JPH048934Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Technical field) The present invention relates to a pat training machine.

(Background Art) Conventionally, various golf putt practice machines for indoor use have been provided. For example, Tokuko Sho 53-6578
When practicing with a wall-like object that does not have a cup and the ball passes between them, the ball is always passed through a path of the same width, and the level of the player is different. In addition to not being able to practice hot, the lack of a cup made the green feel quite different from the actual green, making it impossible to practice in a practical manner.

Also, those with a cup, for example,
In the case of No. 6380, which had a hole formed on the green and the ball was put into the hole, the hole was always the same size, so it had the disadvantage that players could not practice at their level.

Furthermore, those having a cup and an auxiliary cup,
For example, if you prepare several types of auxiliary cups of different sizes and replace them with one hole, practice to a certain extent by changing the size and width of the cup depending on the player's level. However, it is necessary to prepare multiple auxiliary cups, which is costly and may be lost. Furthermore, since the size of the cup can only be changed in stages, there are drawbacks such as the need to prepare many different types of auxiliary cups in order to obtain a desired size.

(Purpose of the invention) The present invention was proposed in order to eliminate the above-mentioned drawbacks, and its purpose is to provide an auxiliary cup width adjustment device that protrudes toward the center of the cup and is retractable. To provide a putting practice machine which allows the width of the cup to be continuously adjusted even without a cup and enables the player to practice putting by changing the degree of difficulty of the cut-in according to the skill level of the player.

(Disclosure of the invention) Fig. 1 shows an embodiment of the invention, and this park practice machine is equipped with a rectangular floor 1 on which artificial grass or the like is planted, and side walls surround it on three sides. 2, a central housing 3, and a ball return path housing 4 are provided upright, and between the floor 1 and the center housing 3 there is a wall extending downwardly from the side wall 2 toward the ball return path housing 4 at an angle of 5° or more. A ball throwing path 5 is formed which is inclined and extends into the ball return path housing 4.

Here, a large number of narrow grooves are formed on the surface of the ball throwing path 5 along the rolling direction of the ball in order to reduce the frictional resistance when the ball rolls. Further, a circular cup 6 is recessed in the center of the floor 1 near the ball throwing path 5, and a rotatable sending lever for sending the cupped ball into the ball throwing path 5 is provided in the cup 6 as described later. 7 are arranged.

Further, a display section 8 is provided on the front side of the central housing 3, and the display section 8 can display the number of balls that have been cupped in and the number of balls that have deviated to the left and right sides of the cup 6. Incidentally, a ball that deviates to the left or right is detected by sensors comprising switch springs 10, 11, etc. provided on the left and right sides of the back of the cup 6 on the floor 1.

Next, the cup width adjusting device A for making the width of the cup 6 variable will be described in detail. This cup width adjustment device A
As described below, a pair of width adjustment members 55, 5
6 and a gear 57 that drives them. First, as shown in FIG. 2, a guide groove 51 is provided in the vicinity of the upper end of the peripheral wall 50 on both sides substantially perpendicular to the ball traveling direction within the cup 6, and a positioning recess 52 is formed below the center of the guide groove 51. do. On the other hand, as shown in FIG. 3, FIG. 5, and FIG. 6, the width adjuster is housed in the guide groove 51 and has an approximately L-shaped planar shape with operating protrusions 53 and 54 that match the positioning recess 52. Members 55 and 56 are formed. The width adjusting members 55 and 56 are provided with rack portions 58 and 59, respectively, which engage the gear 57 from the front and back in front of the cup 6. Further, the upper and lower parts of the width adjusting members 55 and 56 are held down, protruded, and guided during storage in the peripheral wall 50 by a plurality of undercut ribs 61 provided on the inner surface of the housing 60 as shown in FIG. Furthermore, the gear 57 is attached to the inner boss 62 of the housing 60 with a screw 63 or the like.
7 causes the width adjusting members 55, 56 to protrude into the cup 6 by an equal length.

The distance d between the guide grooves 51 of the cup 6 is the ball 1
Although the width adjusting members 55 and 56 are set to be slightly larger than the width of the cup 6, they may be configured so that they touch each other when they protrude.This will prevent dust from entering the cup 6 during storage. can be prevented.

Next, referring again to FIG. 1, near the rear end edge of the floor 1, a band-shaped barrier member 64 that can be raised and lowered is erected over its entire length.

The support structure of the barrier member 64 will be explained with reference to FIGS. 7 to 9. A shaft portion 65 and a locking hole 66 are provided at both ends of the barrier member 64, and the side wall 2 and the ball return path housing are provided with a shaft portion 65 and a locking hole 66. A shaft hole 67 for receiving the shaft portion 65 and a locking hole 68 are provided in the inner wall of the shaft portion 4 . Reference numeral 69 denotes a spring, through which a shaft 65 is inserted through the center, one end 69a is locked in the locking hole 66 of the barrier member 64, and the other end 69a is locked in the locking hole 66 of the barrier member 64.
9b is fixed and attached within the locking hole 68 in the side wall 2 or the inner wall of the ball return path housing 4. Here, the spring 69 is set to such a strength that when the ball B collides with the barrier member 64, the barrier member 64 is pushed backward by the ball B and the ball B climbs over the barrier member 64. There is.

As shown in FIG. 8, the ball B is hit strongly and hits the wall of the central housing 3, attempting to return toward the floor 1. The returned barrier member 64 acts as an obstacle, and the ball B is reliably dropped into the ball throwing path 5. Further, as shown in FIG. 9, the ball B hit with the normal force will fall onto the throwing path 5 while pushing down the barrier member 64, and in any case, the ball B will be hit on the floor 1.
The ball can be reliably sent into the throwing path 5 without remaining on the ground, allowing continuous and efficient practice.

Note that the barrier member 64 is provided as necessary, and it goes without saying that the object of the present invention can be achieved even if the barrier member 64 is not provided as long as it has the cup width adjusting device A.

Next, the ball throwing mechanism H for sending the ball that has been caught into the ball throwing path 5 is shown in FIGS. 10 and 11.
This will be explained in detail along the diagram. In these figures, a feed lever 7 disposed at the back of the inclined bottom plate 6a inside the cup 6 is rotatable upward by approximately 90 degrees by a pivot shaft 14, and the feed lever 7 is provided with a lever 7 of the cup 6. A ring-shaped ball receiver 15 is provided at the bottom, and a locking pin 16 is provided at the tip on the side of the central housing 3. Furthermore,
A switch spring 17 for driving a first motor 21 (to be described later), which is supported at one end and can swing downward, is disposed in the through hole of the ball receiver 15, and a fixed contact plate 18 in contact with the switch spring 17 is arranged below the switch spring 17. Board 19
It is fixed at the top.

On the other hand, a motor support stand 20 is located inside the central housing 3 so as to be located slightly above the board 19.
is fixed, and a first motor 21 is attached to the upper surface of this motor support stand 20. The output shaft of this motor 21 passes through the motor support stand 20, and an approximately oval-shaped eccentric plate 22 is attached to the output shaft.
is fixed and can be rotated. On the front and back sides of the eccentric plate 22, there are a pair of locking bosses 23 facing each other and protruding toward the motor support base 20, and a pair of pressing bosses 24 vertically extending toward the board 19 in the vicinity of the eccentric shaft. It is formed. Also, press boss 2
A switch spring 25 for driving the motor 21, which is pressed and driven by the rotating press boss 24, is arranged on the base plate 19 so as to face the rotation path of the switch 4, and the tip of the switch spring 25 comes into contact with the switch spring 25. A fixed contact plate 26 is arranged below the eccentric plate 22.

Next, on the center line of the feed lever 7 on the side of the eccentric plate 22, a feed plate 27 having a substantially L-shape in plan view is disposed. A locking notch 28 is formed at the end of the feed plate 27 on the side of the feed lever 7, and the locking notch 28 locks with the locking pin 16 of the feed lever 7, and the other end of the feed plate 27 The portion is bent at right angles in the direction of the eccentric plate 22 to form a locking piece 29. Further, the feed plate 27 has one end connected to the motor support base 2.
A spring 30 fixed at zero is biased to constantly pull the feed lever 7 toward the motor support base 20. Here, the tip of the locking piece 29 can be locked to the locking boss 23 of the eccentric plate 22 that rotates eccentrically, and as the locking boss 23 rotates, the feed plate 2
7 is driven in the direction of the feed lever 7, and the spring 30 causes the feed plate 27 to return to its original position at the moment when the locking piece 29 and the locking boss 23 are disengaged.

Next, the ball return mechanism I will be described in detail with reference to FIG. 12. As shown in FIG. 12, a second motor 33 is fixed on the base plate 19 near the end of the ball throwing path 5, and an approximately oval-shaped eccentric plate 34 similar to the eccentric plate 22 is attached to the output shaft of the second motor 33. and can be rotated. A pair of locking bosses 35 are vertically provided on the back surface of the eccentric plate 34, and a ball return lever 38 is provided as described below.
The striking piece 39 or the ball return lever 38 can be driven against the spring 40 by being engaged with the striking piece 39 of the ball.

On the other hand, near the intersection of the ball throwing path 5 and the ball return housing 4, a fixed contact plate 36 is disposed on the base plate 19, and a ball B is slightly above the fixed contact plate 36.
A switch spring 37 for driving the motor 33 is arranged, which swings downward under its own weight and comes into contact with the fixed contact plate 36. One end of this switch spring 37 is attached to the base plate 19.
is fixed at the end of the In addition, the fixed contact plate 36
A substantially frame-shaped ball return lever 38 is disposed above the ball return lever 38, and a striking piece 39 extending in the direction of the eccentric plate 34 is integrally fixed to the end thereof on the eccentric plate 34 side.
Furthermore, the end of the ball return lever 38 on the ball return path housing 4 side is connected to a support member 41 via a spring 40.

To explain the operation, when a player putsts a ball and enters the cup 6 through the floor 1, the ball rolls on the bottom plate 6a in the cup 6 and reaches the ball receiver 15. At the same time, the switch spring 17 and the fixed contact plate 18 are closed by the weight of the ball B, and the first motor 21 and the eccentric plate 22 are driven. Now, the position of the eccentric plate 22 in the state before the ball B is cupped in is the first position.
As shown by the broken line in FIG. 1, one of the pressing bosses 24 is pressing the switch spring 25 at this time, and the fixed contact plate 26 is open. and,
When the motor 21 rotates as described above with the cup-in, the eccentric plate 22 rotates clockwise, and the switch spring 25 and the fixed contact plate 26 are closed by the movement of the press boss 24. Therefore, the rotation of the motor 21 is continued thereafter.

As the eccentric plate 22 rotates clockwise, one of the locking bosses 23 comes into contact with and locks the locking piece 29 of the feed plate 27, and thereafter, as the eccentric plate 22 rotates, the feed plate 27
moves toward the cup 6 while resisting the spring 30. At this time, the locking pin 1 is inserted into the locking notch 28.
The feed lever 7 to which the lever 6 is engaged rotates about the pivot shaft 14 so that the ball receiver 15 springs up backward, and finally rotates approximately 90 degrees as shown by the imaginary line in FIG. Therefore, the ball B is sent out from the ball receiver 15 into the ball throwing path 5 and rolls toward the ball return mechanism I.

On the other hand, after a while after the locking boss 23 and the locking piece 29 are disengaged, the linear part around the eccentric plate 22 comes close to the locking piece 29, so that the locking piece 29, that is, the feed plate 29 loses its grip and is instantly pulled back by the restoring force of the spring 30, and the 11th
At the same time as it returns to its original position as shown in the figure, the feed lever 7 also returns to the inside of the cup 6. At the same time, the rotating pressing boss 24 presses the switch spring 25 and separates it from the fixed contact plate 26, so that the motor 21
stops, and the feeding operation of ball B is completed. It is preferable that the rotational speed of the feed lever 7 is slowed down to some extent by adjusting the rotational speed of the motor 21, and that its return speed is made faster than that during ball feeding by adjusting the spring 30. Even if the next ball enters the cup 6 after the ball 7 has started to be driven, the ball is repelled by the feed lever 7 which instantly returns, and there is no fear that the ball will get stuck in the cup 6.

Next, the ball B rolled on the inclined ball throwing path 5 reaches the switch spring 37 as shown in FIG. 12, and closes the switch spring 37 and the fixed contact plate 36 by its own weight. This causes the second motor 33 to rotate, and the eccentric plate 34 to rotate counterclockwise. As the eccentric plate 34 rotates to the left, the locking boss 35 locks on the striking piece 39, and the striking piece 39 is driven rearward against the spring 40 as shown by the imaginary line in FIG. At this time, a switch spring 3 is installed near the intersection of the ball throwing path 5 and the ball returning path housing 4.
Guide bottom surface 4 that descends and slopes toward the proximal end of 7.
6 is provided, and as the striking piece 39 retreats, the ball B moves to the side of the eccentric plate 34 as shown by the imaginary line.

Thereafter, when the eccentric plate 34 further rotates, the locking boss 35 and the striking piece 39 are disengaged, and after a while, when the straight part around the eccentric plate 34 is reached, the striking piece 39 loses its grip, and the spring 40 The restoring force instantly moves the ball B toward the exit of the ball return path housing 4, and the ball B is struck to automatically and reliably return the ball to the player's feet.

(Effects of the invention) As described above, according to the invention, in a putting practice machine that includes a cup formed on the floor and a ball return mechanism that returns a ball that has entered the cup, the ball that protrudes into the cup is provided. , and has a width adjustment member that can be stored within the peripheral wall of the cup, and the pair of width adjustment members are equipped with a cup width adjustment device that is movable symmetrically with respect to the center of the cup, so that the width of the cup can be adjusted. The difficulty of the cup-in can be adjusted by continuously changing the cup, and the cup can be made without eccentricity, making it possible to conduct effective and practical practice according to the player's skill level. It has an effect not found in other countries.

Furthermore, since there is no need to prepare a plurality of auxiliary cups, it is possible to reduce costs, and there are also advantages such as there being no fear of losing auxiliary cups or troublesome storage.

Further, since there is no need to prepare a plurality of auxiliary cups, there are advantages such as cost reduction, and there is no risk of losing the auxiliary cups or troublesome storage.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view, Fig. 2 is an explanatory view of the cup, Fig. 3 is a plan view of the cup width adjusting device, and Fig. 4 is a C of Fig. 3. −
C cross-sectional view, Figure 5 is the D-D cross-sectional view of Figure 3, and Figure 6 is
The figure is a sectional view taken along line E-E in Figure 3, Figure 7 is a perspective view of the main parts, Figure 8 is a sectional view taken along line FF in Figure 1, and Figure 9 is a sectional view taken along line GG in Figure 1. Figure 10 is a central longitudinal sectional view;
FIG. 11 is an explanatory diagram of the ball throwing mechanism, and FIG. 12 is an explanatory diagram of the ball returning mechanism. 1...Floor, 6...Cup, 50...Peripheral wall,
55, 56... Width adjustment member, 57... Gear, 5
8, 59...Rack portion, A...Cup width adjustment device, B...Ball, I...Ball return mechanism.

Claims (1)

[Scope of utility model registration request] In a putt practice machine equipped with a cup 6 formed on a floor 1 and a ball return mechanism I for returning a ball B that has entered the cup 6, the ball B is protruded into the cup 6 in a substantially radial direction, and and a cup width adjustment device A having width adjustment members 55 and 56 that can be stored in the peripheral wall 50.
This is a putting practice machine in which the pair of width adjusting members 55 and 56 are movable symmetrically with respect to the center of the cup 6 by a rack-and-pinion differential mechanism.