JP2017213271A - Part for golf club head, golf club head and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a part for a golf club head capable of adjusting weight of a golf club head by a simple structure.SOLUTION: A part for a golf club head for adjusting weight of a golf club head includes: a proximal part; a connection part; and a weight adjustment part. The connection part is disposed at a surface on a face side of the proximal part. The connection part includes at least an opening part which opens on the face side and the weight adjustment part is disposed in the opening part.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a golf club head part, a golf club head, and a manufacturing method thereof.

  In the manufacturing process of a golf club head, the weight of the golf club head may deviate from the tolerance due to manufacturing variations or the like. Since golf club heads whose weights are out of tolerance are defective, structures for adjusting the weight of golf club heads have been studied for the purpose of improving the yield of golf club heads.

  However, the structure for adjusting the weight of the conventional golf club head is complicated, and it has been desired to adjust the weight of the golf club head with a simpler structure.

Special table 2010-537731 gazette Noto 31488681

  It is an object of the present invention to provide a golf club head part that can adjust the weight of the golf club head with a simple structure.

  The golf club head part is a golf club head part that adjusts the weight of the golf club head, and includes a base portion, a connection portion, and a weight adjustment portion, and the connection portion is a face of the base portion. The connecting part is provided with an opening part that opens at least to the face side, and a weight adjusting part is provided in the opening part.

  According to the disclosed technology, it is possible to provide a golf club head part that can adjust the weight of the golf club head with a simple structure.

1 is a perspective view illustrating a golf club head according to an embodiment. 1 is an exploded perspective view illustrating a golf club head according to an embodiment. 1 is a cross-sectional view illustrating a golf club head according to an embodiment. It is the figure which looked at the parts for golf club heads concerning this embodiment from the back side. It is the figure which looked at the parts for golf club heads concerning this embodiment from the face side. It is sectional drawing which follows the BB line of FIG. It is process drawing which illustrates the manufacturing method of the golf club head which concerns on this Embodiment.

  Hereinafter, embodiments will be described with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and the overlapping description may be abbreviate | omitted.

[Structure of golf club head parts]
FIG. 1 is a perspective view illustrating a golf club head according to the present embodiment, and is a view of the golf club head viewed from the back side. FIG. 2 is an exploded perspective view illustrating the golf club head according to this embodiment. FIG. 3 is a cross-sectional view illustrating the golf club head according to the present embodiment, and shows a cross section taken along the line AA of FIG. 1 to 3, an arrow d ₁ indicates a toe-heel direction (left-right direction), an arrow d ₂ indicates a top-sole direction (vertical direction), and an arrow d ₃ indicates a face-back direction (front-back direction). Yes.

  A golf club head 1 shown in FIGS. 1 to 3 is an iron-type golf club head, and has a structure in which a golf club head part 20 is fixed to a main body 10. The main body 10 includes a face portion 11, a back portion 12, a sole portion 13, and a hosel portion 14. The main body 10 can be formed using, for example, a metal material such as soft iron, stainless steel, titanium, aluminum, or chromium molybdenum steel.

  The face portion 11 is a portion provided with a face surface 11f serving as a striking surface. The face portion 11 has a predetermined thickness, and the face surface 11 f forms the outer surface of the face portion 11. The back portion 12 is a portion that forms the back surface of the golf club head 1. The sole portion 13 is a portion that forms the bottom portion of the golf club head 1. The hosel part 14 is a part connected to the shaft.

  A golf club head part 20 is fixed to the back surface 11 h side of the face portion 11. The golf club head part 20 is a weight adjusting assembly that is attached by selecting a weight in order to adjust the weight of the golf club head 1. The golf club head part 20 includes a base portion 21, a connection portion 22, and a weight adjustment portion 23. A first double-sided tape 25 and a second double-sided tape 26 are disposed on both sides of the weight adjusting unit 23. In FIG. 2, for convenience, the first double-sided tape 25 is shown in a satin pattern (the same applies to a second double-sided tape 26 in FIG. 5 described later).

  The golf club head part 20 will be described in detail with reference to FIGS. 4 to 6 in addition to FIGS. FIG. 4 is a view of the golf club head part according to the present embodiment as viewed from the back side. FIG. 5 is a view of the golf club head part according to the present embodiment as viewed from the face side. 6 is a cross-sectional view taken along line BB in FIG. 4 to 6, for convenience, there is a portion drawn at a scale different from the actual size.

  The base 21 is obtained by joining an elastic body 211 and a name plate 212 with an adhesive or the like. The elastic body 211 can be formed from, for example, resin or rubber. The nameplate 212 can be formed of, for example, metal or resin. In the present embodiment, the base 21 is composed of two members, that is, the elastic body 211 and the nameplate 212, but may be composed of only one member, for example.

Top of the base 21 - dimension _{L 1} of the sole direction, for example, be 10 to 60 mm. Toe of the base portion 21 - heel dimension _{L 2} is, for example, can be 30 to 80 mm.

  The connecting portion 22 is disposed on the face-side surface 21 f of the base portion 21. The shape of the connecting portion 22 viewed from the face side is substantially the same as the shape of the base portion 21. As the connection part 22, a double-sided tape can be used, for example. By using a double-sided tape as the connecting portion 22, a simpler structure can be achieved. An example of the double-sided tape is a double-sided tape manufactured by 3M. The thickness of the connection part 22 can be 0.4-3 mm, for example.

  Note that metal, resin, rubber, or the like may be used as the connecting portion 22, and in that case, a relatively thin double-sided tape may be attached to the face-side surface of the connecting portion 22.

  An opening 22x is formed in the vicinity of the center portion of the connection portion 22. The opening 22x may be a penetrating portion that penetrates the connecting portion 22, or may be a bottomed recessed portion that opens to the face portion 11 side. The shape of the opening 22x viewed from the face side is a quadrangle in the present embodiment, but may be other shapes such as a circle, an ellipse, and a polygon.

Top opening 22x - dimension _{L 3} of the sole direction, for example, be 5 to 20 mm. Opening 22x of the toe - heel dimension _{L 4} are, for example, be 10 to 40 mm.

  The position of the center of gravity of the golf club head 1 can be changed by changing the position of the opening 22x. Specifically, the position of the center of gravity of the golf club head 1 can be lowered by moving the position of the opening 22x to the sole side, and the position of the center of gravity of the golf club head 1 can be raised by moving to the top side. Can do.

  In the present embodiment, the following description will be given by taking the case where the opening 22x is a penetrating portion that penetrates the connecting portion 22 as an example.

  In the opening 22x (through portion) of the connecting portion 22, a weight adjusting portion 23 having substantially the same shape as the opening 22x is disposed. More specifically, a first double-sided tape 25 is disposed on the back-side surface 23 b of the weight adjusting unit 23, and the weight adjusting unit 23 is exposed in the opening 22 x through the first double-sided tape 25. The base 21 is fixed to the face side surface 21f. As a material of the weight adjusting unit 23, for example, a metal material such as soft iron, stainless steel, titanium, aluminum, tungsten, copper, or the like can be used, but a resin material or the like may be used.

  Further, by making the specific gravity of the weight adjusting unit 23 larger than the specific gravity of the golf club head 1, the weight can be adjusted more effectively.

  A second double-sided tape 26 is disposed on the face-side surface 23 f of the weight adjusting unit 23. The second double-sided tape 26 may include a portion that protrudes at least partially in the direction of the face portion 11 relative to the face-side surface 22 f of the connection portion 22. In addition, when a double-sided tape is used as the connection part 22 and sufficient adhesive force is securable only with the connection part 22, the 2nd double-sided tape 26 does not need to be provided.

  The face-side surface 26 f of the second double-sided tape 26 and the face-side surface 22 f of the connecting portion 22 are fixed to the back surface 11 h of the face portion 11. At this time, even when the second double-sided tape 26 is provided with a portion that protrudes at least partially in the direction of the face portion 11 relative to the face-side surface 22f of the connection portion 22, After the fixing, the face-side surface 26f of the second double-sided tape 26 and the face-side surface 22f of the connecting portion 22 are substantially flush.

  As an example of the 1st double-sided tape 25 and the 2nd double-sided tape 26, the double-sided tape made from 3M company can be mentioned. Each thickness of the 1st double-sided tape 25 and the 2nd double-sided tape 26 can be 0.05-1 mm, for example.

[Golf club head manufacturing method]
FIG. 7 is a process diagram illustrating a method for manufacturing a golf club head according to this embodiment. First, in step S101, the main body 10 of the golf club head 1 to which the golf club head part 20 is not fixed is prepared. Next, in step S102, the weight of the main body 10 is measured. Next, in step S103, a difference weight between the weight of the main body 10 measured in step S102 and a preset target weight of the main body 10 is calculated.

  Next, in step S104, a plurality of weight adjusting units 23 having different weights are prepared, and one of the weight adjusting units 23 closest to the differential weight calculated in step S103 is selected. Next, in step S105, the base portion 21 is prepared, and the connecting portion 22 that is a double-sided tape is attached to the face-side surface 21f of the base portion 21. The connecting portion 22 is provided with an opening 22x at a predetermined position in advance.

  Next, in step S106, the first double-sided tape 25 is attached to the back-side surface 23b of the weight adjusting unit 23 selected in step S104. Next, in step S107, the weight adjusting unit 23 to which the first double-sided tape 25 is attached is inserted into the opening 22x of the connecting unit 22, and the first side double-sided tape 25 is used to place the weight adjusting unit 23 on the face side. Affixed to the surface 21f. Next, in step S108, the second double-sided tape 26 is attached to the face-side surface 23f of the weight adjusting unit 23 inserted into the opening 22x of the connection unit 22. Through the steps so far, the golf club head part 20 is completed.

  Next, in step S109, the face-side surface 26f of the second double-sided tape 26 of the golf club head part 20 and the face-side surface 22f of the connecting portion 22 are fixed to the back surface 11h of the face portion 11 of the main body 10. To do. At this time, the base portion 21 is pressed toward the face portion 11 side.

  When the second double-sided tape 26 includes a portion that protrudes at least partially in the direction of the face portion 11 from the face-side surface 22f of the connection portion 22, the first double-sided tape 25 and the second double-sided tape 25 When the double-sided tape 26 is compressed and the face-side surface 26f of the second double-sided tape 26 and the face-side surface 22f of the connecting portion 22 are substantially flush, the golf club head part 20 is The face portion 11 is fixed to the back surface 11h.

  Through the above steps, the golf club head 1 in which the golf club head part 20 is fixed to the main body 10 is completed.

  In golf club heads, weight tolerance is specified, but due to manufacturing variations, the weight of the golf club head may deviate from the tolerance. In the present embodiment, a plurality of weight adjusting sections 23 having different weights in advance are prepared, and an appropriate weight adjusting section 23 is selected from the plurality of weight adjusting sections 23 to produce the golf club head part 20. Then, by sticking the produced golf club head part 20 to the main body 10, the weight of the golf club head 1 can be prevented from deviating from the tolerance, and the yield of the golf club head 1 can be improved. In addition, in order to be able to adjust reliably, you may design so that the weight of the main body 10 may vary in the direction which becomes light.

  Since the weight of the golf club head 1 can be adjusted by selecting the weight adjusting unit 23, the balance of the golf club head 1 can be easily adjusted with a simple structure. In addition to manufacturing, for example, the user may use the golf club head part 20 in order to intentionally adjust the weight and the center of gravity of the golf club head.

  The preferred embodiment has been described in detail above. However, the present invention is not limited to the above-described embodiment, and various modifications and replacements are made to the above-described embodiment without departing from the scope described in the claims. Can be added.

  For example, in the above embodiment, there is one opening 22x, but a plurality of openings 22x may be used. In that case, the specific gravity of the weight adjusting portion disposed in each opening may be the same, or the specific gravity of the weight adjusting portion disposed in each opening may be varied in order to adjust the center of gravity of the golf club head.

  Further, in the above embodiment, an example in which the golf club head part for weight adjustment is fixed to the iron type golf club head, but the golf club head part is a wood type such as a driver, fairway wood, utility, etc. It may be fixed to the golf club head. In this case, the weight of the wood-type golf club head can be adjusted with a simple structure, and variations in the head weight can be reduced. Further, the balance can be easily adjusted by adjusting the weight of the wood type golf club head.

DESCRIPTION OF SYMBOLS 1 Golf club head 10 Main body 11 Face part 11f Face surface 11h The back surface of a face part 12 Back part 13 Sole part 14 Hosel part 20 Golf club head parts 21 Base part 22 Connection part 22x Opening part 23 Weight adjustment part 25 1st double-sided tape 26 Second double-sided tape 211 Elastic body 212 Name plate

Claims (8)

A golf club head part for adjusting the weight of the golf club head,
A base portion, a connection portion, and a weight adjustment portion;
The connecting portion is disposed on a face side surface of the base portion,
The connection portion includes an opening portion that opens at least to the face side,
A golf club head part, wherein a weight adjusting part is disposed in the opening.   The golf club head part according to claim 1, wherein the opening is a penetrating part that penetrates the connecting part.   The golf club head part according to claim 1, wherein the connecting portion is a double-sided tape.   4. The golf club head according to claim 1, wherein a first double-sided tape thinner than the connection portion is disposed on a back side surface of the weight adjusting portion. 5. parts.   5. The golf club head part according to claim 4, wherein a second double-sided tape thinner than the connection portion is disposed on a face side surface of the weight adjusting portion.   6. The golf club head part according to claim 5, wherein the second double-sided tape projects at least partially in a face side direction with respect to a face side surface of the connection portion.   A golf club head, wherein the golf club head part according to any one of claims 1 to 6 is fixed to a golf club head main body. A method of manufacturing a golf club head comprising a golf club head part for adjusting the weight of the golf club head,
Measuring the weight of the golf club head body;
Selecting one weight adjusting unit from a plurality of weight adjusting units based on the measured weight;
Producing a golf club head part having the selected weight adjusting unit;
Fixing the produced golf club head part to the golf club head main body,
In the step of producing the golf club head part,
Preparing a base, a connecting portion having an opening opening at least on the face side, and the selected weight adjusting portion;
Placing the connecting portion on the face side of the base,
A method of manufacturing a golf club head, wherein the weight adjusting unit is disposed in the opening.

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