| 摘要 |
<p>A steam iron having a pump mechanism (14) comprising a piston (15), a piston chamber (16) in which the piston is capable of moving, inlet and outlet ports (17,19) for the piston chamber, a return spring (31) and a control member for moving the piston in the opposite direction so as to pump water. To obtain a simple pump mechanism in the piston chamber (16) a cup-shaped valve member (22) of a resilient material includes a delivery valve (24) formed by two flexible wall portions (25, 26) of the valve member, the wall portions separating in the event of overpressure in the piston chamber so as to form a slitted aperture (27), the valve member further having a flexible wall portion (28) which flexibly bears against a wall (29) of the piston chamber and acts as a suction valve. The pump mechanism is preferably located in the steam needle with the object of pumping an extra quantity of water to the steam chamber (steam surge).</p> |
