PROBLEM TO BE SOLVED: To improve safety of a fluid injection device.SOLUTION: A fluid injection device comprises: a fluid container having a fluid storage section and a fluid outlet a fluid pressing section pressing the fluid storage section and causing fluid to outflow from the fluid outlet connection piping having one end connected to the fluid outlet a fluid injection section injecting the fluid taken in from a fluid intake port connected with the other end of the connection piping in a pulsed manner in response to a driving signal a pressure detection section detecting a pressure in the fluid storage section an injection strength input section receiving injection strength of the fluid a pressing control section controlling the pressure in the fluid storage section such that a value of the pressure therein is closer to a target pressure value corresponding to the injection strength an injection instruction input section receiving a fluid injection instruction and a fluid injection control section outputting the driving signal. The fluid injection control section does not output the driving signal when the value of the pressure in the fluid storage section is equal to an upper limit value of a first predetermined range set by the target pressure value as a reference or more and outputs the driving signal when the value thereof is equal to the upper limit value or less at the time of reception of the fluid injection instruction.COPYRIGHT: (C)2016,JPO&INPIT【課題】流体噴射装置の安全性を向上させる。【解決手段】流体収容部と流体出口とを有する流体容器と、流体収容部を押圧して流体出口から流体を流出させる流体押圧部と、一端が流体出口に接続される接続配管と、接続配管の他端が接続される流体取入口から取り入れた流体を駆動信号に応じてパルス状に噴射する流体噴射部と、流体収容部内の圧力を検知する圧力検知部と、流体の噴射強度を受付る噴射強度入力部と、流体収容部内の圧力を噴射強度に応じた目標圧力値に近づけるように制御する押圧制御部と、流体噴射指示を受付る噴射指示入力部と、駆動信号を出力する流体噴射制御部とを備え、流体噴射制御部は流体噴射指示を受付た際に流体収容部内の圧力が目標圧力値を基準にして定められる第1所定範囲の上限値以上である場合には駆動信号を出力せず、上限値未満である場合には出力することを特徴とする流体噴射装置。【選択図】図8
