JPH0621661U - Collection groove structure for golf driving range - Google Patents

Abstract

(57) [Summary] [Purpose] Preventing the circumference of the ball collection groove from sinking,
Prevents the automatic ball collection from being hindered and prevents the ball on the edge surface of the ball collecting groove from being destroyed [Structure] A rubber ball collecting sheet on the surface of the graded soil 7. In the structure of the ball collecting groove 6 installed in the golf driving range 1 having the automatic ball collecting function in which 8 is laid, at least one edge portion 9a of the groove block 9 embedded in the soil 7
The reinforcing mold member 10 is arranged and fixed from the tip to the surrounding soil, and the reinforcing mold member 1 is covered with the ball collection sheet 8 from above.
It was fixed at 0.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 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]

[Prior art]

 Traditionally, golf courses used to be a natural lawn with a flat ground, so the hit ball remains on the ground and the ball is collected by human hands at night after the practice hours are closed. It took a lot of time and money. As shown in Fig. 1, a golf practice range equipped with an automatic ball collection facility designed to save the effort described above generally has a batting area on one side surrounded by a fence as shown in Fig. 1 and both sides collect the ball. It is made by laying a groove. 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. It adheres to the golf ball and becomes dirty and must be closed and cleaned. In addition, in terms of collecting balls, since the carpet has hair on the surface, the slope of the surface must be about 8 to 12% in order to ensure that the ball rolls down. As a result, the amount of embankment increased due to the civil engineering work on the foundation surface, and the steep slope caused the ball to bounce inevitably downwards on the slope, giving the practitioner an unnatural feel.

[0006] Furthermore, when a hit ball falls on a carpet-covered substrate, the momentum of the hit ball causes the carpet to be displaced, causing wrinkles, which deteriorates the appearance and causes the problem that the ball does not bounce in the wrinkled part. there were. In order to deal with such a problem, a uniaxial strength of 10 to 30 kg / cm ² as a ground for a golf driving range and a rubber sheet laid on the surface of a soil with a gradient of ² to 3%. Is proposed to be used.

[0005]

[Problems to be solved by the device]

 In the above-mentioned 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. The ball collecting grooves are installed at various places such as both sides and the central part of the ground of the golf driving range, and of course, the hit ball also hits the place where the ball collecting grooves are installed. The ball collection groove is usually constructed by embedding a hard groove block made of concrete in the ground soil, and covering both ends of the groove block with a carpet or 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 part around the groove block is laid with a ball collecting sheet, it is often sunk by the collision 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, it will be necessary to manually drop the ball into the collecting groove later, and automatic collection will be performed. The effect of the ball is halved. Further, 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 the hit ball directly hits the circumference of the ball collecting groove, and the ball collecting groove structure for a golf driving range does not accumulate. The challenge is to provide structures.

[0008]

[Means for Solving the Problems]

 That is, in the present invention, the structure of the collecting groove installed in the golf driving range having the automatic collecting function in which the rubber collecting sheet is laid on the surface of the graded soil is embedded in the soil. The reinforcing groove member is arranged and fixed from the edge of at least one leg of the hard groove-shaped block to the periphery of the block, and the ball collecting sheet is covered from above and fixed to the reinforcing groove member. To do.

[0009]

[Action]

 According to the golf drip collecting groove structure of the present invention, a reinforcing mold member is laid from the end of the leg portion of the hard grooved block housed in the soil of the driving range to the surrounding soil. Since the ball collection sheet is covered from above, even if the ball hits the groove-shaped block, the impact given to the soil is weakened by the reinforcing mold member, making it difficult for the soil to collapse, and even if the soil collapses. The reinforcing mold member does not stay along the depressed soil and can maintain the flatness around the groove block. Further, even if the ball hits the edge of the groove-shaped block, the reinforcing mold member acts as a cushion and also protects the ball collecting sheet on the surface.

[0010]

【Example】

 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 the 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 base 4 has a structure in which a collecting sheet 8 is laid on the surface of the soil 7, and the soil 7 is uniaxial in order to obtain elasticity similar to that of the base made of natural grass. The compressive strength is in the range of 10 to 30 kg / cm ² . Specifically, soil is strengthened by mixing cement-based or lime-based soil improvers such as cement into the soil to make soil soil cement. When the soil 7 is particularly weak, the mixing ratio of the soil conditioner varies depending on the soil quality, but taking this into consideration, 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 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 it is thinner than the above range, the strength is insufficient and it cannot withstand the impact of a hit ball. On the contrary, if it 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 the surface of the ball collecting sheet 8 but is formed by laminating and integrating a black rubber sheet and a color rubber sheet such as green. By adopting a structure in which rubber sheets are laid on the soil improved as necessary in this way, the hit ball has a bounce similar to natural grass, and the ball does not get dirty, and it is also natural in terms of maintenance. It is possible to obtain a ground structure of a driving range that is significantly reduced compared to turf.

Further, in such an underlayer structure, unlike natural grass and carpet, there is no hair on the surface, so the ball rolls easily, and therefore it is possible to use this to facilitate the ball collection operation. 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% for a ball to roll properly even on a carpet, which can be said to roll more easily than natural grass. However, 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 shape in which the base 4 is inclined, but the structure is such that 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.

A cross section of the ball collection groove 6 is shown in FIG. 5, and a hard groove 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 is shown in FIG. Such an L-shaped reinforcing mold member 10 is installed so as to cover the edges 9a of both legs of the grooved block 9 and the periphery of the grooved block 9, and is 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 mold 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 retention property, and if the hardness exceeds 75 °, the hardness is too high and the shock absorbing property is deteriorated. If 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 if it exceeds 7 mm, the surface step becomes conspicuous, which is not preferable.

With the above-described structure, the reinforcing mold member 10 weakens the impact of the hit ball on the soil 7 and the soil is unlikely to sink. 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 ball collecting groove 6, the impact is absorbed by the reinforcing mold member and the ball collecting sheet on the surface is prevented from being destroyed.

[0016]

[Effect of device]

 In the groove structure for a golf driving range of the present invention, the problem that the surroundings of the conventional collecting groove is depressed due to the impact of the hitting ball, and the ball accumulates in the depressed part and the ball cannot be collected, or the hitting ball is the edge of the collecting groove. In order to solve the problem that the ball collection sheet on the surface is destroyed by hitting a part, an L-shaped reinforcing mold is applied from the end of both legs of the groove block embedded in the soil to the soil around the groove block. By installing a member, the impact of the hit ball applied to the soil is weakened, and the soil is less likely to sink, and even if the soil sinks, the hardness of the reinforcing mold member does not follow the soil and the surface is flat. It can be kept, 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 absorbed by the reinforcing die member, and the ball collecting sheet on the surface can be protected from being broken.

[Submission date] June 28, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

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. Te attached to the golf ball, things happen that must be cleaned me the ball is dirty or. In addition, in terms of collecting balls, since the carpet has hair on the surface, the slope of the surface must be about 8 to 12% in order to ensure that the ball rolls down. As a result, the amount of embankment increased due to the civil engineering work on the foundation surface, and the steep slope caused the ball to bounce, which inevitably changed to the downward direction of the slope, giving the practitioner an unnatural feeling.

[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

[Procedure amendment]

[Submission date] June 28, 1993

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

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 A golf club characterized in that a reinforcing die member is arranged and fixed from the edge portion of at least one leg of the block to the periphery of the groove-shaped block, and the ball collecting sheet is covered from above and fixed to the reinforcing die member. A collecting groove structure for practice areas.