Title:
ゲートバルブおよびゲートバルブの製造方法
Document Type and Number:
Japanese Patent JP5747849
Kind Code:
B2
Abstract:
A gate valve is cleaned by using a time required for curing a thermosetting resin injected in a mold. A gate valve for the thermosetting resin configured to open and close an injection hole includes a casing, a gate valve pin and a sleeve. The gate valve is configured to have a first fluid flow path. In a state where the gate valve pin is at a first pin position, a front end section on an injection hole side of the gate valve pin closes the injection hole. In a state where the gate valve pin is at a second pin position that is more distant from the injection hole than the first pin position, the front end section opens the injection hole to make communication between the first fluid flow path and the injection hole and thereby form a resin supply line. In a state where the sleeve is at a first sleeve position and the gate valve pin is at the first pin position, a second fluid flow path is formed in the gate valve to connect an injection hole-side end of the first fluid flow path to outside of the gate valve and is made to communicate with the first fluid flow path and thereby form a cleaning line.
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Inventors:
Tamotsu Suzuki
Yoshihiro Kawahara
Yasumiki Noguchi
Yoshihiro Kawahara
Yasumiki Noguchi
Application Number:
JP2012068938A
Publication Date:
July 15, 2015
Filing Date:
March 26, 2012
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
B29C31/04; B29C39/10; B29C39/26; B29C45/20
Domestic Patent References:
| JP2003245949A | ||||
| JP4998461U | ||||
| JP11247756A |
Foreign References:
| GB2401924A | ||||
| US5187001 | ||||
| WO2009099129A1 |
Attorney, Agent or Firm:
Meisei International Patent Office
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