PROBLEM TO BE SOLVED: To provide a valley gutter structure for greenhouse capable of minimizing an area of shadow formed in the greenhouse and preventing water leakage. SOLUTION: The valley gutter structure is equipped with a valley bottom and a transparent film 1 for valley for covering valley inclined parts 10a and 11a positioned on both sides interposing the valley bottom and a nearly V-shaped spring member 2 disposed at prescribed intervals in the longitudinal direction of the valley part in order to press the transparent film 1 for valley. As a result, since the valley part is covered by the transparent film 1 for valley, screening of solar light is suppressed and sunshine conditions are improved without forming large shadow in the greenhouse like conventional valley gutter composed of metal plates. Further, since the valley gutter is not constituted by joining a plurality of metal plates, water leakage from joints between metal plates does not occur. COPYRIGHT: (C)2007,JPO&INPIT
