JPH09234262A - Putting practice tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a putting practice tool with improved sensitivity improvement to detect the deviation and the deviation degree of a hit ball, by parallelly equipping a pair of rails in symmetry with respect to the virtual axis line to form a section with an arbitrary rail gap shorter than a specific dimension and supporting a ball with the gap of the rails. SOLUTION: A pair of rails 2 and 2 in positions symmetrical with respect to a virtual axis line 1 is constructed to form a gap 3 between the rails 2 and 2. The gap 3 is to support a ball B and is equipped with a section with the width of W arbitrarily set in a range of the gap shorter than or equal to 5mm. For instance, the whole sections of the rails 2 and 2 are allowed to be parallel and to have either same width W along the whole gap 3 or a stepwise changed width. Both rails 2 and 2 in both outsides of the ball support width W are inclined downward so as the hit ball B to be directed to the outsides of rails 2 and 2 by the deviation of the hit ball B immediately when the center of gravity of the hit ball B is deviated off the center of the gap 3. Thus the hit ball deviation can be easily and securely recognized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bat trainer which, in golf, constitutes a means for accurately detecting the deflection of a hit ball hit by a putter to a minute level, and fosters accurate putt technology and concentration.

[0002]

2. Description of the Related Art Heretofore, an artificial turf mat having a line as a guide for a trajectory of a putter swing and a direction of rolling a hit ball has been used as a putt practice tool of a type for actually practicing while hitting a ball.

Further, a putting practice device is known in which a ball is hit on a single rail having a uniformly flat surface, and the hitting ball falls into the grooves on the left and right of the rail to detect the deviation of the hitting ball (Japanese Patent Laid-Open Publication No. 2000-242242). 58-118777).

[0004]

In the conventional artificial turf mat with a line, even if the hit ball deviates from the line to some extent, if the deviation of the hit ball course is within the diameter of the cup, it will be cup-in, and as a result, Tend to be satisfied with,
There is a concern that the disorder of the putt may be insensitive because the practice of pursuing a truly accurate putt while maintaining tension and concentration to correct the disorder of the putt cannot be performed. Therefore, I couldn't acquire the high level of skill and concentration to hit an accurate putt even in an actual round where a mispat is likely to occur due to various environmental conditions and mental influences.

Next, since a conventional bat practice device using rails uses a single rail having a flat surface, the center of gravity of a ball placed on the rail and rolled is It always exists on the surface of the rail, and as a result, if the rail is tilted to the left or right even slightly, the ball placed will fall off the rail without permission, or even if the ball is hit exactly straight, it will move in the tilt direction of the rail. However, since the surface condition of the place where the rail is installed sensitively affects the accuracy of ball hitting trajectory detection, you must pay close attention to the slight surface roughness of the installation place when installing the rail. It is troublesome.

Further, conventionally, in order to accurately position and stabilize the ball in the center of the width of the rail, a ball rolling stopper having a protrusion or a dent is formed on the rail surface to specially restrain the ball. In practice, the place where the ball can be accurately and stably placed on the rail is limited to only the portion provided with the ball rolling stopper.

If a ball is placed at an arbitrary position on the rail where the ball rolling stopper is not provided and a putt is practiced, the positioning of the ball becomes inaccurate. For example, from the center of the rail width to the right. When a ball is placed in a biased position, the margin from the position where the ball is placed to the left edge of the rail increases relatively, while the margin from the position where the ball is placed to the right edge of the rail is relatively large. The width of the ball becomes uneven, resulting in uneven left and right margins. Then, even if the deflection amount to the left is larger than the deflection amount, the deviation from the rail is avoided by the amount of the expanded margin width, and the tendency to be erroneously detected as a straight-ahead impact ball appears. Even if it is a little, it is easy to fall off the rail due to the influence of the reduced rail margin, and a slight deflection tends to be erroneously detected as a large deflection, and the degree of deflection and deflection of the hit ball is detected depending on the launch direction of the ball. There is a drawback in that there is a large variation in sensitivity, and in some cases, erroneous detection occurs as described above, and the distinction between a precisely hit ball and a deflected hit ball is unclear.

Therefore, in the conventional putt practice device, the ball is freely placed on the rail, and the distance from the position where the ball is placed to the tip of the rail (the distance of the rail used for rolling the hit ball) is arbitrarily selected. However, it is impossible to use it to adjust the difficulty level of practice. Therefore, for example, by placing the ball close to the tip of the rail and rolling the ball at a short distance, you can prevent the ball from falling off the rail. It is not possible to perform appropriate training according to the skill level of the putt technique by reducing opportunities and reducing the difficulty level, making it difficult for even inexperienced people to practice relatively easily and gain confidence. It's inconvenient.

Further, the conventional pad practice device is assumed to have only a fixed rail shape, and for example, the rail width is variably adjusted to detect the deflection of a hit ball (that is, the difficulty of practice). There was no concept of putting practice with a wide variable range.

[0010]

The pad practice device of the present invention eliminates the drawbacks of the prior art described above, and a pair of rails are provided so as to establish a symmetrical positional relationship with respect to an imaginary axis. By supporting the ball in the gap formed between the pair of rails, the ball is accurately positioned at the center of the gap, and the center of gravity of the ball is accommodated within the depth of the gap for proper stability. obtain.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the putt practice device of the present invention, a pair of rails are arranged so as to have a symmetrical positional relationship with an imaginary axis line (that is, an imaginary straight line which can be an ideal launching direction of the ball) being interposed. The golf ball is supported by a gap formed between the pair of rails. Then, the gap has a section in which a width for supporting the golf ball is arbitrarily set within a range of 5 mm or less.

As described above, when the ball is placed on the gap existing between the pair of rails, the ball is accurately positioned at the center of the gap (that is, on the virtual axis), and the ball is accurately positioned. The center of gravity of is within the depth of the gap, so that appropriate stability can be obtained. Since the relationship between the gap and the ball is basically established at any part in the extension direction of the pair of rails, accurate positioning and proper stability of the ball are guaranteed in a wide range in the extension direction of the pair of rails. .

In the pair of rails, at least in a section in which the golf ball support width of the gap is set within the range of 5 mm or less, while the ball placed on the gap is kept in an appropriate stability, the ball has an imaginary axis line. If the ball is hit in a direction that does not follow, the stable state of the ball collapses in response to the deflection, and the ball easily separates from the gap. In this way, by striking a well-balanced contradictory condition such as stability of the ball in the gap and ease of separation of the ball from the gap, it is possible to ensure that the accurate hit ball is straight on the gap along the virtual axis. Since the rolling and deflection hitting ball deviates from the gap and surely deviates in the deflection direction, whether or not the hitting ball is deflected can be clearly and precisely detected. Then, when the deflection is large, the hit ball leaves the gap immediately after it hits and largely deviates to the outside of the rail, but when the deflection is small, the hit ball rolls along the gap to some extent and then relatively gently moves on the rail. Since it goes to the outside of the ball, it is possible to know the degree of deflection of the hit ball depending on the degree of the hit ball.

In the present invention, first, it is conceivable that a pair of rails are arranged in parallel in the entire section, and the golf ball support width of the gap sandwiched by the pair of rails has the same dimension in the entire section. In addition, it is conceivable to implement a structure in which the golf ball support width of the gap is narrowed stepwise or a structure in which the golf ball support width is narrowed steplessly. Then, when the putt is practiced to hit the ball in a direction in which the golf ball supporting width of the gap is narrowed, the gap in which the center of gravity of the hit ball is narrowed as the hit ball progresses, and as a result, the center of gravity of the hit ball becomes Since it is easy to move from the inside to the outside of the rails on both sides, if there is a slight left or right deviation in the course of the hit ball, the hit ball will be hit at any point in the gap that gradually narrows depending on the degree of the deviation. Since the center of gravity is moved to the outside of the left or right rail according to the deflection direction and falls off, the deflection direction of the hit ball and the degree of deflection can be detected with extremely high sensitivity.

The putt practice device of the present invention, as described above,
By placing the ball so that the center of gravity fits in the gap between the pair of rails, accurate positioning of the ball and proper stability of the ball are ensured. It does not matter if the plane does not exist on the rail. Therefore, for example, both the pair of rails that sandwich the gap may be inclined downward just outside the ball support width of the gap, and when the course of the hit ball is deflected,
As soon as the center of gravity of the hit ball moves from the gap to the rail, the hit ball descends down the slope and shifts to the outside of the rail, so that a slightly deviated hit ball can be clearly detected with high sensitivity and identified. That is, it is possible to prevent a situation, which has been a conventional problem, in which the distinction between a straight striking ball and a deflecting striking ball is unclear due to the existence of the margin width of the rail plane.

If one or both of the pair of rails are provided in a movable state, the movable rail can be displaced to variably adjust the ball support width of the gap formed between the pair of rails. become. When the gap is widened, the center of gravity of the ball fits tightly into the gap, increasing stability, reducing the chances of the ball falling off the rail, reducing the difficulty of putting practice, and conversely narrowing the gap. Then, the center of gravity of the ball becomes shallower in the gap, reducing stability, increasing the chances of the ball falling off the rail, and increasing the difficulty of putting practice.

In the present invention, if a scale used for measuring dimensions, angles, etc. is displayed on the structure forming the pair of rails or the gap, in addition to the function as a pad practice device, a ruler, a protractor, etc. Since the function is added, it can be effectively used as office supplies or stationery even when it is not used as a putt practice device.

[0018]

Embodiments will be described with reference to the drawings.
The pad practice device of the present invention shown in FIGS. 1 and 2 is provided with a pair of rails 2 and 2 at symmetrical positions with respect to the virtual axis 1.
A gap 3 is formed between the pair of rails 2, 2. The gap 3 has a section in which the width dimension for supporting the golf ball is arbitrarily set within a range of 5 mm or less.

In the embodiment shown in FIGS. 1 and 2, since the pair of rails 2 and 2 are arranged in parallel in the entire section, the ball support width W of the gap 3 sandwiched between the rails 2 and 2 is the entire section. Have the same dimensions.

Further, as shown in FIG. 2, the ball support width W
Since the rails 2 and 2 on the outer side of the track are inclined downward, when the center of gravity C of the ball B at the center of the gap 3 moves to C ', C'of the rails 2 and 2 due to the deflection of the ball B,
Immediately after that, the hit ball B descends down the slope and deviates to the outside of the rails 2, 2.

In the embodiment of FIGS. 1 and 2, the gap between the pair of rails has a V-shaped valley in cross section, but in addition to this, as shown in FIG. , 2
It is also conceivable to form the gap 3 by making the cross-section shape like an arc, or to make the depth of the gap 3 between the pair of rails 2 and 2 correspond to the outer peripheral shape of the ball B as shown in FIG.

The embodiment shown in FIG. 5 has a pair of rails 2 and 2.
Are arranged in parallel, the ball support width of the gap 3 is set to W1 (for example, 5 mm), W2 (for example, 3 mm), W3 (for example, 1).
mm).

Further, in the embodiment shown in FIG. 5, since a scale, such as a ruler, a protractor, and a square, is displayed on the structure forming the pair of rails 2, 2 and the gap 3, for example, the ruler. The ball can be placed at a desired position in the longitudinal direction of the gap 3 using the scale 4 as a guide, and can also be used as an office tool or a stationery. Although not shown in FIG. 5, numbers or symbols indicating length, angle, etc. may be added to correspond to the scale 4.

The embodiment shown in FIG. 6 has a pair of rails 2, 2
Are arranged in a taper shape, and the ball support width of the gap 3 is steplessly reduced from Wa (for example, 5 mm) to Wb (for example, 1 mm) in the section L1. In this embodiment, it is assumed that the ball is placed in the section L1 and the hit ball is rolled in the direction in which the gap 3 is narrowed, and the section L2 is used as a guide for the backswing trajectory of the putter club.
The ball support width of the gap 3 in the section L2 does not necessarily have to be 5 mm or less, and the rails 2 and 2 can be freely formed without being restricted by the symmetrical positional relationship in the section L2.

In the embodiment shown in FIGS. 7 and 8, one of the pair of rails is a fixed rail 21 and the other is a movable rail 22, and the movable rail 22 is a guide 2 of the fixed rail 21.
By sliding according to 1b and 21b, the ball support width of the gap 3 can be set wide as shown by W in FIG. 7 or narrow as shown by W ′ in FIG. The sliding operation of the movable rail 22 is performed by rotating the worm gear 22a provided on the movable rail 22 with a finger to move the worm gear 22a.
Is performed by displacing along the rack gear 21a of the fixed rail 21.

In the embodiment shown in FIG. 9, both the pair of rails are movable rails 23 and 24. One end of the movable rails 23 and 24 placed on the base plate 25 has shafts 26 and 2.
On the other hand, a push spring 27 is interposed at the other ends of the movable rails 23 and 24. And movable rail 2
A guide 28 for sandwiching 3, 24 from the outside is provided, and by sliding this guide 28, the ball support width W of the gap 3 sandwiched by the movable rails 23, 24 is variably adjusted.

It should be noted that the length of the pair of rails in the putt trainer of the present invention including each of the above embodiments may be freely set.

[0028]

According to the present invention, by placing the center of gravity of the ball in the gap 3 sandwiched by the pair of rails 2 and 2, accurate ball positioning and appropriate ball stability are ensured in a wide range in the rail extension direction. It And, due to this moderate ball stability, the putt practice device of the present invention does not adversely affect the detection of the deflection of the hit ball even if there is some unevenness in the installation location, so be careful of the special nervousness regarding the surface condition of the installation location. You don't have to pay.

Further, according to the present invention, by providing a section in which the dimension of the support width of the golf ball in the gap 3 is set within the range of 5 mm or less, the stability of the center of gravity of the ball accommodated in the gap 3 is appropriately secured, while Even if the hit ball is deflected even by a slight amount, the stability of the ball is lost due to the force in the deflection direction, and the center of gravity of the ball easily separates from the gap 3 and falls to the outside of the rails 2 and 2. It succeeded in achieving both in balance, and as a result, it became possible to accurately detect the fine deflection of the hit ball while positioning the ball accurately and stably.

Further, the pair of rails 2 and 2 are provided at symmetrical positions with respect to an imaginary axis line 1 which can be an ideal ball-hitting path, and the center of gravity of the ball which fits in the gap 3 sandwiched between the rails 2 and 2. Is usually on the virtual axis 1, so that the conditions for the center of gravity of the ball to move from the gap 3 to the left or right rail 2 at the respective positions in the rail 2 and 2 extension direction are the same. Therefore, there is no variation in the sensitivity for detecting the deflection of the ball and the degree of deflection due to the difference in the ball launch direction.

As described above, according to the present invention, it is possible to detect the subtle deviation of the hitting ball of the putt. In other words, when the ball is hit, if the ball is deflected even if it is a little careless and the ball is deflected even slightly. It will fall to the side of 2, 2. Therefore, in practice using the putt practice device of the present invention, since concentration and tension are required in order to hit a straight and accurate hit ball, even in various environments in the actual round and even extreme mental tension, The skill and concentration to be able to hit such a putt are cultivated.

Further, according to the present invention, accurate positioning and appropriate stability of the ball can be obtained without providing the ball restraining means such as the conventional ball rolling stopper, which limits the position where the ball is placed, on the rail. Therefore, the ball can be placed at an arbitrary position in the extension direction of the rail (gap), the distance of the rail (gap) for rolling the ball can be freely adjusted, and a desired difficulty level can be set for practice.

Further, by making one or both of the pair of rails 2 and 2 movable and variably adjusting the golf ball support width W of the gap 3, anyone can easily, surely and freely obtain a desired one. You can now set the putt practice environment of difficulty.

Finally, according to the present invention, by providing the scale display 4 such as a ruler or a protractor, it can be effectively used as an office article or a stationery even when it is not used as a putt practice device.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a putt practice device according to the present invention.

FIG. 2 is an enlarged vertical sectional view taken along line 2-2 of FIG.

FIG. 3 is a vertical cross-sectional view illustrating a mode of forming a pair of rails and a gap in the present invention.

FIG. 4 is a vertical cross-sectional view illustrating a mode of forming a pair of rails and a gap in the present invention.

FIG. 5 is a perspective view showing an embodiment of a putt practice device according to the present invention.

FIG. 6 is a perspective view showing an embodiment of a putt practice device according to the present invention.

FIG. 7 is a perspective view showing an embodiment in which one of a pair of rails is provided in a movable state in the present invention.

8 is a perspective view showing a state in which the width of the gap is adjusted to be narrow in the embodiment of FIG.

FIG. 9 is a perspective view showing an embodiment in which both of a pair of rails are provided in a movable state in the present invention.

[Explanation of symbols]

1 Virtual Axis 2, 2 Pair of Rails 21 Fixed Rail 21a Rack Gears 21b, 21b Guide for Guiding Movable Rail 22 Movable Rail 22a Worm Gear 23 Movable Rail (One of Pair) 24 Movable Rail (Other of Pair) 25 Base plate 26, 26 Axle 27 Push spring 28 Guide 3 Gap 4 Scale display W Width for supporting golf ball in the gap W1, W2, W3 Ball support width Wa, Wb of the gradually narrowed gap Wa, Wb Ball support width of the narrowed gap W'Ball support width of the gap after variable adjustment B Golf ball or its hit ball C, C'Golf ball or center of gravity of the hit ball L1, L2 Division of a pair of rail and gap section

Claims (4)

[Claims] 1. A pair of rails are provided so as to have a symmetrical positional relationship with respect to an imaginary axis, and a gap for supporting a golf ball is formed between the pair of rails. Further, in the gap, there is provided a section in which a width for supporting the golf ball is set to an arbitrary dimension of 5 mm or less. Pat practice device characterized by the above. 2. The putt training device according to claim 1, wherein a width for supporting the golf ball is narrowed stepwise or steplessly in the gap. 3. The width for supporting the golf ball in the gap can be variably adjusted by movably providing one or both of the pair of rails.
Alternatively, the putt practice device described in 2. 4. The putt trainer according to claim 1, 2 or 3, wherein scales for measuring dimensions, angles and the like are displayed on the structure forming the pair of rails or the gap.