JP4054109B2 - Putter head - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a putter head used in a golf game, and more particularly to an improvement of a putter head having a relatively wide head width or sole width such as a pin type or mallet type.
[0002]
[Prior art]
To put the ball correctly in the target direction (target line), it is necessary to hit the ball with the face surface perpendicular to the target line. To this end, the face surface is targeted from the address position. It is said that after putting the putter head back along the target line while keeping a right angle to the line, the ball is hit by swinging the head toward the ball in a pendulum manner. In particular, the above-described swing is preferable for a recent pin type or mallet type putter having a relatively wide sole width as compared with the conventional case.
[0003]
[Problems to be solved by the invention]
However, in recent putter heads having a relatively wide head width or sole width, the head width or sole width is almost the same dimension from the toe portion to the heel portion. If you try to move the putter head backward along the target line after aligning the right angle with the target line, the head appears to tilt to the right due to the optical illusion of the player (when hitting to the right). The face may not be perpendicular to the target line due to the tendency to pull the head inward (the player's body). Accordingly, the head pulled backward cannot swing toward the ball in a pendulum manner along the target line, and it is difficult to accurately hit the ball in the target direction.
[0004]
In view of such circumstances, an object of the present invention is to provide a golf putter head that is easy to swing accurately along a target line and has excellent hit ball directivity.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is configured such that a pair of blocks serving as a toe part and a heel part of the putter head are coupled to the back side and the proximal side of the plate member having a rectangular cross section forming the face surface. In the pin type golf putter head provided with a hosel to which a shaft is mounted on the heel portion side upper part of the plate material of the face surface, the pair of blocks each have a shelf portion coupled to the back side, and the putter head A line segment extending from the upper end of the back side toe part to the upper end of the heel part through the upper end of the thin sole is inclined with respect to the leading edge of the face surface, that is, the head width is from the heel part side. inclined by being formed to be narrower as going to the toe portion side, der ones the inclination angle of the line segment is set in the 2-6 degrees with respect to the leading edge .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings.
[0007]
The embodiment shown in FIG. 1 shows a pin-type putter head 1, and on this plane, a toe portion 2 of the putter head 1 is formed on the back side of the plate member 6 A having a rectangular cross section forming the face surface 6, on the front end side and the hand side. And the pair of blocks 4 and 5 of the upper surface inclination used as the heel part 3 are coupled (refer the side view of FIG. 3). A hosel 7 into which a shaft is inserted is provided on the heel portion 3 side of the plate 6A of the face surface 6. Shelves 9 and 10 are coupled to the back side 8 and the blocks 4 and 5 on the toe 2 side and heel 3 side, respectively. The material of the head 1 is made of copper for all members. Overlooking the putter head 1 according to the present invention, a line segment A extending from the upper end of the toe portion 2 on the back side 8 to the upper end of the thin sole 11 to the upper end of the heel portion 3 is a face surface 6. The leading edge 12 is inclined to the left on the page. This inclination is formed by the head width becoming narrower from the heel 3 side toward the toe 2 side.
[0008]
The inclination angle of the line segment A is 3 degrees to the left with respect to the leading edge 12 of the face surface 6, but this angle is preferably set in the range of 2 to 6 degrees. If it exceeds 6 degrees, it becomes difficult to balance the heel / toe of the moment of inertia. Below 2 degrees, the player's visual image will not change.
[0009]
In order to correct the head width of the toe part 2, especially the width of the shelf part 10, and the imbalance of the moment of inertia around the center of gravity relative to the heel part 3 and the deviation of the head center of gravity, The thickness of the shelf portion 10 of the heel portion 3 is increased compared to the heel portion 3 side, and the volumes of the shelf portions 9 and 10 on the toe portion 2 side and the heel portion 3 side are set to be substantially the same (see the rear view of the putter head in FIG. 2). ).
[0010]
In addition, as shown with a dashed-dotted line in FIG. 1, the center part of the said thin sole 11 is dented in the shape of a bay from the said line segment A to the face surface 6 side, and the moment of inertia of the toe part 2 side and the heel part 3 side is carried out. Can be made relatively large compared to the central portion.
[0011]
【The invention's effect】
As described above, in the golf putter head according to the present invention, when an overhead view of the putter head pulled backward from the address is taken, the line segment connecting the upper end of the toe portion on the back side and the upper end of the heel portion is Since it is inclined with respect to the leading edge of the face surface so that the head width on the toe side becomes narrow, it can give the player (right-handed) the feeling that the putter head is kept at right angles to the target line. Thus, it becomes easier to pull the putter head backward along the target line. That is, a correct back swing can be performed. As a result, it is possible to accurately hit the ball in the target line direction. In addition, since the head width or sole width on the heel side is wide, if the putter head is accidentally removed from the target line and pulled inside, the heel part will feel caught on the ground, so this also causes an erroneous back. Swing is prevented. Further, in the golf putter head according to the present invention, since the weight is biased toward the toe portion and the heel portion as in the conventional product, the inertia moment (secondary moment of cross section) around the center of gravity of the head of both portions becomes large. Therefore, even if the hit ball is out of the sweet area of the face, it is possible to obtain accurate directivity substantially along the target line direction. In addition, according to the first aspect of the present invention, the unbalance of the moment of inertia and the deviation of the center of gravity of the head based on the difference in head width between the toe part side and the heel part side are as follows. This can be corrected by making the thickness thicker or by embedding a weight having a large specific gravity in this portion.
[Brief description of the drawings]
FIG. 1 is a plan view showing a preferred embodiment of the present invention.
FIG. 2 is a rear view.
FIG. 3 is a side view.
[Explanation of symbols]
1 Putter head 2 Toe 3 Heel 6 Face 8 Back side 12 Leading edge A Line segment

Claims (2)

A pair of blocks (4) that form a toe portion (2) and a heel portion (3) of the putter head (1) on the back side and the proximal side of the plate member (6A) having a rectangular cross section forming the face surface (6) ) (5) are coupled, and a pin type golf putter head (1) provided with a hosel (7) on which a shaft is mounted on the heel (3) side upper part of the plate material (6A) of the face surface (6) )
In the pair of blocks (4) and (5), shelf portions (9) and (10) are coupled to the back side (8), respectively.
Overlooking the putter head (1), a line segment extending from the upper end of the toe portion (2) on the back side (8) to the upper end of the heel portion (3) through the upper end of the central portion (11A) of the thin sole (11) (A) is inclined with respect to the leading edge (12) of the face surface (6), that is, the head width is formed so as to become narrower from the heel part (3) side to the toe part (2) side. Tilt,
A putter head characterized in that the inclination angle of the line segment (A) is set to 2 to 6 degrees with respect to the leading edge (12).   The putter (10) according to claim 1, characterized in that the thickness of the shelf (10) is thicker than that of the shelf (9), and the volume of both shelves (9) (10) is set to be the same. head.

Images