JPH085733Y2 - Collection groove structure for golf driving range - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf driving range in which a rubber sheet is laid under the ground, and more particularly to a structure of a ball collecting groove installed in the golf driving range.

[0002]

2. Description of the Related Art Conventionally, a golf course has been a natural lawn with a flat ground, so the hit ball stays on the ground and the ball is collected at night time after the practice hours are over. It was done by hand and took a lot of time and money. As shown in FIG. 1, a golf driving range having an automatic ball collecting facility designed to save the labor as described above is generally provided with a batting table on one side of the field surrounded by a fence and a ball collecting groove on both sides. It is made by laying. Carpets are laid on the surface of the base instead of natural grass, and the base is graded so that the ball hits the groove in the practice field, greatly reducing the effort required to collect the ball.

However, in the case of such a base structure, since the carpet is usually made of synthetic resin, friction occurs when the ball hits the upper surface of the carpet while it rotates, and the friction heat melts the synthetic resin. adhering to the golf ball, things happen that must be cleaned waiting to ball is dirty. Moreover, in terms of collecting balls, since the carpet has hairs on the surface, the slope of the surface must be about 8 to 12% in order to ensure that the ball rolls down. Therefore, the problem that the amount of embankment increases due to the civil engineering work on the foundation surface and the steep slope,
The bounce direction of the hit ball inevitably changed to the bottom of the slope, giving the practitioner an unnatural feel.

Further, when a hit ball falls on a carpeted base, the carpet is displaced by the momentum of the hit ball to cause wrinkles, which deteriorates the appearance and causes the problem that the ball does not bounce in the wrinkled part. there were. Then, in order to deal with such a problem, as a base for a golf driving range, a base having a uniaxial strength of 10 to 30 kg / cm ² and a rubber sheet laid on the surface of a soil having a gradient of ² to 3% is used. Proposed to be used.

[0005]

[Problems to be Solved by the Invention] In the above-described golf driving range having a ball collecting function, the ball rolling on the base is dropped into the ball collecting groove and the ball rolling on the ball collecting groove is collected in the ball collecting pit. It has become. The ball collecting grooves are installed in various places such as both sides and the central part of the ground of the golf driving range, and of course, the hit balls fly to the places where the ball collecting grooves are installed. The ball collection groove usually has a structure in which a hard groove block made of concrete or the like is embedded in the ground soil, and both legs of the groove block are covered with a ball or a rubber sheet such as a rubber sheet.

The soil is hardened by adding a soil improving agent to some extent, but has a lower hardness than a hard groove block made of concrete or the like. Although the soil area around the grooved blocks is laid with a ball collection sheet, it is often sunk due to frequent impacts of the ball. If it is depressed, the ball will not be able to fall into the collecting groove and will accumulate in the depressed portion.If this happens, the ball will have to be dropped manually into the collecting groove later, and automatic collection will be performed. The effect of the ball is halved. Also,
When the hit ball hits the edge portion of the ball collecting groove, an impact may be applied while the surface ball collecting sheet is sandwiched between the groove block and the ball, and the surface ball collecting sheet may be destroyed.

The present invention solves such a problem, and does not cause the ball to accumulate even if a hit ball directly hits the periphery of the ball collecting groove, and the ball collecting groove structure for a golf driving range does not accumulate. Is an issue.

[0008]

[Means for Solving the Problems] That is, according to the present invention, there is provided a ball collecting groove which is installed in a golf driving range having an automatic ball collecting function in which a rubber ball collecting sheet is laid on the surface of a sloped soil. In the structure, the cross section L has a hardness of 60 ° to 75 ° from at least one edge portion of the hard groove-shaped block embedded in the soil to the soil around the groove-shaped block.
A character-shaped reinforcing mold member is hung on the edge portion, arranged and fixed, and covered with a ball-collecting sheet from above and fixed to the reinforcing mold member.

[0009]

[Advantage] According to the ball collecting groove structure for a golf driving range of the present invention, a reinforcing mold member is arranged from the edge of the hard grooved block embedded in the soil of the driving range to the surrounding soil, and from above. Since it is covered with a ball collection sheet, even if a hit ball collides with the groove-shaped block, the impact on the soil per unit area will be small due to the impact of the reinforcing die member on the surface, and the soil will collapse. In addition, the reinforcing die member does not go along the depressed portion even if there is depressed soil, and the periphery of the groove block can be kept flat. Further, even if the ball hits the edge portion of the groove-shaped block, the reinforcing mold member softens the impact, so that the falcon ball sheet can be prevented from being damaged. Further, since the reinforcing die member is arranged so as to be hung on the edge portion, the displacement is unlikely to occur.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic view of a golf driving range having an automatic ball collecting function, and FIG. 2 is a cross-sectional view of a base of the golf driving range. The golf driving range 1 is surrounded by a fence 2, a bat 3 is provided at one end, and a base 4 has a ridge 5 that rises in the center along the ball-hitting direction, and descends toward both sides. It has a slope. Ball collection grooves 6 are provided on both sides to collect balls that have fallen along the slope.

As shown in FIG. 3, the structure of the base 4 is soil 7
The sphere collecting sheet 8 is laid on the surface of the soil, and the soil 7 has a uniaxial compressive strength in the range of 10 to 30 kg / cm ² in order to obtain elasticity similar to that of a base made of natural grass. Specifically, the soil is strengthened by mixing a cement-based or lime-based soil improving material such as cement into the soil to obtain a soil soil cement. Further, when the soil 7 is particularly weak, the mixing ratio of the soil improving material varies depending on the soil quality, but considering that point, the mixing ratio in the range of 0.5 to 10% is preferable, and 3 to 5% is sufficient. To be strengthened. If the mixing amount is small, the soil is soft and the ball does not bounce too much, and if the mixing amount is too large, the soil 7 becomes too hard and the ball bounces too much.

The ball-collecting sheet 8 laid in the above-mentioned base structure is not particularly limited, but rubber having excellent weather resistance is preferably used, and EPDM is usually used. And the thing whose thickness is 0.8-3.0 mm is used. If the thickness is less than the above range, the strength is insufficient and the ball cannot withstand the impact of the hit ball. On the other hand, if the thickness is too thick, the bounce of the hit ball is affected again, giving an unnatural feeling to the practitioner. It is also possible to improve the appearance by using a two-layer structure sheet which is a surface collecting ball sheet 8 but is formed by laminating and integrating a black rubber sheet and a color rubber sheet such as green. In this way, by adopting a structure in which rubber sheets are laid on the soil that has been improved as necessary, the hitting ball bounces like natural grass, and the ball does not get dirty, and the natural grass is easy to maintain. It is possible to obtain a ground structure for a golf driving range that is significantly reduced compared to.

Further, in such an underlayer structure, unlike natural grass or carpet, there is no hair on the surface, so that the ball rolls easily, and therefore it is possible to use it to facilitate the ball collection work. The surface of the ball collecting sheet 8 is smooth, and in order to ensure that the ball rolls, a degree of inclination of 3% is sufficient. Generally, it is necessary to have a degree of inclination of about 10% to reliably roll a ball even on a carpet, which can be said to roll more easily than natural grass, but if the above structure is adopted, the amount of embankment during construction will be small, and Even for the practitioner, the change in the bouncing of the ball due to the inclination is less noticeable. FIG. 4 shows another structure in which the base 4 is inclined, but has a structure in which the collecting groove 6 is provided only on one side of the practice field and the top 5 of the soil is provided on the other side.

The collecting groove 6 is shown in cross section in FIG.
A hard groove-shaped block 9 made of concrete or the like is embedded in the soil 7 so as to be substantially flush with the soil 7, and an L-shaped reinforcing mold member 10 as shown in FIG. The edge portion 9a and the groove-shaped block 9 are installed so as to cover the periphery thereof and fixed with an adhesive 11 or the like. Further, the ball collection sheet 8 on the surface is covered thereover and adhered and fixed. The reinforcing die member 10 is made of rubber having weather resistance such as EPDM, and preferably has a hardness of 60 ° to 75 ° for shape retention and a thickness of about 5 mm to 7 mm. In terms of appearance, the color tone is the same as that of the surface ball-collecting sheet 8. If the hardness is less than 60 °, it becomes difficult to maintain the shape-retaining property, and if it exceeds 75 °, the hardness is too high and the shock absorbing property is deteriorated. When the thickness is less than 5 mm, the shape-retaining property becomes problematic and the strength of the reinforcing die member itself becomes weak, and when it exceeds 7 mm, the surface step becomes conspicuous, which is not preferable.

By adopting the above-mentioned structure, the reinforcing mold member 10 receives the impact of the hit ball on the soil 7 on its surface, so that the impact per unit area is weakened and the soil is unlikely to sink. Further, even if the soil 7 is depressed, the reinforcing mold member 10 has a hardness of 60 to 75 ° and is excellent in shape retention. The ball does not accumulate around. Further, even if the ball hits the edge portion 9a of the falcon ball groove 6, it is possible to prevent the impact from being softened by the reinforcing mold member 10 and destroying the ball collecting sheet on the surface. Also,
Since the reinforcing die member 10 is arranged so as to be hung on the edge portion 9a, it is possible to prevent the displacement.

[0016]

[Effects of the Invention] With the ball collecting groove structure for a golf driving range of the present invention, there is a problem in that the surroundings of the ball collecting groove are conventionally depressed due to the impact of a hit ball, and the ball accumulates in the depressed portion and cannot be collected. In order to solve the problem that the hit ball hits the edge of the collecting groove and the surface collecting sheet is destroyed, it is L-shaped from the edge of the grooved block embedded in the soil to the soil around the grooved block. The reinforcement die member is installed and the impact of the hit ball will be received on the surface, so the soil will not easily sink, and even if the soil is depressed, the hardness of the reinforcement die member will not follow the soil and the surface The shape can have a flat surface, and the ball can be smoothly dropped into the collecting groove. Further, even if the hit ball hits the edge portion of the ball collecting groove, the impact can be softened by the reinforcing die member, and the ball collecting sheet on the surface can be protected from being broken. Further, since the reinforcing die member is arranged so as to be hung on the edge portion, the displacement does not occur.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing the overall configuration of a golf driving range.

FIG. 2 is a sectional view of an essential part showing a base structure.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view corresponding to FIG. 3 according to another embodiment.

FIG. 5 is a cross-sectional view showing the structure of a ball collection groove.

FIG. 6 is a perspective sectional view of a reinforcing mold member.

[Explanation of symbols]

 1 Golf driving range 2 Fence 3 Batting 4 Underground 5 Top 6 Ball collecting groove 7 Soil 8 Ball collecting sheet 9 Groove block 9a Edge part 10 Reinforcing mold member 11 Adhesive

Claims (1)

[Scope of utility model registration request] 1. In a structure of a ball collecting groove to be installed in a golf driving range having an automatic ball collecting function in which a rubber ball collecting sheet is laid on the surface of sloped soil, a hard groove shape embedded in the soil From the edge of at least one side of the block to the soil around the groove-shaped block , the hardness is 60 ° to 7
Hang a reinforcing die member with an L-shaped cross section on the edge at 5 °
Te arranged fixed, golf driving converging ball groove structure, characterized in that fixed to the reinforcing type member covers thereon at the focal sphere seat.