Title:
多層コア成形方法
Document Type and Number:
Japanese Patent JP7386066
Kind Code:
B2
Abstract:
A multilayer core molding method for molding a multilayer core of a golf ball includes an upstream process; and a downstream process, wherein the intermediate molded body includes: an inner core; and an unvulcanized or semi-vulcanized first outer core material, and the downstream process molding apparatus includes: a first downstream process mold including a substantially hemispherical first downstream process mold cavity surface; a second downstream process mold including a substantially hemispherical second downstream process mold cavity surface; and an intermediate plate including a substantially hemispherical intermediate plate cavity surface, and a substantially hemispherical intermediate plate projecting surface, and wherein the downstream process includes: a second outer core arrangement step; an intermediate molded body arrangement; and a preparatory molding step.
Inventors:
Kazunori Nakajima
Satoru Judai
Satoru Judai
Application Number:
JP2019220554A
Publication Date:
November 24, 2023
Filing Date:
December 05, 2019
Export Citation:
Assignee:
Bridgestone Sports Co., Ltd.
International Classes:
A63B45/00; B29C43/18; B29C43/20; B29C43/52
Domestic Patent References:
| JP2015515316A | ||||
| JP200324474A | ||||
| JP2015500079A | ||||
| JP2008302217A |
Foreign References:
| US20020066976 |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Yasuyuki Komatsu
Rei Ito
Mitsutsugu Sugimura
Yasuyuki Komatsu
Rei Ito