| 摘要 |
<p>The spray plate (2) of the shower spray head (10) has at least one internal endless trackway (22) of channel or groove form in communicating register with a series of spray emission outlet openings (20) and receives for travelling sliding movement therein by water supply flow pressure a valve member or slug (21). Dependent on the length of the slug (21) one or more outlet openings (20) are momentarily closed in a successive manner as the slug (21) travels around the trackway (22) which interrupts the outlet spray emission in droplet form for providing a rain or pulsating effect emission. A plurality of trackways (22) may be provided in a concentric or similar arrangement each receiving a slug (21). The slugs (21) may travel in opposite directions. Stops means (4) having a pin or bar (40) is externally operable (44) to obstruct the or each trackway (22) and so stop the slug (21) for providing a continuous outlet spray emission. Release operation of the pin (40) reverts back to the rain or pulsating effect emission. The or each trackway (22) may follow a circular or non-circular path including triangular or oblong arrangements. The valve member may be of ball or roller form (210) or a series thereof which may be interlinked.</p> |
