Title:
樹脂製ボトル
Document Type and Number:
Japanese Patent JP7443743
Kind Code:
B2
Abstract:
To provide a resin bottle which suppresses rupture caused by reversion of a bottle bottom part, with a simple structure.SOLUTION: A resin bottle is formed by performing biaxially stretching blow molding at a preform having a gate mark 52b at a bottom part at the injection molding time. A bottle bottom part 50 includes: a grounding part 51 for coming into contact with a placement surface; and a non-contact recessed part region 52 recessed facing upward further on an inner peripheral side than the grounding part 51. At the non-contact recessed part region 52, a bottom part central part 52a in which a gate mark 52b is formed, and a mountain-shaped part 52c which is arranged so as to surround the periphery of the bottom part central part 52a and is formed in a mountain shape so that its apex is positioned further on an upper side than an outer peripheral side and the inner peripheral side are formed.SELECTED DRAWING: Figure 3
Inventors:
Souya Yoshida
Reita Ishii
Yoichi Tadokoro
Atsushi Komiya
Takanori Okabe
Reita Ishii
Yoichi Tadokoro
Atsushi Komiya
Takanori Okabe
Application Number:
JP2019226269A
Publication Date:
March 06, 2024
Filing Date:
December 16, 2019
Export Citation:
Assignee:
Toyo Seikan Co., Ltd.
International Classes:
B65D1/02
Domestic Patent References:
| JP64005815A | ||||
| JP54004282U | ||||
| JP2006527692A | ||||
| JP2008178994A |
Foreign References:
| US20180312292 |
Attorney, Agent or Firm:
Nobuo Fujimoto
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