JPH0343910B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a golf cup on a green, and relates to an invention most suitable for an artificial grass green or a Sunday green.

Artificial turf has become rapidly popular in recent years, and is now being used in large quantities mainly at various ball game facilities.

Recently, however, a method of covering this artificial lawn with a covering material such as sand that is more similar to natural grass has appeared, and since it has good drainage, it has been proposed to use it on golf course greens. There is.

In addition, even with normal natural grass greens, drainage underground is poor, so surface drainage is required, and sand with good drainage is used for the top soil, so the layer on the surface of the green is a layer of sand. The so-called Sunday green is becoming more common.

As described above, both greens made of artificial grass and greens made of natural grass have sand interposed between the flocked pile threads or the grass leaves. When drilling a hole in the green and burying a golf cup, the cup is usually buried about 1 inch deeper than the ground surface to prevent the golf ball from hitting the edge of the cup and bouncing off. Since there is sand in the pile threads or between the grass blades, the sand flows into the cup from an inch above the top of the cup, which has been a problem.

Therefore, the inventor of the present invention investigated whether it was possible to somehow prevent the sand from flowing into the cup and create the same condition as if the cup was embedded in a grass green that had grown in a single layer of clay. The present invention was developed by focusing on a rubber plate as a material that has both flexibility and flexibility.

That is, the present invention relates to a golf cup on a green, in which a cylindrical cup is embedded and a part of a flexible cylindrical body such as a rubber plate is installed so as to be in contact with the outer periphery of the upper end of the cup. This is the structure of the cup.

The configuration of the present invention will be explained below.

FIG. 1 is a cross-sectional view showing a cup 1 provided on a green 10 made of artificial grass. .

To explain how to install a cup on an artificial or natural grass green, the depth of a cup is usually 17cm, so use a core cutter to dig a hole that is 1 inch deeper than that, or about 20cm deep and 10.6 to 11cm in diameter. Then, wrap a rubber plate 5 about 5 to 6 cm wide, 33 cm long, and 1 to 2 mm thick around the outer circumference of the cup so that it extends 1 inch upwards from the top of the cup, and wrap the edge of the rubber plate. Glue the parts together and embed them in the excavated hole to complete.

In this case, the cup may be embedded first and then a rubber plate is installed so as to contact the outer periphery of the upper end of the cup.

In addition, if the base for laying the artificial lawn is asphalt, determine the position of the cup before laying the asphalt, place an iron pipe larger than the cup in advance, and lay the asphalt. After laying the lawn, cut the artificial lawn in the pipe area into a circular shape, bury the cup and rubber board in the same manner as above, and complete the artificial lawn by covering it with a covering material.

The thickness and material of the rubber plate used here are very important; if it is too hard, the golf ball will bounce too hard and will not enter the green like a regular clay top layer. It requires a certain degree of flexibility, and if it is too flexible, the edge of the rubber plate may bend due to the pressure applied, so a certain degree of hardness is required, and it is necessary to select a rubber plate that meets these conditions. be.

As a way to avoid this selection of rubber plates,
By arranging a plastic plate on the back side of the rubber plate and placing a soft rubber plate on it, the golf ball can easily enter the ball without bouncing and will not bend due to pressure from the foot. In addition to rubber plates, other plates that can be used include urethane mats and palm mats formed by intertwining fiber threads.

As described above, the present invention provides a golf cup on a green in which a cylindrical cup is embedded and a part of a flexible cylindrical body such as a rubber plate is
Since the structure of the golf cup is such that it is installed so as to be in contact with the outer periphery of the upper end of the cup, the disadvantage that sand between the artificial grass or natural grass gets into the cup due to the action of the rubber plate is eliminated. Ta.

Furthermore, when puttying, the golf ball can be smoothly clipped in without bouncing, similar to a cup set on a clay-filled green.

[Brief explanation of drawings]

FIG. 1 is a sectional view illustrating the structure of a golf cup on an artificial grass green. In the figure, 1 is a cup, 2 is a base fabric, 3 is a pile yarn, and 4
is sand, 5 is a rubber board, and 10 is green.

Claims (1)

[Claims] 1. In a golf cup on the green,
A structure of a golf cup in which a cylindrical cup is embedded and a part of a flexible cylindrical body such as a rubber plate is placed in contact with the outer periphery of the upper end of the cup.