SYNTHETIC RESIN SPOUT DEVICE WITH VALVE

To provide a synthetic resin spout device with a valve which stably holds a valve in a cap and can improve sealability while reducing cost.SOLUTION: In a synthetic resin spout device with a valve, a body includes a spout cylinder having a top face wall, a cylindrical body, a flange surface, an engagement wall part and an engagement part, the valve has an annular base part which is formed by being press-fit to a storage space formed between the flange surface and the engagement part and being included in the spout cylinder, and can be stored in the storage space, a top plate part which is arranged on the inner peripheral side of the base part and provided with a discharge port, and a seal part which is separated from the engagement part and is provided on the side face of the base part, and a seal point is formed by bringing the seal part into close contact with the inner wall of the cylindrical body.SELECTED DRAWING: Figure 1 【課題】コストを抑制しつつキャップ内においてバルブを安定保持してシール性を向上させることが可能なバルブ付き合成樹脂注出具を提供する。【解決手段】本発明のバルブ付き合成樹脂注出具において、本体は、天面壁、筒体、フランジ面、係止壁部、及び係止部を有する注出筒を含み、バルブは、フランジ面と係止部との間に形成された収容空間に圧入されて前記注出筒に内包されてなり、収容空間に収容可能な環状の基部と、基部の内周側に配置されて吐出口が形成された頂板部と、係止部とは離間して基部の側面に設けられたシール部と、を有し、シール部が筒体の内壁に対して密着することでシールポイントが形成されてなる。【選択図】図１