JPH0576471U - Golf tee - Google Patents

Abstract

(57) [Summary] [Purpose] Recovery after tee shots is not required, which eliminates time-consuming and labor-intensive recovery work and play time delays, and contributes to resource conservation. [Structure] At least one is molded integrally with sand such as core sand mixed with a hardening agent such as thermosetting resin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a golf tee used for golf.

[0002]

[Prior art and problems]

 Generally, a tee that is inserted into the ground to support a golf ball is used in a tee shot in golf play, but in the past, this type of tee was integrally molded by a plastic.

By the way, since the golf ball is placed on the upper surface of the tee, the tee is shot together with the ball at the time of hitting, and the player usually collects the ball after hitting it, or the collecting operator collects it later. However, since tees often enter the grass, not only time and effort are required to collect them, but there are also problems such as delaying the playing time, causing trouble to other players.

Further, since the conventional tea is made of plastic, there is a problem that it is not preferable from the viewpoint of resource saving.

The present invention solves the problems existing in the prior art as described above, and eliminates the need for recovery after the teaching, eliminating time-consuming and labor-intensive recovery work and delays in playing time, and saving resources. To provide a golf tee that contributes to

[0006]

[Means for Solving the Problems]

 The golf tee 1 according to the present invention is characterized by being integrally molded with sand such as core sand mixed with at least a curing agent such as a thermosetting resin.

[0007]

[Action]

 The golf tee 1 according to the present invention can be manufactured by a core molding technique for forming a hollow portion of a casting. Specifically, a material obtained by mixing sand and a curing agent is molded with compressed air. Blow in and mold. At the time of molding, the hardness or the degree of breakage of the tee 1 is adjusted by the pressure, the ratio of the curing agent, and the like.

As a result, the tee 1 is broken apart at the time of hitting the ball, scatters on the ground, and collapses due to deterioration over time due to exposure to sunlight, rain, etc., and is returned to part of the soil.

[0009]

【Example】

 Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

First, the structure and manufacturing method of the golf tee 1 will be described with reference to FIGS. 1, 2 and 4.

The golf tee 1 has a relatively large-diameter cylindrical shape having a pin-shaped lower portion 2 having a gradually decreasing diameter on the lower side and a ball receiving portion 4 having a spherical concave surface on the upper surface, which is continuous from the upper end of the lower portion 2. It consists of the upper part 3.

On the other hand, the tee 1 is molded by the tee molding machine 10 shown in FIG. The tee molding machine 10 mainly includes a mold 11 and a material blowing device 12. The mold 11 is composed of an upper mold 11a and a lower mold 11b, and a cavity 14 having the shape of the tee 1 is provided on the opposing surface thereof. Further, the material blowing device 12 is provided with a tank 16 containing the material 15, and the compressed air is supplied from above the tank 16 by a duct 17.

As the material 15, relatively inexpensive core sand for forming a hollow portion of a casting is used. At least a hardening agent such as a thermosetting resin that solidifies the sand is mixed with the core sand. In this case, the curing agent is selected so that the tee 1 is destroyed by hitting the ball and is also destroyed by deterioration over time due to exposure to sunlight or rain. It should be noted that any additive can be blended as necessary.

On the other hand, the bottom of the tank 16 and the cavity 14 communicate with each other via the blow port 18. The outlet 17a of the duct 17 and the inlet 18a of the blow port 18 are connected by a bypass tube 19 that bypasses a part of the compressed air supplied from the duct 17. The bypass tube 19 is formed to have a diameter that does not hinder the blowing of sand into the blow port 18. Reference numeral 20 is a control valve that adjusts the pressure on the bypass side by changing the diameter of the bypass tube 19, and can be changed by the controller 21.

Therefore, when compressed air is supplied to the duct 17, the core sand in the tank 16 is filled with the compressed air into the cavity 14 through the blow port 18, and molding is performed by the core molding technique. A part of the compressed air in the duct 17 passes through the bypass tube 19 and directly escapes to the blow port 18, so to speak, leading to the blowing of sand. As a result, the sand can be made to enter the corners and fine parts of the cavity 14 well. The necessary heat is applied to the upper mold 11a and the lower mold 11b. Further, the hardness or the degree of breakage of the tee 1 is adjusted by the pressure during molding, the ratio of the curing agent, other additives and the like.

Next, a method of using the golf tee 1 according to the present invention will be described with reference to FIG.

The tea 1 according to the present invention can be used in the same manner as a normal tea. That is, as shown in FIG. 3, the lower portion 2 is inserted into the ground E, and the golf ball B is placed on the ball receiving portion 4 of the upper portion 3. On the other hand, the tee 1 is broken apart by the hitting ball during the tee shot, and the fragments 1c ... Scatter on the ground E as shown in FIG. The scattered fragments 1c ... Are exposed to sunlight, rain, etc., and thus deteriorated over time, and thus returned to a part of the soil.

Although the embodiments have been described in detail above, the present invention is not limited to such embodiments, and the structure of the details, the manufacturing method, and the like can be arbitrarily changed without departing from the spirit of the present invention. it can.

[0019]

[Effect of the device]

 As described above, since the golf tee according to the present invention is integrally molded with sand such as core sand mixed with at least a curing agent, the following remarkable effects are exhibited.

Since there is no need to collect the tee after hitting the ball, it is possible to eliminate the delay in the collecting work and the play time which require time and labor.

Since sand, particularly core sand, can be used, it can be provided at low cost, and since plastic is not used, it can contribute to resource saving.

[Brief description of drawings]

FIG. 1 is a front view of a golf tee according to the present invention,

FIG. 2 is a plan view of the golf tee,

FIG. 3 is an explanatory view of using the golf tee,

FIG. 4 is a schematic cross-sectional view of a tee molding machine for manufacturing the golf tee,

[Explanation of symbols]

 1 golf tee

Claims (2)

[Scope of utility model registration request] 1. A golf tee characterized by being integrally molded with sand mixed with at least a curing agent. 2. The golf tee according to claim 1, wherein the sand is core sand.