US20070079946A1 - Method for combining wax patterns for making a golf club head and combined wax pattern thereof - Google Patents
Method for combining wax patterns for making a golf club head and combined wax pattern thereof Download PDFInfo
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- US20070079946A1 US20070079946A1 US11/247,198 US24719805A US2007079946A1 US 20070079946 A1 US20070079946 A1 US 20070079946A1 US 24719805 A US24719805 A US 24719805A US 2007079946 A1 US2007079946 A1 US 2007079946A1
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- wax pattern
- wax
- club head
- pattern
- golf club
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
- B22C7/026—Patterns made from expanded plastic materials by assembling preformed parts
Definitions
- the present invention relates to a method for combining wax patterns for making a golf club head, and a combined wax pattern thereof having a wax-connection portion. Particularly, the present invention relates to the method for combining two pieces of the wax patterns to form a “hybrid” one-piece wax pattern for making the golf club head. More particularly, the present invention relates to the manufacturing method for injecting liquid wax into an injection notch formed between the wax patterns for making the golf club head.
- Taiwanese Patent Publication No. 514,574 discloses a conventional manufacturing method for making a golf club head. Typically, the manufacturing method includes the following steps:
- the above-mentioned manufacturing method for the golf club head requires adhering connection surfaces of the first and second wax patterns in the wax-pattern adhering operation.
- Such practice can, however, cause occurring an unwanted partition line on an outer surface of the combined wax pattern due to a boundary line existing between the first and second wax patterns.
- controlling the wax-pattern adhering operation cannot completely alleviate occurring such an unwanted partition line of the combined wax pattern.
- the partition line of the combined wax pattern needs mending by a manual process of deburring or filling liquid wax into cracks after the wax-pattern adhering operation. This additional manual process may sophisticate the manufacturing steps and reduce the manufacturing efficiency of the golf club head.
- the present invention intends to provide a method for combining two pieces of wax patterns to form a combined wax pattern, wherein at least one of connection surfaces of the wax patterns provides a cutout portion to form an injection notch on a boundary line of the combined wax pattern.
- the combined wax pattern is received a mold assembly and liquid wax is injected into the injection notch of the combined wax pattern to integrally form a wax-connection portion of the combined wax pattern. Accordingly, an unwanted partition line of the combined wax pattern generated in the conventional method is perfectly eliminated in such a way as to mitigate and overcome the above problem.
- the primary objective of this invention is to provide a method for combining wax patterns to form a hybrid one-piece design of a combined wax pattern for making a golf club head. At least one of connection surfaces of the wax patterns provides a cutout portion to form an injection notch on a boundary line of the combined wax pattern. Accordingly, an unwanted partition line of the combined wax pattern can be eliminated in a molding process.
- the secondary objective of this invention is to provide the combined wax pattern of the golf club head having a wax-connection portion.
- the wax-connection portion is formed on the boundary line between the wax patterns in the molding process. Accordingly, an outer surface located on the boundary line of the combined wax pattern is improved.
- the method for combing the wax patterns for making the golf club head in accordance with the present invention includes the steps of:
- the combined wax pattern for making the golf club head in accordance with the present invention includes a first wax pattern, a second wax pattern and a wax-connection portion.
- the first wax pattern has a first connection surface while the second wax pattern has a second connection surface.
- the first connection surface of the first wax pattern has a cutout portion to form an injection notch on a boundary line between the first wax pattern and the second wax pattern when assembled.
- the wax-connection portion is formed on the boundary line between the first wax pattern and the second wax pattern to form the combined wax pattern.
- the cutout portion of the first wax pattern has an inclined surface to form the injection notch.
- the cutout portion of the first wax pattern has a curved surface to form the injection notch.
- the second connection surface of the second wax pattern has a cutout portion aligned with that of the first connection surface of the first wax pattern to form the injection notch.
- first connection surface of the first wax pattern has a plurality of first cutout portions while the second connection surface of the second wax pattern has a plurality of second cutout portions.
- first connection surface of the first wax pattern is connected with the second connection surface of the second wax pattern, the first cutout portions and the second cutout portions are alternatively staggered to form a series of injection notches.
- the injection notch formed by the first cutout portion of the first connection surface communicates with the adjacent injection notch formed by the second cutout portion of the second connection surface when the first wax pattern and the second wax pattern are assembled.
- FIG. 1 is a flow chart of a method for combining wax patterns for making a golf club head in accordance with a preferred embodiment of the present invention
- FIG. 2 is an exploded perspective view in a first step of the method for combing the wax patterns in accordance with a first embodiment of the present invention
- FIG. 3 is an enlarged, exploded cross-sectional view of the wax patterns in accordance with the first embodiment of the present invention
- FIG. 4 is an enlarged, exploded cross-sectional view of the wax patterns in accordance with an alternative embodiment of the present invention depicted in FIG. 3 ;
- FIG. 5 is a cross-sectional view in a second step of the method for combining the wax patterns being received in a mold assembly for making the golf club head in accordance with the first embodiment of the present invention
- FIG. 6 is a cross-sectional view of a combined wax pattern for making the golf club head in accordance with the first embodiment of the present invention
- FIG. 7 is an exploded perspective view, similar to FIG. 2 , in a first step of the method for combing the wax patterns in accordance with a second embodiment of the present invention
- FIG. 8 is a top plan view of a combined wax pattern for making the golf club head in accordance with the second embodiment of the present invention.
- FIG. 9 is a partially enlarged top view, in FIG. 8 , of the combined wax pattern for making the golf club head in accordance with an alternative embodiment of the present invention.
- FIG. 10 is an exploded perspective view in a first step of the method for combing the wax patterns in accordance with a third embodiment of the present invention.
- FIG. 11 is a cross-sectional view of a combined wax pattern for making the golf club head in accordance with the third embodiment of the present invention.
- a method for combining two wax patterns for making a golf club head in accordance with a first embodiment of the present invention includes the steps of:
- the first wax pattern 11 and the second wax pattern 12 are prefabricated.
- the constructions of the first wax pattern 11 and the second wax pattern 12 shall be described in detail with reference to FIGS. 2 through 4 .
- the first wax pattern 11 has an ordinary configuration of a club head body member.
- the second wax pattern 12 has an ordinary configuration of a rear-assembling member adapted to connect to the club head body member in the intended manner.
- the first wax pattern 11 provides the first connection surface 111 at its rear side while the second wax pattern 12 provides the second connection surface 121 at its front side.
- the first connection surface 111 of the first wax pattern 11 has the first cutout portion 112 continuously formed along its outer circumference.
- the second connection surface 121 of the second wax pattern 12 has the second cutout portion 122 continuously formed along its outer circumference.
- the first connection surface 111 of the first wax pattern 11 abuts against the second connection surface 121 of the second wax pattern 12 such that the first cutout portion 112 and the second cutout portion 122 commonly constitute the injection notch 13 on the boundary line of the combined wax pattern 1 .
- one of the first cutout portion 112 and the second cutout portion 122 , or both are discontinuously extended along its outer circumference.
- the first cutout portion 112 of the first wax pattern 11 has an inclined surface inclining a predetermined angle to the first connection surface 111 so as to aid a flow of liquid wax to pass through the injection notch 13 .
- the second cutout portion 122 of the second wax pattern 12 has an inclined surface inclining a predetermined angle to the second connection surface 121 .
- the first cutout portion 112 of the first wax pattern 11 has a curved surface while the second cutout portion 122 of the second wax pattern 12 has a curved surface, as shown in FIG. 4 .
- the curved surfaces of the first wax pattern 11 and the second wax pattern 12 may enhance a flow of liquid wax to pass through the injection notch 13 in injecting operation.
- the configurations of the first wax pattern 11 and the second wax pattern 12 can be selected from a group consisting of a club head body, a hosel, a striking plate, a rear-assembling member or plate, a crown plate, a sidewall plate and a sole plate.
- one of the first cutout portion 112 and the second cutout portion 122 preferably has a depth, identified as “a”, ranging between 15% and 75% of a width, identified as “b”, of one of the first wax pattern 11 and the second wax pattern 12 .
- the first cutout portion 112 and the second cutout portion 122 can still constitute the injection notch 13 even if the first connection surface 111 and the second connection surface 121 are not in perfect alignment with each other.
- the injection notch 13 continuously extends along the entire boundary line of the combined wax pattern 1 .
- the injection notch 13 is constructed from a space formed between the first cutout portion 112 of the first wax pattern 11 and the second connection surface 121 of the second wax pattern 12 ; or formed between the first connection surface 111 of the first wax pattern 11 and the second cutout portion 122 of the second wax pattern 12 .
- the first wax pattern 11 and the second wax pattern 12 are inserted into inner cavities of the mold assembly 2 in place.
- the first wax pattern 11 and the second wax pattern 12 can be assembled to constitute the combined wax pattern 1 if liquid wax is completely injected into the injection notch 13 .
- the inner cavities of the mold assembly 2 have the same configurations with those of the first wax pattern 11 and the second wax pattern 12 .
- the outer surfaces of the first wax pattern 11 and the second wax pattern 12 confront with the inner surfaces of the inner cavities of the mold assembly 2 , but the injection notch 13 of the combined wax pattern 1 remains on the inner surfaces of the inner cavities of the mold assembly 2 .
- the combined wax pattern 1 providing with a configuration of an iron-type club head is exemplified. It will be understood that the configuration of the combined wax pattern 1 can be selected from a wood-type club head, a utility-type club head or a putter-type club head.
- the combined wax pattern 1 includes the first wax pattern 11 , the second wax pattern 12 , an injection notch 13 and the wax-connection portion 131 connected between the first connection surface 111 and the second connection surface 121 .
- the first cutout portion 112 of the first wax pattern 11 and the second cutout portion 122 of the second wax pattern 12 can commonly define the injection notch 13 on a boundary line between the first wax pattern 11 and the second wax pattern 12 when assembled.
- the wax-connection portion 131 is formed in the injection notch 13 to connect between the first wax pattern 11 and the second wax pattern 12 . Consequently, this permits the combined wax pattern 1 to form an undercut portion 10 for the iron-type club head.
- the first wax pattern 11 and the second wax pattern 12 are prefabricated.
- the first connection surface 111 of the first wax pattern 11 of the second embodiment has a plurality of first cutout portions 112 ′ arranged along its outer circumference.
- the second connection surface 121 of the second wax pattern 12 has a plurality of second cutout portion 122 ′ arranged along its outer circumference.
- first connection surface 111 of the first wax pattern 11 is connected with the second connection surface 121 of the second wax pattern 12 , the first cutout portions 112 ′ and the second cutout portions 122 ′ are alternatively staggered to form a series of injection notches 13 ′ for injecting operation.
- the first wax pattern 11 and the second wax pattern 12 are inserted into inner cavities of the mold assembly 2 in place, by referring back to FIG. 5 .
- the first wax pattern 11 and the second wax pattern 12 can be assembled to constitute the combined wax pattern 1 if liquid wax is completely injected into the injection notches 13 ′, as best shown in FIG. 8 .
- an adequate amount of liquid wax is injected into the injection notches 13 ′ of the combined wax pattern 1 , and heat dissipated from the liquid wax can melt the wax portions of the first cutout portion 112 ′ of the first wax pattern 11 and the second cutout portion 122 ′ of the second wax pattern 12 , as best shown in FIG. 5 .
- the hardened liquid wax becomes a wax-connection portion 131 ′ of the combined wax pattern 1 in each of the injection notches 13 ′, and integrally connects between the first cutout portion 112 ′ of the first wax pattern 11 and the second cutout portion 122 ′ of the second wax pattern 12 .
- the combined wax pattern 1 includes the first wax pattern 11 , the second wax pattern 12 , a series of the injection notches 13 ′ and the wax-connection portions 131 ′ formed therein. Preferably, there may be as many notches 13 ′ as desired.
- the first cutout portion 112 ′ of the first wax pattern 11 and the second connection surface 121 of the second wax pattern 12 can commonly define the injection notches 13 ′ disposed along the boundary line between the first wax pattern 11 and the second wax pattern 12 .
- the injection notches 13 ′ located on a side of the first wax pattern 11 are formed.
- the first connection surface 121 of the first wax pattern 11 and the second cutout portion 122 ′ of the second wax pattern 12 can commonly define the other injection notches 13 ′ disposed along the boundary line between the first wax pattern 11 and the second wax pattern 12 .
- the injection notches 13 ′ located on a side of the second wax pattern 12 are formed.
- the wax-connection portions 131 ′ are formed in the injection notches 13 ′ to connect between the first wax pattern 11 and the second wax pattern 12 .
- the injection notch 13 ′ formed by the first cutout portion 112 ′ of the first connection surface 111 communicates with the adjacent injection notch 13 ′ formed by the second cutout portion 122 ′ of the second connection surface 121 when the first wax pattern 11 and the second wax pattern 12 are assembled. Consequently, this permits a flow of liquid wax to successively flow among the injection notches 13 ′.
- the first wax pattern 11 and the second wax pattern 120 are prefabricated.
- the second wax pattern 120 of the third embodiment has an ordinary configuration of a rear-wall member adapted to connect to the club head body member of the first wax pattern 11 .
- the first wax pattern 11 provides the first connection surface 111 at an inner rear surface of its sole portion while the second wax pattern 120 provides the second connection surface 121 at an outer surface of its bottom portion.
- the first connection surface 111 of the first wax pattern 11 has the first cutout portion 112 extending from its heel end to its toe end.
- the second connection surface 121 of the second wax pattern 120 has the second cutout portion 122 extending from its heel end to its toe end of the rear wall 123 .
- the first connection surface 111 of the first wax pattern 11 abuts against the second connection surface 121 of the second wax pattern 12 such that the first cutout portion 112 and the second cutout portion 122 commonly constitute the rear-facing injection notch 13 ′′ on the boundary line of the combined wax pattern 1 .
- the first wax pattern 11 and the second wax pattern 120 are inserted into inner cavities of the mold assembly (not shown).
- the first wax pattern 11 and the second wax pattern 120 can be assembled to constitute the combined wax pattern 1 if liquid wax is completely injected into the injection notch 13 ′′.
- injecting operation an adequate amount of liquid wax is injected into the injection notch 13 ′′ of the combined wax pattern 1 .
- the hardened liquid wax becomes a wax-connection portion 131 ′′ of the combined wax pattern 1 , and integrally connects between the first cutout portion 112 of the first wax pattern 11 and the second cutout portion 122 of the second wax pattern 120 .
- the conventional method for combing the wax patterns causes occurring unwanted partition lines or cracks on an outer surface of the combined wax pattern due to a boundary line existing between the two wax patterns.
- the method for combining the wax patterns in accordance with the present invention prefabricates the first wax pattern 10 and the second wax pattern 20 to provide the injection notch 13 of the combined wax pattern 1 .
- liquid wax is injected into the injection notch 13 of the combined wax pattern 1 to form the wax-connection portion 131 which integrally connects between the first wax pattern 10 and the second wax pattern 20 . Consequently, no clearance or crack will exist on the boundary line of the combined wax pattern 1
Abstract
A method for combining wax patterns for making a golf club head includes the steps of: prefabricating a first wax pattern and a second wax pattern to constitute a combined wax pattern, and at least one of connection surfaces of the first and second wax patterns providing a cutout portion to form an injection notch on a boundary line of the combined wax pattern; and inserting the first wax pattern and the second wax pattern into a mold assembly, and injecting liquid wax into the injection notch to form a wax-connection portion between the first wax pattern and the second wax pattern. Accordingly, the wax-connection portion is integrally connected between the first wax pattern and the second wax pattern to constitute the combined wax pattern.
Description
- 1. Field of the Invention
- The present invention relates to a method for combining wax patterns for making a golf club head, and a combined wax pattern thereof having a wax-connection portion. Particularly, the present invention relates to the method for combining two pieces of the wax patterns to form a “hybrid” one-piece wax pattern for making the golf club head. More particularly, the present invention relates to the manufacturing method for injecting liquid wax into an injection notch formed between the wax patterns for making the golf club head.
- 2. Description of the Related Art
- Taiwanese Patent Publication No. 514,574 discloses a conventional manufacturing method for making a golf club head. Typically, the manufacturing method includes the following steps:
-
- 1. In two-piece wax-pattern forming operation, separately prefabricating two pieces of first and second wax patterns in a first mold assembly and a second mold assembly, and opening the first and second mold assemblies for drawing out the first and second wax patterns;
- 2. In wax-pattern adhering operation, adhering the first and second wax patterns by means of adhesive to form a “hybrid” one-piece design of a combined wax pattern;
- 3. In ceramic-shell forming operation, dipping the combined wax pattern in slurry to produce a ceramic shell, and melting the wax in the ceramic shell by heating and pouring out the melting wax from the ceramic shell such that a mold cavity having a pouring gate for making the golf club head is correspondingly formed in the ceramic shell; and
- 4. In club-head forming operation, filling a melting metal into the ceramic shell, and cooling and breaking the ceramic shell for drawing out a one-piece design of a casting of the golf club head when hardened.
- The above-mentioned manufacturing method for the golf club head requires adhering connection surfaces of the first and second wax patterns in the wax-pattern adhering operation. Such practice can, however, cause occurring an unwanted partition line on an outer surface of the combined wax pattern due to a boundary line existing between the first and second wax patterns. Disadvantageously, controlling the wax-pattern adhering operation cannot completely alleviate occurring such an unwanted partition line of the combined wax pattern. Accordingly, the partition line of the combined wax pattern needs mending by a manual process of deburring or filling liquid wax into cracks after the wax-pattern adhering operation. This additional manual process may sophisticate the manufacturing steps and reduce the manufacturing efficiency of the golf club head.
- Several deficiencies will exist on products of the golf club head if the partition line of the combined wax pattern is not completely mended. In the casting operation, there is a good possibility of occurring cracks on an outer surface of the casting of the golf club head along the partition line of the combined wax pattern even though it is perfectly eliminated in the manual process. However, this results in deterioration of the quality of the products. Hence, there is a need for improving the boundary line of the combined wax pattern.
- The present invention intends to provide a method for combining two pieces of wax patterns to form a combined wax pattern, wherein at least one of connection surfaces of the wax patterns provides a cutout portion to form an injection notch on a boundary line of the combined wax pattern. In molding, the combined wax pattern is received a mold assembly and liquid wax is injected into the injection notch of the combined wax pattern to integrally form a wax-connection portion of the combined wax pattern. Accordingly, an unwanted partition line of the combined wax pattern generated in the conventional method is perfectly eliminated in such a way as to mitigate and overcome the above problem.
- The primary objective of this invention is to provide a method for combining wax patterns to form a hybrid one-piece design of a combined wax pattern for making a golf club head. At least one of connection surfaces of the wax patterns provides a cutout portion to form an injection notch on a boundary line of the combined wax pattern. Accordingly, an unwanted partition line of the combined wax pattern can be eliminated in a molding process.
- The secondary objective of this invention is to provide the combined wax pattern of the golf club head having a wax-connection portion. The wax-connection portion is formed on the boundary line between the wax patterns in the molding process. Accordingly, an outer surface located on the boundary line of the combined wax pattern is improved.
- The method for combing the wax patterns for making the golf club head in accordance with the present invention includes the steps of:
- prefabricating a first wax pattern and a second wax pattern capable of constituting a combined wax pattern, and at least one of connection surfaces of the first and second wax patterns providing a cutout portion to form an injection notch on a boundary line of the combined wax pattern; and
- inserting the first wax pattern and the second wax pattern into a mold assembly, and injecting liquid wax into the injection notch provided on the boundary line of the combined wax pattern to form a wax-connection portion between the first wax pattern and the second wax pattern.
- The combined wax pattern for making the golf club head in accordance with the present invention includes a first wax pattern, a second wax pattern and a wax-connection portion. The first wax pattern has a first connection surface while the second wax pattern has a second connection surface. The first connection surface of the first wax pattern has a cutout portion to form an injection notch on a boundary line between the first wax pattern and the second wax pattern when assembled. In molding, the wax-connection portion is formed on the boundary line between the first wax pattern and the second wax pattern to form the combined wax pattern.
- In a separate aspect of the present invention is that the cutout portion of the first wax pattern has an inclined surface to form the injection notch.
- In a further separate aspect of the present invention is that the cutout portion of the first wax pattern has a curved surface to form the injection notch.
- In a yet further separate aspect of the present invention is that the second connection surface of the second wax pattern has a cutout portion aligned with that of the first connection surface of the first wax pattern to form the injection notch.
- In a yet further separate aspect of the present invention is that the first connection surface of the first wax pattern has a plurality of first cutout portions while the second connection surface of the second wax pattern has a plurality of second cutout portions. When the first connection surface of the first wax pattern is connected with the second connection surface of the second wax pattern, the first cutout portions and the second cutout portions are alternatively staggered to form a series of injection notches.
- In a yet further separate aspect of the present invention is that the injection notch formed by the first cutout portion of the first connection surface communicates with the adjacent injection notch formed by the second cutout portion of the second connection surface when the first wax pattern and the second wax pattern are assembled.
- Further scope of the applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various will become apparent to those skilled in the art from this detailed description.
- The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
-
FIG. 1 is a flow chart of a method for combining wax patterns for making a golf club head in accordance with a preferred embodiment of the present invention; -
FIG. 2 is an exploded perspective view in a first step of the method for combing the wax patterns in accordance with a first embodiment of the present invention; -
FIG. 3 is an enlarged, exploded cross-sectional view of the wax patterns in accordance with the first embodiment of the present invention; -
FIG. 4 is an enlarged, exploded cross-sectional view of the wax patterns in accordance with an alternative embodiment of the present invention depicted inFIG. 3 ; -
FIG. 5 is a cross-sectional view in a second step of the method for combining the wax patterns being received in a mold assembly for making the golf club head in accordance with the first embodiment of the present invention; -
FIG. 6 is a cross-sectional view of a combined wax pattern for making the golf club head in accordance with the first embodiment of the present invention; -
FIG. 7 is an exploded perspective view, similar toFIG. 2 , in a first step of the method for combing the wax patterns in accordance with a second embodiment of the present invention; -
FIG. 8 is a top plan view of a combined wax pattern for making the golf club head in accordance with the second embodiment of the present invention; -
FIG. 9 is a partially enlarged top view, inFIG. 8 , of the combined wax pattern for making the golf club head in accordance with an alternative embodiment of the present invention; -
FIG. 10 is an exploded perspective view in a first step of the method for combing the wax patterns in accordance with a third embodiment of the present invention; and -
FIG. 11 is a cross-sectional view of a combined wax pattern for making the golf club head in accordance with the third embodiment of the present invention. - Referring now to
FIGS. 1, 2 , 5 and 6, a method for combining two wax patterns for making a golf club head in accordance with a first embodiment of the present invention includes the steps of: -
- 1. Prefabricating a
first wax pattern 11 in a first mold (not shown) and asecond wax pattern 12 in a second mold (not shown), thefirst wax pattern 11 and thesecond wax pattern 12 capable of constituting a combinedwax pattern 1, and afirst connection surface 111 of thefirst wax pattern 11 providing afirst cutout portion 112 while asecond connection surface 121 of thesecond wax pattern 12 providing asecond cutout portion 122 to form aninjection notch 13 on a boundary line of the combinedwax pattern 1; and - 2. Inserting the combined
wax pattern 1 of thefirst wax pattern 11 and thesecond wax pattern 12 into amold assembly 2, and injecting liquid wax into theinjection notch 13 on the boundary line of the combinedwax pattern 1 to form a wax-connection portion 131 between thefirst cutout portion 112 of thefirst wax pattern 11 and thesecond cutout portion 122 of thesecond wax pattern 12.
- 1. Prefabricating a
- Referring now to
FIGS. 1 through 4 , in the first step of the method for combining the wax patterns in accordance with the first embodiment of the present invention thefirst wax pattern 11 and thesecond wax pattern 12 are prefabricated. The constructions of thefirst wax pattern 11 and thesecond wax pattern 12 shall be described in detail with reference toFIGS. 2 through 4 . In the first embodiment, thefirst wax pattern 11 has an ordinary configuration of a club head body member. Correspondingly, thesecond wax pattern 12 has an ordinary configuration of a rear-assembling member adapted to connect to the club head body member in the intended manner. Thefirst wax pattern 11 provides thefirst connection surface 111 at its rear side while thesecond wax pattern 12 provides thesecond connection surface 121 at its front side. Thefirst connection surface 111 of thefirst wax pattern 11 has thefirst cutout portion 112 continuously formed along its outer circumference. Similarly, thesecond connection surface 121 of thesecond wax pattern 12 has thesecond cutout portion 122 continuously formed along its outer circumference. When assembled, thefirst connection surface 111 of thefirst wax pattern 11 abuts against thesecond connection surface 121 of thesecond wax pattern 12 such that thefirst cutout portion 112 and thesecond cutout portion 122 commonly constitute theinjection notch 13 on the boundary line of the combinedwax pattern 1. In an alternative embodiment, one of thefirst cutout portion 112 and thesecond cutout portion 122, or both are discontinuously extended along its outer circumference. - Referring again to
FIGS. 3 and 4 , thefirst cutout portion 112 of thefirst wax pattern 11 has an inclined surface inclining a predetermined angle to thefirst connection surface 111 so as to aid a flow of liquid wax to pass through theinjection notch 13. Similarly, thesecond cutout portion 122 of thesecond wax pattern 12 has an inclined surface inclining a predetermined angle to thesecond connection surface 121. In an alternative embodiment, thefirst cutout portion 112 of thefirst wax pattern 11 has a curved surface while thesecond cutout portion 122 of thesecond wax pattern 12 has a curved surface, as shown inFIG. 4 . The curved surfaces of thefirst wax pattern 11 and thesecond wax pattern 12 may enhance a flow of liquid wax to pass through theinjection notch 13 in injecting operation. - In another embodiment, the configurations of the
first wax pattern 11 and thesecond wax pattern 12 can be selected from a group consisting of a club head body, a hosel, a striking plate, a rear-assembling member or plate, a crown plate, a sidewall plate and a sole plate. - Referring again to
FIGS. 3 and 4 , one of thefirst cutout portion 112 and thesecond cutout portion 122 preferably has a depth, identified as “a”, ranging between 15% and 75% of a width, identified as “b”, of one of thefirst wax pattern 11 and thesecond wax pattern 12. Once initially assembled, thefirst cutout portion 112 and thesecond cutout portion 122 can still constitute theinjection notch 13 even if thefirst connection surface 111 and thesecond connection surface 121 are not in perfect alignment with each other. Preferably, theinjection notch 13 continuously extends along the entire boundary line of the combinedwax pattern 1. - In an alternative embodiment, only one of the
first connection surface 111 of thefirst wax pattern 11 and thesecond connection surface 121 of thesecond wax pattern 12 provides the cutout portion to form theinjection notch 13. In this alternative embodiment, theinjection notch 13 is constructed from a space formed between thefirst cutout portion 112 of thefirst wax pattern 11 and thesecond connection surface 121 of thesecond wax pattern 12; or formed between thefirst connection surface 111 of thefirst wax pattern 11 and thesecond cutout portion 122 of thesecond wax pattern 12. - Referring again to
FIGS. 1 and 6 , in the second step of the method for combining the wax patterns in accordance with the first embodiment of the present invention thefirst wax pattern 11 and thesecond wax pattern 12 are inserted into inner cavities of themold assembly 2 in place. Thefirst wax pattern 11 and thesecond wax pattern 12 can be assembled to constitute the combinedwax pattern 1 if liquid wax is completely injected into theinjection notch 13. The inner cavities of themold assembly 2 have the same configurations with those of thefirst wax pattern 11 and thesecond wax pattern 12. In the first embodiment, the outer surfaces of thefirst wax pattern 11 and thesecond wax pattern 12 confront with the inner surfaces of the inner cavities of themold assembly 2, but theinjection notch 13 of the combinedwax pattern 1 remains on the inner surfaces of the inner cavities of themold assembly 2. In injecting operation, an adequate amount of liquid wax is injected into theinjection notch 13 of the combinedwax pattern 1 until filling it up. In this manner, heat dissipated from the liquid wax “c” can melt the wax portions of thefirst cutout portion 112 of thefirst wax pattern 11 and thesecond cutout portion 122 of thesecond wax pattern 12. Once cooled and hardened, the hardened liquid wax becomes a wax-connection portion 131 of the combinedwax pattern 1, and integrally connects between thefirst cutout portion 112 of thefirst wax pattern 11 and thesecond cutout portion 122 of thesecond wax pattern 12. Consequently, thefirst connection surface 111 of thefirst wax pattern 11 and thesecond connection surface 121 of thesecond wax pattern 12 are in perfect connection with each other. Accordingly, no clearance or crack will exist on the boundary line of the combinedwax pattern 1. - Construction of the combined
wax pattern 1 in accordance with the present invention shall be described in detail with reference toFIG. 6 . In the first embodiment, the combinedwax pattern 1 providing with a configuration of an iron-type club head is exemplified. It will be understood that the configuration of the combinedwax pattern 1 can be selected from a wood-type club head, a utility-type club head or a putter-type club head. The combinedwax pattern 1 includes thefirst wax pattern 11, thesecond wax pattern 12, aninjection notch 13 and the wax-connection portion 131 connected between thefirst connection surface 111 and thesecond connection surface 121. Thefirst cutout portion 112 of thefirst wax pattern 11 and thesecond cutout portion 122 of thesecond wax pattern 12 can commonly define theinjection notch 13 on a boundary line between thefirst wax pattern 11 and thesecond wax pattern 12 when assembled. In addition, the wax-connection portion 131 is formed in theinjection notch 13 to connect between thefirst wax pattern 11 and thesecond wax pattern 12. Consequently, this permits the combinedwax pattern 1 to form an undercutportion 10 for the iron-type club head. - Turning now to
FIGS. 7 and 8 , in the first step of the method for combining the wax patterns in accordance with the second embodiment of the present invention thefirst wax pattern 11 and thesecond wax pattern 12 are prefabricated. In comparison with the first embodiment, thefirst connection surface 111 of thefirst wax pattern 11 of the second embodiment has a plurality offirst cutout portions 112′ arranged along its outer circumference. Similarly, thesecond connection surface 121 of thesecond wax pattern 12 has a plurality ofsecond cutout portion 122′ arranged along its outer circumference. When thefirst connection surface 111 of thefirst wax pattern 11 is connected with thesecond connection surface 121 of thesecond wax pattern 12, thefirst cutout portions 112′ and thesecond cutout portions 122′ are alternatively staggered to form a series ofinjection notches 13′ for injecting operation. - In the second step of the method for combining the wax patterns in accordance with the second embodiment of the present invention the
first wax pattern 11 and thesecond wax pattern 12 are inserted into inner cavities of themold assembly 2 in place, by referring back toFIG. 5 . In the second embodiment, thefirst wax pattern 11 and thesecond wax pattern 12 can be assembled to constitute the combinedwax pattern 1 if liquid wax is completely injected into theinjection notches 13′, as best shown inFIG. 8 . In injecting operation, an adequate amount of liquid wax is injected into theinjection notches 13′ of the combinedwax pattern 1, and heat dissipated from the liquid wax can melt the wax portions of thefirst cutout portion 112′ of thefirst wax pattern 11 and thesecond cutout portion 122′ of thesecond wax pattern 12, as best shown inFIG. 5 . Once cooled and hardened, the hardened liquid wax becomes a wax-connection portion 131′ of the combinedwax pattern 1 in each of theinjection notches 13′, and integrally connects between thefirst cutout portion 112′ of thefirst wax pattern 11 and thesecond cutout portion 122′ of thesecond wax pattern 12. - Still referring to
FIGS. 7 and 8 , construction of the combinedwax pattern 1 in accordance with the present invention shall be described in detail. In the second embodiment, the combinedwax pattern 1 includes thefirst wax pattern 11, thesecond wax pattern 12, a series of theinjection notches 13′ and the wax-connection portions 131′ formed therein. Preferably, there may be asmany notches 13′ as desired. When thefirst wax pattern 11 and thesecond wax pattern 12 are assembled, thefirst cutout portion 112′ of thefirst wax pattern 11 and thesecond connection surface 121 of thesecond wax pattern 12 can commonly define theinjection notches 13′ disposed along the boundary line between thefirst wax pattern 11 and thesecond wax pattern 12. Accordingly, theinjection notches 13′ located on a side of thefirst wax pattern 11 are formed. Conversely, thefirst connection surface 121 of thefirst wax pattern 11 and thesecond cutout portion 122′ of thesecond wax pattern 12 can commonly define theother injection notches 13′ disposed along the boundary line between thefirst wax pattern 11 and thesecond wax pattern 12. Accordingly, theinjection notches 13′ located on a side of thesecond wax pattern 12 are formed. In addition, the wax-connection portions 131′ are formed in theinjection notches 13′ to connect between thefirst wax pattern 11 and thesecond wax pattern 12. - Turning now to
FIG. 9 , in an alternative embodiment, theinjection notch 13′ formed by thefirst cutout portion 112′ of thefirst connection surface 111 communicates with theadjacent injection notch 13′ formed by thesecond cutout portion 122′ of thesecond connection surface 121 when thefirst wax pattern 11 and thesecond wax pattern 12 are assembled. Consequently, this permits a flow of liquid wax to successively flow among theinjection notches 13′. - Turning now to
FIGS. 10 and 11 , in the first step of the method for combining the wax patterns in accordance with the third embodiment of the present invention thefirst wax pattern 11 and thesecond wax pattern 120 are prefabricated. In comparison with the first and second embodiments, thesecond wax pattern 120 of the third embodiment has an ordinary configuration of a rear-wall member adapted to connect to the club head body member of thefirst wax pattern 11. Thefirst wax pattern 11 provides thefirst connection surface 111 at an inner rear surface of its sole portion while thesecond wax pattern 120 provides thesecond connection surface 121 at an outer surface of its bottom portion. In the third embodiment, thefirst connection surface 111 of thefirst wax pattern 11 has thefirst cutout portion 112 extending from its heel end to its toe end. Similarly, thesecond connection surface 121 of thesecond wax pattern 120 has thesecond cutout portion 122 extending from its heel end to its toe end of therear wall 123. When assembled, thefirst connection surface 111 of thefirst wax pattern 11 abuts against thesecond connection surface 121 of thesecond wax pattern 12 such that thefirst cutout portion 112 and thesecond cutout portion 122 commonly constitute the rear-facinginjection notch 13″ on the boundary line of the combinedwax pattern 1. - In the second step of the method for combining the wax patterns in accordance with the third embodiment of the present invention the
first wax pattern 11 and thesecond wax pattern 120 are inserted into inner cavities of the mold assembly (not shown). Thefirst wax pattern 11 and thesecond wax pattern 120 can be assembled to constitute the combinedwax pattern 1 if liquid wax is completely injected into theinjection notch 13″. In injecting operation, an adequate amount of liquid wax is injected into theinjection notch 13″ of the combinedwax pattern 1. Once cooled and hardened, the hardened liquid wax becomes a wax-connection portion 131″ of the combinedwax pattern 1, and integrally connects between thefirst cutout portion 112 of thefirst wax pattern 11 and thesecond cutout portion 122 of thesecond wax pattern 120. - As has been discussed above, the conventional method for combing the wax patterns causes occurring unwanted partition lines or cracks on an outer surface of the combined wax pattern due to a boundary line existing between the two wax patterns. Conversely, the method for combining the wax patterns in accordance with the present invention, as best shown in
FIGS. 2 and 5 , prefabricates thefirst wax pattern 10 and the second wax pattern 20 to provide theinjection notch 13 of the combinedwax pattern 1. Subsequently, liquid wax is injected into theinjection notch 13 of the combinedwax pattern 1 to form the wax-connection portion 131 which integrally connects between thefirst wax pattern 10 and the second wax pattern 20. Consequently, no clearance or crack will exist on the boundary line of the combinedwax pattern 1 - 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 (20)
1. A manufacturing method for combining wax patterns for making a golf club head, comprising the steps of:
prefabricating a first wax pattern and a second wax pattern to constitute a combined wax pattern, and at least one of connection surfaces of the first and second wax patterns providing at least one cutout portion to form at least one injection notch on a boundary line of the combined wax pattern; and
inserting the first wax pattern and the second wax pattern into a mold assembly, and injecting liquid wax into the injection notch to form a wax-connection portion between the first wax pattern and the second wax pattern.
2. The method for combining the wax patterns for making the golf club head. as defined in claim 1 , wherein the cutout portion continuously or discontinuously extends along an outer circumference of the connection surface of the first wax pattern or the second wax pattern.
3. The method for combining the wax patterns for making the golf club head as defined in claim 1 , wherein the connection surface of the first wax pattern has a plurality of first cutout portions arranged along its outer circumference while the connection surface of the second wax pattern has a plurality of second cutout portions arranged along its outer circumference.
4. The method for combining the wax patterns for making the golf club head as defined in claim 3 , wherein the first cutout portions of the first wax pattern and the second cutout portions of the second wax pattern are alternatively staggered to form a series of the injection notches.
5. The method for combining the wax patterns for making the golf club head as defined in claim 4 , wherein the injection notch formed by the first cutout portion communicates with the adjacent injection notch formed by the second cutout portion.
6. The method for combining the wax patterns for making the golf club head as defined in claim 1 , wherein the connection surface of the first wax pattern has a first cutout portion arranged along its outer circumference while the connection surface of the second wax pattern has a second cutout portion arranged along its outer circumference; the first cutout portion and the second cutout portion commonly define the injection notch.
7. The method for the combining the wax patterns for making the golf club head as defined in claim 1 , wherein the cutout portion of the wax pattern has an inclined surface or a curved surface.
8. The method for combining the wax patterns for making the golf club head as defined in claim 1 , wherein configurations of the first wax pattern and the second wax pattern are selected from a group consisting of a club head body, a hosel, a striking plate, a rear-assembling member or plate, a crown plate, a sidewall plate, a sole plate and a rear-wall member.
9. The method for combining the wax patterns for making the golf club head as defined in claim 1 , wherein the cutout portion has a depth ranging between 15% and 75% of a width of one of the first wax pattern and the second wax pattern.
10. The method for the combining the wax patterns for making the golf club head as defined in claim 1 , wherein the combined wax pattern forms an undercut portion for the golf club head.
11. A combined wax pattern for making a golf club head, comprising:
a first wax pattern having a first connection surface, the first connection surface providing at least one cutout portion;
a second wax pattern having a second connection surface corresponding to the first connection surface;
an injection notch formed between the cutout portion of the first connection surface of the first wax pattern and the second connection surface of the second wax pattern when assembled; and
a wax-connection portion formed in the injection notch, the wax-connection portion integrally connecting between the cutout portion of the first wax pattern and the second connection surface of the second wax pattern.
12. The combined wax pattern for making the golf club head as defined in claim 11 , wherein the cutout portion continuously or discontinuously extends along an outer circumference of the connection surface of the first wax pattern.
13. The combined wax pattern for making the golf club head as defined in claim 11 , wherein the first connection surface of the first wax pattern has a plurality of first cutout portions arranged along its outer circumference while the second connection surface of the second wax pattern has a plurality of second cutout portions arranged along its outer circumference.
14. The combined wax pattern for making the golf club head as defined in claim 13 , wherein the first cutout portions of the first wax pattern and the second cutout portions of the second wax pattern are alternatively staggered to form a series of the injection notches.
15. The combined wax pattern for making the golf club head as defined in claim 14 , wherein the injection notch formed by the first cutout portion communicates with the adjacent injection notch formed by the second cutout portion.
16. The combined wax pattern for making the golf club head as defined in claim 11 , wherein the second connection surface of the second wax pattern has further a cutout portion arranged along its outer circumference; the cutout portions of the first wax pattern and the second wax pattern commonly define the injection notch.
17. The combined wax pattern for making the golf club head as defined in claim 11 , wherein the cutout portion of the first wax pattern has an inclined surface or a curved surface.
18. The combined wax pattern for making the golf club head as defined in claim 11 , wherein configurations of the first wax pattern and the second wax pattern are selected from a group consisting of a club head body, a hosel, a striking plate, a rear-assembling member or plate, a crown plate, a sidewall plate, a sole plate and a rear-wall member.
19. The combined wax pattern for making the golf club head as defined in claim 11 , wherein the cutout portion has a depth ranging between 15% and 75% of a width of one of the first wax pattern and the second wax pattern.
20. The combined wax pattern for making the golf club head as defined in claim 11 , wherein the combined wax pattern forms an undercut portion for the golf club head.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/247,198 US20070079946A1 (en) | 2005-10-12 | 2005-10-12 | Method for combining wax patterns for making a golf club head and combined wax pattern thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/247,198 US20070079946A1 (en) | 2005-10-12 | 2005-10-12 | Method for combining wax patterns for making a golf club head and combined wax pattern thereof |
Publications (1)
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US20070079946A1 true US20070079946A1 (en) | 2007-04-12 |
Family
ID=37910158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/247,198 Abandoned US20070079946A1 (en) | 2005-10-12 | 2005-10-12 | Method for combining wax patterns for making a golf club head and combined wax pattern thereof |
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US (1) | US20070079946A1 (en) |
Cited By (5)
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CN102139346A (en) * | 2011-03-15 | 2011-08-03 | 中核苏阀横店机械有限公司 | Anti-reverse square loose piece |
CN109701235A (en) * | 2019-02-25 | 2019-05-03 | 四川宇钛体育用品有限公司 | A kind of manufacturing method of golf iron pusher head |
US10780327B2 (en) | 2017-08-10 | 2020-09-22 | Taylor Made Golf Company, Inc. | Golf club heads with titanium alloy face |
US10874915B2 (en) | 2017-08-10 | 2020-12-29 | Taylor Made Golf Company, Inc. | Golf club heads |
US11701557B2 (en) | 2017-08-10 | 2023-07-18 | Taylor Made Golf Company, Inc. | Golf club heads |
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US5538798A (en) * | 1995-04-12 | 1996-07-23 | Niemin Porter & Co. D/B/A Cast Alloys, Inc. | Investment casting gating for metal wood golf club heads |
US5547630A (en) * | 1991-10-15 | 1996-08-20 | Callaway Golf Company | Wax pattern molding process |
US6739376B1 (en) * | 2002-12-04 | 2004-05-25 | Advanced International Multitech Co., Ltd. | Method for producing a golf club head |
US6749002B2 (en) * | 2002-10-21 | 2004-06-15 | Ford Motor Company | Method of spray joining articles |
US20050034834A1 (en) * | 2003-08-14 | 2005-02-17 | Chun-Yung Huang | Method for manufacturing golf club head |
US20050224207A1 (en) * | 2004-04-08 | 2005-10-13 | Chun-Yung Huang | Manufacturing method for a golf club head |
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US5547630A (en) * | 1991-10-15 | 1996-08-20 | Callaway Golf Company | Wax pattern molding process |
US5538798A (en) * | 1995-04-12 | 1996-07-23 | Niemin Porter & Co. D/B/A Cast Alloys, Inc. | Investment casting gating for metal wood golf club heads |
US6749002B2 (en) * | 2002-10-21 | 2004-06-15 | Ford Motor Company | Method of spray joining articles |
US6739376B1 (en) * | 2002-12-04 | 2004-05-25 | Advanced International Multitech Co., Ltd. | Method for producing a golf club head |
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US20050224207A1 (en) * | 2004-04-08 | 2005-10-13 | Chun-Yung Huang | Manufacturing method for a golf club head |
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CN102139346A (en) * | 2011-03-15 | 2011-08-03 | 中核苏阀横店机械有限公司 | Anti-reverse square loose piece |
US10780327B2 (en) | 2017-08-10 | 2020-09-22 | Taylor Made Golf Company, Inc. | Golf club heads with titanium alloy face |
US10874915B2 (en) | 2017-08-10 | 2020-12-29 | Taylor Made Golf Company, Inc. | Golf club heads |
US10881917B2 (en) | 2017-08-10 | 2021-01-05 | Taylor Made Golf Company, Inc. | Golf club heads |
US11701557B2 (en) | 2017-08-10 | 2023-07-18 | Taylor Made Golf Company, Inc. | Golf club heads |
CN109701235A (en) * | 2019-02-25 | 2019-05-03 | 四川宇钛体育用品有限公司 | A kind of manufacturing method of golf iron pusher head |
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Owner name: NELSON PRECISION CASTING CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, CHI-MING;REEL/FRAME:017080/0561 Effective date: 20051005 |
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