PROBLEM TO BE SOLVED: To change feeling of stimulation greatly by changing the number of injection nozzles.SOLUTION: A fluid-type massage apparatus includes a rotary body 52A provided in a drum 36A and rotatable relative to a top wall member 51A of the drum 36A exclusively in a range of a predetermined angle using a spindle 32A as a center, and pressed to the top wall member 51A when receiving pressure of an injection fluid. First openings 61A are formed in the top wall member 51A and a plurality of second openings 62A and 63A having different opening areas from each other are formed in the rotary body 52A. The change of a relative rotation position of the rotating body 52A relative to the top wall member 51A allows a first matching state and a second matching state to be selected. The first matching state is in which one of the second openings 62A is matched with one of the two first openings 61A (the number of injection nozzles is one in Fig. 12), and the second matching state is in which two of the second openings 63A are matched with the two first openings 61A (the number of injection nozzles 12A is two in Fig. 13).COPYRIGHT: (C)2014,JPO&INPIT【課題】噴射ノズルの数を変更して、刺激感を大きく変更する。【解決手段】ドラム36A内に設けた回転体52Aが、ドラム36Aの頂壁部材51Aに対して支軸32Aを中心として所定角度範囲だけ相対回転可能で、かつ噴射用液体の圧力を受けた時に頂壁部材51Aに圧着される。頂壁部材51Aに第1開口部61Aが形成され、回転体52Aに互いに開口面積の異なる複数の第2開口部62A、63Aが形成される。回転体52Aにの頂壁部材51Aに対する相対回転位置の変更により、2つの第1開口部61Aの一方に対して1つの第2開口部62Aが整合される第1整合状態(図12で、噴射ノズル数が1つ)と、2つの第1開口部61Aに2つの第2開口部63Aが整合される第2整合状態(図13で、噴射ノズル12Aの数が2つ)とが選択できる。【選択図】 図3
