WO2019097722A1 - Golf club head and golf club - Google Patents

Abstract

This golf club head is used for a putter, and has: a head body provided with a face surface part that constitutes a face surface; a hosel part provided with an attachment section to which a golf club shaft is attached, a supporting section provided to the head body, and a connection section that connects the supporting section and the attachment section; and an offset adjustment part that changes an offset distance between the face surface and the shaft axis of the golf club shaft. The offset adjustment part has: an extension/contraction mechanism that is disposed at the connection section of the hosel part and that changes the offset distance by extension and contraction; and a fixing section that fixes the offset distance at a predetermined distance.

Description

Golf club heads and golf clubs

The present invention relates to a golf club head and a golf club used for a putter for hitting a golf ball on a green, and more particularly to a golf club head and a golf club in which adjustment of the offset distance is easy.

In golf, putters are used on the green as a golf club for putting a golf ball in a cup.
The performance required of the putter is required to have high straightness of the golf ball when hitting the golf ball. Thereby, the golfer who is the user can roll the golf ball so as to draw the trajectory assumed by him.
For example, Patent Document 1 describes a removable weight that is preferably used to adjust the moment of inertia of a golf club head.
In addition, the body size, muscle strength, and the like differ for each golfer, and the lie angle and loft angle required for each golfer differ. For example, Patent Document 2 describes a golf putter having a variable lie angle. Patent Document 3 describes a putter capable of setting a desired loft.

As described above, conventionally, with regard to putter, one of lie angle, loft angle and moment of inertia can be adjusted.
Also, according to Patent Document 4, the offset distance of the shaft relative to the face is adjusted by changing the relative position of the hosel adapter and the at least one bushing along an axis substantially perpendicular to the plane parallel to the plane of the flat face. Adjustable putters have been proposed.

JP, 2009-247911, A JP, 2009-136638, A Japanese Patent Application Publication No. 2003-210629 JP, 2016-512761, A

As described above, Patent Document 4 proposes that the offset distance can be adjusted by changing the relative position of one bushing. The adjustment method of the offset distance of patent document 4 needs to change the position of a bushing, and adjustment of an offset distance is complicated.

An object of the present invention is to provide a golf club head and a golf club in which the problems based on the prior art described above are eliminated and the offset distance can be easily adjusted.

In order to achieve the above object, the present invention is a golf club head for use in a putter, comprising: a head body provided with a face surface portion constituting a face surface; an attachment portion to which a golf club shaft is attached; A hosel portion including a support portion provided in the support portion, a connection portion connecting the support portion and the attachment portion, and an offset adjustment portion for changing an offset distance between the face surface and the shaft axis of the golf club shaft; The present invention provides a golf club head characterized by having a telescopic mechanism provided at a connecting portion of a hosel portion and changing an offset distance by telescopic movement, and a fixing portion fixing the offset distance at a predetermined distance. It is.

In the offset adjusting unit, the connecting portion extends from the face surface in the direction of the shaft axis of the golf club shaft, and the extension mechanism preferably extends and retracts the connecting portion.
It is preferable to have a lie angle adjustment unit that changes the lie angle.
The head main body includes an overhanging portion projecting in a semi-cylindrical manner on the upper surface, and flat portions provided on both sides of the overhanging portion, and a hosel portion is provided on the overhanging portion, and each flat portion is provided. Preferably, the adjustment weight is provided so as to be attachable.
It is preferable to have an angle adjustment unit that changes the loft angle of the face surface.

The back face opposite to the face surface of the head main body is provided with a plate-like portion which constitutes a part of the sole, and the plate-like portion is an overhang in an area corresponding to the overhang and an area corresponding to the flat portion. It is preferable that the plate thickness of the area | region corresponding to a part is thin.
The hosel portion is provided on the back side of the face surface of the overhanging portion, has a rotor rotatable at a predetermined angle, and a hosel fixed to the rotor for fixing a golf club shaft, and the rotor is It is preferable to fix in the state of an angle and to set it as a specific lie angle.

The present invention provides a golf club characterized by having the above-mentioned golf club head of the present invention.

According to the present invention, it is possible to obtain a golf club head and a golf club in which adjustment of the offset distance is easy.

It is a schematic diagram which shows the golf club of embodiment of this invention. It is a perspective view showing the 1st example of a golf club head of a golf club of an embodiment of the present invention. It is a side view showing the 1st example of a golf club head of a golf club of an embodiment of the present invention. It is a typical perspective view showing the 1st example of a golf club head of a golf club of an embodiment of the present invention. It is a typical perspective view showing the hosel part of the 1st example of the golf club head of the golf club of embodiment of this invention. It is a typical perspective view showing the 1st example of the offset adjustment part of the golf club head of the golf club of embodiment of this invention. (A) is a schematic diagram for demonstrating operation | movement of the 1st example of the offset adjustment part of the golf club head of the golf club of embodiment of this invention, (b) is a golf club of embodiment of this invention It is a schematic diagram for demonstrating the operation | movement of the 1st example of the offset adjustment part of a golf club head. It is a typical top view showing the lid of the 1st example of the golf club head of the golf club of embodiment of this invention. It is a typical top view showing the hosel part of the 1st example of the golf club head of the golf club of embodiment of this invention. (A) is a typical disassembled perspective view which shows the 2nd example of the offset adjustment part of the golf club head of the golf club of embodiment of this invention, (b) is a golf club of the golf club of embodiment of this invention It is a typical perspective view showing the 2nd example of the offset adjustment part of a head. (A) is a typical disassembled perspective view which shows the 3rd example of the offset adjustment part of the golf club head of the golf club of embodiment of this invention, (b) is a golf club of the golf club of embodiment of this invention It is a typical perspective view showing the 3rd example of the offset adjustment part of a head. (A) is a typical disassembled perspective view which shows the 4th example of the offset adjustment part of the golf club head of the golf club of embodiment of this invention, (b) is a golf club of the golf club of embodiment of this invention It is a schematic perspective view which shows the 4th example of the offset adjustment part of a head. (A) is a typical disassembled perspective view which shows the 5th example of the offset adjustment part of the golf club head of the golf club of embodiment of this invention, (b) is a golf club of the golf club of embodiment of this invention It is a schematic perspective view which shows the 5th example of the offset adjustment part of a head. It is a side view showing the 2nd example of a golf club head of a golf club of an embodiment of the present invention. It is a disassembled perspective view which shows the 2nd example of the golf club head of the golf club of embodiment of this invention. It is a side view showing the 3rd example of a golf club head of a golf club of an embodiment of the present invention. It is a disassembled perspective view which shows the 3rd example of the golf club head of the golf club of embodiment of this invention. It is a side view showing the 4th example of a golf club head of a golf club of an embodiment of the present invention. It is a perspective view showing the 5th example of a golf club head of a golf club of an embodiment of the present invention. It is a typical disassembled perspective view showing a golf club shaft of a golf club of an embodiment of the present invention. It is a typical perspective view showing a golf club shaft of a golf club of an embodiment of the present invention.

The golf club head and the golf club of the present invention will be described in detail below based on preferred embodiments shown in the accompanying drawings.
(First example of golf club head)
FIG. 1 is a schematic view showing a golf club according to an embodiment of the present invention, FIG. 2 is a perspective view showing a first example of a golf club head of the golf club according to the embodiment of the present invention, and FIG. FIG. 17 is a side view showing a first example of a golf club head of a golf club according to an embodiment of the present invention. FIG. 4 is a schematic perspective view showing a first example of a golf club head of a golf club according to an embodiment of the present invention.

A golf club 10 shown in FIG. 1 is generally called a putter, and has a golf club head 12 and a golf club shaft 14. A grip 15 is attached to the golf club shaft 14. The golf club 10 is called a mallet type.
In the golf club 10 shown in FIG. 1, the golf club head 12 is disposed such that the sole 37 is in contact with the horizontal surface B so that the lie angle γ is set.
The lie angle γ means the angle on the heel side formed by the shaft axis S of the golf club shaft 14 and the horizontal surface B.

The golf club head 12 has a head body 20 provided with a face surface portion 30 constituting the face surface 31, and a hosel portion 22 provided on the head body 20 and on which the golf club shaft 14 is mounted.
The golf club head 12 further has an adjustment weight 24 provided on the head body 20. In addition, the golf club head 12 has a lie angle adjustment unit that changes the lie angle γ, and an offset adjustment unit 80 that changes the offset distance between the face surface 31 and the shaft axis S of the golf club shaft 14.

As shown in FIG. 2, the head main body 20 is provided with an overhanging portion 32 overhanging in a semi-cylindrical manner on the upper surface, and flat portions 34 provided on both sides of the overhanging portion 32. A hosel portion 22 is provided in the overhang portion 32. One flat portion 34 of the head body 20 constitutes a toe, and the other flat portion 34 constitutes a heel.
The head body 20 and the face surface portion 30 are made of, for example, stainless steel, copper, a copper alloy, aluminum, an aluminum alloy, titanium, a titanium alloy, or a combination of these.

By providing the overhanging portion 32, the area of the face surface 31 can be increased. This makes it possible to widen the sweet spot and to raise the center position of the sweet spot from the horizontal plane B. Therefore, when striking the golf ball, the center of the golf ball and the center position of the sweet spot can be brought close to each other without worrying about the position of the sole 37. As a result, it is suppressed that the hit golf ball bounces, the golf ball rotates in a forward rotation, and the straightness of the golf ball when hit is improved, and the directionality of the hit ball becomes good, and the hit direction is aligned. Cheap. Furthermore, a good hit feeling can be obtained.

Adjustment weights 24 (see FIGS. 1 to 3) are provided on the flat portions 34 respectively. That is, adjustment weights 24 are provided on both sides of the head body 20.
Specifically, on a flat surface 34c which is the upper surface of the flat portion 34, a recess 35 for installing the adjustment weight 24 is formed. The adjustment weight 24 is placed in the recess 35, and the adjustment weight 24 is fixed using, for example, a screw. In addition, the fixing method of the adjustment weight 24 is not specifically limited, If the adjustment weight 24 is a magnetic body, you may fix to the recessed part 35 using magnetic force, such as using a magnet.

The adjustment weight 24 is made of, for example, stainless steel, copper, a copper alloy, aluminum, an aluminum alloy, titanium, a titanium alloy, tungsten, or the like. Depending on the mass of the adjustment weight 24, the above-described materials are appropriately used. Further, the number of adjustment weights 24 is appropriately determined in accordance with the magnitude of the moment of inertia of the golf club head 12. The adjustment weight 24 is, for example, 60 grams in total mass. In this case, 30 grams are arranged on the flat portion 34 on one side.
Further, the shape of the recess 35 and the shape of the adjustment weight 24 are not particularly limited, and are appropriately determined depending on the shape of the flat surface 34 c of the flat portion 34 and the like. The shape of the adjustment weight 24 is appropriately determined according to the shape of the recess 35, the mass of the adjustment weight 24, and the like.

As shown in FIG. 3, the head main body 20 is provided with a plate-like portion 38 constituting a part of the sole 37 on the back face 31 b opposite to the face surface 31 of the head main body 20. The head body 20 and the plate-like portion 38 are integrated.
As shown in FIG. 4, in the plate-like portion 38, the thickness of the region 38 a corresponding to the overhang 32 is thin in the region 38 a corresponding to the overhang 32 and the region 38 b corresponding to the flat portion 34. That is, the thickness of the area 38b corresponding to the flat portion 34 is relatively thick. Thus, by making the region 38b corresponding to the flat portion 34 relatively thick and relatively heavy, the moment of inertia of the golf club head 12 can be increased, and the golf ball travels straight when hit. Can be enhanced. In addition, even if the golf ball is hit with the center of the face surface 31 off, high straightness can be obtained, and the directionality of hitting of the golf ball is excellent.
The moment of inertia is a moment of inertia about a rotation axis whose axis of rotation is a straight line (not shown) passing through the center of gravity (not shown) of the golf club head 12 and orthogonal to the horizontal plane B.

As shown in FIG. 4, a wall 32 a is provided on the back surface 32 b of the overhang 32 along the periphery of the overhang 32. The wall 32 a is not provided in part, including the top of the overhang 32. The wall portion 32a is provided with a female screw portion 32e for attaching the lid 25 (see FIG. 2). The screw 99 passes through the hole 27 provided in the lid 25 and is screwed into the female screw portion 32 e so that the lid 25 is fixed to the overhang portion 32.
An axis 33 perpendicular to the back surface 32 b of the overhang 32 is provided. The hosel portion 22 is provided in a region 32c surrounded by the wall portion 32a. In FIG. 4, the adjustment weight 24 (see FIGS. 1 to 3) is not shown.

As shown in FIG. 5, the hosel unit 22 includes a rotor 40 and a hosel 41 provided on the rotor 40. The hosel 41 fixes the golf club shaft 14.
The rotor 40 has an outer shape similar to the region 32c (see FIG. 4) surrounded by the wall 32a (see FIG. 4), and the outer shape is semi-cylindrical. The rotor 40 is provided with a hole 40a through which the shaft 33 (see FIG. 4) is inserted.
The rotor 40 can rotate about the shaft 33 with the shaft 33 inserted through the hole 40 a of the rotor 40. The rotation of the rotor 40 is restricted by the hosel 41 touching the edge 32d (see FIG. 4) of the wall 32a. The rotor 40 can be removed and replaced. The hosel 41 is provided at a position where the axis (not shown) of the hosel 41 constituted by a linear cylindrical member passes through the center of the hole 40a when the hole 40a is viewed from the face surface 31 side, for example. .

As the rotor 40 rotates, the lie angle γ (see FIG. 1) changes. By fixing the rotor 40 while rotating it at a predetermined angle, a specific lie angle γ can be obtained. For example, a wall 32a is provided to allow the rotor 40 to rotate 16 °. In this case, the lie angle γ can be, for example, in the range of 8 ° to 72 °, that is, the lie angle γ can be 64 ° to 80 °. The amount of rotation of the rotor 40 is determined to some extent by the size of the overhang 32 (see FIG. 4). However, the amount of rotation by which the rotor 40 rotates is not limited to the above 16 °, but is appropriately determined according to the range in which the lie angle γ is set, the size of the overhang portion 32, etc. is there. Since the lie angle γ has an upper limit of 80 ° in the rule, it is preferable that the adjustment range does not exceed 80 °.

The fixing method of the rotor 40 is not particularly limited. For example, a screw hole 39 (see FIG. 3) penetrating from the sole 37 (see FIG. 3) to the area 32c (see FIG. 4) is provided. The fixing screw 89 is screwed into 39 and the rotor 40 is pushed from below with the fixing screw 89 and fixed.
A lid 25 (see FIG. 3) surrounding the area 32c with the wall 32a is provided. The lid 25 accommodates the rotor 40 in the area 32 c. The lid 25 is fixed to the wall 32a by, for example, a screw.
A lie angle adjustment unit is configured by the hosel portion 22, the wall portion 32a, the shaft 33, the fixing screw 89, and the like.

As shown in FIG. 5, in the hosel portion 22, the hosel 41 is not straight but bent. The hosel 41 includes an attachment portion 48c to which the golf club shaft 14 is attached, a support portion 48a provided on the head main body 20, and a connecting portion 48b connecting the support portion 48a and the attachment portion 48c. For example, the support portion 48 a is connected to the rotor 40. The connecting portion 48b protrudes toward the face surface 31 (see FIG. 3). The mounting portion 48c is provided with a hole 48d to which the golf club shaft 14 is connected. For example, the offset adjustment unit 80 is provided in the connecting unit 48b, and the offset adjustment unit 80 will be described in detail later.
When the hosel 41 is used, the mounting position of the golf club shaft 14 (see FIG. 1) is a position where it protrudes from the face surface 31 as compared with the above-described hosel 41. By changing the length of the connecting portion 48b of the hosel 41, the offset distance can be changed.

With the configuration of the hosel 41 shown in FIG. 5, even when the center of the face surface 31 (see FIG. 1) is removed when the golf ball is hit, the rotation axis (shaft axis S of the golf club shaft 14 (see FIG. Since there is no face surface 31 on (see FIG. 1), the inclination of the face surface 31 does not shift easily. Therefore, the golf ball can be hit stably.
The offset distance is the distance F in the direction parallel to the horizontal plane B from the lower end 31 c of the face surface 31 to the shaft axis S 迄 as shown in FIG. 3. When the offset distance is long, the golf club shaft 14 is separated from the face surface 31.

The loft angle θ (see FIG. 3) of the golf club head 12 may be, for example, a golf club angle measuring device manufactured by Shobo Co., Ltd., a golf club angle measuring device manufactured by a golf galley, or a golf club gauge manufactured by Golf Smith. It is measured by a well-known measuring instrument. In addition, the measuring device of loft angle (theta) should just be a well-known thing, and it does not specifically limit in this invention.
As described above, the golf club 10 and the golf club head 12 can adjust the lie angle γ, the loft angle θ, the offset distance, and the moment of inertia independently and individually.

Next, the offset adjustment unit will be described.
FIG. 6 is a schematic perspective view showing a first example of the offset adjustment portion of the golf club head of the golf club according to the embodiment of the present invention. FIG. 7 (a) is a schematic view for explaining the operation of a first example of the offset adjusting portion of the golf club head of the golf club according to the embodiment of the present invention, and FIG. 7 (b) is an embodiment of the present invention. It is a schematic diagram for demonstrating the operation | movement of the 1st example of the offset adjustment part of the golf club head of golf club.

The offset adjustment unit 80 includes an expansion / contraction mechanism provided in the connecting portion 48 b of the hosel portion 22 to change the offset distance by expansion and contraction, and a fixing portion that fixes the offset distance at a predetermined distance.
As shown in FIG. 6, in the offset adjustment unit 80, the support portion 48a and the first member 82 constituting the connection portion 48b are connected with their axes at right angles. The mounting portion 48 c and the second member 84 constituting the connecting portion 48 b are connected with their axes at right angles.
The first member 82 is provided with a female screw portion 83 into which the spring member 88 is inserted and the screw member 86 is screwed. The female screw portion 83 has a stepped hole structure, and a female screw is not formed in a portion where the spring member 88 is inserted, and the opening diameter is formed larger than the region where the female screw is formed.

The second member 84 is provided with an opening 85 in which the first member 82 is disposed. The support portion 48 a is provided with a hole 87 communicating with the opening 85. The screw member 86 is inserted into the hole 87 and screwed into the female screw of the female screw portion 83.
In addition, it has a spring member 88 for biasing the first member 82 and the second member 84. The spring member 88 is inserted into the above-mentioned internal thread portion 83 to bias the first member 82 and the second member 84. The spring member 88 suppresses rattling of the first member 82 and the second member 84. The screw member 86 is inserted into the spring member 88 and screwed into the female screw of the female screw portion 83.

The screw member 86 fixes the first member 82 and the second member 84, and can change the relative position of the first member 82 and the second member 84. The screw member 86 functions as a fixing portion.
The first member 82, the second member 84, the screw member 86, and the spring member 88 constitute an expansion and contraction mechanism. By rotating the screw member 86, the relative position between the first member 82 and the second member 84 can be continuously changed, and the first member 82 and the second member 84 can be brought close to each other, or the first member 82 and the second member 84 can be separated. The offset adjustment unit 80 can expand and contract the connecting portion 48 b.

FIG. 7A is a schematic view for explaining the operation of the first example of the offset adjusting portion of the golf club head of the golf club according to the embodiment of the present invention, and FIG. 7B is a golf according to the embodiment of the present invention It is a schematic diagram for demonstrating the operation | movement of the 1st example of the offset adjustment part of the golf club head of a club.
FIG. 7A shows the state in which the first member 82 and the second member 84 are closest to each other, and shows the state in which the offset distance is the shortest. FIG. 7B shows the state in which the first member 82 and the second member 84 are separated the most, and shows the state in which the offset distance is the longest.
By rotating the screw member 86, it is possible to change continuously from the state shown in FIG. 7A to the state shown in FIG. 7B. For example, by providing a scale on the first member 82, the offset distance can be accurately adjusted.
In the offset adjustment unit 80 shown in FIG. 6, the screw member 86 is provided from the second member 84 side, but it is not limited to this. For example, the first member 82 and the second member 84 may be replaced with each other to provide the opening 85 and the hole 87 in the first member 82.

In the above-described golf club head 12, as in the case of the lid 25 shown in FIG. 8, the grooves 25a, 25b, 25c may be provided to indicate a specific lie angle γ (see FIG. 1). In this case, as shown in FIG. 9, the hosel portion 22 is provided with a line 46 for aligning the groove 25a, 25b, 25c indicating the specific lie angle γ described above in the hosel 41. Thus, the lie angle γ can be easily made a specific angle by combining the line 46 provided in the hosel 41 described above with the grooves 25a, 25b and 25c indicating the specific lie angle γ described above. . For example, the groove 25a is a mark indicating a lie angle γ of 65 °, the groove 25b is a mark indicating a lie angle γ of 72 °, and the groove 25c is a mark indicating a lie angle γ of 77 °. In addition, for example, by coloring the grooves 25a, 25b, and 25c in a predetermined color, the lie angle γ can be determined by the color, so that the lie angle γ can be more easily adjusted.
What is used for setting the lie angle γ is not limited to the above-mentioned groove, and it may be a mark, for example, a line showing a specific lie angle γ on the lid 25 may be used to set the lie angle γ The configuration may be provided for each. Also in this case, the lie angle γ can be easily adjusted by determining the color in advance for the line.
8 is a schematic plan view showing a lid of a first example of a golf club head of a golf club according to an embodiment of the present invention, and FIG. 9 is a plan view of the golf club head of the golf club according to an embodiment of the present invention. It is a typical top view which shows the hosel part of 1 example.

Further, in the golf club head 12 described above, by changing the position at which the hosel 41 is attached to the rotor 40, the golf club head 12 can be used for right or left hit. The rotor 40 is removable as described above, and by replacing the rotor 40, it is possible to easily change one golf club to right or left in one golf club.
The hosel portion 22 can be easily changed to one for right or left in one golf club by preparing one in which the attachment position of the hosel 41 to the rotor 40 is changed. When one golf club is to be hit for the right or left, the lid 25 is configured to have a line 25a, 25b, 25c indicating a specific lie angle γ (see FIG. 1) (see FIG. 8). For the purpose of hitting the left or the left, according to the position of the hosel 41, one having a changed position where the lines 25a, 25b, 25c are provided is prepared.

The offset adjustment unit 80 is not limited to the configuration shown in FIG. 6 and may have another configuration. Hereinafter, second to fifth examples of the offset adjustment unit will be described. In the second to fifth examples of the offset adjusting unit described below, the same components as those of the offset adjusting unit 80 shown in FIGS. 5 and 6 are denoted by the same reference numerals, and the detailed description thereof is omitted. Do.
First, a second example of the offset adjustment unit will be described.
FIG. 10 (a) is a schematic exploded perspective view showing a second example of the offset adjusting portion of the golf club head of the golf club according to the embodiment of the present invention, and FIG. 10 (b) is a golf according to the embodiment of the present invention It is a typical perspective view showing the 2nd example of the offset adjustment part of the golf club head of a club.

The offset adjusting unit 80 shown in FIGS. 10A and 10B differs from the offset adjusting unit 80 shown in FIG. 6 in that the spring member 88 is not provided. The first member 82 is formed with a hole 90 which penetrates in the vertical direction and extends in the longitudinal direction of the first member 82. In the second member 84, screw holes 91 penetrating the opening 85 are formed in the left and right wall surfaces. Further, holes 92 penetrating the opening 85 are formed in the upper and lower wall surfaces. The bore 92 communicates with the bore 90 of the first member 82. A screw 93 is screwed into the screw hole 91 to fix the first member 82 and the second member 84. The first member 82 and the second member 84 constitute a connecting portion 48 b.
As shown in FIG. 10B, a bolt 95 is passed through the hole 92 of the second member 84 (see FIG. 10A) and the hole 90 of the first member 82 (see FIG. 10A). The first member 82 and the second member 84 are fixed by the bolt 95 and the nut 96.

Since the hole 90 extends in the longitudinal direction of the first member 82, the positions of the first member 82 and the second member 84 are changed, and the bolt 95 and the nut 96 are used as the first member 82 and the second member 84. It can be fixed. Further, the screw 93 is screwed into the screw hole 91 to fix the first member 82 and the second member 84. Thereby, the offset distance can be adjusted. In this case, for example, by providing a scale on either of the left and right surfaces of the first member 82, the offset distance can be accurately adjusted.
Moreover, the position in which the screw hole 91 and the hole 92 are provided is not particularly limited, and may be on the same circumferential surface of the second member 84.
In the second example of the offset adjustment unit 80, the first member 82, the second member 84, the bolt 95, and the nut 96 constitute an extension mechanism, and the bolt 95, the nut 96, and the screw 93 form a fixed portion. Configured

Next, a third example of the offset adjustment unit will be described.
FIG. 11 (a) is a schematic exploded perspective view showing a third example of the offset adjusting portion of the golf club head of the golf club according to the embodiment of the present invention, and FIG. 11 (b) is a golf according to the embodiment of the present invention It is a typical perspective view showing the 3rd example of the offset adjustment part of the golf club head of a club.
The offset adjusting unit 80 shown in FIGS. 11A and 11B differs from the offset adjusting unit 80 shown in FIG. 6 in that the spring member 88 is not provided. Nothing is formed on the first member 82. Screw holes 91 penetrating through the opening 85 are formed in the left and right wall surfaces of the second member 84. In addition, screw holes 97 penetrating through the opening 85 are formed in the upper and lower wall surfaces. The screw 93 is screwed into the screw hole 91, and the screw 98 is screwed into the screw hole 97 to fix the first member 82 and the second member 84.
By changing the positions of the first member 82 and the second member 84, as shown in FIG. 11B, the first member 82 and the second member 84 can be fixed by the screw 93 and the screw 98. Thereby, the offset distance can be adjusted. In this case, for example, by providing a scale on the first member 82, the offset distance can be accurately adjusted.
In the third example of the offset adjustment unit 80, the first member 82, the second member 84, the screw 93, and the screw 98 constitute an expansion and contraction mechanism, and the screw 93 and the screw 98 constitute a fixing unit.

Next, a fourth example of the offset adjustment unit will be described.
FIG. 12 (a) is a schematic exploded perspective view showing a fourth example of the offset adjusting portion of the golf club head of the golf club according to the embodiment of the present invention, and FIG. 12 (b) is a golf according to the embodiment of the present invention It is a typical perspective view showing the 4th example of the offset adjustment part of the golf club head of a club.
The offset adjusting unit 80 shown in FIGS. 12A and 12B differs from the offset adjusting unit 80 shown in FIG. 6 in that the spring member 88 is not provided. The first member 82 is a rail member, and has a first groove 100 and a second groove 101 extending in the longitudinal direction of the first member 82. The base 102 between the first groove 100 and the second groove 101 is formed with a hole 103 extending in the longitudinal direction of the first member 82.
The second member 84 has a first guide 110 fitted in the first groove 100 and a second guide 111 fitted in the second groove 101. The first guide 110 has substantially the same shape as the shape of the first groove 100, and the second guide 111 has substantially the same shape as the shape of the second groove 101.

The first groove 100 is preferably deeper than the second groove 101 because a first guide 110 into which a bolt 104 described later is screwed is fitted. Further, since the first groove 100 is deeper than the second groove 101, it is preferable that the first guide 110 be thicker than the second guide 111 in accordance with the first groove 100.
The first guide 110 is provided with a screw hole 112. The second guide 111 is provided with a hole 113 at a position corresponding to the screw hole 112.

As shown in FIG. 12B, with the first guide 110 of the second member 84 fitted in the first groove 100 and the second guide 111 fitted in the second groove 101, the hole 113 of the second member 84. , And the bolt 104 is screwed into the screw hole 112 of the first guide 110 of the second member 84 through the bolt 104 in the longitudinally extending hole 103 of the first member 82, and the first member 82 and the second member 84 And fix. Since the hole 103 of the first member 82 extends in the longitudinal direction, the positions of the first member 82 and the second member 84 can be changed to fix the first member 82 and the second member 84 by the bolt 104. it can. Thereby, the offset distance can be adjusted. In this case, for example, by providing a scale on the first member 82, the offset distance can be accurately adjusted.

Further, by providing the screw holes 112 in the first guide 110, it is possible to eliminate the need for a nut for the bolt 104, and in adjusting the offset distance, it becomes unnecessary to hold the nut, and the workability is improved. Furthermore, since it is not necessary to hold the nut, the offset distance of the tool can be adjusted with only one type of tool such as a wrench for turning the bolt 104.
In the fourth example of the offset adjustment unit 80, the first member 82, the second member 84, and the hole 103 extending in the longitudinal direction of the first member 82, and the bolt 104 and the screw hole 112 constitute an extension mechanism, The fixing portion is constituted by the bolt 104 and the screw hole 112.

Next, a fifth example of the offset adjustment unit will be described.
Fig. 13 (a) is a schematic exploded perspective view showing a fifth example of the offset adjusting portion of the golf club head of the golf club according to the embodiment of the present invention, and Fig. 13 (b) is a golf according to the embodiment of the present invention It is a typical perspective view showing the 5th example of the offset adjustment part of the golf club head of a club.
The offset adjustment unit 80 shown in FIGS. 13 (a) and 13 (b) is different from the offset adjustment unit 80 shown in FIGS. 12 (a) and 12 (b) in the screw hole 112 of the second member 84. Alternatively, the configuration is the same except that the nut 114 is provided in a fixed manner.

As shown in FIG. 13B, the bolt 104 is screwed into the nut 114 of the second member 84 through the bolt 104 in the hole 113 of the second member 84 and the hole 103 extending in the longitudinal direction of the first member 82. The first member 82 and the second member 84 are fixed. Since the hole 103 of the first member 82 extends in the longitudinal direction, the positions of the first member 82 and the second member 84 are changed so that the bolt 104 and the nut 114 can be used as the first member 82 and the second member 84. It can be fixed. Thereby, the offset distance can be adjusted. In this case, for example, by providing a scale on the first member 82, the offset distance can be accurately adjusted.

Further, by fixing the nut 114 to the first guide 110, it is not necessary to hold the nut at the time of adjusting the offset distance, and the workability is improved. Furthermore, since it is not necessary to hold the nut, the offset distance of the tool can be adjusted with only one type of tool such as a wrench for turning the bolt 104.
In the fifth example of the offset adjustment unit 80, the first member 82, the second member 84, and the hole 103 extending in the longitudinal direction of the first member 82, the bolt 104 and the nut 114 constitute an extension mechanism, and the bolt The fixing portion is constituted by the 104 and the nut 114.

In the offset adjusting unit 80 shown in FIGS. 12 (a) and 12 (b) and the offset adjusting unit 80 shown in FIGS. 13 (a) and 13 (b), the cross-sectional shape of the groove is a square having parallel side surfaces However, the cross-sectional shape of the groove may be a polygon other than a square. Also, for example, the cross-sectional shape of the groove may be trapezoidal so as to make it difficult for the first guide 110 and the second guide 111 to come out of the groove. In the case of a trapezoidal shape, it is preferable that the base 102 side be narrower.

The offset adjusting unit 80 according to the first to fifth examples described above may be made of, for example, the same material as that of the rotor 40, but the first member 82 and the second member 84 may be made of any materials. It is not something to be done. Further, since the first member 82 is provided on the rotor 40, it is preferable to integrally form the first member 82 with the rotor 40 from the viewpoint of formability. In this case, the first member 82 and the rotor 40 are made of the same material.
The first member 82 and the second member 84 may be made of the same material, but materials that correspond to the strength of the offset adjustment unit 80, the mass of the golf club head, and the like can be used as appropriate. For the first member 82 and the second member 84, for example, metal-based materials such as aluminum alloy, iron, steel, stainless steel, and copper alloy, resin-based materials such as titanium alloy, and polycarbonate can be used.
From the viewpoint of reducing the weight of the offset adjusting unit 80, it is preferable to use an aluminum alloy such as duralumin or a polycarbonate, which has a density smaller than that of an iron-based material such as stainless steel.
Further, as the spring, screw, bolt, nut and the like, materials corresponding to the strength of the offset adjusting unit 80, the mass of the golf club head, and the like can be appropriately used.

(Second example of golf club head)
The golf club head 12 is not limited to the above-described configuration. Next, a second example of the golf club head will be described.
FIG. 14 is a perspective view showing a second example of the golf club head of the golf club according to the embodiment of the present invention, and FIG. 15 is an exploded view showing the second example of the golf club head of the golf club according to the embodiment of the present invention It is a perspective view.
In FIGS. 14 and 15, the same components as those of the golf club 10 shown in FIGS. 1 to 5 are designated by the same reference numerals and their detailed description will be omitted. In FIG. 15, the illustration of the adjustment weight 24 is omitted.
The golf club head 50 of the second example shown in FIGS. 14 and 15 has an angle adjusting portion that changes the loft angle θ of the face surface 31 compared to the golf club head 12 shown in FIGS. 1 to 5. The other configuration is the same.

The face surface portion 30 shown in FIG. 14 is detachably provided to the head main body 20, and the face surface portion 30 is replaceable. A plurality of face surface portions 30 are prepared for each loft angle θ, and face surface portions 30 corresponding to the loft angle θ are provided.
As shown in FIG. 15, the face surface portion 30 has a face portion 30a having the same shape as the overhang portion 32 and the flat portion 34 of the head main body 20, and a bent portion 30b provided at each end of the face portion 30a. . The bent portion 30 b is provided with a hole 30 c at a position aligned with the screw hole 34 b formed in the side surface 34 a of the flat portion 34. The face portion 30 a is formed at an angle corresponding to the loft angle θ. It becomes thinner as it goes from the lower end 31c of the face 31 to the top 31d.

As shown in FIG. 14, in the face surface portion 30, the bent portion 30b is overlapped on the side surface 34a of the flat portion 34, and the hole 30c and the screw hole 34b are aligned. It is fixed to the head body 20 in a state of being in contact with the end face 20 a of 20. In this case, the loft angle θ of the face surface 31 of the face surface portion 30 is a predetermined angle. As described above, by attaching the face surface portion 30 having the predetermined loft angle θ to the head body 20, the loft angle θ can be changed.
An angle adjustment unit that changes the loft angle θ of the face surface 31 is configured by the face surface portion 30 that is removable and prepared for each loft angle θ. The face portion 30 is prepared, for example, in the range of 0 ° to 7 ° in 1 ° increments.
When the loft angle θ is 0 °, the end face 20 a of the head main body 20 may be the face surface 31.
In the golf club head 50, like the above-described golf club 10 and golf club head 12, the lie angle γ, the offset distance and the moment of inertia can be adjusted independently and individually, and furthermore, the loft angle θ is also independent. Can be adjusted individually.
The golf club head 50 can be easily changed to the right or left in one golf club by replacing the rotor 40.

(Third example of golf club head)
The golf club head 12 is not limited to the above-described configuration. Next, a third example of the golf club head will be described.
FIG. 16 is a side view showing a third example of the golf club head of the golf club according to the embodiment of the present invention, and FIG. 17 is a disassembled view showing the third example of the golf club head of the golf club according to the embodiment of the present invention It is a perspective view.
The golf club head 51 of the third example shown in FIGS. 16 and 17 has an angle adjusting portion that changes the loft angle θ of the face surface 31 as compared to the golf club head 12 shown in FIGS. The other configuration is the same.
Unlike the golf club head 50 of the second example, in the golf club head 51, the face surface portion 60 is not replaceable, and the sole 37 side of the face surface portion 60 is opposite to the head main body 20 starting from the top 31d of the face surface 31. It is movable to

As shown in FIGS. 16 and 17, the face surface portion 60 has a face portion 60a having the same shape as the overhang portion 32 and the flat portion 34 of the head main body 20, and a bent portion 60b provided at each end of the face portion 60a. And a bent portion 60c provided on the bottom surface of the face portion 60a. The bent portion 60b is provided with a hole 60d through which a fixing screw 62 (see FIG. 16) to be screwed into a screw hole 34b formed in the side surface 34a of the flat portion 34 is inserted. A hole 60d is provided in the bent portion 60c for inserting a fixing screw (not shown) screwed into a screw hole (not shown) formed in the sole 37. The hole 60 d is a long hole and allows movement of the face surface portion 60. It has a length corresponding to the sliding amount of the face surface portion 60.

In the face surface portion 60, as shown in FIG. 16, the bent portion 60b is overlapped on the side surface 34a (see FIG. 17) of the flat portion 34 (see FIG. 17), and the hole 60d and the screw hole 34b (see FIG. 17) Are aligned, and the fixing screw 62 is provided in the screw hole 34b. Also in the bent portion 60c, the hole 60d and a screw hole (not shown) formed in the sole 37 are aligned, and a fixing screw (not shown) is screwed into the screw hole.
Thus, the face surface portion 60 is fixed to the head main body 20 by the fixing screw 62. In this case, the loft angle θ of the face surface 31 of the face surface portion 60 is a predetermined angle. The loft angle θ can be changed by releasing fixation by the fixing screw 62, rotating the face surface portion 60 with the top 31d as a starting point, and fixing again by the fixing screw 62. The loft angle θ of the face surface 31 of the face surface portion 60 can be changed, for example, in the range of 0 ° to 7 °. In this case, the sliding amount of the face surface portion 60 is determined according to the range of 0 ° to 7 ° of the loft angle θ. The length of the hole 60d is determined according to the range of 0 ° to 7 ° of the loft angle θ.
In the golf club head 51, the lie angle γ, the offset distance and the moment of inertia can be adjusted independently and individually as in the golf club 10 and the golf club head 12 described above, and the loft angle θ is also independent. Can be adjusted individually.
The golf club head 51 can be easily changed to the right or left in one golf club by replacing the rotor 40.

(Fourth Example of Golf Club Head, Fifth Example)
In the golf club head 51 shown in FIG. 16, when the loft angle θ increases, a gap 61 is generated between the face surface portion 60 and the end face 20 a of the head main body 20. Therefore, in order to fix the face surface portion 60 more firmly, as in the golf club head 52 of the fourth example shown in FIG. 18, shims 64 are formed in the gap 61 between the face portion 60a and the end face 20a of the head main body 20. May be provided. The golf club head 52 shown in FIG. 18 has the same configuration as the golf club head 51 shown in FIG. 16 except that the shim 64 is provided.
The shim 64 is made of, for example, engineering plastic such as POM (polyacetal), urethane, aluminum, aluminum alloy, iron, steel, stainless steel or the like.

The golf club head 12, the golf club head 50, the golf club head 51, and the golf club head 52 described above are all mallet type, but the invention is not limited to this, and the fifth example shown in FIG. Like the golf club head 53, a pin type configuration in which the plate-like portion 38 is not provided in the head body 21 may be used. Also in the golf club head 53 shown in FIG. 19, adjustment of the moment of inertia using the adjustment weight 24, adjustment of the lie angle γ (see FIG. 1), adjustment of the loft angle θ (see FIG. 3) and adjustment of the offset distance , Can be independent of each other. Also in the golf club head 53 shown in FIG. 19, the same effects as those of the golf club head 12 and the golf club head 50 described above can be obtained.

In the golf club head 12, the golf club head 50, the golf club head 51, the golf club head 52 and the golf club head 53 described above, the face surface 31 is, for example, a smooth flat surface having a metallic luster, but is limited thereto. It is not a thing. The face surface 31 may be, for example, one that has been subjected to milling using an end mill or the like. Innumerable protrusions are formed on the face surface 31 subjected to milling. The face surface 31 subjected to the milling process has a striking feel increased by the innumerable protrusions, and the infrequent protrusions increase the friction between the face surface 31 and the golf ball, thereby increasing the directional stability of the hitting ball.
The golf club head 12, the golf club head 50, the golf club head 51, the golf club head 52 and the golf club head 53 described above each have a lie angle γ, an offset distance and an inertia moment independently and individually. It is possible to adjust, and furthermore, loft angle θ can also be adjusted independently and individually, but it is at least the above-mentioned offset adjusting unit 80 and it is possible to adjust the offset distance Good.

In the golf club head 12, the golf club head 50, the golf club head 51, the golf club head 52 and the golf club head 53 described above, when combined with the thick grip 15, even when the mass of the head is heavy, The stroke of can be stabilized. The length of the golf club shaft 14 is not particularly limited, and is about 32 inches to 35 inches.
The golf club shaft 14 may have a fixed shaft length or a variable shaft length, and is not particularly limited. Examples of the variable shaft length include those shown in FIGS. 20 and 21. For example, the length of the shaft can be adjusted in the range of about 32 inches to 35 inches.

FIG. 20 is a schematic exploded perspective view showing a golf club shaft of a golf club according to an embodiment of the present invention, and FIG. 21 is a schematic perspective view showing a golf club shaft of a golf club according to an embodiment of the present invention.
The golf club shaft 14 shown in FIGS. 20 and 21 has a telescopic structure. The golf club shaft 14 has a cylindrical grip portion 120 to which the grip 15 (see FIG. 1) is attached, a cylindrical shaft support portion 122 provided on an inner portion 120c of the grip portion 120, and an inner portion of the shaft support portion 122. And a lock nut 126 for fixing the shaft portion 124 to the shaft support portion 122, and a stopper pin 128 for suppressing the rotation of the shaft portion 124.

The grip portion 120 is provided with a hole 120 a penetrating in a direction orthogonal to the axis. The stopper pin 128 is inserted into the hole 120a.
The shaft support portion 122 is provided with a groove 122 b penetrating in a direction orthogonal to the axis line at the tip end portion 122 a. A threaded portion 122c is provided at the base of the groove 122b.
The shaft portion 124 is provided with a stopper ring 124 b at a base portion 124 c. Further, the base portion 124c is provided with a length adjustment groove 124a penetrating in a direction orthogonal to the axis. The shaft portion 124 is inserted into the shaft support portion 122 with the stopper ring 124 b facing. The tip 124 d of the shaft 124 is inserted into the hole 48 d of the hosel 41 and attached to the golf club head.
The lock nut 126 is internally provided with a female screw portion (not shown) screwed with the male screw portion 122 c of the shaft support portion 122. The female thread portion is configured to be tapered such that the diameter of the distal end 126a is smaller than that of the proximal end 126c. When the lock nut 126 is screwed with the male thread portion 122c, the groove 122b narrows and the shaft portion 124 is a shaft support It is fixed to the part 122.

With the stopper pin 128 passing through the hole 120a of the grip portion 120, the groove 122b of the shaft support portion 122, and the length adjustment groove 124a of the shaft portion 124, as shown in FIG. By screwing the lock nut 126 to 122c, the shaft portion 124 is fixed at a predetermined length without rotating, and the golf club shaft 14 can be made to have a predetermined length.
In the golf club shaft 14, the lock nut 126 is loosened, and the shaft portion 124 is moved in and out of the shaft support portion 122 to change the protrusion amount of the shaft portion 124 with respect to the shaft support portion 122. Can be adjusted.
By providing a scale on the shaft portion 124, the length of the golf club shaft 14 can be accurately adjusted. The golf club shaft 14 is not limited to the above-mentioned telescopic structure as a variable shaft length.

The present invention is basically configured as described above. As mentioned above, although the golf club head and golf club of this invention were demonstrated in detail, this invention is not limited to the above-mentioned embodiment, You may make various improvement or change in the range which does not deviate from the main point of this invention. Of course.

10 golf club 12, 50, 51, 52, 53 golf club head 14 golf club shaft 15 grip 20, 21 head main body 22 hosel portion 24 adjustment weight 25 lid 30 face surface portion 30a face portion 30b bent portion 30c hole 31 face surface 31 b back face 32 overhanging portion 34 flat portion 40 rotor 41 hosel B horizontal surface F distance S shaft axis γ lie angle θ loft angle

Claims (8)

A golf club head used for putters,
A head main body provided with a face surface portion that constitutes the face surface;
A hosel portion including a mounting portion on which a golf club shaft is mounted, a support portion provided on the head body, and a connection portion connecting the support portion and the mounting portion;
An offset adjustment unit that changes an offset distance between the face surface and the shaft axis of the golf club shaft;
The offset adjustment unit includes an expansion / contraction mechanism provided at the connection portion of the hosel portion to change the offset distance by expansion and contraction, and a fixing portion for fixing the offset distance at a predetermined distance. Golf club head. The golf club according to claim 1, wherein the offset adjustment portion extends the connection portion in the direction of the shaft axis of the golf club shaft from the face surface, and the expansion and contraction mechanism extends and contracts the connection portion. head. The golf club head according to claim 1, further comprising a lie angle adjustment unit that changes a lie angle. The head main body includes an overhanging portion projecting in a semi-cylindrical manner on the upper surface, and flat portions provided on both sides of the overhanging portion,
The golf club head according to any one of claims 1 to 3, wherein the hosel portion is provided on the overhanging portion, and adjustment weights are provided on the flat portions so as to be attachable thereto. The golf club head according to any one of claims 1 to 4, further comprising an angle adjustment unit that changes a loft angle of the face surface. The back surface opposite to the face surface of the head main body is provided with a plate-like portion which constitutes a part of a sole, and the plate-like portion corresponds to a region corresponding to the projecting portion and the flat portion. The golf club head according to claim 4, wherein in the region, the thickness of the region corresponding to the overhang portion is thin. The hosel portion is provided on a rear surface side of the face surface of the overhang portion, and includes a rotor rotatable at a predetermined angle, and a hosel provided on the rotor for fixing a golf club shaft.
The golf club head according to any one of claims 4 to 6, wherein the rotor is fixed at a predetermined angle to obtain a specific lie angle. A golf club comprising the golf club head according to any one of claims 1 to 7.

Images