Title:
逆止弁及びその製造方法、並びに、逆止弁を備える容器
Document Type and Number:
Japanese Patent JP5053463
Kind Code:
B2
Abstract:
In order to provide a check valve capable of sufficiently suppressing the mixing of air into the container even if a certain impact is applied to the container and also capable of stably maintaining good pouring of the content, a check valve 10 of the invention is formed of rubber material and manufactured by integral molding. The check valve 10 has a tubular main body 1 having openings 1 a and 1 b at opposite ends, a lid 3 arranged to close one opening 1a of the main body 1, and a hinge 5 that connects the main body 1 and the lid 3. The lid 3 has a projection 3a on the side surface 3b, the projection 3a coming in contact with a peripheral edge of the opening 1 a of the main body 1.
Inventors:
Denmi Kuwagaki
Michio Sugawa
Hagimoto Jun
Minami Taizo
Takehisa Hashimoto
Michio Sugawa
Hagimoto Jun
Minami Taizo
Takehisa Hashimoto
Application Number:
JP2012041870A
Publication Date:
October 17, 2012
Filing Date:
February 28, 2012
Export Citation:
Assignee:
Kikkoman Corporation
Asahi Kasei Pax Co., Ltd.
Mikasa Sangyo Co., Ltd.
Asahi Kasei Pax Co., Ltd.
Mikasa Sangyo Co., Ltd.
International Classes:
B65D49/02; B65D33/38
Domestic Patent References:
| JP56044679Y1 | ||||
| JP54014292Y1 | ||||
| JP59147050U | ||||
| JP60055377B1 | ||||
| JP8000271Y2 | ||||
| JP8301325A |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito