CN1102858C - Golf club shaft having wave shaped reinforced part - Google Patents
Golf club shaft having wave shaped reinforced part Download PDFInfo
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- CN1102858C CN1102858C CN97180675A CN97180675A CN1102858C CN 1102858 C CN1102858 C CN 1102858C CN 97180675 A CN97180675 A CN 97180675A CN 97180675 A CN97180675 A CN 97180675A CN 1102858 C CN1102858 C CN 1102858C
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- Prior art keywords
- golf club
- enhancing portion
- waveform
- bar
- section
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/48—Details or accessories of golf clubs, bats, rackets or the like with corrugated cross-section
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- 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
- A63B53/12—Metallic shafts
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/06—Handles
- A63B60/08—Handles characterised by the material
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/06—Handles
- A63B60/10—Handles with means for indicating correct holding positions
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- 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
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- 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
- A63B53/10—Non-metallic shafts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/06—Handles
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/06—Handles
- A63B60/12—Handles contoured according to the anatomy of the user's hand
Abstract
The present invention relates to a golf club shaft 25B having improved torsion characteristics comprising a base shaft 5 having an internal surface and an external surface, and at least one wave shaped reinforced part 30 on at least one of said surfaces, said wave shaped reinforced part 30 comprising a plurality of reinforcement pieces. The wave shaped reinforced part 30 is located on at least one of the upper portion, midpoint or lower portion. The golf club shafts of the present invention can be made by applying a base section 2B of a prepreg sheet 2A or assembly having a plurality of finger like elements 2 to a portion of a base shaft 5, wrapping the finger like elements 2 around the base shaft 5 to provide a wave shaped reinforced part 30 having a plurality of reinforcement pieces, and curing the shaft having the wave shaped reinforced part 30 thereon to produce a golf club shaft 25B having a wave shaped reinforced part 30.
Description
The application is the part continuation application of series number No.29/061700 that October 29 in 1996, order was submitted to and the series number No.08/760079 that submitted on December 4th, 1996.The application requires the right of the U.S. Provisional Application No.60/047697 of submission on May 23rd, 1997.
Technical field
The present invention relates to a kind of golf club, specifically, relate to golf club, also relate to the method for making this golf club with waveform rib.
Background technology
Because carbon (graphite) bar is lighter than traditional steel stem, the head speed of golf club increases when swinging, thereby increases the flying distance of the ball that golf club impacted.Yet the shortcoming of graphite ball-making bar bar is that its torsion characteristic is poor.If the torsion characteristic of bat barrel is poor, the mid point of the striking surface of club head is not generally run into ball during impacting.When ball is impacted by the zone beyond the striking surface mid point of club head, the flying distance inaccuracy of ball.
According to the conventional method of the torsion characteristic that improves excellent bar, at first, the fiber of contorted strata orientation (angle that the carbon fiber texture structure in excellent bar axle and the pre-preg sheet forms) should be ± 45 °, and the pre-preg sheet is used to reel excellent bar for several times; But the shortcoming of this method is a flexural strength significantly to be reduced, and the weight of excellent bar increases, although torsion characteristic improves.
The second, steel or aluminium alloy are installed in its inside and top, and the pre-preg sheet is laminated into the axial consistent of the texture structure (grid) that makes carbon fiber and excellent bar; But the use of pipe makes weight increase in the steel, has therefore damaged the lightweight characteristics of carbon system rod bar.
Simultaneously, in order to improve the flying distance of golf, many researchs concentrate on the shape and material that improves golf club head, rather than on the golf club.But excellent bar is a key factor that influences the flying distance of golf.Relevant conventional method is as follows:
The open No.95-23427 of Korean Patent has described the method that some splicing threads are set in excellent bar, but the shortcoming of this method is the weight increase of excellent bar.
The open No.96-1936 of Korean Patent has described the method that forms hexagon or octagon hollow space in excellent bar, and its manufacturing process is very complicated, although increased flying distance.
Although these methods of prior art provide the excellent bar that can be used for golf club, these excellent bars have above-mentioned shortcoming.Therefore people need overcome the golf club and the golf club of above-mentioned shortcoming.
Summary of the invention
The present invention relates to a kind of golf club, it comprises: have the basic bar of inner surface and outer surface and at least one the waveform enhancing portion that forms at least one of above-mentioned surface, wherein waveform enhancing portion has a plurality of reinforcements sections.Waveform enhancing portion is positioned at least one of top, middle part or bottom.
Golf club of the present invention can be made like this: will have the pre-preg sheet of a plurality of fingers or base segment that assembly is made and be applied on the part of basic bar, twine finger around basic bar and have a plurality of waveform enhancing portions that strengthen section, and handle the excellent bar with waveform enhancing portion has waveform enhancing portion with formation golf club to provide.
Golf club by the golf club manufacturing with at least one waveform enhancing portion makes its golf that impacts produce very big flying distance and/or direction accuracy.Waveform enhancing portion improves the torsion characteristic of golf club, and the device that the position that changes excellent bar impact point is provided is to obtain desired flying distance and/or direction accuracy effect.The invention provides the device easily of adjusting the golf club feature according to user's qualification.
Description of drawings
By below in conjunction with the accompanying drawing detailed description of the present invention, can make objects and advantages of the present invention more obvious, wherein:
Fig. 1 is the front view according to the golf club of first embodiment of the invention, and wherein waveform enhancing portion is positioned at the bottom of excellent bar;
Fig. 2 is the front view according to the golf club of second embodiment of the invention, and wherein waveform enhancing portion is positioned under the top gripping end of excellent bar;
Fig. 3 is the front view according to the golf club of third embodiment of the invention, and wherein waveform enhancing portion is positioned at the upper and lower of excellent bar;
Fig. 4 is the front view according to the golf club of fourth embodiment of the invention, and wherein waveform enhancing portion is positioned at the middle part of excellent bar;
Fig. 5 is the front view according to the golf club of fifth embodiment of the invention, and wherein waveform enhancing portion is positioned at the centre position between the mid point of the holding end of excellent bar and excellent bar;
Fig. 6 is the partial, longitudinal cross-sectional according to the part of golf club of the present invention, and this rod bar has the waveform enhancing portion of sinusoidal shape;
Fig. 7 is the front view that can be used for other possible wave-likes of waveform enhancing of the present invention portion;
Fig. 8 is illustrated in the SBR that the finger that twines the pre-preg sheet on the excellent bar forms waveform enhancing portion before, and the base segment of pre-preg sheet or assembly is fixed on the basic bar, and finger is in deployed condition;
Fig. 9 be illustrated in waveform enhancing portion handle before according to the perspective view of the part of the enhancing portion of golf rod bar of the present invention, its finger that some pre-preg sheets that twine around basic bar are shown forms and strengthens section, and some fingers were in deployed condition before Fig. 9 also was illustrated in and twines basic bar;
Figure 10 illustrates the waveform enhancing section that forms around the finger of excellent bar winding pre-preg sheet, and a finger is depicted as deployed condition, and with the effect of explanation formation finger, it is preceding around a band that strengthens the section winding to it also shows processing;
Figure 11 illustrates has the golf club that part is surrounded the waveform enhancing portion of basic bar;
Figure 12 illustrates has the golf club that rib shape strengthens section;
The inside that Figure 13 is illustrated in basic bar has the golf club of waveform enhancing portion;
Figure 14 is the front view of the golf club made of first embodiment of the golf club according to the present invention, and wherein waveform enhancing portion is positioned on the following parts casing pipe (hosel) of basic bar;
Figure 15 is the front view of the golf club made of second embodiment of the golf club according to the present invention, and wherein waveform enhancing portion is positioned under the top gripping portion of bar;
Figure 16 is the front view of the golf club made of the 3rd embodiment of the golf club according to the present invention, and wherein waveform enhancing portion is positioned at the upper and lower of bar;
Figure 17 is the golf club that the 4th embodiment of the golf club according to the present invention makes, and wherein waveform enhancing portion is positioned at the middle part of basic bar;
Figure 18 is the golf club that the 5th embodiment of the golf club according to the present invention makes, and wherein waveform enhancing portion is positioned between the middle part and holding end of bar.
The specific embodiment
Fig. 1 illustrates first embodiment of golf club 25A of the present invention, and wherein waveform enhancing portion 1 is formed on the bottom of golf club.The bottom of this bar is between the upper end 12 of the mid point of the whole length of bar and cannula portion.Fig. 1 illustrates the optimum position a near the enhancing portion of cannula portion 15.Certainly, this waveform portion 1 can be in other positions between the bottom mid point of the upper end of cannula portion and bar.When waveform enhancing portion 1 is positioned at the position a of basic bar 5, significantly improved the flexural property of golf club.
The waveform enhancing portion of golf club of the present invention constitutes by strengthening section.In waveform enhancing portion 1, the quantity that strengthens section is the 1-6 section, is preferably the 1-3 section.Although the enhancing section of greater number can be used for bar, 6 sections of preferred uses at most, thereby to reduce the possibility of golf club because of the flying distance of the too high reduction of weight ball.
Generally, when the quantity of the enhancing section of waveform enhancing portion 1 is 3 sections, flexural property has 10% improvement.As a result, even ball is not hit by the mid point of the striking surface of golf club head when impacting, ball is generally also towards the direction flight of hope, and avoids bad Draw and miss.When waveform enhancing portion 1 was formed on the bottom a of basic bar 5, impact point upwards moved.
The about 2cm to 15cm of length of waveform enhancing portion 1, preferably approximately 3cm to 10cm.
Fig. 2 represents second embodiment of the invention, and wherein waveform enhancing portion 1 ' is positioned at the top of excellent bar.The top of golf club is the part between the lower end of the holding section of the whole length mid point of bar and bar.Fig. 2 illustrates the optimum position b near the waveform enhancing portion of holding section 22.But waveform enhancing portion 1 ' can be in other positions between the lower end of the mid point on the top of bar and holding section.When waveform enhancing portion 1 ' was positioned at position b, the impact point of golf club 25B left holding end 20 and moves down.
The total length of waveform enhancing portion 1 ' can be between about 2cm to 20cm, preferably about 3cm to 15cm.The quantity of the enhancing section of waveform enhancing portion 1 ' is 1 to 7 section, preferred 3 to 5 sections.Although the more section that strengthens also can be used for bar, preferably use no more than 7 sections, thereby to reduce the possibility of golf club because of the flying distance of the too high reduction of weight ball.
Generally, if the holding end of the close bar of impact point, the flying distance of ball is strengthened, but the heading of ball is inaccurate.In addition, be difficult in and accurately impact when swinging on the position of the power maximum of bar, bring very big difficulty for amateurish golfer.
But because for example golf club shown in Figure 2 causes impact point to move down, golf club of the present invention has overcome above-mentioned shortcoming, swings accurately and impacts even make also to be easy to generate for amateurish golfer.In addition, any loss that moves down the flying distance that causes of impact point can compensate by the length that prolongs basic bar 5.The length of base bar 5 can increase so that the original height of the impact point on the height of the impact point of the golf club that makes (counting from the top 10 of bar) and the basic bar 5 that forms thereon before the waveform enhancing portion is the same, thereby makes the flying distance increase of ball.
Do not wish to be bound by theory, following table 1 expression when waveform enhancing portion is applied to the position b of basic bar, the percentage that the general impact point that changes with the quantity of the enhancing section of waveform enhancing portion moves.
Table 1
Therefore, if the height of the impact point of base bar when not having waveform enhancing portion 1 ' (measuring from caput end 1 0) is 15cm, be formed with 3 waveform enhancing portions that strengthen section at the top of basic bar b and impact point be displaced downwardly to highly be 14.5cm (from 10 measurements of caput end), the original height of promptly basic bar impact point reduces 3%.
| Strengthen the quantity of section | The percentage that impact point moves (height of the impact point of measuring from the caput end of bar reduce percentage) |
| 3 | 3％ |
| 5 | 5％ |
| 7 | 7％ |
Fig. 3 illustrates third embodiment of the invention, and wherein waveform enhancing portion 1 and 1 ' is positioned at the upper and lower of excellent bar.Fig. 3 illustrate waveform enhancing portion be positioned at respectively basic bar 5 close cannula portion 15 optimum position a and near the optimum position b of grip part 22.But enhancing portion 1 can be in other positions between the upper end of the mid point of the bottom of bar and cannula portion 15.And enhancing portion 1 ' can be in other positions between the top of bar mid point and the lower end, grip part.When enhancing portion 1 and 1 ' is positioned at the position a of basic bar and b, can obtain the improvement of ball heading and more convenient and swing accurately.
In the present embodiment, the sum of waveform enhancing portion 1 and 1 ' enhancing section is 5 to 7 sections.The waveform enhancing portion 1 ' that is positioned at top b preferably has the enhancing section than the waveform enhancing portion more than 1 that is positioned at bottom a.Enhancing portion 1 has 2 to 3 sections usually, the about 2cm to 8cm of length.Waveform enhancing portion 1 ' has 4 to 5 sections usually, the about 10cm to 15cm of length.
When waveform enhancing portion 1 and 1 ' is provided with, can obtain the improvement of ball heading and more convenient and swing accurately described in present embodiment.Impact point moves down with respect to the impact point of basic bar in addition.
Fig. 4 illustrates fourth embodiment of the invention, and wherein the 1A of waveform enhancing portion is positioned at the mid point m of basic bar 5 length.If the waveform enhancing 1A of portion is positioned at mid point m, impact point moves down with respect to the impact point of basic bar.
In the present embodiment, strengthen section 1A and generally have 5 to 7 enhancing sections, about 2cm to 20cm is long, and preferably about 3cm to 15cm is long.When the 1A of enhancing portion is positioned at the mid point of basic bar 5, can obtain the improvement of ball heading and more convenient and swing accurately.
The waveform enhancing 1A of portion can change with respect to the position of mid point m.For example, the 1A of waveform enhancing portion can be provided with to such an extent that make the waveform enhancing 1A of portion extend same length in the both sides of mid point m.The waveform enhancing 1A of portion also can be provided with to such an extent that have different length in mid point m both sides.
Fig. 5 illustrates fifth embodiment of the invention, wherein the centre position of the 1B of waveform enhancing portion between the mid point m of the lower end of the holding section 22 of excellent bar and excellent bar 5.In golf club shown in Figure 5, impact point moves down with respect to the position of the impact point of former primordium bar 5.In the present embodiment, the 1B of enhancing portion generally has 5 to 7 enhancing sections, the about 10cm to 20cm of length.When the 1B of enhancing portion is positioned at the mid point m of basic bar 5, also can obtain the improvement of ball heading and more convenient and swing accurately.
Fig. 6 is the partial, longitudinal cross-sectional according to the part of golf club of the present invention, and this rod bar has the waveform enhancing portion of sinusoidal shape, and promptly the curve on the surface of wave is different with waveform angled or compression.The enhancing section of the waveform enhancing portion of golf club of the present invention preferably has sinusoidal shape, and is for example shown in Figure 6.
Can have the shape that replaces by a shape that strengthens the wave that section forms, square waveform for example, triangular waveform, compressed waveform and trapezoidal.The example of these alternate shaped is shown in Fig. 7, Fig. 7 be can be used for waveform enhancing of the present invention portion corrugated other may shapes front view.
The base bar
The basic bar that can be used for making golf club of the present invention includes but not limited to commercially available carbon system bar, the titanium bar, and steel pole, fiberglass pole and other are suitable for making the bar of golf club.Carbon system bar is preferably as basic bar.The base bar can be in non-light system state, is promptly applying bright and clean material as before painting.Excellent bar through the light system of bright and clean material processed also can be used as basic bar.
The golf club of many prior aries, for example disclosed among the korean patent application No.96-1939, require complicated manufacturing process.The present invention is to use commercially available basic bar to make golf club than the advantage of traditional golf club.The invention provides the device easily that moves the impact point of golf club according to user's technical merit.
Pre-preg sheet parent material
Pre-preg is the noun of synthetic material industry, is used for the continuous fiber reinforcing material, the mylar preimpregnation of section processes of this material.The pre-preg sheet is well known in the art.The pre-preg sheet is by the known method manufacturing, for example John Wiley﹠amp in 1994; Sons company publishes Callister, disclosed method in " the Materials Science and Engineering:An Introduction " of William D. work, and this content is at this as a reference.Commercially available pre-preg sheet can be used for forming the waveform enhancing portion of golf club of the present invention.
Be used for pre-preg sheet of the present invention and comprise that carbon fiber strengthens the pre-preg sheet, wherein carbon fiber is arranged along single direction.Also can use glass fibre to strengthen the pre-preg sheet, wherein glass fibre is woven with at vertical direction formation cross figure intersected with each other.In a preferred embodiment of the invention, pre-preg sheet parent material is an assembly of handling sheet end face combine glass pre-preg sheet at carbon fibre initial rinse, makes glass fibre pre-preg sheet be positioned at the outer surface of enhancing portion.This assembly prevents that carbon fiber from exposing or peel off in manufacture process.
Be used for pre-preg sheet of the present invention and include but not limited to those sheets by thermoplastic resin preferred epoxy dipping.The thickness of pre-preg sheet is generally between about 0.1mm to 0.15mm.The example that can be used for carbon fibre initial rinse processing sheet of the present invention is T700, can obtain by Korea S's fiber company of Korea S.
The gross weight of the golf club of band enhancing portion
The desirable gross weight of the golf club of band waveform enhancing portion is decision pre-preg sheet suitable thickness and the key factor that strengthens the section suitable thickness.The gross weight of general golf club is between about 70g to 100g.Be about 70g to 75g for long drive person's gross weight with three or more waveform enhancing portion golf club preferably according to the present invention.Preferred gross weight with golf club of three or more waveform enhancing portion of the present invention when being used for the 5-lofting mashie, is about 68g to 72g.
Pre-preg sheet base segment and finger
Fig. 8 is the base segment 2B that is illustrated in the 2A of vertical fixing pre-preg sheet on the part of basic bar 5.As shown in Figure 8, pre-preg sheet 2A has finger 2, and it forms by removing fragment from pre-preg sheet parent material.The base segment 2B of pre-preg sheet 2A is fixed on the basic bar 5, and finger 2 is in the position that is used to be wrapped on the basic bar 5.Usually, the length of the base segment 2B of pre-preg sheet is corresponding to the hope length of waveform enhancing portion.
To describe pre-preg sheet 2A below in detail can be made by single pre-preg sheet or the assembly that for example forms the pre-preg sheet of glass fibre pre-preg fragment on carbon fibre initial rinse is handled sheet.This assembly is cut the pre-preg sheet 2A that forms band finger 2.
Finger 2 preferably has the conical in shape of stretching out, as shown in Figure 8.Although the preferred finger 2 with taper that uses, according to desirable wave-like in waveform enhancing portion, finger 2 can have different shapes.The shape of finger 2 can be determined according to the wave-like of wishing in the waveform enhancing portion easily by those skilled in the art.
Finger 2 can be formed by known device cutting pre-preg sheet or assembly, tool using cutter for example, dish type hard alloy cutter etc.More senior cutting means comprise cross cutting cutting and laser cutting.In the embodiment of Fig. 8, finger 2 is towards the holding end bending of basic bar 5.This shape helps forming the enhancing section that produces the waveform enhancing portion with sinusoidal shape.The degree of crook that is used to form the finger of the waveform enhancing portion with sinusoidal shape can easily be determined according to the size and dimension of concrete basic bar.For example, when the direction of basic bar at the caput end of basic bar attenuates, the length of finger 2 can be dwindled towards the tip of bar and increases with basic bar radius.
Strengthen the shape of section
The outer shape that forms the enhancing section of waveform enhancing portion can form according to the wave-like of desirable waveform enhancing portion.For example, strengthen section and can have sinusoidal shape, so that waveform enhancing portion has sinusoidal shape, as shown in Figure 6.Similarly, strengthening section can have other shapes, for example compresses wave-like so that waveform enhancing portion has, the triangular wave shape, and square-wave form etc., as shown in Figure 7.Other possible shapes comprise arc, quadrangle or spirality etc.Concrete shape can form by polishing wave to this shape.Have spiral waveform enhancing portion pass through for example form one " rope " and form by carbon fiber." rope " twines around basic bar spiral and forms desirable enhancing hop count amount.
Strengthen the thickness of section
The section that has the golf club of waveform enhancing portion before Fig. 9 is illustrated in and handles.Some fingers 2 were in deployed condition before Fig. 9 also was illustrated in and twines basic bar.During fabrication, finger 2 twines around basic bar 5, has the enhancing section 30 of thickness T and overall diameter D with formation.The thickness T of enhancing section as shown in Figure 9 is the function of following parameter: the desirable gross weight that 1) has the golf club of waveform enhancing portion; 2) tapering of bar.The thickness T that strengthens section is at least about 0.5mm.Usually, the maximum ga(u)ge that strengthens section for about 1.5mm with the gross weight of maintenance golf club in the scope of the ideal weight of in the market excellent bar.
In an embodiment of golf club of the present invention, the integral diameter D of the enhancing section of basic bar as shown in Figure 9 and waveform enhancing portion is constant.In this embodiment, the thickness T of each enhancing section can become with the tapering of bar.For example the diameter with bar reduces, and the thickness T that strengthens section increases, and makes that the integral diameter of basic bar and enhancing section is constant.In another embodiment, strengthen the constant thickness of section, and the gross thickness D of basic bar and enhancing section changes.
Make and assembling
Golf club of the present invention is bonded on the basic bar by the assembly with pre-preg sheet or preferred pre-preg sheet and forms.Pre-preg sheet or assembly comprise base segment and the finger that links to each other with base segment.Finger is wrapped on the basic bar, forms waveform enhancing portion.
In an embodiment of the manufacturing of golf club of the present invention, pre-preg sheet as shown in Figure 8 or the base segment with assembly of finger 2 for example use as the binding agent of epoxy resin one desirable section length vertical fixing along basic bar.Finger 2 twines to form enhancing section 30 as shown in Figure 9 around basic bar 5.
Figure 10 illustrates a section of golf club with waveform enhancing portion, wherein, strengthens section and is with 40 to cover before processing.Finger 2 was in deployed condition before Figure 10 also was illustrated in and is wrapped on the basic bar.During fabrication, the basic bar of finger 2 windings forms and has the enhancing section 30 of thickness T and overall diameter D.The available carbon fiber tape 40 of the waveform enhancing portion of gained covers to be handled then, as shown in figure 10.Waveform enhancing portion heat-treats under the temperature suitable for concrete pre-preg sheet.Usually, treatment temperature and time become with concrete pre-preg sheet parent material.Treatment temperature and time for the various pre-preg sheets that can use or form assembly in the present invention separately are known and have announced.Those skilled in the art can easily determine the time and the temperature value of employed concrete pre-preg sheet, and the length of enhancing portion strengthens the quantity and the thickness of section.Time and temperature can be selected for complete or limited processing.
Although preferably as mentioned above around bonding pre-preg sheet of basic bar or assembly, having the waveform enhancing portion of sinusoidal shape as shown in Figure 6 or any other shape shown in Figure 7 can be formed by technique known, for example mold pressing, flame sprays, plasma deposition etc.
In first embodiment of the mould pressing method that the present invention uses, one or more layers uncut prepreg sheet material is wrapped on the surface of basic bar.The bar that is wound then is extruded under heat and pressure effect in the mould of the wave-like with desirable waveform enhancing portion.Preference such as 1,1 ' waveform enhancing portion of enhancing portion are formed on the outer surface of basic bar 5.
As the alternative method of mold pressing, for example the method for flame injection is used in the surface deposition material of bar, has the waveform enhancing portion of the desirable wave-like that forms on the selection part of basic bar with generation.
Although preferred waveform enhancing portion is for example shown in Figure 10 fully around basic bar, only the waveform enhancing portion 32 of part encircles rod can be formed on the selected position of bar 25I as shown in figure 11.Only the waveform enhancing portion of part encircles rod can easily form by technology such as for example mold pressing and flame injections.For example mold pressing and flame spraying technique are particularly suitable for forming the golf club 25F with rib shape enhancing section 31 for example shown in Figure 12.
The waveform that mold pressing also can be used for for example forming the inner surface of basic bar 25G for example shown in Figure 13 strengthens section 30.In this respect, the bar with expansible part can insert in the basic bar, and the expansible part of bar is pressed on the inner surface of basic bar, strengthens section to form.Preferred enhancing section is a waveform, has the waveform enhancing portion of sinusoidal shape with generation.Other waveforms, for example shown in Figure 7 is any, can be by the mold pressing manufacturing.
Figure 14 illustrates the golf club by first embodiment manufacturing of golf club 25A of the present invention, and wherein waveform enhancing portion 1 is positioned at the bottom a near cannula portion 15 places base bar 5.When waveform enhancing portion 1 was positioned at the bottom a of basic bar 5, the torsion characteristic of golf club significantly improved.
Figure 15 illustrates the golf club according to the golf club 25B manufacturing of second embodiment of the invention, and wherein waveform enhancing portion 1 ' is formed near the b place, position of grip part 27 golf clubs.When waveform enhancing portion 1 ' during, move away grip part 27 under the impact point of golf club 25B at position b.
Figure 16 is that wherein waveform enhancing portion 1 and 1 ' lays respectively at the position a and the b of basic bar 5 according to the golf club of the golf club 25C manufacturing of third embodiment of the invention.When enhancing portion 1 and 1 ' laid respectively at the position a of basic bar 5 and b, the heading of ball improved, and it is easier and accurate to swing.
Figure 17 is that wherein the 1A of waveform enhancing portion is positioned at the mid point m of basic bar 5 according to the golf club 29D of the golf club 25D manufacturing of fourth embodiment of the invention.The heading of ball improves, and it is easier and accurate to swing.
Figure 18 is the golf club 29E that makes according to the golf club 25E of fifth embodiment of the invention, and wherein the 1B of waveform enhancing portion is between the lower end of the mid point m of basic bar 5 and grip part 27.When the 1B of enhancing portion was between the lower end of the mid point m of basic bar 5 and grip part 27, impact point moved down, and the heading of ball improves, and it is easier and accurate to swing.
The advantage of golf club of the present invention for example is: the torsion characteristic that a) has improved bar; B) impact point of golf club controllably moves to a desirable position to improve the heading of ball, and it is easier and accurate to swing; C) further ability of extending the length that strengthens bar, with the flying distance of raising ball, and need not be afterburning, promptly need not increase the speed of swinging.Another advantage is to use the basic bar on the market to produce golf club of the present invention, has avoided the manufacturing process of the required complexity of the golf club of prior art.
Make the golf that is impacted by golf club have farther flying distance and/or direction more accurately with the golf club of bar manufacturing of the present invention.Enhancing portion provides the device of the impact point of carriage release lever, to obtain required flying distance and/or accuracy.The present invention also provides the device easily of adjusting the characteristic of golf club according to user's proficient.
In addition, the shock wave when impacting ball has offseted in waveform enhancing portion, thereby has protected the people.
For example
In an illustrative but not in the determinate example, the carbon fibre initial rinse of buying by Korea S's fiber company of Korea S is handled the glass fibre pre-preg sheet that can buy on sheet T700 and the market and is put together, this assembly is cut the base segment that has the finger of tool EOC with formation, as shown in Figure 8.The base segment 2B of pre-preg assembly fixes with epoxy resin along the length of the required section of basic bar, and finger tightly twines basic bar, has the waveform enhancing portion of sine wave shape with formation.The waveform enhancing portion of gained is covered by carbon ribbon.The waveform enhancing portion that is capped is placed in one 80 ℃ of stoves by the bar that waveform enhancing portion will be arranged and heat-treats, and temperature is increased to 120 ℃ then, through 30 minutes.Temperature was brought up to 130 ℃ then, through 60 minutes.Bar with waveform enhancing portion of processing shifts out stove, cool to room temperature then.After handling, remove band with sand paper, bar is ground to eliminate any defective, makes the waveform enhancing portion of gained have slicks.Grinding also can be used for changing the shape of the enhancing section of bending wave shape wave enhancing portion, with the waveform that obtains to wish.
In another non-limiting example of the present invention, made golf club for example shown in Figure 2.In this example, golf club comprises basic bar, and it has the weight of 62g, length overall 1143mm.Original impact point is the caput end 46cm place apart from bar.According to the present invention, after increase had the waveform enhancing portion that length is 20cm and 5 enhancing sections, impact point moved down into the caput end 44cm place apart from bar.Weight with bar of enhancing portion is 68g applying bright material as weighing before painting.If wish that the height of impact point is the same with the impact point that forms enhancing portion former primordium bar before, the length of basic bar will prolong about 70mm to 110mm.
Following table 2-4 shows the golf club of being made by obtainable golf club on the market (" control ") and compares with the similar golf club of being made by golf club according to the present invention (" the present invention "), the measured value of the flying distance of ball and flight and rolling distance (unit: sign indicating number).The specification of prod is comparable.Rod is tested in a mechanical pendulous device, and wherein caput speed is 95mph.
" control "
Test caput: Tour Edge Titanium950-driver (9.0 °)
Rod bar: Aldila-R/S Flex
" the present invention "
Test caput: Tour Edge Titanium950-driver
Rod bar: according to containing five golf clubs of the present invention having near the waveform enhancing portion of the enhancing section of grip part.The upper end of enhancing portion is positioned at about 2.5 inches places under 103/8 inch the grip part.Bar is made by carbon fiber base bar, and 45 inches long.
Table 2
| The center impacts | Flying distance | Flying distance adds rolling distance | ||
| Distance (sign indicating number) | Accuracy | Distance (sign indicating number) | Accuracy | |
| " control " | 235.0 | -0.8 | 281.8 | -6.0 |
| Standard deviation (Std.Dev.) | 1.4 | 4.5 | 7.4 | 6.4 |
| " the present invention " | 244.0 | 2.4 | 272.8 | 2.4 |
| Standard deviation (Std.Dev.) | 3.5 | 4.5 | 3.6 | 4.2 |
Table 3
| 1/2 caput point impacts | Flying distance | Flying distance adds rolling distance | ||
| Distance (sign indicating number) | Accuracy | Distance (sign indicating number) | Accuracy | |
| " control " | 221.4 | 13.4 | 271.2 | 12.8 |
| Standard deviation (Std.Dev.) | 4.7 | 2.1 | 8.3 | 1.9 |
| " the present invention " | 240.0 | 2.4 | 268.8 | 0.3 |
| Standard deviation (Std.Dev.) | 1.9 | 2.2 | 4.8 | 2.9 |
Table 4
| 1/2 caput root impacts | Flying distance | Flying distance adds rolling distance | ||
| Distance (sign indicating number) | Accuracy | Distance (sign indicating number) | Accuracy | |
| " control " | 215.4 | -18.8 | 265.0 | -20.0 |
| Standard deviation (Std.Dev.) | 4.6 | 3.7 | ||
| " the present invention " | 235.8 | -27.6 | 271.0 | -19.0 |
| Standard deviation (Std.Dev.) | 6.6 | 10.1 | 5.7 | 1.4 |
Claims (14)
1. golf club, it comprises: have the continuous substrate of inner surface and outer surface, the top with first length, mid point m, the bottom with second length,
At least one the waveform enhancing portion that at least one of described top, described mid point m and described bottom, forms,
Described waveform enhancing portion comprises a plurality of enhancings sections.
Described at least one enhancing section comprises the pre-preg material of the resin dipping that twines around described continuous substrate circumference,
Wherein, the length of described at least one enhancing section extension is less than described first length or described second length.
2. golf club as claimed in claim 1 is characterized in that, described waveform enhancing portion is positioned at described top.
3. golf club as claimed in claim 1 is characterized in that, described waveform enhancing portion is positioned at described bottom.
4. golf club as claimed in claim 1 is characterized in that, described waveform enhancing portion is positioned at described mid point m.
5. golf club as claimed in claim 1 is characterized in that, described a plurality of enhancing sections are at least 3 and strengthen section.
6. golf club as claimed in claim 5 is characterized in that, described waveform enhancing portion is positioned at the described outer surface of described basic bar.
7. golf club as claimed in claim 6 is characterized in that, the about 2cm to 20cm of length of described waveform enhancing portion.
8. golf club as claimed in claim 7 is characterized in that, described waveform enhancing portion has sinusoidal shape.
9. golf club as claimed in claim 1 is characterized in that, described enhancing section comprises carbon fibre initial rinse processing sheet and glass fibre pre-preg sheet.
A manufacturing have basic bar and on the manufacture method of golf club of the waveform enhancing portion that has, comprising:
The base segment 2B that will have the pre-preg sheet of a plurality of finger 2A is applied on the part of basic bar;
Twine described finger 2A around described basic bar and have a plurality of waveform enhancing portions that strengthen section on the described basic bar to be provided at;
The described excellent bar that processing has a waveform enhancing portion has the golf club of waveform enhancing portion with formation.
11. method as claimed in claim 10 is characterized in that, described waveform enhancing portion comprises that at least 3 strengthen section.
12. method as claimed in claim 10 is characterized in that, described basic bar has top, mid point m and bottom, and described waveform enhancing portion is positioned at least one of described top, mid point m and bottom.
13. method as claimed in claim 10 is characterized in that, described pre-preg sheet comprises carbon fibre initial rinse processing sheet.
14. method as claimed in claim 10 is characterized in that, described pre-preg sheet comprises with carbon fibre initial rinse handles the glass fibre pre-preg sheet that sheet combines.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR58614/96 | 1996-11-28 | ||
| KR58614/1996 | 1996-11-28 | ||
| KR1019960058614A KR19980039583A (en) | 1996-11-28 | 1996-11-28 | Golf adoption shaft with improved directionality and distance |
| US76007996A | 1996-12-04 | 1996-12-04 | |
| US08/760,079 | 1996-12-04 | ||
| US4769797P | 1997-05-23 | 1997-05-23 | |
| US60/047,697 | 1997-05-23 | ||
| US89672297A | 1997-07-18 | 1997-07-18 | |
| US08/896,722 | 1997-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1240368A CN1240368A (en) | 2000-01-05 |
| CN1102858C true CN1102858C (en) | 2003-03-12 |
Family
ID=27483171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97180675A Expired - Fee Related CN1102858C (en) | 1996-11-28 | 1997-11-26 | Golf club shaft having wave shaped reinforced part |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1007163A1 (en) |
| JP (1) | JP2001506520A (en) |
| KR (1) | KR20000057299A (en) |
| CN (1) | CN1102858C (en) |
| CA (1) | CA2272935A1 (en) |
| WO (1) | WO1998023338A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105873647A (en) * | 2014-01-08 | 2016-08-17 | 三菱丽阳株式会社 | Golf club shaft and golf club |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6302805B1 (en) * | 1999-11-22 | 2001-10-16 | Penley Sports, Llc | Golf club shaft with improved performance characteristics |
| KR100584253B1 (en) * | 2004-02-19 | 2006-05-29 | 주식회사 젠트로 | A Putter |
| JP2013248165A (en) * | 2012-05-31 | 2013-12-12 | Dunlop Sports Co Ltd | Steel shaft for golf club |
| JP5824673B2 (en) | 2012-08-09 | 2015-11-25 | 日本発條株式会社 | Golf shaft |
| USD837320S1 (en) | 2016-12-07 | 2019-01-01 | True Temper Sports, Inc. | Golf club shaft |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190420623A (en) * | 1904-09-24 | 1905-07-20 | John Gouick | Improvements in or relating to Handles for Golf Clubs and in Golf Putting Irons. |
| US2220852A (en) * | 1937-03-31 | 1940-11-05 | American Fork & Hoe Co | Golf club shaft |
| US4023801A (en) * | 1974-09-24 | 1977-05-17 | Exxon Research And Engineering Company | Golf shaft and method of making same |
| US4173670A (en) * | 1977-05-27 | 1979-11-06 | Exxon Research & Engineering Co. | Composite tubular elements |
| US5018735A (en) * | 1989-11-09 | 1991-05-28 | Sandvik Special Metals Corporation | Low kick point golf club shaft |
| US5496028A (en) * | 1995-01-30 | 1996-03-05 | Rapport Composite Co. Ltd. | Golf club shaft with two flex points |
| FR2730416A1 (en) * | 1995-02-13 | 1996-08-14 | Taylor Made Golf Co | Golf club shaft |
| US5551691A (en) * | 1995-06-07 | 1996-09-03 | Somar Corporation | Golf club shaft |
-
1997
- 1997-11-26 JP JP52486198A patent/JP2001506520A/en active Pending
- 1997-11-26 CA CA002272935A patent/CA2272935A1/en not_active Abandoned
- 1997-11-26 KR KR1019990704726A patent/KR20000057299A/en not_active Application Discontinuation
- 1997-11-26 EP EP97953062A patent/EP1007163A1/en not_active Withdrawn
- 1997-11-26 CN CN97180675A patent/CN1102858C/en not_active Expired - Fee Related
- 1997-11-26 WO PCT/US1997/021832 patent/WO1998023338A1/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105873647A (en) * | 2014-01-08 | 2016-08-17 | 三菱丽阳株式会社 | Golf club shaft and golf club |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998023338A1 (en) | 1998-06-04 |
| CN1240368A (en) | 2000-01-05 |
| KR20000057299A (en) | 2000-09-15 |
| JP2001506520A (en) | 2001-05-22 |
| EP1007163A1 (en) | 2000-06-14 |
| CA2272935A1 (en) | 1998-06-04 |
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