CN1296110C - Golf club head and golf club equipped with same - Google Patents
Golf club head and golf club equipped with same Download PDFInfo
- Publication number
- CN1296110C CN1296110C CNB031367488A CN03136748A CN1296110C CN 1296110 C CN1296110 C CN 1296110C CN B031367488 A CNB031367488 A CN B031367488A CN 03136748 A CN03136748 A CN 03136748A CN 1296110 C CN1296110 C CN 1296110C
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- groove
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Abstract
A golf club head made of metal includes: a bottom surface bending gradually from a tail part to a tip part; a protruding part substantially in rectangle with a predetermined width, which protrudes downwards from a middle region of the bottom surface between the tail part and the tip part, and extends backwards from a face part; and a groove disposed on the middle of the width direction of the protruding part and uprightly extending for a certain width backwards from a position having a defined distance apart from the face part. A pair of parallel track parts are formed on both sides of the groove and a back opening is provided on the groove.
Description
Technical field
The golf club that the present invention relates to a kind of golf club head of metal shell structure and be equipped with this golf club head.
Background technology
Wish that the so-called wooden formula golf club head obtain has the sweet spot of broad and can obtain straight and longer impacting, and can not cause tiltedly beating or situation that curve is batted.
In order to address that need, the applicant has proposed a kind of golf club head of metal shell structure by Japan Patent No.2831585.This golf club head is provided with a groove, this groove be formed on basal surface width the middle part and extend back from leaving a facial position.This groove is opening overleaf.
The present invention relates to the improvement of aforementioned golf club head.
The golf club that an object of the present invention is to provide a kind of golf club head and be equipped with this golf club head, it has bigger sweet spot and lower center of gravity, and this just can access straight and longer impacting.
The golf club that another object of the present invention provides a kind of golf club head and is equipped with this golf club head, even the basal surface of golf club head in swing process with situation that ground contacts under, it also can reduce the friction between golf club head and the ground and guide golf club head as the crow flies along direction of stroke.
Summary of the invention
According to a first aspect of the invention, a kind of golf club head of metal shell structure comprises: from end section to the reclinate gradually basal surface of tip portion; Protuberance with essentially rectangular of preset width, this protuberance are outstanding downwards and extend back from a face from the zone line of the basal surface between end section and the tip portion; And groove, this groove is formed on the middle part of the width of protuberance, and the predetermined width that extends back as the crow flies from the position of leaving this face preset distance has formed the pair of parallel rail portion in the both sides of this groove thus, and this groove is in a backside openings.
According to this structure, owing to constitute the weight of the sidewall of groove, the degree of depth of the center of gravity of golf club head increases, the sweet spot that the result obtains enlarging.Therefore, can increase the hit probability in sweet spot, this straight line that can access expection again impacts.And the protuberance that is formed on the basal surface reduces center of gravity, thereby has obtained the higher emission route and the hitting distance of increase.And, because the pair of parallel rail portion is formed on the both sides of groove, even so the basal surface of golf club head in swing process with situation that ground contacts under, also can reduce the friction between golf club head and the ground and can guide golf club head as the crow flies along direction of stroke.
Preferably, each this rail portion is provided with straight guide groove at the middle part of its width.This straight guide groove has further been improved aforementioned straight impacting, and this further makes swing stable again.
Preferably, this protuberance is formed on a location, this regional width for this end section to about 1/2 to about 1/4 of the length of this tip portion.
Preferably, the top of face one side of this groove forms semi-circular shape.
Preferably, the after-opening part that this groove comprises the straight anterior of width with constant and continues from this straight front portion to extend, and this after-opening part increases gradually and has a rear end in this backside openings towards back side width.
Preferably, the length of the front portion that this is straight falls in the scope of 10-40mm, more preferably falls in the scope of 20mm-35mm; Width falls in the scope of 8-20mm, more preferably falls in the scope of 10-15mm; And the degree of depth falls into 3mm in 1/2 scope of head height, more preferably falls in the scope of 5mm-15mm.
According to another aspect of the present invention, a kind of golf club is provided with the golf club head of metal shell structure, and this golf club head comprises: from end section to the reclinate gradually basal surface of tip portion; Protuberance with essentially rectangular of preset width, this protuberance are outstanding downwards and extend back from a face from the zone line of this basal surface between this end section and this tip portion; And groove, this groove is formed on the middle part of the width of this protuberance, and the predetermined width that extends back as the crow flies from the position of leaving this face preset distance has formed the pair of parallel rail portion in the both sides of this groove thus, and this groove is in a backside openings.
By below with reference to accompanying drawing to the detailed description that the present invention did, it is obvious that the other objects and features of the invention will become.
Description of drawings
By the explanation of doing below in conjunction with accompanying drawing, will more fully describe and understand the present invention better, wherein:
Fig. 1 is the perspective view of golf club head according to an embodiment of the invention;
Fig. 2 is the perspective view of the golf club head watched from the front lower place that tilts;
Fig. 3 is the perspective view of the golf club head watched from the back lower place;
Fig. 4 is the upward view of golf club head;
Fig. 5 is the side view of the golf club head watched from tail end one side;
Fig. 6 is the front view of golf club head;
Fig. 7 is the sectional view that the line 7-7 in Fig. 4 dissects; And
Fig. 8 is the golf club that is equipped with aforementioned golf club head.
The specific embodiment
Will preferred embodiments of the invention will now be described with reference to the accompanying drawings.
Wooden formula golf club head 1 shown in Fig. 1-7 is so-called metal-wooden formula golf club head.Reference marker 2 expression metal head shells, and 3 expression fillers.Head shell 2 is the molded piece that are made of metal, and this metal for example is stainless steel, aluminium, titanium and magnesium.Method by routine forms filler 3 by packing material in shell 2, the proportion of this packing material is lighter than the proportion of shell 2, for example is foamed resin material such as rigid polyurethane foam.
Can be clear that in Fig. 6 that especially the basal surface 4 of golf club head 1 is bent downwardly to tip portion 6 gradually from end section 5.As shown in Figure 2, at the middle part of the width of basal surface 4, i.e. middle section between end section 5 and the tip portion 6, the essentially rectangular protuberance 9 with preset width is outstanding downwards so that extend back from facial 7.
Because the existence of this protuberance 9, head 1 has the structure of centre of gravity, and this can access the higher emission route and the hitting distance of increase.And even the basal surface 4 of golf club head 1 contacts with ground in swing process, the contact area between basal surface 4 and the ground also can be reduced, and this is because the aforementioned structure of basal surface 4 and the existence of protuberance 9.Therefore, though at head since mistake batting or have a mind to batting and with situation that ground contacts under, the user also can beat on ball reposefully.This protuberance 9 is formed on a location, and this regional width is an end section 5 to about 1/2 to about 1/4 of the length of tip portion 6.If this width departs from the aforementioned upper limit or lower limit, just can not obtain function to be described in detail below and effect.
Now, if the degree of depth of the center of gravity of golf club head 1 increases, it is bigger that sweet spot just becomes, and the degree of depth of this center of gravity is facial 7 distances to center of gravity.In order to use this specific character, in the golf club head 1 according to this embodiment, groove 10 is formed on the middle part of the width of protuberance 9, so that from leaving the position that constitutes facial 7 the shell wall preset distance predetermined width that extends back as the crow flies.Groove 10 is 8 openings overleaf.
In detail, groove 10 is formed on the middle part of the width of protuberance 9, so that extend back a predetermined width and 8 openings overleaf as the crow flies from the position of leaving facial 7 preset distances.Can know among Fig. 4 and see that this groove 10 extends back from the position of leaving the rear surface that constitutes facial 7 shell wall and 8 openings overleaf.
The front portion of this groove 10 forms parallel portion (straight front portion) 11, have the constant width W or the width of approximately constant, and its rear portion forms the opening portion (after-opening part) 12 that the back width increases, and 8 width increase this opening portion 12 gradually from parallel portion 11 continuation extensions and towards the back side.The top of face one side of parallel portion 11 forms partly encloses shape, and the bottom of parallel portion 11 forms circular section shape, as shown in Figure 7.
As mentioned above, owing to groove 10 is formed on the protuberance 9, so pair of parallel rail portion 9a and 9a are formed on the both sides of groove 10.
On the basal surface 4 of the metal-wooden formula head 1 by protuberance 9 being formed on the metal shell structure, as shown in Figure 7, upright metal shell wall 13 and 13 just is formed on the both sides of groove 10.Therefore, because the weight of these shell walls 13 and 13, the degree of depth of the center of gravity of head 1 can be increased, and can realize having the structure of centre of gravity.
In this golf club head 1, because groove 10 is formed on the middle part of the width of protuberance 9, a predetermined width and 8 openings overleaf so that extend back as the crow flies from the position of leaving facial 7 preset distances, as mentioned above, the degree of depth of the center of gravity of head 1 will be because of the weight of the shell wall 13 of the both sides of groove 10 and 13 and is increased, and sweet spot also can increase.Therefore, can increase the hit probability in sweet spot, this straight line that can access expection again impacts, and can not occur tiltedly beating or situation that curve is batted.
And the shell wall 13 of the both sides of groove 10 and 13 existence and the existence that is formed on the protuberance 9 on the basal surface 4 have combined so that center of gravity is lower, thus the hitting distance that has obtained higher emission route and further increased.
And, because groove 10 has the after-opening part 12 that 8 width increase gradually towards the back side, so the existence of the shell wall 13 of after-opening part 12 and 13 makes that the degree of depth of center of gravity is bigger and center of gravity is lower.Particularly, be that a facial side has straight front portion 11 because groove 10 forms in the front side, so its shell wall 13 and 13 is arranged along fore-and-aft direction.Therefore, two shell walls 13 and 13 at square stance with impact energy concentrated area and explosive being sent on the ball.Therefore, can obtain so-called hammer effect, this has further increased hitting distance.And, because two sidewalls 13 and 13 of straight front portion 11 are spaced apart from each other and are positioned at the position of leaving the rear surface that constitutes facial 7 shell wall, keep stable so can make to impact.
As mentioned above, basal surface 4 is bent downwardly to tip portion 6 gradually from end section 5, and protuberance 9 is formed on the basal surface 4.And groove 10 is formed on the protuberance 9 so that 8 openings have overleaf formed pair of parallel rail portion 9a and 9a thus.Therefore, even under the basal surface 4 of head 1 and situation that ground contacts, the user also can beat on ball reposefully, and this is because the resistance between head 1 and the ground reduces owing to the existence of the after-opening part 12 of protuberance 9, groove 10 and groove 10.And, because groove 10 has straight part 11, so when basal surface 4 contacted with ground in swing process, straight part 11 is guiding head 1 as the crow flies.Therefore, though basal surface 4 in swing process with situation that ground contacts under, the user also can hit and impact ball farther as the crow flies.This function will further be enhanced to parallel orbit part 9a and 9a by this of protuberance 9, and therefore can further improve the straight degree of batting and the stability that impacts.
And, because this groove 10 has the after-opening part 12 that width backward increases gradually, thus can carry out the swing had a mind to reposefully, and therefore can realize the exquisiteness batting that utilizes senior golf technology to carry out reposefully.
Preferably, the protuberance 9 height h (see figure 7) of leaving basal surface 4 falls in the scope of 1mm-5mm.If height h is less than 1mm, just very difficultly when head 1 contact with ground expect that the resistance that obtains between head 1 and the ground reduces effect in swing process.On the contrary, if height h surpasses 5mm, center of gravity just raises, and this can reduce because the high emission effect that centre of gravity causes and being reduced in keeps in the batting attitude process and the ground stability in contact, and can cause the variation of soaring and the unstability of landing.Therefore, more preferably, the height h that protuberance 9 leaves basal surface 4 falls in the scope of 1.5mm-4.0mm.
Preferably, the length L (see figure 4) of straight front portion 11 falls in the scope of 10-40mm, and the width W (see figure 4) falls in the scope of 8-20mm, and the depth D (see figure 7) falls into 3mm in 1/2 scope of head height.
If the length L of straight front portion 11 is less than 10mm, hammer effect will reduce.If length L surpasses 40mm, it is too short that after-opening part 12 just becomes, and this makes the swing of having a mind to become difficult.Therefore, more preferably, the length of straight front portion 11 falls in the scope of 20-35mm.
If the width W of straight front portion 11 becomes less than 8mm, object be trapped in possibility in the part 11 become higher and/or since the unstability that impacts that hammer effect causes may increase.On the contrary, if the width W of straight front portion 11 surpasses 20mm, the bottom enclosure wall that constitutes straight part 11 just becomes bigger, center of gravity raises, this can reduce because the high emission effect that causes of centre of gravity and being reduced in keeps in the batting attitude process and the ground stability in contact, and can cause the variation of soaring and the unstability of landing.Therefore, more preferably, the width W of straight front portion 11 falls in the scope of 10mm-15mm.
If the depth D of straight front portion 11 is less than 3mm, because increasing effect, the weight that the sidewall 13 and 13 of formation groove 10 causes becomes not enough, this can make the scope that be difficult to enlarge the sweet spot that is caused by the center of gravity degree of depth that increases, and is difficult to obtain the effect that produces owing to center of gravity is lower.If depth D surpasses 1/2 of height of head, just be difficult to the effect that acquisition produces owing to center of gravity is lower.Therefore, more preferably, the degree of depth of straight front portion 11 falls in the scope of 5mm-15mm.
In order further to strengthen the function of aforementioned grooves 10 and function and the effect of effect and aforementioned pair of tracks part 9a and 9a, guide groove 15 is formed on the middle part of width of each rail portion 9a and 9a so that extend as the crow flies.In order to show these functions and effect, preferably, the width of guide groove 15 falls in the scope of 1.5mm-3.0mm, and the degree of depth falls in the scope of 0.5mm-2.0mm.The existence of guide groove 15 can further reduce the center of gravity of head 1, reduces the resistance between basal surface and the ground when head 1 contacts with ground, and improves the straight-line guidance of head 1.
In this embodiment, in order to realize only head construction, size is set to as follows: the height h that protuberance 9 leaves basal surface 4 is 2.5mm; The depth D of groove 10 is about 7mm; The width W of the straight part 11 of groove 10 is about 13mm, and the length L of the straight part 11 of groove 10 is 30mm; And the width of guide groove 15 and the degree of depth are respectively 2.0mm and 1.5mm.
Fig. 8 has represented to be equipped with the golf club of aforementioned golf club head 1.Reference marker 20 indication rods, and 21 expression handles.
Purpose and the present invention that term in this specification and explanation only are used to explain are not limited to these terms and explanation.Should be appreciated that can have a lot of modification and alternative and can not deviate from the spirit and scope of the present invention, and scope of the present invention is limited by the accompanying claims.If there is any design variation to fall in the restriction that claims carry out, the present invention just allows such design variation, unless it departs from aim of the present invention.
Claims (21)
1. the golf club head of a metal shell structure, it comprises:
From end section to the reclinate gradually basal surface of tip portion;
Protuberance with essentially rectangular of preset width, described protuberance are outstanding downwards and extend back from a face from the zone line of the described basal surface between described end section and the described tip portion; And
Groove, this groove is formed on the middle part of the width of described protuberance, and the predetermined width that extends back as the crow flies from the position of leaving described facial preset distance has formed the pair of parallel rail portion in the both sides of described groove thus, and described groove is in a backside openings.
2. golf club head according to claim 1 is characterized in that, each described rail portion is provided with straight guide groove at the middle part of its width.
3. golf club head according to claim 2 is characterized in that the width of described guide groove falls in the scope of 1.5mm-3.0mm, and the degree of depth falls in the scope of 0.5mm-2.0mm.
4. golf club head according to claim 1 is characterized in that described protuberance is formed on a location, and this regional width is described end section to about 1/2 to about 1/4 of the length of described tip portion.
5. golf club head according to claim 1 is characterized in that described groove has the top of a facial side, and this top has semi-circular shape.
6. golf club head according to claim 1, it is characterized in that, the after-opening part that described groove comprises the straight anterior of width with constant and continues from described straight front portion to extend, and wherein said after-opening part increases gradually and has a rear end in described backside openings towards back side width.
7. golf club head according to claim 1 is characterized in that, the length of described straight front portion falls in the scope of 10-40mm, and width falls in the scope of 8-20mm, and the degree of depth falls into 3mm in 1/2 scope of head height.
8. golf club head according to claim 7 is characterized in that, the described length of described straight front portion falls in the scope of 20-35mm.
9. golf club head according to claim 7 is characterized in that, the described width of described straight front portion falls in the scope of 10-15mm.
10. golf club head according to claim 7 is characterized in that, the described degree of depth of described straight front portion falls in the scope of 5-15mm.
11. golf club head according to claim 1 is characterized in that, also comprises:
Be formed on the straight guide groove at middle part of the width of each described rail portion;
Wherein said protuberance is formed on a location, and this regional width is described end section to about 1/2 to about 1/4 of the length of described tip portion;
The after-opening part that wherein said groove comprises the straight anterior of width with constant and continues from described straight front portion to extend, and wherein said after-opening part increases gradually and has a rear end in described backside openings towards back side width;
The length of wherein said straight front portion falls in the scope of 10-40mm, and width falls in the scope of 8-20mm, and the degree of depth falls into 3mm in 1/2 scope of head height; And
The width of wherein said guide groove falls in the scope of 1.5mm-3.0mm, and the degree of depth falls in the scope of 0.5mm-2.0mm.
12. the golf club with golf club head of metal shell structure, described golf club head comprises:
From end section to the reclinate gradually basal surface of tip portion;
Protuberance with essentially rectangular of preset width, described protuberance are outstanding downwards and extend back from a face from the zone line of the described basal surface between described end section and the described tip portion; And
Groove, this groove is formed on the middle part of the width of described protuberance, and the predetermined width that extends back as the crow flies from the position of leaving described facial preset distance has formed the pair of parallel rail portion in the both sides of described groove thus, and described groove is in a backside openings.
13. golf club according to claim 12 is characterized in that, each described rail portion is provided with straight guide groove at the middle part of its width.
14. golf club according to claim 13 is characterized in that, the width of described guide groove falls in the scope of 1.5mm-3.0mm, and the degree of depth falls in the scope of 0.5mm-2.0mm.
15. golf club according to claim 12 is characterized in that, described protuberance is formed on a location, and this regional width is described end section to about 1/2 to about 1/4 of the length of described tip portion.
16. golf club according to claim 12 is characterized in that, described groove has the top of a facial side, and this top has semi-circular shape.
17. golf club according to claim 12, it is characterized in that, the after-opening part that described groove comprises the straight anterior of width with constant and continues from described straight front portion to extend, and wherein said after-opening part increases gradually and has a rear end in described backside openings towards back side width.
18. golf club according to claim 12 is characterized in that, the length of described straight front portion falls in the scope of 10-40mm, and width falls in the scope of 8-20mm, and the degree of depth falls into 3mm in 1/2 scope of head height.
19. golf club according to claim 18 is characterized in that, the described length of described straight front portion falls in the scope of 20-35mm.
20. golf club according to claim 18 is characterized in that, the described width of described straight front portion falls in the scope of 10-15mm.
21. golf club according to claim 18 is characterized in that, the described degree of depth of described straight front portion falls in the scope of 5-15mm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002144175A JP3936887B2 (en) | 2002-05-20 | 2002-05-20 | Golf club head and golf club having the head |
| JP144175/2002 | 2002-05-20 | ||
| JP144175/02 | 2002-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1459321A CN1459321A (en) | 2003-12-03 |
| CN1296110C true CN1296110C (en) | 2007-01-24 |
Family
ID=29545048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031367488A Expired - Fee Related CN1296110C (en) | 2002-05-20 | 2003-05-20 | Golf club head and golf club equipped with same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3936887B2 (en) |
| CN (1) | CN1296110C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826297A (en) * | 2014-02-10 | 2015-08-12 | 波斯廷株式会社 | Golf club head and golf club |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7824277B2 (en) | 2005-12-23 | 2010-11-02 | Acushnet Company | Metal wood club |
| JP4912277B2 (en) * | 2006-11-17 | 2012-04-11 | アクシュネット カンパニー | Metal wood club |
| US8870675B2 (en) * | 2011-08-24 | 2014-10-28 | Dunlop Sports Co. Ltd. | Iron golf club set and golf club head |
| US9061185B2 (en) | 2011-09-20 | 2015-06-23 | Dunlop Sports Co. Ltd. | Correlated set of golf club heads |
| JP2015000237A (en) * | 2013-06-17 | 2015-01-05 | ブリヂストンスポーツ株式会社 | Golf club head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580784A (en) * | 1984-07-13 | 1986-04-08 | Brill Edward F | Golf club including ball retrieving devices |
| US5154423A (en) * | 1991-09-18 | 1992-10-13 | Antonious A J | Iron type golf club head having a single sole runner |
| US5340106A (en) * | 1993-05-21 | 1994-08-23 | Ravaris Paul A | Moment of inertia golf putter |
-
2002
- 2002-05-20 JP JP2002144175A patent/JP3936887B2/en not_active Expired - Fee Related
-
2003
- 2003-05-20 CN CNB031367488A patent/CN1296110C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580784A (en) * | 1984-07-13 | 1986-04-08 | Brill Edward F | Golf club including ball retrieving devices |
| US5154423A (en) * | 1991-09-18 | 1992-10-13 | Antonious A J | Iron type golf club head having a single sole runner |
| US5340106A (en) * | 1993-05-21 | 1994-08-23 | Ravaris Paul A | Moment of inertia golf putter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826297A (en) * | 2014-02-10 | 2015-08-12 | 波斯廷株式会社 | Golf club head and golf club |
| CN104826297B (en) * | 2014-02-10 | 2017-11-17 | 波斯廷株式会社 | Golf club head and golf clubs |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003334266A (en) | 2003-11-25 |
| JP3936887B2 (en) | 2007-06-27 |
| CN1459321A (en) | 2003-12-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20140520 |