WO2007010588A1 - Tete de club de golf - Google Patents

Tete de club de golf Download PDF

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Publication number
WO2007010588A1
WO2007010588A1 PCT/JP2005/013142 JP2005013142W WO2007010588A1 WO 2007010588 A1 WO2007010588 A1 WO 2007010588A1 JP 2005013142 W JP2005013142 W JP 2005013142W WO 2007010588 A1 WO2007010588 A1 WO 2007010588A1
Authority
WO
WIPO (PCT)
Prior art keywords
golf club
face
club head
face portion
laminated structure
Prior art date
Application number
PCT/JP2005/013142
Other languages
English (en)
Japanese (ja)
Inventor
Norihiko Nakahara
Masahiko Miyamoto
Original Assignee
The Yokohama Rubber Co., Ltd.
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
Application filed by The Yokohama Rubber Co., Ltd. filed Critical The Yokohama Rubber Co., Ltd.
Priority to PCT/JP2005/013142 priority Critical patent/WO2007010588A1/fr
Publication of WO2007010588A1 publication Critical patent/WO2007010588A1/fr

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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
    • A63B53/0416—Heads having an impact surface provided by a face insert
    • A63B53/042—Heads having an impact surface provided by a face insert the face insert consisting of a material different from that of the head
    • A63B53/0425—Heads having an impact surface provided by a face insert the face insert consisting of a material different from that of the head the face insert comprising two or more different materials
    • 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
    • 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
    • A63B53/047—Heads iron-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • A63B2209/023—Long, oriented fibres, e.g. wound filaments, woven fabrics, mats

Definitions

  • the present invention relates to a golf club head having a face portion in which fiber reinforced plastic layers containing reinforcing fibers having different orientation angles are laminated, and maintains the hitting performance such as the flight distance and strength of the golf ball.
  • the present invention relates to a golf club head in which the mass of the face portion is reduced and the hit feeling due to hitting sound is improved at the time of hitting.
  • the surface of the face is increased by increasing the number of reinforcing fibers or by laminating fibers with high elastic modulus toward the toe and heel directions which are the lateral directions of the face surface.
  • a golf club head made of a composite material having a face portion with a higher rigidity in the lateral direction in the toe and heel directions than in the longitudinal direction in the crown and sole directions of the golf club has been proposed (for example, Patent Literature 1 and Patent Document 2.) 0
  • Patent Document 1 Japanese Unexamined Patent Application Publication No. 2002-17911
  • Patent Document 2 Japanese Utility Model Publication No. 05-7261
  • the golf club head described in Patent Document 1 has a composite face in which a metal layer and a reinforcing fiber plastic layer are combined and laminated. In consideration of the above, it does not improve the resilience of the golf club head while maintaining the strength of the face when the golf ball is hit.
  • the golf club head described in Patent Document 2 has a horizontal fiber arrangement density higher than a vertical fiber arrangement density, but it is durable considering the height and width of the face surface. To improve resilience while maintaining sexuality There is no.
  • An object of the present invention is to solve the above-described prior art, and is a golf club head having a composite face including a fiber-reinforced plastic layer including reinforcing fibers having different orientation angles, and the durability of the golf club head
  • An object of the present invention is to provide a Gonoref club head capable of improving resilience while maintaining (strength). Means for solving the problem
  • the present invention provides a golf club head having a face portion including a face surface for hitting a golf ball, the face portion including reinforcing fibers having different orientation angles.
  • a fiber reinforced plastic layer wherein the face surface has a width in the toe and heal direction that is greater than the height of the face surface in the crown and sole direction, and the fiber Of the reinforcing fibers contained in the reinforced plastic layer, the orientation angle includes 0 ° when the direction of the ground contact surface when the golf club is placed at the normal address position is the reference direction (0 °) —55 ° to Mass of reinforcing fibers in the range of + 55 ° W force
  • the orientation angle of the golf club head is larger than the weight w of the reinforcing fibers in the range of + 55 ° to 55 °, including ⁇ 90 °. provide.
  • the orientation angle of the reinforcing fibers included in the fiber-reinforced plastic layer is The mass W of the reinforcing fiber in the range of 55 ° to + 55 ° including 0 °, and the orientation angle is ⁇ 90. Including +55. ⁇ One 55.
  • the mass of the reinforcing fiber in the range of W force It is preferable that the following formula is set according to the width L of the face surface and the height L of the face surface of the golf club head.
  • the mass w of the reinforcing fiber and the mass W of the reinforcing fiber are determined as a golf club.
  • a Gonoref club head can also be designed using a method of setting the width L and the height L of the face surface of the head.
  • the present invention is a golf club head having a face portion including a face surface for hitting a golf ball, wherein the face portion has a fiber-reinforced plastic layer including reinforcing fibers having different orientation angles.
  • the length is in the toe and heel directions.
  • the width of the face surface is greater than the height of the face surface, which is the length in the crown and sole directions.
  • the direction of the ground contact surface when the golf club is placed at the normal address position is the reference direction (0 °). Bending modulus in 0 ° direction E force Bending in ⁇ 90 ° direction
  • a golf club head characterized by an elastic modulus greater than E.
  • the flexural modulus E of the face in the 90 ° direction E, the width L of the face surface of the golf club head, and the height L of the face surface shall be set to satisfy the following equation: h
  • the bending elastic modulus E and the bending elastic modulus E are set to the golf club head frame.
  • the head can also be designed.
  • the face portion is preferably formed of a laminated structure in which at least two metal layers and the reinforcing fiber plastic layer are laminated.
  • the thickness of the metal layer is preferably 0.1 to 2 Omm.
  • the metal layers to be laminated are two or more layers, and the number of laminated structures is ten or less.
  • the surface opposite to the face surface for hitting the golf ball is preferably a surface of the reinforcing fiber plastic layer.
  • a face surface for hitting a golf ball is a surface of a metal layer.
  • the specific gravity of the material in the center part of the face part is preferably 1.8 to 4.5.
  • the thickness at the center part of the face part is preferably 2.0 to 5. Omm.
  • the metal layer and the fiber reinforced plastic layer are bonded with a resin film or an adhesive having a thickness of 0.02 to 1. Omm.
  • the flexural modulus of the face portion is 30 to 150 GPa.
  • the face portion of the golf club head includes a fiber reinforced plastic layer having different orientation angles of reinforcing fibers, and the mass of the reinforcing fibers in the fiber reinforced plastic is adjusted according to the orientation angle. . Further, the flexural modulus of the face portion is adjusted according to the height and width of the face surface. As a result, resilience performance can be improved while maintaining durability.
  • FIG. 1 is an exploded perspective view showing a golf club according to a first embodiment of the present invention.
  • FIG. 2 is a front view of the golf club head shown in FIG.
  • FIG. 3 is a sectional view taken along line AA in FIG.
  • FIG. 4 is a partially enlarged view of the foot portion shown in FIG.
  • FIG. 5 is a view for explaining the orientation angle of the fiber reinforced resin layer in the face portion of the golf club head shown in FIG. 1.
  • FIG. 6 is a diagram for explaining a face width and a face height.
  • FIG. 7 is a diagram for explaining a face width and a face height.
  • FIG. 8 is a diagram showing a spectrum waveform of a hitting sound of a golf club head whose face part is made of metal.
  • FIG. 9 is a diagram showing a spectrum waveform of a hitting sound of a golf club head whose face portion is made of FRP.
  • FIG. 10 is a diagram showing a spectrum waveform of a hitting sound of a golf club head in which a material of a face portion is constituted by a laminated structure of an alloy layer and an FRP layer.
  • FIG. 11 is a front view showing a golf club according to a second embodiment of the present invention.
  • FIG. 12 is a sectional view taken along line BB in FIG.
  • FIG. 13 (a) is a diagram for explaining the face width and face height, and (b) is a diagram for explaining the orientation angle of the fiber reinforced resin contained in the FRP layer.
  • FIG. 1 is an exploded perspective view of a golf club using the golf club according to the first embodiment of the present invention.
  • FIG. 2 is a front view of the golf club head shown in FIG.
  • the golf club 10 has a golf club head 20 and a golf club shaft 40.
  • the golf club head 20 has a face portion 22, a sole portion 24, a crown portion 26, a side wall portion 28, and a hosel portion 30.
  • the face part 22, the sole part 24, the crown part 26, and the side wall part 28 are each formed of a plate-like member, and these members are joined together to form an outer shell structure. Is configured.
  • the hosel portion 30 is for fixing the golf club shaft 40 to the golf club head 20 and is provided in the crown portion 26.
  • the hosel portion 30 is provided with an opening 32 into which the golf club shaft 40 is inserted.
  • the golf club shaft 40 is fixed to the golf club head 20 through a socket 42.
  • the socket 42 is provided with an opening 44 through which the golf club shaft 40 can be passed.
  • the face portion 22 has a surface that becomes a face surface 23 for hitting a golf ball.
  • the face portion 22 has a laminated structure in which a metal layer and a fiber reinforced plastic layer (hereinafter referred to as FRP layer) are laminated. This laminated structure will be described in detail later.
  • the outermost surface of the striking portion of the face surface 23 that is in direct contact with the golf ball is constituted by the metal layer 50.
  • the toe ⁇ side force is also formed in this metal layer in parallel to the heel
  • the direction facing the heel j8 side from the toe ⁇ side is referred to as the horizontal direction H, and when the face portion 22 is set up vertically, the sole portion 24 side force is also directed toward the crown portion 26 side.
  • the direction perpendicular to the horizontal direction H is called the vertical direction V.
  • the length L force in the vertical direction V is formed with a face portion 22 that is shorter than the length L in the horizontal direction H. Therefore, gol on the face 22
  • the face portion 22 takes the bending elastic modulus E of the face portion in the vertical direction V into the horizontal direction in consideration of the relationship between the length L in the vertical direction V and the length L and h in the horizontal direction H (L> L). h
  • the member used for the face portion 22 has the orientation direction of the reinforcing fibers of the FRP layer and the laminated structure according to the shape of the face portion 22. Determine the number of stacks.
  • the length L in the vertical direction V and the length L in the horizontal direction H are used as indices representing the shape.
  • FIGS. 3 to 5 a laminated structure constituting a part of the face portion 22 will be described.
  • 3 is a cross-sectional view taken along line AA in FIG. 1
  • FIG. 4 is an enlarged view of a portion of the face portion shown in FIG.
  • FIG. 5 is a diagram illustrating the orientation angle of the fiber reinforced resin contained in the FRP layer.
  • the laminated structure 52 is a composite structure that collectively shows a laminate of a metal layer and an FRP layer, and constitutes a part of the face portion 22.
  • the laminated structure 52 has a metal layer 50 on the face surface 23 that is a surface for hitting a golf ball. Thereafter, a total of four metal layers and FRP layers are laminated in the order of FRP layer 60, metal layer 62, and FRP layer 60.
  • the thickness in the vicinity of the central portion (face surface gravity center position) in the laminated structure 52 of the face portion 22 is preferably 2.0 to 4.5 mm from the viewpoint of resilience.
  • the specific gravity of the material in the vicinity of the center portion of the laminated structure 52 is preferably 1.8 to 5.0 from the viewpoint of lightness of the face portion.
  • the number of stacked layers of the stacked structure is not limited to this and can be arbitrarily set, but is preferably 10 layers or less from the viewpoint of cost and complexity of the manufacturing process.
  • the face surface 23 may be formed by a force FRP layer in which the face surface 23 is formed by a metal layer. Furthermore, the face (striking surface) may be made of metal and the back side may be made of FR P to form the face surface 23! /.
  • the reinforcing fiber contributing to the improvement of the flexural modulus E of the face portion in the vertical direction V and the direction of the flexural modulus E of the face portion in the horizontal direction H
  • the reinforcing fibers having an orientation angle in the range of 55 ° to + 55 °, including ⁇ 0 °
  • the bending elastic modulus E of the face portion in the vertical direction V is considered to contribute to the improvement of the bending elastic modulus E of the face portion, and the bending elastic modulus E of the face portion can be adjusted using the mass W of the reinforcing fiber whose orientation angle is within this range.
  • the reinforcing fibers having an orientation angle in the range of + 55 ° to 55 ° including ⁇ 90 ° contribute to an improvement in the flexural modulus E of the face portion in the vertical direction V.
  • the flexural modulus E of the face portion can be adjusted by using the mass W of the reinforcing fiber that is considered and is in the range of the orientation angular force.
  • the rebound of the golf club head is improved while maintaining sufficient strength as the face portion 22 as shown in Examples a and b described later. I found out that I can make it.
  • the flexural modulus E of the face part in the vertical direction V and the flexural modulus E of the face part in the horizontal direction H may be directly determined! /.
  • Mass of reinforcing fiber according to length L in vertical direction V and length L in horizontal direction H
  • W and the mass of the reinforcing fiber Determine the W and the reinforcing fiber contained in the fiber-reinforced plastic layer.
  • the resilience of the face portion 22 can be improved while maintaining sufficient strength as the face portion 22, as shown in Examples a and b described later.
  • the orientation angle is such that the golf club is set at a normal address position, and the direction of the reference plane A is the reference direction (0 °).
  • To install a golf club at a normal address position means to install the golf club head 20 at a line angle and so that the shaft axis and the leading edge are parallel to each other. Installation according to the lie angle is the difference between the round of the sole surface and the reference surface A.
  • the face height L in the vertical direction V of the face surface is the edge A force frame located at the uppermost position of the face surface 23 when installed in the address position.
  • the distance is substituted as the face height L, and the position A on the heel side of the golf club head 20 located 22.23 mm above the reference plane A from the end A located on the most toe side of the golf club head 20 Up to the component parallel to the reference plane A and the face plane 23
  • the distance may be the face width L.
  • the face portion of the golf club head is configured by a stacked structure of a metal layer and an FRP layer, so that the best hitting sound for the golfer can be obtained.
  • the relationship between the material of the face part of the golf club head and the hitting sound will be described with reference to FIGS.
  • FIG. 8 is a graph showing the frequency distribution of the hitting sound of a golf club head in which the sound pressure is plotted on the vertical axis and the frequency is plotted on the horizontal axis, and the face portion material is metal.
  • FIG. 9 is a graph showing the frequency distribution of the hitting sound of a golf club head in which the sound pressure is plotted on the vertical axis and the frequency is plotted on the horizontal axis, and the material of the face portion is FRP.
  • the hitting sound is the largest factor that controls the hit feeling. For this reason, the present inventors have found that it is most effective to improve the hitting sound in order to improve the hit feeling.
  • the golf club head according to the present invention can be improved by forming the face portion with a laminated structure of the metal layer and the FRP layer so that the hit feeling is not hard and soft. They thought.
  • the impact sound cannot be adjusted by simply pasting the metal layer and the FRP layer together. Further, regarding the laminated structure used for the face portion, the laminated structure of the metal layer and the FRP layer, the number of laminated layers, The present inventors have found that the best impact sound for golfers can be obtained by adjusting the laminated thickness and the like, as shown in the examples described later.
  • FIG. 10 shows the impact sound of a golf club head in which the vertical axis represents sound pressure and the horizontal axis represents frequency, and the face portion is composed of a six-layer laminated structure of a Ti alloy layer and an FRP layer. It is a graph which shows frequency distribution of.
  • the striking part surface
  • the back face is made of an FRP layer.
  • a total of four alloy layers (thickness 0.13 mm) and FRP layers were laminated.
  • the face part has a total thickness of 3.2 mm.
  • the peak level is lower than P, P, P
  • the best hitting sound for the golfer can be obtained by configuring the face portion of the golf club head with a laminated structure of the metal layer and the FRP layer.
  • the metal layer examples include stainless steel, maraging steel, iron, aluminum, titanium, titanium alloy, copper, brass, nickel, nichrome, tin, lead, magnesium, gold, silver, platinum, and various other metals and What is comprised with an alloy etc. is illustrated.
  • NSSHT1770 trade name (composition: Fe—0.04C-1.5Si-0.3Mn—0.03P—0.004S—7) manufactured by Nisshin Steel Co., Ltd. 2Ni— 14.7Cr—0.7Cu-0, 4Ti 0.009N)
  • Examples of the maraging steel described above include YAG250 (trade name (composition: Fe—18Ni—8Co—5Mo—0.4Ti—0.1A1)), YAG300 (trade name (composition: Fe —) manufactured by Hitachi Metals, Ltd. 18Ni—9Co—5Mo—0.9 Ti—0.1A1)) and YAG350 (trade name (composition: Fe—18Ni—12Co—4Mo—1.7 Ti—0.1A1)).
  • the FRP layer of the present embodiment is obtained by reinforcing matrix resin with reinforcing fibers.
  • the reinforcing fibers include inorganic fibers such as carbon fibers, boron fibers, glass fibers, alumina fibers, silicon carbide fibers, and silicon nitride fibers, aramid fibers, polyarylate fibers, polyethylene fibers, and polyester fibers.
  • Illustrative are organic fibers or metal fibers such as titanium fibers, amorphous fibers, and stainless steel fibers.
  • the reinforcing fiber a plurality of types may be selected from those exemplified above and used as the reinforcing fiber.
  • the orientation of the reinforcing fibers may be used in the state of a force or a cross (woven fabric) arranged in a predetermined direction. Furthermore, even if these reinforcing fibers or cloths are provided in one or more layers (layers), in the present invention, they are defined as one FRP layer.
  • the flexural modulus of the face portion in the horizontal direction H and the vertical direction V can be adjusted by the orientation of the reinforcing fibers as described above.
  • matrix resins include thermosetting matrix resins such as epoxy resins, unsaturated polyester resins, polyurethane resins, diallyl phthalate resins, and phenol resins.
  • epoxy resin is preferred.
  • matrix resins include glycidyl ether type epoxy resins (bisphenol A, F, S type epoxy resins, novolac type epoxy resins, brominated bisphenol A type epoxy resins), ring formula Luminous epoxy epoxies, glycidinoresestenolic epoxies, glycidylamine epoxies such as tetraglycidinoresinaminodiphenylmethane or triglycidyl p-aminophenol, and heterocyclic rings A formula epoxy resin is illustrated. Furthermore, as the matrix resin, one or more selected from these various epoxy resins can be used. As the matrix resin in the present embodiment, bisphenol A, F, S glycidylamine-based epoxy resin is particularly suitable.
  • an amine curing agent such as dicyandiamide (DICY), diaminodiphenylsulfone (DDS), diaminodiphenylmethane (DDM); HHPA), methylhexahydrophthalic anhydride (MHHPA) and the like.
  • DIY dicyandiamide
  • DDS diaminodiphenylsulfone
  • DDM diaminodiphenylmethane
  • HHPA methylhexahydrophthalic anhydride
  • an amine curing agent can be particularly preferably used.
  • a pre-predder can also be used for the FRP layer.
  • this pre-predder for example, P3251S-15 (trade name) UD pre-predder made by Torayen soil or F6343B-05P (trade name) cross-prepredder made by Torayen soil is exemplified.
  • the laminated structure constituting the face portion 22 in the golf club head 10 of the present embodiment may be formed by providing a resin film at the boundary between the metal layer and the FRP layer or by applying an adhesive. Good.
  • the thickness of the adhesive layer of the adhesive is preferably 0.02 to: L Omm.
  • Examples of the resin film include polyurethane resin, nylon resin, modified nylon resin, polyethylene terephthalate resin, polyvinyl chloride resin, polycarbonate resin, polysalt vinylidene resin, resin Examples thereof include thermoplastic resin films such as chilled cellulose resin and cellulose acetate resin.
  • a resin film having high compatibility with the matrix resin of the pre-preda it is preferable to use a resin film having high compatibility with the matrix resin of the pre-preda.
  • a resin film having high compatibility with the matrix resin of the pre-preda for example, when an epoxy resin is used for the matrix resin, a polyurethane resin, a modified nylon resin film, etc. are suitable as the resin film.
  • the thickness of the resin film is preferably 0.02 to: L Omm.
  • FIG. 11 is a front view showing a golf club according to the second embodiment of the present invention.
  • 12 is a cross-sectional view taken along the line BB in FIG.
  • the first implementation The same components as those of the golf club head of the embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
  • the golf club 12 has the golf club head 21 and the golf club shaft 40.
  • the golf club head is different from that of the first embodiment, and other configurations are the same. This is the same as the golf club 10 of the first embodiment.
  • the golf club 12 is a golf club in which a golf club head 21 has a face portion 22, a sole portion 24, an upper portion 27, and a hosel portion 30, and is generally called an iron.
  • the face portion 22 has a laminated structure 52 formed by laminating a metal layer and an FRP layer, and the sole portion 24 and the upper portion 27 are Also, metal materials will be strong.
  • the face part 22, the sole part 24, and the upper part 27 are joined together to form a non-hollow structure.
  • the face surface 23 of the face portion 22 is formed in parallel with, for example, three score line L forces extending in the horizontal direction H from the toe ⁇ side to the heel j8 side.
  • the laminated structure 52 of the face part 22 is a composite structure in which a metal layer and an FRP layer are laminated, and constitutes a part of the face part 22.
  • a metal layer 50 is formed on a face surface 23 that is a surface for hitting a golf ball.
  • an FRP layer and a metal layer are appropriately laminated.
  • the number of stacked layers 52 can be set without limitation, and the description thereof is omitted here.
  • Fig. 13 (a) shows the length L in the vertical direction V and the length L in the horizontal direction H of the face surface.
  • FIG. 13 (b) is a diagram for explaining the orientation angle of the reinforcing fibers contained in the FRP layer.
  • the face height L in the vertical direction V of the face surface is the highest on the face surface 23 when the score line force is located at the uppermost position of the face surface 23 in the state where it is installed at the normal address position.
  • To reference plane A up to the edge located below
  • the face width L in the horizontal direction H of the face surface is the scorer located closest to the toe side of the face surface 23.
  • the orientation angle is such that the golf club is set at a normal address position, and the direction of the reference plane A is the reference direction (0 °).
  • the mass W of the reinforcing fiber and the mass W of the reinforcing fiber are determined, and the orientation of the reinforcing fiber included in the fiber-reinforced plastic layer is determined.
  • the direction it is possible to improve the resilience of the golf club head while maintaining sufficient strength as the face portion 22.
  • the flexural modulus E of the face portion in the vertical direction V and the horizontal elasticity V in the vertical direction V are directly You can also determine the flexural modulus E of the face in direction H! /.
  • the mass of the reinforcing fiber or the bending elastic modulus is determined according to the length L in the vertical direction V and the length L in the horizontal direction H.
  • the golf club head of the present invention will be specifically described in comparison with examples of the present invention and conventional examples.
  • Example a the conventional examples shown in Table 1 below and Examples 1 to 16 were evaluated using the feel, strength, resilience, and flight distance shown in Table 3 below as evaluation items.
  • Example a a gob for TRX-DUO M40 (trade name) manufactured by Yokohama Rubber Co., Ltd. was produced and evaluated. This golf club is 45 inches long.
  • Example a a TRX (trade name) ball manufactured by Yokohama Rubber Co., Ltd. was used as the golf ball unless otherwise specified.
  • the conventional example is a golf club head in which only a titanium alloy is used.
  • Examples 1 to 16 are golf club heads including a CFR P layer in which reinforcing fibers are carbon fibers.
  • Example 1 4 6.0 46 120 4.0 8.0 69 99
  • Example 1 3 Ti alloy 2.5 Ti alloy 0.13 1 4 Yes CFRP 3.1 6.1 42 125 4.8 9.6 83 92
  • Example 1 5 SUS alloy 2.2 SUS alloy 0.13 1 4 Yes CFRP 4.8 4.6 60 65 3.2 6.4 1 19 143
  • composition of the “Ti alloy” shown in the “Face surface” column of Table 1 is Ti-4.5Al-3V-2Fe—
  • composition of “Ti alloy” shown in the “Other than face surface” column is Ti-15V.
  • CFRP has a reinforced fiber Young's modulus of 24 tons and a pre-preparator weight of 298g.
  • the "specific gravity of the face part”, "thickness of the face part”, and “face part bending elastic modulus” are sampled so that there is always a region having a radius of 15 mm centered on the center position of the face surface. This is the value when sampling.
  • the method for measuring the center position of the face surface was determined by a center measuring instrument having a support portion for supporting a center measurement object (golf club head) at the top.
  • the central measuring instrument is a measuring object whose support part supports the measuring object in equilibrium. You can know the position of an object. That is, the center measuring method is to find an equilibrium position that does not fall even if the golf club head is placed on the support and released.
  • Table 3 below shows the evaluation results for each of the evaluation items described above.
  • the strength, resilience, and flight distance are expressed as relative values based on the conventional example as a reference (100). The higher the value, the better the evaluation item.
  • the total score is the sum of evaluation values for strength, rebound, and flight distance, and indicates the overall evaluation value for each golf club head. This total score is expressed as a relative value with the conventional example as the standard (300).
  • the flight distance was evaluated using a golf club equipped with the golf club heads of the examples and comparative examples, and a total of 100 amateur golfers and professional golfers with head speeds ranging from 34 m / sec to 50 m / sec. This is the average value obtained by hitting 10 balls for each person.
  • Evaluation of the hit feeling was carried out by attaching the golf club heads of the conventional examples and Examples 1 to 16 to a total of 100 amateur golfers and professional golfers with a head speed in the range of 34 mZ seconds to 50 mZ seconds. Each golf club was tested and evaluated.
  • the evaluation method was to give each person a feel of hitting “too much metal sound” (3-5), “just right” (-2-2), and “too much metal sound” (1-3-5). The score was given, the average value was obtained, and the hit feeling of each example and each comparative example was evaluated with a numerical value of 5-5. As a numerical value, ⁇ 2 to 2 is a good range for the hit feeling.
  • Examples 1 to 16 were good in that the total score was higher than that of the conventional example.
  • the hit feeling with the highest total score is “just good” ( ⁇ 1), so it is semi-IJ.
  • the golf club of the present invention will be specifically described in comparison with other examples of the present invention and conventional examples.
  • Example b the conventional examples and Examples 17 to 27 shown in Table 4 below were evaluated in the same manner as in Example a using hit feeling, strength, resilience, and flight distance as evaluation items. It was.
  • Example a a golf club is manufactured using a golf club head of a wood golf club
  • Example b a golf club was manufactured by attaching a golf club shaft for TRX-DUO M40 (trade name) manufactured by Yokohama Rubber Co., Ltd. to the golf club head of an iron golf club. An evaluation test was conducted.
  • composition of “Ti alloy” shown in the “Face surface” column of Table 4 is Ti—4.5Al-3V-2Fe—
  • composition of “Ti alloy” shown in the “Other than face surface” column is Ti-15V.
  • CFRP has a fiber Young's modulus of 24 ton type, a pre-preparation basis weight of 298 gZm 2 , a fiber basis weight of 200 gZm 2 and a resin basis weight of 98 gZm 2 and a thickness of 0. 191mm.
  • the method for measuring the center position of the face surface is the same as in Example a .
  • Example 21 -1 1 15 125 125 365
  • Example 22 -1 1 15 125 125 365
  • Evaluation of strength, resilience, and flight distance is expressed as a relative numerical value based on the conventional example as a standard (100), and the higher the numerical value, the better the evaluation item.
  • the total score is the sum of the evaluation values of strength, rebound, and flight distance, and indicates the overall evaluation value of each golf club head. This total score is expressed as a relative value using the conventional example as the standard (300).
  • Example a The description is omitted. Further, the hit feeling is also measured and evaluated in the same manner as in Example a, and the description is omitted.
  • the hit feeling is “just good” ( ⁇ 2 to 2), and it can be seen that the hit feeling is good.
  • the face part of the golf club head in the present invention includes fiber reinforced plastic layers having different reinforcing fiber orientation angles, and is adjusted according to the mass force orientation angle of the reinforcing fibers in the fiber reinforced plastic. Further, the flexural modulus of the face portion is adjusted according to the height and width of the face surface. Thereby, it is possible to provide a golf club capable of improving the resilience performance while maintaining the strength of the golf club head.

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  • 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 concerne une tête de club de golf, comprenant une partie faciale ayant une couche de plastique renforcée de fibres comprenant des fibres renforcées avec des angles d'orientation différents. La largeur de la face de la partie faciale dans le sens de la pointe et du talon est supérieure à la hauteur de la face dans le sens de la couronne et de la semelle. La masse Wh des fibres renforcées parmi les fibres renforcées de fibres incluses dans la couche de plastique renforcée de fibres dans la fourchette allant de -55° à +55° y compris 0° pour l'angle d'orientation lorsque la direction de la face de contact avec le sol d'un club de golf dans une position d'adresse normale, suit une direction de référence (0°), est supérieure à la masse WV des fibres renforcées dans la fourchette allant de +55° à -55° y compris ±90° pour l'angle d'orientation. Ainsi, on peut obtenir un club de golf capable d'augmenter la répulsion tout en préservant la durabilité (résistance) de la tête de club de golf.
PCT/JP2005/013142 2005-07-15 2005-07-15 Tete de club de golf WO2007010588A1 (fr)

Priority Applications (1)

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PCT/JP2005/013142 WO2007010588A1 (fr) 2005-07-15 2005-07-15 Tete de club de golf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/013142 WO2007010588A1 (fr) 2005-07-15 2005-07-15 Tete de club de golf

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WO2007010588A1 true WO2007010588A1 (fr) 2007-01-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019144024A1 (fr) * 2018-01-19 2019-07-25 Karsten Manufacturing Corporation Têtes de club de golf comprenant un matériau composite thermoplastique
WO2019144027A1 (fr) * 2018-01-19 2019-07-25 Karsten Manufacturing Corporation Tête de club de golf en matériau mixte

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002017911A (ja) * 2000-07-04 2002-01-22 Nirai Kk Ｃｆｒｐなどの複合材製ゴルフクラブのヘッド
JP2005095244A (ja) * 2003-09-22 2005-04-14 Yokohama Rubber Co Ltd:The ゴルフクラブヘッドおよびゴルフクラブ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002017911A (ja) * 2000-07-04 2002-01-22 Nirai Kk Ｃｆｒｐなどの複合材製ゴルフクラブのヘッド
JP2005095244A (ja) * 2003-09-22 2005-04-14 Yokohama Rubber Co Ltd:The ゴルフクラブヘッドおよびゴルフクラブ

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019144024A1 (fr) * 2018-01-19 2019-07-25 Karsten Manufacturing Corporation Têtes de club de golf comprenant un matériau composite thermoplastique
WO2019144027A1 (fr) * 2018-01-19 2019-07-25 Karsten Manufacturing Corporation Tête de club de golf en matériau mixte
GB2583862A (en) * 2018-01-19 2020-11-11 Karsten Mfg Corp Mixed material golf club head
JP2021511149A (ja) * 2018-01-19 2021-05-06 カーステン マニュファクチュアリング コーポレーション 混合材料のゴルフクラブヘッド
JP2021511150A (ja) * 2018-01-19 2021-05-06 カーステン マニュファクチュアリング コーポレーション 熱可塑性複合材料を含むゴルフクラブヘッド
GB2583862B (en) * 2018-01-19 2022-08-10 Karsten Mfg Corp Mixed material golf club head
JP7244528B2 (ja) 2018-01-19 2023-03-22 カーステン マニュファクチュアリング コーポレーション 熱可塑性複合材料を含むゴルフクラブヘッド
JP7293240B2 (ja) 2018-01-19 2023-06-19 カーステン マニュファクチュアリング コーポレーション 混合材料のゴルフクラブヘッド

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