WO2000071210A1 - Tete de club de golf - Google Patents

Tete de club de golf Download PDF

Info

Publication number
WO2000071210A1
WO2000071210A1 PCT/JP1999/002609 JP9902609W WO0071210A1 WO 2000071210 A1 WO2000071210 A1 WO 2000071210A1 JP 9902609 W JP9902609 W JP 9902609W WO 0071210 A1 WO0071210 A1 WO 0071210A1
Authority
WO
WIPO (PCT)
Prior art keywords
golf club
club head
pccp
head
face
Prior art date
Application number
PCT/JP1999/002609
Other languages
English (en)
Japanese (ja)
Inventor
Koryo Miura
Takeshi Naruo
Koji Sakai
Yoshihiro Fujikawa
Original Assignee
Mizuno Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP36411697A priority Critical patent/JP3280299B2/ja
Priority claimed from JP36411697A external-priority patent/JP3280299B2/ja
Application filed by Mizuno Corporation filed Critical Mizuno Corporation
Priority to US09/463,695 priority patent/US6776725B1/en
Priority to PCT/JP1999/002609 priority patent/WO2000071210A1/fr
Publication of WO2000071210A1 publication Critical patent/WO2000071210A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0416—Heads having an impact surface provided by a face insert
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0433—Heads with special sole configurations
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0437—Heads with special crown configurations
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0466—Heads wood-type

Definitions

  • the present invention relates to a configuration of a head for enlarging a metal golf club head having a hollow portion, which is mainly made of metal.
  • the greatest performance requirements of golf clubs are improved flight distance and stable direction. Professionals can always hit the ball at one point on the face of the golf club head, and the swing speed is high, so the ball is long and has good direction. However, since the hit points on the face part are not stable for general golfers, the flight distance does not come out and the directionality is not stable.
  • Japanese Patent Application Laid-Open No. 9-38248 discloses a golf club b head in which a dimple-shaped depression is provided in a face member in order to increase the strength of a simple plate.
  • No. 1,355,776 discloses a golf club head in which the crystal grain size of the material used is adjusted in order to improve the toughness of the material.
  • the golf club head using the above-mentioned conventional improvement method has the following problems.
  • the thickness of the outer shell material constituting the head is considered only in consideration of the impact at the time of hitting the ball. If the heads were to be made thinner, the head could easily be dented by the load applied to the thin part of the head when the heads collided in the caddy bag being transported. In addition, there was not a small possibility that the head would be dented by other slight impacts.
  • the use of a high-strength material as the outer shell material constituting the head has a disadvantage that the usable material is limited because the high-strength material itself is generally expensive.
  • a main object of the present invention is to provide a golf club head having a hollow portion, which has a shell structure capable of thinning without impairing the strength. .
  • the golf club head according to the present invention can provide a thin, large-sized golf club head by increasing the strength by applying a PCCP (pseudo cylindrical concave polyhedron) structure to a golf club head having a hollow portion. Is to try.
  • PCCP quadrature cylindrical concave polyhedron
  • a PCCPP structure in a golf club head having a hollow portion, can be applied to the whole or a part except a face portion.
  • the golf club head of the present invention includes a pad golf club head having a hollow portion to which a PCCP structure is applied.
  • a PCCP structure is applied to such a wood golf club head
  • in a wood golf club head having a hollow portion a face extending from a crown portion to a sole portion through both side portions excluding a back portion.
  • the PCCP structure can be applied continuously so as to go around the head in a direction parallel to the part.
  • a PCC structure can be continuously provided in a direction perpendicular to the face portion, from the crown portion to the sole portion through the back portion.
  • the crown portion and the sole portion may be provided with a Pccp structure on all or a part of the crown portion, or the crown portion alone may be provided with a pccp structure.
  • a structure is employed in which a pair of diamonds arranged in a diamond shape has a cylindrical shape in which the bases of the triangles are valley lines and the hypotenuses are mountain lines.
  • a pair of trapezoids that are adjacent to each other and form a hexagon may have a bottom line serving as a valley line, and an upper base and a hypotenuse may have a mountain line, thereby forming a cylindrical shape. it can.
  • the tops of the valley line and the mountain line are formed, for example, so as to form an obtuse angle or an arc shape.
  • FIG. 1 is a perspective view of a pad golf club head having a PCCPP structure according to a first embodiment of the present invention.
  • FIG. 2A is a perspective view of the pad golf club head having the PCCP structure according to the second embodiment of the present invention as viewed from the sole portion side
  • FIG. 2B is a pad golf club shown in FIG. 2A
  • FIG. 3 is a plan view of the club head as viewed from a crown portion side.
  • FIG. 3A is a perspective view of the head portion of the pad golf club head having the PCCP structure according to the third embodiment of the present invention as viewed from the sole portion side.
  • FIG. 3B is a perspective view of the wood golf club head portion shown in FIG.
  • FIG. 4 is a plan view of the arm as viewed from a crown portion side.
  • FIG. 4A is a perspective view of the head of the golf club head having the PCCP structure according to the fourth embodiment of the present invention as viewed from the sole portion side
  • FIG. 4B is a wood golf club head shown in FIG. 4A
  • FIG. 3 is a plan view as viewed from the crown portion side
  • FIG. 5 is a perspective view of a cylindrical shape having a PCCP structure.
  • 6A to 6D are developed views of a cylindrical shape having a PCC P structure.
  • FIG. 5 is a diagram of a cylindrical shape having a PCCP structure
  • FIGS. 6A to 6D are views showing a developed shape of a cylindrical shape having a PCCP structure.
  • the PCCP structure has a macroscopic shape close to a cylindrical shape, but in fact, a triangle of ⁇ is arranged in a diamond shape by touching the bases of each other (as shown in Fig. 5).
  • the trapezoids of ⁇ or ⁇ ⁇ are arranged side by side to form a hexagon by contacting the bottoms of each other (not shown).
  • the solid line excluding the outer peripheral line represents a “mountain line”, and the dashed line represents a “valley line”.
  • the base 51 of a pair of diamond-shaped triangles becomes a valley line, and the hypotenuse 52 becomes a mountain line.
  • the lower bases 61 of a pair of trapezoids forming a hexagon by connecting the lower bases 61 to each other become a valley line.
  • the upper bottom 62 and the hypotenuse 63 form a mountain line, forming a cylindrical shape.
  • the peaks of the mountain line and the valley line have obtuse angles, but this portion may be configured as an arc.
  • This PCCP structure is made from a simple triangle or trapezoid, and can form a curved surface with an arbitrary curvature by changing the length of each side as shown in FIG. 6A or FIG. 6B. Therefore, the present invention can be applied to a wood golf club head having a slightly distorted cylindrical shape and a hollow iron golf club head having a substantially semicircular back portion.
  • a cylindrical shape with such a PCCP structure is a circle consisting of smooth curved surfaces of the same thickness. Compared with the cylindrical shape, the rigidity and bending strength in the direction of the center axis of the cylinder are higher. Therefore, the thickness of the golf club head having a hollow portion can be designed to be thin without decreasing the strength in the center direction.
  • Table 1 shows a comparison of a cylindrical can with 52 diameters and a height of 104 strokes, made of a conventional cylinder and a PCP structure.
  • the cylindrical can having the PC CP structure used in this experiment has a shape as shown in Fig. 5 and consists of an isosceles triangle of the same shape with a base of 14.85 and a hypotenuse of 10.5.
  • the weight of the whole cylinder is 35.3 g in a normal cylindrical can, while? It can be reduced to 26.Og for a can with a structure, and a weight reduction of about 26% can be achieved.
  • FIG. 1 shows a golf club head 1 having a hollow portion with a crown portion 1.
  • the face part 16 (from the back side in Fig. 1 and not shown) to the saw part 15 through both sides 13 and 14 excluding the back part 12 (Not shown) means that the PCCP structure 2 is applied continuously so as to make a round around the head in a parallel direction.
  • the part with the PCCP structure 2 is the same as the one without the PCCP structure, as compared to the case without the PCCP structure.
  • the thickness of any part of the sole 14 and the sole part 15 can be reduced.
  • the weight of the head golf club itself can be reduced if the volume is the same as the conventional one, and the head can be enlarged if the weight is the same.
  • the strength of the two parts of the PCC P structure, which is thinner than before, is the same as before, so even if the heads collide with each other in the caddy bag being transported, they will be added to the heads. It is no longer possible for the head to be dented by a forcible load.
  • the cylindrical shape with the PCC P structure has a higher bending strength in the direction of the central axis of the cylindrical shape as described above, while the PCC P structure with a triangular component has a direction perpendicular to its continuous bottom.
  • the PCCP structure, in which the components are trapezoidal has the characteristic that the rigidity is low in the direction perpendicular to the continuous upper and lower bases.
  • the PCCP structure can with a triangle as a component, as shown in Fig. 5 used in the experiment in Table 1, can be described in more detail.
  • the bottom side 51 continuous in the circumferential direction is perpendicular to the can,
  • the rigidity decreases in the height direction. This is also evident from the fact that in Table 1, the “frequency in the height direction” of the PCCP can is lower than that of a normal cylindrical can.
  • the face part 16 and the face part 16 reach the socket part 15 through both the side parts 13 and 14 except the crown part 11 and the knock part 12.
  • the PCP structure is continuously applied so as to make a round around the head in a parallel direction, and the base 51 of the triangle, which is a component of the structure, is also parallel to the face 16,
  • the rigidity in the direction perpendicular to the ball portion 16, that is, in the direction from the face portion 16 to the back portion 12 (hitting direction) is reduced, and as a result, the initial speed of the hit ball can be expected to be increased.
  • FIGS. 2A and 2B show a wood golf club head having a hollow portion, in a direction perpendicular to the face portion 16 through the crown portion 11 and the sole portion 15 through the knock portion 12.
  • Fig. 1 shows a case where the PC CP structure 2 is continuously applied.
  • Thickness of PCCP structure 2 crown 1 1, knock 1 2, sole 1 5 Can be made thinner, so that the weight of the head golf club 1 itself can be reduced if the volume is the same as before, and the head can be made larger if the weight is the same. .
  • the bottom 51 of the triangle which is a component of the PCCP structure, is made to be parallel to the fuse portion 16.
  • the rigidity in the direction perpendicular to the face part 16, that is, the direction from the face part 16 to the back part 12 (hitting direction) is reduced, and the initial velocity of the ball is increased. We can expect that.
  • FIGS. 3A and 3B show a structure in which the PCC structure 2 is applied to almost the entire surface of the crown portion 11 and the sole portion 15 of the head 1 of the golf club.
  • the crown portion 11 and the sole portion 15 do not draw a large curved surface unlike the knock portion 12 and the side portions 13 and 14, so that the PCCP structure can be easily applied, and wood golf can be used.
  • the club head 1 is also easy to manufacture.
  • the PCCP structure 2 is applied to the crown portion 11 of the head golf club head 1 having a hollow portion and the face portion 16 of the socket portion 15.
  • the weight of the face portion 16 side can be made lighter than the back portion 12 side of the head.
  • the weight of the crown portion 11 is reduced. Therefore, if the sole portion 15 has the same structure as the conventional one, or if a certain weight is added to the sole portion 15 by an amount corresponding to the lightening of the crown portion 11, the pad golf club head 1 can be formed. The center of gravity can be lowered, so that the ball lifts better when hit with the ball.
  • Example 3 shown in FIGS. 3A and 3B and Example 4 shown in FIGS. 4A and 4B the base 51 of the triangle, which is a component of the PCCP structure, is parallel to the face 16. If this is not the case, the direction is perpendicular to the face portion 16, that is, from the face portion 16 to the back portion, although this is not as large as the embodiment 1 shown in FIG. 1 and the embodiment 2 shown in FIGS. 2A and 2B. It can also be expected that the initial velocity of the hit ball will increase as the stiffness in the direction toward 1 (hit direction) decreases.
  • the position where the PCCP structure 2 is applied can be applied to any part of the pad golf club head 1 except the face portion 16.
  • the thickness of that portion can be reduced, and the weight of the pad golf club head 1 can be reduced.
  • the weight can be adjusted by adjusting the range in which the PCCP structure is used, so that the degree of freedom in design is increased when the head is enlarged.
  • it is easy to adjust the depth of the center of gravity and the position of the center of gravity.
  • the head of the present invention can be manufactured by forging or by forging.
  • a PCCP structure is applied to a part of the golf club head, only the PCCP structure is formed by forging, forging, pressing or the like, and holes other than the PCCP structure are manufactured by a known method.
  • the head can also be manufactured by bonding, welding, fitting, or other methods.
  • the thickness of the outer shell member of the golf club head is reduced in the hollow golf club head where the PC CP structure is applied, as compared with the case where the PCCP structure is not applied. can do. Therefore, the weight of the head itself can be reduced if the volume is the same as the conventional one, and the head can be enlarged if the weight is the same.
  • the strength is the same as before, so even if the heads collide with each other in the caddy bag being transported, the heads will lose the load applied to the heads. There will be no such thing as denting.
  • the PCCP structure can be applied to any part of the golf club head except for the fuse part, and no matter where the PCCP structure is applied, the thickness of that part can be reduced. However, the weight of the golf club head can be reduced.
  • crown and sole portions of wood golf club heads have a large surface area occupying the entire area, and have a smaller curvature than the back and side portions, making them easy to manufacture. It can be made and its effect is great.
  • the weight can be adjusted by adjusting the range in which the PCCPP structure is used, the degree of freedom in design is increased when the size of the head is increased.
  • the weight of the face on the face side can be reduced from that on the back side of the head.
  • the depth of the center of gravity can be deepened and the sweet spot can be expanded.
  • the weight of the crown portion is reduced and the center of gravity can be reduced, so that the ball can be lifted well when hit with the ball.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Golf Clubs (AREA)

Abstract

L'invention se rapporte à une tête de club de golf (1) comportant une partie creuse et présentant une structure PCCP (2) sur la totalité de sa surface ou sur une partie de sa surface, à l'exception de sa partie frontale (16). Cette structure permet de doter la tête du club de golf d'une enveloppe externe permettant de réduire l'épaisseur de sa paroi sans nuire à sa rigidité.
PCT/JP1999/002609 1997-12-16 1999-05-19 Tete de club de golf WO2000071210A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP36411697A JP3280299B2 (ja) 1997-12-16 1997-12-16 ゴルフクラブヘッド
US09/463,695 US6776725B1 (en) 1999-05-19 1999-05-19 Golf club head
PCT/JP1999/002609 WO2000071210A1 (fr) 1997-12-16 1999-05-19 Tete de club de golf

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP36411697A JP3280299B2 (ja) 1997-12-16 1997-12-16 ゴルフクラブヘッド
PCT/JP1999/002609 WO2000071210A1 (fr) 1997-12-16 1999-05-19 Tete de club de golf

Publications (1)

Publication Number Publication Date
WO2000071210A1 true WO2000071210A1 (fr) 2000-11-30

Family

ID=26440129

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/002609 WO2000071210A1 (fr) 1997-12-16 1999-05-19 Tete de club de golf

Country Status (1)

Country Link
WO (1) WO2000071210A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220258017A1 (en) * 2019-07-19 2022-08-18 Aerotec Power Pty Ltd Improved sporting articles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54100127A (en) * 1978-01-24 1979-08-07 Kouriyou Miura Submarine shell structure
JPS59122162U (ja) * 1983-02-07 1984-08-17 株式会社関西ゴルフ ゴルフ用クラブ
JPS60135153U (ja) * 1984-02-20 1985-09-07 内田　峯年 デインプル付ゴルフクラブのウツド
JPS6118167U (ja) * 1984-07-05 1986-02-01 恒示 平野 ダイヤモンドクラブ
JP2561165B2 (ja) * 1990-03-15 1996-12-04 美津濃株式会社 ゴルフクラブ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54100127A (en) * 1978-01-24 1979-08-07 Kouriyou Miura Submarine shell structure
JPS59122162U (ja) * 1983-02-07 1984-08-17 株式会社関西ゴルフ ゴルフ用クラブ
JPS60135153U (ja) * 1984-02-20 1985-09-07 内田　峯年 デインプル付ゴルフクラブのウツド
JPS6118167U (ja) * 1984-07-05 1986-02-01 恒示 平野 ダイヤモンドクラブ
JP2561165B2 (ja) * 1990-03-15 1996-12-04 美津濃株式会社 ゴルフクラブ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220258017A1 (en) * 2019-07-19 2022-08-18 Aerotec Power Pty Ltd Improved sporting articles

Similar Documents

Publication Publication Date Title
US6776725B1 (en) Golf club head
JP4703085B2 (ja) ゴルフクラブ
JP4222034B2 (ja) ゴルフクラブヘッド
JP3006463B2 (ja) ゴルフクラブ
US7481717B2 (en) Golf club head
JP4784027B2 (ja) ゴルフクラブヘッド
US8764579B2 (en) Golf club head
US5395113A (en) Iron type golf club with improved weight configuration
JP3399896B2 (ja) アイアンゴルフクラブヘッド
JP2000254263A (ja) アイアン形ゴルフクラブ
US20080076595A1 (en) Golf club head having complex striking plate structure
US20040219991A1 (en) Laminated face for golf club head and method of manufacture thereof
JPH0938248A (ja) ウッド形ゴルフクラブヘッド
TWI227152B (en) Manufacturing method and device to reduce the thickness of golf club head
JP2007229391A (ja) ゴルフクラブヘッド
JP2002186691A (ja) ゴルフクラブヘッド
GB2444812A (en) Golf club head with central thickened portion at the join between striking face and sole
JP2001286586A (ja) ゴルフクラブヘッド
JP2001058015A (ja) ゴルフクラブヘッド
JP2011072661A (ja) ゴルフクラブ
JP2002136625A (ja) ゴルフクラブ
JP2002186692A (ja) ゴルフクラブヘッド
JP2003260153A (ja) ゴルフクラブヘッド
JP3124540U (ja) ゴルフクラブヘッド
US7131912B1 (en) Golf club head

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 09463695

Country of ref document: US

AK Designated states

Kind code of ref document: A1

Designated state(s): CA CN US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase