| 摘要 |
PROBLEM TO BE SOLVED: To provide an air curtain device that securely blocks air entering and exiting from a cooling room at its doorway.SOLUTION: An air curtain device (10) includes casings (21, 31) and a pair of air blowing devices (20, 30) which have blower fans for forming internal air flows in the casings (21, 31) respectively and are provided such that mutual air inlets (24, 34) and air outlets (35, 25) face each other. An air flow is formed by the internal air flow in a ventilation space (10a) between both the air blowing devices (20, 30) The air outlets (25, 35) are provided with blowout grills (25a, 35a) which have many ventilation holes formed penetrating in a thickness direction, and are formed in a V shape such that depth-directional center parts are recessed more toward inner sides of the casings (21, 31) than both the ends. |
