JPS59137073A - Golf exerciser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a golf practice device that allows users to easily and repeatedly practice light hitting such as batting and short approaches.

Improving your puttering and short approaches are considered essential to improving your golf skills, and golf enthusiasts practice repeatedly in their gardens, indoors, or during breaks at work.

However, in the past, it took time to set up and store practice mats, etc. for practice, and it also took time to collect the balls that were hit and position the balls, making it easier to easily repeat punching practice. There was no golf practice equipment available.

To provide a golf practice device which solves the conventional difficulties in practice, allows the user to learn correct strokes, and allows him to easily perform light hits such as para golf ◇ golf even in a narrow space.

In order to achieve the above object, the present invention hits a ball placed on the ground with a club head, scoops up the ball rolling on the ground from below with a rail body that is swung out in conjunction with the head, and also scoops up the ball rolling on the ground from below with a rail body that is swung out in conjunction with the head. This golf practice device is configured to brake the rolling ball by increasing the slope of the body and return the ball stopped at the rail body to its original position on the ground F along the rail body. The present invention will be described in detail below using the drawings.

・This is a view from the front of the practitioner, with the center of the ball and the center of the putter head aligned to perform a par-rug. Figure 2 is a view taken along the arrow A-A in Figure 1, and Figure 3 is a view of Figure 1.
4 is a sectional view taken along line B-B in FIG. 1, and FIG. 5 is a sectional view taken along line C-C in FIG. 1. FIG. 6 is an overall perspective view of the first embodiment; 3 is an imaginary rolling line along which the ball rolls toward an imaginary target; 74 is the head of the putter; 5 is the striking surface v6 of the head 4; It is a shaft that is integrally connected and extends upward. The striking surface 5 is located perpendicular to the virtual rolling line 3 when viewed in plan.

Hereinafter, it will simply be referred to as rolling line 3. 7 is a rail body, and this rail body 7
is composed of two track body constituent parts 44'7a, and each track body constituent member 7a is arranged substantially parallel to each other at intervals slightly smaller than the diameter of the ball 1. The two rail component members 7a are grouped together into a plate shape at the bottom of the head 4 as shown in FIG. 7, and are fixed to the bottom of the head 4. This fixation is performed by rail body mounting screws 11. FIG. 7 shows a method of fixing the rail body 7 and the head 4, and is a partially reversed perspective view of the vicinity of the head 4. ■2 is the end point of the takeback. The tip 3 of the track body 7 is a part where the two track body constituent members 7a are integrated, and although it has no particular meaning, it is an index indicating the direction in which the head 4 is swung out.

When the ball l is hit by the head 4, it straddles the two rail body component parts 7a, contacts the edge line 8 of the rail body component part 7a, and advances in the longitudinal direction of the rail body 7 while rotating or slipping. be able to.

As shown in the figure, the rail body 7 is curved in a concave curve in one direction and in an arc extending forward (in the X direction) from the head 4. The radius of curvature of the arcuate curve of the track body 7 is approximately equal to the radius of curvature of the arcuate trajectory drawn by the bottom of the head 4 in an ideal putting motion of a practitioner. The track body 7 is arranged at a position that substantially coincides with the arcuate trajectory drawn by the bottom of the head 4, and its rear end (-X side end) is fixed to the head 4. The trajectory drawn by the bottom of the head 4 during the ideal putting is generally considered to be arcuate, and this arcuate trajectory should be drawn within a vertical plane including the rolling line 3.

The cross section of the track body 7 is configured such that when the ball 1 rolls in the longitudinal direction of the track body, a part of the surface of the ball 1 protrudes to the outside of the curve of the track body 7. That is, as shown in FIG. 4, a portion of the pole surface is configured to protrude downward by a distance a from the bottom of the rail body 7 and roll. The golf practice device according to the first embodiment of the present invention is constructed as shown below, and the head 4 and the track body 7 can be swung integrally by swinging the shaft 6 as in normal putting. . As an explanation of the operation, a method for a right-handed practitioner to practice putting using the first embodiment will be described below.

First, take a stance as in normal putting, align the center of the head 4 with the center of the ball as described above, and set up as shown in FIGS. 1, 2, and 3. In this state, the relationship between the ball] and the two rail component members 7a is as shown in FIG. are doing.

In other words, the bottom of the track body 7 is centered above the ground 2, and the height b is smaller than the dimension a shown in FIG. Therefore, the ball 1 does not come into contact with the track body 7 and remains supported on the ground. That is, there is a gap between the ball 1 and the rail component part 7a in both the two directions and the Y direction.

Next, when the head 4 is taken back and pulled in the HxX direction, the bottom of the head 4 moves along with the rail body 7 while drawing a concave arcuate trajectory upward in a vertical plane including the rolling line 3. However, as described above, the radius of curvature of the arcuate trajectory drawn by the bottom of the head 4 when the head 4 is pulled is approximately equal to the radius of curvature of the ridged body 7 curved into an arc. From this, even if you take a takeback, the erectile body component part 7a will not come in contact with the ball], but will continue to pass through the "side part" of the rail part part 7a, so to speak, and will reach the end point of the takeback. It is possible to move the takeback until part] 2 is in the position of the stationary ballco. In other words, the takeback is taken from the head 4 to the end point 12 of the takeback, and the relationship between the ball and the rail body structure part 7a on the way to Pukbanok is the fifth as far as we can see from the cross section of the Shizuka ball position.
It is no different from the one in the picture.

Next, the head '4 is swung in the X direction to hit the ball 1, but the trajectory of the head 4 from the position of the head 4 where the take-back has been completed to the position of the head 4 before hitting the ball 1 is the same as that at the time of the take-back. The same is true, therefore, even when the head 4 and the track body 7 are swung in the X direction, the track body component 7a does not come into contact with the ball 1 until the moment of impact, and the ball remains stationary on the ground 27.

The ball hit by the hitting surface 5 of the head 4 rolls a short distance in the X direction on the ground 2 without contacting the track body 7. The rolling speed of this ball l is faster than the X-direction component of the speed of the track body 7 that is swung out in the X-direction. However, the rail body continues to rise in the Y direction along the arc-shaped trajectory.

In other words, while the track body 7 chases the ball l at a slower speed than the ball 1, it continues to rise on the track body located in front of the rolling ball 1. The ball 1 eventually comes into contact with the rail 7 and rides on the rail 7 so as to be scooped up. Then, the ball starts rolling on the track body 7-1-, straddling the two track body constituent members 7a.

Next, the ball 1 that has started rolling on the track body 7 stalls as the head 4 swings out in the X direction. This stall is caused by the swinging of the head 4 in the X direction.
This is due to the increase in the slope of . In other words, the ball rolling on the track body 7'2] is
Therefore, the ball rolls toward the tip of the track body 7 at a speed of 11, but since the track body 7 moves upward in the X direction in an arc, the ball gradually climbs a steep slope of the track body to the right. This is because a braking force is applied to l. This effective braking occurs because the track body 7 itself moves in the same direction as the ball while chasing the ball. Braking performed while increasing the inclination of the track body 7 in this manner acts extremely smoothly without damaging the busy ring of the naive patch leg.

Next, the ball stalled on the track body 7] is the track body 7-1-
This time it rolls down towards head 4. In this case, if you touch the head 4 to the ground 2 and wait for the ball to return, the ball will roll down on the track body 7 up to a certain point, and the bottom of the ball will touch the ground. 2, it leaves the golf practice device, and from there it returns to the front of the head 4 due to inertia.

The structure and method of use (function) of the golf practice device according to the first embodiment of the present invention are as described below. Since the ball returns to the ground 2, there is no need for the troublesome work of picking up the ball and raking the ball with the head for positioning, making it easy for practitioners to stand in the same position without changing their stance or grip, even in tight spaces. can be done. It is desirable to perform these exercises while being careful to ensure that the center line of curvature of the track body is within the vertical plane that includes the rolling line 3, so that the head can be taken back along the rolling line and swung out. In 7 par = Koi You can learn the basics of Kokushi movement. In particular, when the direction of the hitting surface 5 from above is perpendicular to the rolling line 3 that occurs during take-back and swing-out operations, the end portion of the rail body 7 may sag, which can be visually recognized in real time below. The member with the strike number 13 functions as a stopper and prevents the ball 1 from flying out from the track body 7.

Next, FIG. 8 is a partial perspective view of a golf practice device according to a second embodiment of the present invention. In this embodiment, two further rail component parts 7b are integrally extended in front (on the X side) of the cheeks 2 of the rail body 7 in the first embodiment. The ball hit by the ball can continue to roll from the take-back end point 2 to the end 12a of the track body.

The distance between the two rail body constituent parts 71) is approximately equal to the distance between the two rail body constituent parts 7 (a), and the distance between the two rail body constituent parts 71) is approximately equal to the distance between the two rail body constituent parts 71). Body 7 is facing forward (X
The radius of curvature of the curved line of the rail body in this extended portion is smaller than the radius of curvature of the circular arc-shaped track drawn by the bottom of the header 4. The distal end portion of the rail body 7] 3 is provided at the distal end portion of the extended rail body 7 in the same manner as in the first embodiment. The method of fixing the rail body 7 and the hemlock 4 is the same as that shown in FIG. 7 above.

The golf practice device according to the second embodiment of the present invention is constructed as described above, and when in use, it is possible to take a takeback from the end point 4 to the end point of the takeback. The ball that was hit is at the end of the takeback 12
Since the ball can roll further forward (on the X side), when the head 4 is swung out, the ball can be rolled to a higher position, thereby applying greater braking to the ball 1. Note that the radius of curvature of the circular curve of the rail body 7 in the extended portion can be set independently of the radius of curvature of the circular arc-shaped trajectory drawn by the bottom of the head 4. It is obvious that the radius of curvature of the curve may be larger than the radius of curvature of the arcuate track drawn by the bottom of the head 4, and furthermore, a linear track may be provided. The golf practice device according to this embodiment has a relatively short take-back length, and when the head 4 swings out (-7 speed) to hit hard, the track body has a short dimension in the χ direction, making it easy to handle. There are advantages.

FIG. 9 shows a head 4 and a track body 71 of a golf practice device according to a third embodiment of the present invention. and FIG. 6 is an inverted exploded partial perspective view showing the connected configuration of shaft A'. In the same figure, 1
5 is a loose hole for inserting the shaft 6 drilled in the hemlock 4, 6 is a push bolt for fixing the shut, 17 is a screw hole,]
8 is a sufficiently large concave square hole provided at the bottom of the head 4;
19 is a loose hole penetrating from the rear wall surface of the concave square hole 18 to the rear outer surface of the head 4; 2o is an L-shaped member; 21 is a female screw hole drilled in the X-direction in the L-shaped member 20; , mold part 4d' 20 I: Loose hole drilled in the Z direction, 24- is a loose hole drilled in the Y direction at the end portion of the rail body 7 on the head 4 side, 25 is a rectangular parallelepiped piece, 26 is a piece 25 is a female screw hole drilled in the Y direction, 27 is piece 2
28 is a countersunk screw; 30 is a screw; 31 is a tool insertion hole drilled in the Z direction from the outer surface of the head 4 to the square hole 8; , is. The shaft 6 is fitted into the shaft insertion hole 15, and is integrally fixed to the head 4 by screwing the shaft fixing press bolt 6 into the female screw hole 17. The rail body 7 is fixed to the piece 25 by inserting a countersunk screw 28 into the loose hole 24 and screwing it into the female threaded hole 26. Piece 25 is loose hole 2
It is fixed to the L-shaped member 20 by inserting the screw 30 into the L-shaped member 2 and screwing it into the female screw hole 2713-. In this state, the integrated piece 25 and L-shaped member 20 are housed in the concave square hole 18, and the screw 29 is inserted into the loose hole 19 and screwed into the female threaded hole 21.

By assembling the above, the rail body 7 is assembled into a piece 25 and an L-shaped member 2.
It is fixed two-dimensionally through 0.

The connecting structure of the head 4, the track body 7, and the shaft 6 of the golf practice device according to the third embodiment of the present invention is as described above, and according to the third embodiment, the length of the shaft 6 is Adjustment can be carried out, and the above-mentioned
The inclination angle e in the figure] and the inclination angle θ2 in FIG. 2 can be adjusted.

The golf practice device of the present invention is used when the practice device is held by the practice person.
As shown in Figures 2 and 3, the arcuate curve of the rail body 7 lies within a vertical plane that includes the rolling line 3, and the tangent of the curve of the rail body 7 near the head 4 is the rolling line 3. It is easy to use when the shaft 6 is approximately parallel to the shaft 6 and has an appropriate length. However, in putting, there are individual differences in the inclination and length of the shaft 6, and to accommodate this, the above-mentioned shaft length, r, 'a,
It is desirable that the inclination angle θ2 of the shaft 6 with respect to the vertical plane including the rolling line 3 can be adjusted to <51M as in this embodiment.
Here we will explain how to adjust this.

First, loosen the shaft fixing screws 6 for the shaft 6 and attach the shaft fixing screws 6 in and out of the shaft insertion holes. To adjust the inclination angle e], insert the king 11 from the ξ-1 insertion hole 3], loosen the screw 30, and move around the screw 30.

This is done by tightening the screws 30 so that the strips 7 and the pieces 25 are rotated appropriately against the head.

A1□r1 To adjust the angle θ2, loosen screw 29 and
This is done by rotating the track body 7, the top 2.5, the L-shaped member 20, and the L-shaped member 20 with respect to the head 4 by about 1 to a droplet contact angle about 9 as a center.

Further, loosen the screw 28, rotate the rail body 7 by an appropriate angle with respect to the striking surface 5 of the head 4, and then loosen the screw 28 again.
8, the angle θ3 shown in FIG. 3 can be adjusted.

FIG. 10 is a plan view of the state after adjusting the angle e3, taken from the same direction as FIG. 3. Adjust as shown in Figure 101
The golf practice device is designed to hit the ball by performing a series of batting operations such as take-back and swing-out in the Xa-Xb force direction, with the batting surface 5 facing perpendicular to the rolling line 3 when viewed from above. During batting, you can practice a batting technique that gives the ball horizontal rotation (a batting technique that hits the ball while rubbing it in two directions, giving the ball a bit of a slicing effect). In this case, in practice, the ball is rolled in three directions along the rolling line, but in this golf practice device, the ball 1 runs along the track body 77 in the direction of the xb force. However, regardless of the direction in which the ball rolls, at least the trajectory of the head 4- and the feel of the touch in the actual slice-type batting method can be sufficiently learned while actually hitting the ball 1. In addition, by turning the longitudinal direction of the rail body 7 to a position that is symmetrical to the rolling line 3 as shown in FIG.

FIG. 11 is a partial sectional view showing a connected configuration of the head 4 and the track body 7 of a golf practice device according to the fourth embodiment of the present invention, with a part of the head 4 and the track body 7 being connected to the rolling line 3. It is a diagram that is cut on a vertical plane, and the prefecture is perpendicular to the vertical plane.

FIG. 12 is a partial perspective view showing the portion of FIG. 11 with the head 4 removed. In Figure 11, cause 12, 18a
is a concave hole provided at the bottom of the head 4, 3]a is a cylindrical portion, 29a is the cylindrical member 3]-a, a pin having approximately the same diameter as the inner diameter of the cylindrical member 3]-a and having a male threaded portion at the end; niX
female screw hole drilled in the direction, 3 ], b is a plate-shaped member,
It is. rail body 7 and cylindrical part g 3 ], a is plate-shaped part 4
43 ] b. Cylindrical member 3
], a is accommodated in the concave square hole 18a, and a pin 29a is fitted into the inner diameter of the cylindrical member 3 ], a so as to be slidable and rotatable in the X direction. The pin 29a is fixed to the head 4 by firmly screwing the male threaded end portion into the female threaded hole 29b.

The golf practice device according to the fourth embodiment of the present invention is constructed as described above, and the golf practice machine can be operated by simply placing the bottom of the track body 7 on the ground 21- and tilting the shaft 6 to a desired angle. The adjustment of the tilt angle e2 can now be completed. Furthermore, in this embodiment, the inclination angle 8.2 changes during a series of operations such as take-back and swing-out, and the two rail body constituent members 7a, (1
') There is an advantage that even if one side hits the ground 2 unevenly, it is automatically corrected by the centripetal action.

Next, FIG. 13 is a partial perspective view of a golf practice device according to a fifth embodiment of the present invention, and FIG. 14 is a partial perspective view showing a connected structure of the head 4 and the track body 7 of FIG. 13. This is a view from below.

In FIGS. 13 and 4, the rail body 7 is curved with a radius of curvature that is approximately the same as the arcuate trajectory drawn by the bottom of the head 4. 32 is a female screw hole drilled in the bottom of the head 4, 33 is a rail body 7 holding member as shown, 34 is a loose hole drilled in the holding member 33, 35 is a rail body 7 accommodating screw, and 18- . The rail body 7 is attached to the holding portion $i' by inserting the mounting screw 35 into the loose hole 34 and screwing it into the female threaded hole 32.
It is fixed to the head 4 via 33.

The golf practice device according to the fifth embodiment of the present invention is constructed as described above, and by shifting the track body 7 in the longitudinal direction with respect to the head 4, it is possible to take the length from the head 4 to the takeback end point 12, that is, the takeback. The length can be adjusted freely. This adjustment can be done with 3L by loosening the mounting screw 35, shifting the rail body 7, and strongly tightening the screw 35 again.

According to this embodiment, the practitioner can learn accurate takeback length by trying to accurately pull the head 4 until the adjusted takeback end point 2 reaches the stationary ball. In this embodiment, the track body 7 protrudes behind the head 4 (on the -X side), but even if the track body 7 is provided at the rear of the head 4 in this way, it will not cause any obstruction.
Rather, it is easy to balance the weight as a golf practice device,
Since the longer rail body 7 is swung in the length direction, the swinging direction is further stabilized.

FIG. 115 is a front view of a golf practice device according to a sixth embodiment of the present invention, and as in FIG. be. 16th
The figure is a plan view of FIG. 15. In Fig.]-5 and Fig. 16, the 1tjl+ rail body 7 is composed of two linear rail body constituent members 7C arranged substantially parallel to each other, and the rail body 7 is arranged substantially parallel to the ground 2. be done. The rear end (-X side end) of the four-strip body 7 is fixed to the head 4, and has a takeback end point portion 12 at the front end. The cross-sectional configuration of the track body 7 in relation to the diameter of the ball is the same as in the embodiment.

A golf practice device according to a sixth embodiment of the present invention is constructed as shown in FIG.
You can practice light putting with a takeback that is so small that it does not come in contact with the ball.

Note that, as in the case of the first embodiment, the track body 7 can brake the tilted ball when the head 4 is swung forward (in the X direction) after hitting the ball.

FIG. 17 is a front view of a seventh embodiment of the present invention, and similarly to the above, it is a view from the front of a right-handed practitioner in a stance held by a right-handed practitioner. In the same figure, the rail body 7 is composed of two linear rail component parts 7d arranged approximately parallel to each other, and the rail body 7 is upwardly extending forward from the vicinity of the head 4 with respect to the ground 2 as shown in the figure. (front door in the X direction). The rear end of the rail body 7 is fixed to the head 4, and the front end has a takeback end point portion]2. The cross-sectional configuration of the track body 7 in relation to the diameter of the ball is the same as in the first embodiment.

The golf practice device according to the seventh embodiment of the present invention is constructed as described above, and can achieve a longer takeback compared to the sixth embodiment, and can also apply greater braking to the hit ball.

FIG. 1.8 is a front view of a golf practice device according to an eighth embodiment of the present invention, and is a view from the front of the practice device held by a right-handed practice person as described above. In the figure, the rail body 7 includes a linear portion of the rail body 7 consisting of two linear rail component members 7c21- arranged approximately parallel to each other, and a front end (X
The curved part of the track body 7, which is made up of two curved track body constituent members 7b of the front bird which are integrally extended further forward from the side end), has a pointed shape, and the ball is struck by the head 4. ] rolls astride the two rail body constituent members 7c, and subsequently rolls astride the two rail body constituent members 7b to the rail corporal punishment end ]2a as in the case of the second embodiment. It is configured to obtain. Two rail body constituent members 7
The distance b is approximately equal to the distance between the rail body constituent members 7c, and the cross section of the linear portion of the rail body 7 is the same as that of the first embodiment.

A linear portion of the rail body 7 is arranged substantially parallel to the ground 2, and the rear end of the linear portion is fixed to the head 4. The takeback end point portion 12 is located at the right end portion of the linear portion of the rail body 7.
The golf practice device according to the eighth embodiment of the present invention has the following configuration, and is suitable for a golf practice device that hits the ball instantaneously with a short takeback and swing length at a fast head 4 speed. ing.

22- FIG. 19 is a front view of a golf practice device according to a ninth embodiment of the present invention, and is a sectional view taken from the front of the practice device when it is held and played by a right-handed practice player, as described above. In the figure, the track body 7 includes a horizontal portion of the straight track body 7 consisting of two straight track body components +) I'7c arranged substantially in parallel;
An inclined part of the linear rail body 7 consisting of two linear rail body constituent parts cedars 7d that integrally extend further forward from the front end (X side end) of the part and have a forward upward slope. ,
The ball which is composed of
It is configured so that it can roll astride the individual rail body forming portions 4A7d to the front end portion 12a of the rail body 7, as in the second embodiment. The interval between the two rail body constituent parts I'7d constituting the inclined part of the rail body 7 is approximately equal to the interval between the two track body constituent parts I'7C constituting the horizontal part of the rail body 7,
The cross section of the horizontal portion of the rail body 7 is the same as the rail body 7 of the first embodiment.
Same as cross section. The rear end portion of the horizontal portion of the rail body 7 is fixed to the bottom of the head 4. The takeback end point portion] 2 is located at the front end of the horizontal portion of the rail body 7.

The golf practice device according to the ninth embodiment of the present invention is constructed as follows, and has effects similar to those of the eighth embodiment.

FIG. 20 is a front view of a golf practice device according to a tenth embodiment of the present invention, and is a view of the golf practice device being held and held by a right-handed practice person as described above, as seen from the front of the practice person. Figure 21 is the second
FIG. 22 is a plan view of FIG. 0, and FIG. 22 is a view taken along the line DD in FIG.

In FIGS. 20, 21, and 22, the radius of curvature of the rail body 7 curved in an arc shape is the arc-shaped trajectory drawn by the bottom of the head 4 when the practitioner punts, as in the first embodiment. is approximately equal to the radius of curvature of As shown in FIG. 22, the arcuate curve of the track body 7 lies within an inclined plane in which the vertical plane including the rolling line 3 is tilted toward the practitioner (Z side) by an angle e4, and is different from the first embodiment. Similarly, the rail body 7 is arranged at a position that substantially coincides with the arcuate trajectory drawn by the bottom of the head 4 during punting, and its rear end (-X side end) is fixed to the bottom of the gutter 4. The rail body 7 has two rail body constituent parts '4A'7e.
It has a takeback end portion 12 at the front end. The cross-sectional configuration of the track body 7 in relation to the ball 1 is the same as that of the first embodiment.

The golf practice device according to the tenth embodiment of the present invention is constructed as follows, and the take-back and swing-out operations can be performed so that the trajectory of the bottom of the head 4 substantially coincides with the arcuate curve of the track body 7. [No.] Similarly to the embodiment, the rail body component 7
e hits ball 1 without contacting ball 1.

As before, the hit ball l hits the track body 7 only by a small distance.
Rolling line 3 directions (X direction) on ground 2 without contacting
The rail body component f on the μ-curved outward side in plan view
) 1' 7 e and rides on the rail 7, and thereafter the ball is braked as the inclination of the rail 7 increases. As shown in FIG. 23, in this embodiment, when the rail body 7 is cut in the Z direction and viewed in the -X direction, the two rail body constituent members 7e are arranged at the same height, but the ball 25 is Considering that l rolls up the rail body 7 which is curved in plan, as shown in FIG. 8e is positioned above the edge line 8e formed on the rail component member 7e located in the inside of the curved line, which means that it corresponds to the centripetal force applied to the ball rotating and running along the curved curve. It is also a good idea. 24, the screw 29 in the third embodiment (FIG. 9) is loosened, and the plane including the curve of the rail 7 and the shaft 6 are formed. This can be done by adjusting the angle to be as shown in FIG. 22 05 and setting the inclination angle between the vertical plane including the rolling line 3 and the shaft 6 at θ2 as shown in FIG. 22 during use. As described above, the golf practice device of this embodiment allows batting practice by moving the head 4 back and forth in an arc within a plane tilted toward the practitioner while standing on the rolling line 3. Although this hitting method in which the head 4 moves closer to the practitioner 26- side than the rolling line 3 at the time of take-back or swing-out is suitable for short approaches, etc., it is an irregular hitting method for putting. However, there is a naivety among golf enthusiasts, especially those who are older, to avoid using the head 4, and from this point of view, the golf practice device of this embodiment is useful for the elderly golf enthusiasts.

FIG. 25 is a partial perspective view of a golf practice device according to a 'th] embodiment of the present invention. Figure 26 shows the head 4 in Figure 25.
FIG. 2 is a partial perspective view from below showing the connection structure of the rail body 7 and the rail body 7. 25 and 26, similarly to the fifth embodiment, the track body 7 is curved over its entire length with a radius of curvature approximately equal to the arcuate trajectory drawn by the bottom of the head 4, and both ends of the track body 7 are bent. , a take pack end portion] 2 is provided at the rear end portion, respectively. As shown in the figure, a mounting seat 36 for the head 4- and a mounting seat 37 for the shaft 6 are provided approximately in the middle of the rail body 70), and a loose hole 38 is bored in the mounting seat 36 for the head 4. The head 4 is formed as a striking surface 5 on both the front and rear surfaces (X side, -X side). head 4
has a female screw hole (not shown) at the bottom, and is fixed to the rail body 7 by screwing a screw 39 inserted through a loose hole 38 into the core screw hole. Shaft 6 is shaft mounting seat 3
7 toward the L direction and fixed to the rail body 7.

The golf practice device which constitutes the $11 embodiment of the present invention is as follows-1-8
Because it has this configuration, it can be used by both right-handed and left-handed practitioners.

FIG. 27 is an exploded perspective view of a golf practice device according to a twelfth embodiment of the present invention. In the figure, 6 is a conventional putter shaft, 4 is a head integrally attached to the lower part of the shaft 6, 5 is a hitting surface of the head 4, 44a, 44
b is a pair of two-split clamp, 44-C is clamp 44
A plane seat provided on the =X side of b (the plane direction is the striking surface 5
), 45 is a screw for tightening the clamps 44-a and 44b, 46 is a female screw hole drilled in the X direction in the flat seat 44c, 47 is a screw, 48 is a ring washer, and 49 is a ring washer 48 hardness in two directions) t force, bar, 50 is round bar 4
A cylindrical member is fitted to the outside of 9 so that it can be rotated and moved, 5] is a female screw hole bored in the upper part of the cylindrical part j350, and 52 is a round bar in the cylindrical part i'450. As shown in the figure, the push bolt 7a fixes the cylindrical part 4A' 50, and the rail body component 7a extends below the throat 11 to the throat 4 and toward the front of the impact (X side). and a pair of clamps 4.4. a, ,
4.4 b is fixed to the shaft 6 with a tightening screw 45, and the clamp 44 and b h PJ metal 48 are fixed with a screw 47. The cylindrical member 50 and the round bar 49 are fixed by screwing a press bolt 52 into the female threaded hole 5]. As a result of the above, the track body 7
is fixed relative to the shaft 6 and the rad 4.

A golf practice device according to a twelfth embodiment of the present invention is constructed as described in 1- below, and a practice person can practice by attaching the track body 7 to his or her favorite putter as needed. 'Adjustment of each part 29- before practice. For example, loosen the screw 47 and rotate the washer 48 by an appropriate angle to adjust the inclination angle e2.
to fix the washer 48 and clamp 44b. Screw,
52 and rotate the rail body 7 by an appropriate angle around the round bar 49 to adjust the inclination angle 0]. At the same time, the cylindrical member 50 is shifted by an appropriate dimension in the Z direction, adjusted so that the center in the width direction of the track body and the center of the striking surface 5 coincide with each other in a plane, and the screw 52 is tightened again to fix the inclination angle θ] so that it does not change.

Next, the cross-sectional structure of the rail body 7 can be implemented in various forms other than the embodiments described so far. Below is the above section]
Example - No. 2 An example of the cross-sectional configuration of the track body 7 that can be used in the second example and later-described modifications will be described.

Fig. 28 is a partial perspective view showing the seventh example of the rail body, and Fig. 29 is a sectional view taken along line F-F' in Fig. 28. In FIGS. 28 and 29, the rail body 7 is composed of two rail body constituent members 7f spaced apart in the width direction (Z direction), and the rail body constituent part shrine 7f-30= is further composed of two rail body constituent members 7f. It is composed of body component parts 7f' and 71''.As shown in the figure, a groove is carved in the longitudinal direction of the rail body 7 on the inside of the rail body component 7f'', and a thin transparent strip is formed in the groove. t "Rail body component 7f" is inserted appropriately and tightly. The movable single-strip component part 7f'' can be removed from the groove and replaced with one of a different band width, if necessary.

In addition, the 7th f' of the shingle and strata component serves as a reinforcing function. 8
f is a portion that comes into contact with the surface of the ball 1 when the ball rolls on the track body 7, and is an edge line formed on the track body self-forming member 7f. The first example of the rail body 7 is constructed as shown below, so if necessary, the rail body component 7f'' may be replaced with one with a different band width to adjust the spacing between the edge lines 8f, allowing for take-back, swing-out, etc. The accuracy of management of a series of operations can be changed.

Furthermore, in this example, the inner component part of the rail body 7f' is a ball]+I
It is possible to arrange the width in the Z direction to be wide regardless of the diameter, and since the track body component 44"7f" is a transparent member, the track body 7 does not obstruct the eyes at the front of the head '4. There is an advantage that the ground 2 (floor etc.) below can be seen through.

FIG. 30 is a cross-sectional view showing a second example of the track body 7, in which a ball is placed on the track body 7 in FIG. In Figures 3o and 31, the track body '7 is composed of two track body constituent members 7g spaced apart in the width direction, and each track body constituent member '7g further includes two track body constituent members 7g'', 7g. ”. As shown in the figure, the inner side of the rail component member 7g' having a reinforcing function is made of rubber, soft vinyl, etc. having a suitable width, which is flexible in the Y direction, or flexible with spring elasticity in the Y direction. The rail body intermediate member 7' is attached so as to hang down approximately toward the center. 8g is a portion that comes into contact with the surface of the ball 1 when the ball rolls on the track body 7, and is a surface portion formed in a portion of the track body constituent member 7g'''.

Furthermore, as shown in Fig. 30, the bottom of the track body 7 is located above the ground 2 by a certain dimension, and the bottom part of the track body 7 is located a dimension above the ground 2 in a free state where the track body constituent members, the 1 to 7 g wheel ball l, are not placed on it. H] is located on both sides.

The second example of the track body 7 is constructed as described above, and even if the track body 7 moves downward by the sum of the dimensions H] during putting, the inner structure of the track body 1rTA' 7 g'' car virtual It bends as shown by the line, so the rail body 7 does not scrape the ground 2 with excessive force.In addition, in this example, when the rail body 7 moves upward across the dimension H from the position shown by the solid line, it bends as shown by the imaginary line. As shown in , a portion of the rail component +A7g'' is in contact with the surface of the ball 1. As shown in this example, the height direction (Y
The track body 7 having flexibility in the ball direction) has a higher allowable height than the track body 7 of the previous embodiments which does not have flexibility, allowing the track body 7 to move downward L without contacting the ball. This allows for a larger range of height errors in the height direction of the track body 7 during a series of operations such as take-back and swing-out. As shown, the weight of the ball l is 7g for the rail body component.
is deflected, and the ball 1 comes into contact with the rail component member 7g'' at a wide portion and receives a large resistance.

33- FIG. 32 is a partial perspective view showing a third example of the rail body 7. FIG.

In the same figure, the rail body 7 has two parts spaced apart in the width direction as described above.
Each rail body middle part 7h further includes two rail body constituent members 7h'' and 7h'''.
Consists of. Rail body center part shrine 7h with reinforcing function
On the inside of the rail component 7h', a thin sheet-shaped rail member 7h'' with moderate elasticity is attached so as to hang down approximately toward the center, and the inner edge 8h of the rail component member 7h'1 is
It is cut out at regular intervals in the width direction, and the whole is formed into a particular comb blade shape as shown in the figure. 8h is the part that comes into contact with the surface of the ball 1 when the ball rolls on the rail body 7;
It is formed discontinuously in the longitudinal direction. The track body 7 of this example is constructed as described above, and when the ball l rolls on the track body 7, it rolls in contact with the comb-shaped cutting edge portion which is discontinuous in the longitudinal direction, thereby applying greater rolling resistance to the ball. be able to. In addition, since the rolling ball bounces on the elastic comb-like track body, the feeling is similar to that of a real green.

34- FIG. 33 is a sectional view showing a fourth example of the rail body 7. Third
Figure 4 is a sectional view showing a state in which a ball is placed on the track body 7 shown in Figure 33, and Figure 35 is a cross-sectional view of the track body 7 having the cross section shown in Figure 33.
FIG. In FIGS. 33, 34, and 35, the rail body 7 is composed of two rail body component members 7 spaced apart in the width direction, and each rail body component system 71 further includes two rail body members 7. The structural members 71' and 71' are constructed. As shown in the figure, a blank material 71'' is embedded in the rail component 71' which performs a reinforcing function.

81 is a ball when rolling on the rail body 7 ]-
This is the brush surface in contact with the surface of The track body 7 configured as in this example can apply a large resistance to the rolling ball 1, and the ball that rolls on the swing behaves like rolling on a green in a practical game. The reason why the rail body component part paulownia 7]' is set high in the shape of a wall as shown in the figure is because the ball rolling while jumping is the rail body 7.
This is to prevent it from jumping out in the width direction.

FIG. 36 is a sectional view showing a fifth example of the rail body 7. In the figure, the rail body 7 is composed of two rail body constituent parts 11j spaced apart in the width direction.

8J is a contact portion with which the surface of the ball 1 contacts when the ball rolls on the track body 7 as shown in the figure;
In this example, J is provided at four locations on the rail body 7.

FIG. 37 is a sectional view showing a sixth example of the rail body 7. In the figure, the track body 7 is composed of two track body constituent members 7 spaced apart in the width direction, and each track body constituent member 7 has two further rail body constituent members 7 ' and 7 '. configured.

A rod-shaped rail body structure 7 is formed with a rod-shaped rail structure having a reinforcing function. The rail body 7 of this example is constructed as described above, and when forming a curved rail body, the curved rail body constituent member 7 k' is inserted into the straight track body constituent member 7 at a length of ``. Therefore, the rail body 7 can be manufactured at low cost.

FIG. 38 is a sectional view showing a seventh example of the rail body 7. In the figure, the rail body 7 is composed of two rail bodies 7 spaced apart in the width direction.
Consisting of 7m long component.

8m is a portion that comes into contact with the ball surface when the ball l rolls on the track body 7, and is formed at the inner edge of the track body 7 with a width along the ball surface.

In the actual miJ examples so far, the track body 7 is mainly the head 4.
The case where the shaft 6 is connected to the head 4 has been described. However, the shaft 6 may also be connected to the track body 7, in which case the head 4 may be connected to either the track body 7 or the shaft 6. That is, in the first embodiment (FIGS. 1, 2, and 3), the rail body 7 is connected to the head 4, and the shaft 6 is connected to the head 4. In the case of this connection mode, in the third embodiment (FIG. 9), the rail body 7 is indirectly connected via the piece 25 and the L-shaped member 20.

Further, in the eleventh embodiment (FIG. 25), the shaft 6 is connected to the rail body 7, and the head 4 is connected to the rail body 7. Furthermore, in the twelfth embodiment (Fig. 27-37-), the rail body 7 and the head 4 are connected to the shaft 6 in the north,
In particular, the rail body 7 is indirectly connected to the shaft 6 via a ring engraving 48, a round bar 49, and the like. Rail body 7 as above
, the head 4, and the shaft 6, the connection may be direct, or may be indirectly connected by intervening other parts, or the rail body 7, the head 4. The shaft 6 may be integrally formed and connected. As mentioned above, in the golf practice device of the present invention, the connecting combination of the track body 7, the hendo 4, and the shaft 6 is completely free, and the three elements of the track body 7, the head 4, and the shaft 6 can be formed as separate members. They may be combined, or any two of the three elements may be integrally formed. It is also possible to configure all three elements integrally from the beginning.

Next, the shaft 6 does not need to extend upward in a straight line as in the embodiments described above, but rather has a rail so that the practitioner can grasp and swing the shaft above the combination of the rail body 7 and the head 4. The body 38-7 may be curved as long as it is provided upward from the head 4, that is, ultimately upward. FIG. 39 is an overall perspective view of a modified example of the golf practice device of the present invention, showing a mode in which the shaft 6 is curved and ultimately extends in one direction as indicated in the figure. . In the figure, one of the two rod-shaped members 7n constituting the rail body 7 is bent upward at the rear of the head 4 (on the -X side) and extended upward as shown to form the shaft 6. In this case, the curved rod-shaped portion 1 is part of the shaft 6. The rail body 7 has a rod-shaped portion 7n.
2 at the takeback end point section]2.

6a is the intersection of the extension line of the second part of the shaft 6'' and the head 4, and is essentially a point that should be considered as the root of the shaft 6. Note that this modification also shows a case where the shaft 6 and the rail body 7 are integrally formed using the same section.

Hereinafter, the golf practice device of the present invention has been disclosed through various embodiments, but from the outset it was assumed that among the three elements constituting the golf practice device of the present invention, the head and shaft in particular were specifically designed for the golf practice type of the present invention. It may be manufactured in combination with a track body, or it may be configured so that a person in charge can practice by attaching the track body. As a means for simply attaching the track body to the head or shaft of a conventional putter, there is a method such as magnetically attracting a part of the conventional putter and the track body.

Furthermore, although the explanation so far has mainly described the effects of the golf practice device of the present invention through the putting motion, the motion of swinging out along the same trajectory as the backswing is not limited to punting, but is a regular part of all golf swings. This is true not only when using a putter but also when using all golf clubs. In view of the above, the golf practice device of the present invention allows light ball hitting practice with a small backswing even when using an iron club or a wood club.

In addition to golf practice equipment, the present invention can also be applied to gateball practice equipment that closely resembles putting, health equipment for easily hitting balls, play equipment, etc., as long as they have the same structure, function, and effect.

[Brief explanation of the drawing]

1 to 7 are diagrams showing a golf practice device according to a first embodiment of the present invention, in which FIG. 1 is a front view and FIG. 2 is a
A view in the direction of arrow A, FIG. 3 is a plan view, FIG. 4 is a BB sectional view in FIG. 1, FIG. 5 is a C-C sectional view in FIG. 1, FIG. 6 is an overall perspective view, and FIG. FIG. 2 is an inverted partial perspective view showing a method of fixing the rail body and the head. FIG. 8 is a partial perspective view of a golf practice device according to a second embodiment of the present invention. 91 and 10 are diagrams showing a golf practice device according to a third embodiment of the present invention. FIG. 10 is a plan view showing a state in which the direction of the track body relative to the head striking surface is adjusted. 11 and 12 are views showing a golf practice device according to a fourth embodiment of the present invention, and FIG. 11 is a partial perspective view showing the portion of FIG. 11 with the head removed. 13 and 14 are views showing a golf practice device according to a fifth embodiment of the present invention, in which FIG. 13 is a partial perspective view, and FIG. 14 shows a connected configuration of the head and track body in FIG. 13. It is a partial perspective view seen from below. 15 and 16 are diagrams showing a golf practice device according to a sixth embodiment of the present invention, with FIG. 15 being a front view and FIG. 16 being a plan view. FIG. 17 is a front view showing a golf practice device according to a seventh embodiment of the present invention. FIG. 18 is a front view showing a golf practice device according to an eighth embodiment of the present invention. FIG. 19 is a front view of a golf practice device according to a ninth embodiment of the present invention. FIGS. 20, 21, 22, and 23 are views showing a golf practice device according to the Embodiment 1 of the present invention. In FIG. , FIG. 21 is a plan view, FIG. 22 is a view taken along line D--D in FIG. 20, and FIG. 23 is a sectional view taken along line E-E in FIG. 21. FIG. 24 is a cross-sectional view of the guide body showing a modification of the golf practice device according to the 0th embodiment of the present invention. 251 and 26 are views showing a golf practice device according to an eleventh embodiment of the present invention, FIG. 25 is a partial perspective view, and FIG.
The figure is a partial perspective view from below, showing the connected structure of the head and the rail body in FIG. 25. FIG. 27 is an exploded perspective view of a golf practice device according to a second embodiment of the present invention. 28 to 381 are diagrams showing a track body that can be used in the golf practice device of the present invention. FIG. 28 is a partial perspective view showing a first example of the track body, and FIG. F sectional view, 3rd
Figure 0 is a sectional view showing a second example of the rail body, No. 3]. The figure is the third
Figure 0 is a cross-sectional view showing the fourth example of the virtual body, and Figure 34 is the third example.
3 is a cross-sectional view showing a state in which a virtual ball is placed on it, FIG. 35 is a partial perspective view of the rail body having the cross section shown in FIG. 33, and FIG.
The figure is a sectional view showing a fifth example of the rail body, FIG. 37 is a sectional view showing a sixth example of the rail body, and FIG. 38 is a sectional view showing a seventh example of the rail body. FIG. 39 is an overall perspective view of a golf practice device according to a modification of the present invention, showing a case where a curved shaft and a track body are integrally formed. ]... Virtual ball, 2... Ground, 3... Virtual rolling line, 4... Head, 5... Hitting surface, 6... Shaft,
7...Rail body, 8.Contact part where the surface of the ball comes into contact with the rail body when the ball rolls on the rail body. 1 person for patent, Sadao Miyazaki, agent, patent attorney, Takashi Tani 719 Figure 20 Log 217 Ya 22 In

Claims (1)

[Scope of Claims] Consisting of a golf putter and a track body structured to be swung out in conjunction with the head of the golf putter, the track body is composed of two track body constituent parts, and the two track bodies The spacing between the rail body constituent parts is smaller than the ball diameter, and the distance between the rail body components is smaller than the ball diameter. - A golf practice device characterized in that when a ball is placed on the ball, the top of the bottom of the ball protrudes downward from the bottom of the rail bowl.