JPH11128436A - Starting base for park golf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a starting base for park golf excellent in cushioning property, draining property and weather resistance. SOLUTION: This starting base 8 is formed of a base 2 consisting of a water permeable elastic material formed by use of rubber and/or plastics, and an artificial lawn 4 laid thereon. The water permeable elastic material, for example, can be formed by molding a fibrous rubber by use of a binder, a mixture of the fibrous rubber with a golf ball pulverized matter by use of the binder, or the golf ball pulverized matter by use of the binder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a starting table for park golf which is installed on a tee ground of a park golf course.

[0002]

2. Description of the Related Art In recent years, ball games similar to golf called park golf have been played. What is Park Golf?
This is a competition in which a wooden or plastic club having no loft on the hitting surface and a plastic ball are used to compete for the number of hits from the start position (tee ground) to the hole.

[0003] As a starting table installed on a tee ground of a park golf course, a wooden box is filled with soil, a rubber mat is laid on the surface thereof, and an artificial turf is further stuck thereon. ing. However, in this starting table, the wooden box is susceptible to corrosion due to wind and rain, and has poor weather resistance.

[0004] On the other hand, Japanese Utility Model Laid-Open No. 7-22785 has proposed a starter for a park golf having excellent weather resistance. As shown in FIG. 5, the start base is composed of a square core material 2 coated with an FRP material 3 to form a base body 1, and a rubber sheet 4 or artificial grass is laid on the surface of the base body 1. On the back surface, a base receiving foot 7 in which a core material 6 is covered with an FRP material 3 is fixed.

[0005]

Problems to be Solved by the Invention
The base body used for the No. park golf start base is FR
Due to being covered with P material, it does not have elasticity and water permeability, so the start table on which a rubber sheet or artificial turf is laid on the base body is inferior in cushioning properties when a person stands on top, Further, since the drainage of the surface layer is poor, the player feels bad when standing on the starting platform, and cannot realize a sufficiently comfortable playing environment. As a similar starting table, there is one in which artificial grass is placed on a tray-shaped table made of FRP. However, this starting platform also had the same disadvantages as the starting platform of Japanese Utility Model Laid-Open No. Hei 7-22785.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a starting table for a park golf having excellent cushioning, drainage, and weather resistance.

[0007]

In order to achieve the above object, the present invention is characterized in that artificial turf is laid on a base made of a water-permeable elastic material formed using rubber and / or plastic. To provide a starting table for park golf.

The base used for the park golf start base of the present invention is made of a water-permeable elastic material formed of rubber and / or plastic, and therefore has elasticity, water permeability, and weather resistance. Artificial turf also has elasticity, water permeability, and weather resistance. Therefore, the start table of the present invention in which artificial turf is laid on the base has excellent cushioning properties when a person stands on the base, has good drainage properties, and has sufficient weather resistance.

Hereinafter, the present invention will be described in more detail. As shown in FIG. 1, the starting table of the present invention has an artificial turf 4 laid on a base 2 made of a water-permeable elastic material formed using rubber and / or plastic. In the figure, reference numeral 6 denotes a starting table installation surface such as the ground, a concrete surface, an asphalt surface and the like. In this case, there is no limitation on the method of constructing the start table 8 of the present invention. For example, after the base 2 is formed on the start table installation surface 6 at the site, in other words, the start table installation surface 6 is After the pavement, the artificial turf 4 can be fixed or placed on the base 2. This method is a so-called fixed type (or on-site construction type) method. In this case, it is preferable that the start table installation surface 6 is formed of concrete or asphalt.

[0010] The base 2 is preliminarily formed by using a mold or a wooden frame.
After the artificial turf 4 is fixed on the base 2 to form the start table 8, the obtained start table 8 can be transported to the start table installation surface 6 and installed. This is a mobile start platform. In this case, the start table installation surface 6 may be a soil surface if it is flat. The mobile starter has the advantage that the park golf course can be changed by changing the starting location.

In the present invention, the thickness t of the base 2 is 30
The thickness is preferably 80 to 80 mm, particularly 40 to 60 mm, from the viewpoint of obtaining more excellent cushioning property, drainage property and strength (particularly strength at the above-mentioned movable start table).
In addition, the starting table 8 is usually 1 m long and 1 m wide to 2 m long.
m and an area of about 2 m in width.

In the present invention, the type of the water-permeable elastic material forming the base is not limited, but the following materials can be particularly preferably used, and among them, those materials are preferable. A water-permeable elastic material formed by molding fibrous rubber or granular rubber using a binder. A water-permeable elastic material obtained by molding a mixture of fibrous rubber or granular rubber and a crushed golf ball using a binder. A water-permeable elastic material obtained by molding a crushed golf ball using a binder.

In the above-mentioned water-permeable elastic material, either fibrous rubber or granular rubber can be used, but fibrous rubber is preferably used in consideration of cushioning, drainage and strength. . Note that granular rubber may be appropriately mixed with fibrous rubber. Hereinafter, the present invention will be described by taking fibrous rubber as a preferred example.

As the fibrous rubber in the water-permeable elastic material, any kind of rubber made into a fibrous form can be used. Examples of the fibrous rubber include, but are not limited to, black fibrous rubber (black hijiki rubber) made from waste rubber materials such as vehicle tires and conveyor belts. The cross-sectional shape of the fibrous rubber is not limited, but usually a cross-section having a substantially circular cross section is used.

As the fibrous rubber, the length (fiber length) is 3
30 mm, especially 3 to 10 mm, and the thickness (fiber diameter) is 0.
It is preferable to use one having a size of 3 to 3 mm, particularly 0.5 to 2 mm. In this case, the fibrous rubber whose length and thickness are in the above ranges may be contained in the entire fibrous rubber in an amount of 30 to 50% by weight. If the length of the fibrous rubber is smaller than 3 mm, the strength and water permeability of the water-permeable elastic material may be deteriorated, and if it is larger than 30 mm, the moldability of the water-permeable elastic material may be deteriorated. On the other hand, if the thickness is smaller than 0.3 mm, the strength and water permeability of the water-permeable elastic material may be deteriorated.
If it is larger than mm, the moldability of the water-permeable elastic material may be deteriorated.

The crushed golf ball of the water-permeable elastic material may be a wound ball, a two-piece ball,
A used golf ball, such as a one-piece ball, obtained by crushing with a crusher can be used. Therefore, the above-mentioned crushed golf ball includes a rubber solid center of a wound ball, a crushed material of thread rubber and a synthetic resin cover, a crushed material of a two-piece ball rubber core ball and a synthetic resin cover, and a crushed material of a one-piece ball. Granular synthetic resin and granular rubber.

The crushed golf ball has a particle size of 3 to
It is preferable to use a mesh of 50 mesh, preferably 5 to 30 mesh. Particle size of crushed golf ball is 3
If the mesh is larger than the mesh, the adhesion retention of the crushed golf ball in the water-permeable elastic material may be deteriorated. If the mesh is smaller than 50, the cushioning property and the water permeability of the water-permeable elastic material may be reduced.

In the water-permeable elastic material, a mixture of fibrous rubber and crushed golf ball is formed using a binder. In this case, the proportion of the fibrous rubber in the mixture is 90 to 50% by weight, preferably 80 to 70% by weight, and the proportion of the ground golf ball is 10 to 50% by weight, preferably 20 to 30% by weight. is there. If the proportion of the crushed golf ball is less than 10% by weight, the advantage of adding the crushed substance (described later) may not be sufficiently utilized, and if the proportion is more than 50% by weight, the water-permeable elastic material may be too hard.

There is no particular limitation on the type of binder in the above water-permeable elastic material, and any binder can be used as long as it is a liquid curable binder such as a synthetic resin, a natural rubber, or a synthetic rubber. When the base is constructed and molded on site, a one-component moisture-curable urethane-based binder (eg, Takenate F-139 or F-151 manufactured by Takeda Pharmaceutical Co., Ltd.)
Is advantageous in terms of ease of construction, and when the base is molded in a factory, the use of a moisture-curable liquid urethane-based binder (for example, Takeda Pharmaceutical Co., Ltd. Takenate F-181P) is easy to manufacture. It is advantageous in terms of the point.

The compounding amount of the binder to the fibrous rubber in the water-permeable elastic material, the compounding amount of the binder to the mixture of the fibrous rubber and the ground golf ball in the water-permeable elastic material, and the golf ball in the water-permeable elastic material The blending amount of the binder with respect to the ground ball is 10 to 50 parts by weight, particularly 15 to 35 parts by weight, based on 100 parts by weight of the fibrous rubber, the mixture of the fibrous rubber and the ground golf ball, or 100 parts by weight of the ground golf ball. Is preferred. Further, the binder is particularly preferably 30 to 35 parts by weight when the base is constructed and formed on site, and 15 to 20 parts by weight when the base is formed using a mold or the like. If the amount of the binder is less than 10 parts by weight, the strength of the water-permeable elastic material is reduced, and the water-permeable elastic material becomes brittle and the durability may be reduced. If it is more than 50 parts by weight, the water-permeable elastic material is hard. Sometimes it becomes too much.

The method of manufacturing the base made of the water-permeable elastic material is not particularly limited. For example, a binder is added to fibrous rubber, a mixture of fibrous rubber and crushed golf ball or a crushed golf ball, followed by stirring. After the molding material is obtained in this way, the molding material is laid on the mounting surface of the start table, molded by a hot roller rolling, a hot iron, and the like, and then cured to obtain a base. Further, the base can be obtained by putting the molding material into a mold, molding it into a predetermined shape by hot press molding, room temperature press molding or the like, and then drying and curing it. In these cases, an optional component can be added to the molding material, if necessary, in addition to the binder.

FIG. 2 schematically shows the water-permeable elastic material, in which 12 is a fibrous rubber, and 14 is a binder bonding the fibrous rubber. Fibrous rubber 12
Are arranged horizontally or almost horizontally, but their directions are random. This water-permeable elastic material has excellent elasticity because the fibrous rubber 12 is molded using the binder 14. In addition, binder 14
Since the amount is such that it adheres to the surface of the fibrous rubber 12, many voids 16 are formed inside the water-permeable elastic material, and therefore, this water-permeable elastic material has good water permeability.

FIG. 3 schematically shows a water-permeable elastic material, in which 12 is a fibrous rubber, 18 is a crushed golf ball, and 14 is a fibrous rubber 12 and a crushed golf ball 18. Shows the bonding binder. In the water-permeable elastic material, there is a portion where the long and flexible fibrous rubber 12 is joined by the binder 14 via one or a plurality of small and hard ground golf ball materials 18. Therefore, the connection between the fibrous rubbers 12 is improved by the action of the ground golf ball 18 interposed between the fibrous rubbers 12, and the fibrous rubbers 12 are strongly connected to each other.
The hardness can be increased and the durability can be improved as compared with the water-permeable elastic material composed of only the fibrous rubber described above.
Moreover, in the water-permeable elastic material, by adjusting the mixing ratio of the ground golf ball in the mixture,
It is possible to adjust the properties of the water-permeable elastic material. This water-permeable elastic material has excellent elasticity because the fibrous rubber 12 and the crushed golf ball 18 are molded using the binder 14. In the water-permeable elastic material, the hardness and cushioning property of the base can be changed by changing the mixing ratio of the fibrous rubber and the golf ball by utilizing the difference in hardness between the two. Further, the water-permeable elastic material has a good water-permeability because a number of voids 16 are formed inside.

FIG. 4 schematically shows the water-permeable elastic material, in which 18 denotes a ground golf ball and 14 denotes a binder for bonding the ground golf ball 18. With the water-permeable elastic material described above, only the ground golf ball 18 is joined by the binder 14. Therefore, in the case of the water permeable elastic material, the properties of the ground golf ball 18 appear as it is in the water permeable elastic material, so that the hardness and durability of the water permeable elastic material are extremely high. This water-permeable elastic material is used to bind the ground golf ball 18 to the binder 14.
It has excellent elasticity because it is molded using Further, the water-permeable elastic material has a good water-permeability because a number of voids 16 are formed inside.

In the present invention, any artificial turf can be used, for example, those used in a usual golf driving range can be used. The artificial turf may be fixed to the base with an adhesive or may be simply placed, but is preferably fixed. Naturally, as the artificial turf, one having a structure in which the entire back surface is packed with a rubber material or the like is not suitable, and a structure that allows moisture to pass therethrough is used. When fixing the artificial turf to the base, for example, a one-component urethane-based adhesive can be used as the adhesive, but it is not necessary to apply the adhesive to the entire upper surface of the water-permeable elastic material, and the water-permeable To secure.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Example 1 A starting table for a park golf was constructed in accordance with the following procedures (1) to (3). (1) The fibrous rubber, the crushed golf ball, and the binder were put into a mixer and mixed. The fibrous rubber is a black fibrous rubber (so-called black hijiki rubber) manufactured from the surface rubber (tread rubber) of a used automobile tire, having a length of 3 to 30 mm and a thickness of 0.3 to 3 m.
m. As a crushed golf ball, a used golf ball mainly containing one-piece balls and two-piece balls and mixed with a small amount of thread-wound golf balls was crushed by a crusher to a particle size of 3 to 50 mesh. As the binder, a one-component moisture-curable urethane-based binder (Takenate F-139, manufactured by Takeda Pharmaceutical Co., Ltd.) was used. The weight ratio of fibrous rubber: ground golf ball was 7: 3. (2) The mixture obtained in (1) such that the surface is 1.5 m in length and 1.5 m in width, and the thickness is 50 mm on the permeable asphalt (starting table installation surface) whose surface is primer-treated. Was spread evenly. Further, the surface was rolled with a hot roller at 70 to 100 ° C. to flatten the surface. Thereafter, curing was performed at room temperature to obtain a base. (3) A commercially available artificial turf was fixed on the entire upper surface of the obtained base with a one-component urethane-based adhesive to complete a start table. This starting table was excellent in cushioning property, drainage property and weather resistance.

Example 2 A starting table for a park golf was constructed according to the following procedures (1) to (5). (1) A molding material was prepared in the same manner as in the procedure (1) of Example 1. (2) On the other hand, on a wooden flat plate, four square members were respectively arranged like one side of a square, thereby producing a square-shaped mold. At this time, the size of the part surrounded by the mold is 1.5 m
× 1.5 m, and the thickness of the square bar was 50 mm. (3) The material prepared in (1) was poured into the mold made of the square material obtained in (2) and spread uniformly. Further, the surface was rolled with a hot roller at 70 to 100 ° C. Thereafter, curing was performed at room temperature to obtain a base. (4) An artificial turf was fixed to the base obtained by removing it from the mold in the same manner as in Example 1, and a movable start base was completed. (5) The starting table was set on a previously leveled soil surface. This starting table was also excellent in cushioning property, drainage property and weather resistance.

[0028]

The start base for park golf according to the present invention has excellent cushioning properties when a person stands on the top and good drainage, so that the player feels good when standing on the start base, A sufficiently comfortable playing environment can be realized, and the weather resistance is sufficient.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a park golf start table according to the present invention.

FIG. 2 is a partially enlarged cross-sectional view schematically showing an example of the structure of a water-permeable elastic material.

FIG. 3 is a partially enlarged cross-sectional view schematically showing an example of the structure of a water-permeable elastic material.

FIG. 4 is a partially enlarged cross-sectional view schematically showing an example of the structure of a water-permeable elastic material.

FIG. 5 is an explanatory view (a perspective view and a partially enlarged sectional view) showing an example of a conventional park golf start base.

[Explanation of symbols]

 2 Base 4 Artificial turf 8 Park golf start stand 12 Fibrous rubber 14 Binder 18 Ground golf ball

Claims (5)

[Claims] 1. A starting table for a park golf, wherein an artificial turf is laid on a base made of a water-permeable elastic material formed of rubber and / or plastic. 2. The park golf start base according to claim 1, wherein the water-permeable elastic material is formed by molding fibrous rubber using a binder. 3. The starter for a park golf according to claim 1, wherein the water-permeable elastic material is formed by molding a mixture of fibrous rubber and crushed golf ball using a binder. 4. The starting table for a park golf according to claim 1, wherein the water-permeable elastic material is formed by molding a ground golf ball using a binder. 5. The starting table for a park golf according to claim 1, wherein the base has a thickness of 30 to 80 mm.