JPS60188185A - Golf club - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a golf club, and more particularly to a golf club that can increase the speed and force of a swing applied to a ball.

In golf, in order to increase the flight distance of a ball, it is necessary to make an accurate impact at the sweet spot, as well as increase the speed and force of the head against the ball at the time of impact.

However, there are technical and physical limits to increasing speed and impact force in swing motion, and increasing flight distance is not easy.

This invention was made in view of the above points, and provides a golf club that can effectively apply the speed and force at the time of impact to the ball, thereby increasing the flight distance of the ball. The purpose is to provide.

The structure of the present invention is that a tube is incorporated into the hollow shaft of a golf club, and a fluid object enclosed within the tube is moved in accordance with the swing motion, thereby making it easier to swing the club and effectively applying weight at the time of impact. It has been made possible to do so.

Hereinafter, the present invention will be explained based on embodiments shown in the accompanying drawings.

As shown in the figure, a golf club 1 has a hollow shaft 2 with a head 3 at one end and a head 3 at the other end. 11 (is provided with a grip portion 4, a shirt!・2 inner tube 5 is incorporated, and a fluid object 6 is enclosed in this tube 5 so as to be movable).

The tube 5 is inserted into the shaft 2 from the center of gravity X of the golf club 1 to the tip G of the grip part 4, and both ends are closed with plugs 7Q. The spacer is supported by a lightweight filler 8 such as foamed synthetic resin, and is arranged coaxially with the shaft 2 .

The tube 5 is made of lightweight metal or fluororesin, etc., and the fluid object 6 sealed inside it is a second tube.
Examples include mercury 6a as shown in the figure and a group of small steel balls 6b as shown in FIG. Note that a plurality of tubes 5 may be assembled side by side.

The diameter of the tube 5 and the weight of the fluid object 6 are, for example, an inner diameter of 4 m.
Using a tube made of Teflon (trade name) with a wall thickness of 005 mm, a fluid object 6 having a weight of approximately 11 is enclosed.

Furthermore, although the golf club is illustrated as a driver in the illustration, it is not limited to this in any way and may be an iron.

The golf club of the present invention has the above-mentioned configuration, and when the club 1 is gripped and taken from a take-back position to a top-of-the-swing position, the head 3 is at a higher position than the grip part 4, and the fluid object 6 is placed in a position higher than the grip part 4. 4Q approaching position A
go down to (See Figure 5) When the fluid object 6 is at position A, the weight of the fluid object 6 approaches the gripping arm, and the club 1 feels lighter at the top of the swing, and the start of the subsequent downswing becomes lighter, causing the club to move down. You can swing at full speed from the moment you swing.

That is, the swing motion is generally performed in the order of start → initial velocity stage → full speed swing → impact - + follow null, but due to the change in weight position Q due to the movement of the fluid object 6, a full speed swing can be performed from the initial velocity stage. .

Next, when a swing is made, the head 3 is lower than the grip part 4, and the centrifugal force caused by the swing motion of the club 1 causes the fluid object 6 to move at high speed inside the tube 5 toward the head 3, and the center of gravity reaches position B. (See Figure 6) The energy generated by the high-speed movement of the fluid object 6 further amplifies the swing motion of the club 1 itself, increasing the speed and force of the head 3 at the time of impact. This will increase flight distance.

As described above, according to the present invention, a tube is assembled inside the shaft, and a fluid object is movably enclosed within the tube. 1IIIr+ The fluid object moves accordingly, and at the top of the swing, the head side of the club is lightened, allowing the club to swing at full speed from the moment of start, and during the swing, the kinetic energy of the fluid and its weight contribute to the swing motion. By amplifying this, the impact force and speed of the head against the ball become extremely large, and the flight distance of the ball can be dramatically increased.

[Brief explanation of the drawing]

Fig. 1 is a front view of a golf club according to the present invention, Fig. 2 is an enlarged vertical view of the main parts of the same, Fig. 3 is a cross-sectional view taken along the arrow ■-■ in Fig. 2, and Fig. 4 is a The vertical cross-sectional views showing other examples of the fluid object, and each of FIGS. 5 and 6 are explanatory views showing how the club is used. 1.Golf club, 2.Shaft, 3..Head, 4
゛′′Grip 5...tube, 6..., Brahma body,
8...Lightweight filler, Patent applicant: Shiba 1) Yoshinari Dodo, Ema Shingen, Agent Kama 1) Bunji

Claims (5)

[Claims] (1) A golf club in which a tube is installed along the axial direction inside the shaft of the golf club G, and a fluid object is movably enclosed within the tube. (2) The golf club according to claim 1, wherein the tube is installed in a range from the grip tip of the shaft to the center of gravity of the club. (3) The golf club according to claim 1, wherein the fluid object within the tube is mercury. (4) The golf club according to claim 1, wherein the fluid object within the tube is a sphere 7iY=. (5) The golf club according to claim 1, wherein the tube is supported at several places with light weight fillers and is coaxial with the shaft.