CN102458592A

CN102458592A - Shaft stiffening device

Info

Publication number: CN102458592A
Application number: CN2010800285379A
Authority: CN
Inventors: J.T.斯蒂茨
Original assignee: Nike International Ltd
Current assignee: Nike International Ltd
Priority date: 2009-05-12
Filing date: 2010-05-07
Publication date: 2012-05-16
Also published as: EP2429668A1; WO2010132285A1; US20100292022A1; JP2012526618A

Abstract

A golf club shaft stiffening device with a flexible tubular body including an inner circumference and a length forming a tubular cavity is described. The inner circumference of the shaft stiffening device is sized and configured to circumscribe and constrictively engage an outer surface of a shaft and to cause the shaft to have an increased stiffness characteristic, allow the location of a kick point to be modified or modify other characteristics of the golf club. The shaft stiffening device may be housed on various sections of the shaft and may be slidably adjusted or positioned on the shaft. An associated method for fitting a golf club with a shaft stiffening device is also described. The shaft stiffening devices may be provided in a kit to facilitate fitting of a golf club with appropriate shaft stiffening devices.

Description

The shaft intensifying device

Technical field

The present invention relates to the golf clubs auxiliary equipment, have the relevant golf clubs of this auxiliary equipment and the method for golf clubs and this device assembling.More specifically, the present invention relates to the shaft intensifying device, have the golf clubs of shaft intensifying device and the correlation technique of golf clubs and shaft intensifying device assembling.

Background technology

Comprise that the golfer's is relevant with the performance of golfer in game of golf usually to swinging of Back swing and down swing golfer.The golfer who can be as one man waves the club that plays golf with preferable mode can farther, more directly and more as one man impact golf.When swinging of golfer has and the preferable direction that swings, during club orientation some characteristics relevant with the swing sports path, accuracy is controlled and direction can improve.But many golfers are in the direction that swings according to certain preferred, and club orientation and motion path are waved the club aspect that plays golf and had any problem.The golfer also is difficult to impact golf with glof club head with better position, orientation and direction sometimes.Equally, glof club head speed also influences ball flight path and distance and the direction that golf is advanced after being impacted by glof club head.The golfer changes the size of ergonomics on health, strength and other characteristics and also can show the variation of many characteristics that swing comprise the speed of swinging etc.Golf rod unit and golf clubs do as a whole can based on each parts (like shaft, club head, and grip part-) characteristics and show the characteristics of variation.Shaft be influence golf important structure and can be influential to swinging of golfer, be included in the location of golf clubs and glof club head in the swinging process, orientation and speed are at each some place.Shaft influences the performance of club, and expectation to preferable golf clubs performance, comprise preferable and the member characteristic of improving, especially for the parts as shaft.

Summary of the invention

Aspects more of the present invention relate to the golf ball bar body intensifying device.This shaft intensifying device can be the flexible tubular body, and it comprises inner peripheral and length, forms tubular cavity.The inner peripheral size is set at and is configured to external and engages the outer surface of shaft with tightening and make shaft have the stiffness characteristics of increase.Shaft is dismountable.Tubular body can also be a monomer members in some structure.The shaft intensifying device can adjustment slidably on shaft.

On the other hand; Aspects more of the present invention relate to golf clubs, and it has glof club head, are attached to glof club head and hold the shaft of grip part; Be contained in the shaft intensifying device on the outer surface of shaft slidably, thereby the shaft intensifying device is beyond shaft.The shaft intensifying device can size, shape set for or otherwise be configured to the specific region of joint shaft with tightening.

On the other hand, provide a kind of with the shaft of golf clubs and the method for shaft intensifying device assembling.Method can comprise the stiffness characteristics of confirming golf ball bar body, uses measurement mechanism to confirm the required stiffness characteristics of shaft and the specific shaft intensifying device of selection from a plurality of available shaft intensifying devices based on swinging of golf clubs.Selected shaft intensifying device can place on the shaft, thereby it engages the outer surface of shaft with tightening on the given area of shaft.

On the other hand, a kind of external member with a series of shaft intensifying devices is provided.The shaft intensifying device can have different features, thereby the different piece of coupling shaft and/or different characteristics are so that shaft shows some characteristic when one or more shaft intensifying devices engage shaft with tightening.

Description of drawings

When engaging appended advantages, can understand aforementioned summary of the invention and detailed description subsequently better.

Figure 1A-1B is respectively the anterior and toe end view of golf clubs.

Fig. 2 A-2B is the sketch map that has shown the characteristics of golf clubs, comprises shaft characteristics.

Fig. 3 A-3C has shown side view, perspective view and the end-view of schematic shaft intensifying device.

Fig. 4 is the sketch map of other configurations of a plurality of shaft intensifying devices.

Fig. 5 A-5D has shown the sketch map of various shaft intensifying devices to the effect of golf clubs.

Fig. 6 A-6B is the sketch map that the shaft intensifying device is applied to golf clubs.

Fig. 7 is a kind of sketch map of configuration of the external member of shaft intensifying device (one or more).

Fig. 8 A-8C has shown the method with golf clubs and relevant apparatus assembling.

The specific embodiment

In the following explanation of each embodiment, appended accompanying drawing is made reference, it has shown the representative configuration that the present invention can implement.Should be understood that and to adopt other embodiment and can make modification without departing from the present invention.

Figure 1A-1B is respectively the preceding and toe end view of three kinds of golf clubs 199 structures.These three kinds of structures are become " iron (iron) ", " rod (driver) " and " mixing type (hybrid) " golf clubs 199 jointly.This term is known by those skilled in the art.Rod with mix golf clubs 199; Although have the difference (size that comprises glof club head between them aspect other potential exemplary potential differences; Shape and inclination angle), but the two all can more generally be classified as " rod class " golf clubs with rod type golf clubhead.Fairway Woods, rescue bar (rescue club), referring to " rod class " golf clubs on the rod of numeral number (like No. 3 rods, No. 5 rods, No. 7 rods and the other) term is the golf clubs of characteristics.Iron 199 can roughly be described to " iron class " golf clubs, has the iron type golf clubhead.Long, in, Shot Irons (or the iron of numeral number, like No. 3 irons, No. 7 irons, No. 9 irons etc.) can be considered to iron class golf clubs.Also have, the various bars of splitting, like wedge, the sand ground bar, pitching wedge and gap bar (gap wedges) also can be considered to " iron class " golf clubs.The golf clubs of push rod and other types also exists and is known in the art.

Can find out that from accompanying drawing glof club head 100 can exemplarily be believed to comprise top 110, front portion 120, toe end 130, rear portion 140, heel end 150 and bottom (or at the bottom of bar) 160.And then glof club head 100 generally includes bar neck 180, and it forms in other respects and helps glof club head 100 is connected to shaft 190.Depend on that golf clubs 199 is " rod class " or " iron class " golf clubs, glof club head 100 can have various structures and size, material, and shape, and the characteristics of other above-mentioned parts change as is known in the art.Bar neck 180 forms and is the part that usually shaft 190 is connected to glof club head 100 of glof club head 100 usually with other parts of glof club head 100.180 designs of bar neck can influence balance, sensation and the strength of club.But, bar neck 180 do not known usually by the ultimate consumer of golf equipment and more generally by individual consideration such as golf club design person and producer.The major function of bar neck 180 is other parts that shaft are connected to glof club head 100; But; Be configured to have given shape, size, the bar neck 180 of orientation and connection orientation and angle can be golf clubs 199 provides required characteristics; Be included in the quality of placing minimum on front surface 120 tops of golf clubs, for club lower center of gravity be provided thus and help golfer's distance that golf beating is farther thus.

Front surface 120 holds the face of impacting 125 usually, and this impacts face and is configured to be used to impact golf.Impact face 125 and can comprise any various characteristic, structure, shape, surface and details.For example, impact face 125 and can comprise a series of horizontal channels, it helps when impacting face 125 bump golf, to obtain required golf ball flight.The interval of these grooves, size, the degree of depth, shape, profile can change based on club type (and/or concrete club manufacturers) with orientation, to obtain required ball flight characteristic.Many other forms of surface treatment and decoration can be incorporated in the face of impacting 125, and with holes from the material of sclerosis, groove and fold and various other impact flooring, structure and structure, and it is well known in the art.

The shaft 190 of golf clubs 199 is slender members, and usually with steel or carbon fiber manufacturing, its hand with the golfer is connected to glof club head 100.The golfer keeps golf clubs 199 through catching or holding grip part 195 usually, and this grip part is accommodated on the end relative with glof club head 190 away from shaft 190.In the function of the shaft 190 of golf clubs, help the golfer to impact golf so that golf is advanced along required travel path and distance.Shaft makes the golfer can impact golf; Make and help the golfer to produce the power of inertial type that the power of this inertial type imposes on golf through glof club head 100 when glof club head 100 impacts golf because comprise the tectonic energy of golf clubs 199 of structure and the characteristics of shaft 190.Shaft 190 can be in its concrete size vary, particularly its length, and also comprises other characteristics as diameter.Usually shaft 190 is pipes of taper.In a kind of structure; Shaft has greatly about being half inch diameter and tapered gradually downward formation shaft length near the grip part up to the end (this end be contained in bar neck 180) relative with grip part 195; It is its narrowest part normally, and diameter is less than near the diameter the grip part (for example less than 0.5 inch).

Shaft 190 (it also is well known in the art) can be in length, and material is formed, rigidity, and deflection changes with other characteristics and characteristic aspect.For example, the golfer can select with various materials according to the formed shaft of the characteristics of these materials.Characteristics of shaft 190 are its composition materials.Usually, that the shaft that is used for the modern times of golf clubs comprises steel or carbon fiber.The steel pole body of steel is usually heavier and have to compare with the shaft of carbon fiber and have lower moment of torsion rate.Steel is more durable usually and compare also with carbon fiber damage is had repellence.Therefore, carbon fiber gentlier and according to selected particular carbon fiber has alternative higher moment of torsion rate and torque range usually.Early stage carbon fiber shaft is made with the individual layer composite fibre usually, and it hinders performance because allowing the shaft bending sometimes.Modern carbon fiber shaft has three usually and twines fibrage, and it provides the rigidity and the performance that strengthen.More anotherly in more common carbon fiber shaft provide, comprise Fujikura, UST, Grafalloy, Mitsubishi, Aldila and other known manufacturer through various shaft manufacturer.Two kinds of shafts of steel and carbon fiber all are known, comprise the concrete steel (one or more) and the carbon fiber (one or more) of the shaft of golf clubs 199.

In addition; Deflection and rigidity also belong to admissible exemplary feature when selecting concrete shaft or shaft material, because preferred shaft rigidity can be according to technology, strength and the characteristics that swing (comprising the speed of swinging or the path that swings) and different between the golfer.Deflection is the flexual measurement to shaft.The measurement of deflection can be a kind of relative measurement.Rigidity is the measurement how many bendings have taken place in shaft when being applied to glof club head 100 (for example impacting face 125 glof club heads 100) in given tangential force.The exemplary performance of different shaft rigidity is substantially the same between two golf clubs, is that different shafts can carry out so that golf clubs is remained on the fixed position that can support counterweight through the end relative with glof club head of clamping golf clubs.Given subsequently counterweight can be from the end suspension with glof club head of golf clubs.Specifically, counterweight can be applied to the front surface of glof club head or hang from this front surface.At one end clamped securely and counterweight is hanged from the opposite end of golf clubs 199 under the situation about, golf clubs will form and hang member.But; Shaft can not keep rigidity; But alternatively will demonstrate bending; This bending is along with more and more hanging the position that and increase from golf clubs 199 near counterweight, thereby glof club head can be considered to as fishing rod to be arc during relative end, the end of grasping fishing rod securely when power is applied to the user.At present, identical performance can form through second golf clubs 199, and it is identical basically, and just shaft shows firmer shaft.Here, because the enhanced rigidity characteristics of shaft 190, will can not show arc or crooked with the first golf clubs same degree with second golf clubs among this embodiment.Describe from other aspects,, then need more power to be applied to firmer shaft, so that shaft bending or archwise are to the degree identical with not firmer shaft (seeing Fig. 2 B) if two given shafts are only different aspect its rigidity.

The foregoing description can be related with swinging of golfer.As golfer down swing the time; The golfer begins that hand with their grasping golf clubs 199 is in grip part 195 places and shaft 190 will present bending, because glof club head 100 lags behind golfer's hand at first when beginning down swing.Golfer's hand drives shaft 190 (with the glof club head 100 at place, shaft opposite end) around golfer 10, but shaft 190 falls behind a bit.But the backwardness of shaft causes energy to be stored in the shaft 190, and its form is the bending at shaft.At this moment, along with the golfer continues down swing, shaft 190 allows its further crooked degree with continuing to be further bent to its physical stiffness.Certain some shaft 190 reach its maximum deflection (based on its rigidity of comparing with golfer's the speed of swinging) and subsequently shaft 190 will begin to discharge the energy of its storage and begin to stretch.In some cases, preferably when maximum golfer's left elbow (supposing the golfer of right-handed) becomes straight shaft 190 reach its maximum deflection.As stated, at this point, it is straight that shaft 190 will begin to become, and makes glof club head 100 gather way thus.Like what known, the club head speed that when club head 100 bump golf, increases will directly cause golf to have the initial velocity of increase, and it can cause ball to advance fartherly usually, and this is expectation usually in game of golf.In order to make the speed of glof club head 100 maximum or optimize when impacting face 125 bump, shaft 190 configurable for or be chosen as and make it in glof club head 100 and golf bump, accomplish to stretch.Usually, glof club head 100 will be with the maximal rate speeds that swings, and shaft 190 becomes straight simultaneously, because storage is released as crooked energy and potential energy.But; If glof club head 100 (with shaft 190) continues the certain distance/time of advancing after shaft becomes directly and before glof club head 100 bump golf; Then energy will lose, because but energy begins once more through shaft 190 crooked being stored the edge direction opposite with initial process down swing.Thereby what need is to let shaft always when glof club head 100 bump golf, become straight.

Golfer expectation lets golf clubs 199 have such shaft 190 thus, and its moment at bump becomes straight, with optimize its swing the power that produced and thereby the distance that makes golf advance maximum.Thereby glof club head 100 should move for given golfer swings etc. as soon as possible.Therefore, it is straight with change correct time that shaft 190 is selected as the optimization that can realize described shaft 190 according to golfer's the characteristics of swinging usually.For example; If golfer very express delivery swings but golf clubs has and is prone to curved shaft; Then golfer's batting can not be advanced as the golfer has optimized its energy that swings as far as possible far, because the energy that shaft 190 has been stored before having absorbed the energy of curve form in the shaft 190 and when bump, can not discharged it fully and the speed of glof club head 100 can not maximize when bump.The energy that swings will be wasted and final batting can not obtain maximum travel distance.On the other hand, if but the golfer swings at a slow speed and has selected very firm bar, but make that then swinging that the situation of the maximized insufficiency of energy and failure also can occur is to start from opposite reason.In this case shaft will become straight and simultaneously the golfer still be in down swing in the process and glof club head will advance to the shaft front, thereby shaft is to front curve this moment.Also have, crooked shaft is considered to be that to have wasted when swinging energy and bump glof club head 100 speed slower when bump.Also have, the travel distance of golf can not obtain maximization behind bump.Thereby; What need is to let the golfer obtain a kind of like this golf clubs 199; It comprises the shaft with the good stiffness characteristics concerning the swinging of golfer, so that golfer's the energy maximization and make golfer's batting optimization of swinging and swing.Too early or excessively the shaft 190 in evening becomes and directly can make that also the directionality of golf ball-batting changes significantly, because glof club head 100 is taked when golf clubs is advanced through hitting region and contacted golf orientation and travel path can be changed.Thereby golf can not impact at the dessert place of striking surface.Also have, golf can be taked initial direction path, and itself and required travel path have deflection.Rotation also can be applied on the ball, so that make golf advance along left-handed or dextrorotation travel path inevitably.And then; Can do not advanced by the golf that impacted according to initial required ball flight angle with respect to ground, thus ball " takeoff " or pricks ground (skulled) thereby and impacted skim over ground rather than according to the inclination angle that raises advance pass sky so that the major part of the travel distance of ball takes place when in air, advancing rather than in rolling, bounce or skim in the process on ground and take place.

Admissible another characteristics are flexing point or bending point (kick point) 205 when selection is used for the golf shaft 190 of golf clubs 199.Flexing point or bending point 205 are the positions on club golf clubs 199 length that limit, construct and/or be set to want crooked.Various shaft models can be designed to have at the bending point 205 along each diverse location of its length.In some cases, shaft 190 can be divided into have low, in or high bending point 205.The bending point 205 of shaft 190 influences the orientation when glof club head 100 impacts golf 201 of glof club head 100 usually.Thereby the position of bending point can change the taxis of batting.Thereby the golfer can select to have at ad-hoc location to compensate the golf clubs of the technological bending point 205 of the his or her taxis that swings, the speed that swings and golf.As a rule, the shaft 190 that has a high bending point 205 (near grip part 195 ends of golf clubs, the for example 205B among Fig. 5 B) will produce lower percussion and lower rotation golf ball-batting.Usually more there is the low not good enough golfer of technology to need these characteristics, because more there is the golfer of technology need make distance and accuracy when its golf ball-batting maximize.These golfers always can get to ball in the air and can aspect ball takes place by certain contact, not have difficulties usually.But these golfers trend towards improving distance and accuracy, so that they will be made its golf ball-batting more accurately and and make that strength and distance that it swings are maximum.On the contrary, low bending point 205 (the for example 205D among Fig. 5 D) needs for the not good enough golfer of height, because these golfers can trend towards it being impacted in the air impacting to have any problem and be difficult to aspect the golf.Thereby 190 have the low bending point 205 golf ball bar bodies higher percussion of formation usually near the club head end of golf clubs 100, higher rotation golf ball-batting.Like what known, high percussion (or provoking) golf ball-batting can cause golf ball-batting can not make the distance maximization of golf ball-batting.Also have, the rotation of increase can cause the inaccurate and club of golf ball-batting to advance (for the golfer of right-handed, being called as Draw or miss respectively) to a left side or the right lateral of required travel path.But these are unskilled/and high not good enough golfers have any problem aspect aerial being placed on, and the club that particularly uses some to have low inclination angle comprises height or Long Irons, or some rod, comprises rod No. one, No. 3 rods etc.Because it is to leak the batting of hitting or wasting that the golfer can not place aerial batting with ball; So more unskilled golfer can sacrifice some distances because have than the high ball flight path usually; In return be to cut the waste or leak the batting of hitting, the golfer can not positively impact ball or can not make ball enough distances of advancing with enough track percussion small balls aloft in this batting.Golfer between these two kinds of technical scopes thus need in bending point 205 (the for example 205A among Fig. 5 A), it is positioned at the centre of golf clubs and shows and mixes or the trend of the average low bending point shaft of neutralization.Although usually the golfer can select to have the shaft 190 according to the bending point 205 of the position of above-mentioned criterion, the golfer also can depend on " sensation " or individual preference is selected shaft 190, and it has and above-mentioned opposite characteristics.For example, the not good enough golfer of more unskilled height can select to have the shaft of high bending point 205B, and the golfer of high degree of skill can select to have the shaft of bending point 205D, and no matter above-mentioned tendentiousness or generality.

Because swinging of each golfer is different, the golfer can have the difference preference to shaft 190.In at least a categorizing system, shaft depends on that according to rigidity concrete deflection characteristics are divided into extremely firm (X), firm (one or more), common (R), soft (A) and (L) of dead-soft.But, there is inconsistent industry standard aspect shaft rigidity and the shaft classification, can have in some cases and be divided into " common " identical or similar rigidity by another shaft manufacturer like the shaft that is divided into " firm " by a shaft manufacturer.Moreover, as a rule, the golfer can select shaft with the distance that given club impacts golf usually according to it usually.For example, golfer and golf professional person can impact the guidance of the distance of a ball as selection shaft rigidity with a rod with the golfer.If the golfer is farther with 250 yards of the ratios that bar impacts, then they need firm shaft; 230-250 sign indicating number---common shaft; 200-230 sign indicating number---soft shaft; Less than 200 yards-dead-soft shaft.Except professional person, extremely low not good enough or the extremely strong and golfer that swings fast, the no one uses extremely firm shaft usually.Also have, these characteristics only are the specific golf clubs that exemplary classification and golfer can have specific shaft, and it presents preferred characteristics, comprises the shaft rigidity, length 290, bending point 205 positions and various other required characteristics.

Golf clubs 199 generally includes shaft 190, and this shaft is connected to head 100 at bar neck 180 places.Grip part 195 (at this place's golf hand grip or grasping golf clubs) is attached to the shaft 190 at the ends place relative with head 100.Grip part 195 is known and according to golfer's preference, ergonomics characteristics and tendentiousness (as tendentiousness of the place's of the impacting miss or the ball that edges down) and significantly different.For example, grip part is different aspect " grip part size " and periphery.They are also different aspect the concrete texture on the grip part outer surface and the grip part pattern.Grip part can be circle maybe can have line or a rib on downside, place its hand to help the golfer.Other shapes also can be expected.Grip part can comprise multiple material, comprises rubber, and polymer, and leather only give some instances.The grip part characteristics can be for example through making grip part tie up or selecting any various material based on friction properties.

Fig. 2 A-2B is the sketch map of golf clubs 199, has shown the shaft rigidity and the bending point 205A-E of the variation of golf clubs.Fig. 2 A has shown the deflection characteristics of golf clubs, and it is configured with 5 kinds of different stiffness characteristicses according to mentioned above principle.Thereby; Golf clubs 199 and specifically shaft 190A-E can show the maximum deflection state; As shown in the figure, and every kind of structure that orientation is set at golf clubs 199 has maximum deflection 255A-E separately, and its five kinds of corresponding shaft 190A-E with different rigidity are related.For example, shaft 190A-E schematically be shown as be in maximum deflection can be like extremely firm shaft 190A, firm shaft 190B, common shaft 190C, the above-mentioned state of soft shaft 190D and dead-soft shaft 190E.These displayings are exemplary and are that still, it can greatly change for understanding and clearly purpose easily.For example, in another structure, be shown as the same five kinds of shaft 190A-E that are in the maximum deflection state and can all be denoted as " common " shaft and can have different concrete stiffness characteristics, although all are called " common " shaft.Shaft 190A characteristics can be the firmest shafts, and shaft 190E falls into the line between shaft 190A and the 190E for least firm shaft and at shaft 190B-D aspect the rigidity.Fig. 2 A also shows deflection length 290, and it is equal to the length 210 of golf clubs and/or shaft in this structure, and it can deflection when power is applied to golf clubs 199.Also have, golf clubs 199 and have different shaft 190A-E five kinds of golf clubs 199 structures each as shown in the figurely have an identical bending point 205, shaft is crooked at the bending point place, and is as shown in the figure.Although these shafts 190A-E has common bending point 205, bending point 205 have diverse location between the shaft 190A-E of different-stiffness also be can expect and will describe in detail at the back literary composition.

Fig. 2 B has further shown the effect of the golf ball bar body of the given golf clubs 199 that is used to have different-stiffness.Fig. 2 B has schematically shown golf clubs 199, and it is clamped the grip part end 195 of golf clubs 199.Holder 299 (being depicted as golfer's grip part from the purpose that shows) remains on the position that rigidly fixes with the part that is contained in the grip part of grip part 195 and shaft 190 securely.Shaft is contained in the grip part 195 and is maintained at this zone in the holder can be when the power of hanging counterweight 260 forms that from relative club head 100 ends apply and present deflection or bending.Golf clubs 199 is shown as once more has a series of 5 kinds of shaft 190A-190E, as shown in the figure from being in deflected owing to the power of counterweight 260 forms such as said the result who applies.Here, because the grip part end of golf clubs 195 clamped and do not presented deflection or bending, so the physical length of deflection length 290 and shaft is different.So, the deflection length 290 of golf clubs 199 schematically is shown as length 290 like Fig. 2 B, and its end from grip part 195 extends to the opposite end of the glof club head 100 of shaft 190.

Golf clubs 199 is as shown in the figure in the changes of properties that has between the different shaft 190A-E structures of different-stiffness.Also have, shaft 190A is the firmest shaft, and shaft 190E is least firm, and other shafts are as shown in the figure thereby and correspondingly fall into this arrangement.Shown in Fig. 2 B, the bending that the firm more then shaft 190 of shaft 190 is appeared when given force 160 is applied to given position or crooked just more little.And then the sketch map of Fig. 2 B has shown that the position of bending point 205 can change to some extent, particularly comprises the shaft 190A-E with different-stiffness between shaft 190.Here, shaft 190A has minimum bending point 205A, and shaft 190E has the highest bending point 205E, and shaft 190B-D has the bending point 205B-D that falls between them.In this case, to compare with the respective length of length 210 with the deflection length 290 of golf clubs 190 be minimum in the variation of the particular location of bending point 205 positions.Given golf ball bar body 190A-E can make with a certain given stiffness characteristics and bending point 205A-E.But, preferably let the stiffness variation of shaft 190, or let the change in location of bending point 205.And then what need is, let shaft 190 an only part stiffness variation and keep the original rigidity of shaft 190 remainders.For example, but continue to appear original stiffness characteristics, then can obtain more to have rigidity, bending point and the relevant feature of customization as required through the remainder that lets the part of shaft 190 become firm permission shaft.For example, can change global stiffness, and/or the position of bending point 205 can change.Specifically; Bending point 205 can more make progress and move towards grip part 195 from shaft 190; Thereby bending point 205 is higher and when golf clubs 199 uses golf clubs 199 have the trend that higher percussion track/ball flight is provided; Or more downward along shaft 190, thereby golf clubs 199 will have the trend that lower percussion track/ball flight is provided.Through changing the rigidity of shaft 190 in some zones, bending point can correspondingly change, and the deflection length 290 of shaft 190 will change the feasible thus crooked position change that takes place.

Fig. 3 A-3C has shown side view, perspective view and the end-view of an exemplary configurations of shaft intensifying device 300, this shaft intensifying device be contained in golf clubs 199 shaft 190 cut out the part in.This structure shown in Fig. 3 A-3C of shaft intensifying device 300 comprises elongated tubular body 310, has the opposite end 311,312 of two hollows.The shaft intensifying device has length 330, and it extends to the other end 312 from an end 311.Opposite end 311,312 has inner peripheral 321,322 separately.The shaft intensifying device is inside hollow radially between inner peripheral 321,322.So, shaft intensifying device 300 holds the cylindrical passageway (not shown, because it is filled by shaft 190 in Fig. 3 A-C) of hollow, and it extends between opposite end 311 and 312.This passage is configured to hold and engage with tightening the shaft 190 of golf clubs 199.Thereby shaft intensifying device 300 snugly is assemblied in around the shaft 190, can so not be close to simultaneously on the shaft and stops shaft intensifying device 300 adjustment and the slide on the shaft 190 of golf clubs 199 slidably.Shaft intensifying device 300 can be adjusted to the concrete desired location of shaft 190.Opposite end 311; 312 can have inner peripheral 321,322, and said inner peripheral has identical size; Or said inner peripheral can the size difference with further formation conical by its shape, comprise the common shape as the continuous taper of the shaft 190 of golf clubs 199 is round-shaped.

Shaft intensifying device 300 can use various materials to form, and comprises various plastics, rubber, elastomer and known various other materials.In order to allow shaft to be applied to golf ball bar body 190, shaft intensifying device 300 can use the flexible material to form, and it pushes up last time on another surface that is applied to shaft 190, and shaft 190 demonstrates the rigidity of enhancing in this zone.For example, in an illustrative example, the shaft intensifying device can comprise longitudinal band, and this band forms along the longitudinal direction of shaft 190 above-below directions has the rigidity of increase.In the example, the shaft intensifying device can be polymer or plastics shown in another.The combination of many other materials and material can be used in the shaft intensifying device according to described herein.Applied if shaft intensifying device 300 crosses grip part 195, material require is a flexible, to allow device 300 on grip part 195, to expand and still to engage shaft 190 with tightening.As in greater detail with reference to Fig. 6, before assembling golf clubs 199 fully, be included in glof club head 100, before grip part 195 or the two were attached, the shaft intensifying device can be positioned on the shaft.Be arranged in before the structure on shaft 190 outer surfaces at the shaft intensifying device in the assembling of accomplishing golf clubs 199; With the shaft intensifying device need on the grip part or the ratio shaft 190 (for example grip part 195) of glof club head have the situation of sliding on other parts of big periphery (periphery) and compare, can use more rigidity and littler flexible material.The grip part 195 of change or replacement golf clubs is common work.So; Remove grip part 195 and be called as simple working to use shaft intensifying device 300; Thereby even be configured at shaft intensifying device 300 (comprise by abundant flexible material and constituting) make the shaft intensifying device can stretch on the stop portions of golf clubs 199 and the structure of pulling under, also need the grip part 195 of golf clubs be removed.But as described, some structure of shaft intensifying device 300 is configured to make and post sales they is being applied to the golf clubs 199 that assembles and does not dismantle any part of golf clubs 199.Thereby; When the golfer is buying and/or using golf clubs 199 (different shaft characteristics can compensate his or her swinging better) when learning; Shaft intensifying device 300 can be used and shaft characteristics comprises the overall shaft rigidity of increase, the change of the part shaft rigidity of increase or the bending point 205 of golf clubs 199 potentially.

Shaft intensifying device 300 can engage the outer surface of shaft 190 with tightening, and the inner peripheral 321,322 of the shaft intensifying device 300 of engagement state will be less than the outer surface of shaft 190 because be in.When the shaft intensifying device is drawn on the outer surface of shaft 190, the structural intergrity of shaft (as single solid steel or carbon fibre material) will keep its shape and size.Thereby; Part through stretching shaft intensifying device 300; Shaft intensifying device 300 (comprising inner peripheral 321,322 and the periphery that between it, extends) will be expanded to its material property and allow the radially a certain amount of expansion of outward direction and the degree of " stretching ".The shaft intensifying device will be placed under the swelling stress and will on the outer surface of shaft 190, apply opposite power, because the complete performance resistance to deformation of the material of shaft intensifying device 300.These opposite power make shaft intensifying device 300 engage shaft 190 with tightening.Shaft intensifying device 300 is configured so that it can bear the power that in golfer's swinging process, applies and still keep its particular location in place.Speak briefly, in swinging process along shaft about in the of 190 power and be not more than the power that is frictionally engaged of opposing, this is because shaft intensifying device 300 engages with the outer surface of shaft 190 with tightening.But; Shaft intensifying device 300 also be configured so that if golfer 10 or other users to the end 311 of shaft intensifying device 300; 312 and/or outer surface 340 apply fully directly power, then shaft intensifying device 300 will be along one or two direction of shaft 190 certain distance of sliding.Under some structure, shaft intensifying device 300 can stride across the whole length of golf ball bar body 190 and slide or between the bottom of bar neck 180 and grip part 195, slide at least.In other structures; Shaft intensifying device 300 can concrete configuration be to make it in certain zone of shaft (for example 400A-C), to adjust; But it is not any position that may slide on the shaft, only is 400A in the bottom of shaft 190; Middle part 400B, or can adjust among of the high 400C of portion.(seeing Figure 4 and 5 A-5D)

Fig. 4 is the sketch map of the multiple structure of shaft intensifying device 300.For example, the shaft of golf clubs 199 has bottom part 400A, mid portion 400B and eminence part 400C.Bottom part 400A is as shown in the figure to be the part near glof club head 100 (and near bar neck 180 degree with the concrete structure that reaches the golf clubs 199 that comprises the bar neck) of shaft.Bottom part 400A is the part of the minimum periphery periphery diameter of having usually of shaft 190, particularly when shaft 190 continues to attenuate from grip part end 195 to the club head end 100 in the opposite end of shaft 190.Eminence part 400C is the part near the grip part end 195 of golf clubs 199 of shaft 190, and mid portion 400B is the part between bottom part 400A and eminence part 400C.Shaft intensifying device 300 can specifically be constructed and setting is of a size of and is used for bottom part 400A, mid portion 400B, or among the eminence part 400C one.Should specifically set size and allow shaft intensifying device 300 more specifically to be fit to each 400A-C, comprise length and periphery.As shown in the figure,

shaft intensifying device

300A, 300B and 300C set size respectively, shape and form the 400A that tightens ground bonding part shaft 190 respectively, 400B, and 400C.In at least a structure, the shaft intensifying device has

length

330A, 330B, and 330C, it is respectively less than the part 400A of shaft, 400B, the length of 400C.Because

shaft intensifying device

300A, 300B, 300C is less than part 400A, 400B, 400C on its corresponding shaft 190; Shaft intensifying

device

300A, 300B, 300C are used for part 400A slidably adjustably; 400B, 400C is so that meticulous adjustment shaft rigidity; Change the effect of shaft intensifying device 300, comprise the concrete part that causes reinforcement of shaft 190 or the part that bending point 205 occurrence positions change.

Fig. 5 A-5D has shown shaft intensifying device 300A-300C to golf ball bar body and deflection, the sex sketch map of signal of rigidity and bending point attribute.Fig. 5 A has schematically shown golf clubs 199, and has no shaft intensifying device 300A-C.Also have, among Fig. 5 A, golf clubs 199 has deflection length 290A, as shown in the figurely extends to grip part 195 from glof club head 100.How the part that is similar to the shaft that has grip part 195 190 among Fig. 2 B does not show bending or deflection, and grip part 195 also keeps straight and rigidity usually.Also have, how clamping is in place and not crooked thus to be similar to grip part 195, the golfer will be on grip part 195 grasping golf clubs and golfer's hand will prevent shaft bending as bed knife (similar clamping element) at grip part 195 places.Should understand and note; The golfer can be at all places grasping shaft on the grip part 195; And in fact deflection length thus 290 can comprise the part of grip part 195 lower ends; But for the purpose of showing and explaining, Fig. 5 A-5D supposition grip part 195 is by the whole length maintenance rigidity of external force (like golfer's hand) along grip part 195.

Fig. 5 B-5D has schematically shown golf clubs 199, has the bottom 400A that is contained in shaft 190, the shaft intensifying device 300A-300C among middle part 400B and the high 400C of portion.Fig. 5 B-5D has also showed the influence of shaft intensifying device 300A-300C to the various characteristics of golf clubs 199, comprises the position of deflection length 290B-290D and bending point 205B-205D.Fig. 5 B has schematically shown golf clubs 199, its have be contained in shaft 190 near the shaft intensifying device 300A among the bottom part 400A of golf clubs head end 100.The shaft intensifying device engages the outside of about shaft 190 with tightening.Intensifying device 300A can comprise multiple material, comprises rubber as previously mentioned, polymer, plastics and other materials.Shaft intensifying device 300A engages the bottom part 400A of shaft with tightening, make shaft at the end 311A of the radially inner part of shaft intensifying device at shaft intensifying device 300A, length 330A between 312A below shows the stiffness characteristics of enhancing.Here, stiffness characteristics is changed, and part 400A is a rigidity thereby shaft 190 is in the bottom of the shaft of golf clubs 199.Thereby the part that represents place's deflection or bending of shaft can change along with relevant deflection length 290B.In addition, bending point 205B further upwards changes towards the eminence part 400C and the grip part 195 of golf clubs.Fig. 5 C has schematically shown golf clubs 199, and it has the shaft intensifying device 300B among the mid portion 400B of the shaft 190 that is contained in glof club head 100.Similarly, shaft intensifying device 300B is shown as to tighten to engage through it and makes mid portion 400B show the stiffness characteristics of increase and be suitable rigid characters specifically.Thereby shaft 190 has two deflection length areas 205C at present.In addition, shaft also has pair of curved point 205C in the structure of Fig. 5 C, and is positioned at the opposite side of shaft intensifying device.At last, Fig. 5 D has schematically shown golf clubs 199, and it has the shaft intensifying device 300C on the eminence part 400C that is contained in shaft 190.The eminence part 400C of golf ball bar body is shown as the stiffness characteristics with enhancing, is kept rigidity because the shaft in this zone is shown as usually by shaft intensifying device 300C.Thereby, deflection length 290D to extend below near glof club head 100 ends of glof club head 100 with reach grip part 195 places.Also have, bending point 205D has all places.

As shown in the figure and described, shaft intensifying device 300A-300C can form with various pliabilities but still tighten the ground connected structure, and it is pressed on the shaft downwards in the specific region.So, shaft 190 further supported the and shaft in this specific region will present the stiffness characteristics of enhancing.The degree that stiffness characteristics changed will depend on various characteristics; Comprise original shaft rigidity potentially; The length of shaft intensifying device 330A-330C; The material composition of shaft intensifying device 300A-300C, the stickiness of tightening joint of shaft intensifying device 300A-300C, golfer 10 the characteristics that swing and other concrete characteristics.Also as shown in the figure, shaft intensifying device 300 can further form and engage shaft 190, changing shaft characteristics as required, and does not change other characteristics of golf clubs 199.For example; For continuous and level and smooth sensation is provided to the golfer; When shaft intensifying device 300C concrete configuration is the eminence part 400C that is used for shaft; Shaft intensifying device 300C can form a kind of structure, thus end 312 in abutting connection with the bottom 196 of grip part 195, thereby the outer surface of grip part 198 is concordant with shaft intensifying device 300C.So, shaft intensifying device 300C is orientating the sensation that provides single elongated grip part 195 as shown in the figure as, rather than near the absolute construction shaft 190 tops.So, the sensation characteristics of improvement can realize, still realize that shaft characteristics changes function simultaneously on demand.

Although from schematically showing purpose; In Fig. 5 A-5C; The zone that is arranged in shaft intensifying device (one or more) 300 of shaft 190 is shown as and does not present deflection, and shaft 190 can present the deflection that reduces in these zones, rather than in various structures, does not have deflection.So; Shaft characteristics (comprising the shaft stiffness characteristics) can realize with as herein described with conforming to; Because the zone that " reduces deflection " has similarly as " not having deflection " regional characteristics and functional influence to shaft, the variation that possibly have the degree and the scope of some characteristic.Equally; Although the zone of the shaft 190 in grip part 195 is shown as the flexion zones that has among Fig. 5 A-5D; This zone has the deflection characteristics (or not having deflection) that reduce probably; This be because the golfer with its receive grasping should the zone when the club of the structure of brandishing Fig. 5 A-5D, because golfer's hand can be used as and consistent clamping element shown in Fig. 2 B.

Fig. 6 A has schematically shown and has been used for shaft intensifying device 300 is placed on a kind of structure on the shaft 190 of golf clubs 199.Golf clubs is shown as the structure of three parts, and promptly glof club head 100, grip part 195 and shaft 190.These three parts be linked together to form golf clubs 199.The golf clubs 199 that is applied in of shaft intensifying device 300 is fabricated before execution easily.Shown in Fig. 6 A; If thereby golf clubs 199 also makes up in grip part 195 and/or the glof club head 100 one or both of the remainder that is not attached to golf clubs 199 fully, then shaft intensifying device 300 can be pulled on the shaft 190 and slide into desired location.In some structure; Only can shaft intensifying device 300 be applied from one of them end only; Because thereby the enough tight shaft intensifying device of tolerance can not upwards slide along the length of shaft, this is to block because the broad shaft diameter that in sliding process, is run into will make shaft intensifying device 300 become.In the structure of Fig. 6 A, shaft intensifying device 300 is applied to shaft and is positioned at desired location.Next, use technique for fixing and adhesive technology and bonding agent well known in the art, glof club head 100 will thereby be connected to shaft 190 with grip part 195.Alternatively, as previously mentioned, some structure of shaft intensifying device can be installed the golf clubs 199 that is applied to complete construction later on.Usually in the situation of this back, if golf clubs 199 is not disassembled any degree, then the shaft intensifying device will be applied on the grip part 195 also further along shaft 195 to lower slider.Alternatively, shown in Fig. 6 B, shaft intensifying device 300 can form and make that shaft intensifying device 300 is two half ones 610 that separate; 620 structure; Half one can be suitable in shape at size and dimension in a kind of structure, and as symmetric halves, or they can change on size and dimension.No matter half one 610,620 size is similar or have difference to be assembled together, strengthen cover thereby half one 610,620 forms shafts, in case be engaged in shaft 190 then it wraps in around the shaft 190 and engaging, compression fit, or keep together with tightening.For being clasped, compression fit links in available mechanism, and bonding and various other are used to keep two structures and/or two kinds of materials.Fig. 6 B has shown and has been clasped that wherein metal connecting piece (one or more) 611 is contained in half one 610, and engages and be attached to half one 620 thus, and it has the recessed connector of supplying (one or more) 612.Although show and be described as half one, it should be understood that shaft intensifying device 300 can comprise three, four or structure more how identical or difformity and size, thus be formed for the structure of joint shaft 190, unanimity as described herein with tightening.Connection shown in these only is exemplary and can expects many other concrete syndeton and structures.

Fig. 7 is the sketch map of a structure of the external member 700 of shaft intensifying device (one or more).Here, external member 700 comprises a series of

shaft intensifying device

300A, 300B, and 300C.Each

shaft intensifying device

300A, 300B, 300C specifically form the specific part that is used for shaft 190.Here; Shaft intensifying device 300A size and dimension is set at the bottom part 400A that is coupled to shaft specially; Shaft intensifying device 300B size and dimension is set at the mid portion 400B that is coupled to shaft specially, and shaft intensifying device 300C size and dimension is set at the eminence part 400C that is coupled to shaft specially.Because the concrete characteristics of shaft, shaft intensifying device 300A-300C cross section and length variations, and shaft intensifying device 300A lacks most and have minimum cross section, and shaft intensifying device 300C grows most and have maximum cross section.In this concrete structure, external member 700 comprises housing 750, and it is configured to hold three

shaft intensifying device

300A, 300B, and 300C is at

visual keeper

710A, 710B, 710C.External member 700 and housing 750 can hang on the shelf or otherwise specifically to be watched, and displaying and suspension are to be used for visiting selection and/or purchase.External member 700 can club-like test carriage that kind be used; Thereby a plurality of shaft intensifying devices 300 can be contained in the external member; And the golfer, golf professional person and potential buyer can see and select the shaft intensifying device from a series of shaft intensifying devices that can be used for testing.For example; Shaft intensifying device 300 of monomer (the body intensifying device 300 shown in bar Fig. 3 A-3B) and multi-part shaft intensifying device 300 (shown in Fig. 6 B) and the shaft intensifying device 300 of other various structures can be contained in the external member 700, thereby the golfer can select the most suitable golfer and to the best shaft intensifying device of swinging of golfer.Use with aforesaid consistent shown in external member 700 or other similar external members, the golfer, the supplier that golf professional person or other users or golf assemble can let the golfer mate specific shaft intensifying device 300.

The golf professional person is considered to work with the golfer; With tendentiousness through the analysis golfer; Provide and revise its swing relevant guidance and suggestion and also various equipments (comprise and select club) are advised; Auxiliary they improve the game of golf level, comprise that it swings and relevant match level.And then the golf professional person can provide the golfer to select separately for some golf producer or in golf professional person's the auxiliary feature selecting scheme of selecting down.In these characteristics, the various shaft characteristics between the different golf clubs comprise length, rigidity, bending point, grip part type, sensation and many other aspects.Each golfer can have the tendentiousness of swinging, and it compares different with other golfers.Thereby before making golfer's the characteristics that swing and the tendentiousness that swings obtain paying close attention to and becoming dependence, the golfer can need the golf clubs of personalized coupling also can benefit from this.In matching process, the golfer can let the professional person pass through to observe or analyzes through any various measurements of use and analytical equipment (known in this field and be described further below) with regard to the his or her characteristics of swinging.

Fig. 8 A-8C has schematically shown the mode of coupling golf clubs 199 (comprising shaft 190).Like what known, golfer 10 can make repeatedly in front of one or more golf professional persons or golf clubs match and swinging.The action that comprises golf is observed, record, and/or measure through measurement mechanism (comprising graphics device, like digital video camera).Fig. 8 A and 8B shown respectively the golfer at the exemplary match station 1000 swings golf club and impact the vertical view and the rearview of golf.Coupling station 1000 can have any multiple structure and characteristic.Shown in Fig. 8 A-8C coupling station 1000 are indoor coupling stations.But coupling station 1000 can be an indoor or outdoors, and training field or other actual facility that can be located at the golf court place are included in specialized store and various other positions (like what known) or near.Coupling station 1000 can comprise and impact pad 1010, particularly at the coupling station during for indoor website or when website is training field a part of.However, the coupling station can be positioned at service area, meadow or other outdoor natural golf environment.Here, indoor coupling station 1000 also comprises net 1030, and golfer 10 can be in he or her batting in front of golf professional person or golf clubs match, constantly ball is impacted in this net during practice swing.Net 1030 allows coupling to occur in the more limited space, as available local limited indoor, and specialized store or training field.In net 1030 back can be background 1040 or other structures, and it can let the golfer feel that it is like being positioned at golf course.Also have, although do not specifically illustrate, other measurement mechanisms (one or more) can held or comprise to background, comprises speed or power sensor, and graphics device and other devices can be used in golfer's the matching process.

The ball of golfer's batting is advanced can be to be detected through the flight of observing whole ball at the coupling station of training field, and this training field provides sufficient space to be used to concede points to advance up to it and arrives nature halt/fall.Also have, the golfer can also impact in limited space and detect through digital video camcorder or other calculation elements, and it can confirm travel path based on the initial characteristics (comprising speed, track, rotation etc.) of batting.And then measurement mechanism can be used for further understanding path and relevant golfer's the tendentiousness of swinging.In a representative configuration, swinging of golfer can use digital video camera apparatus 1060 to record.Swinging of golfer can begin from the image of toe end to record specifically, thereby the golfer has the space of standing and towards video camera.Structure in another structure, the golfer swing can be alternatively or measured extraly device (being positioned at the position that measurement mechanism 1061 for example schematically shows) record.Through recording swinging (as in rear end and toe end) of golfer from the orientation of standing, video can images recorded compares with the path that swings with done also through the golfer that good mechanics (Fig. 8 C) is arranged.

Can be used for detecting the path that swings; The device of the relevant feature that contact orientation and golfer swing and test are videograph; Lock-on (comprising the Doppler radar technology), action detection device, speed radar device; Ball flight follow-up mechanism and detection system and similar golf analytical equipment are as known in the art.These measurement mechanisms can be orientated the

measurement mechanism

1060,1061 of locating as as shown in the figurely.These devices also can be positioned on golfer 10 the place aheads, thereby the golfer impacts on golfer's heel is distolateral at the measurement mechanism place or at golfer's rear, back.And then; Measurement mechanism can be positioned at head to be gone up or in fact is positioned at any position, thus the measurement mechanism recorded data, and a part of moving like the video image of golfer's motion or final and record and golf clubs or ball is (like speed; Direction; The orientation and other characteristics) data characteristics, as known.Can use other devices, it is absorbed in the orientation of confirming golf clubs in swinging process, and confirms that specifically golf clubs is through the orientation of hitting region when glof club head impacts golf.These devices can be and image, radar or the identical or similar device of other action follow-up mechanisms; Or device may simply be bar position plate (lie board) device, and it shows that the lower surface of golf clubs has contacted ground and club wherein through the motion of hitting region and the direction of orientation.Also have the device of above the face that impacts 125 of glof club head, locating to can be used for the data that provide relevant with a part that impacts face 125; This part is that golf is made the position that impacts; Confirming whether ball is impacted or impacted by off-centre at dessert, thereby swing or club need be adjusted with Optimization result.

Made fully repeatedly swing with " exercise " " sampling " impact the batting sample that provides required with provide mate reliably after; Golf and/or coupling professional person can use collected data; To recommend specific glof club head 100; It is equipped with the visual indicator 400 that swings, and this indicator will help the golfer to carry out golf more regularly according to traditional technology that preferably swings.The characteristics of collecting He measure can comprise the path data that swings, track, and the orientation during the golf clubs bump, the ball rotation, ball flight and golfer's body sizes and human body characteristics are just listed several.Comprising that swinging of the pattern that swings analyzed can be used for confirming the required path that swings, golfer's the tendentiousness that swings and to golfer's change when the follow-through path, thus special required specific change can be easier to visually notice.Crooked can be determined and show with the deflection characteristics, thereby but execution analysis confirm the shaft of club and whether be adapted such that the performance with the specific tendentious golfer that swings maximizes.For example, preferred rigidity, preferred bending point position and the effect that is positioned at the shaft intensifying device of some position.

Fig. 8 C has shown display 1050, and it has shown two

characteristics outputs

1051,1052 that swing accordingly, has schematically shown swinging of twice golfer with the graphic form as digital video.In a structure, swinging of being shown 1051 can be professional golfer or other golfers' (comprise " virtual golf player ", it has the technology that preferably swings) the graph image that swings.On the right, golf 1052 can be actual situation that swings of the golfer 10, and this situation is being mated in the station 1000 by being analyzed at present.Through on display 1050, doing split screen relatively, the golfer can be analyzed and mated with the golf clubs characteristics, like the visual indicator that swings; Shaft characteristics; With aligning supplementary means and other characteristics, swing with preferred mode to help the golfer, to realize preferable performance.For example, the path 1055A that swings of golfer's behind, 1055B are compared in 1051,1052 processes that swing.Equally, glof club head 1056A, the orientation of 1056B, the position 1057A of golfer's arm and hand, 1057B, and the position 1058A of head, 1058B can be by visual comparison.Can carry out other comparison and analysis, as known.Although display 1050 has shown the graphical information relevant with swinging of golfer here, display 1050 can analyze other aspect use, be included in the output of various other characteristics in the process that golfer 10 is mated.And then shown in Fig. 8 B, display 1050 can also be used to strengthen the experience of coupling and can in matching process, be seen by the golfer.But the structure of various outputs can be used for carrying out swinging to be analyzed and provides output data relevant with swinging of golfer to golfer or golf professional person.

Made at preceding text with to various embodiment described in the appended accompanying drawing of reference of the present invention schematic aspect.But the purpose of disclosed embodiment provides the example of the various aspects of the present invention's enforcement, rather than limits scope of the present invention.It will be understood by those skilled in the art that and to make many changes and modification to embodiment and do not depart from the scope of the present invention that this scope is defined by the following claims.

Claims

1. golf ball bar body intensifying device comprises:

The flexible tubular body, it comprises inner peripheral and length, to form tubular cavity, wherein the inner peripheral size is set at and is configured to external and engages the outer surface of shaft with tightening and make shaft have the stiffness characteristics of increase.

2. golf ball bar body intensifying device as claimed in claim 1, wherein the shaft intensifying device is configured to removably engage with shaft.

3. golf ball bar body intensifying device as claimed in claim 1, wherein the flexible tubular body is a monomer members.

4. golf ball bar body intensifying device as claimed in claim 1, wherein the shaft intensifying device bending point that is configured so that shaft changes when the shaft intensifying device is bonded on the difference along shaft with tightening.

5. golf ball bar body intensifying device as claimed in claim 1, wherein flexible tubular body concrete configuration for and set and to be of a size of the bottom part that cooperates shaft with tightening, in mid portion and the eminence part one and adjust slidably therein.

6. golf ball bar body intensifying device as claimed in claim 1; Wherein flexible tubular body concrete configuration is of a size of the eminence part that cooperates shaft with tightening and adjusts slidably therein with setting, and the outer surface of flexible tubular body flushes with the outer surface of grip part when wherein the flexible tubular body is configured so that the end when the end abutment grip part of tubular body.

7. golf ball bar body intensifying device as claimed in claim 1, wherein the flexible tubular body comprises a kind of in rubber, plastics and the polymer.

8. golf ball bar body intensifying device as claimed in claim 7; Also comprise; Original shaft state and joint shaft intensifying device state; The shaft intensifying device is bonded on around the part of shaft with tightening in this joint shaft intensifying device state, wherein the rigidity that has of the part between the opposite end that is contained in the shaft intensifying device of shaft in engaging shaft intensifying device state than higher in original shaft state.

9. golf clubs comprises:

Glof club head;

Shaft connects glof club head and holds grip part; With

The shaft intensifying device is contained on the outer surface of shaft slidably, thereby the shaft intensifying device is outside at shaft.

10. golf clubs as claimed in claim 9, wherein the shaft intensifying device comprises the hollow tubular body, and it has inner peripheral, and the length that this inner peripheral is configured to span centre blank pipe shape body engages shaft with tightening.

11. golf clubs as claimed in claim 10, wherein the inner peripheral of shaft intensifying device increases along the length from first end of the first hollow tubular body to second opposite end of hollow tubular body continuously.

12. golf clubs as claimed in claim 10; Wherein the hollow tubular body dimension is set at and is configured to engage the bottom part of shaft with tightening; Mid portion; In the eminence part one, the length of hollow tubular body is less than shaft bottom part, mid portion and eminence said one length in partly.

13. one kind is used for the shaft of golf clubs and the method for shaft intensifying device assembling, the step that comprises is:

Confirm the stiffness characteristics of the shaft of golf clubs;

Use measurement mechanism to confirm the required stiffness characteristics of shaft based on swinging of golf clubs; With

Based on determined required stiffness characteristics; From a plurality of available flexible tubular body shaft intensifying devices, select specific flexible tubular body shaft intensifying device; And through this specific flexible tubular body shaft intensifying device is positioned on the shaft, thereby the shaft intensifying device that this is specific is applied to the outer surface that the inner peripheral of this specific flexible tubular body shaft intensifying device of shaft engages shaft with tightening.

14. as claimed in claim 13 with the shaft of golf clubs and the method for shaft intensifying device assembling, the step that also comprises is to confirm the required bending point of shaft.

15. it is as claimed in claim 13 with the shaft of golf clubs and the method for shaft intensifying device assembling; The step that also comprises is; Based on confirming of required stiffness characteristics; The flexible tubular body shaft intensifying device that this is specific is positioned at the bottom part of shaft, mid portion, a place in the eminence part.

16. it is as claimed in claim 14 with the shaft of golf clubs and the method for shaft intensifying device assembling; The step that also comprises is; Based on confirming of the required bending point of shaft; The flexible tubular body shaft intensifying device that this is specific is positioned at the bottom part of shaft, mid portion, a place in the eminence part.

17. it is as claimed in claim 15 with the shaft of golf clubs and the method for shaft intensifying device assembling; The step that also comprises is; The part in the bottom of shaft, mid portion is adjusted flexible tubular body shaft intensifying device in one in the eminence part slidably.

18. the external member that a series of shaft intensifying devices are provided comprises:

First; The second shaft intensifying device different with the 3rd; Each comprises the hollow tubular body with inner peripheral the first, the second and the 3rd shaft intensifying device, wherein first; The hollow tubular body of the second and the 3rd shaft intensifying device and inner peripheral are set size respectively and are configured to tighten bottom part, mid portion and the eminence part that engages golf ball bar body.

19. the external member that a series of shaft intensifying devices are provided as claimed in claim 18; Wherein the first shaft intensifying device dimensional configurations is can adjustment slidably in the bottom part of the shaft of golf clubs; The second shaft intensifying device size is set at and is configured in the mid portion of the shaft of golf clubs adjustment slidably, and the 3rd shaft intensifying device size is set at and is configured to adjust slidably in the bottom part of the shaft of golf clubs.

20. the external member that a series of shaft intensifying devices are provided as claimed in claim 19, wherein corresponding the first, the second with place three shaft intensifying devices each one of comprises in rubber, plastics and the polymer.

21. the external member that a series of shaft intensifying devices are provided as claimed in claim 19, wherein each shaft intensifying device is configured to tightening the stiffness characteristics that increases the shaft of golf clubs when engaging with golf clubs.

22. the external member that a series of shaft intensifying devices are provided as claimed in claim 19, wherein to be configured to tightening when engaging with golf clubs be that the shaft of golf clubs provides different bending points to each shaft intensifying device.