US20050049063A1 - Controllable head for golf putter - Google Patents

Abstract

This invention relates to a controllable head to be used on the golf putter, in which the club shaft is divided into two sections, the upper shaft and the lower shaft, and linked together by a fork joint which provides a relative tendency of stability in sway of the upper shaft against the lower shaft so as to render the ball an accurate rolling course to enter the hole on the green.

Description

FIELD OF THE INVENTION
• The invention relates to a controllable head for the golf putter in which the club shaft is divided into two sections, the upper shaft and the lower shaft, and linked together by a fork joint which is easy the player to locate what is the tendency of the propulsion axis the ball will roll on so as to gain more accuracy in the ball rolling course.
BACKGROUND OF THE INVENTION
• In the golf sports, there are two ways employed to hit the ball, the dynamic striking or the static propulsion, of these two; using putter to propel the ball is most important factor to win or lose the game, so the good skill or the poor skill to employ the putter is a judgment most golf players have to face.
• As shown inFIG. 1, it is an appearance of a short putter, the shaft is rather short, and the top end has a gloved handle for the player to hold it with two hands. Thehead12 has a wide face. The player holds thegloved handle12 with two hands and places the putter in front of his breast. When he/she uses his/her body as pivot and employs two shoulders to swing two arms and finally hits the ball with theface12 of the head11 (it is called pendulum effect), the ball rolling on the green is caused. To control the rolling course of the ball depends largely on the center point of the face, the center point of the ball, and the center point of the hole aligned into an axial line. At the case of propelling the putter, it is inevitable to produce the possibility of sway when two shoulders swinging two arms, the alignment of axial line for the ball to roll is distorted, and a latent discouragement occurs in the player's heart.
• As shown inFIG. 2, it is an appearance of a long putter. Theshaft10 is elongated by anupper handle11A and a lower handle11B. The player holds theupper handle11A with one hand close to his breast and the lower handle11B with the other hand rested on the belly. The body and the arm holding theupper handle11A as a pivot are used in order to keep the body from swaying. Then a force is applied to the other hand that holds the lower handle11B to propel the ball rolling on the green. In fact it has reduced the body away to the greatest extent, but there remains latent of inaccurate axial line for the ball to roll, thereby making the player disappointed.
• From the above statement, it is well learned that the accuracy of the ball rolling line is closely related to the stroke axial line the head sways. The conventional technique properly employed for the putter requires long time training, adaptability, and improvement. For the golf beginner, fast learning to use the putter skillfully is an encouragement; which is the main purpose this invention is designed for.
SUMMARY OF THE INVENTION
• The employment of the prior art of putter entails matured skill and harmony of body parts. The inventor, viewing this requirement, has been devoted with a great lot of efforts to implement of this invention through many trials and errors. The two sections of the shafts are linked with a fork joint having the tendency to swing. What is required is to control the stability of the upper shaft, and the fork joint will help the lower shaft to find the desirable propelling axial line, thereby adding more accuracy to the ball-rolling course.
BRIEF DESCRIPTION OF THE DRAWINGS
• FIG. 1 shows an outside view of a conventional short putter.
• FIG. 2 shows an outside view of another conventional long putter.
• FIG. 3 shows a disassembly view of a controllable head of the putter of this invention.
• FIG. 4 shows a disassembly view of a controllable head of the putter of this invention.
• FIG. 5 shows a schematic diagram of a controlled direction at the case of operation of the putter.
DETAILED DESCRIPTION OF THE INVENTION
• The fork point of this invention will be explained in great detail by the aid embodiments as illustrated in the drawings.
• Referring toFIGS. 3, 4, and5, the controllable head of the putter mainly consists of two sections ofshafts20,21 linked by the fork joint.
• Theupper shaft20, same as the conventional part, has acavity201 and agrooved handle22 for player to hold.
• Thelower shaft21, same as the conventional part, has acavity211, agrooved handle23, and ahead24 with a wide face.
• The fork joint comprises a fixedhead30 and amoveable head40. The fixed head has a joiningpost31 on the top which ill enter thecavity201 of theupper shaft20. The fixedhead30 has adownward fork32, alock hole33, and abolt hole34. Themoveable head40 has adownward post41 entering into thecavity211 of thelower shaft21, a linkingtongue42, alock hole43, and abolt hole44.
• As shown inFIG. 4, thetongue42 of themoveable head40 is inserted in thefork32 of thefixed head30 of theupper shaft20 where alock pin50 will pass thelock hole33 and thelock hole43 on thefork30 and thetongue42 and where abolt51 passes thebolt hole34 on thefork30 and thebolt hole34 on thetongue42 to lock them together. This is the way to organize a long putter as shown inFIG. 2. When thebolt51 is removed from thebolt hole44 of themoveable head40, thelock pin50 will serve as a pivot, allowing theupper shaft20 to swing at fixed angle. If thelower shaft21 is swinging, thetongue42 will swing at the limited direction thefork32 of fixedhead30 offers. This will confine the boundary of swing axis. As shown inFIG. 5, when the player holds thegrooved handle22 of theupper shaft20 with one hand in front of the breast, and with the hand on thegrooved handle23 of thelower shaft21, as long as thefork32 of thefixed head30 is facing forward, a swing of thelower shaft21 and thehead24 is limited. Simply speaking, when the player keeps hisupper shaft20 still and the fork facing forward, the ball hit will roll along course with accuracy.
• Many changes and modifications in the above disclosed embodiment of the invention can, of course, be carried out without departing from the scope thereof, such the position of the lock hole and bolt hole of the fixed head and the moveable head. Accordingly, to promote the progress in science and the useful arts, the invention is disclosed and is intended to be limited only by the scope of the appended claims.

Claims (4)

1-2. (Canceled).

3. A controllable head for a golf putter, comprising:

a first shaft section;

a second shaft section;

a golf club head attached to an end of said second shaft section; and

a fork joint disposed between said first shaft section and said second shaft section, and linking said first shaft section to said second shaft section, said fork joint including:

a fixed head attachable to one of said first and second shaft sections, and including a forked portion, and a first lock hole and a first bolt hole formed in the forked portion;

a movable head attachable to another one of said first and second shaft sections, and having a linking tongue that is engaged with the forked portion of said fixed head, and a second lock hole and a second bolt hole formed in the linking tongue, the second lock hole being in alignment with the first lock hole, and the second bolt hole being in alignment with the first bolt hole;

a removable fastening member engagable with the first and second bolt holes, to rigidly fix the movable head to the fixed head; and

a lock pin positioned to extend through the first and second lock holes, and forming a pivot about which the movable head is freely pivotal relative to the fixed head only when the fastening member is removed from the first and second bolt holes;

wherein when the fastening member is engaged with the first and second bolt holes, the fastening member fixes the movable head to the fixed head to prevent pivoting thereof.

4. The controllable head recited inclaim 3, wherein said first shaft section and said second shaft section each have a respective cavity formed therein, and wherein the fixed head and the moveable head each have a respective post that enters into the respective cavities, to join said fork joint to said first and second shaft sections.

5. The controllable head as recited in claim1, wherein when said movable head pivots, said movable head moves in a direction essentially parallel to a face of said golf club head.

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