PROBLEM TO BE SOLVED: To provide a liquid spray device capable of stabilizing spraying with a simple structure at low costs, and to provide a cosmetic liquid spray device.SOLUTION: A cosmetic liquid spray device (1) includes: a tank (3) composed of a cylindrical protruding part (31) which has a liquid supply port (33) and is formed protruding and a liquid holding part (32) which holds the liquid (7) a case (2) an elastic diaphragm (4) which is supported by the case (2), is attached to the liquid supply port (33), and has a number of micropores and an ultrasonic vibrator (5). The ultrasonic vibrator (5) causes ultrasonic vibrations in the elastic diaphragm (4) and a liquid (7) stored in the tank (3) is sprayed from the liquid supply port (33) through the number of micropores of the elastic diaphragm (4). An air circulation hole (30) which allows the interior of the tank to communicate with the exterior is formed at the cylindrical protruding part (31) of the tank (3). A bore diameter of the air circulation hole (30) is formed so as to be larger than a bore diameter of each micropore of the elastic diaphragm (4).COPYRIGHT: (C)2014,JPO&INPIT【課題】簡単な構成で安価に噴霧を安定化し得る液体噴霧装置及び化粧液噴霧装置を提供する。【解決手段】化粧液噴霧装置(1)は、液供給口(33)を有し突出して形成された筒状突出部(31)及び液体(7)を保持する液保持部(32)からなるタンク(3)と、ケース(2)と、ケース(2)に支持されかつ液供給口(33)に装着された多数の微孔を有する弾性振動板(4)と、超音波振動子(5)とを備え、超音波振動子(5)にて弾性振動板(4)を超音波振動させてタンク(3)に貯留された液体(7)を液供給口(33)から弾性振動板(4)の多数の微孔を通して噴霧する。タンク(3)の筒状突出部(31)には、タンク内部と外部とを連通する空気流通孔(30)が形成されている。空気流通孔(30)の孔径は、弾性振動板(4)の微孔の孔径よりも大きく形成されている。【選択図】図1
