Title:
STOPPER MECHANISM FOR GATE VALVE HAVING ROTATIONAL SLIDING TYPE GLAND STRUCTURE
Document Type and Number:
Japanese Patent JP3444436
Kind Code:
B2
Abstract:
PURPOSE: To provide a gate valve capable of coming out fine control of a fastening rate, easy to assemble and disassemble, has a valve element protected and improves in airtightness.
CONSTITUTION: A cylinder 12 having a slit 13 is provided on a stopper adjusting fitting 11, and screwed with a stopper feeding screw 19 of driving sleeve 3. A projection 18 is engaged with the slit 13, and a stopper 17 is assembled in the cylinder 12. The stopper 17 is vertically moved by the rotation of the driving sleeve 3. A rate of vertical moving of the stopper 17 is determined by rotating the stopper adjusting fitting 11, and thereby a rotation rate of the driving sleeve 3, that is a fastening rate of a valve body is regulated.
Inventors:
Akio Seta
Tatsuo Katayama
Kentaro Kimoto
Takahide Sugiyama
Atsuya Shinohara
Taizo Hoshino
Tatsuo Katayama
Kentaro Kimoto
Takahide Sugiyama
Atsuya Shinohara
Taizo Hoshino
Application Number:
JP6378694A
Publication Date:
September 08, 2003
Filing Date:
March 31, 1994
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
Hirata Valve Industry Co., Ltd.
Hirata Valve Industry Co., Ltd.
International Classes:
F16K3/00; F16K35/06; (IPC1-7): F16K3/00; F16K35/06
Domestic Patent References:
| JP39186A |
Attorney, Agent or Firm:
Hiroshi Ohashi
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