JP4156812B2 - Golf club - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a golf shaft that is dependent on a golf shaft for the purpose of adjusting and correcting the performance of the golf club, and to bend the tip of the shaft.
[0002]
[Prior art]
When manufacturing a golf club shaft, if the carbon graphite fiber for a golf shaft is pipe-shaped and a part of it is bent and hardened at an obtuse angle, there is a risk of pulling the metal fitting (mandrel) and breaking the carbon fiber. It was. On the other hand, there was an accessory attached to the outer periphery of the shaft, but there was a problem in the golf rules, and it was difficult and practical.
[0003]
[Problem to be Solved by the Invention]
To provide a golf club shaft having a universal and common golf club landscape with simple and robust bends , and adjusting and correcting the loft angle, face angle , and lie angle of the golf club.
[0004]
[Means for solving the problems]
A round bar-shaped bent bar made of metal or carbon graphite material and the tip part made of carbon graphite material are prepared, and the two are combined to make the secondary bent bar. When the side without the tip part is inserted and joined into the hole at the tip of the golf shaft body, a golf shaft having a predetermined angle is formed at the joint surface between the tip part and the golf shaft body, and this is incorporated into a desired head. Thus, the solution means that the loft angle, face angle and lie angle of the golf club can be adjusted by rotating the shaft and fixing it at a desired position.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is composed of three parts, the golf shaft body (1), wherein the bending bar (2), and a golf head.
[0006]
The golf shaft main body (1) corresponds to the part of the shaft of the present invention, but is a golf shaft itself, and the shaft is completed by incorporating the secondary bending rod (13) into the part (1). It is.
[0007]
In the present invention, the secondary bending rod (13) and the golf shaft main body (1) are assembled, inserted, connected, and fixed (8) securely and securely, and processed so as not to be damaged.
[0008]
The bending rod (2) is a 6mm round bar made of metal or carbon graphite material, and has a round shape. Since the bending process is bulky, it can be easily bent and has a bending angle (7). the angle is about 7 degrees, the become a connecting rod of the tip part (3) and the golf shaft body (1), and to a length of the bar and the other end bent from the end of the distal portion of the shaft (12) (5) Te It is a part to become a form of Muku.
[0009]
The secondary bending rod (13) is an assembly of the tip component (3) and the bending rod (2), and the component (13) is incorporated into the golf shaft body (1).
[0010]
The tip part (3) is a part obtained by separating and cutting (11) the tip of the golf shaft main body (1), and is a part fixed to the bending rod (2).
[0011]
The components described above are assembled and fixed, and a golf club shaft is completed.
【Example】
[0012]
In a conventional golf club assembly, a shaft is incorporated into a hosel (14) of a golf head, and an adhesive is applied to the tip of the shaft and a hole in the hosel (14). is there.
[0013]
At this time, while the shaft is slightly rotated to the left and right, the position is fixed and fixed, but this operation is similarly performed in the golf shaft of the present invention.
[0014]
This operation has a bend angle (7) for the present invention, so that the loft angle, face angle, and lie angle can be adjusted and corrected.
[0015]
The loft angle (19) refers to an angle that affects the flying height of the ball shown in FIG.
[0016]
The face angle (20) indicates the direction of the ball striking surface (25) shown in FIG. 9, and is an angle that affects the right and left of the ball.
[0017]
The lie angle (21) refers to the tangent angle of the golf shaft body (1) with respect to the sole (22) of the golf head shown in FIG.
[0018]
FIG. 9 is an overhead view of the head. When the golf shaft body 1 is slightly rotated to the right (23), the face angle (20) is directed to the face angle left (26).
[0019]
As described above, the shaft having the bending angle (7) allows various angles to be adjusted.
[0020]
There have been various methods for determining changes in performance of golf clubs. Conventionally, the hosel of the head is bent and adjusted with a bar-shaped rod, the hole of the hosel is re-drilled, and the wooden head is ground and corrected. Some of them also attached accessories to the shaft.
[0021]
The adjustment / correction work of the present invention can be performed in the bonding process during the assembly work.
[0022]
A conventional hosel (14) of a normal golf head has a tapered portion (17), which is called radial swing processing.
[0023]
The taper portion (17) is used to apply an adhesive to the gap. As shown in FIG. 5, the joint surface (4) and the bending angle (7) enter the hosel and are not visible in appearance , and this gap serves to prevent shaft breakage.
[0024]
According to the present invention, the joint surface (4) and the bending angle (7) have no discomfort in appearance after the completion of the golf club assembly, and have universality and commonality for golf clubs. It is a shaft for a golf club that satisfies the premise of competing under conditions, is common with the universal in the golf equipment industry, has a form that can withstand use, and conforms to the rules of golf equipment.
【The invention's effect】
The golf club shaft of the present invention is intended to change the performance of the golf club, has the bending angle (7), enables adjustment / correction of the performance of the club, and the joint surface (4) and the bending angle. The degree (7) is a shaft for a golf club that is incorporated in the hosel of the golf head and meets the golf game regulations and is durable for use in the golf equipment industry.
[Brief description of the drawings]
[Fig. 1] Drawing of golf shaft main body [Fig. 2] Tip part (3) and golf shaft main body (1) Cutting / separation drawing [Fig. 3] Drawing of bending rod (2) [Fig. 4] Secondary bending rod ( Figure 13) Figure 5 the head body (16) (enlarged sectional view of an enlarged view of a mounting example [6] hosel (14) of the cross section) and Gore Rufushafuto (1) [7] the head body (16) Side view (showing loft angle (19))
FIG. 8 is a front view of the head body (16) (showing a lie angle (21)).
FIG. 9 is an overhead view of the head body (16) (showing changes in face angles (20), (26), and (27));
[Fig. 10] Insertion relationship diagram of shaft tip and head hosel [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, Golf shaft main body 2, Bending stick 3, Tip part 4, Joining surface 5 , Bending stick other end 6, Part 7, Bending angle 8, Assembly insertion connection fixation 9, Bending stick tip 10, Bending stick other end 11, Cutting Separation 12, tip end 13, secondary bending rod 14, hosel 15, ferrule 16, head body 17, taper 18, length 19 into which shaft enters hosel, loft angle 20, face angle 21, lie angle 22 , Sole 23, right 24, left 25, hitting surface 26, face angle left 27, face angle right

Claims (4)

In a golf club composed of three parts, that is, a secondary bend bar composed of a tip part and a bend bar, a golf shaft body, and a golf head,
The secondary bending rod is configured such that the bending rod is inserted and connected and fixed to the tip part, and the side where the tip part of the secondary bending bar is not inserted is inserted into and joined to the hole at the tip of the golf shaft body, and the tip A joining surface between the component and the golf shaft main body has a predetermined angle, and a tip portion is rotated inside a hole of the hosel of the golf head, so that the tip portion of the golf shaft is at a desired position. A golf club characterized in that adjustment and correction of the lie angle, face angle, and loft angle of the golf club are possible by being fixed inside the hosel.   The golf club according to claim 1, wherein the bending rod has a round bar shape made of a metal or a carbon graphite material.   The golf club according to claim 1, wherein the tip part is made of a carbon graphite material.   By inserting the tip portion of the secondary bending rod into the hosel of a desired golf head, the joint surface between the tip component and the golf shaft main body is in a position where it cannot be visually recognized. The golf club according to claim 1.

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