Title:
METHOD FOR MANUFACTURING MULTILAYER STRUCTURE GOLF BALL
Document Type and Number:
WIPO Patent Application WO/2012/128479
Kind Code:
A2
Abstract:
The present invention relates to a method for manufacturing a golf ball, in particular, to a method for manufacturing a golf ball having a multilayer structure. The method for manufacturing a golf ball having a multilayer structure according to the present invention is a method for manufacturing a golf ball having a multilayer structure using: an upper mold and a lower mold equipped with a plurality of hemispherical cavities; and a molding device which enters/exits between the upper mold and the lower mold, and having a middle mold equipped with a plurality of hemispherical protrusions having smaller diameters than the cavities, on the upper surface and the lower surface so as to correspond to the cavities, and comprises the steps of: (a) placing a monomer for forming an external layer on each of the upper surface protrusions of the middle mold and each of the cavities of the lower mold, in a state where the upper mold and the lower mold are separated at a predetermined distance, and the middle mold is placed therebetween; (b) forming a half-bridging cup-shaped external layer pair inside the space formed between the protrusions and the cavities by placing the upper surface and the lower surface protrusions of the middle mold, inside of each of the corresponding cavities of the upper mold and the lower mold; (c) separating the upper mold and the lower mold while the half-bridging cup-shaped external layer is attached inside the cavities; (d) transferring to outside the middle mold; (e) placing inside the cavities of the lower mold, a previously molded spherical inner layer; and (f) bridging the cup-shaped external layer pair and the spherical inner layer by bringing together the upper mold and the lower mold.
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Inventors:
RYU HIE TACK (KR)
KIM JUNG SOO (KR)
LEE JAE HO (KR)
MOON KYUNG AHN (KR)
KIM JUNG SOO (KR)
LEE JAE HO (KR)
MOON KYUNG AHN (KR)
Application Number:
PCT/KR2012/001310
Publication Date:
September 27, 2012
Filing Date:
February 21, 2012
Export Citation:
Assignee:
VOLVIK INC (KR)
RYU HIE TACK (KR)
KIM JUNG SOO (KR)
LEE JAE HO (KR)
MOON KYUNG AHN (KR)
RYU HIE TACK (KR)
KIM JUNG SOO (KR)
LEE JAE HO (KR)
MOON KYUNG AHN (KR)
International Classes:
A63B45/00; A63B37/00
Foreign References:
| JP2008093879A | 2008-04-24 | |||
| US6290797B1 | 2001-09-18 | |||
| US7407378B2 | 2008-08-05 | |||
| US6645414B2 | 2003-11-11 |
Attorney, Agent or Firm:
LEE, Sook Yeol (KR)
이숙열 (KR)
이숙열 (KR)
Download PDF:
Claims:
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