| 摘要 |
PROBLEM TO BE SOLVED: To provide a water discharge device capable of giving a sufficiently great flow rate fluctuation to water to be discharged without using a large-scale pump, to form sufficiently large water masses even when a distance between a water discharging point and a water hitting point is shorter.SOLUTION: The water discharge device includes sub water flow introducing means. The sub water flow introducing means has a third wall surface 108c extending from the side of an accelerating flow path 102 to the side of a discharging flow path 103 in a direction of leaving a first water reservoir part 106, whereby part of an accelerated jet flow which is not received directly from a jet nozzle 10b by the discharging flow path 103 flows along the third wall surface 108c so as to be introduced into a second water reservoir part 107 and then introduced into the first water reservoir part 106, while the remainder is introduced into the first water reservoir part 106, not via the second water reservoir part 107. Namely, it introduces a sub water flow so that the flow amount of the part is greater than the flow amount of the remainder. |
