JPH0838656A - Screwdriver with metal balls - Google Patents

Abstract

(57) [Abstract] [Purpose] A metal ball-loaded driver that utilizes the collision force of a solid metal ball (1) to extend the flight distance of the ball. [Structure] A pipe (2) was provided inside the head, a solid metal ball (1) was inserted, and a tightening plug (4) was attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driver having a solid metal ball inserted inside the head of a golf club.

[0002]

2. Description of the Related Art Conventionally, due to the progress of science and mechanics, the development of functions such as materials and structures has been greatly advanced, and super special metals with high hardness superior to diamond and strong repulsive force and special resins are used. Came to be. However, I think that there will be signs of limitations in the development of materials in the near future. Besides, it is difficult to extend the flight distance other than the golfer's ability.

[0003]

SUMMARY OF THE INVENTION The present invention is directed to the development of a driver which incorporates solid metal balls to increase the flight distance of the balls in order to solve the problems.

[0004]

The structure will be described with reference to the drawings. A pipe (2) is provided between the face portion (5) inside the driver head and the metal ball insertion opening (3). Pipe (2) inside the face (5)
A convex ring groove (6) matching the outer diameter is provided for fixing the inner diameter of the face portion (5) with which the solid metal ball (1) collides to have a wall thickness (7). From the metal ball insertion opening (3), the superhard solid metal ball (1) is inserted into the pipe (2). The solid metal ball (1) and the pipe (2) are screwed into the metal ball insertion port (3) so that they do not pop out, and the tightening plug (4) is stopped. An air hole is provided in the tightening plug (4).

[0005]

The present invention has the above-described structure and the swing is the same as the conventional one. At the moment of the shot, the solid metal ball (1), which was located on the back side (8) by the action of the centrifugal force, had a speed equal to the force at the moment of the shot, and the pipe (2) with good slippage.
Move inside and collide. Due to the high speed movement, the collision power of the solid metal ball (1) increases and it is transmitted to the ball. As a result, the high repulsion effect works and the ball can be flown far away.

[0006]

Embodiments of the present invention will be described below. (A) A light metal or reinforced plastic pipe (2) having good sliding property is provided between the face portion (5) inside the driver head and the metal ball insertion port (3). The pipe (2) retains the strength of the face portion (5) and can be freely removed and adjusted to suit the taste like the solid metal ball (1). (B) In order to insert and fix the pipe (2) inside the face portion (5), a convex ring groove (6) matching the outer diameter is provided. Also, the face portion (5) with which the solid metal ball (1) collides
The inner surface is made thick (7). The convex ring groove (6) and the wall thickness (7) further increase the strength of the face portion (5). (C) From the metal ball insertion port (3) on the back side (8) of the head, a superhard solid metal ball (1) that fits the inner diameter of the pipe (2) is inserted. (D) The metal ball insertion opening (3) and the tightening plug (4) are of a screw type, and the solid metal ball (1) and the pipe (2) are screwed in until they hit the pipe (2) so as not to pop out.

[0007]

EFFECTS OF THE INVENTION The present invention has the above-described structure. When using this, 1), the pipe (2) is arranged so that the solid metal ball (1) can be positioned on the face side at the address before entering the swing. )
Since it is provided with an inclination angle, it is preferable to maintain that state. In that case, it is easy to check, and when the head is swung lightly at the time of address, a "peen, peen" small metallic noise is generated. The position can be confirmed by the shaking direction and sound. 2) After checking the position of the solid metal ball (1), a backswing is started. The action of the centrifugal force acts and the solid metal ball (1) remains stationary and the direction of the centrifugal force changes at the moment of swinging down, so that the position of the solid metal ball (1) also moves to the back side (8). At the moment of catching the ball, the solid metal ball (1) greatly utilizes the space of the pipe (2) at the same speed as the momentary force, increases the momentum at high speed and collides with the inner surface of the face (5), maximizing its power to the ball. Tell. In addition, the high-speed movement creates a sense of stability in the head and maintains balance to facilitate swinging. With such an effect, the directionality of the ball can be further enhanced and the flight distance can be greatly extended in a straight line. By freely producing the sound by one's own will, the rhythm important for the swing can be grasped, the mental aspect can be controlled, and the concentration can be enhanced. It is a unique and fun driver that brings out the effectiveness of human psychological effects. Although the present invention has been described with respect to a driver, it can be used for a brushy, spoon, buffy, creek.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a sectional view of the present invention.

[Explanation of symbols]

 1, solid metal ball 2, pipe 3, metal ball insertion port 4, tightening plug 5, face 6, convex ring groove 7, wall thickness 8, back side 9, sole portion 10, stop screw 11, air hole

Claims (1)

[Claims] 1. A pipe (2) is provided inside the head and a metal ball (1) is inserted. (B) Provide a metal ball insertion port (3) on the back side (8) and attach a tightening plug (4). A screwdriver with a metal ball configured as described above.