Title:
VENT VALVE
Document Type and Number:
Japanese Patent JP2019082182
Kind Code:
A
Abstract:
To provide a vent valve capable of reducing force in a case where a lid is added to impact, to prevent damage and protect a valve mechanism, thereby maintaining normal opening/closing operation.SOLUTION: A vent valve comprises: a valve mechanism part 10 configured to reduce internal negative pressure with opening/closing of a valve body 16; a plurality of columnar parts 20 provided at an upper part of the valve mechanism part 10, and forming a ventilation passage 21 for the valve mechanism part 10; and a lid member 15 provided above the ventilation passage 21, and covering the valve mechanism part 10, wherein the lid member 15 is arranged detachably and rotatably with respect to the columnar part 20.SELECTED DRAWING: Figure 1
Inventors:
AOKI KAZUHIRO
KOBAYASHI TATSURO
KOBAYASHI TATSURO
Application Number:
JP2017208302A
Publication Date:
May 30, 2019
Filing Date:
October 27, 2017
Export Citation:
Assignee:
KITZ CORP
International Classes:
F16K24/06; E03C1/122
Attorney, Agent or Firm:
Tetsuo Kobayashi