JP2928144B2 - Golf club shaft mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club shaft mounting structure, and more particularly to a mounting structure capable of securely fixing a shaft to a head body.

[0002]

2. Description of the Related Art FIG.
As shown in the figure, the head body 1 and the hosel 2 are integrally formed of a metal material, and the shaft 4 is extended to the sole 3 of the head body 1.
Is known. The hosel 2 shortens the outer protruding portion or eliminates this portion, and
To reduce the center of gravity. The shaft 4 is fixed to the hosel 2 with an adhesive, and the tip of the shaft 4 is fixed to a hole formed in the sole 3. The side wall on the heel side of the head main body 1 forms a part of the inner cylinder 2A.

[0003]

When a ball is hit with a head, a very large impact force is applied to the tip of the shaft. In addition, a large rotational force is applied to the head by the collision with the ball, particularly at the time of off-center hit, and the rotational force of the head is transmitted to the shaft. When the head tries to rotate, the shaft gripped by the golfer resists the rotation of the head due to the gripping force, so that the hosel and the shaft relatively rotate. As a result, the adhesive fixing the shaft to the hosel may be peeled off.

Therefore, the present invention shortens the hosel,
Alternatively, even if the center of gravity is lowered and the center of the face is eliminated by eliminating the externally protruding portion, the adhesive separation between the shaft and the hosel can be prevented, and the shaft mounting structure of the golf club that prevents the shaft from coming out of the hosel. The purpose is to provide.

[0005]

In order to achieve the above-mentioned object, the present invention provides a hosel integrally formed with a head body.
A plurality of cuts of a predetermined length are formed from the distal end of the shaft to the proximal end to be inserted into, and a tubular body inserted into the hollow portion of the distal end of the shaft is protruded inside the sole of the head main body. periphery to form a plurality of blade portions which are inserted into notches of the shaft, the the shaft hollow cylindrical body, FIG Rutotomoni fixed each inserted in the shaft distal end to cut the shaft is the blade portion, the shaft hosel Secure with adhesive
It was done.

[0006]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

In the embodiment of the present invention shown in FIG.
A cylindrical body 6 to be inserted into the hollow portion 4A at the tip of
A plurality of blades 7 to be inserted into the cuts 5 of the shaft 4 are formed on the outer periphery of the cylindrical body 6. The tubular body 6 is inserted into the hollow portion 4A of the shaft 4, and the blade 7 is inserted into the cut 5 of the shaft 4, thereby fixing the distal end side of the shaft 4. As means for projecting the cylindrical body 6 inside the sole 3,
The screw 8 is screwed into the tubular body 6.

FIG. 2 shows the shaft 4, the cylindrical body 6, and the screw 8. The female body 9 is formed on the inner peripheral surface of the cylindrical body 6. The screw 8 is screwed. In this embodiment, the cuts 5 are formed at four places, and four blades 7 are also formed. When the screw 8 is used as a means for fixing the tubular body 6 to the sole 3, the sole 3 has a hole into which the screw 8 is inserted.

[0009] In the embodiment shown in FIG.
An example is shown in which the cylindrical body 6 is welded to the sole 3 or formed integrally with the sole 3 without fixing them.

In the embodiment described above, as shown in FIG.
The hosel 2 integrally formed with the head body 1 is shortened,
Alternatively, the mounting structure of the shaft in the wood club in which the outer protruding portion is eliminated and the inner cylinder 2A is made longer has been described.
The shaft 4 can be similarly attached to the head body 1 in the iron club.

[0011]

As described above, according to the present invention, a plurality of cuts having a predetermined length are formed from the distal end to the proximal end of the shaft inserted into the hosel integrally formed with the head body. A cylindrical body inserted into the hollow portion at the front end of the shaft is protruded inside the sole of the head body, and a plurality of blades inserted into the notch of the shaft around the outer periphery of the cylindrical body. forming a, secured to the hollow portion of the cylindrical body is a shaft, fixed to FIG Rutotomoni the distal end side of each insertion is in shaft notch blade portion of the shaft, the shaft with an adhesive hosel
This prevents the shaft from rotating with respect to the hosel. Therefore, there is no fear of peeling of the adhesive, and the shaft can be prevented from coming off. Further, since the relative rotation between the shaft and the hosel is prevented, the length of the shaft mounting portion can be shortened.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a preferred embodiment of the present invention.

FIG. 2 is a perspective view showing a shaft, a tubular body, and screws.

FIG. 3 is a sectional view showing another embodiment.

FIG. 4 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head main body 2 Hosel 3 Sole 4 Shaft 4A Hollow part 5 Cut 6 Cylindrical body 7 Blade part

Claims (2)

(57) [Claims] A hoe integrally formed with a head body (1).
A plurality of cuts (5) having a predetermined length are formed from the distal end to the proximal end of the shaft (4) inserted into the zel (2), and the shaft is formed inside the sole (3) of the head body (1).
(4) A cylindrical body inserted into the hollow portion (4A ) at the tip
(6) projecting a notch of the shaft (4) on the outer periphery of the tubular body (6)
A plurality of blades (7) to be inserted into (5) are formed, the tubular body (6) is cut into the hollow portion (4A) of the shaft (4) , and the blade (7) is cut into the shaft (4) ( Figure tip side fixed 5) to be inserted respectively shaft (4) Rutotomo
And a shaft (4) fixed to the hosel (2) with an adhesive . 2. A head body (1) of a hosel (2).
The inside in which the part protruding outside extends into the head body (1)
A tube characterized by being formed shorter than the tube (2A).
The golf club shaft mounting structure according to claim 1.