JP2003062138A - Club head for park golf and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a circular wooden part to appear on a face ball-hitting surface so that it is know that a club head is made of wood. SOLUTION: A carbon plate 14 is bonded integrally to a club head base material 12 obtained by adhering a plurality of wooden club head material plates having respectively necessary area and thickness with an adhesive, or to the face surface 142 of the club head base material 12 of a necessary shape through the adhesive and an adhesive member. A circular through holes 12c and a circular fitting hole 12b having necessary diameters and depths are respectively bored at the necessary places of the carbon plate and the face surface of the wooden club head base material. After a wooden circular fitting member 18 is fitted integrally in the circular through hole and the circular fitting hole 12b with the adhesive, the face surface of the carbon plate and the tip face of the wooden circular fitting member are made to be flat to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a club head for a park golf and a method of manufacturing the same, and more specifically, the strength of the club head for coping with an impact when a ball for exclusive use with a park golf is hit. The present invention relates to a club head for a park golf in which the manufacturing process of the club head is facilitated and the club head is remarkably reinforced, and a manufacturing method thereof.

[0002]

2. Description of the Related Art Recently, park golf has been rapidly developed in Japan, and various kinds of tools such as clubs for park golf and club heads have been proposed in response to the rapid progress. Park golf is a competition in which a large, hard plastic ball is struck with a club head, and the face is easily damaged by the wood. Therefore, the face is reinforced with a carbon plate.

The club head for a park golf is an international park.
According to the Kurgolf Association's standards for park golf play equipment, the club weighs less than 600 grams and has a length of 86.
It is stipulated that the head should be less than a centimeter, the head should be made of wood, and the face striking face can be reinforced with carbon, FRP (glass fiber reinforced synthetic resin), etc., but cannot be reinforced by impregnating with synthetic resin.

Further, according to the standards for tools of the association, it is necessary to make a circular wooden portion visible on the face striking face as shown in FIGS. 1 to 3, so that the club head is made of wood. .

Tools such as park golf clubs and club heads have been proposed. For example, as shown in FIGS. 9-12, according to known manufacturing methods, a wooden club head 42 may be used.
The face surface 42a of the above is cut to leave the cylindrical protrusion 42b, and the screw hole 44a for screwing the cylindrical protrusion 42b into the face surface 42a and the screw hole 4 such as the screw / bolt 46.
4a and the screw hole 44 formed in the carbon plate 44
The cylindrical projection 42b is screwed into the inside of the
The carbon plate 44 is integrally bonded to a through an adhesive,
Through the steps of screwing the screw bolt 46 into the screwing hole 44a and fitting the shaft 48 into the fitting hole 42b, the park golf club head 40 is manufactured.

[0006]

[Problems to be Solved by the Invention]
The club head for black golf has a complicated manufacturing method, an increased number of steps, and is extremely inefficient. Further, when the club head base material is a bare wood, there is a big problem that the strength cannot be sufficiently obtained.

[0007]

SUMMARY OF THE INVENTION The present invention is a publicly known part.
It is intended to eliminate the above-mentioned defects of the club head for black golf, and the first gist thereof is to integrally form a carbon plate through an adhesive and an adhesive member on the face surface of a wooden club head base material having a required shape. Bonding, forming a circular through hole having a required diameter and a required depth and a circular fitting hole at a required position on the face surface of the carbon plate and the wooden club head base material, respectively, and forming the circular through hole and the circular through hole. And a step of flattening the face surface of the carbon plate and the tip surface of the wooden circular fitting member by integrally fitting a wooden circular fitting member into the circular fitting hole with an adhesive. This is a method of manufacturing a club head for a park golf.

A second gist of the present invention is to integrally bond a plurality of wooden club head material plates each having a required area and a thickness with an adhesive to form a club head base material, the carbon plate and the wooden member. A circular through hole having a required diameter and a required depth and a circular fitting hole are respectively formed and formed at required places on the face surface of the club head base material, and a wooden circular fitting is made in the circular through hole and the circular fitting hole. The mating members are fitted together with an adhesive,
A method for manufacturing a club head for a park golf, which comprises a step of flattening the face surface of a bon plate and the tip surface of the wooden circular fitting member.

A third gist of the present invention is a club head for a park golf in which each wooden club head material plate has a thickness of 0.8 mm to 1.49 mm.

A fourth gist of the present invention is that a face surface of a club head base material in which a wooden club head base material having a required shape and a plurality of wooden club head material plates each having a required area and a thickness are integrally bonded with an adhesive. A carbon plate is integrally bonded to the above with an adhesive and an adhesive member, and a circular through hole and a circle having a required diameter and depth at a required position on the face surface of the carbon plate and the wooden club head base material. After forming and forming a fitting hole, a wooden circular fitting member is integrally fitted in the circular through hole and the inside of the circular fitting hole by an adhesive, and the face surface of the carbon plate and the A club head for a park golf, which is a club head for a park golf in which the front end surface of a wooden circular fitting member is flat.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A wooden club head base material having a required shape and a plurality of wooden club head material plates each having a required area and a thickness are integrally bonded by an adhesive agent to a face surface of the club head base material. And a carbon plate integrally bonded via an adhesive member, and a circular through hole and a circular fitting hole having a required diameter and a required depth at required positions on the face surface of the carbon plate and the wooden club head base material. Drilling and forming
A wooden circular fitting member is integrally fitted into the circular through hole and the circular fitting hole with an adhesive to flatten the face surface of the carbon plate and the tip surface of the wooden circular fitting member. And a method for manufacturing a club head for a park golf.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a golf club head 10 for a park golf according to claim 1 will be described with reference to FIGS. A carbon plate 14 having a required thickness is integrally bonded to the face surface 12a of a club head base material 12 made of persimmon or a maple having a required shape through an adhesive and an adhesive member 16 such as a screw and a bolt. -A circular through hole 14b and a circular fitting hole 12b having a required depth are formed at required positions on the face surface 14a of the bon plate 14 and the face surface 12a of the wooden club head base material 12 by a drill having a required diameter. Drill and form.

The circular through hole 14b and the circular fitting hole 12b
A wooden circular fitting member (abbreviated as a dowel) 18 is penetrated and fitted therein with an adhesive, and the face surface 14a and the tip end surface 18a of the wooden circular fitting member 18 are made flat. In addition, a circular through hole 12c having a required diameter and a depth is formed at a required position of the wooden club head base material 12, and the shaft 20 is fitted into the circular through hole 12c via an adhesive. Be one.

A method for manufacturing the park golf club head 30 according to claims 2 and 3 will be described with reference to FIGS. A plurality of thin persimmons or maples and the like material plates 32 having a required shape and having a thickness between 0.8 mm and 1.49 mm.
a, 32a ... Are integrally bonded with an adhesive, and
The club head base material 30 is formed by pressure bonding.

The face surface 32 of the club head base material 30
A carbon plate 34 having a required thickness is integrally bonded to b through an adhesive and an adhesive member 36 such as a screw and a bolt, and the face surface 34a of the carbon plate 34 and the wooden club head base material. A circular through hole 34b and a circular fitting hole 32c having a required depth are formed by drilling a required diameter on the face surface 32b of 32 with a drill having a required diameter.

The circular through hole 34b and the circular fitting hole 32c
The wooden circular fitting member 38 is pierced and fitted inside with an adhesive, and the face surface 34a and the tip surface 38a of the wooden circular fitting member 38 are made flat.

In the fourth aspect of the present invention, the wooden club head base material 32 having a required shape and a plurality of wooden club head material plates 32a each having a required area and a thickness are integrally bonded with an adhesive. Also club head base material 3
2, the carbon plate 34 is integrally adhered to the circular face surface 32b with an adhesive and an adhesive member 36 such as a screw and a bolt, and the carbon plate 34 and the club head base material 32 are provided at required positions. A circular through hole 34b having a required diameter and a depth and a circular fitting hole 32c are formed, and the circular through hole 3 is formed.
4b and the inside of the circular fitting hole 32c, a wooden circular fitting member 38
Are integrally fitted with an adhesive, and the face surface 34a of the carbon plate 34 and the tip surface 38 of the wooden circular fitting member 38 are joined together.
A golf club head for a park golf, in which a and a are flat.

[0018]

(1) As shown in FIGS. 9 to 12, according to the known method for manufacturing a golf club head for park golf, the face surface of the wooden club head is cut to leave a cylindrical projection, A carbon plate having a through hole penetrating the protrusion is formed on the face surface of the pattern head base material with an adhesive agent.
Since the cylindrical projections are integrally bonded to the head base material and the cylindrical protrusions are screw-bonded in the through holes, the manufacturing process is extremely complicated and inefficient, and when the club head base material is bare wood, its strength is I can't get enough. On the contrary, according to the method for manufacturing a club head for a park golf according to the present invention, a carbon plate is integrally bonded to the face surface of a wooden club head base material through an adhesive and an adhesive member, -A circular fitting hole having a required diameter and depth is formed at a required position on the face surface of the bon plate and the wooden club head base material, and the wooden circular fitting member is integrally fitted in the circular fitting hole with an adhesive. And the car
Since the face surface of the bon plate and the tip end surface of the wooden circular fitting member are made flat, manufacturing is facilitated, the number of steps is reduced, and sufficient strength can be obtained without impregnating the club head with synthetic resin.

(2) The club head for a park golf manufactured by the manufacturing method according to the present invention does not damage the face surface even when a large hard ball made of hard plastic is struck, and is sufficiently durable for long-term use. Have strength.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a club head for a park golf manufactured by a manufacturing method according to the present invention.

FIG. 2 is a partially cutaway perspective view showing a state in which a wooden circular fitting member is fitted into a circular through hole and a circular fitting hole, and a surface obtained by vertically cutting the club head of FIG. 1 along line 11-11. .

FIG. 3 shows a state in which a wooden circular fitting member is penetrated and fitted into a through hole of a carbon plate integrated with the wooden club head base material of FIGS. 1 and 2 and a circular fitting hole of the wooden club head base material. It is a partial front view and a schematic cross-sectional view.

FIG. 4 is a flowchart of the manufacturing method shown in FIGS.

FIG. 5 is a schematic front view of a wooden club head base material in which a plurality of thin material plates are integrally bonded by the method of the present invention according to claims 2 and 3 of the present application.

6 is a partially cutaway perspective view of a club head for a park golf manufactured from the wooden club head base material of FIG.

FIG. 7 is a partially cutaway perspective view showing a state in which the wooden circular fitting member of FIG. 6 is vertically cut along line V11-V11, and a state where the wooden circular fitting member is fitted in the circular through hole and the circular fitting hole. It is a figure.

FIG. 8 is a flowchart of the manufacturing method shown in FIGS.

FIG. 9 is a partially cutaway perspective view of a club head for a park golf manufactured by a known manufacturing method.

FIG. 10 is a partially cutaway cross-sectional perspective view showing a surface of the park golf ball of FIG. 9 taken along the line X-X.

11 is an enlarged cross-sectional view of the club head of FIG.

FIG. 12 is a flowchart of the manufacturing method shown in FIGS.

[Explanation of symbols]

10 ... Park golf club head; 12 ... Club head base material; 12a ... face surface; 12b ... Circular fitting hole; 12c ... Circular through hole; 14 ... Carbon plate; 14a ... Face surface; 14b ... Circular through hole; 16 ... Adhesive member; 16a ... Circular through hole; 18 ... Wooden circular fitting member; 18a ... Tip surface; 20 ... Shaft; 30 ... other park golf club heads; 32 ... club head base material; 32a ... material plate; 32b ... Circular fitting hole; 34 ... Carbon plate; 34a ... Face surface; 34b ... Circular through hole; 34c ... Circular through hole; 36 ... Adhesive member; 36a ... Circular through hole; 38 ... Wooden circular fitting member; 38a ... Tip surface; 40 ... Known park golf club head;

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[Procedure amendment]

[Submission date] May 10, 2002 (2002.5.1)
0)

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004] Further, according to the standards governing equipment the association, club head as can be seen wooden to as as circular wood portion of FIGS. 1-3 is visible on the face hitting surface.

Claims (4)

[Claims] 1. A step of integrally adhering a carbon plate to a face surface of a wooden club head base material having a required shape through an adhesive and an adhesive member; the carbon plate and the wooden club head base material And forming a circular through hole and a circular fitting hole having a required diameter and a depth at a required position on the face surface of the device, respectively; A method for manufacturing a club head for a park golf, comprising the steps of fitting together with an adhesive; and making the face surface of the carbon plate and the tip surface of the wooden circular fitting member flat. 2. A step of integrally bonding a plurality of wooden club head blanks each having a required area and a thickness with an adhesive to form a club head base material; the carbon board and the wooden club head mother. A step of forming and forming a circular through hole having a required diameter and a depth and a circular fitting hole at a required position on the face surface of the material; and a wooden circular fitting member in the circular through hole and the circular fitting hole. And a step of flattening the face surface of the carbon plate and the tip surface of the wooden circular fitting member with an adhesive. . 3. The thickness of each wooden club head material is 0.
The golf club head according to claim 2, wherein the club head has a thickness of 8 mm to 1.49 mm. 4. A wood club head base material having a required shape and a plurality of wood club head material plates each having a required area and a thickness, which are integrally adhered by an adhesive agent to the face surface of the club head base material. A carbon plate is integrally bonded via a member, and a circular through hole and a circular fitting hole having a required diameter and depth are formed at required positions on the face surface of the carbon plate and the wooden club head base material. After drilling and forming, a wooden circular fitting member is integrally fitted in the circular through hole and the circular fitting hole with an adhesive to form the face surface of the carbon plate and the tip of the wooden circular fitting member. A club head for park golf that has a flat surface.