| 摘要 |
<p>The support part (1) has a water supply tube (7) for supplying water to a fixed tube (8). A wall (4) fixes the support part on a lawn area. A plate (3) is placed at ground level and dimensioned according to maximum height of grass and minimum vertical angle of water ejection by the fixed tube when the fixed tube is fixed at the plate. A cover (2) is fixed to the plate and top of the fixed tube. A protection wall of the cover is formed between the fixed tube and a plane formed by the lawn area. A reinforcement part (6) is provided between the wall and the supply tube.</p> |
