Claims
- 1. A method for making a game racket, the game racket comprising an annular frame, and a network engaged in the annular frame, said method comprising:
- providing an upper mold and a lower mold each having a mold cavity, said mold cavities including a shape corresponding to that of the annular frame of the game racket,
- preparing and engaging an annular rib in said mold cavity of said lower mold,
- engaging the network on said lower mold for engaging the network with said annular rib,
- engaging said upper mold and said lower mold together, and
- injecting a material into said mold cavities for forming the annular frame of the game racket and for forming the annular rib in the annular frame and for allowing the network to be secured to the annular frame without threading operation.
- 2. The method according to claim 1, wherein said annular rib includes at least one hole for engaging with said material and for allowing said annular rib to be solidly secured in said annular frame.
- 3. The method according to claim 1, wherein the network includes a peripheral portion engaged with said annular rib.
- 4. The method according to claim 1 further comprising: providing a tube and engaging a first end of said tube in said mold cavities before injecting said material into said mold cavities for allowing said first end of said tube to be secured to said annular frame.
- 5. The method according to claim 4, wherein the tube includes a first end secured to said annular frame and includes a second end having a hand grip.
- 6. A method for making a game racket, the game racket comprising an annular frame, a tube secured to said annular frame, and a network engaged in the annular frame, said method comprising:
- providing a first lower mold having an annular groove,
- providing an annular rib and engaging a lower portion of said annular rib in said annular groove of said first lower mold,
- providing a first upper mold, said first upper mold including a mold cavity for receiving an upper portion of said annular rib,
- engaging the network on said lower mold for engaging the network with said upper portion of said annular rib,
- engaging said upper mold and said lower mold together,
- injecting a material into said mold cavity of said first upper mold for forming a prototype,
- providing a second lower mold and a second upper mold each having a mold cavity, said mold cavities of said second lower mold and said second upper mold including a shape corresponding to that of the annular frame of the game racket,
- engaging said prototype in said mold cavities of said second lower mold and said second upper mold, and
- injecting a material into said mold cavities of said second lower mold and said second upper mold for forming the annular frame of the game racket and for forming the annular rib in the annular frame and for allowing the network to be secured to the annular frame without threading operation.
- 7. The method according to claim 6, wherein the network includes a peripheral portion engaged with said annular rib.
- 8. The method according to claim 7, wherein said first upper mold includes a projection extended inward of said mold cavity of said first upper mold for pressing said peripheral portion of the network to engage with the annular rib.
- 9. The method according to claim 6, wherein said annular rib includes at least one hole for engaging with said material and for allowing said annular rib to be solidly secured in said annular frame.
Parent Case Info
The present invention is a continuation-in-part of U.S. patent application Ser. No. 08/823,074, filed on Mar. 24, 1997 now U.S. Pat. No. 5,735,759.
US Referenced Citations (10)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
823074 |
Mar 1997 |
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