JPS59101166A - Golf club head and production thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a golf club head that has a large coefficient of restitution, a good single hit, is uniform, and has high productivity, and a method for manufacturing the same. The present invention relates to a golf club head (r), which includes wood and iron.The present invention relates to a wood head.

Conventionally, the wood head for golf clubs is made of persimmon trees, which is the best wood head.
The one that requires a lot of labor is the 72-inch rice in the inner cone. So I made a plywood head made by gluing H/e and T together.
Although it is used again, because the board is a combination, it is inferior to the striking sound temple and has no advantage to the 7th leg. The head of the base and the head of the shrine are difficult and very difficult to use. All natural wood has 7J humidity control in the manufacturing process.
[R] Besides, the drying process and the shearing process on the cutting blade require a lot of effort. fc absorbs moisture and swells when used! 1-ta l, 10% n was just right.

Therefore, heads made of gold, ultra-fine Dokka Netsumachi plastic resin heads, and ones with a foam core and a fiber-reinforced plastic layer χ on the surface are currently on the market. Matamono Kaisho 52
As described in Publication No. 49131, the proposed golf club head is made of VC fiber reinforced foam.

However, metal heads have the disadvantage that the head shape is small due to the high specific gravity of the metal, giving players anxiety.In addition, birch fiber-reinforced thermoplastic resin heads have the same problem as metal, which has a high specific gravity. , the pressed silk bullet injection rate was low and the reflection coefficient ρ had a shortcoming of 7Ji. On the other hand, as a city talent core, the top phase strengthened Zurasnak layer in the table 1 field? cough ilj tamono V
Well, it's relatively thick due to the flexibility of the elbow, but is it a foam body?
Since the compressive rigidity is low and the coefficient of restitution is not high enough, the head that is made from a navy blue reinforced machined body has a large reversal coefficient and compressive rigidity, or the sweet spot is low because it is a uniform body. moment of inertia or infertility.

Therefore, in order to solve the problems of CIL et al.
(Head 7 for a golf club was made by rolling out a fiber-reinforced glass nac layer. As a manufacturing method for this head structure, a foam core mold with a slightly overturned surface reinforcement was placed in the mold. Satama thermosetting side fat was injected and impregnated with Gokai fibers and then cured.

The head obtained in this way has compression stiffness.

The coefficient of restitution is VC, which is excellent, and the sweet spot is wide, and the moment of inertia of the head is about 9 inches.

The fiber-reinforced core has a smaller δ〈t than the outer shape of the Gorn head.
Riruru is similar to Y bill, but self-description on ``propositions such as the placement of the heart, etc.''
This does not apply if there is.

In other words, the thickness of the sole (8) of the fiber reinforced foam core is increased by 1. The sole part has been shaved and the shape of the upper part has been made VC.Also, the toe and heel are distributed to the sweet spot?
If you want to make it bigger, use the fiber-reinforced toe and heel.
The thickness of the shaved fiber-reinforced Norasnack layer is increased by the thickness.

The specific gravity of the fiber-reinforced soft foam core is smaller than that of the fiber-reinforced zura-snack layer [because the degree of freedom of the soil structure is smaller than that of the fiber-reinforced foam core, and the preferable specific gravity is 162 or less.〇Elasticity of the reed fiber-reinforced foam The effect of the present invention is clearly demonstrated when the rate is 20 [kg/fl]I]11 or more. The elastic modulus of the conventional foam core was 100 kg/- or less.

The fibers used for the fiber-reinforced foam core include glass fibers, Kevlar fibers, polyamide fibers, elastic 4 fibers, and carbon fibers. Carbon fiber is the most effective for low elastic modulus, but it is also effective even when mixed with other fibers or used alone. The coverage rate is 2wt% to 60wt% Katsura 1: The power used) has a remarkable non-inventive effect 0 Also, as a foam, it can be made of Netsucho resin, or it can be thermosetting) Or! β
J plastic 4Tii fats include Al3S side guard and PVC.

AS, nylon, polycarbonate, etc. are used, and the hard curing resin is urethane, epoxy, polyester, etc. Reinforcement of foam The effect of arrogance is full of indefensibility.
L0 Also, the volume of the gas part of the fiber-reinforced core is 10% to 90%
The effect of non-invention is obvious when it falls within the scope of.

Injection molding may be used as a manufacturing method for the ultra-fine reinforced foam, and the hydrogen bomb'
nゐ、method、drinking fat as a former oily r'＠、
At the beginning, it is liquid, or when it is made into liquid, it becomes liquid, and in a relatively short period of time it changes to V (curing property r).
When the attached resin is attached, I yearn for it, and the enemy's fibrous W is raised by me τ autumn A shaku @J
Ebisaku J] j 100 r character 1 b 'saze second V (1) Soseisen IJ official who impregnated into the fiber mass was foamed and cut into a craftsman type T, and scolded (1) 8 cm of fiber , method of foaming, hardening, etc. is used for the impregnated blood-like body.

As a reinforcing layer used for the fiber-reinforced glass snack layer that is placed on the surface of the cloth, carbon fiber, Kevlar glass fiber, etc. It can be used alone or in combination, both as a form and as a form. Golf club head shape f (requires careful attention to the placement of the elastic pole fibers). In the case of a cylindrical ylh tube,
Partially cut tiles 1. ＋、Need to hurt the nail'i27、
It is preferable to reduce the amount of C in the cut and blood spots and place it in areas where the strength does not cause problems with repulsion, elasticity, or appearance. Q: If there are a lot of these cuts and blood spots, the strength of the fart will decrease. As for the external appearance problem, it is preferable to make cuts and licks on the sole surface to make them bleed.

In this way, V (as small a cut as possible (reinforcement of the cut part as much as possible), suitable strength), C form is a stretchable stockinette cloth and form. Hairstyle f↓Cross with seven anus and soft hair is preferred. Like carbon fiber of stockinette knitted fabric (F) (For fibers that are easy to break, Vζ
<The crows and Kubler transverse fibers are dark. Idemitsu says that if only cross carbon fibers with a strong structure are used, they can be used with any type of fiber. Two cars, three beds,
There is equal rho. In addition, since the cross Q's thickness direction π, which has a cross Q, is partially routed, the strength of peeling is λ, and the elastic modulus in the floating direction is large, so the repulsion characteristics are clearly set. Teiroto') 0 carbon fiber r weave that is also wide? Fabrics with a coarse structure tend to have a hairstyle-like shape, and when wrapped in a head-shaped fiber-reinforced foam, they can reduce the amount of wrinkles and nail sticking.
1 structure (/j7z), so the carbon fiber can penetrate the entire surface of the fiber-reinforced foam. In 1c-), it is possible to cover the entire surface of the resulting fiber-reinforced foam with reinforcing fibers.As a material for the lees mixture used to break down fiber-reinforced plastics, epoxy, Group 80, and polyester Il can be used. Thermosetting Tsukudaura such as Tachijika, vinyl ester resin, and urethane 4iH resin are used. Is the fiber-reinforced GELASTEC layer on the surface covered all over the core? It's good to be a victim of suspicion, but not necessarily completely.
Even if you don't have one, it's still good to handle the earthen floor of the core body.

As an uninvented manufacturing method for the head, the foam core is molded in a separate mold. The foam core can be machined from a human block, or it can be shaped into a golf club shape. You may also use a tray.

In addition, although it is common that the λ increments of the foam core mold are made smaller than the shape of the mold cavity, they are not necessarily 2t on the eye side. If the core body is not molded with fibers, it is possible to cover it with reinforcing fibers and then arrange it inside the mold.

The π printed on the reinforcing fibers is roving, 163 cross-sketches, braided and stockinette r-kabuichi+! :
Ru. In the case of cloth with living tissue, it is easy to foam without wrinkling force by tightening the head soil surface of the black 21 core (A/KO Φ part Vt), and it is easily foamed without wrinkles. .Then, use the end of the Vζ cloth for the sole as S to re-thicken the inside of the mold by F(1).

The mold may be made of metal or resin. 8! !
Inject the resin into the resin 7) v(Nitrogen τ in the cavity
It is best to remove it with a real nitrogen bong or the like, or use epoxy resin, polyester resin,
Liquid material J that uses vinyl ester resin, etc. and is press-fitted
It is preferable to keep the viscosity low. (
QJ fat may be used, or the viscosity may be lowered by diluting with bath additives or monomers. The pressure of liquid soybean fat is delicious and the reinforcing fibers are strong.

About 0.5 to 201 1 an' is preferred.

For the reinforcement, the mold may be heated to form side ribs, or it may be hardened at 7 yen temperature.

Tsuza V? :Explain examples of English.

FRP2 or something. Reference numeral 6 indicates a hole for a fiber reinforced foam 1, which is a main type urethane foam supplemented with carbon fiber. The maximum carbon width is l[]m+t+'t
20wt% of the fiber-reinforced foam.

The ratio of the insectified flood body 1 inhabiting a group of hobs is 0°6. 1'/
c Elasticity'4 is 8 [10kg/mr66゜Surface FRP2
It is made of carbon cloth and epoxy resin, which has a σ secondary structure. Carbon cloth with two-panel carpet is American s 1'ex
5TYLE manufactured by tile Products Inc.
49.5 [1, L) EEP DRAW FABRIC
0 was used for the golf club head of +1a. It will be used.

The second evil is the destruction diagram of the cross with the car organization t for the congratulation of impurity.
"be.

A piece of cloth is made of paper by the weft 4 and the warp thread 5.6.Ol weft thread 4' and I trowel thread 5'.

6' by IT3'', one piece of cross or forming iL and 2 pieces of Q) The cloth is warp 6, 6'V (it is more sticky than the other one) The cross of the Arashi kumiaki or the shape of the line is shown in the figure. Figure 6 is a cross-sectional view showing the uninvented manufacturing method for a golf club head.A mold cavity shape is formed in a mold 7.8 for forming a golf club head shape. The small fiber-reinforced machined body 9 pieces were wrapped in carbon cloth 10 pieces with a hollow texture and were self-repaired.

The gold m7.8 bartending IIIl/i' has a silicone rubber gasket and is airtight.7)) There are 12 pipes M, which have an after-vibration cavity that is loose. first valve 1
Leave the valve 13 Thrji in the 52-ray closed state.
The wall air inside the cap was removed using a 4ff-X nitrogen bong 14. However, after that, 1 breaks down to valve 16, valve 15',
rli, pre-compressor + 7T 5
kg/aI111/(+1=tE-a n7C EBOKI'/inl)mKThe mold injected into the cavity was preheated to 120℃ and then injected into 7QΩ.
It hardened in about 50 minutes.

Close the 15 valves and open the Venus 7 and 8R and take out the golf head.

The uninvented head is excellent at conforming to the theory of masturbation, and has strength and repulsion properties vr@rL, -1, a sweet spot, or a wide lattice with an ambiguous hook that makes the head's moment of inertia more appealing. .

[Brief explanation of the drawing]

The first one is for a golf club with 6-light heat, and the second one is for removing the structure of a cloth with a nagumi-chin r. Figure 6 shows an uninvented manufacturing method for golf club heads. 5.5' warp 6.6' warp 7 whole body
8 Mold 9 Wapikku Kabuto Foam 10 And Emotional Value γ
MotsujJ-yfζnkuro;11 Pipe
12 No(Eve 13 Valve 14
Common wall honf 15 Valve 16 Epoxy eccentric 17 Compressor
I9 Figure 1 Be-1'

Claims (1)

[Scope of Claims] 1. A head for a golf club comprising a fiber-infested foam core and a fiber-reinforced gelastic layer with grooves and ridges. 2. The head for a golf club according to item 1, which is a cross having a fiber-reinforced glass layer with frequent vertebral fibers or ruts. 5. Inside the power generation core τ type V? whose surface is covered with reinforcing fibers? A method for manufacturing club heads, in which fat is injected into reinforcing fibers, impregnated, and then hardened. 4. #Transmission of the head for a golf club described in item 5 of the dry song of the clock, which is a cross with reinforced fibers to be punched out.