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Title:
GATE VALVE
Document Type and Number:
Japanese Patent JP2003028314
Kind Code:
A
Abstract:

To simply and inexpensively structure a gate valve, to simplify the operation of the gate valve, and to improve the reliability of the gate valve.

This gate valve 10 comprises a gate portion 18 rocking between a closing position Pa and an opening position P2, a pressing mechanism 30 capable of blocking through holes 14a, 14b of a valve box 16 by expanding/ contracting the gate portion 18, and an operating mechanism 32 rocking the gate portion 18 to a fulcrum under a function of a single cylinder 52 and energizing the pressing mechanism 30 to expand/contract the gate portion 18.


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Inventors:
ISHIGAKI TSUNEO
HOSONO MASAYUKI
MIYAZAKI SHOGO
SOMEYA MITSUHIRO
Application Number:
JP2001214786A
Publication Date:
January 29, 2003
Filing Date:
July 16, 2001
Export Citation:
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Assignee:
SMC CORP
International Classes:
F16K3/10; F16K3/18; F16K31/122; F16K41/10; F16K51/02; (IPC1-7): F16K3/10; F16K3/18; F16K31/122; F16K41/10; F16K51/02
Attorney, Agent or Firm:
Takehiro Chiba



 
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