PROBLEM TO BE SOLVED: To provide a method of manufacturing an emitter which has a plurality of ridges constituting a wedge wire structure, the method making it possible to manufacture the plurality of ridges without forcibly pulling out the ridges.SOLUTION: The present invention relates to a method of manufacturing an emitter which comprises a water intake part for taking in an irrigation liquid, a discharge part dischargeable of the irrigation liquid, and a flow path connecting the water intake part and the discharge part and circulating the irrigation liquid, the water intake part including a screen portion with a wedge wire structure having a plurality of ridges arranged therein. The manufacturing method comprises: fabricating an intermediate molded body of the emitter, the intermediate molded body having a plurality of temporary ridges higher than the ridges in the respective positions where the ridges are disposed, respectively； and forming the plurality of ridges by plastic deformation of the plurality of temporary ridges.SELECTED DRAWING: Figure 7【課題】ウェッジワイヤー構造を構成する複数の凸条を有するエミッタの製造方法であって、無理抜きをせずに上記複数の凸条を製造可能な方法を提供すること。【解決手段】本発明は、灌漑用液体を取り入れるための取水部と、灌漑用液体を吐出可能な吐出部と、前記取水部および前記吐出部を繋ぎ、前記灌漑用液体を流通させる流路と、を有し、前記取水部は、複数の凸条が配列されたウェッジワイヤー構造のスクリーン部を有する、エミッタの製造方法である。本発明の製造方法は、前記凸条よりも高さが高い複数の仮凸条を、前記凸条が配置されるそれぞれの位置に有する、前記エミッタの中間成形体を作製する工程と、前記複数の仮凸条を塑性変形させて前記複数の凸条を形成する工程と、を含む。【選択図】図７
