PROBLEM TO BE SOLVED: To provide a novel air mixing injector which can take out even a small amount of content liquids in a state that the liquids are mixed with air.SOLUTION: This invention comprises: a first syringe 1 in which a cylinder 1c smaller in diameter than a body 1a is arranged at one end of the hollow body 1a a piston shaft 3 which has a first piston 2 for pressure-sending air in the first syringe 1 and pushes out the air into a penetration hole r formed at the inside of the cylinder 1c a rod member 4 which is fixed to the first piston 2 and forms a passage r1 of the air which is pushed out by the first piston 2 between the penetration hole r and itself and a second syringe 5 which has a second piston 6 for pushing out the content liquids by a pressing force from the rod member 4 as a biasing force, and has an internal passage r2 which mixes air for imparting the biasing force to the second piston 6 into the content liquids which are pushed out by the second piston 6.COPYRIGHT: (C)2013,JPO&INPIT【課題】少量の内容液であっても空気を混合させた状態で取り出すことのできる、新規なエア混合式噴出器を提供する。【解決手段】本発明は、中空の胴部1aの一端に当該胴部1aよりも小径の筒体部1cが設けられた第1シリンジ1と、第1シリンジ1内の空気を圧送する第1ピストン2を有して当該空気を筒体部1cの内側に形成された貫通孔rに押し出すピストンシャフト3と、に第1ピストン2に固定されるとともに当該貫通孔rとの間に第1ピストン2で押し出された空気の通路r1を形成するロッド部材4と、ロッド部材4からの押圧力を付勢力として内容液を押し出す第2ピストン6を有し当該第2ピストン6が押し出した内容液に第2ピストン6に付勢力を与える空気を混合させる内部通路r2が形成された第2シリンジ5を備える。【選択図】図3
