CN101164641A - Golf club head - Google Patents
Golf club head Download PDFInfo
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- CN101164641A CN101164641A CNA2007101231677A CN200710123167A CN101164641A CN 101164641 A CN101164641 A CN 101164641A CN A2007101231677 A CNA2007101231677 A CN A2007101231677A CN 200710123167 A CN200710123167 A CN 200710123167A CN 101164641 A CN101164641 A CN 101164641A
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- peristome
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Abstract
The present invention provides a metallic hollow golf club head in which a face plate is formed by giving consideration to the variations in hit points of general amateur golfers, and the decrease in carry is less for an off-center hit (hit deviating from the sweet spot). A golf club head includes a metallic head body having a cavity therein and an opening being formed in a face part therethrough to the cavity, and a metallic face plate welded to the opening. The opening is demarcated by an upper edge along an upper end of the face part and a U shaped curved edge located within the face part, and is also formed so that, in a state in which the head body is soled in accordance with the lie angle, a projection line on the face part surface of the perpendicular passing through the lowermost portion of the opening coincides with a projection line on the face part surface of the perpendicular passing through a ground contact point of a sole part, or the projection line drawn with the lowermost portion of the opening being the reference is positioned close to a heel part with respect to the projection line drawn with the ground contact point of the sole part; and the ratio of width on the toe side with respect to the projection line drawn with the ground contact point of the sole part is higher than the ratio of width on the heel side toward a crown part. The face plate is formed so as to have a shape matching the opening.
Description
Technical field
The present invention relates to the metal system glof club head of hollow, especially relate to panel is welded to glof club head on the peristome that forms on the pole face.
Background technology
As the metal system glof club head that is welded with the hollow of panel of the prior art, structure as shown in Figure 8 is that people are known.This metal system glof club head is laser-welded to panel 30 usefulness on the support 2B that forms around the peristome 20 and makes, wherein, peristome 20 is roughly rectangle, being formed on inside has on the face 2 of metal system bar head main body 1 of hollow bulb 10, and the shape of panel 30 is consistent with the shape of this peristome 20.Except that facial 2, bar head main body 1 also has: bizet 3, bottom 4, neck 5, toe-end 6 and heel end 7.In the prior art example, this glof club head weld strength improves, and is difficult for producing breakage and (opens (4 pages, Fig. 1)) 2004-65853 number with reference to the Japanese patent gazette spy.
In addition, in the known glof club head of another kind, facial whole bar head main body relatively is parts separately, and it is welded on the bar head main body, by the thickness of skiving face, makes facial crookedly at square stance, and the flying distance of ball is increased.Such face is subjected to the influence of bar head shapes, and its left and right directions (toe-end heel end direction) will be grown than above-below direction (top base direction).Therefore, the facial bending of square stance is that left and right directions is bigger than above-below direction degree, is that facial left and right directions is milder than above-below direction to the inclination of the center of amount of bow maximum.Therefore, because the impact of square stance, the cross section with impacting on direction (compression direction of the ball) face that intersects vertically of ball can not be compressed under the state that keeps circle, and produces the inhomogeneous compression that cross sectional shape has circular relatively distortion, is difficult to control the heading of ball.
Therefore, in order to prevent that compression degree in different directions from producing the caused directional problems of difference and ball is compressed into uniform shape, and the screen resilience when impacting is improved, existing another kind of glof club head is: the opening that forms the same length of above-below direction and left and right directions on face, and will be welded on peristome with the panel of the same shape of peristome and (open (2 pages, Fig. 1)) 2003-265656 number with reference to the Japanese patent gazette spy.
Panel of the prior art is to preestablish the golfer with the zone of face plate center to its edge, i.e. dessert zone batting develops, and does not take into full account the dispersed problem of general amateurish golfer's striking point on the ball.Japanese patent gazette spy opens prior art example in 2004-65853 number and is based on also that following viewpoint makes, promptly, in recent years, the development trend of glof club head is to substitute stainless steel stem head with titanium alloys bar head, and the bar head is maximized, in addition, have only stainless 6 one-tenth though the Young's modulus of elasticity of titanium alloy is reduced to, but its intensity has increased, so, the pole face of wall thickness reduction is bent at square stance, can improve the initial velocity (hitting speed) of ball.But if striking point on the ball departs from the dessert zone, when especially striking point on the ball is positioned at facial place such as the toe-end top that is substantially beyond the foursquare panel or heel end bottom, the flying distance of ball will reduce greatly.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of metal system hollow golf club head, owing to considered the deviation of general amateurish golfer's striking point on the ball in the panel designs of this bar head, so, even the square stance striking point on the ball departs from center (departing from the dessert zone), the reduction of the flying distance of ball is also less.
In order to reach above-mentioned purpose, the invention provides following a kind of glof club head, promptly, have in inside on the face of metal system bar head main body of hollow bulb and be formed with the peristome that is connected with hollow bulb, be welded with metal system panel on this peristome, wherein, the front shape of above-mentioned peristome is the U font, when above-mentioned bar head main body is put ground with the bar base angle, the vertical line that passes the bottom touchdown point is consistent with the projection line of vertical line on face that passes U font peristome foot at the projection line on the face, perhaps, make with the foot of peristome as the projection line of benchmark than with the position of touchdown point as the more close heel end of projection line of benchmark, along with close to bizet, relatively with the touchdown point of above-mentioned bottom projection line as benchmark, the width proportion of the toe-end side of peristome is bigger than heel end side, and above-mentioned panel is made and the corresponding to shape of above-mentioned peristome.
The invention of application this time provides following a kind of glof club head, promptly, have in inside on the face of metal system bar head main body of hollow bulb, be formed with the peristome that is connected with hollow bulb, be welded with metal panel on this peristome, wherein, the front shape of above-mentioned peristome is the U font, when above-mentioned bar head main body is put ground with the bar base angle, the vertical line that passes the bottom touchdown point is consistent with the projection line of vertical line on face that passes U font peristome foot at the projection line on the face, perhaps, make with the foot of peristome as the projection line of benchmark than with the position of touchdown point as the more close heel end of projection line of benchmark, along with close to bizet, with respect to the touchdown point of above-mentioned bottom projection line as benchmark, the width proportion of the toe-end side of peristome is bigger than heel end side, above-mentioned panel is made according to the shape of above-mentioned peristome, so, the striking point on the ball that this panel-shaped has covered general amateurish golfer distributes, even striking point on the ball departs from the center, the reduction of the flying distance of ball is also very little.
Description of drawings
Fig. 1 is the preceding stereogram of panel welding of expression embodiment.
Fig. 2 is the front view of expression peristome.
Fig. 3 is the stereogram of the bar head main body of other embodiments of expression.
Fig. 4 is the stereogram that expression is soldered to the panel on the bar head main body of Fig. 3.
Fig. 5 is the front view that all kinds of golfers' of expression striking point on the ball distributes.
Fig. 6 is the front view that expression impacts striking point on the ball in the experiment.
Fig. 7 is the front view of ratio of the length of expression horizontal direction top panel.
Fig. 8 is the stereogram of expression prior art example.
The specific embodiment
Below, describe being suitable for embodiments of the present invention with reference to accompanying drawing.
In Fig. 1, inside has on the metal system bar head main body 1 of hollow bulb 10 and is formed with the peristome 8 that is connected with hollow bulb 10.Bar head main body 1 is the same with structure of the prior art, comprising: face 2, bizet 3, bottom 4, neck 5, toe-end 6 and heel end 7.Above-mentioned peristome 8 is different with square of the prior art, and its front shape is to the oblique U font of toe-end 6 inclinations.In addition, the shape that is welded on the panel 9 on the peristome 8 is also made the U font according to the shape of peristome 8.
The foot of the bottom 8A of above-mentioned peristome 8 is represented with symbol X in Fig. 2.About peristome 8 relative is bottom 8A between wall 8B, the 8C relatively, and the foot of this bottom 8A is the X of bottom centre.Barre head main body 1 is put when ground with the bar base angle, and the projection line of vertical line on facial 2 of the touchdown point Y by bottom 4 represent with symbol A, and making this projection line A and bottom 8A (X of bottom centre) with peristome 8 is that the projection line of benchmark is consistent.Perhaps, will be that the projection line A of benchmark places than the position that is the more close heel end 7 of projection line A of benchmark with touchdown point Y with bottom 8A (X of bottom centre).By the projection line A of this touchdown point Y, along with close to bizet 3, peristome 8 is in the width W of toe-end 6 sides relatively
2Width W than heel end 7 sides
1Greatly.In addition, be centered close to projection line A when going up among Fig. 6 that the back is narrated, the striking point on the ball position C of the bottom of the striking point on the ball position B on the top of toe-end 6 sides and heel end 7 sides divides the ratio design of length of the panel in the horizontal direction 9 that is clipped to projection line as follows.At first, be the panel 9 that adopts on the bar head of 400cc at volume from the center on the projection line A to being 53: 47 to length ratio near heel end 7 near the length of toe-end 6 with from the center on the projection line A, this ratio is 53.9: 46.1 in that rod head body is long-pending when being 430cc, and this ratio is 55.6: 44.4 in that rod head body is long-pending when being 460cc.A on the B of striking point on the ball position: the value of b is: it is 57: 43 that rod head body amasss when being 400cc, is 56.8: 43.2 during 430cc, is 58.9: 41.1 during 460cc.C on the C of striking point on the ball position: the value of d is: it is 49: 51 that rod head body amasss when being 400cc, is 51: 49 during 430cc, is 52.2: 47.8 during 460cc.When striking point on the ball position B made progress 7.5mm than the center, a: b was 65～55: 35～45, and striking point on the ball position C is during than the downward 7.5mm in center, and c: d is 55～43: 45～57.In addition, from central authorities' length to the left and right sides than preferably 60～48: 40～52.
In the embodiment of Fig. 3, opening is to the part (this part is represented with symbol 80) of bizet 3 always in the upper end of peristome 8, and according to the shape of this peristome 8, the upper end that makes panel 9 is extended to the part of bizet 3 and formed extension 9A (with reference to Fig. 4).The wall ratio pole face 9B's of this extension 9A is thin.In addition, the inner surface at the core of the pole face 9B of panel 9 forms oval-shaped heavy section 9C.The oval-shaped major axis of this heavy section 9C is high and at low skewed of heel end 7 sides in toe-end 6 sides.
Above-mentioned bar head main body 1 is the titanium alloy product, and titanium alloy is begun to forge from pole, and one can be made in neck 5, face 2, bizet 3 and bottom 4.In addition, also can separately forge neck 5, make panel 9 with forging method or drawing rolling stock.Pole face 9B is the part that impacts golf, preferably adopts tiny forged material of crystallization or rolling stock.Especially the Young's modulus of elasticity of the material of panel 9 cans be compared to the low of bar head main body 1 most, to improve the resilience of ball.For example, generally adopt Ti-6A1-4V titanium alloy (Young's modulus of elasticity: about 11Gpa) make the bar head main body with forging method.Panel 9 can adopt the titanium alloy of Young'ss modulus of elasticity such as Ti-15Mo-3A1 less than 100Gpa.Analyze result of experiment by FEM (Finite ElementMethod/ FInite Element), when the Young's modulus of elasticity that has confirmed panel 9 was 70～90Gpa, the initial velocity of ball can increase.For example, make panel 9 with punching formation after, the inboard of available chemical grinding (chemical milling) dissolving bar head makes the edge thin-walled property of extension 9A and facial oval heavy section 9C.
Using rod head body to amass studies amateurish golfer's the discrete of striking point on the ball as the bar head of 430cc, its result as shown in Figure 5, the tendency that deflection top (bizet 3 sides) are arranged in facial 2 toe-end 6 sides as can be seen has the tendency of deflection bottom (bottom 4 sides) in heel end 7 sides.Therefore, prolong the extension 9A of bizet 3 upper lateral parts, make the position of bizet 3 become crooked easily,,, also can make the decrease of flying distance of ball little even depart from the center batting so the resilience of ball strengthens.In addition, also have and hit the effect that the angle uprises.The thickness of extension 9A is got final product than the thin of pole face 9B.Therefore, be preferably 0.5～3.0mm, especially be advisable with 0.6～1.2mm to the thickness of bizet 3 extended extension 9A.As shown in Figure 5, in order to cover the discrete of 9 one-tenth above striking point on the balls, the area of pole face 9B must be at 2200mm
2More than.
In addition, the extension 9A of panel 9 is preferably maximum 5～40mm to bizet 3 extended width, especially is advisable with 10～30mm.
The central part of pole face 9B can be made into thick wall part, and oval heavy section 9C can be set as follows, and promptly the gradient of heavy section 9C is along the pole face 9B that roughly is formed slopely.The thickness of oval part is 2.5～4.0mm preferably, especially is advisable with 2.8～3.8mm.And the thickness of the thinner wall section at the edge of oval part is 1.5～2.5mm preferably, especially is advisable with 2.0～2.5mm.
In addition, the angle of the ellipsoidal major axis of heavy section 9C especially is advisable with 10～30 ° with respect to ground (when setting with 56 ° at bar base angle) preferably 3～40 °.In addition, the length of major axis and the length ratio of minor axis be preferably 1: 0.2～and 1: 0.8, especially be advisable with 1: 0.4～1: 0.6.Inclination is a toe-end side height, and the heel end side is low.
In addition, the abutting part place of the extension 9A of peristome 8 and panel 9, the wall thickness of panel 9 can be identical with the wall thickness of bizet 3, sidepiece and bottom 4 around the peristome 8 of bar head main body 1 or than thin.Especially can make the part edge thin-walled property of Breadth Maximum with extension 9A.
As the Production Example of bar head of the present invention, panel 9 is formed by following method,, the rolling stock stamping-out of beta titanium alloy (Ti-15Mo-3A1) is become the U font and drawing that is.Pole face 9B is the thickest near center of face, is 3.4mm, and it is to bizet 3, sidepiece and bottom 4 stepped attenuation.The marginal portion that wall is the thinnest is 2.0mm.Clean (chemical grinding) by acid, regulate wall thickness.The heavy section 9C of center of face portion is oval, and long axis of ellipse is the heel end 7 side step-down ground inclination from the toe-end 6 side direction bottom 4 of bizet 3.The shape of heavy section 9C and the discrete of general amateurish golfer's striking point on the ball match, 20 ° at inclination angle.The shape of the ellipse of heavy section is that major axis is 18mm, and minor axis is 9mm.
Bar head main body 1 adopts the titanium alloy of Ti-6A1-4V, is made with model casting (investmentcasting) method.Facial 2 peristome 8 is, the touchdown point Y of the bottom 4 when being set to 56 ° with the bar base angle relatively is the projection line A of benchmark, is that the projection line of benchmark is positioned at than this projection line A near heel end 7 side 2mm places with the X of bottom centre of the peristome 8 of U font.The center of above-below direction facial 2, the opening length of toe-end 6 sides is 35.5mm, the opening length of heel end 7 sides is 29.4mm.In addition, more above-mentioned in vertical direction center is by the position of last 20mm, and the opening length of toe-end 6 sides is 41.0mm, and the opening length of heel end 7 sides is 25.6mm.Weld Manufactured panel 9 in chimeric mode, impact evaluation (with reference to Fig. 6).At this moment the thickness of the panel 9 of Cai Yonging is impartial 3.0mm.Facial 2 thickness also is 3.0mm, and rod head body is long-pending to be 430cc.
Being constructed as follows of glof club head (comparative example) of comparing with glof club head as shown in Figure 6: the bar head main body adopts the titanium alloy of Ti-6A1-4V, by model casting (investment casting) method, be formed in the bar head main body that face is provided with peristome, make face with forging method equally, bar head main body and face are welded into the bar head that volume is 430cc.Facial wall thickness is impartial 2.8mm.
On the bar head of the bar head of Fig. 6 and comparative example, the striking point on the ball position is on (toe-end 6 side 15mm ± go up 7.5mm) and the heel end 7 (heel end 7 side 15mm ± following 7.5mm) (with reference to Fig. 6) on the geometric center, toe-end 6 on facial 2 the face.Bar head speed (head speed) is 45m/s.In addition, embodiment
In 1～3, use the glof club head of the Young's modulus of elasticity that changes the material that forms panel 9.
[table 1]
As shown in table 1, adopted in the embodiment of the invention (Fig. 6) of panel 9 of U font, when striking point on the ball departs from the center, to compare with comparative example, the initial velocity of ball (m/s) improves.The reduction of the flying distance of ball was less when as a result, striking point on the ball departed from the center.
In addition, as mentioned above, with respect to the projection line A by touchdown point Y, along with close to bizet 3, peristome 8 is in the width W of toe-end 6 sides
2Width W than heel end 7 sides
1Greatly, in addition, further technical scheme of the present invention is described, for example, as shown in Figure 7, the center of setting the above-below direction of projection line A is C
1, be positioned at C on the projection line A
1The position of top 7.5cm is C
2, below 7.5cm the position be C
3, at this moment, at above-mentioned position C
1～C
3The place, from projection line A to the toe-end side and the ratio of the length of the panel 9 on the horizontal direction of heel end side respectively as described below: at position C
1The ratio at place as previously mentioned; At position C
2The e at place: the value of f is, is 57: 43 in that rod head body is long-pending when being 400cc, is 56.8: 43.2 during 430cc, is 58.9: 41.1 during 460cc; At position C
3The g at place: the value of h is, is 49: 51 in that rod head body is long-pending when being 400cc, is 51: 49 during 430cc, is 52.2: 47.8 during 460cc.In addition, at above-mentioned position C
2The e at place: the value of f preferably 65～55: 35～45, at above-mentioned position C
3The g at place: the value of h preferably 55～43: 45～57, at above-mentioned position C
1The place, the length of the panel 9 of the horizontal direction that begins from projection line is than preferably 60～48: 40～52.
Claims (4)
1. glof club head has in inside on the face of metal system bar head main body of hollow bulb to form the peristome that is connected with hollow bulb, is welded with panel on this peristome, it is characterized in that:
The front shape of above-mentioned peristome forms the U font,
When above-mentioned bar head main body is put ground with the bar base angle, the vertical line of the touchdown point bottom passing is consistent at the projection line of vertical line on face of projection line on the face and the foot that passes U font peristome, perhaps, make with the foot of peristome as the projection line of benchmark than with the position of touchdown point as the more close heel end of projection line of benchmark
Along with close to bizet, with respect to the touchdown point of the above-mentioned bottom projection line as benchmark, the width proportion of the toe-end side of peristome is bigger than heel end side,
Above-mentioned panel-shaped becomes and the corresponding to shape of the shape of above-mentioned peristome.
2. the glof club head of recording and narrating as claim 1 is characterized in that:
Extend to the part of bizet the upper end of above-mentioned panel.
3. the glof club head of recording and narrating as claim 2 is characterized in that:
The wall thickness of the face of the extension ratio panels of above-mentioned panel, on the contrary, facial core is to have ellipsoidal heavy section in the inboard of panel, and ellipsoidal major axis is at toe-end side height, and heel end is low.
4. as each glof club head of recording and narrating in the claim 1 to 3, it is characterized in that: above-mentioned panel is to use than the low material of bar head main body Young's modulus of elasticity to make.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006282973 | 2006-10-17 | ||
| JP282973/2006 | 2006-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101164641A true CN101164641A (en) | 2008-04-23 |
Family
ID=39333580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101231677A Pending CN101164641A (en) | 2006-10-17 | 2007-06-29 | Golf club head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101164641A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949820A (en) * | 2011-08-12 | 2013-03-06 | 邓禄普体育用品株式会社 | Golf club set |
-
2007
- 2007-06-29 CN CNA2007101231677A patent/CN101164641A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102949820A (en) * | 2011-08-12 | 2013-03-06 | 邓禄普体育用品株式会社 | Golf club set |
| CN102949820B (en) * | 2011-08-12 | 2016-04-20 | 邓禄普体育用品株式会社 | Golf clubs group |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20080423 |