PROBLEM TO BE SOLVED: To optimize flow velocity distribution of cool air blown out from a blow-out duct and thereby prevent cool air in a chamber from escaping to the outside of the chamber.;SOLUTION: An open show case includes: a body 10 including an opening for taking out a commodity formed on an outer air side; a blow-out duct 20 arranged on an upper part of the opening of the body 10 and blowing out cool air f toward a lower part of the opening; and a diversion member 30 arranged in the blow-out duct 20 and diverging the cool air f flowing in the blow-out duct 20 to an outer air side cool air f1 flowing on an outer air side of the opening and chamber side cool air f2 flowing on a chamber side of the opening. An opening area a1 of an intake port of the outer air side cool air f1 of the diversion member 30 is smaller than an opening area a2 of an intake port of the chamber side cool air f2. An opening area b1 of a blow-out port of the outer air side cool air f1 of the diversion member 30 is larger than an opening area b2 of a blow-out port of the chamber side cool air f2.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2017,JPO&INPIT
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