| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily restore the original state of a dustproof cover, and also to drain remaining water left inside. <P>SOLUTION: A water spray nozzle includes: a nozzle body with a nozzle watering port formed therein; a seal member arranged on the front surface of the nozzle body; and energizing means for energizing the seal member toward the nozzle body to close the nozzle watering port by the seal member. When watering is performed, the nozzle watering port is opened with the forward movement of the seal member by watering pressure. When watering is stopped, the nozzle watering port is closed with the backward movement of the seal member by the energization force of the energizing means. Drain grooves for draining the remaining water left inside the nozzle body from the nozzle watering port are formed in the abutment surface between the nozzle body and the seal member. <P>COPYRIGHT: (C)2012,JPO&INPIT |
