JPH1080507A - Golf putter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a putter head whose swing motion is prevented to make it easier to strike a ball with precision. SOLUTION: A golf putter is balanced for its center of gravity around a shaft 12 by setting the axis AL of the shaft 12 to pass the center C of a square defined by the center of gravity G of a putter head 13, the ball striking point H of a face 14, and the fixed point F of the shaft 12 on the head 13. Thus since the striking point of the face of the putter head is set on the shaft axis, it is made possible to strike a ball with a sense of integrity between the ball and the shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art As shown in FIG. 16, a putter (1) comprises, for example, a shaft (2) and a head (3) attached to a lower end of the shaft (2) via a socket (5). In the putter (1), the center of gravity G of the head (3) and the head (3)
FIG. 1 shows the relationship between the hit point H on the face (4) and the fixed point F on the head (3) at the root of the shaft (2).
7 In FIG. 17, the hit point H is the head
A perpendicular line PL passing through the center of gravity G of (3) and orthogonal to the face (4)
At the intersection of the face (4).

[0003]

The above-mentioned conventional putter (1)
, The axis A of the shaft (2) as shown in FIG.
Since the circumference C centering on L and passing through the center of gravity G of the head (3) does not pass through the fixed point F of the shaft (2) and the hitting point H on the face (4) of the head (3), the head (3) is
The imbalance of the weight balance around (2) is large, the rotational moment around this shaft (2) is large, and the swinging motion around the shaft (2) tends to occur when hitting the ball. In other words, there is a problem that mispatting such as hooking and extrusion of a ball is likely to occur.

[0004]

According to the present invention, as a means for solving the above-mentioned conventional problems, a center of gravity G of a putter head (13) and a hitting point H of a face (14) of the putter head (13) are provided.
And a fixed point F on the putter head (13) at the root end of the shaft (12) is located in the same horizontal plane, and a center C of a square defined by the center of gravity G, the hitting point H, and the fixed point F
Is provided so that the shaft axis AL passes therethrough.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Specific Example FIGS. 1 to 3) In the putter (11) of this specific example, the mounting angle of the shaft (12) mounted on the putter head (13) via the socket (15), that is, the perpendicular HL and the shaft
The angle θ with respect to the axis AL in (12) is 10 ° or more, preferably 1 °.
The head of the shaft (12) is set in the range of 4 to 24 °.
The fixed point F in (13) is set so as to be in the same horizontal plane as the center of gravity G of the head (13), and the hit point H passes through the center of gravity G of the head (13) and is orthogonal to the face (14). Line P
L, so that the hitting point H is set to be in the same horizontal plane with the center of gravity G of the head (13) and the fixed point F of the shaft (12). As shown in FIG. 3, the axis AL of the shaft (12) is aligned with the center of gravity G of the head (13) and the fixed point F of the shaft (12).
It is set so as to pass through the center C of a square defined by the hitting point H of the face (14) of (13). The head (1
3) is that the lower edge is notched obliquely in the front part of the center of gravity G and the upper edge is notched diagonally in the rear part, so that the center of gravity of the front part of the head (13) as shown in FIG. Line GLA is moved upward, the center of gravity GLB at the rear portion of the head (13) is moved downward, and the center of gravity GLA and the center of gravity G are moved.
Make LB approach. Further, the socket (15) is provided with flexibility by making the central portion small in diameter.

In this specific example, the center of gravity G of the head (13), the fixed point F of the shaft (12), and the hitting point H of the face (14) of the head (13) are each a square (rectangular or square) corner. , The center of gravity G, the fixed point F, and the hit point H are on the same circumference CF, and the axis AL of the shaft (12) passes through the center C of the square, that is, the center of the circumference CF. , The balance of the weight balance around the shaft (12) is improved, the rotating moment is reduced, and a sense of unity with the shaft (12) is obtained when hitting the ball, and when hitting the ball Since the swing motion is unlikely to occur, it is easy to hit the ball straight in a predetermined direction. Further, since the center of gravity GLA of the front part of the head (13) and the center of gravity GLB of the rear part are close to each other, the inertial rotational force about the center line CL of the head (13) becomes small, and the shaft (12) The head (13) and the head (13) can be further integrated, and the ball can be accurately hit. More sockets
By making the central part of (15) small and flexible,
When hitting the ball, the socket (15) bends and if the putter
Even if (11) is not stroked straight, the socket (1
The head (13) is swung substantially straight by the bending of (5).

(Second Specific Example FIGS. 4 to 6) In this specific example, the head (23) is composed of a main body (24) and a notch (27) on the front surface of the main body (24).
The body (24) is provided with a hole (24A) which is inclined forward and upward in a lower part of the front side of the center of gravity G of the main body (24). In the upper part of the rear part, a hole (24B) which is inclined upward and forward is provided. The holes may be provided horizontally without being inclined. As shown in FIG. 5, the holes (24A, 24B) bring the center of gravity GLA of the front part of the main body (24) and the center of gravity GLB of the rear part of the main body (24) closer to each other so that the center line CL of the head (23) is brought closer. Shaft (22) and head
(23) so that a sense of unity can be obtained. Shaft (2
2) is attached to the main body (24) of the head (23) through a socket (25) having a small diameter at the center and having flexibility. The fixed point F of the shaft (22) on the head (23) is set to be in the same horizontal plane as the center of gravity G of the head (23), and the hitting point H is set at the center of gravity G of the head (23).
Line P passing through the face plate (26) and orthogonal to the face (26A)
L and the center of gravity G of the head (23) and the fixed point F of the shaft (22) are set to be in the same horizontal plane. Also, as shown in FIG. 5, the heads (23) in which the axes AL of the shafts (22) are respectively in the same horizontal plane.
Hits the ball by passing through the center C of a square defined by the center of gravity G of the shaft, the fixed point F of the shaft (22), and the hitting point H of the face plate (26) of the head (23). In this case, a swing motion is unlikely to occur, so that the ball can be easily hit straight in a predetermined direction. By forming the front notch (27) of the main body (24) deeper than the thickness of the face plate (26) as in this specific example, the ball B
When hitting, the ball B is also held in the head (23), and the ball B can be more easily hit straight. However, in the present invention, the depth of the front notch (27) may be equal to or less than the thickness of the face plate (26).

FIG. 7 shows a modification of the above embodiment. In this modification, a notch (27A) is also provided on the rear surface of the main body (24) of the head (23), and the notch (27A) holds a weight balance plate (26A). In the present modification, the center of gravity G of the head (23) is set substantially at the center of the head (23) by the weight balance plate (26A).

(Third Specific Example FIGS. 8 to 11) In this specific example, the head (33) has an L-shaped main body (34) and the main body (3).
4) a weight portion (37) attached to the back surface, the weight portion (37) being disposed above the center of gravity G of the main body (24), and being bent at the rear side (37C). The lower part (37B) is replaced by the front part (37A).
The center of gravity G of the head (33) is shifted rearward from the center by setting it to be heavier. The shaft (32) has a small diameter at the center and is provided with flexibility through a socket (35).
3), the fixed point F of the shaft (32) at the head (33) is set to be in the same horizontal plane as the center of gravity G of the head (33). H is a line PL passing through the center of gravity G of the head (33) and orthogonal to the face (36).
The hit point H is set to be in the same horizontal plane as the center of gravity G of the head (33) and the fixed point F of the shaft (32). And the head
The center of gravity G of (33), the fixed point F of the shaft (32), and the face (3
6) At the center C of the rectangle regulated by the hit point H,
The swing motion is prevented by passing through the axis AL of the shaft (32), and further, as shown in FIG.
The center of gravity line GLA of the portion on the front side and the back side of the center of gravity G of (34),
The GLB is brought close to each other by the weight parts (37A, 37B) to reduce the inertial rotational force about the center line CL of the head (33), and to reduce the inertia of the shaft (32) and the head (33) when hitting the ball. Give oneness.

(Fourth Specific Example FIGS. 12 to 15) In the putter (41) of this specific example, the head (43) has a substantially half-moon-shaped substrate.
(44), a face plate (46) attached to the front edge cutout portion (45) of the substrate (44), and a weight portion (47) disposed behind the face plate (46). And a synthetic resin (48) buried in the skeleton. The substrate (44) is formed by cutting out a front side of a circle GC centered on the center of gravity G of the head (43) by cutting out a notch (4).
5) is provided, and the rear side is also deleted correspondingly to balance the weight, and the weight portion (47) is defined by the hitting point H of the face plate (46) and the center of gravity G of the head (43). The connecting line PL is an arc centered on a point WC that intersects a circle GC centered on the center of gravity G of the head (43). The line PL is orthogonal to the face (46A) of the face plate (46). The skeleton may be buried or surrounded by wood, wood binder, ceramic, etc. other than the synthetic resin. Also in this specific example, the shaft (42) has a small diameter at the center and has a flexible socket (4).
9) to the head (43) via the shaft
The axis AL of (42) is in the same horizontal plane and is on the same circumference CF, the center of gravity G of the head (43), the fixed point F of the shaft (42), and the face plate (46) of the head (43). By passing through the center C of the quadrangle defined by the hitting point H, i.e., the center of the circumference CF, it is possible to prevent the head from swinging when hitting the ball and easily hit the ball straight in a predetermined direction. doing.

[0011]

According to the present invention, since the ball hitting point of the face of the putter head is located on the axis of the shaft, the shaft and the ball can be hit with a sense of unity.

[Brief description of the drawings]

 1 to 3 show a first specific example.

FIG. 1 is a perspective view

FIG. 2 is an explanatory front view.

FIG. 3 is an explanatory plan view. FIGS. 4 to 6 show a second specific example.

FIG. 4 is a perspective view

FIG. 5 is an explanatory front view.

FIG. 6 is an explanatory plan view.

FIG. 7 is an explanatory plan view showing a modification of the second specific example. FIGS. 8 to 11 show a third specific example.

FIG. 8 is a perspective view.

FIG. 9 is an explanatory plan view.

FIG. 10 is an explanatory back perspective view.

11 is an explanatory back view. FIGS. 12 to 15 show a third specific example.

FIG. 12 is a perspective view.

FIG. 13 is a plan view illustrating a skeleton.

FIG. 14 is an explanatory side view of a skeleton.

FIG. 15 is a perspective view of a skeleton. FIGS. 16 and 17 show a conventional example.

FIG. 16 is a perspective view.

FIG. 17 is an explanatory plan view.

[Explanation of symbols]

 11,21,31,41, putter 12,22,32,42, shaft 13,23,33,43, head 14,26A, 36,46A face AL axis C center of rectangle G center of gravity F shaft fixed point H hitting point

Claims (2)

[Claims] 1. A center of gravity of a putter head, a ball hitting point of a face of the putter head, and a fixed point of a shaft root end in the putter head are located in the same horizontal plane, and the center of gravity, the ball hitting point, and the fixed point are Characterized in that the shaft axis passes through the center of the square defined by 2. The head according to claim 1, wherein the head comprises a substantially half-moon-shaped substrate, a face plate attached to the notch at the front edge of the substrate, and a weight portion disposed on the rear side of the face plate. The golf putter according to claim 1, comprising a synthetic resin to be buried.