Golf club with which gravity rule is realized

• US 20050026711A1
• Filed: 08/27/2004
• Published: 02/03/2005
• Est. Priority Date: 10/31/2002
• Status: Active Grant

• Current Assignee: Kunihiro Tamura
• Original Assignee: Kunihiro Tamura
• Inventors: Tamura, Kunihiro
• Granted Patent: US 7,144,329 B2
• Time in Patent Office: Days
• US Class Current: 473/223
• CPC Class Codes: A63B 60/24 Weighted handles
• CPC Class Codes: A63B 69/3632 Clubs or attachments on clubs, e.g. for measuring, aligning A63B69/3614 takes precedence; clubs for swinging exercises in general A63B15/00
• CPC Class Codes: A63B 69/3661 Mats for golf practice, e.g. mats having a simulated turf, a practice tee or a green area

Abstract

In order to stabilize golf swing motion of a player, downswing motion that is the most important but difficult part in golf swing is streamlined. A moving object is set in a golf club. When the club is in a vertical position in a flow of its movement from the top of the swing to downswing, the moving object starts to fall by the player'"'"'s kinetic energy and gravity. The player swings down the club while confirming the fall of the moving object and matching his/her motion to the vector of the object in a direction of the fall. This enables the player to perform an efficient downswing were the club is swung in a shortcut path. A more realistic club swing can be made when it is performed on a address mat where a stance and a distance of a ball are indicated. This can be achieved by a removable handle end portion.

Claims

1. A golf club enabling a down swing which allows the golfer to actually feel the gravity by embedding a gravity-sensing bar inside the shaft of a golf club so that it can move, fixing a stopper near the head, and allowing the golfer to become conscious of the feeling that the bar is falling vertically by gravity when the shaft is standing in a series of actions from the back swing to the down swing.

2. The golf club according to claim 1, wherein the bar is provided with a sensor.

6. A golf club according to claim 1, wherein the handle end section is detachable, opening and closing the shaft end opening.

3. A golf club characterized by the fact that a moving object and a stopper are inserted into the shaft of a golf club, one of them comprising a magnet, the other comprising a ferromagnetic body, with a stopper being fixed near the head, and in which the moving object is in contact with the stopper section from the back swing to the top of swing, in which it leaves the stopper section at the start of the down swing by the golfer'"'"'s kinetic energy and the force of gravity, and falls to the handle side.

4. A golf club characterized by the fact that the golf club is constructed so that a moving object having magnetism and a stopper having magnetism fixed near the head are placed with the same poles facing each other inside the shaft, the fall of the moving object by kinetic energy and gravity at the down swing can be further promoted by magnetic repulsion between the same poles.

5. A golf club characterized by the fact that a moving object is freely and projectably attached at the handle end section of a golf club, and the moving object is projected from the handle end by the golfer'"'"'s kinetic energy and gravity at the start of a down swing.