JP3218640U - Golf tee - Google Patents

Abstract

Provided is a golf tee which is excellent in durability and elasticity and is easily decomposed even when left on the ground or in the ground.
A golf tee 1 on which a golf ball is placed, which is made of a resin containing a polylactic acid resin, a placement portion 3 for placing the golf ball, and an insertion portion 7 that is inserted into the ground. The connecting portion 5 having an axial shape disposed between the placing portion 3 and the insertion portion 7 is provided. Further, the connecting portion 5 is formed on the outer peripheral surface, and when the insertion portion 7 is embedded in the ground, a guide portion that serves as a measure of the height of the golf ball placed on the placement portion 3 from the ground. 15 and 17 are formed.
[Selection] Figure 1

Description

  The present invention relates to a golf tee.

  When golfing a tee shot, the golf ball is usually hit with a golf club while the golf ball is placed on a tee. Conventional general golf tees are often made of plastic.

  Further, Patent Document 1 discloses a golf tee to which a fluorescent paint is applied so that it can be easily found even if the golf tee flies during a tee shot.

Japanese Utility Model Publication No. 04-035467

When playing a tee shot in golf, the tee may fly along with the ball by hitting the club head, and may remain on the ground or in the ground. Conventional tees made of plastic are difficult to disassemble, so they are left as waste for a long period of time, which also contributes to hindering the growth of lawns and the like.
In the golf tee described in the cited document 1, a fluorescent paint is applied to the golf tee so that it can be easily found even if the golf tee flies when the golf tee is shot when the golf tee is shot. Is applied.

  In recent years, use of biodegradable materials has been studied from the viewpoint of environmental conservation. As a biodegradable material, for example, polylactic acid (PLA resin) is known as a plant-derived plastic material. However, polylactic acid materials are weaker in terms of durability and mechanical strength than conventional plastic materials, and are especially used as materials that make up tees that receive a large striking force during golf tee shots. There wasn't.

  The present invention has been made in view of the above circumstances, and is a golf tee using a plastic material containing polylactic acid (PLA resin), which has excellent durability and elasticity, and is left on the ground or in the ground. It is an object to provide a golf tee that is easily disassembled even in the event of a loss.

  A golf tee according to an embodiment of the present invention is a golf tee on which a golf ball is placed, which is made of a resin containing a polylactic acid-based resin, and a placement portion for placing the golf ball on the ground An insertion portion to be inserted, and an axially-shaped connection portion disposed between the placement portion and the insertion portion. The connection portion is formed on the outer peripheral surface, and the insertion portion is embedded in the ground. In some cases, a guide portion serving as a guide for the height of the golf ball placed on the placement portion from the ground is formed.

  By being configured as described above, the present invention can provide a golf tee that is excellent in durability and elasticity, and that is easily decomposed even when left on the ground or in the ground.

FIG. 1 is a perspective view showing the shape of a golf tee according to an embodiment of the present invention. FIG. 2 is a side view showing the shape of a golf tee according to an embodiment of the present invention. 3 is a cross-sectional view of the golf tee of FIG. 1 taken along line III-III. FIG. 4 is a diagram illustrating an example of a use state of the golf tee of FIG.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the shape of a golf tee according to an embodiment of the present invention. FIG. 2 is a side view showing the shape of a golf tee according to an embodiment of the present invention. 3 is a cross-sectional view of the golf tee of FIG. 1 taken along line III-III. FIG. 4 is a diagram illustrating an example of a use state of the golf tee of FIG.

  The golf tee 1 is disposed between the placement portion 3 for placing the golf ball, the insertion portion 7 to be inserted into the ground, and the placement portion 3 and the insertion portion 7. It has the connection part 5 which connects the insertion part 7. FIG.

  The placement portion 3 has a recess 11, and the golf ball is supported by setting the golf ball in the recess 11. The recess 11 has, for example, a bowl shape. The placement unit 3 can have, for example, a circular shape in plan view and a larger outer shape than the connection unit 5 and the insertion unit 7. As shown in FIGS. 1 and 2, the mounting portion 3 is formed so that the width becomes narrower from the upper end portion 9 of the mounting portion 3 toward the connecting portion 5 in a front view. The outer shape (diameter) of the mounting portion 3 is about 12 mm. The inner diameter (diameter) of the mounting portion 3 is about 8 mm. The depth of the recess 11 is about 5 mm. Moreover, the external shape of the connection part 5 is about 5 mm.

  The connecting portion 5 has, for example, a cylindrical shape. The mounting portion 3 is connected to one end of the connecting portion 5, and the insertion portion 7 is connected to the other end of the connecting portion 5. When the insertion part 7 of the golf tee 1 is embedded in the ground, the connecting part 5 has a first reference part 15 and a second reference part so that the depth from the tip part 13 to the ground surface layer can be understood. A portion 17 can be included. By having the reference portions (15, 17), the insertion depth of the golf tee 1 into the ground can be easily known, and the insertion depth can be adjusted. Thereby, since the height from the ground of the mounting part of the golf tee 1 or the golf ball mounted on the mounting part can be adjusted, the golf ball can be stably and easily used when performing a tee shot. It becomes possible to hit.

  As shown in FIG. 1, the first reference portion 15 is provided at a predetermined distance L from the tip of the placement portion 3. Further, the first guide part 15 and the second guide part 17 are provided apart from each other by a distance D. The distance L can be 35.0-45.0 mm, for example. The distance D can be, for example, 7.5 to 12.5 mm. In the present embodiment, the distance L is 40.0 mm, and the distance D is 10.0 mm. As shown in FIGS. 2 and 3, the first guide portion 15 and the second guide portion 17 may have a convex shape that slightly protrudes from the surface of the connecting portion 5, for example. Further, the reference portions (15, 17) may have a belt-like shape having a predetermined width. By having a belt-like shape, the strength of the golf tee 1 can be increased. This can prevent the golf tee from being broken or broken even when the golf tee is subjected to a large impact by hitting the club head when performing a tee shot in golf.

Alternatively, the first guide portion 15 and the second guide portion 17 may have a groove shape that is slightly recessed from the surface of the connecting portion 5, for example. In the present embodiment, the first reference portion 15 and the second reference portion 17 are provided, but only one first reference portion 15 may be provided, and three or more reference portions may be provided. You may do it. In addition, the reference portion may be colored. By coloring, it is possible to easily visually recognize the height position of the golf ball when teeing up.

  The insertion portion 7 can have a tapered shape with a tapered tip so that it can be easily inserted into the ground.

  The golf tee 1 can be made of a resin member containing a polylactic acid resin (PLA resin). For example, a polylactic acid resin can be contained in a weight ratio of 20% to 50% based on an ABS resin or the like. In general, polylactic acid-based resins are known as plant-derived plastic materials such as starch contained in corn, potatoes, etc., but compared to ABS resins and the like that are widely used as industrial plastic materials, The mechanical strength is low, and it has not been used as a material constituting a golf tee that receives a large striking force, particularly when taking a tee shot. In the golf tee 1 according to the present invention, by adjusting the composition ratio of the polylactic acid resin contained in the ABS resin, it is possible to obtain a golf tee having a mechanical strength that can withstand the striking force received during a tee shot. . Specifically, according to the knowledge of the inventor, it is found that sufficient mechanical strength can be ensured by setting the composition ratio of the polylactic acid resin contained in the ABS resin to 50% or less by weight. It was.

It has also been newly found that mixing a polylactic acid-based resin into an ABS resin can impart an appropriate elastic force to a golf tee while reducing the mechanical strength of the material. Bending strength can also be improved by improving the elastic properties of the golf tee. Further, the improved elastic characteristics make it easier to stably hold the position of the golf ball when playing a tee shot with golf, thereby enabling a stable tee shot. In addition, when a tee shot is performed using the golf tee of the present embodiment, the feel when the golf ball hits the face surface of the head portion at the tip of the golf club is good, and the club head comes off smoothly. Give me. For this reason, the ball can be thrown away.

  On the other hand, when the composition ratio of the polylactic acid resin contained in the ABS resin is small, if the polylactic acid resin of a predetermined composition or more is not included, the natural resolution that is a characteristic of the polylactic acid resin is not sufficiently exhibited, It has also become clear that it remains undecomposed. For example, when the composition ratio of the polylactic acid resin contained in the ABS resin is less than 20% by weight, the natural resolution of the polylactic acid resin cannot be sufficiently exhibited.

  Next, a method for manufacturing the golf tee 1 will be described below. First, a biomass plastic resin made of a polymer alloy obtained by mixing a polylactic acid resin and an ABS resin is prepared. The biomass plastic resin includes, for example, a polylactic acid resin in a range of about 20% to 50% by weight based on an ABS resin or the like. This biomass plastic resin is dried in a vacuum state or by hot air drying (drying temperature 50 ° C. to 120 ° C.). The time of this drying process is about 3 hours to 12 hours. Thereafter, using an injection molding machine, the biomass plastic resin is melted at a temperature of about 180 ° C. to 250 ° C., and is poured into a mold while being molded. The mold temperature at this time is set to about 40 ° C to 80 ° C.

1 golf tee 3 placement part 5 connection part 5
7 Insertion part 7
DESCRIPTION OF SYMBOLS 11 Concave part 13 Tip part 15 1st standard part 17 2nd standard part 20 Ground 30 Golf ball

Claims (1)

A golf tee for placing a golf ball,
It is made of resin including polylactic acid resin,
A placement section for placing a golf ball;
An insertion part to be plugged into the ground,
A shaft-shaped connecting portion disposed between the placing portion and the insertion portion,
The connecting portion is formed on the outer peripheral surface, and when the insertion portion is buried in the ground, a guide portion is formed which serves as a guide for the height of the golf ball placed on the placing portion from the ground. A golf tee characterized by that.

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