| 摘要 |
<p>PURPOSE:To enable to perform both drip and spray type water supply by fitting a water scattering tube to a small communicated port of a joint and fitting a spray hose into a large communicated port on the joint. CONSTITUTION:A plurality of small holes 25 are prepd. on the bottom 21 of lid body 18 and one large hole 36 is prepd. on the center area. The small holes 25 and small penetrating holes 26 constitute a small communicated port 38. The large hole 36 and large penetrating hole 37 constitute a large communicated hole 39. The lid body 18 is screwed into a coupling body 15, and packing 22 is made watertight by strongly pinching with the bottom 21 of the lid body 18 and the insertion end 32 of the coupling body 15. Drip nozzles 9 at the lead edge of water feeed tubes 3 are located toward plants 29 and flowers 30. When water supply time has come, water supply controller 5 operates so that water passes through supply hose 2, enters coupling 1, is branched into the water feed tubes 3 and spray hoses 10, and water is supplied to drip nozzles 9 and spray nozzles 11.</p> |
