spring) not shown that biases the handle portions 6212 in opposing directions (clamping directions), so that the opening J is closed in the initial state. When fitting onto the shaft P1, the handle portions 6212 are grasped (pinched) in a pinching direction to separate the arc portions 6211, and the opening J is opened as shown to fit onto the shaft P1, and then the handle portions 6212 are released to secure them to the shaft P1.

[0050] The connecting portion 622 is provided so as to be linearly connected to the handle portion 6212 of one of the clamping members. The method of connecting the guide 61 to the connecting portion 622 is not limited as long as it is detachable, and may be, for example, by fitting, suction, or the like, as in the example of FIG. 3 described above.

[0051] The putting training device 1 of this example is extremely simple, as the pair of clamping members that make up the fixing portion 62 are connected, allowing the entire device to be assembled in a single operation and the device to be fixed to the shaft P1 in a single operation. Also, because of its relatively simple structure, the front-to-back width can be made small, and can be made equal to or smaller than the front-to-back width (length) of the head P2.

[0052] 6 shows another example of a putting training device according to one embodiment of the present invention, where (a) is a top view showing each component, (b) is a side view, and (c) is a top view showing the state of fixation to the shaft. Fixation part 62 of this example differs from the example of FIG. 5 above mainly in that handle part 6212 also serves as connecting part 622. In the following, the common configuration and effects will be described with reference to the previous example, and differences will be mainly explained.

[0053] In the putting training device 1 of this example, the handle portion 6212 of each clipping member has a through hole (second through hole) K that penetrates in a direction perpendicular to the penetration direction of the through hole (first through hole) I and the opening direction of the opening J, and also serves as the connecting portion 622. In the illustrated example, the through hole K is surrounded on its entire periphery when viewed from the side and does not have an opening perpendicular to the penetration direction. By configuring the connecting portion 622 without an opening, even a thin (small outer periphery) guide 61 can be prevented from escaping from the connecting portion 622. Needless to say, it may have an opening perpendicular to the penetration direction of the through hole K so that the guide 61 can be fitted through the opening. The diameter or size of the through hole K can be configured in relation to the guide 61, as in the example of Figure 4.

[0054] The putting training device 1 of this example has a simpler structure because the handle portion 6212 also serves as the connecting portion 622. In this example, the fixing to the shaft P1 is performed by first opening the opening J and fitting the shaft P1, and then inserting the guide 61 into the connecting portion 622 (handle portion 6212).

[0055] 7 shows another example of a putting training device according to one embodiment of the present invention, where (a) is a top view showing each component, (b) is a side view, and (c) is a top view showing the state of fixation to the shaft. The putting training device 1 of this example differs from the example of FIG. 3 above mainly in that it is integrally constructed as a single component. Below, the common configuration and effects will be explained with reference to the previous example, and differences will be mainly explained.

[0056] The putting training device 1 of this example is composed of a single member having a guide 61 at the rear and a fixing portion 62 at the front for fixing the guide 61 to the shaft P1. The guide 61 is a long, straight, rod-like or plate-like portion. The fixing portion 62 has a fitting portion 621 that is a ring-shaped portion having a generally C-shape, and has a through-hole I that penetrates in the vertical direction and an opening J that opens in one direction perpendicular to the penetration direction of the through-hole I. The fixing portion 62 has a protruding connecting portion 622 at approximately the center of the outer periphery of the fitting portion 621 on the opposite side from the opening J, and the rear end of the connecting portion 622 is connected to approximately the center of the guide 61. Note that the fitting portion 621 of the fixing portion 62 of the putting training device 1 of this example may be configured as shown in FIG. 4. In this case, the connecting portion 622 is configured as a block without a through-hole K, and the guide 61 is configured as a pair of rods or plates extending left and right from the left and right end faces of the connecting portion 622, respectively.

[0057] In the putting training device 1 of this example, the guide 61 and the fixing part 62 are integrally formed, which eliminates the need for assembly and eliminates the risk of the guide 61 falling off the connecting part 622. Also, it is extremely easy to use as it only requires one operation of fitting the fitting part 621 onto the shaft P1. The putting training device 1 of this example is preferably made of an elastic body.

[0058] Although examples of the present invention have been described above, these are merely examples of the present invention, and the present invention is not limited to these. The present invention includes combinations of the above-described embodiments and their modifications, as well as various other modifications. Various additions, modifications, and partial deletions are possible within the scope of the conceptual idea and spirit of the present invention, which is derived from the content defined in the claims and their equivalents. [Explanation of symbols]

[0059] 1...putting practice device, 61...guide, 62...fixing portion, 621...fitting portion, 6211...arc portion, 6212...handle portion, 6213...pin portion, 622...connecting portion, I...through hole (first through hole), J...opening, K...through hole (second through hole), P...putter, P1...shaft, P2...head, P21...face surface, P3...grip.

Claims

1. A putting practice device for golf putters, A guide that is fixed to the putter shaft and moves together with the shaft; a fixing portion for fixing the guide to the shaft, the guide is fixed above the head of the putter, extends perpendicular to the face surface of the head or an extension of the face surface, and indicates the angle of the face surface during a putting motion; The fixing portion is a fitting portion having a through hole for fitting onto the outer periphery of the shaft and an opening that is perpendicular to the penetrating direction of the through hole and serves as a passage when the shaft is fitted; a connecting portion on the opposite side of the opening for connecting with the guide; The guide is disposed behind the shaft. Putting practice equipment.

2. The guide is composed of a long, straight rod-shaped member or a plate-shaped member.

10. The putting practice device of claim 1.

3. The connecting portion has a through hole for inserting the guide in a direction perpendicular to the penetration direction of the through hole of the fitting portion and the opening direction of the opening.

3. A putting practice device according to claim 1 or 2.

4. The fixing portion has an opening of the fitting portion that can be opened and closed.

3. A putting practice device according to claim 1 or 2.

5. The fixing portion is formed by integrally forming the fitting portion and the connecting portion.

3. A putting practice device according to claim 1 or 2.

Images