US20060014593A1 - Golf club head structure for improving casting fluidity in a slurry shell - Google Patents
Golf club head structure for improving casting fluidity in a slurry shell Download PDFInfo
- Publication number
- US20060014593A1 US20060014593A1 US10/889,000 US88900004A US2006014593A1 US 20060014593 A1 US20060014593 A1 US 20060014593A1 US 88900004 A US88900004 A US 88900004A US 2006014593 A1 US2006014593 A1 US 2006014593A1
- Authority
- US
- United States
- Prior art keywords
- club head
- thickness
- golf club
- head body
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0416—Heads having an impact surface provided by a face insert
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0433—Heads with special sole configurations
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0466—Heads wood-type
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/047—Heads iron-type
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B2053/0491—Heads with added weights, e.g. changeable, replaceable
Abstract
A golf club head structure includes a first portion and a second portion adjacent thereto. The first portion and the second portion have a first thickness and a second thickness respectively. The ratio of the first thickness to the second thickness ranges between 0.56 and 1.00 that may enhance casting fluidity of molten iron in a slurry shell to thereby reduce the possibility of generating contraction cavities and slag-eyes in the golf club head.
Description
- 1. Field of the Invention
- The present invention relates to a golf club head structure for improving casting fluidity in a slurry shell. More particularly, the present invention relates to a golf club head structure consisting of two adjacent portions having changes in thickness to improve casting fluidity in a slurry shell and casting quality.
- 2. Description of the Related Art
- Fe—Mn—Al alloy has highly low density, excellently vibration-absorbable and high degree of hardness. Casting a golf club head with Fe—Mn—Al alloy, the center of gravity of the golf club head may be lowered, and a striking surface area and dimensions of the golf club head may be increased. In slush casting, inevitably, when Fe—Mn—Al alloy is employed to cast a casting of a golf club head, a finished product of the casting has many casting deficiencies of cold-shot, contraction cavities and slag-eye due to low casting fluidity in a slurry shell. Generally, the improvement of casting technology and cast molding system may eliminate deficiencies of cold-shot and slag bonding. As to the contraction cavity, a finishing and grinding process can eliminate it. However, when the contraction cavities are located in a complicated structure and an unbalanced thickness (such as an opening or an undercut) of the golf club head, it is hard to eliminate the contraction cavities by means of the finishing and grinding process. Consequently, the contraction cavities may be remained on the surface of the golf club head that may result in a decrease in the value of products. Thus, the applied scope of Fe—Mn—Al alloy in the industry is restricted and unsuitable for casting the golf club head. Hence, there is a need for a club head structure which is suitable for using Fe—Mn—Al alloy in slush casting.
- The present invention intends to provide a golf club head structure for a casting consisting of two adjacent portions having changes in thickness to improve casting fluidity in a slurry shell and casting quality. In slush casting, the ratio of width of the slurry shell allows the fluent passage of molten iron of Fe—Mn—Al alloy to eliminate contraction cavities and slag-eyes in a casting in such a way to mitigate and overcome the above problem.
- The primary objective of this invention is to provide a golf club head structure for improving casting fluidity in a slurry shell. The golf club head structure consists of two adjacent portions having changes in thickness corresponding to changes in width of the slurry shell to thereby avoid generating contraction cavities and slag-eyes in a casting.
- The golf club head structure in accordance with the present invention includes a first portion and a second portion adjacent thereto. The first portion and the second portion have a first thickness and a second thickness respectively. The ratio of the first thickness to the second thickness ranges between 0.56 and 1.00 that may enhance casting fluidity of molten iron in a slurry shell to thereby reduce the possibility of generating contraction cavities and slag-eyes in the golf club head.
- Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description and the accompanying drawings.
- The present invention will now be described in detail with reference to the accompanying drawings wherein:
-
FIG. 1 is a cross-sectional view of a golf club head structure for improving casting fluidity in a slurry shell in accordance with a first embodiment of the present invention; -
FIG. 2 is an enlarged cross-sectional view, inFIG. 1 , of the golf club head structure in accordance with the first embodiment of the present invention; -
FIG. 3 is a cross-sectional view of the slurry shell for the golf club head structure in accordance with the first embodiment of the present invention; -
FIG. 4 is an enlarged cross-sectional view, inFIG. 3 , of the slurry shell for the golf club head structure in accordance with the first embodiment of the present invention; -
FIG. 5 is a lateral schematic view of a golf club head structure for improving casting fluidity in the slurry shell in accordance with a second embodiment of the present invention; -
FIG. 6 is an enlarged lateral view, inFIG. 5 , of the golf club head structure in accordance with the second embodiment of the present invention; -
FIG. 7 is a cross-sectional view of a golf club head structure for improving casting fluidity in the slurry shell in accordance with a third embodiment of the present invention; and -
FIG. 8 is enlarged cross-sectional view, inFIG. 7 , of the golf club head structure in accordance with the third embodiment of the present invention. - Referring initially to
FIGS. 1 through 4 , a golf club head structure in accordance with a first embodiment of the present invention includes aclub head body 10 pertaining to an iron-type club head integrally formed with a single member and made of Fe—Mn—Al alloy. The single member of theclub head body 10 includes anannular flange 11, aflat plate portion 12, aweight portion 13 and acompartment 14. In assembling, thecompartment 14 is adapted to receive aweight member 15 for adjusting a center of gravity of theclub head body 10. Each of the club head sections has two adjacent portions gradually changing in thickness, a connecting portion of theflat plate portion 12 to theannular flange 11 or theflat plate portion 12 to theweight portion 13 for example. - Referring again to
FIG. 3 , aslurry shell 20 can be made by dewaxing a wax pattern (not shown) of theclub head body 10. The construction of theslurry shell 20 has acavity 21 configured with an inner space corresponding to an outer predetermined shape of theclub head body 10. Consequently, theclub head body 10 can be obtained by pouring molten iron of Fe—Mn—Al alloy into thecavity 21 of theslurry shell 20. - Referring back to
FIGS. 2 and 4 , in slush casting, theclub head body 10 should avoid generating contraction cavities and slag-eyes in a casting formed in thecavity 21 of theslurry shell 20. To accomplish this task, thecavity 21 of theslurry shell 20 has two adjacent portions with respect to a reference point (shown at “a”) changing in width. The ratio of the two widths of the any two adjacent portions ranges between 0.56 to 1.00 that may improve casting fluidity in theslurry shell 20. - Referring again to
FIG. 2 , a boundary between theflat plate portion 12 and theannular flange 11 of theclub head body 10 has changes in thickness. Theflat plate portion 12 has a thickness t1 (a thinner thickness) while theannular flange 11 having a thickness t2 (a thicker thickness). As best shown inFIG. 4 , thecavity 21 of theslurry shell 20 correspondingly includes a first width t1 (a thinner width) and a second width t2 (a thicker width). The ratio of the first width t1 to the second width t2 of thecavity 21 ranges between 0.56 and 1.00. In slush casting, molten iron of Fe—Mn—Al alloy may fluently pass through any two adjacent portions of thecavity 21 of theslurry shell 20 since thecavity 21 has such changes in width for enhancing casting fluidity of molten iron. Consequently, the structure of theclub head body 10 accomplishes to enhance casting fluidity of Fe—Mn—Al alloy that further carries out to avoid generating contraction cavities and slag-eyes in theclub head body 10 and to improve casting quality. - Referring back to
FIG. 4 , the thickness of theannular flange 11, theflat plate portion 12, theweight portion 13 and thecompartment 14 preferably ranges from 2 mm to 6 mm and more preferably from 2 mm to 4 mm, excluding the hosel (not labeled). Consequently, such thickness can reduce the possibility of generating contraction cavities and slag-eyes in theclub head body 10. - By contrast, the conventional club head body is made of stainless steel having density of 7.8 g/cm3. The
club head body 10 in accordance with the present invention is suitable for Fe—Mn—Al alloy having lower density of 6.8 g/cm3 that can reduce 15% of weight and further lower a center of gravity. To adjust a center of gravity, the weight member 15 (density of 10.0 g/cm3) received in thecompartment 14 is added for maintaining total weight of theclub head body 10. - In consideration of the thickness ranging from 2 mm to 6 mm, the
club head body 10 is unsuitable for press-fitting or snap-fitting theweight member 15 into thecompartment 14. To prevent deformation and cracks of theclub head body 10, theweight member 15 preferably connects to thecompartment 14 of theclub head body 10 by welding. In welding process, the present invention employs a nickel-welding material and a current of a welding torch preferably ranges from 100 A to 150 A that may improve heterogeneous-weldable characteristic. - Turning now to
FIGS. 5 and 6 , reference numerals of the second embodiment of the present invention have applied the identical numerals of the first embodiment. The construction of the golf club head member in accordance with the second embodiment of the present invention has similar configuration and same function as that of the first embodiment and detailed descriptions may be omitted. - Referring to
FIGS. 5 and 6 , a golf club head structure in accordance with a second embodiment of the present invention includes aclub head body 10 pertaining to a pitching wedge or a sand wedge integrally formed with a single member and made of Fe—Mn—Al alloy. In comparison with the first embodiment, theclub head body 10 of the second embodiment includes aflat plate portion 12 and aweight portion 13. A thickness of theclub head body 10 preferably ranges from 2 mm to 17 mm, excluding the hosel (not labeled). As best shown inFIG. 6 , a boundary between theflat plate portion 12 and theweight portion 13 of theclub head body 10 has changes in thickness. There exists a reference point (shown at “a”) changing in thickness for enhancing casting fluidity in a slurry shell (not shown). Theflat plate portion 12 has a thickness t1 (a thinner thickness) while theweight portion 13 having a thickness t2 (a thicker thickness). The ratio of the first thickness t1 to the second thickness t2 ranges between 0.56 and 1.00. In slush casting, molten iron of Fe—Mn—Al alloy may fluently pass through any two adjacent portions of the cavity of the slurry shell. Consequently, such thickness can reduce the possibility of generating contraction cavities and slag-eyes in theclub head body 10. In particular, theentire weight portion 13 of theclub head body 10 has any two adjacent portions to confine changes in thickness ranging between 0.56 and 1.00. - Turning now to
FIGS. 7 and 8 , a golf club head structure in accordance with a third embodiment of the present invention includes aclub head body 30 pertaining to a wood-type club head formed with a single member and made of Fe—Mn—Al alloy. In comparison with the first embodiment, theclub head body 30 of the third embodiment consists of amain body 31, afront opening 32 and a steppedportion 33, and thefront opening 32 is adapted to connect to a striking plate (not shown). A thickness of theclub head body 30 preferably ranges from 1 mm to 3 mm, excluding the hosel (not labeled). As best shown inFIG. 8 , a boundary between themain body 31 and the steppedportion 33 of theclub head body 30 has changes in thickness. There exists a reference point (shown at “a”) changing in thickness for enhancing casting fluidity in a slurry shell (not shown). The steppedportion 33 has a thickness t1 (a thinner thickness) while themain body 31 having a thickness t2 (a thicker thickness). The ratio of the first thickness t1 to the second thickness t2 ranges between 0.56 and 1.00. In slush casting, molten iron of Fe—Mn—Al alloy may fluently pass through any two adjacent portions of the cavity of the slurry shell. Consequently, such thickness can reduce the possibility of generating contraction cavities and slag-eyes in theclub head body 10. - To prevent deformation and cracks of the club head members, the thiner stepped
portion 33 of theclub head body 30 connects to an outer periphery of a striking plate by welding instead of press-fitting the striking plate into thefront opening 31. - In slush casting, the conventional structure of the club head casting in Fe—Mn—Al alloy results in generating contraction cavities and slag-eyes. However, the golf club head in accordance with the present invention has any two adjacent portions having changes in thickness to improve casting fluidity in a slurry shell and casting quality.
- Although the invention has been described in detail with reference to its presently preferred embodiment, it will be understood by one of ordinary skill in the art that various modifications can be made without departing from the spirit and the scope of the invention, as set forth in the appended claims.
Claims (8)
1. A golf club head made of Fe—Mn—Al alloy, comprising:
a club head body having at least two adjacent portions located at a reference point;
the two adjacent portions having a first thickness and a second thickness with respect to the reference point;
the ratio of the first thickness to the second thickness ranging between 0.56 to 1.00 that improves casting fluidity of molten iron of Fe—Mn—Al alloy to reduce the possibility of generating contraction cavities and slag-eyes in slush casting;
2. The golf club head as defined in claim 1 , wherein the club head body is an iron-type club head.
3. The golf club head as defined in claim 2 , wherein the club head body has a thickness ranging from 2 mm to 6 mm.
4. The golf club head as defined in claim 2 , wherein further comprising a weight member welding to the club head body.
5. The golf club head as defined in claim 1 , wherein the club head body is a pitching wedge or a sand wedge.
6. The golf club head as defined in claim 5 , wherein the club head body has a thickness ranging from 2 mm to 17 mm.
7. The golf club head as defined in claim 1 , wherein the club head body is a wood-type club head.
8. The golf club head as defined in claim 7 , wherein the club head body has a thickness ranging from 1 mm to 3 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/889,000 US20060014593A1 (en) | 2004-07-13 | 2004-07-13 | Golf club head structure for improving casting fluidity in a slurry shell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/889,000 US20060014593A1 (en) | 2004-07-13 | 2004-07-13 | Golf club head structure for improving casting fluidity in a slurry shell |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060014593A1 true US20060014593A1 (en) | 2006-01-19 |
Family
ID=35600150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/889,000 Abandoned US20060014593A1 (en) | 2004-07-13 | 2004-07-13 | Golf club head structure for improving casting fluidity in a slurry shell |
Country Status (1)
Country | Link |
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US (1) | US20060014593A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8617001B2 (en) | 2011-07-21 | 2013-12-31 | Sri Sports Limited | Golf club head |
JP2015066430A (en) * | 2013-09-30 | 2015-04-13 | 復盛應用科技股▲分▼有限公司 | Method for producing high-strength blade type iron head having thin blade |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4874171A (en) * | 1986-09-12 | 1989-10-17 | Bridgestone Corporation | Golf club set |
US6093112A (en) * | 1998-02-09 | 2000-07-25 | Taylor Made Golf Company, Inc. | Correlated set of golf clubs |
US6482104B1 (en) * | 1999-04-05 | 2002-11-19 | Acushnet Company | Set of golf clubs |
US6617050B2 (en) * | 2001-10-19 | 2003-09-09 | O-Ta Precision Casting Co., Ltd. | Low density and high ductility alloy steel for a golf club head |
US6929563B2 (en) * | 2002-06-20 | 2005-08-16 | Bridgestone Sports Co., Ltd. | Iron type golf club head |
-
2004
- 2004-07-13 US US10/889,000 patent/US20060014593A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4874171A (en) * | 1986-09-12 | 1989-10-17 | Bridgestone Corporation | Golf club set |
US6093112A (en) * | 1998-02-09 | 2000-07-25 | Taylor Made Golf Company, Inc. | Correlated set of golf clubs |
US6482104B1 (en) * | 1999-04-05 | 2002-11-19 | Acushnet Company | Set of golf clubs |
US6617050B2 (en) * | 2001-10-19 | 2003-09-09 | O-Ta Precision Casting Co., Ltd. | Low density and high ductility alloy steel for a golf club head |
US6929563B2 (en) * | 2002-06-20 | 2005-08-16 | Bridgestone Sports Co., Ltd. | Iron type golf club head |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8617001B2 (en) | 2011-07-21 | 2013-12-31 | Sri Sports Limited | Golf club head |
US9731177B2 (en) | 2011-07-21 | 2017-08-15 | Sri Sports Limited | Golf club head |
JP2015066430A (en) * | 2013-09-30 | 2015-04-13 | 復盛應用科技股▲分▼有限公司 | Method for producing high-strength blade type iron head having thin blade |
US9687704B2 (en) | 2013-09-30 | 2017-06-27 | Fusheng Precision Co., Ltd. | Method for manufacturing a high-strength blade-type golf iron head with a thin blade |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |