JP2003334267A - Iron head - Google Patents
Iron headInfo
- Publication number
- JP2003334267A JP2003334267A JP2002145557A JP2002145557A JP2003334267A JP 2003334267 A JP2003334267 A JP 2003334267A JP 2002145557 A JP2002145557 A JP 2002145557A JP 2002145557 A JP2002145557 A JP 2002145557A JP 2003334267 A JP2003334267 A JP 2003334267A
- Authority
- JP
- Japan
- Prior art keywords
- head
- face plate
- welded
- main body
- boundary line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 34
- 238000005304 joining Methods 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000012805 post-processing Methods 0.000 abstract description 5
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 235000009508 confectionery Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010002 mechanical finishing Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Golf Clubs (AREA)
Abstract
(57)【要約】
【課題】 フェースプレートを溶接した場合の耐久性向
上と、ヘッドの熱変形量と溶接跡の後加工の手数を少な
くする。
【解決手段】 金属製ヘッド本体１０に金属製フェース
プレート１２を溶接したアイアンヘッドにおいて、フェ
ースプレートのヒール側縁部とヘッド本体との接合境界
ラインＬＨはヘッド正面のヒール１０Ｈ寄りの位置にあ
り、この部位はヘッドの上又は下から見た状態で凹形状
であり、曲率の関係でゴルフボールＧＢが殆ど当ること
のできない位置にあり、この接合境界ラインはレーザー
溶接によって溶接されている。
(57) [Problem] To improve durability when face plates are welded, and to reduce the amount of thermal deformation of the head and post-processing of the welding trace. In an iron head in which a metal face plate is welded to a metal head main body, a joint boundary line LH between the heel side edge of the face plate and the head main body is located near the heel 10H on the front of the head. The portion is concave when viewed from above or below the head, and is in a position where the golf ball GB can hardly hit due to the curvature, and this joining boundary line is welded by laser welding.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ゴルフ用のアイア
ンヘッドに関する。TECHNICAL FIELD The present invention relates to an iron head for golf.
【０００２】[0002]
【従来の技術】コストを下げたり、製造を容易にした
り、重心位置を調節したり、スイートエリアを広げた
り、飛距離を伸ばしたりのために、アイアンヘッドはそ
の全体を一体で形成することは殆どなく、一般に、異種
金属で形成された２個以上の部品を組み合わせて製造さ
れる。その製造には溶接等が使用される。例えば、特開
平２００１−２９３１１５号公報にその開示がある。ヘ
ッド本体の正面側段部に、高価であるが高強度なニッケ
ルベリリウム合金のフェースプレートをレーザー溶接に
て接合したヘッド等が開示されている。溶接棒を使用す
るＴＩＧ溶接であれば、ヘッドに及ぼす熱変形が大き
く、また、仕上げのための後加工も手数を要するが、レ
ーザー溶接では、一般にそうした熱変形量や後加工の手
数も少なくできる。2. Description of the Related Art Iron heads are almost entirely formed as a single unit in order to reduce costs, facilitate manufacturing, adjust the position of the center of gravity, expand the sweet area, and extend the flight distance. Instead, it is generally manufactured by combining two or more parts formed of different metals. Welding or the like is used for its manufacture. For example, the disclosure is disclosed in Japanese Patent Laid-Open No. 2001-293115. There is disclosed a head or the like in which an expensive but high-strength nickel-beryllium alloy face plate is joined to the front side step portion of the head body by laser welding. In the case of TIG welding using a welding rod, thermal deformation on the head is large and post-processing for finishing is also laborious, but laser welding can generally reduce the amount of thermal deformation and post-machining. .
【０００３】[0003]
【発明が解決しようとする課題】然しながら、レーザー
溶接では、接合境界部において被溶接体間に０．２ｍｍ
程の隙間があれば、レーザー光がその隙間を通過して裏
面側の部位を溶融させる。特に、ヘッド本体の正面側に
形成した段差部内にフェースプレートを挿入載置して溶
接する場合は、製造精度上、フェースプレート周縁とヘ
ッド本体段差壁との間に、部分的には０．２ｍｍ程度の
隙間は生じ易い。こうした場合に、ヘッドの裏面側に溶
融痕が残れば、裏面とはいえ外観上好ましくなく、商品
価値を低下させてしまう。また、ヘッドの正面側である
フェース面は打球面であるため、表面を滑らかに形成す
る必要があり、強度の観点から接合部をその周辺部に比
べて肉盛り形成することはできない。従って、溶接技術
が向上した今日においても、フェースプレート縁部とヘ
ッド本体との溶接部は、一般にフェースプレー自体又は
ヘッド本体自体の強度よりは低強度である。従って、ヘ
ッドに大きな負荷の作用する打球時に、こうした接合部
にはゴルフボールが直接には当らないことが望ましい。
依って本発明は、フェースプレートを溶接した場合の耐
久性向上と、ヘッドの熱変形量と溶接跡の後加工の手数
を少なくすることを目的とする。また、これに加えて外
観の向上を図ることを目的とする。However, in laser welding, the distance between the objects to be welded is 0.2 mm at the joint boundary portion.
If there is a sufficient gap, the laser light passes through the gap and melts the site on the back surface side. In particular, when the face plate is inserted and placed in the stepped portion formed on the front side of the head main body and welded, 0.2 mm is partially formed between the peripheral edge of the face plate and the head main body stepped wall in terms of manufacturing accuracy. Some gaps are likely to occur. In such a case, if a melting mark is left on the back surface of the head, the appearance is not preferable even though it is the back surface, and the commercial value is reduced. Further, since the face surface, which is the front side of the head, is a hitting surface, it is necessary to form the surface smoothly, and from the viewpoint of strength, it is not possible to form a welded portion in the welded portion as compared with the peripheral portion. Therefore, even today, with improved welding technology, the welded portion between the edge of the face plate and the head body is generally lower in strength than the face play itself or the head body itself. Therefore, it is desirable that the golf ball does not directly hit such a joint when the ball is hit with a large load.
Therefore, it is an object of the present invention to improve the durability when a face plate is welded, and to reduce the amount of thermal deformation of the head and the post-processing of welding marks. In addition to this, the purpose is to improve the appearance.
【０００４】[0004]
【課題を解決するための手段】上記目的に鑑み本発明の
請求項１では、金属製ヘッド本体に金属製フェースプレ
ートを溶接したアイアンヘッドにおいて、フェースプレ
ートのヒール側縁部とヘッド本体との接合境界ラインは
ヘッド正面のヒール寄りの位置にあり、この部位はヘッ
ドの上又は下から見た状態で凹形状であり、曲率の関係
でゴルフボールが殆ど当ることのできない位置にあり、
この接合境界ラインはレーザー溶接によって溶接されて
いることを特徴とするアイアンヘッドを提供する。ヘッ
ドの正面部（フェース面）のヒール寄りの部位は、一般
に上又は下から見た状態で凹形状に形成されており、こ
この曲率がゴルフボール外郭形状の曲率よりも大きけれ
ば、打球時にここにはゴルフボールが殆ど当らない。こ
のため、ヘッド本体にフェースプレートを溶接する場
合、ここに接合境界ラインを位置させれば、ボールが殆
ど当らないで済み、耐久性が向上する。ＴＩＧ溶接の場
合では溶接ビードを大きく研磨する仕上げ加工を要する
が、このように大きな曲率の凹部は一般に機械加工が困
難である。このため、仕上げ加工の少ないレーザー溶接
によれば困難な後加工の手数を低減できる他、ヘッドの
熱変形量を小さくでき、高品質なアイアンヘッドが提供
できる。In view of the above object, according to claim 1 of the present invention, in an iron head in which a metal face plate is welded to a metal head body, a joint boundary between a heel side edge portion of the face plate and the head body. The line is located near the heel in front of the head, and this part has a concave shape when viewed from above or below the head, and is in a position where the golf ball cannot almost hit due to the curvature.
This bond boundary line provides an iron head characterized by being welded by laser welding. The portion of the front surface (face surface) of the head near the heel is generally formed in a concave shape when viewed from above or below. If the curvature here is larger than the curvature of the outer shape of the golf ball, it is Almost no golf ball hits. Therefore, when the face plate is welded to the head main body, if the joining boundary line is located here, the ball hardly hits and durability is improved. In the case of TIG welding, a finishing process for polishing the welding bead largely is required, but such a concave portion having a large curvature is generally difficult to machine. For this reason, it is possible to provide a high-quality iron head because the amount of thermal deformation of the head can be reduced, in addition to reducing the number of steps required for post-processing, which is difficult to perform by laser welding with less finishing work.
【０００５】請求項２では、前記フェースプレート周縁
とヘッド本体との接合境界ラインは、フェースプレート
のヒール側縁部とヘッド本体との接合境界ラインを除
き、ヘッドの正面ではなく外周部にある請求項１記載の
アイアンヘッドを提供する。接合のやむを得ない部位、
即ち、フェースプレートのヒール側縁部とヘッド本体と
の接合境界部、以外を、ヘッドの外周部に設けることで
ここには打球時のボールが当らず、溶接形成されたヘッ
ドの耐久性を可及的に向上させることができる。According to a second aspect of the present invention, the joint boundary line between the peripheral edge of the face plate and the head main body is at the outer peripheral portion, not the front surface of the head, except for the joint boundary line between the heel side edge portion of the face plate and the head main body. An iron head according to item 1 is provided. Unavoidable parts of joining,
That is, by providing the outer peripheral portion of the head except for the joint boundary portion between the heel side edge of the face plate and the head main body, the ball at the time of hitting does not hit here, and the durability of the welded head is improved. It can be improved as much as possible.
【０００６】請求項３では、前記フェースプレートのヒ
ール側縁部を受けるヘッド本体の受部の肉厚がフェース
プレートの肉厚以上である請求項１又は２記載のアイア
ンヘッドを提供する。フェースプレートのヒール側縁部
とヘッド本体との接合境界部においては一般に隙間が存
在し得るので、レーザー溶接によりヘッド本体の受部の
肉厚をフェースプレートの肉厚以上に厚くし、これによ
り隙間から照射されたレーザー光による溶融の影響が裏
面側に至ることを防止でき、外観向上に寄与する。特
に、裏面側に凹部が形成されていて、この凹部の形状や
寸法によっては機械的な仕上げ加工の困難な場合がある
が、こうした場合に、特に好都合である。According to a third aspect of the present invention, there is provided the iron head according to the first or second aspect, wherein the thickness of the receiving portion of the head main body that receives the heel side edge portion of the face plate is equal to or greater than the thickness of the face plate. Since a gap can generally exist at the joint boundary between the heel side edge of the face plate and the head body, the thickness of the receiving portion of the head body is made thicker than that of the face plate by laser welding. It is possible to prevent the influence of melting due to the laser light emitted from the surface from reaching the back surface side, which contributes to improving the appearance. In particular, a concave portion is formed on the back surface side, and mechanical finishing may be difficult depending on the shape and size of the concave portion, which is particularly convenient in such a case.
【０００７】また、レーザー溶接の種類を、ＹＡＧレー
ザー溶接とすれば、溶け込み部の断面輪郭形状が平行状
態となり、フェースプレートに対する熱の影響が、プレ
ートの肉厚の半分のライン（面）に対して対称となるた
め、プレートが熱変形し難い。また、ロボットの利用範
囲が広く、プレートの全周をレーザー溶接するのに好都
合である。ＣＯ２レーザー溶接とすれば、溶け込み部の
断面輪郭形状が先細り状態となるため、仮に、上述の受
部の裏面側にまで溶融痕が到達したとしても、ＹＡＧレ
ーザーの場合よりは外観上見え難くなり、好都合であ
る。Further, if the type of laser welding is YAG laser welding, the cross-sectional contour shape of the welded portion is in a parallel state, and the effect of heat on the face plate is that of a line (face) that is half the plate thickness. The plate does not easily deform due to heat. Further, the robot can be used in a wide range, which is convenient for laser welding the entire circumference of the plate. In the case of CO 2 laser welding, the cross-sectional contour shape of the welded portion becomes a tapered state, so even if the melting mark reaches the back surface side of the above-mentioned receiving portion, it will be less visible in appearance than with the YAG laser. It is convenient.
【０００８】[0008]
【発明の実施の形態】以下、本発明を添付図面に示す実
施形態例に基づき、更に詳細に説明する。図１は本発明
に係るアイアンヘッドの正面図であり、図２は矢視線Ｂ
−Ｂによる横断面図、図３は矢視線Ｃ−Ｃによる横断面
図であり、フェース面に垂直な面で切断した図である。
このヘッドは、例えば、チタン又はチタン合金、鉄系金
属等の金属材料の鋳造によるヘッド本体１０と、ヘッド
本体１０と異なる金属の、例えば高強度圧延材からなる
板状のフェースプレート１２とをレーザー溶接して一体
化している。ヘッド本体は、この例ではホーゼル部１０
Ｋを一体的に有しており、このホーゼル部の根元部付近
であって、フェース面Ｆのヒール部１０Ｈ寄りの位置に
おいて上下方向の境界ラインＬＨを有するように、フェ
ース面よりも所定量低い段差部が形成されている。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 is a front view of an iron head according to the present invention, and FIG.
-B is a cross-sectional view taken along line C-C in FIG. 3, and FIG. 3 is a view taken along a plane perpendicular to the face surface.
This head includes, for example, a head main body 10 formed by casting a metal material such as titanium or a titanium alloy or an iron-based metal, and a plate-shaped face plate 12 made of a metal different from the head main body 10, for example, a high-strength rolled material. Welded and integrated. The head body is the hosel portion 10 in this example.
K is integrally provided, and is lower than the face surface by a predetermined amount so as to have a vertical boundary line LH at a position near the base of the hosel portion and near the heel portion 10H of the face surface F. A step portion is formed.
【０００９】その段差の落差はフェースプレート１２の
肉厚δに一致させており、その段差部の周縁部にはフェ
ースプレートの周縁部を載置させるヒール側受部１０Ｕ
等の受部が形成されている。このヘッド本体とフェース
プレートとをレーザー溶接してアイアンヘッドを形成し
ている。その接合境界ラインは、フェースプレートのヒ
ール側縁ではフェース面側に露出しているが、他の接合
境界ラインはアイアンヘッドの外周部に位置している。
即ち、トップ部１０Ｔ側はラインＬＴ、ソール部１０Ｓ
側はラインＬＳ、トウ部１０ＴＵ側はＬＴＵとして図示
している。The height difference of the step is made to coincide with the wall thickness δ of the face plate 12, and the heel side receiving portion 10U on which the peripheral edge portion of the face plate is placed is mounted on the peripheral edge portion of the step portion.
Etc. are formed. This head body and face plate are laser-welded to form an iron head. The joining boundary line is exposed to the face surface side at the heel side edge of the face plate, but the other joining boundary lines are located on the outer peripheral portion of the iron head.
That is, the top portion 10T side is line LT, the sole portion 10S
The side is illustrated as a line LS, and the toe portion 10TU side is illustrated as an LTU.
【００１０】このように接合境界ラインを可及的にフェ
ース面側に露出させず、しかも、フェース面側に位置し
ているラインＬＨは、後述の如くボールＧＢが殆ど当ら
ないため、打撃時の衝撃によっても接合部の破損が防止
できる。然しながら、本発明では、フェースプレートの
他の周縁の接合ラインがフェース面側に露出していても
よい。In this way, the joint boundary line is not exposed to the face surface side as much as possible, and the line LH located on the face surface side is almost not hit by the ball GB as will be described later. The joint can be prevented from being damaged even by impact. However, in the present invention, the bonding line on the other peripheral edge of the face plate may be exposed on the face surface side.
【００１１】図３に示すように、ホーゼル部の根元部付
近のヒール部１０Ｈと、ヘッド本体のその他の部分と
は、上面視において概ねへの字状に曲がっており、その
曲り部ＺＮの曲率は、ゴルフボールＧＢの外郭形状の曲
率よりも大きく、この部位ＺＮには通常はボールが当ら
ない。しかし、特殊な場合として、ボールがヘッドの上
縁や下縁に当る場合には部位ＺＮに当り得る。As shown in FIG. 3, the heel portion 10H near the root of the hosel portion and the other portion of the head body are bent in a generally V-shape when viewed from the top, and the curvature of the bent portion ZN. Is larger than the curvature of the outer shape of the golf ball GB, and the ball does not normally hit this portion ZN. However, as a special case, when the ball hits the upper edge or the lower edge of the head, it can hit the portion ZN.
【００１２】レーザー溶接を行った際に、特にヘッド本
体とフェースプレートとの隙間の存在によって、受部に
溶融痕が達し、その裏面側に溶融痕が到達すると外観上
好ましくない。そこで、受部１０Ｕの肉厚Δはフェース
プレートの肉厚δ以上とする。ヘッドは通常のヘッドと
同様に、裏面側にバックキャビティＢＫを設けている。
上記受部１０Ｕの裏面側にもキャビティＢＫ’が存在す
れば、仮に溶融痕が受部裏面にまで至っていても、視認
し難く、外観向上に役立つ。しかし、このキャビティＢ
Ｋ’が存在して受部の裏面側を仕上げ研磨し難い場合、
外観をより良くするには受部の裏面側にまで溶融痕を至
らしめないことが重要である。[0012] When laser welding is carried out, it is not preferable in appearance that melting traces reach the receiving part and reach the back side thereof due to the existence of a gap between the head body and the face plate. Therefore, the wall thickness Δ of the receiving portion 10U is set to be equal to or larger than the wall thickness δ of the face plate. The head is provided with a back cavity BK on the back surface side as in a normal head.
If the cavity BK ′ exists on the back surface side of the receiving portion 10U as well, even if a melting mark reaches the back surface of the receiving portion, it is difficult to visually recognize and it is useful for improving the appearance. However, this cavity B
If K'exists and it is difficult to finish polish the back side of the receiving part,
In order to improve the appearance, it is important that no melting marks reach the back side of the receiving part.
【００１３】前述の高強度圧延材の例としては、Ｔｉ−
１５Ｍｏ−５Ｚｒ−３Ａｌ，Ｔｉ−１５Ｖ−３Ｃｒ−３
Ｓｎ−３Ａｌ等のβ型チタン合金圧延材、ＳＰ７００
（Ｔｉ−４．５Ａｌ−３Ｖ−２Ｆｅ−２Ｍｏ）等のα−
β型チタン合金圧延材、１８Ｎｉ−１２Ｃｏ−４．５Ｍ
ｏ−１．５Ｔｉ−Ｆｅ，１８Ｎｉ−９Ｃｏ−５Ｍｏ−Ｆ
ｅ，１１Ｎｉ−１３．５Ｍｏ−３Ｃｒ−０．２Ｃ−Ｆ
ｅ，７Ｎｉ−１２Ｃｒ−４Ｓｉ−０．０２Ｃ−Ｆｅ等の
鉄系高強度圧延材等がある。As an example of the above-mentioned high strength rolled material, Ti-
15Mo-5Zr-3Al, Ti-15V-3Cr-3
Rolled β-type titanium alloy such as Sn-3Al, SP700
Α- such as (Ti-4.5Al-3V-2Fe-2Mo)
β-type titanium alloy rolled material, 18Ni-12Co-4.5M
o-1.5Ti-Fe, 18Ni-9Co-5Mo-F
e, 11Ni-13.5Mo-3Cr-0.2C-F
e, 7Ni-12Cr-4Si-0.02C-Fe and other ferrous high strength rolled materials.
【００１４】これらの高強度圧延材によるフェースプレ
ートでは、溶接の熱影響が小さく、弾性率が上昇し難
い。また、伸びや強度が小さくなり難い。従って、フェ
ース部が撓み易く、変形に強く、高反発性を有してボー
ルの飛距離がでると共に、強度が強い。In the face plate made of these high strength rolled materials, the thermal effect of welding is small and the elastic modulus is hard to increase. Also, elongation and strength are less likely to decrease. Therefore, the face portion is easily bent, is resistant to deformation, has a high resilience, allows a ball to travel a long distance, and has high strength.
【００１５】また、フェースプレートをヘッド本体に接
合させた従来のヘッドにおいて、一般にフェースプレー
トの後ろ側にあるヘッド本体開口部のヒール側は開口幅
が小さいため、トウ側と比べてヒール側の反発性は低
い。しかし、接合をレーザー溶接とすることで、溶接熱
の接合境界部以外の他部への影響は、他の溶接手法等と
比較して小さくでき、その意味でヘッドの形状安定や強
度の安定が得られ、また、直接ゴルフボールが当らない
為にヒール側受部１０Ｕを小さくできる。その結果、受
部１０Ｕの幅寸法Ｌを４ｍｍ以下と小さく形成できる。
これにより、フェースプレート周縁部を拘束する部位の
大きさ（幅）が小さくなり、これによりヒール側の反発
性が向上する。また、ヒール側のスイートエリアが拡大
する。Further, in the conventional head in which the face plate is joined to the head main body, the heel side of the head main body opening on the rear side of the face plate generally has a smaller opening width, so that the repulsion on the heel side is larger than that on the toe side. The sex is low. However, by using laser welding for joining, the influence of welding heat on other parts other than the joining boundary can be made smaller than other welding methods, and in that sense the shape stability and strength of the head are stable. Since the golf ball is not directly hit, the heel side receiving portion 10U can be made small. As a result, the width dimension L of the receiving portion 10U can be formed as small as 4 mm or less.
As a result, the size (width) of the portion that constrains the peripheral portion of the face plate is reduced, which improves the resilience on the heel side. In addition, the sweet area on the heel side will be expanded.
【００１６】また、接合をレーザー溶接とすることで、
溶接熱の接合境界部以外の他部への影響は、他の溶接手
法等と比較して小さくでき、その意味でヘッドの形状安
定や強度の安定が得られ、フェースプレートの肉厚を薄
くできる。その結果、反発性が向上する。具体的には、
１．５〜２．８ｍｍの肉厚δとすることができる。更に
は、ヘッド重量を一定とすれば、フェースプレートを薄
くできることで、その軽量化に寄与する分をヘッドの周
辺部に分散させてスイートエリアを拡大できる。Further, by using laser welding for joining,
The influence of welding heat on other parts other than the joint boundary can be made smaller than other welding methods, and in that sense the shape and strength of the head can be stabilized and the thickness of the face plate can be reduced. . As a result, the resilience is improved. In particular,
The wall thickness δ can be 1.5 to 2.8 mm. Furthermore, if the weight of the head is constant, the face plate can be made thin, and the portion contributing to the weight reduction can be dispersed in the peripheral portion of the head to enlarge the sweet area.
【００１７】図４はレーザー溶接をＣＯ２レーザー方式
とした場合の溶け込み部ＹＫを模式的に図示したもので
ある。図示の如く、溶け込み部の断面輪郭形状が先細り
状態となるため、仮に受部の裏面側にまで溶融痕が到達
したとしても、下記のＹＡＧレーザーの場合よりは外観
上見え難くなり、好都合である。図５はレーザー溶接の
種類をＹＡＧレーザー方式とした場合であり、溶け込み
部ＹＫ’の断面輪郭形状が平行状態となり、フェースプ
レートに対する熱の影響が、プレートの肉厚中央ライン
（面）に対して対称となるため、プレートが熱変形し難
い。また、ロボットの利用範囲が広く、プレートの全周
をレーザー溶接するのに好都合である。FIG. 4 schematically shows the welded portion YK when the laser welding is a CO 2 laser system. As shown in the figure, since the cross-sectional contour shape of the melted portion is in a tapered state, even if a melting mark reaches the back surface side of the receiving portion, it will be less visible in appearance than the case of the YAG laser described below, which is convenient . FIG. 5 shows a case where the type of laser welding is the YAG laser system, in which the cross-sectional contour shape of the welded portion YK ′ is in a parallel state, and the influence of heat on the face plate is relative to the plate thickness center line (face). The plate is hard to be deformed by heat because it is symmetrical. Further, the robot can be used in a wide range, which is convenient for laser welding the entire circumference of the plate.
【００１８】[0018]
【発明の効果】以上の説明から明らかなように本発明に
よれば、フェースプレートを溶接した場合の耐久性向上
と、ヘッドの熱変形量と溶接跡の後加工の手数を少なく
することが可能となる。As is apparent from the above description, according to the present invention, it is possible to improve the durability when a face plate is welded, and to reduce the amount of thermal deformation of the head and the post-processing of welding marks. Becomes
【図１】図１は本発明に係るアイアンヘッドの正面図で
ある。FIG. 1 is a front view of an iron head according to the present invention.
【図２】図２は図１の矢視線Ｂ−Ｂによる横断面図であ
る。2 is a cross-sectional view taken along the line BB of FIG.
【図３】図３は図１の矢視線Ｃ−Ｃによる横断面図であ
る。3 is a cross-sectional view taken along the line CC of FIG.
【図４】図４はＣＯ２レーザー溶接による場合の説明図
である。FIG. 4 is an explanatory diagram in the case of CO 2 laser welding.
【図５】図５はＹＡＧレーザー溶接による場合の説明図
である。FIG. 5 is an explanatory diagram in the case of YAG laser welding.
１０ ヘッド本体 １０Ｕ ヒール側受部 １２ フェースプレート Ｆ フェース面 ＬＨ ヒール側接合境界ライン 10 head body 10U heel side receiving part 12 face plate F face surface LH Heel side joint boundary line
Claims (3)
ートを溶接したアイアンヘッドにおいて、フェースプレ
ートのヒール側縁部とヘッド本体との接合境界ラインは
ヘッド正面のヒール寄りの位置にあり、この部位はヘッ
ドの上又は下から見た状態で凹形状であり、曲率の関係
でゴルフボールが殆ど当ることのできない位置にあり、
この接合境界ラインはレーザー溶接によって溶接されて
いることを特徴とするアイアンヘッド。1. In an iron head in which a metal face plate is welded to a metal head body, a joining boundary line between the heel side edge portion of the face plate and the head body is located near the heel in front of the head. Is a concave shape when viewed from above or below, it is in a position where the golf ball can hardly hit due to the relationship of curvature,
An iron head characterized in that the joining boundary line is welded by laser welding.
との接合境界ラインは、フェースプレートのヒール側縁
部とヘッド本体との接合境界ラインを除き、ヘッドの正
面ではなく外周部にある請求項１記載のアイアンヘッ
ド。2. The joint boundary line between the peripheral edge of the face plate and the head main body is not on the front surface of the head but on the outer peripheral portion except for the joint boundary line between the heel side edge portion of the face plate and the head main body. Iron head.
受けるヘッド本体の受部の肉厚がフェースプレートの肉
厚以上である請求項１又は２記載のアイアンヘッド。3. The iron head according to claim 1, wherein the thickness of the receiving portion of the head main body that receives the heel side edge portion of the face plate is equal to or greater than the thickness of the face plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002145557A JP4020299B2 (en) | 2002-05-21 | 2002-05-21 | Iron head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002145557A JP4020299B2 (en) | 2002-05-21 | 2002-05-21 | Iron head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003334267A true JP2003334267A (en) | 2003-11-25 |
| JP4020299B2 JP4020299B2 (en) | 2007-12-12 |
Family
ID=29704808
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002145557A Expired - Fee Related JP4020299B2 (en) | 2002-05-21 | 2002-05-21 | Iron head |
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| Country | Link |
|---|---|
| JP (1) | JP4020299B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7938738B2 (en) | 2006-09-01 | 2011-05-10 | Cobra Golf Incorporated | Iron golf club with improved mass properties and vibration damping |
| US8951144B2 (en) | 2006-09-01 | 2015-02-10 | Cobra Golf Incorporated | Colorized damping indicators for customized golf club heads |
| US10744377B1 (en) * | 2019-05-02 | 2020-08-18 | Chi-Shun CHUANG | Club head conducive to enhancement of resilience |
-
2002
- 2002-05-21 JP JP2002145557A patent/JP4020299B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7938738B2 (en) | 2006-09-01 | 2011-05-10 | Cobra Golf Incorporated | Iron golf club with improved mass properties and vibration damping |
| US8152651B2 (en) | 2006-09-01 | 2012-04-10 | Cobra Golf Incorporated | Iron golf club with improved mass properties and vibration damping |
| US8951144B2 (en) | 2006-09-01 | 2015-02-10 | Cobra Golf Incorporated | Colorized damping indicators for customized golf club heads |
| US10744377B1 (en) * | 2019-05-02 | 2020-08-18 | Chi-Shun CHUANG | Club head conducive to enhancement of resilience |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4020299B2 (en) | 2007-12-12 |
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