| 摘要 |
<p>A time-delay valve is provided with: an open/close valve (7) which opens/closes the flow of air between a first port (P) to which compressed air is supplied and a second port (A) which is connected to the exterior of a casing; and a delay mechanism (8) which opens the abovementioned open/close valve (7) after a predetermined period of time. The delay mechanism (8) is equipped with: a metering valve (22) in communication with the first port (P); a piston (36) connected to the abovementioned open/close valve (7); a compression chamber (40) in communication with a pressure-receiving surface (37) of the piston (36); and a communication path (42) communicating between a restriction passage (28) of the abovementioned metering valve (22) and the abovementioned compression chamber (40). When the compressed air supplied to the abovementioned compression chamber (40) from the first port (P) through the restriction passage (28) and the abovementioned communication path (42) reaches a set pressure, the valve-opening force acting on the abovementioned piston (36) overcomes the valve-closing force acting on the abovementioned open/close valve (7), and opens said open/close valve (7). Thus, the compressed air from the first port (P) is supplied to the exterior of the casing through the second port (A).</p> |
