CN1221639A - Multiple density golf club head and method of manufacturing - Google Patents
Multiple density golf club head and method of manufacturing Download PDFInfo
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- CN1221639A CN1221639A CN98116344A CN98116344A CN1221639A CN 1221639 A CN1221639 A CN 1221639A CN 98116344 A CN98116344 A CN 98116344A CN 98116344 A CN98116344 A CN 98116344A CN 1221639 A CN1221639 A CN 1221639A
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Abstract
A multiple density golf club head including discreet heel and toe sections and a center section, the center section being formed of a material that is relatively less dense than that of the heel and toe sections. The materials in the heel, toe and center segment extend for the entire depth of the club head. The positioning of the higher density regions at the heel and toe of the golf club provides for desirable heel-toe weighting characteristics. Also disclosed is a method for manufacturing a golf club head in accordance with the present invention. The method incorporates various manufacturing techniques into a process for manufacturing the club head of the present invention.
Description
The present invention's invention field system especially comprises the glof club head in the zone of different densities and material relevant for glof club head.
Golf clubs can be classified into three kinds of forms, i.e. rod, push rod and iron now.
Usually, the linksman uses rod to hit the golf of long distance in the service area.Original rod glof club head is by the wood materials manufacturing.Though still have many linksmans to like using wooden glof club head, but because the low characteristic of conspiring of wood materials, therefore not a kind of optimal structure, so, developed " metal wood " bar afterwards to strengthen the performance of rod glof club head.One metal wood golf clubs can produce the shape of the rod glof club head of tradition use, but its club head is entirely steel or other metal material manufacturing.
General linksman uses the iron club head to carry out the strike of middle distance between the fruit mountain range at ball seat ground and match play place.Basically, the iron club head has a club head, and this club head is made by some metal, to form the iron and steel of whole club head.
The third golf clubs is the push rod glof club head, and this type of club head is used at chipping area so that golf is squeezed into match play.The club head system of general push rod golf clubs is made of the metal material as iron and so on.
Rod, iron and push rod all have a scope of attack, and when the glof club head square stance, this scope of attack will contact golf.Its traditional scope of attack of push rod and iron is plane or smooth surface.Its scope of attack of tradition rod glof club head is big and be crooked shape, and non-flat forms or plane.
The researcher has used multiple diverse ways to improve the strike feature of glof club head.Wherein a kind of method is for to add to insert on the face of glof club head.When design contained the golf clubs of inserting surface, the material of selecting insert was to provide needed strike feature in golf clubs.The feature of insertion material such as weight, frictional force, tough factor and hardness produce very big influence to the strike characteristic of golf clubs.For example, the golf clubs of the insert material manufacturing of tool great friction coefficient tends to make that golf can produce the rotation of great friction coefficient, and allows an outstanding linksman can control and operate golf ball-batting.But the beginner also dislikes making golf to produce the highly golf clubs of rotation, is because can reduce the hitting distance of golf, and may increases the possibility that golf produces Draw or miss.
The club head of existing multiple this inserting surface is suggested.Generally speaking.Insert only covers the degree of depth of club head some.Usually, club head has backing material in zone that insert is put.The example of the glof club head of tool insert can be referring to United States Patent (USP) case case numbers 4,883,275,5,358,249,5,405,136,5,423,535,5,489,094 and 5,575,472.
Improving the other method of the strike characteristic of glof club head, is the distribution of weight of adjusting club head.The distribution of weight of known club head can influence during the ball/club bump, causes the tendency of rotating around golf club shaft, especially when the position of ball/club bump on face, but not during center of gravity.The technology of existing multiple distribution of weight is suggested, and attempts to reduce this via the distribution of weight in the club head and rotates tendency.This technology comprises distribution of weight on every side usually, wherein wt is allocated in the peripheral region of the club that leaves the club head center, or be applied to root, interlude and front end distribution of weight, wherein make the material of apparatus different densities, with root and the front end of more distribution of weight at golf clubs at root, front end and the interlude of club head.
Weight insert around the example of distribution of weight uses around a kind of.Use less dense planes insert also can be with distribution of weight around club head.Also can via to club head moulding and produce a cavity at the back side of club and can with around distribution of weight suitable, therefore produce complicated shape, wherein weight is heavier around the club head.The pattern of a kind of root and front end distribution of weight is for producing a club head, and wherein root and the front end at club partly uses heavy alloy, and uses low-density alloy at the interlude of club head.Distribution of weight on every side, the example of root and front end distribution of weight can be referring to United States Patent (USP) case case numbers 4,992,236.
During distribution of weight, in the design of glof club head, root and front end distribution of weight and inserting surface have improved the performance of golf clubs around using.These technology make the cost of this specially designed golf clubs rise.And it is quite complicated at the manufacturing and the assembly operation of the modified form that produces these clubs.
Therefore, glof club head continues to have a kind of needs, promptly in conjunction with having distribution of weight and root and front end distribution of weight on every side, and use inserting surface glof club head performance characteristic and preferable sensation and club head structure can be provided, this has limited the ill effect from ball center/club bump, and reaching the efficient that improves on the manufacturing cost, this can not the person of reaching for complicated manufacturing operation institute in the golf club design now.
Have the quite glof club head in close zone not of quite close zone and club head center among the present invention via being provided at the club head that has homogeneous texture on the depth direction and at the root of club head and front end place, have the shortcoming of the glof club head of distribution of weight and inserting surface on every side thereby can alleviate those to heavens.Extend in the entire depth direction of corresponding root and front end at the root of club head and the quite close material exhibition of striding of front end area.Similarly, in the entire depth direction of the low density material extend through central area of the central area of club head.Provide needed root and front end distribution of weight characteristic in the location of club head root and front end place high-density region.Especially, the high desnity metal in front end and the club root can be placed the design that as far as possible reaches height inertia away from the interlude place of that husband club.The interlude of club is then made by low density material.Need a high inertia design to prevent when (sweetspot) or during club center of gravity place putt, not causing the distortion of golf clubs at " central point of club face ".The preferably is made by fiber reinforcement composition for the interlude system of glof club head.Though any suitable material also can use, so that the density of club head interlude is less than root and front end.
One of glof club head example with feature of the present invention comprises three different segmentations: a root that is formed by close metal material; One front end that forms by close metal material; With the interlude that forms by nonmetallic materials.Its density of the nonmetallic materials of the aforementioned middle section in fact density than the metal material that comprises root or front end is also low.Root, front end and interlude link together and form a scope of attack, and when brandishing golf clubs, this scope of attack is used to contact golf.The nonmetallic materials that interlude uses are at least quite even on the one side of the scope of attack of golf straight peen along weight.In other words, at least from the front surface of club head to the interlude of rear surface horizontal mutual depth direction comprise whole nonmetallic materials.
The present invention also provides a kind of method that is used to make glof club head of the present invention.Method of the present invention comprises the following step: form the front end of glof club head and form the root of glof club head in first shaping operation in second shaping operation.Then root and front end are placed the mold on the opposition side of mold chamber.The moulding interlude that becomes club head with type in addition.Form the interlude of club head then by the plastics die casting operation that imports the mold chamber.The club head that is produced is included in the interlude that connects root and front end in the single club head structure.In the desirable method of the present invention, root, front portion and interlude system be formed separately, and these three assemblies systems are run through by a clamper and form a glof club head with bonding each inter-module of sticker.There is multiple manufacturing process to be suitable for forming the root and the front end of club head, such as: powder metallurgy, it comprises that using the high temperature sintering operation carries out temperature compacting operation under heat and the room temperature, and preferably forges subsequently or metal infiltration circulation, injection moulding, bag die cast and machining.Be suitable for forming the plastics die casting operation that interlude forms root and front end and comprise resin transfer die casting, injection moulding, reaction injection molding(RIM) and compression die casting.
Therefore, purpose of the present invention system provides a kind of glof club head, its in conjunction with end and root structure before preferable with in the restriction high ball/ill effect that club impacts, and can save manufacturing cost, in other glof club heads designs can't the person of reaching.
Another object of the present invention, for the method for making glof club head is provided, wherein this club head has the interlude that front end that a root that is formed by close metal material, forms by close metal material and is formed by nonmetallic materials.
Can be by detailed description and claims and accompanying drawing hereinafter, understand above-mentioned and other feature, viewpoint, purpose and advantage of the present invention.
Fig. 1 is the front perspective view according to the putter type golf club head of the present invention's manufacturing:
Fig. 2 is the rear view according to the putter type golf club head of the present invention's manufacturing:
Fig. 3 A is the exploded view according to the putter type golf club head assembly of manufacturing of the present invention:
Fig. 3 B is the sectional view that shows the putter type golf club head interlude of the present invention's manufacturing according to the line 3B-3B of Fig. 3 A:
Fig. 4 is the front view according to the iron type club head of the present invention's manufacturing:
Fig. 5 is the front view according to the Wood-type golf club head of the present invention's manufacturing:
Fig. 6 is the exploded view according to the putter type golf club head of the present invention's manufacturing.Wherein do not demonstrate interlude, this view is presented at lip-deep groove area within the assembly:
Fig. 7 A is according to the root of the putter type golf club head of the present invention's manufacturing and the exploded view of front end assemblies, does not wherein show interlude, and is presented at the protuberance on the module inner;
Fig. 7 B is that this figure demonstrates the inner surface that a protuberance is positioned at root according to the end-view of the putter type golf club head root of the present invention's manufacturing.
View before Fig. 7 C presentation graphs 7B root, this figure shows that protuberance is positioned at the inner surface of root:
The perspective view of the end half one of the ingot casting mould that Fig. 8 uses for the present invention's first method;
Fig. 9 A is the three-dimensional exploded view according to the glof club head of the present invention's second method manufacturing: with
Fig. 9 B is along one of shown the present invention's second method of mutual 9B-9B of Fig. 9 A step.
Must understand accompanying drawing is not to show according to former object size, and some embodiment shows with graphical symbol, dotted line, diagrammatic representation and partial graph.In some example, do not have the details that helps and be difficult to the recipient to give omission for the present invention's understanding.Certainly, also need to understand, the specific embodiment that the present invention is not subjected to illustrate in the literary composition limits.Identical sign is represented identical assembly in each accompanying drawing in the text.
Hereinafter these embodiment of glof club head with explanation all have some common feature, all use identical wording in these identical feature explanations hereinafter and claims.It is to be used to play ball golf and position in club head " front " that the ball of club head hits surface or " scope of attack ".And term " top " and " end ", refer to when in transfixion, the orientation of club head when the linksman holds golf clubs, and promptly the bottom surface of club head will touch ground when static.Have the knack of present technique person and also the bottom of club head is called " base plate " (sole).The root system of club head tosses about in the front end of golf.When the linksman holds club and during in resting position, the most close linksman of root of club head." degree of depth " speech refers to the distance that face stretches to the back before the golf clubs.
Please refer to Fig. 1,2,3A and 3B now, numeral 20 refers generally to the putter type golf club head, and it comprises body 21 and hosel 22, and aforementioned hosel provides a bore hole 23, so that club head 20 is connected on traditional bar.Body comprises a root 24, and this root 24 and hosel 22, front end 25, bottom surface 26, end face 27, the back side 28, the scope of attack 29 that generally is the plane are connected with interlude 30.Haveing the knack of present technique person can be with the push rod manufacturing among the figure as " blade " type.But, use " wooden mallet " type push rod of generally peddling among the present invention, and the more not traditional push rod design of tool.
It is 24 different with the material of front end 25 that the material of interlude 80 and root cut open.Especially, interlude 30 more can comprise nonmetallic materials, and root 24 and front end 25 all more can comprise nonmetallic materials.In the drawings, the cross hacures are represented metal material, and dotted line shows nonmetallic materials.The metal material that uses in root and front end can be similar and different according to needed strike feature.In whole specification and claims, " metal material " speech refers to comprise at least the industrial material of a metal.Therefore, metallic organic material also is considered as metal material.In the example of major part, the nonmetallic materials of interlude 30 are also more soft than the metal material of root 24 and front end 25.Therefore, the impact of interlude 30 available buffers and absorption ball.
In one embodiment of this invention, interlude 30 comprises elastomer.Best, elastomer is thermoplastics type's elastomer of selecting one of in following each family, comprising: styrol copolymer, copolymerization polyester, polyurethane, polyamide, hydrocarbon alkene class and vulcanie.Inorganic filler can add in the elastomer, so that can be in conjunction with needed character in interlude 30.For example filler can be strengthened elastomer.Suitable inorganic filling comprises glass, graphite or aramid fiber, silicate, calcium carbonate, silica, such as metal oxide, carbon black and metal dusts such as aluminium oxide, titanium dioxide and zinc oxide.The preferably strengthens composition for fiber can be in order to form interlude 30, and for example: reinforced fibre thermoplastic polyamide or fiber are strengthened thermosetting polymer, below more description will be arranged.
In other embodiment of the present invention, interlude 30 contains the heat-coagulation compound.The thermosetting resin interlude 30 that is suitable for being shaped comprises epoxy resin, polyimides and mylar.Preferable thermosetting resin is an epoxy resin.Better person is strengthened by fiber for thermosetting resin.The fiber that is fit to comprises: glass, graphite and aramid fiber.It is directed by any way that aforementioned fibers can be positioned on interlude 30, as random orientation or unidirectional orientation or multidirectional orientation (for example 0 degree, 45 degree or 90 degree).Better person is, is continuous in order to the fiber of strengthening this thermosetting resin; Yet lacklustre, random orientation discontinuous fibre or braided fiber also can use.For example: interlude 30 comprises the epoxy resin that continuous fiber is strengthened.Though, in preferred embodiment, interlude 30 is made of nonmetallic materials, but be understandable that, in various embodiments of the invention, interlude 30 can have the institute that is fit to material that is lower than root and front end density of material by other and constitute, for example, metal material, contain the composition of metal material, or fiber is strengthened low density metals matrix composition (for example: boron fibre is strengthened aluminium).
Certain material for interlude is selected preferably has the D50 hardness of minimum Shore hardness analyzer, and as everyone knows, this hardness is the required minimum hardness that has of the scope of attack that U.S. golf alliance requires glof club head.The preferably makes for the metal material of two metals at least by the metal material that comprises at least a metal for root 24 and front end 25.Each metal material preferably should have the final alloy density of every cubic centimetre at least 7 gram, but is understandable that, selected any density is greater than interlude.In preferred form of the present invention, the final alloy density of metal material is between every cubic centimetre 7 to 13 gram.In another pattern of the present invention, the final alloy density of metal material is between every cubic centimetre 9 to 11 gram.In preferred form of the present invention, metal material all has the final alloy density of every cubic centimetre 10 gram approximately.
Form interlude 30 end products that employed material produces, wherein the combination of material is quite even haply.In addition, in preferred embodiment, the nonmetallic materials that comprise between the club head section 30 are quite even haply, are like this on the vertical plane of the scope of attack shown in Fig. 3 B 29 at least.
Fig. 4 illustrates the iron type club head of making according to the present invention 40.By seeing among Fig. 4, the feature of iron type club head 40 is identical with the feature of putter type golf club head 20, that is, the root of relevant density is in the same place with the interlude group of less density with front end system, so the explanation of putter type golf club head can be used as with reference to using.Similarly, Fig. 5 illustrates wooden mark type glof club head 50, and this Wood-type golf club head system is identical with the feature of putter type golf club head 20 according to manufacturing of the present invention and its feature.Therefore above the explanation of putter type golf club head 20 can be used for illustrating the feature of Wood-type golf club head 50.
Glof club head of the present invention can have the club head of enough structural intergrities according to any suitable method manufacturing, though this method of narrating lineage preferably.
In preferred embodiment, the root of club head and front end are prepared by any suitable technology, for example PM technique.For example, preparing first mold makes its shape such as glof club head hold 25 before.Prepare the root 24 that second mold makes its shape such as glof club head again.Can use and in PM technique, have the knack of the known technology of present technique and these molds of material preparation.After preparation, powdered metallurgical material is filled in each mold.Best first mold uses identical powdered metallurgical material with second mold.But, can in first mold and second mold, use different powdered metallurgical materials.
After powdered metallurgical material is placed first and second molds, can use various PM technique to handle root and front end position that powdered metallurgical material becomes glof club head.Especially, can use unbalanced punching press and pressureless sintering method with compound root and the front end of more efficient method design.This method is also referred to as hot pressing or pressure sintering.Also can use the combination of chill mould compacting and pressureless sintering to produce root and front end.
Form root and front end in the powder metallurgy processed of punching press of aforementioned use cold isostatic and pressureless sintering, first and second molds comprise pulverous metal material, and it ties up to enough pressure lower compression and is formed on the compacting base of metal material in the mold.Usually, pressure acts on the powder equably from each side.Best, carry out this equilibrium punching press at ambient temperature, and make this mold by elastomeric material.After punch steps, from mold, shift out the compacting base, and when reaching needed shape if desired, this position can be rebuild.Best, this compacting base only needs minimum machining.After the compacting base is suitably repaired, if necessary, improve temperature with it heating to make the compacting base densified via sintering processes.In this process, the specified temp of use can change with the metal material that uses in the mold.The powder metallurgy root and the front end area of glof club head of the present invention are preferably produced by solid state sintering.This operation need remain on the compacting base high but just is lower than under the temperature of fusing point of metal material.Sintering step is generally carried out under the situation that pressure is not imported heating clamber.
In the present invention's method, system uses balanced punching press and pressureless sintering (isostaticpressuring and pressureless sintering) to form root and front end, second mold forms has the root shape, makes after compression, forms a bore hole in the compacting base of root.Preparation has the 3rd mold of the hosel shape of glof club head then, and filling is with pulverous metal material.Under the pressure of the compacting base that is enough to form the powdery metal material, will compress then at the powdery metal material in the 3rd mold chamber.From the 3rd mold, shift out the compacting base subsequently.One end that will have the compacting base of hosel shape then is inserted in the bore hole of the compacting base that forms in the root shape of club head.Root and hosel fit together tightly, make can keep the alignment relation between root and the hosel in processing backward.In conjunction with root and hosel compacting base subsequently under high-temperature heat-agglomerating comprise the root of a complete hosel with formation.Employed the third powdered metallurgical material in this pattern of the present invention can be identical or different with first and second kinds of powdered metallurgical materials.
In the present invention's method, use the powder metallurgy operation of chill mould compacting and pressureless sintering to form root and front end, the powdery metal material in first and second molds ties up to enough pressure lower compression, to form the compacting base in mold.Generally, carry out squeeze operation at ambient temperature.After compacting step, from mold, shift out the compacting base, and under high-temperature, heat, to reach the densified of metal material in the compacting base via sintering circuit.Normally, carry out the sintering step of this operation importing pressure under the state of heating clamber.When the easier compacting of metal dust, carry out room temperature die casting warm compaction and no pressure sintering usually.
In the powder-processed of using hot-cast mold pressing reality, form root and front end, in stove, place in it and include first and second molds of powdered metallurgical material, and simultaneously pressure and temperature is acted on the metal material to reach the densified of metal material in the mold.In the hot-cast mold pressing solid step of this operation was rapid, the specified temp of use and pressure can change along with the metal material that uses in the mold.Basically, carry out the drop stamping operation under half temperature value approximately in the absolute fusion temperature of powdered metallurgical material, employed temperature was also low during this temperature was handled than no pressure sintering usually.
After in arbitrary method of no pressure sintering or drop stamping processing, producing the sintering root and sintering front end of glof club head, suitably, from heating clamber, take away then this root and front end cooling.Best, sintering circuit produce root and fore-end in the club head near final form.
In other diverse ways, the root of club head and front end can use injection molded, and wherein fluid mixture comprises polymeric material, fibrous material and metal material, are the first mold chamber of injecting suitable shape.The first and second mold chambers are promptly cooled off the assembly that solidifies to form thereafter.
(for example: mold chamber embodiment), interlude 30 can produce a precast construction that is fit to by manufacturing process or any other operation in the embodiment of single operation.In the embodiment of a model technology, prefabricated root 24 and prefabricated front end 25 are opposition side and and the between die casting interlude 30 that places the mold chamber.In this mode, glof club head 20,40 or 50 is formed, and root 24, front end 25 and 30 of interludes combine.
In the embodiment of mold chamber, prefabricated root 24 and front end 25 are the opposition side that is placed on the mold chamber 60 in the mold 55, person as shown in Figure 8.The shape of the mold chamber 60 in the mold 55 is made according to the shape of the interlude 30 of glof club head 20 of the present invention.Mold shown in Fig. 8 55, wherein front end and root are installed in the mold chamber 60 on mold 55 left sides.Shown in Fig. 8, front end and root are not installed in the right of mold 55 in mold chamber 60.Can find out that on the opposition side of mold chamber 60, mold 55 is clamped root and front end with the phase opposed relationship.
In the method for the invention, can use multiple plastics die casting operation so that polymeric material is imported in the mold chamber, and form the interlude of club head.In method used in the present invention, there are four kinds of plastics die casting operations particularly useful.
First method is resin transfer die casting, wherein a polymeric material is injected at low temperatures the close mold of envelope.This will be suitable for forming the interlude of club head.The low pressure of using in resin transfer die casting, permission can effective cost-effective die casting method.For low and suitable output, resin transfer die casting is a kind of good process choice, and suitable thermoplasticity or thermoset copolymer material formation interlude from having or do not have reinforcing fibre.
Second method is injection moulding, and this is the plastics die casting operation of the most widely using.This operation is quite helpful for method of the present invention.The injection molding technology that is developed at present has cost-efficient operation to extremely complicated mold shape.
The third method is reaction injection molding(RIM), wherein under high pressure mixes two or multiple fluent material, then resulting mixture is under low pressure injected mold, finishes response procedures at the material that this injected, and it is suitable for using in the method for the invention.
The 4th kind is operating as the compression die casting, wherein places polymeric material in the mould of heat, closes mould then, and compression pressure and heat effect on mould to form needed product, this operation is helpful to method of the present invention.
After polymeric material is imported mold chamber 60, form the interlude 30 of glof club head 20 of the present invention.As shown in Figure 8, because on the opposition side of mold chamber 60, with the relation faced mutually configuration root and front end, when polymeric material imported mold chamber 60, polymeric material was connected on the inner surface 70 on surface 75 and front end within the root.After finishing the die casting operation, interlude 30 connects root and front end with single club head structure.When from mold, shifting out club head, any small overlap or essential removal of gate vestiges on the interlude 30 of glof club head 20.In addition, can grind the scope of attack 29 of glof club head 20, to obtain the outward appearance of more charming U.S..Made glof club head 20 has highdensity root 24, low-density interlude 30 and highdensity front end 25.
In preferred embodiment, compression die casting system is applied in simultaneously the interlude 30 that forms club head 20,40 or 50 by thermosetting polymer and is connected root 24 and front end 25 to 30 one-tenth single club head structure of interlude.In this embodiment, this operation have by submergence not heat cure type thermosetting resin the continuity reinforcing fibre with settle fiber to become the sheet plate and begin.The preparation of one prefabrication system is by mold cutting impregnated sheet and set up one and have and finish for example laminate shape of the suitable shape of glof club head 20,40 or 50 interlude 30 of assembly.Prefabrication is consolidated into vacuum subsequently has due manipulation strength.
As shown in Figure 8, then root 24 and front end 25 are placed the opposition side of the mold chamber of compression die casting.Prefabricated strain is placed in the mold chamber between root 24 and front end 25 zones.The lid of closes compression die casting mould, and whole mold is placed in the platen press.The board of heating provides uniform compression load to compression mold, fixed whereby prefabrication.Compression mold is kept being in the high-temperature, to allow resin flows.Resin is the faying face of mold chamber and wetting root 24 and front end 25 abrim.The effect of cured thermoset resin is played in the combination of temperature and pressure, and forms the metal surface of the viscosity combination with structure of root 24 and front end 25.After the program of finishing the compression die casting, remove mold from platen press, open mold, a promptly extensible single glof club head semi-finished product form.Overflow in the resin (overlap) in glof club head root 24 and front end 25 zones, no matter its quantity number all can be removed very easily, this is to be still warm and flexible because of resin.Last fine finishining comprises: grinding, polishing, purge or the like, can after die casting, finish, carry out this operation, could make one have that correct facility are processed, final, the refine parts of facility finishing and working procedure parameter.
The thermosetting resin that adopts in the preferred versions of the inventive method can preferably adopt epoxy resin, polyimide resin (it has more excellent hot property) or more expensive polyester.Can obtain to have epoxy resin among different hardening times and temperature, flow behavior and modifier many so that different toughness, elasticity, chemical resistance and mechanical strength benefits to be provided.
The reinforcing fibre of dipping is can be in any way directed, for example at random, unidirectional or multidirectional (for example 0 degree, 45 degree or 90 degree).Also can use unglazed, random orientation discontinuous fibre, perhaps also can use braided fiber, so that the tearing toughness characteristic that gives for example to improve.Can use multiple fibrous material to improve special characteristic.In preferable structure, graphite fibre system is applied as main structure stiffener.Graphite is preferable in glass or aramid fiber in this case, is concerning high coefficient elasticity and good noise elimination feature because of it.Graphite also provides useful electrical characteristic.Especially, graphite fibre is an electric conductor, and when being molded in interlude, contacts the metal bond surface of glof club head root 24 and front end 25 at random.Result like this, graphite fibre provides extremely low resistance electrical continuity in metal root 24 and front end 25 zones.If in the production process thereafter, need to adopt electrochemical arbitrarily coating, when refine or cleaning procedure, because only need set up a single electric contact point (usually in hosel), thereby proof is very favourable.
Prefabrication also can be shaped and preconsolidation around metal mandrel or assembly mould.In other modification, prefabrication also can be by the fine rule coil winding machine of the computer numeral control plug of reeling, and it can soak fiber with resin when reeling, or coiling fibroid prefabrication, and under pressure, resin is passed on this prefabrication thereafter, reaches the dipping purpose.The precuring of prefabrication can be finished by mechanical device by preferable vacuum method or in the compression mold of simplifying.
The fiber of the proofing of the scope of attack of generation outer surface and glof club head also can have multiple formula shape.Different fibre strengths and/or directionality can be applicable on the scope of attack to reach different machinery and optical characteristics.In the same manner, the resin that is applied in dip coating also can be different, so that reach different machinery and optical characteristics at the scope of attack of glof club head.Also can add chemical modifier to adjust toughness, wear resistence, acoustic characteristics or color of resin.In one embodiment, glass fibers is maintained and is applied in the epoxy resin-base with color, has comfortable to reach, rigidity, the wearability surface of beautiful outward appearance.
In the method for the invention, wherein interlude 30 is formed in the mold between root 24 and the front end 25, can be with it remodeling to improve the performance characteristic of resultant glof club head.For example, use can increase the metal/non-metal connecting area, and to provide the treatment process of the remodeling of mechanical support to the contact between the contact between interlude 30 and the front end 25 and interlude 30 and the root 24 be desirable.
In the remodeling processing method of first kind of increase metal/non-metal connecting area, form front end 25 and root 24, make on the inner surface 70 of front end 25 and the inner surface 75 of root 24 forms a protuberance that it is connected with polymeric material at this club head interlude.Show the pattern in these protuberances among Fig. 7 A.In Fig. 7 A, can see forming L type protuberance 71 on the inner surface of front end 25, and on the inner surface 75 of root 24, form L type protuberance 76.
Other patterns of protuberance are shown in Fig. 7 B and 7C.In this embodiment, as among the figure with reference to the dovetail syndeton shown in the label 80, it is formed with conduit 81 for the flowing in it of polymeric material during the die castings, is used for the mechanical grip structure of assembling with generation.In the present invention's embodiment, use fiber to strengthen composition to form interlude 30, this is individual for settling, the impregnated sheet of non-pre-compacted is needed to the mold cavity, makes to guarantee that conduit neutralization that fluid enters the dovetail syndeton is in order to fixing prefabrication.
The protuberance of root 24 and front end 25 also can be formed by additive method.Now lift an example, use in the powder metallurgy manufacturing process one, can be before the compacting base heat under high-temperature, as previously mentioned, the surface that the hardware of at least one for example stainless steel pin or bamboo shoot part is inserted each compacting base.Hardware at least a portion is from the surface projection of compacting base.When add the hot compaction base in high-temperature, hardware is that diffusivity ground links the metal material in the compacting base.The remodeling of this operation, a protuberance that part constituted from the surperficial projection hardware of compacting base is to be formed on front end 25 surface and root 24 surfaces.
As shown in Figure 8, when placing front end and root on the mold, the configuration protuberance makes and can make it to contact with polymeric material when in the polymeric material importing mold.Use this mode, the cured polymer material that comprises the interlude of club head is surrounded the protuberance of front end and root, therefore increases metal/polymer material connecting area.The configuration of the protuberance of front end and root in polymeric material can increase the performance of club head to the shearing stress on second border between the root of first border between interlude and the front end and interlude and club head.But even when forming protuberance on the inner surface at root and front end position, the nonmetallic materials of interlude will extend to the back side of club head along a plane of at least one scope of attack perpendicular to club head to depth direction from the scope of attack of club head.
In the remodeling operation of second connecting area that increases metal/non-metal, form front end and root and make and form groove area or undercut at the inner surface of front end or the inner surface of root.A pattern that shows these groove areas among Fig. 6 in this figure, can be seen forming groove area or undercut 72 on the inner surface 70 of front end 25.In the inner surface 75 of root 24, also form similar groove area or undercut 77.As shown in Figure 8, when placing front end and root in mold, configuration plane is to the undercut 72,77 of mold chamber, and making can be when the front end material imports the mold chamber, and this polymeric material can flow in the undercut 72,77 in front end and the root.In an embodiment of the present invention, use fiber reinforcing ring epoxy resins to form interlude, this is individual for settling, the impregnated sheet of non-pre-compacted is needed to the mold chamber, enters in the undercut and fixing prefabrication so that guarantee fluid.The configuration of the root of this club head, front end and interlude can increase metal/polymer material connecting area and increase the performance of club head for shearing stress between second border between the root of first border between interlude and the front end and interlude and club head.
In other processing variation of the inventive method, to the inner surface 75 of the inner surface 70 of front end and root before placing mold coated with sticker.Configuration front end and root in mold, and two coated side make that in the aspectant relation of formation on opposition side of mold chamber when polymeric material imported mold, coated side can contact polymeric material.The strength of connection that is produced between polymeric material and metal material has been given and has been strengthened.When club head contacted with an object, the binding of this reinforcement played interception to the second borderline shear stress effect between the root of first border and interlude and club head between interlude and the front end.
Glof club head 20,40 or 50 root 24, front end 25 and interlude 30 also can be assembled into a glof club head with enough structural intergrities by any other method.In other embodiments, root 24, front end 25 and interlude 30 are chemically to link and fixed by mechanical gripper.Please refer to Fig. 9 A and 9B, root 24, front end 25 and interlude 30 are available suitable method preparation of closing, for example above method of being narrated.Hole 91 preferablies are taper, lie in and be drilled in root 24 and the front end 25, in order to accept clamper 92, for example be provided with bolt or other clampers that is fit to of screw thread, on interlude 30, form coupling guide hole 93, be shaped in the time of can being shaped (for example die casting operation) by boring or with interlude, or any other method.Before the assembling, suitable sticker 94 is in order to the interface of root 24, front end 25 and the interlude 30 that links so that fix it with clamper 92 is in place.In preferred embodiment, tapered portion 95 allows the no threaded portion and hole 91 interference fit of screw and produces a load to strengthen to the binding in hole 91 and with it sealing.Need time and temperature to solidify sticker 94, thereafter screw cap 97 is ground, the surface 96 of its root and front end is flushed.So make tapered portion 95 allow screws to produce the interference fit and the preload in necessary hole, and allow screw cap 97 to shift out and need not to damage the structural intergrity of preload or clamper.
Also can in the material that forms interlude 30, increase the colouring agent of effective dose if necessary, make it have the color of root of being different from 24 and front end 25.Root 24 also can be done processing like this with front end 25 (or its relevant surface), makes it have the outward appearance that is different from interlude 30.Therefore believe the color contrast of root, front end and interlude, provide and make us pleasing and outward appearance aesthetic feeling.
Also can use simultaneously multiple different surface treatment that front end and root are composed upward color.Suitable surface treatment comprises: organic coat, as make and paint or preferably enamel, acrylic acid electropaining are covered, apply as the conversion of trbasic zinc phosphate, magnesium phosphate or black oxide, or electroplate as zinc-plated, nickel plating or contain the chromium plating that black bichromate coating meaning promptly comprises the zinc plating of black bichromate.
Strengthen the outward appearance of the ball strike of club head in addition by the scope of attack of mill ball.In the treatment process of remodeling, wherein surface treatment step comprises in the method for the invention, and generally this grinding steps need be carried out before any surface treatment, because the mill ball scope of attack may be removed the coat on root or front end.
Employed suitable material can be with reference to the explanation of the invention described above club head in relevant the inventive method.Be that interlude can be made by elastomer.For example the hot plastomer comprises for to select from following each family: styrol copolymer, copolyester, polyurethane, polyamide, hydrocarbon alkene class and vulcanie.Can in elastomer, add inorganic filler, so that obtain any combination of the required character of interlude.For example, filler can be strengthened elastomer.Suitable inorganic filler comprises: glass.Graphite or aramid fiber, silicate, calcium carbonate, silica, such as metal oxide, carbon black and metal dusts such as aluminium oxide, titanium dioxide and zinc oxide.Better elastomer is the polyamide thermoplastic that fiber is strengthened.
Better person is that interlude system is shaped by strengthening thermosetting polymer in the preferred versions that adopts the present invention.Be suitable for the being shaped thermosetting resin of interlude comprises epoxy resin, polyimides and mylar.Preferable thermosetting thing is an epoxy resin.The fiber of the better person of thermosetting thing for strengthening.The fiber that is fit to comprises: glass, graphite and aramid fiber.The best material in order to the shaping interlude is that continuous fiber is strengthened polyimides epoxy resin.
Be preferably in the powdered metallurgical material that uses in die casting, compacting and the sintering processes operation and comprise the metal material that contains at least two kinds of metals.When finishing the sintering step of this method, the final alloy density that is preferably in the metal material in sintering root and the sintering front end is every cubic centimetre at least 7 gram.In of the present invention one better pattern, the alloy density of the metal material in sintering root and sintering front end is every cubic centimetre 7 to 13 gram.In a better pattern, the alloy density that metal material had of sintering root and sintering front end is every cubic centimetre 9 to 11 gram.In optimum pattern of the present invention, the final alloy density that metal material had in sintering root and sintering front end is every cubic centimetre of about 10 grams.In addition, preferably the density of the density of sintering root and sintering front end is bigger 8 times than the density of interlude at least.
Pulverous metal material also can comprise first powdery metal that is dispersed in second powdery metal.Wherein the density of first metal is than the second metal height.Best first powdery metal is every cubic centimetre at least 10 gram, and second powdery metal system selected from following alloy, and it is the alloy based on iron, based on the alloy of nickel with based on the alloy of copper.The specific examples of the first suitable metal is tungsten, tantalum, niobium and molybdenum.
Iron containing alloy is a preferred metal, can be used for wrapping in the die cast operation to form the root and the front end of glof club head of the present invention.The revealer is for ferroalloy has the density of every cubic centimetre 7 to 8 gram, and it is extremely favourable being applied in the bag die cast operation.
Therefore, can find out and the invention provides improved glof club head and its manufacture method.Can find out that also glof club head of the present invention has needed root, the distribution of weight characteristic of front end.Especially, as much as possible the high desnity metal in front end and the root is placed away from golf clubs interlude place, and obtain inertia highly design.Use low density material and make the interlude of bar head.When not being when hitting golf at " central point of club face " or club center of gravity place, this high inertia design can prevent the golf warpage of rod.
In addition, method of the present invention is more cheap on cost with respect to the treatment process that other are used to produce high characteristic golf clubs.Use improved PM technique or bag die cast to allow root and the front end area of production near final form.This causes carrying out manual refine processing and handles.PM technique and bag die cast also allow accurately to control and change by the ratio that changes powder metallurgy mixture amount and light metal the density of root and front end.The manufacturing cost of using the plastics die casting technology also to reduce with the interlude that produces club head.And, the time in advance of removing many unnecessary manufacturing steps and also reduced the production of glof club head of the present invention.
Though narrated the present invention quite meticulously with reference to some preferred embodiment, had the knack of present technique person and should be appreciated that the present invention can differ from preferred embodiment of the present invention by other and realize.Therefore these embodiment do not lie in restriction the present invention as illustrative purposes only its order.Therefore, the spiritual viewpoint of the present patent application claim is not limited to the above-mentioned preferred embodiment of narration in the specification.
Claims (56)
1. a glof club head comprises the assembly of three separation at least, it is characterized in that,
It comprises:
Root is formed by first material with first density;
Front end is formed by second material with second density; And
Interlude forms by having the 3rd material of density less than described first density and second density;
Described root, front end and interlude are combined into one.
2. the glof club head according to claim 1, it is characterized in that, further comprise one of the described root of a scope of attack extend through, front end and interlude side, described the 3rd material of described interlude evenly and substantially fully along at least one plane perpendicular to the scope of attack.
3. the glof club head according to claim 1 is characterized in that, described the 3rd material of described interlude is nonmetallic materials.
4. the glof club head according to claim 1 is characterized in that, described the 3rd material of described interlude is that fiber is strengthened combined material.
5. the glof club head according to claim 1 is characterized in that, described the 3rd material comprises the elastomer with inorganic filler.
6. the glof club head according to claim 5, it is characterized in that described inorganic filler is to select from be made of glass, graphite, aramid fiber, silicate, calcium carbonate, silica, metal oxide, carbon black and metal dust group.
7. the glof club head according to claim 1 is characterized in that, described the 3rd material comprises thermoset copolymer material.
8. the glof club head according to claim 7 is characterized in that, the thermoset copolymer material that described the 3rd material comprises is strengthened with fiber.
9. described according to Claim 8 glof club head is characterized in that, described fiber is from selecting by glass, graphite, aramid fiber with group of boron family becomes.
10. the glof club head according to claim 1 is characterized in that, described first material is identical material with described second material.
11. the glof club head according to claim 1 is characterized in that, described first material and described second material are metal material.
12. the glof club head according to claim 1 is characterized in that, described first material is identical material with described second material, and both are all metal material; And
Described the 3rd material of described interlude is that fiber is strengthened combined material.
13. the glof club head according to claim 1, it is characterized in that, described root and described front end all have in order to accepting the bellmouth of clamper, and described interlude has a plurality of guide holes, and each guide hole coupling one of has the hole corresponding to described root and described front end.
14. the glof club head according to claim 13 is characterized in that it further comprises:
Clamper is received in the bellmouth of described root and in the described coupling guide hole of described interlude, with fastening described root and described interlude; And
Clamper is received in the bellmouth of described front end and in the described coupling guide hole of described interlude, with fastening described front end and described interlude.
15. the glof club head according to claim 14 is characterized in that, it further comprises the chemical sticker that the chemistry that links described root and described interlude connects sticker and links described front end and interlude.
16. a golf is characterized in that it comprises:
Separately three sections, comprise the root that forms by the first density metal material, the front end that the second density metal material forms and the interlude that forms by nonmetallic materials, in fact less than the density of the metal material that forms described root or described front end, described root, front end and interlude link together described nonmetallic materials density; And
One scope of attack, the described scope of attack extends across described root, and a side of front end and interlude, the nonmetallic materials of described interlude distribute along at least one uniform plane perpendicular to the scope of attack substantially fully.
17. a golf is characterized in that it comprises:
Separately three sections, comprise the root that forms by the first density metal material, the front end that the second density metal material forms and the described interlude that forms by nonmetallic materials, in fact less than the density of the metal material that forms described root or described front end, described root, front end and interlude link together described nonmetallic materials density; And
One scope of attack, the described scope of attack extends across described root, a side of described front end and described interlude;
The nonmetallic materials of described interlude distribute along at least one uniform plane perpendicular to the scope of attack substantially fully;
Wherein, described first and second metal materials all comprise at least two metals, and described first and second metal materials be have density be every cubic centimetre at least 7 the gram final alloy.
18. the glof club head according to claim 16 is characterized in that, described nonmetallic materials are a uniform mixture.
19. the glof club head according to claim 18 is characterized in that, described first and second metal materials all comprise at least two kinds of metals, and the final alloy density of described first and second metal materials is every cubic centimetre at least 7 gram.
20. according to claim 17 or 19 described glof club heads, it is characterized in that, the final alloy density of described first and second metal materials be every cubic centimetre at least 7 to 13 the gram.
21. the glof club head according to claim 20 is characterized in that, the final alloy density of described first and second metal materials is every cubic centimetre 9 to 11 gram.
22. the glof club head according to claim 21 is characterized in that, the final alloy density of described first and second metal materials is every cubic centimetre 10 gram.
23. according to claim 17 or 19 described glof club heads, it is characterized in that, described first and second metal materials all are included in described first metal that disperses in the matrix of described second metal, and the density of described first metal is higher than the density of described second metal.
24. the glof club head according to claim 23, it is characterized in that the density of described first metal is every cubic centimetre at least 10 gram, and from following each group, select described second metal: based on the alloy of iron, based on the alloy of nickel with based on the alloy of steel.
25., it is characterized in that described nonmetallic materials are elastomer according to claim 16 or 17 described glof club heads.
26. the glof club head according to claim 25 is characterized in that, described elastomer is a thermoplastic elastomer (TPE), and it can be by selecting in following each group: styrol copolymer, copolyester, polyurethane, polyamide, hydrocarbon alkene class and vulcanie.
27. the glof club head according to claim 26 is characterized in that, described elastomer is a polyurethane.
28., it is characterized in that described club head is selected: iron type club head, Wood-type golf club head and putter type golf club head according to claim 1 or 16 or 17 described glof club heads in following each one group.
29., it is characterized in that described interlude material comprises that colouring agent makes it present the color that is different from described root and front end according to claim 1 or 16 or 17 described glof club heads.
30. a manufacturing has the method for root, front end and interlude and the glof club head of interlude between root and front end, it is characterized in that, described method comprises the following step:
In the first formation operation, before forming described glof club head, holds first material;
In second shaping operation, form the root of described glof club head from second material; And
Form the described interlude of described glof club head by plastics die casting operation, described operation imports the mold chamber that is arranged in described front end and described root with described club head material, causes describedly to make interlude connect described root to become single club head structure with described front end.
31. a method of making glof club head is characterized in that, described club head has root, elastomer and is connected root and the interlude of front end, and described method comprises the following step:
In first shaping operation, form the front end of glof club head from metal material;
In second shaping operation, form the root of glof club head from metal material;
Described root and described front end are placed the opposition side of the mold chamber of mold, and the shape of described mold chamber can form the described interlude of described club head; And
Operate the interlude that forms described club head by plastic mo(u)lding, described operation is directed into polymeric material thing material in the described mold chamber, and described interlude connects described root and becomes a single club head structure with described front end.
32., it is characterized in that described mold chamber is arranged in compression mold according to claim 30 or 31 described glof club heads, described method further comprises:
Place described root and described front end to the described mold and be positioned at the opposite side of described mold chamber, before the step that forms described interlude, described mold chamber has the shape that forms the glof club head interlude.
33., it is characterized in that it further comprises the following step according to claim 30 or 31 described glof club heads:
Be formed for the prefabrication of described interlude; And
Before the step that forms described interlude, place described prefabrication to described mold chamber.
34., it is characterized in that the step that forms interlude comprises that using fiber to strengthen combined material casts described interlude according to claim 30 or 31 described glof club heads.
35. according to claim 30 or 31 described glof club heads, it is characterized in that, form described front end and form each step of described root, comprise from, room temperature mold mold pressing reality real and do not have pressure sintering, injection moulding, bag die cast and machining and one of formed to organize the operation and select by even weighing apparatus punching press and no pressure sintering, hot-cast mold pressing.
36. the method as claim 30 or 31 is characterized in that,
Form described front end, make on the surface of described front end, to form a groove area;
Form described root, make on the surface of described root, to form a groove area; And
Described front end and described root are positioned in the die casting mold, make that described two groove areas all contact with polymeric material when polymeric material thing material imports in the mold chamber.
37. the method as claim 30 or 31 is characterized in that,
Produce the protuberance of dovetail syndeton on its surface of the described front end that forms;
Its surface of the described root that forms produces protuberance;
When the club head material was directed in the described mold chamber, described front end and described root had placed mold, caused both all to contact the club head material.
38. the method as claim 30 or 31 is characterized in that, the step that forms described interlude comprises the step of adding colouring agent to described interlude, makes described interlude produce the color that is different from described front end and described root.
39. the method as claim 30 or 31 is characterized in that,
Construct on the connection surface that forms at least one surface at described root or described front end in first and second shaping operations; And
When polymeric material was directed in the described mold chamber, described front end and described root be positioned in the described mold, caused at least one connection surface structure contact polymeric material.
40. the method as claim 30 or 31 is characterized in that, it further comprises the following step:
On front end or at least one surface of root, apply sticker,
When polymeric material being directed in the described mold, described root and described front end have been positioned in the described mold, cause the described polymeric material of at least one surface contact that applies sticker.
41. the method as claim 30 or 31 is characterized in that, the step that forms described interlude comprises that the importing elastomer is to described mold chamber.
42. the method as claim 41 is characterized in that, described elastomer is a thermoplastic elastomer (TPE), and it is selected by comprising in the group that polystyrene, copolyester, polyurethane, polyamide, hydrocarbon alkene class and vulcanie are formed.
43. the method as claim 41 is characterized in that, described elastomer is a polyurethane.
44. the method as claim 30 or 31 is characterized in that, the plastic mo(u)lding operation is selected by comprising in one group of operation that resin transfer die casting, injection moulding, reaction injection molding(RIM) and compression die casting are formed.
45. the method as claim 30 or 31 is characterized in that,
Form the step of the front end of described glof club head, comprise: the first powdery metal material is filled in first mold of described front end shape with glof club head, in described first mold to be enough to that the described first powdery metal material is formed the pressure of described powder metal compacted base with it compression, from described first mold, take out described compacting base, and under high-temperature, described compacting base is heated to form the sintering front end; And
Form the step of the described root of described glof club head, comprise: one second powdery metal material is filled in second mold of root shape with glof club head, in described second mold to be enough to that the described second powdery metal material is formed the pressure of compacting base of described powdered-metal with it compression, from described second mold, take out described compacting base, and under high-temperature, described compacting base is heated to form the sintering root.
46. the method as claim 45 is characterized in that it further comprises the following steps:
Before described compacting base is heated under high-temperature, at least one metal assembly is inserted in each described compacting base, make on the surface of the front end of described sintering, to form a protuberance, and on the surface of the root of described sintering, form a protuberance.
The front end of described sintering and the root of described sintering are positioned in the described mold, make that two protuberances can contact polymeric material when polymeric material imports described mold chamber.
47. the method as claim 30 or 31 is characterized in that,
Form the step of the described front end of described glof club head, comprise first mold of filling first powder metal materials to described front end shape with described glof club head, and simultaneously to described first powder metal materials heating and plus-pressure, to form the front end of sintering; And
Form the step of the described root of described glof club head, comprise second mold of filling second powder metal materials to described root shape with described glof club head, and simultaneously to described second powder metal materials heating and plus-pressure, to form the root of sintering.
48. the method as claim 45 or 47 is characterized in that, the root of the described sintering that forms in the step that adds hot compaction base to a high-temperature and the front end of described sintering are near the goods of final form.
49. the method as claim 45 or 47 is characterized in that, described powdery metal material comprises metal at least two, and its density of the root of the front end of described sintering and described sintering is every cubic centimetre at least 7 gram.
50. the method as claim 45 or 47 is characterized in that, the density of the front end of described sintering and the root of described sintering be every cubic centimetre at least 7 to 13 the gram.
51. the method as claim 45 or 47 is characterized in that, described first and second powder metal materials respectively comprise described first metal that is dispersed in described second metal, the density wall of described first metal described and the density height of metal.
52. method as claimed in claim 51, it is characterized in that, every cubic centimetre at least 10 of the density of described first metal gram, and described second metal is from based on the alloy of iron, to select the alloy of nickel and the group that alloy was caused based on copper.
53. as claim 45 or 47 described methods, it is characterized in that,
Form described the and mold makes after the described compacting base of compression, in described compacting base, form a bore hole:
The 3rd powder metal materials is filled in the 3rd mold of hosel shape with described glof club head;
In the 3rd mold with the pressure of compacting base that is enough to described powdery metal material is formed described powdered-metal with it compression;
From the 3rd mold, shift out the compacting base; And
One of described compacting base that will form in the 3rd mold end is inserted in the bore hole of the described compacting base that forms in described second mold, and during the described compacting base of heating, the described sintering root of formation comprises a complete described hosel under high-temperature.
54. the method as claim 30 or 31 is characterized in that,
Form the step of the described front end of described golf club head, it comprises: first liquid metal material is inserted in described first mold of the described front end shape with described glof club head, and allowed the cooling of described first liquid metal material and form described front end; And
Form the step of the described root of described glof club head, it comprises inserts second liquid metal material in second mold of described root shape with described golf clubs, and allows described second liquid metal material cooling to form described root.
55. the method as claim 30 or 31 is characterized in that,
Form the step of holding before the described glof club head, comprise: the solid members of a metal material is carried out machining processes and formed described front end; And
Form the step of the root of described glof club head, comprise: the solid members of a metal material is carried out machining processes to form described root.
56. the method as claim 30 or 31 is characterized in that,
Form the step of the described front end of described glof club head, it comprises: will comprise that the fluid mixture of a polymeric material and a metal material injects the first mold chamber of the shape with described front end, to form described front end;
Form the step of the described root of described glof club head, it comprises: will comprise that the fluid mixture of a polymeric material and a metal material injects the second mold chamber of the shape with described root, to form described root; And
Cool off the described first and second mold chambers, so that form described root and described front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98116344A CN1221639A (en) | 1997-07-18 | 1998-07-17 | Multiple density golf club head and method of manufacturing |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US897,076 | 1978-04-17 | ||
| US102,725 | 1998-06-22 | ||
| CN98116344A CN1221639A (en) | 1997-07-18 | 1998-07-17 | Multiple density golf club head and method of manufacturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1221639A true CN1221639A (en) | 1999-07-07 |
Family
ID=5225022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98116344A Pending CN1221639A (en) | 1997-07-18 | 1998-07-17 | Multiple density golf club head and method of manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1221639A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102933264A (en) * | 2010-04-06 | 2013-02-13 | 耐克国际有限公司 | Putter heads and putters including polymeric material as part of the ball striking face |
| US8814715B2 (en) | 2008-05-19 | 2014-08-26 | Nike, Inc. | Putter heads and putters including polymeric material as part of the ball striking face |
| US9446292B2 (en) | 2008-05-19 | 2016-09-20 | Nike, Inc. | Golf club heads |
| CN109758741A (en) * | 2018-12-25 | 2019-05-17 | 易富城 | A kind of golf head and push rod |
| CN111421715A (en) * | 2020-03-30 | 2020-07-17 | 成都飞机工业（集团）有限责任公司 | Mold for sewing RFI liquid molding cap-shaped ribs and preparation method thereof |
-
1998
- 1998-07-17 CN CN98116344A patent/CN1221639A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8814715B2 (en) | 2008-05-19 | 2014-08-26 | Nike, Inc. | Putter heads and putters including polymeric material as part of the ball striking face |
| US9446292B2 (en) | 2008-05-19 | 2016-09-20 | Nike, Inc. | Golf club heads |
| US10029160B2 (en) | 2008-05-19 | 2018-07-24 | Karsten Manufacturing Corporation | Golf club heads |
| US10369434B2 (en) | 2008-05-19 | 2019-08-06 | Karsten Manufacturing Corporation | Golf club heads |
| US10765923B2 (en) | 2008-05-19 | 2020-09-08 | Karsten Manufacturing Corporation | Golf club heads |
| US11065515B2 (en) | 2008-05-19 | 2021-07-20 | Karsten Manufacturing Corporation | Golf club heads |
| US11596842B2 (en) | 2008-05-19 | 2023-03-07 | Karsten Manufacturing Corporation | Golf club heads |
| CN102933264A (en) * | 2010-04-06 | 2013-02-13 | 耐克国际有限公司 | Putter heads and putters including polymeric material as part of the ball striking face |
| CN102933264B (en) * | 2010-04-06 | 2015-04-15 | 耐克创新有限合伙公司 | Putter heads and putters including polymeric material as part of the ball striking face |
| CN109758741A (en) * | 2018-12-25 | 2019-05-17 | 易富城 | A kind of golf head and push rod |
| CN111421715A (en) * | 2020-03-30 | 2020-07-17 | 成都飞机工业（集团）有限责任公司 | Mold for sewing RFI liquid molding cap-shaped ribs and preparation method thereof |
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