JPH08257192A - Golf exercise device and ball feeder - Google Patents

Abstract

PURPOSE: To obtain a golf exercise device wherein an imitation slope can easily be presented at places outside a golf course, and allows a player to effectively exercise shots on slopes usually. CONSTITUTION: A golf exercise device is equipped with four multi-step legs 14 that are extendably connected to three cylinders, a top board 12 supported by the legs 14, a hydraulic on-off valve 30 and four hydraulic pipings that connect the hydraulic on-off valve 30 and multi-step legs 14. Hydraulic driving oil is filled in the cylinders of the multi-step legs 14, the hydraulic pipings and the hydraulic out-off valve 30. Opening and closing the hydraulic on-off valve 30 causes the communicating and blocked states between the multi-step legs 14 to be switched to one another.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf practice device and a ball supply device, and more particularly to a golf practice device that can effectively practice a shot on a ball placed on a slope, and a golf practice device for use in such a practice device. And a suitable ball replenisher.

[0002]

2. Description of the Related Art It is necessary to practice shots on a regular basis outside the course so that a nice shot can be made on a real golf course. For this reason, in a so-called "untouched" golf practice range, practice is being practiced to repeatedly shot a golf ball placed on artificial turf while replacing the club.

[0003]

By accumulating such practice, the sense of the club and the ball is improved to some extent, so that a certain effect can be certainly achieved. However, in the conventional golf driving range,
It was only possible to practice standing on a flat bat and hitting a ball placed on a flat surface. On the other hand, the plane is rather rare on the actual golf course, and most of them have to hit the ball placed on the slope while standing on the slope, and as a result of facing a situation that they have never practiced, it is quite difficult. There was a problem that I couldn't get a shot of the conscience.

The present invention has been devised in view of the above-mentioned problems of the prior art, and the purpose thereof is to easily produce a slope outside the course, so that it is possible to effectively practice slope driving from the ordinary. It is to provide a golf practice device that can be performed. Another object of the present invention is to provide a ball replenisher used for such a practice device.

[0005]

In order to achieve the above-mentioned object, a golf practice device according to the present invention comprises a plurality of multi-stage legs which are formed by telescopically engaging a plurality of cylinders having different diameters. A top plate portion supported by the multistage leg portion, a hydraulic opening / closing valve, and a plurality of hydraulic paths connecting the hydraulic opening / closing valve and each multistage leg portion, The cylinder, the hydraulic passage, and the hydraulic on-off valve are filled with oil for hydraulic drive, and the communication state and the closed state between the multi-stage legs are switched by opening and closing the hydraulic on-off valve.

The multi-stage leg portion is constructed in a three-stage type including, for example, a first cylinder, a second cylinder and a third cylinder. It is desirable that an opening / closing lever is attached to the hydraulic opening / closing valve and a means for constantly urging the opening / closing lever in the closing direction is provided. Further, the top plate portion may be formed by engaging the first plate member and the second plate member in a bendable manner via a hinge. It is desirable to stick a ball hitting sheet made of artificial grass on the surface of the top plate portion.

The ball replenisher according to the present invention is detachably attached to the top plate portion of the above golf practice device through engaging means, and has a hopper portion for accommodating a large number of golf balls and an upper end. An opening is connected to the hopper portion, and a lower end opening is disposed above the top plate portion of the golf practice device; a first shielding plate disposed in the middle of the delivery ball; And a second shielding plate disposed at a distance of approximately one golf ball between the first shielding plate and the second shielding plate, the first shielding plate being in a position to shield the golf ball in the ball delivery pipe. Is located at a position where the second shield plate passes the golf ball in the ball-transmitting pipe, and when the first shield plate moves to a position where the golf ball in the ball-transmitting pipe passes, the second shield plate moves in the ball-transmitting pipe. Both shields are driven so that they move to a position that blocks the golf ball. It was configured to be.

[0008]

In the golf practice device according to the present invention, when the hydraulic on-off valve is opened to establish communication between the multistage legs, the oil filled in each cylinder of the multistage legs is hydraulically routed. It can be distributed to each other. Therefore, if a part of the multi-stage legs is pressurized in this state, the multi-stage legs will contract and the oil inside will flow into the other multi-stage legs with a smaller load, and the multi-stage type of the inflow destination. This will extend the legs.
As a result, the lengths (heights) of the multi-stage legs are different, and correspondingly, the top plate portion supported by the multi-stage legs also forms an inclined surface. If the hydraulic on-off valve is closed here, the multistage legs are closed, and the oil flow is blocked, so that the inclination of the top plate is fixed.

In the ball replenishing device according to the present invention, when a plurality of golf balls are guided from the hopper into the ball feeding pipe, the first golf ball is first blocked by the first shielding plate. Next, when the first shielding plate is moved to pass the first golf ball, the second shielding plate interlocks and blocks the next golf ball, so that only one golf ball surely moves in the ball delivery pipe. It will be supplied from the lower end opening onto the top plate of the golf practice device. When the first shield plate is again moved to the position where the golf ball is shielded, the second shield plate is also moved to the position where the golf ball is passed in conjunction therewith, so that the first shield plate and the second shield plate are In the meantime, the next golf ball is loaded and it is in a standby state.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an overall image of the golf practice device 10, and FIG. 2 is a plan view showing the back side thereof.
As shown in the figure, this golf practice device 10 includes a substantially square top plate portion 12 and four multi-stage legs 14 attached near the four corners of the back surface of the top plate portion 12. This top plate 12 is
A rectangular first plate member 16 and a second plate member 18 are rotatably hinged to each other via a pair of hinges 20 and 20.
The first plate member 16 and the second plate member 18 are formed of a strong and lightweight material such as reinforced plastic or aluminum, and a frame portion 22 and a crosspiece portion 24 for improving strength are provided on the back surface side thereof. It is formed with a height of cm. Incidentally, only two of the four multi-stage legs 14 are attached to the corners on the back surface of the top plate 12, and the other two are attached to the positions with the corners removed.

A ball hitting sheet 26 made of artificial turf is attached to the surface of the first plate member 16. On the surface of the second plate member 18, a batted seat 28 made of a material having a high anti-slip effect such as rubber is attached. A hydraulic opening / closing valve 30 is attached to the back surface of the first plate member 16, and the hydraulic opening / closing valve 30 is connected to one end of each of four oil feed pipes 32 via a connecting member 34. The other end of each oil feed pipe 32 is connected to the multi-stage leg portion 14 via a connecting member 34, as will be described later in detail.

As shown in FIGS. 3 and 4, the hydraulic on-off valve 30 is formed by arranging a cylindrical body 38 inside a casing 36, and a valve rod 40 is integrally formed at one end of the cylindrical body 38. There is. An opening / closing lever 44 is connected to the tip of the valve rod 40 via a bolt 42. At the tip of the opening / closing lever 44, the first
Pedals 44a are formed. Further, a pair of grooves 46, 46 are formed in the valve rod 40, and O-rings 48, 48 for preventing oil leakage are fitted in each groove 46. The inside of the cylindrical body 38 forms a cavity, and four through holes 50 corresponding to the openings 32a of each oil feed pipe 32 are formed on the surface thereof.
When the open / close lever 44 is rotated about 30 degrees in the horizontal direction, the cylindrical body 38 is rotated as shown in FIG. 4 so that the through holes 50 communicate with the opening 32a of the oil feed pipe 32. As a result of moving to the position, the oil feed pipes 32 are connected to each other through the cylindrical body 38. On the other hand, the opening / closing lever
When 44 is rotated about 30 degrees in the vertical direction, as shown in FIG. 3, the cylindrical body 38 rotates in the opposite direction, the position of the through hole 50 is displaced, and the opening 32a of each oil feed pipe 32 is closed. Because
The communication connection state between the oil feed pipes 32 is also released. A first coil spring 51 is wound around the valve rod 40, and the opening / closing lever 44 is constantly urged in the vertical direction (closing direction) by the first coil spring 51.

As shown in FIGS. 5 and 6, the multistage leg portion 14 has a largest diameter first cylinder 52 located on the top plate 12 side and a diameter smaller than that of the first cylinder 52. It comprises a second cylinder 54 and a third cylinder 56 having a smaller diameter than the second cylinder 54. The second cylinder 54 is retractably housed in the first cylinder 52, and the third cylinder 56 is also retractably stored in the second cylinder 54.

A first lower end of the first cylinder 52 has a first edge on the periphery thereof.
An inward engaging edge portion 52a of the second cylinder 54 abuts against a first outward engaging edge portion 54a formed at a peripheral edge of an upper end opening of the second cylinder 54. It does not fall out of the No. 1 cylinder 52. In addition, a second inward engaging edge portion 54b is formed on the peripheral edge of the lower end opening of the second cylinder 54.
Is formed, and it abuts on the second outward engaging edge portion 56a formed on the peripheral edge of the upper end opening of the third cylinder 56, so that the third cylinder 56 can be prevented from falling off from the second cylinder 54. Absent. Each cylinder is made of aluminum or the like.

The first outwardly engaging edge of the second cylinder 54.
A circular groove 54c is formed in 54a, and an O-ring 48 is fitted in the groove 54c, so that the liquid tightness between the first cylinder 52 and the second cylinder 54 is maintained. . Similarly,
A circular groove 56b is also formed in the second outward engaging edge portion 56a of the third cylinder 56, and the O-ring 48 is fitted in the groove 56b. The liquid tightness between the third cylinders 56 is maintained.

The lower end surface of the third cylinder 56 is provided with a hole portion 56c having a thread formed therein. From the hole portion 56c, each cylinder, the oil feed pipe 32, and the hydraulic opening / closing valve 30 for hydraulically driving. After being filled with oil, the bolt 42 is screwed into the hole 56c.
Is blocked. Further, a leg receiving tray 58 is attached to the lower end surface of the third cylinder 56 via the bolt 42.
The leg receiving tray 58 is not firmly fixed to the lower end surface of the third cylinder 56 via the bolt 42.
There is some play between the two, so the leg tray
The 58 is swingable within a certain angle range.

The multistage leg portion 14 is bolted to a through hole of a flange 60 projecting from the upper end opening peripheral edge of the first cylinder 52.
It is fixed by inserting 42 and screwing the bolt 42 to a leg base 62 integrally formed on the back surface of the top plate 12. In addition,
Although only one bolt 42 is shown in the figure, it is actually fixed using four bolts.
Further, an oil feeding through hole 60a is formed in the flange 60, and a connecting pipe having a substantially L-shaped cross section is formed in the oil feeding through hole 60a.
64 are connected in communication. The opening end of the oil feed pipe 32 is connected to the other end opening of the connecting pipe 64 via a connecting member 34. An oil feeding groove 62 for connecting one end of the connecting pipe 64 and an upper end opening of the first cylinder 52 to the leg base 62.
a is formed.

In short, the hydraulic drive oil in each multi-stage leg portion 14 is communicatively connected to each other through the hydraulic passages including the oil feeding pipes 32, the connecting pipes 64, and the oil feeding grooves 62a and the hydraulic opening / closing valve 30. . As a result, when the hydraulic on-off valve 30 is opened and a certain multi-stage leg portion 14 is contracted to compress the oil in the cylinder (FIG. 6), the oil is the upper end opening of the first cylinder 52 → the leg base portion. 62 oil feed groove 62a → connecting pipe 64 → oil feed pipe 32 → via hydraulic on-off valve 30, other multi-stage legs with a smaller load
It flows into 14 and extends the multistage leg 14 (Fig. 5).
It will be. Note that if the amount of oil in the multi-stage leg 14 is too large or too small, it will be difficult for the oil to flow, and good stretchability of the multi-stage leg 14 will not be realized, so consider the desired degree of stretch. Therefore, it is necessary to adjust the amount of oil to be filled. For example, it is desirable to adjust the amount of oil so that two of the four multi-stage legs 14 can be completely extended and the other two can be completely contracted.

Next, how to use the golf practice device 10 will be described. First, the player stands on the batted seat 28 attached to the surface of the second plate member 18 and stands on the first plate member.
With the head of the golf club held in hand with the 16 side facing, the opening / closing lever 44 of the hydraulic opening / closing valve 30 is tilted about 30 degrees in the right hand direction (the direction against the bias of the first coil spring 51). At this point, the hydraulic on-off valve 30 is in the “open” state shown in FIG.
The multi-stage legs 14 are in communication with each other. Next, the top plate 12
A weight is applied to an arbitrary position on the upper side, for example, the back side, and the multistage leg portion 14 on the back side is contracted. As a result, the oil in the multi-stage leg portion 14 on the back side flows into the multi-stage leg portion 14 on the front side and relatively extends it. Therefore, as shown in FIG. Will be inclined to. The open / close lever 44
If you remove the golf club from the first coil spring 51
The opening / closing lever 44 is returned to the original position by the urging action of, and the hydraulic opening / closing valve 30 is automatically brought into the "closed" state shown in FIG. As a result, the multi-stage legs 14 are closed to each other, and the oil flow is blocked, so that the height of each multi-stage leg 14 is fixed. With the top plate portion 12 tilted appropriately, the hitting sheet 26
Placing the golf ball 66 on the top and hitting it makes it possible to practice in an environment similar to that of the actual golf course.

When it is desired to reverse the inclination of the top plate portion 12, if the weight is applied to the front side when the hydraulic open / close valve 30 is opened by operating the open / close lever 44, as shown in FIG. , The front multi-stage legs 14 contract and the back multi-stage legs 14
Is extended, and the inclination of the top plate portion 12 is opposite to the above. In addition,
The inclination of the top plate portion 12 is not limited to the above, and devises how to apply weight, such as falling left (up right), rising left (down right), rising front left, rising back left, rising front right, falling front right, etc. Then, by finely adjusting the degree of expansion and contraction of each multi-stage leg portion 14, a desired inclined surface can be realized. Since the predetermined play is provided between the lower end surface of the third cylinder 56 of each multi-stage leg portion 14 and the leg tray 58 as described above, it is interlocked with the inclination of the top plate portion 12. Thus, even if the angle of the multistage leg portion 14 with respect to the ground changes, the close contact state between the back surface of the leg tray 58 and the ground can be maintained.

As described above, the first plate member 16 and the second plate member 18 are rotatably connected via the hinge 20.
Moreover, since the multi-stage type leg portions 14 are also attached to the back surface of the top plate portion 12 by alternately shifting the positions, as shown in FIG. 9, fold the top plate portion 12 inward through the hinge 20. It becomes possible to store and transport it easily.

By the way, in the above, the hitting sheet 26
Although the description has been given on the assumption that the golf ball 66 is placed by hand, it is very cumbersome and impractical to place the golf ball 66 one by one in this way. Even in conventional golf driving ranges, various ball replenishers are used in which a pedal is operated by a head of a golf club or the like to sequentially deliver a golf ball onto a hitting sheet. Golf practice device 10 according to the present invention
Of course, you can apply these existing ball replenishers to
Since all of these are designed with the ball hitting sheet placed on a flat surface, there is a pity that the golf practice device 10 cannot sufficiently exhibit its function. Therefore, an optimum ball replenisher for use in the golf practice device 10 according to the present invention is proposed below.

That is, as shown in FIGS.
The ball replenishing device 70 includes a hopper portion 72 for accommodating a large number of golf balls 66, a cylindrical ball-sending tube 74 communicating with the bottom of the hopper portion 72, and a ball-sending tube 74 disposed in the middle of the ball-sending tube 74. It has a first shield plate 76 and a second shield plate 78. Hopper part
The legs 72 are supported by the legs 80 at a predetermined height. An engaging rod 81 is connected to the lower end of the leg 80, and the engaging rod 81 is inserted into a through hole 82a of an engaging fitting 82 projecting from the back surface of the top plate of the golf practice device 10. Then, the ball replenishing device 70 is detachably attached to the golf practice device 10 by screwing the cap 83 for preventing the ball falling off from the tip portion thereof. A stopper 84 for positioning is provided in the middle of the engaging rod 81. The inner surface of the bottom of the hopper 72 is
The golf ball 66 has an inclined surface or a curved surface so that the golf ball 66 concentrates on the upper end opening 74a of the ball feeding pipe 74. Above ball transfer tube 74
Forms a predetermined inclination angle with respect to the top plate portion 12,
The lower end opening 74b is a hitting sheet of the golf practice device 10 described above.
It is located above 26.

Between the first shielding plate 76 and the second shielding plate 78, a space 85 for one ball is provided, and the first shielding plate 76 is located above the ball feeding pipe 74. , The second shield plate
78 are vertically inserted into the ball-sending tube 74 from the lower side (however, the insertion directions of both shield numbers may be reversed). Further, the first shielding plate 76 and the second shielding plate 78 move up and down in conjunction with each other, and as shown in FIG. 13, the first shielding plate 76 lowers to lead the golf ball 66a.
The second shielding plate 78 is also lowered when blocking the
As shown in FIG. 14, when the first shielding plate 76 moves up to pass the front golf ball 66a, the second shielding plate 78
It also goes up and blocks the next golf ball 66b. By the cooperation of the first shield plate 76 and the second shield plate 78, one golf ball 66 can be reliably operated by one vertical movement of each shield plate.
Can be supplied onto the hitting sheet 26. In addition,
The tip sides of the first shield plate 76 and the second shield plate 78 are shown in FIG.
As shown in FIG. 5, since each is formed in a curved shape in accordance with the shape of the golf ball, it is possible to surely switch between passing and blocking of the golf ball 66 even if the amount of vertical movement is extremely small.

FIG. 16 is a schematic view showing an example of a drive mechanism for the first shield plate 76 and the second shield plate 78. As shown in the drawing, the right end of the first shield plate 76 and the right end of the second shield plate 78 are connected via the frame 86, and L is connected to the frame 86.
One end of the V-shaped rod 87 is connected. The other end of the L-shaped rod 87 is connected to the shaft 88. Further, one end of a linear rod 89 is connected to the opposite side of the shaft 88. A second pedal 89a is connected to the other end of the linear rod 89. Although not shown, the shaft 88 is rotatably attached to a bearing removably arranged on the back surface of the top plate 12. As a result, when the second pedal 89a is pushed down, both the first shield plate 76 and the second shield plate 78 move upward. In addition, the shaft 88 has a first shield plate 76.
Also, since the second coil spring 90 that constantly urges the second shield plate 78 downward is wound, the second pedal 89
When a is opened, the first shield plate 76 and the second shield plate 78 are automatically returned to their original positions by the biasing action of the second coil spring 90. In order to prevent the shaft 88 from rotating more than necessary, it is desirable to provide an appropriate stopper means. Note that, for convenience of illustration, the description of the drive mechanism is omitted in FIGS. 10 and 11.

As shown in FIG. 12, the second pedal 89 described above is used.
a is the first for operating the hydraulic on-off valve 30 on the front side of the top plate portion 12.
It is arranged side by side with the pedal 44a. Therefore, the player may play the first pedal 44a on the golf club head.
Tilt downward to adjust the degree of inclination of the top plate portion 12, then similarly tilt the second pedal 89a downward with the head to move the ball 66
Can be easily set on the hitting seed 26. As is clear from FIGS. 10 and 11, the ball replenisher 70 itself also inclines in response to the inclination of the top plate portion 12, so that even if the top plate portion 12 inclines to the limit in any direction, the ball 66 is surely fed. So that it can be dropped onto the top plate 12
It is necessary to determine the inclination angle of (when the inclination angle is too loose, the inclination amount of the top plate portion 12 is offset to be horizontal or reverse inclination). In addition, many projections 26 are formed on the surface of the hitting sheet 26.
By forming a (FIGS. 10 and 11), it is possible to effectively prevent the golf ball 66 from rolling off the hitting sheet 26.

The above embodiment is merely an example of the present invention, and the present invention is not limited to this. For example, in the above, the multi-stage leg 14 is connected to the first cylinder 52 ...
An example of a three-stage type including the third cylinder 56 has been shown.
It may be a two-stage type in consideration of cost, or may be a four-stage type or more in order to widen the height difference during expansion and contraction. Also, the material of each member is not limited to the above, and various materials can be appropriately adopted as long as they do not violate the gist of the present invention.

[0028]

According to the golf practice device of the present invention,
The top plate can be tilted in the desired direction and angle by opening and closing the hydraulic on-off valve and pressing the arbitrary multi-stage legs. It is possible to practice in an environment similar to the course. Also,
In the ball replenisher according to the present invention, the balls can be reliably supplied onto the top plate portion one by one by the cooperation of the first shield plate and the second shield plate.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall image of a golf practice device according to the present invention.

FIG. 2 is a plan view showing a back surface side of the golf practice device.

FIG. 3 is a sectional view showing a closed state of a hydraulic opening / closing valve.

FIG. 4 is a cross-sectional view showing an opened state of a hydraulic opening / closing valve.

FIG. 5 is a cross-sectional view showing the extended state of the multistage leg portion.

FIG. 6 is a cross-sectional view showing a contracted state of the multistage leg portion.

FIG. 7 is a perspective view showing a tilted state in which the front side of the golf practice device is raised.

FIG. 8 is a perspective view showing a tilted state in which the back side of the golf practice device is raised.

FIG. 9 is a perspective view showing a state in which the golf training device is folded.

FIG. 10 is a sectional view showing a ball replenisher according to the present invention.

FIG. 11 is a cross-sectional view showing the ball replenisher.

FIG. 12 is a plan view showing a state where the ball replenishing device is attached to a golf practice device.

FIG. 13 is a cross-sectional view showing a state where the first shield plate and the second shield plate of the ball replenisher are lowered.

FIG. 14 is a cross-sectional view showing a state where the first shield plate and the second shield plate of the ball replenisher are raised.

FIG. 15 is an explanatory diagram showing the shapes of the first shielding plate and the second shielding plate.

FIG. 16 is a schematic diagram showing a drive mechanism for a first shield plate and a second shield plate.

[Explanation of symbols]

 10 Golf practice device 12 Top plate part 14 Multi-stage leg part 16 First plate member 18 Second plate member 20 Hinge 26 Hitting seat 30 Hydraulic opening / closing valve 32 Oil supply pipe 44 Opening / closing lever 51 First coil spring 52 First Cylinder 54 Second Cylinder 56 Third Cylinder 66 Golf Ball 70 Ball Replenisher 72 Hopper 74 Ball Pipe 76 First Shielding Plate 78 Second Shielding Plate 85 Spacing

Claims (6)

[Claims] 1. A plurality of multi-stage legs formed by telescopically engaging a plurality of cylinders having different diameters, a top plate portion supported by the multi-stage legs, a hydraulic on-off valve, and A plurality of hydraulic passages connecting between the hydraulic on-off valve and each multistage leg are provided, and oil for hydraulic drive is filled in each cylinder of the multistage leg, the hydraulic passage, and the hydraulic on-off valve. Along with the opening and closing of the hydraulic on-off valve, the multi-stage leg section is switched between a communication state and a closed state. 2. The golf practice device according to claim 1, wherein the multi-stage leg is a three-stage type including a first cylinder, a second cylinder and a third cylinder. 3. The golf practice device according to claim 1, wherein an opening / closing lever is attached to the hydraulic opening / closing valve, and means for constantly urging the opening / closing lever in a closing direction is provided. 4. The top plate portion is formed by engaging a first plate member and a second plate member so as to be bendable via a hinge. Golf practice equipment. 5. The golf practice device according to claim 1, wherein a ball hitting sheet made of artificial turf is attached to the surface of the top plate portion. 6. A ball replenisher detachably attached to a top plate portion of the golf practice device via engaging means, the hopper portion accommodating a large number of golf balls, and the upper end opening having the hopper portion. Of the ball-pitching pipe, the lower end opening of which is arranged above the top plate portion of the golf practice device, the first shield plate which is arranged in the middle of the ball-pitch pipe, and the first shield plate. A second shielding plate disposed at an interval of approximately one golf ball between the first shielding plate and the second shielding plate when the first shielding plate is in a position of shielding the golf ball in the ball delivery pipe. Is located at a position where the golf ball in the ball-transmitting tube passes, and when the first shield plate moves to a position where the golf ball in the ball-transmitting tube passes, the second shield plate blocks the golf ball in the ball-transmitting tube. Both shields are driven so as to move to the position. A ball replenisher.