JPS6220672U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例の定量噴出器の断面
図、第２図は第１図の要部拡大図、第３図は他の
実施例の説明図、第４図は従来の定量噴出器の断
面図である。 １…筒状本体、２…容器部分、３…噴出口、９
…弁体、１１…弁座、１５…定量室、１７…ピス
トン、１８…ステム、２１…プツシユボタン、２
３…第２ピストン、２５…通気孔、２６…弁パツ
キン。 Fig. 1 is a cross-sectional view of a quantitative ejector according to an embodiment of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is an explanatory diagram of another embodiment, and Fig. 4 is a conventional quantitative ejector. FIG. 3 is a cross-sectional view of the ejector. 1... Cylindrical body, 2... Container portion, 3... Spout, 9
... Valve body, 11 ... Valve seat, 15 ... Metering chamber, 17 ... Piston, 18 ... Stem, 21 ... Push button, 2
3...Second piston, 25...Vent hole, 26...Valve gasket.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内部に流体を収納する容器部分を備えた筒状本
体と、筒状本体の先端側に設けられた噴出口と、
容器部分と噴出口との間に設けられた定量室と、
容器部分から定量室内に送られた流体を先端側へ
押し出すピストンと、ピストンを摺動させるステ
ムとを備え、ステムを先端側へ押すことにより定
量の流体を噴出口から噴出させる定量噴出器にお
いて、ステムの基端寄りに筒状本体内を摺動する
第２ピストンを設けることにより容器部分の基端
側と外部とを遮断し、この遮断された内外を連通
する通気孔を第２ピストン域いはその付近に設け
、外部から容器部分内への気体の流入のみを許す
逆止弁手段を通気孔に設け、ステムの行程長をピ
ストンの定量室内での行程長と定量室外での行程
長の和とし、ピストンにて加圧された定量室内の
流体の通過のみを許す逆止弁手段を定量室の先端
側出口に設けたことを特徴とする定量噴出器。 a cylindrical body having a container portion for storing fluid therein; a spout provided at the tip side of the cylindrical body;
a quantitative chamber provided between the container part and the spout;
A metering ejector that includes a piston that pushes fluid sent from a container portion into a metering chamber toward a distal end, and a stem that slides the piston, and that squirts a fixed amount of fluid from a spout by pushing the stem toward the distal end, By providing a second piston that slides inside the cylindrical body near the proximal end of the stem, the proximal end side of the container portion is isolated from the outside, and the ventilation hole that communicates the blocked inside and outside is connected to the second piston area. A check valve means is provided in the vicinity of the vent hole, and a check valve means that only allows gas to flow from the outside into the container portion is provided in the vent hole, and the stroke length of the stem is set to be equal to the stroke length of the piston inside the metering chamber and the stroke length outside the metering chamber. 1. A metering ejector, characterized in that a check valve means is provided at the tip end side outlet of the metering chamber to allow only passage of fluid in the metering chamber pressurized by a piston.