JP5052840B2 - Golf putter head - Google Patents

Description

  The present invention relates to a golf putter head, and more particularly to a putter head capable of arbitrarily changing the position of the center of gravity of the head according to the user's preference.

Conventionally, many inventions that can change the position of the center of gravity of a golf putter head have been made.
For example, in Japanese Patent Laid-Open No. 63-68186, “a rod-like body extending rearward at a right angle to the face plate is provided at the back of the center of the thin plate-like face plate extending in the toe and heel directions. The head of the putter club which is provided with a rod extending to the rod and a weight body is mounted on the rod is disclosed.
According to the present invention, the weight distribution of the putter head can be changed by moving the weight body on the rod. However, the direction in which the weight can be changed is limited to the direction parallel to the face plate.

Japanese Patent No. 2760723 also states that “the main body portion has an elongated face surface, a recess is formed on the back side of the face surface, and a groove or protrusion is formed on the inner surface of the recess along the substantially longitudinal direction of the face surface. A head having a strip rail, and a weight changing weight that is fixed at a desired position of the rail of the head, can move along the rail when the fixing operation is performed, and can be re-fixed to a different position by the fixing operation. A putter head is disclosed.
Also in the putter head of the present invention, what can be changed by moving the weight is only the weight balance of the head in the toe-heel direction.

JP-A 63-68186 Japanese Patent No. 2760723

  Therefore, the present invention distributes the weight distribution of the putter head not only in a linear change in the head toe / heel direction but also in a direction perpendicular to the head toe / heel direction. In other words, the present invention intends to provide a putter head that can change the weight distribution. That is, an object is to provide a putter head capable of changing not only the moment of inertia in the toe-heel direction but also the depth of the center of gravity.

The invention of claim 1 is a putter head comprising a head main body portion and a plurality of center-of-gravity position changing members having a weight portion at one end and legs extending from the weight portion. legs of the center of gravity position changing member, said weight body portion at a plurality of positions including at least a stationary position projecting outwardly of the head main body portion in plan view, is detachably secured to the head main body portion, the gravity center position The leg portion of the changing member has an L-shape including a first leg portion extending from the weight body portion and a second leg portion extending perpendicularly from the first leg portion, and the first leg portion is And fixed in either a direction parallel to the face surface provided in the head main body portion or a direction perpendicular to the face surface, and the first leg portion is perpendicular to the face surface. The weight body when fixed in any direction. Protrudes outwardly of the head main body portion, a golf putter head, characterized in that.
If a plurality of center-of-gravity position changing members are used, the weight distribution can be further distributed by combining the position and angle of attachment of each center-of-gravity position changing member to the head main body by various combinations. Various changes can be made two-dimensionally in the direction perpendicular to the direction.

The weight distribution in the toe / heel direction of the head main body can be changed depending on the position of the leg main body position changing member attached to the head main body. In addition, if the legs of the center-of-gravity position changing member are attached so as to have an angle (arbitrary range of 0 to 90 degrees) instead of the direction perpendicular to the head body, the direction perpendicular to the head body The weight distribution to can also be changed.
Therefore, by combining these, in other words, by adjusting the mounting position and mounting angle of the leg part of the center of gravity position changing member to the head body part, the weight distribution can be adjusted in the direction of the head body part in the toe / heel direction and perpendicular direction. It is possible to adjust two-dimensionally.

According to a second aspect of the present invention, in the golf putter head according to the first aspect , in the case where the number of the center-of-gravity position changing members is two, the L-shaped leg portions of the center-of-gravity position changing member are respectively bent in the left-right symmetric direction. is there.
In this case, the center-of-gravity position changing member can be arranged symmetrically in the toe / heel direction of the head main body, so that when the putter is held, a sense of stability is obtained and the putter is easy to put on. Is. In addition, the center of gravity of the head main body can be arranged at the approximate center in the toe-heel direction.

The invention of claim 3, the step portion provided on the side opposite to the face surface of the head body portion, detachable and claims 1, wherein the legs of the gravity center position changing member to the step portion of the head body portion The golf putter head according to any one of Items 2 .
Providing a stepped portion on the opposite side of the face surface of the head main body portion facilitates positioning when the leg portion of the center of gravity position changing member is attached to and detached from the head main body portion.

According to a fourth aspect of the present invention, the head main body is provided with one or a plurality of screw holes, the leg of the center of gravity position changing member is also provided with a screw hole at a position corresponding to the screw hole of the head main body, The golf putter head according to any one of claims 1 to 3 , wherein the center-of-gravity position changing member is detachably attached to the head main body with a screw.
If screw holes are provided in the head main body portion and the leg portion of the gravity center position changing member, the gravity center position changing member can be securely attached to the head main body portion.
Further, if the screw holes are provided at equal intervals, the center-of-gravity position changing member can be shifted and attached to and removed from the head main body, and the weight distribution can be easily adjusted.

As described above, according to the present invention, the weight distribution of the putter head can be adjusted two-dimensionally in the toe-heel direction and the vertical direction of the head main body, so that the needs of the user than before are required. The weight distribution can be adjusted according to the conditions.
Furthermore, the weight can be adjusted by a very simple method of changing the attachment method of the leg portion of the center-of-gravity position changing member to the head main body.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a perspective view showing an embodiment of a golf putter head according to the present invention, and FIG. 2 is a plan view thereof. 3 is a perspective view showing only the head main body portion of the golf putter head of FIG. 1, and FIG. 4 is a perspective view showing only the same gravity center position changing member.

A golf putter head 1 shown in FIG. 1 includes a head main body 2 and a gravity center position changing member 3.
As shown in FIG. 3, the head body 2 has a face insertion surface 22 and a shaft insertion hole 22 into which the shaft is inserted. Furthermore, in this embodiment, a step portion 23 is provided on the opposite side (back face portion) to the face surface 21. Further, the back face part is provided with an extension part 24 extending in a direction perpendicular to the face surface. The step portion 23 and the extension portion 24 are provided with a plurality of screw holes 25.

  As shown in FIG. 4, the center-of-gravity position changing member 3 includes a weight body portion 31 and leg portions 32 extending from the weight body portion 31. The leg portion 32 has an L shape, and the auxiliary rod 34 is also coupled to ensure the coupling between the weight body portion 31 and the leg portion 32. Further, the leg portion 32 is provided with a plurality of screw holes 35.

The screw hole 35 of the center-of-gravity position changing member 3 and the screw hole 25 of the head main body 2 are provided at the same interval, and the leg 32 of the center of gravity changing member 3 is overlapped with the stepped portion 23 of the head main body 2. Both screw holes are made to coincide.
Specifically, the screw hole of the center-of-gravity position changing member 3, between 351 and 352, between 352 and 353, between 251 and 252 in the stepped portion 23 of the head main body 2, and between 252 and 253 That is, the distances between H.253 and H.254 are the same. (Note that there are other distances that are the same, but this is self-evident from the following description and will be omitted.)
On the other side, it is possible to design such that the screw holes are not intentionally opened or the intervals between the screw holes are intentionally different so that combinations that violate the rules cannot be made.

In the embodiment of FIG. 1, two centroid position changing members 3, a centroid position changing member 3 a and a centroid position changing member 3 b are used. The difference between the center-of-gravity position changing member 3a and the center-of-gravity position changing member 3b is that the legs 32a and 32b bent in an L shape are bent in the left-right symmetrical direction.
In this embodiment, the screws are fixed by inserting screws into the screw holes 25 of the stepped portion 23 of the head main body 2 from the screw holes 35 of the gravity center position changing members 3a and 3b.

1 and FIG. 2, the weight portions 31 a and 31 b of the center-of-gravity position changing members 3 a and 3 b are at the center position when viewed from the toe-heel direction A of the head main body portion 2, and An example is shown in which it is arranged at a position farthest from the direction B perpendicular to the toe-heel direction. With such an arrangement, the moment of inertia of the putter head in the toe-heel direction increases, and the depth of the center of gravity increases.
This is for stroke type golfers, and it is possible to dare to remove the sweet spot.

5 and 6 are plan views showing other examples of combinations of the center-of-gravity position changing members 3a and 3b.
In FIG. 5, the weight parts 31 a and 31 b of the center-of-gravity position changing members 3 a and 3 b are closest to the toe and heel when viewed from the toe and heel direction A of the head main body 2 and the toe and heel of the head main body 2. An example is shown in which it is arranged at a position closest to the head main body 2 when viewed from a direction B perpendicular to the direction. With this arrangement, the moment of inertia of the putter head in the toe-heel direction is smaller than in the embodiment of FIGS. 1 and 2, and the center of gravity depth is shallow.
This is an orthodox center of gravity setting and a putter for everyone.

In FIG. 6, the weight parts 31 a and 31 b of the center-of-gravity position changing members 3 a and 3 b are closest to the toe and heel when viewed from the toe and heel direction A of the head main body 2 and the toe and heel of the head main body 2. An example is shown in which it is arranged at a position farthest from the head main body 2 when viewed from a direction B perpendicular to the direction. With this arrangement, the moment of inertia of the putter head in the toe-heel direction is larger than that of the embodiment of FIGS. 1 and 2, and the center of gravity depth is deepened.
This is suitable for golfers who are not good at putters, especially short putts.
As described above, according to the present invention, the weight distribution can be adjusted two-dimensionally in the toe-heel direction A and the vertical direction B of the head main body 2. The weight distribution can be adjusted according to the conditions.

Whether or not the extension 24 of the head main body 2 is provided is arbitrary.
In the case where the center of gravity position changing members 3a and 3b are arranged as shown in FIG. 6, the presence of the extension portion 24 serves as a mark indicating the putting direction, so that the putter is easy to put.
Further, when the gravity center position changing members 3a and 3b as shown in FIGS. 1, 2 and 5 are arranged, the L-shaped leg portions 32a and 32b are fixed to the stepped portion of the head main body portion 2. 23, it can be performed not only by the extension portion 24, but also has a feature that the center-of-gravity position changing members 3a and 3b are securely fixed to the head main body portion 2.

1, 2, 5, and 6, the center-of-gravity position changing members 3 a and 3 b can be arranged symmetrically with respect to the center position of the head main body 2 in the toe-heel direction A. When the head 1 is held, a sense of stability appears visually. Therefore, it also has a feature that it is easy to put a pattern.
In addition, the center of gravity of the head main body can be arranged at the approximate center in the toe-heel direction.
However, since the present invention is not limited to the above-described embodiment, it is possible to use only one center-of-gravity position changing member 3 and change the attachment method in various ways.

As shown in FIG. 7, it is also possible to use a gravity center position changing member 3 in which the leg portions 32 are simply straight (not L-shaped).
When attaching the center-of-gravity position changing member 3 of this shape to the head main body 2 via the screw holes 35 and screws, the leg 35 is attached to the head main body 2 at an arbitrary angle from 0 to 90 degrees. Can be attached.
Therefore, by adjusting the mounting position and the mounting angle, the weight distribution can be adjusted two-dimensionally in the toe-heel direction A and the vertical direction B of the head main body 2.
If a plurality of the center-of-gravity position changing members 3 are used, more complicated weight distribution adjustment is possible.

Furthermore, it is possible to use a gravity center position changing member 3 as shown in FIG. In the center-of-gravity position changing member 3 in FIG. 8, unlike the embodiment in FIG. 4, the screw holes 35 are provided in a direction parallel to the horizontal plane, not in a direction perpendicular to the horizontal plane.
Accordingly, screw holes 25 corresponding to the screw holes 35 of the leg portions 32 are formed on the back face surface perpendicular to the horizontal surface of the putter head main body 2 and the surface perpendicular to the horizontal surface of the stepped portion 23 (not shown). By providing, the center of gravity position changing member 3 can be attached and detached freely.

The center of gravity position changing member 3 can be attached to the head main body 2 using screws, rivets, double-sided tape, or an adhesive.
In addition, when the stepped portion 23 is provided in the head main body 2, positioning becomes easier when the leg portion 32 of the gravity center position changing member 3 is attached / detached. However, the present invention can be implemented without providing the stepped portion 23. Of course.

The weight body portion 31 of the center-of-gravity position changing member 3 may be the same material as the leg portion 32, but more preferably, a material having a specific gravity greater than that of the leg portion 32 is used.
When making both together, it is better to use an iron-based material such as stainless steel, chromium molybdenum steel, S25C, etc. Also, the weight part 31 is made of a material having a large specific gravity such as tungsten, brass or lead. This may be configured by fitting, welding, bonding or the like by a known method.

  Further, if the head body 2 is made of an aluminum alloy or a magnesium alloy having a specific gravity smaller than that of the gravity center position changing member 3, the variation of the gravity center position due to the change of the gravity center position changing member 3 is further increased. That is, there is an effect that the change in the moment of inertia in the toe-heel direction and the change in the depth of the center of gravity can be greatly changed by slightly moving the center-of-gravity position changing member 3.

It is a perspective view of one example of the putter head for golf of the present invention. It is a top view of FIG. It is a perspective view which shows only the head main-body part in the putter head for golf of FIG. It is a perspective view which shows only the gravity center position change member in the golf putter head of FIG. It is a top view which shows another Example. It is a top view which shows another Example. It is a perspective view which shows another gravity center position change member. It is a perspective view which shows another gravity center position change member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Golf putter head 2 Head main-body part 21 Face surface 22 Shaft insertion hole 23 Step part 24 Extension part 25 Screw hole 251,252,253,254 Screw hole 3,3a, 3b Center-of-gravity position change member 31,31a, 31b Weight body Part 32, 32a, 32b Leg 34 Auxiliary rod 35 Screw hole 351, 352, 353 Screw hole

Claims (4)

The head body,
A putter head having a weight part at one end and a plurality of center-of-gravity position changing members having legs extending from the weight part;
The leg portion of the center-of-gravity position changing member is detachably fixed to the head main body at a plurality of positions including at least a fixing position where the weight body protrudes outside the head main body in plan view .
The leg portion of the center-of-gravity position changing member has an L shape composed of a first leg portion extending from the weight body portion and a second leg portion extending perpendicularly from the first leg portion,
The first leg is fixed in either a direction parallel to a face surface provided on the head main body or a direction perpendicular to the face surface;
When the first leg is fixed in a direction perpendicular to the face surface, the weight body projects out of the head body.
A golf putter head characterized by the above. Wherein when the gravity center position changing member is two, golf putter head of claim 1, wherein the L-shaped legs of the gravity center position changing member is bent to each symmetrical directions. The step part is provided in the opposite side to the face surface of the said head main-body part, The leg part of the said gravity center position change member was made to attach or detach to the step part of the said head main-body part. The putter head for golf as described in 2. The head main body portion is provided with one or a plurality of screw holes, the center of gravity position changing member is provided with screw holes at positions corresponding to the screw holes of the head main body portion, and the gravity center position changing member is The golf putter head according to any one of claims 1 to 3 , wherein the head main body is detachable with screws.

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