CN105407986A

CN105407986A - Golf ball

Info

Publication number: CN105407986A
Application number: CN201480031051.9A
Authority: CN
Inventors: 一之濑纯
Original assignee: Nike Innovation LP
Current assignee: Nike Innovate CV USA; Nike Innovation LP
Priority date: 2013-05-31
Filing date: 2014-05-27
Publication date: 2016-03-16
Also published as: US20160067554A1; US20140357404A1; KR20150132606A; KR101643115B1; WO2014193776A1; JP2016522036A

Abstract

A golf ball includes a core and a cover surrounding the core. The cover includes a first hemispherical half and a second hemispherical half that define a seam line therebetween and along an outer surface of the cover. The seam line is non-planar and includes an integral number of cycles of a repeating wave that oscillates along the outer surface of the cover. Each cycle of the repeating wave has a 2pi radian phase, and an intermediate section is interleaved within the repeating wave at phase angles that are integral multiples of pi. Each intermediate section has a straight surface profile along the outer spherical surface.

Description

Golf

Technical field

Present invention relates in general to a kind of golf and the jointing line profile for golf.

Background technology

Golf relates to the amusement match impacting ball with the club that arcuately path is brandished repeatedly.When ball is impacted by club, ball will typically fly through specific flight path/track aloft, and can have specific spin rate.

In the design of traditional golf, in order to create flight path more stable and longer generally when suitably impacting on the outer surface that multiple indenture is included in golf.Interaction between indenture and oncoming air-flow affects the rise of ball, resistance and flight stability characteristic; But uniformity of these impacts depend on being uniformly distributed and/or symmetry of patterns of indentations around ball.

Golf is by typically injection moulding or compression forming are that spherical polymeric material is made.These forming processes any one in, two moulds (halves of mould) can be met at mutual interface, and can coordinate to limit the space of the accurate shape forming ball.Use the injection moulding or technology for compressing and forming understood, ball can be formed in this space.When ball removes from mould, ball may have shaping overlap or may other excess material of being formed of interface between mould.Like this, shaping overlap may be positioned at or close to " equator " of golf.

Before engaging in coating procedure, shaping overlap must be removed so that face coat is applied to golf.In traditional process, overlap can use cutting, grinding, sand milling, be removed from ball by the tumbling of abrasive media and/or any combination of low temperature deflashing.When overlap only from ball smooth, extend without indented portion (i.e. " land area ") time, these processes are very easy to and more unanimously perform.Like this, the mutual interface between mould can limit the jointing line around ball, and it does not have indenture.As mentioned above, design if inappropriate or tackle, then this profile may affect the offline mode of ball.

Summary of the invention

A kind of golf comprises spherical outside surface and is arranged on the nonplanar jointing line on spherical outside surface.Jointing line is nonplanar and comprises the repetition wave structure presenting the integer cycle of vibrating along tectal outer surface.Each cycle of repetitive wave has 2 π radian phase, and multiple interlude is staggered in repetitive wave, and interlude inserts with the phase angle of the integral multiple of π.That is, multiple interlude interlocks with the phase angle equaling π * n of ripple in repetitive wave, and wherein n is positive integer.

Each interlude has the straight line surfaces profile along spherical outside surface.Golf may further include the first pole and the second pole, and jointing line is arranged between the first and second poles simultaneously.Straight line surfaces profile can to have the single degree of curvature of the center of curvature arranged along the axis extended between the first pole and the second pole for feature.

In one configuration, each in multiple interlude is coplanar and they jointly limit joint face.First side of the joint face at the phase angle of repetitive wave in (2 π (m-1), π (2m-1)) scope extends, and wherein m is positive integer.In addition, the second side of the joint face at the phase angle of repetitive wave in (π (2m-1), 2 π m) scope extends.In a customized configuration, repetitive wave is sine curve.

Golf may further include the multiple indentures be arranged on spherical outside surface.Jointing line can not be crossing with any indenture.In one configuration, the subset of multiple indenture is set to contiguous jointing line, to make joint face crossing with each indenture in this indenture subset.

In one configuration, golf can comprise the cover layer of ball core and encircle sphere core.Cover layer comprises restriction first hemisphere face half portion and the second hemisphere face half portion, and this first hemisphere face half portion and the second hemisphere face half portion to limit between them and along the jointing line of tectal outer surface.In this configuration, multiple interlude can align along tectal common circumferential.The subset of multiple indenture can be set to contiguous jointing line, to make the circumference that formed by multiple interlude crossing with each indenture in subset.

In another configuration, jointing line can comprise an integer repeated segments, and each respective section comprises the first straight line portion, the first arch section, the second straight line portion and the second arch section.In this configuration, first arch section is arranged between the first each straight line portion in an integer repeated segments and the second straight line portion, and the second straight line portion is arranged between the first each arch section in an integer repeated segments and the second arch section.

First straight line portion of each section and the second straight line portion can align substantially along tectal circumference.First arch section can be recessed relative to the first hemisphere face half portion, and the second arch section can be convex relative to the first hemisphere face half portion.

Tectal outer surface comprises multiple indenture, and jointing line is not crossing with any indenture.In one in multiple indenture can be partly arranged in the first and second each arch sections of repeated segments each.Like this, if first and second straight line portioies of each section of jointing line align along tectal common circumferential, then circumference can be crossing with each indenture in the arch section being arranged on jointing line.

By reference to the accompanying drawings, from the detailed description of the invention for implementing below optimal mode of the present invention, feature and advantage above and other features and advantages of the present invention are easily apparent.

Accompanying drawing explanation

Fig. 1 is the schematic sectional view with ball core and tectal golf;

Fig. 2 is the diagrammatic top view of the golf with repetition patterns of indentations;

Fig. 3 is the diagrammatic side view of the jointing line be arranged on the outer surface of golf;

Fig. 2 is the schematic diagram of the composition describing compound jointing line;

Fig. 3 is the diagrammatic side view of the jointing line be arranged on the outer surface of golf, comprises the multiple indentures being set to contiguous jointing line.

Detailed description of the invention

With reference to accompanying drawing, wherein identical in each view Reference numeral is used for identifying similar or identical parts, and Fig. 1 schematically illustrates the schematic sectional view of golf 10.As shown in the figure, golf 10 has the spherical outside surface 12 that coating cap rock 14 limits.In an illustrated embodiment, golf 10 has three-piece construction, and cover layer 14 is by intermediate layer 17 encircle sphere core 16.Under any circumstance, each layer (comprising ball core and cover layer) can be concentric substantially with other layers all, shares common sphere centre 18 to make all layers.In addition, the mass distribution of each layer can be uniform, to make the barycenter of each layer and ball consistent with common sphere centre 18 as a whole.

The cover layer 14 of golf 10 can be formed by compression forming or injection moulding, and can comprise the first hemisphere face half portion 20 and the second hemisphere face half portion 22, first hemisphere face half portion 20 and the second hemisphere face half portion 22 and coordinate to come encircle sphere core 16.First and second hemisphere face half portion 20,22 can limit the jointing line 24 extended along outer surface 12.Usually, jointing line 24 can be the byproduct that cover layer manufactures, and wherein, excessive covering layer material is slightly discharged between two moulds.That is, in the fabrication process, the interface that remaining mould overlap can meet at two moulds is formed on the surface 12 of ball 10.This mould overlap can be removed by follow-up process, but such process more easily performs when the land area (that is, without indented portion) that jointing line 24/ overlap stays ball 10 is upper.

Usually, golf 10 can limit the first pole 26 be arranged in the first hemisphere face half portion 20, and is arranged on the second pole 28 in the second hemisphere face half portion 22.First and second poles 26,28 can lay respectively at the opposite side of ball 10, and can limit the main shaft 30 of ball 10.Jointing line 24 can be arranged between the first and second poles 26,28 and can generally around main shaft 30.

Golf 10 can have the indenture 32 of any required quantity, comprises, such as, between 280 and 432 total indentures, and in some instances, between 300 and 392 total indentures, and typically between 298 to 320 total indentures.In one configuration, can the size of reasonable set indenture 32 to comprise at least four kinds of different indenture types, and in some configurations, between 4 indenture types different with 16 kind, or even between 5 indenture types different with 12 kind.As will be explained in more detail below, if it is in any significant way---such as, the indenture degree of depth, indenture radius, indention diameter, indenture shape of cross section are (such as, single radius, two radius, polygonal shape, multiaspect inner surface etc.), indenture volume, indentation surface be long-pending etc.---be different from other indenture, then indenture different from another indenture " type ".

In a customized configuration, golf 10 can comprise: (a) has the first indenture type of the first diameter (such as, within the scope of 2 to 3 millimeters); B () has the second indenture type of the Second bobbin diameter (such as, within the scope of 3 to 3.6 millimeters) being greater than the first diameter; C () has the 3rd indenture type of the 3rd diameter (such as, within the scope of 3.2 to 3.8 millimeters) being greater than Second bobbin diameter; D () has the 4th indenture type of the 4th diameter (such as, within the scope of 3.4 to 4 millimeters) being greater than the 3rd diameter; (e) there is the 5th indenture type of the 5th diameter (such as, within the scope of 3.6 to 4.4 millimeters) being greater than the 4th diameter.In addition, more indenture type can be arranged in patterns of indentations, comprises the 6th indenture type at least with the 6th diameter (such as, within the scope of 4 to 6 millimeters) being greater than the 5th diameter.In some example balls of existence five kinds of indenture types, these example balls can comprise: at least 36 indentures of the first indenture type; At least 24 indentures of the second indenture type; At least 54 indentures of the 3rd indenture type; At least 30 indentures of the 4th indenture type; With at least 246 indentures of the 5th indenture type.In some example balls of existence six kinds of indenture types, this ball can comprise: at least 18 indentures of the first indenture type; At least 12 indentures of the second indenture type; At least 6 indentures of the 3rd indenture type; At least 36 indentures of the 4th indenture type; At least 270 indentures of the 5th indenture type; With at least 18 indentures of the 6th indenture type.

As shown in the overlooking in Figure 50 generally of the figure golf 10 that provides at Fig. 2, the indenture 32 be arranged on the outer surface 12 of cover layer 14 can be arranged with N number of repetition fan section 52 in each hemisphere face half portion, and wherein N is the integer in 2 to 10 scopes.In embodiment more specifically, Integer N can such as between 2 and 8, or even between 3 and 6.In the concrete example provided in fig. 2, each half portion comprises 3 fan sections 52 (120 ° of each fan section 52 ball covering on soil periphery) of repeating around pole (such as, pole 26), and totally 6 fan sections are on the surface 12 of whole ball 10.Each independent fan section 52 in this example indenture is arranged comprises line of symmetry LS (as shown in dotted line in fig. 2), and each indenture (with indented portion) in this fan section on the side of line of symmetry LS is set to each indenture (and indented portion) on the opposite side of the line of symmetry LS in identical fan section 52 in mirror image.If necessary, one or more fan section 52 can be arranged on and not comprise in the patterns of indentations half portion of line of symmetry, such as, intersperses with the fan section comprising line of symmetry.In other words, the present invention does not require that each discernible fan section of the indenture on ball must comprise line of symmetry.

As shown in Figure 2, each fan section 52 is spherical triangle regions.If necessary (although not needing), at least some in these fan sections 52 can share common ground even common side.In exemplary construction in fig. 2, meet in the common limit 54 of this hemisphere in fan section 52.Selectively, if necessary, then common ground need not be shared (such as in fan section 52, spherical triangle can separate downwards from limit 54) and/or they do not need shared common first edges (such as, other, different fan sections can between each fan section 52 with identical patterns of indentations).

Although the patterns of indentations in a hemisphere face half portion 20 (that is, indenture layout and layout) can be identical with the patterns of indentations in relative hemisphere face half portion 22, indenture 32 is not necessarily arranged with mirror image through jointing line 24.Patterns of indentations in each half portion rotatably can offset to the side-play amount within the scope of 30 ° to 30 °, even 15 ° with 2 ° to 90 °, 5 ° to 60 °, 5 ° to 45 °, 10 ° to 45 °, 10 ° each other through jointing line 24.

No matter manufacture process how, and cover layer 14 can be made up of any required material, comprises ionomeric materials (such as, can to Delaware, USA, the E.I.Du Pont Company (E.I.DuPontCompany) in Wilmington city buys), comprise material etc. thermoplastic polyurethane, comprise conventional blanket material as known in the art.In golf product, this cover layer 14 can have the nominal thickness (that is, the thickness of the position except indenture 32) within the scope of case hardness in 44 to 60 shore D hardness ranges and 0.6 to 2.0 millimeter.Here superficial hardness number uses the region place " on ball " (on the outer surface 12 of the exposure of the cover layer 14 of ball) that standard test method ASTMD-2240 is not comprising indenture 32 to measure.This hardness measurement can be made before or after the outer surface 12 finishing material (if any) being applied to cover layer 14.

Fig. 3 describes side-looking Figure 60 of the golf 10 of the design.As shown in the figure, golf 10 comprises the first hemisphere face half portion 20, second hemisphere face half portion 22 and is arranged on the jointing line 24 between the first and second respective hemisphere face half portion 20,22.First hemisphere face half portion 20 comprises the first pole 26, second hemisphere face half portion and comprises the second pole 28, and main shaft 30 extends between the first pole 26 and the second pole 28.

Jointing line 24 shown in Fig. 3 is arranged on (that is, it is not crossing with any indenture 32 or other surface characteristics) on the land area of ball 10, although itself be nonplanar.As shown in Figure 3, jointing line 24 can be similar to the complex wave 62 with multiple straightways 64 staggered between the section of repetitive wave 66.Repetitive wave 66 can have the outer surface 12 period of oscillation character along golf 10.

Fig. 4 better illustrates the structure of complex wave 62.As shown in the figure, periodic, repetitive wave 66 comprises an integer complete cycle 68, and each cycle has 2 π radian phase 70 simultaneously.In order to form complex wave 62, repetitive wave 66 divides with the integral multiple of π, and interlocks in each dividing regions and straightway 64.As in the diagram further shown in, the complex wave 62 formed by this way can comprise integer repeated segments/cycle 72, each period/the cycle 72 comprises, such as, with the first segmental arc 74, first straightway 76, second segmental arc 78 and the second straightway 80 arranged in order simultaneously.Although Fig. 4 describes as being similar to sinusoidal repetitive wave 66 generally, other configuration can comprise zigzag wave, triangular wave, trapezoidal wave, semicircle ripple, or periodically and the repetitive pattern that can be feature with 2 π phase places.

Around the whole circumference of ball 10, the section of even number straightway 64 and even number repetitive wave can be had, repeat integral multiple to make the whole cycle 72.Like this, more particularly, around the quantity of the straightway 64 of circumference can be 4 multiple.In addition, in one configuration, the wavelength of the one-period 68 of repetitive wave 66 can approximate greatly the length of straightway 64.

Referring again to Fig. 3, in one configuration, each in multiple straightway 64 can align along the latitude 82 had along the ball 10 of main shaft 30 single degree of curvature placed in the middle.As used herein, the latitude 82 of ball 10 can be arranged on the circular reference on the outer surface 12 of cover layer 14, each point on circular reference and at least one in the two poles of the earth 26,28 equidistant.In one configuration, each of multiple straightway 64---can be also referred to as in " equator " of ball 10---alignment along equidistant latitude 82 between the first pole 26 and the second pole 28.Like this, each in multiple straightway 64 can be coplanar and can limit " joint face " (that is, wherein joint face is the plane comprising and/or limited by latitude 82) generally.

In one configuration, repetitive wave 66 can phase angle in (2 π (m-1), π (2m-1)) scope joint face/latitude 82 the first side on extend, wherein m is positive integer.In addition, repetitive wave 66 can phase angle in (π (2m-1), 2 π m) scope joint face/latitude 82 the second side on extend.By this way, may occur, the adjacent segment of repetitive wave can be vibrated on the either side of joint face/latitude 82.That is, repetitive wave is relative to (2 π (m-1), π (2m-1)) the first hemisphere face half portion 20 at phase angle in scope can be recessed, wherein m is positive integer, and can be convex relative to the first hemisphere face half portion 20 at the phase angle in (π (2m-1), 2 π m) scope.In embodiment more specifically, repetitive wave 66 can be sine curve.

Fig. 5 describes the jointing line 24 relative to indenture 90, and indenture 90 is arranged on the outer surface 12 of cover layer 14, is directly close to seam 24.As herein used, " being directly close to " is intended to refer to do not have intermediate features between indenture 90 and seam 24.It is evident that, in order to clear, a considerable amount of indenture omits from Fig. 5.As further shown, jointing line 24 is not crossing with the indenture 90 of any direct vicinity, and be completely set in ball 10 single, on continuous print surface 12.Indenture 32 can have all kinds/size, although the patterns of indentations of the first hemisphere face half portion 20 can with the patterns of indentations deviation angle θ of the second hemisphere face half portion 22.In one configuration, angle θ can between about 15 ° and 60 °.

As shown in the figure, each part that indenture 92 directly can be close to repetitive wave 66 is arranged, to make each partly around in these adjacent indentures 92 of jointing line 24.In addition, joint face/latitude 82 can each crossing with the indenture 92 of the arch section of contiguous repetitive wave 66, and jointing line 24 itself then can not.

By being included in the straightway in this jointing line profile, the quantity that the grinding/overlap required after manufacturing removes can greatly reduce on the jointing line of pure sinusoid curve, and polishing will be easier, because have straight line portion in parting line.On the contrary, the various piece of repetitive wave 64 still can allow the high cross between two hemisphere face half portion 20,22 of cover layer 14.In addition, the polishing frequency bandwidth along parting line can be narrower.

Although describe in detail for implementing optimal mode of the present invention, the people being familiar with the field that the present invention relates to has put into practice various alternative design and implementation example of the present invention within the scope of the appended claims by recognizing.Be intended that and be included in above-mentioned description or shown all the elements in the accompanying drawings should be construed as merely illustrative and not restrictive.

Claims

1. have a golf for spherical outside surface, described golf comprises:

Nonplanar jointing line, described nonplanar jointing line to be arranged on described spherical outside surface and to comprise:

Present the repetition wave structure in an integer cycle, the repetitive wave in a described integer cycle is along the described spherical outside surface vibration of described golf, and each cycle of described repetitive wave has 2 π radian phase;

Multiple interlude, described multiple interlude interlocks with the phase angle equaling π * n of described ripple in described repetitive wave, and wherein n is positive integer; And

Wherein each interlude has the straight line surfaces profile along described spherical outside surface.

2. golf according to claim 1, comprises the first pole and the second pole further, and described jointing line is arranged between described first pole and described second pole;

Wherein along described spherical outside surface described straight line surfaces profile with along the axis that extends between described first pole and described second pole single degree of curvature placed in the middle for feature.

3. the golf according to any one of claim 1-2, each of wherein said multiple interlude is coplanar, and described multiple interlude jointly limits joint face.

4. golf according to claim 3, the first side of the described joint face at the phase angle of wherein said repetitive wave in (2 π (m-1), π (2m-1)) scope extends, and wherein m is positive integer; And

Second side of the described joint face at the phase angle of wherein said repetitive wave in (π (2m-1), 2 π m) scope extends.

5. the golf according to any one of claim 1-4, wherein said repetitive wave is sine curve.

6. the golf according to any one of claim 1-5, comprises multiple indenture further, and described multiple indenture is arranged on described spherical outside surface; And

Wherein said jointing line is not crossing with any described indenture.

7. golf according to claim 6, each of wherein said multiple interlude is coplanar, and described multiple interlude jointly limits joint face;

The subset of wherein said multiple indenture is set to contiguous described jointing line; And

Wherein said joint face is crossing with each indenture in described subset.

8. a golf, comprises:

Ball core;

Cover layer, described cover layer comprises coordinating and surrounds the first hemisphere face half portion and the second hemisphere face half portion of described ball core, described first hemisphere face half portion and described second hemisphere face half portion be limited to therebetween and along the jointing line of described tectal spherical outside surface; And

Wherein said jointing line is nonplanar and comprises:

Present the repetition wave structure in an integer cycle, the repetitive wave in a described integer cycle is along described tectal described outer surface vibration, and each cycle of described repetitive wave has 2 π radian phase;

9. golf according to claim 8, wherein said repetitive wave is sine curve.

10. the golf according to Claim 8 according to any one of-9, wherein said repetitive wave is relative to (2 π (m-1), π (2m-1)) the described first hemisphere face half portion at phase angle in scope is recessed, wherein m is positive integer; And

Wherein said repetitive wave is convex relative to the described first hemisphere face half portion at the phase angle in (π (2m-1), 2 π m) scope.

11. golf according to Claim 8 according to any one of-10, wherein said multiple interlude each along described tectal common circumferential alignment.

12. golf according to Claim 8 according to any one of-11, wherein said tectal described outer surface comprises multiple indenture, and wherein said jointing line is not crossing with any described indenture.

13. golf according to claim 12, the subset of wherein said multiple indenture is set to contiguous described jointing line, crossing with each indenture in described subset to make by the circumference of described multiple interlude formation.

14. golf according to Claim 8 according to any one of-13, wherein said multiple interlude is even number interlude.

15. golf according to Claim 8 according to any one of-14, each cycle of wherein said repetitive wave has wavelength; And

The length of wherein said interlude approximates greatly the described wavelength of the one-period of described repetitive wave.

16. 1 kinds of golf, comprise:

Ball core;

Cover layer, described cover layer comprises coordinating and surrounds the first hemisphere face half portion and the second hemisphere face half portion of described ball core, between described first hemisphere face half portion and described second hemisphere face half portion are limited to and along the jointing line of described tectal outer surface; And

Wherein said jointing line comprises an integer repetitive wave, and each respective section comprises the first straight line portion, the first arch section, the second straight line portion and the second arch section.

17. golf according to claim 16, wherein said first arch section is arranged on between each described first straight line portion in a described integer repeated segments and described second straight line portion; And

Wherein said second straight line portion is arranged on between each described first arch section in a described integer repeated segments and described second arch section.

18. golf according to any one of claim 16-17, wherein described first straight line portion of every section and described second straight line portion align substantially along described tectal circumference.

19. golf according to any one of claim 16-18, wherein said first arch section is recessed relative to described first hemisphere face half portion; And

Wherein said second arch section is convex relative to described first hemisphere face half portion.

20. golf according to any one of claim 16-19, wherein said tectal described outer surface comprises multiple indenture, and wherein said jointing line is not crossing with any described indenture.

21. golf according to claim 20, one in wherein said multiple indenture be partly arranged on for described repeated segments each described first and second arch sections each in; And

Described first and second straight line portioies of every section of wherein said jointing line are along described tectal common circumferential alignment; And

Wherein said circumference is crossing with each indenture in the described arch section being arranged on described jointing line.