JP2001062012A - Golf putter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve impact absorption at the impact of a ball and to obtain a soft hitting feel by providing the hitting surface part of a metallic head of a golf putter with ribs long toward the rear surface part longitudinally in its central part and forming plural ribs gradually shorter toward both ends of the hitting surface part. SOLUTION: This plural ribs 8 are formed in the longitudinal direction (from the upper part to the bottom part of the head) by grooving or forging toward the rear surface part 3b from the hitting surface part 3a of the putter head 3. These ribs 8 are penetrated from the upper part toward the bottom part of the head and their front parts are exposed to the hitting surface part 3a. On the other hand, the rear parts are formed to a shape not exposed to the rear surface part 3b. Also the plural ribs 8 are preferably formed gradually shorter toward both ends of the hitting surface part 3a and at this time, the maximum length (depth) 8d of the central rib 8m is formed to 40 to 100% of the width D between the hitting surface part 3a and the rear surface part 3b. The width of the respective ribs 8 is preferably formed to 3 to 6 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a golf putter.

[0002]

2. Description of the Related Art United States Patent USP 3,211,45
No. 5 has a durometer hardness of 6 on the hitting surface of the golf putter.
Adhere 5-85 elastic rubber. US Patents / USP
No. 4,679,792 uses a golf putter in which epoxy resin is injected into a honeycomb structure at a portion of the ball striking surface.

[0003] Japanese Patent No. 2584230 discloses a golf club head in which a synthetic resin material is adhered in a plate shape over the entire wall surface on the back side of a hitting portion of a club head body made of a metal material in a hollow shape.

[0004]

The hitting ball is easily subjected to a top spin as desired, and the hitting ball can be freely divided in a straight direction, an upper bowstring, and a lower bowstring. It is difficult for a golf putter to do once a month (only once a month) golfer, it feels hard when hitting a ball, does not leave numbness in both hands, and is easy to hit even amateurs with a wide sweet spot Appearance was requested.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made as a result of intensive studies to solve the above-mentioned problems. That is, the present invention relates to a golf putter which has a center portion of a hitting surface portion of a metal head of the golf putter. Long ribs / power bones are provided in the longitudinal direction toward the back surface, and the ribs / power bones have a structure in which a plurality of ribs / power bones are gradually shortened toward both ends of the hitting surface portion. In a golf putter, a long rib / force bone is provided with a central portion of a hitting surface portion of a metal head of the golf putter directed longitudinally toward a back surface, and a plurality of ribs / force bones are provided toward both end portions of the hitting surface portion. A putter head made of metal having a structure in which the hitter surface is gradually shortened and a hitting surface portion and a groove portion of the putter head are integrally formed of synthetic resin or rubber, and the center portion of the hitting surface portion of the metal head of the golf putter is vertically oriented. Back In the structure in which long ribs / power bones are provided toward the surface portion and the plurality of ribs / power bones are gradually shortened toward both ends of the hitting surface portion, the maximum length of the center rib / power bone is increased from the impact surface portion. A golf putter having a width of 40% to 100% of the width of the back surface.

[0006]

In the golf putter, long ribs and force bones are provided so that the center of the hitting surface of the metal head of the golf putter is directed longitudinally toward the back surface, and a plurality of ribs are provided toward both ends of the hitting surface. Since the golf putter has a structure in which the power bones are gradually shortened, the sweet spot becomes wider, and in the golf putter, a long rib is formed so that the center of the hitting surface of the metal head of the golf putter is directed vertically toward the rear surface. A putter made of metal, a metal putter head having a structure in which a plurality of ribs and a feed bone are gradually shortened toward both ends of the hitting surface, and a hitting surface and a groove of the putter head are made of synthetic resin or rubber. Due to the integral molding, the hitting surface portion of the putter head of the present invention absorbs collision energy when hitting the ball, and the surface of the ball comes in contact with synthetic resin or rubber, so that the ball is not damaged, and in addition, The feeling of numbness of both hands when hitting the ball is reduced, long ribs and force bones are provided with the center part of the hitting surface of the metal head of the golf putter facing the back in the vertical direction, and both ends of the hitting surface The maximum length of the ribs and kinematics at the center is designed to be 40% to 100% of the width of the back surface from the hitting surface in a structure where the ribs and kinematics are gradually shortened toward Even easier to control the ball.

The present invention will be described with reference to the drawings. FIG.
FIG. 2 is a side view of the golf putter 1 of the present invention as viewed from a hitting surface portion. FIG. 2 is an AA enlarged cross-sectional view in the vertical direction of FIG. 1 (from the top to the bottom of the putter head 3). A plurality of ribs (power bones) 8 from the hitting surface portion 3a of the putter head 3 to the back surface portion
Is formed by groove processing or casting in the vertical direction (from the top 3d to the bottom 3c of the putter head 3). In FIG. 2, the rib 8 has a shape penetrating from the upper part 3d to the bottom part 3c of the putter head 3, but in this case, the back part 3b of the putter head 3 is connected. (See FIG. 4) FIG. 3 is another AA enlarged sectional view in the vertical direction (from the top to the bottom of the putter head 3) as in FIG. In FIG. 3, the rib 8 stops before the upper portion 3 d of the putter head 3. FIG. 3 is characterized in that the upper portion of the putter head 3 is connected. FIG. 6 shows another vertical AA of FIG.
Although it is an enlarged sectional view, a rib (power bone) does not penetrate the upper part 3d and the bottom part 3c. As an example, the cross section shows an elliptical shape. FIG. 4 is an AA enlarged cross-sectional view in the lateral direction of FIG. 1 (from the striking surface portion 3a to the back surface portion 3b of the putter head 3). The reason for using the long ribs (power bones) 8 from the center of the hitting surface portion 3a of the putter head to the back surface portion 3b is that the center of the conventional center of gravity of the putter head (the line connecting the upper middle and the bottom middle of the putter head and By shifting the center of the line connecting the center of the hitting surface portion and the center of the back surface portion to the back surface portion and reducing the weight of the putter head 3, the feel (the bend of the hitting portion of the heel / putter) H and toe ( Tow
This is to improve the balance with the golf putter rod tip (T). Also, in order to widen the sweet spot,
The ribs 8 are gradually shortened from the center of FIG. This absorbs the collision energy of the ball best at the center of the striking surface, and gradually reduces the absorption of the collision energy with the ball toward both ends. FIG. 5 is another AA enlarged sectional view of the lateral direction (from the striking surface portion 3a to the back surface portion 3b of the putter head 3) of FIG. The rib 8m at the center 3m of the hitting surface 3a of the putter head 3 has a shape penetrating the back surface. In this case, in order to strengthen the structure of the putter head, the upper part 3d of the putter head 3 is connected. In other words, when the rib 8 penetrates in the vertical direction (from the top to the bottom of the putter head), the back surface 3b of the putter head is connected, and the rib 8 is moved in the horizontal direction (from the striking surface to the back surface). Part)
In this case, the upper part 3d of the putter head is connected. The striking surface in contact with the ball and the bottom in contact with the lawn have surfaces integrally formed of synthetic resin or rubber.

The metal part 4, groove 7 and striking surface part 3a of the putter head are integrally formed of synthetic resin or rubber. However, when the metal surface is exposed, this not only damages the ball surface but also reduces the collision energy with the ball. The absorption is reduced and the effect of expanding the sweet spot is small.

The maximum length (depth) 8d of the central rib (power bone) 8m is preferably 40% to 100% D, where D is the width from the striking surface 3a to the back surface 3b. 4
Below 0% D, the length gradually decreases toward both ends.
The difference disappears and the effect decreases. The width of the rib (power bone) 8 is desirably 3 mm to 6 mm. If it is 3 mm or less, the ball is thin and deforms when hit many times. When the thickness is 6 mm or more, the absorption of impact energy is reduced. Groove 7 width 7w
Is preferably 3 mm to 6 mm. If it is 3 mm or less, the effect of impact energy is small, and if it is 6 mm or more, the putter head becomes too light and the balance of the whole putter is broken.

As the synthetic resin used in the integral molding of the present invention, most synthetic resins can be used, and polyurethane resins, polyethylene resins, polyester resins, polyamide resins, vinyl chloride resins and the like are used. As the rubber, natural rubber or synthetic rubber may be used alone or in combination. The durometer hardness of the rubber is 86
The above is desirable.

[0011]

In the golf putter, long ribs and force bones are provided so that the center of the hitting surface of the metal head of the golf putter is directed longitudinally toward the rear surface, and a plurality of ribs are provided toward both ends of the hitting surface. Since the ribs and power bones are gradually shortened, the center of gravity of the putter head, the heel and the toe are well balanced, and the center of the hitting surface of the metal head of the golf putter is vertically aligned. A metal putter head having a structure in which long ribs / power bones are provided in the direction toward the back surface, and a plurality of ribs / power bones are gradually shortened toward both ends of the hitting surface portion, and a hitting surface portion of the putter head. And since the groove and the groove are integrally formed of synthetic resin or rubber, the impact absorption at the time of hitting the ball is improved, and the body is given a soft feeling. A structure in which long ribs and force bones are provided with the center portion of the hitting surface portion of the metal head of the golf putter vertically oriented toward the back surface, and a plurality of ribs and force bones are gradually shortened toward both end portions of the hitting surface portion. In the above, since the maximum length of the ribs / power bones at the center portion was set to 40% to 100% of the width of the back surface portion from the hitting surface portion, the impact energy around the center portion of the hitting surface portion was absorbed, and the sweet spot became wide. .

[Brief description of the drawings]

FIG. 1 is a side view of the present invention as viewed from the side of a striking surface.

FIG. 2 is an enlarged cross-sectional view taken along the line AA in FIG. 1 in a vertical direction.

FIG. 3 is another AA enlarged sectional view in the vertical direction of FIG. 1;

FIG. 4 is an enlarged cross-sectional view taken along the line AA in FIG. 1;

FIG. 5 is another enlarged cross-sectional view taken along the line AA in FIG. 1;

FIG. 6 is another AA enlarged sectional view in the vertical direction of FIG.

[Brief description of reference numerals]

 REFERENCE SIGNS LIST 1 golf putter 2 shaft 3 putter head 3a putter head hitting surface portion (face portion) 3b putter head back surface portion 3c putter head bottom portion 3d putter head upper portion 3m putter head hitting surface center portion 4 metal portion 6 synthetic resin (including rubber) 7 groove 7d Groove depth (length) 7w Groove width 8 Ribs (power bones) 8m Central ribs (power bones) 8d Rib lengths (depths) 8w Rib widths D Striking surface-back surface distance H heel T toe

Claims (3)

[Claims] In a golf putter, a long rib or force bone is provided so that a center portion of a hitting surface portion of a metal head of the golf putter is directed longitudinally toward a back surface portion, and a plurality of ribs are provided toward both end portions of the hitting surface portion. A golf putter characterized by a structure in which ribs and power bones are gradually shortened. 2. A golf putter, wherein a long rib / force bone is provided so that a center portion of a hitting surface portion of a metal head of the golf putter is directed longitudinally toward a back surface, and a plurality of ribs are provided toward both end portions of the hitting surface portion. 2. The golf putter according to claim 1, wherein a metal putter head having a structure in which ribs and power bones are gradually shortened, and a hitting surface portion and a groove portion of the putter head are integrally formed of synthetic resin or rubber. 3. A long rib / force bone is provided with a center portion of a hitting surface portion of a metal head of a golf putter directed longitudinally toward a rear surface portion, and a plurality of ribs / force bones are formed toward both end portions of the hitting surface portion. 2. The golf putter according to claim 1, wherein the maximum length of the ribs and force bones at the central portion is 40% to 100% of the width from the hitting surface portion to the back surface portion in the gradually shortened structure.