DRAIN OUTLET STRUCTURE FOR SHOWCASE

To prolong a time until filter clogging occurs.SOLUTION: A filter member 40 which includes a filter base part 41 that forms a bottomed cylindrical form and has a plurality of introduction ports 412a formed on a side peripheral part 412 along a circumferential direction at prescribed intervals and a filter flange part 42 extending outward in a radial direction from an upper end of the filter base part 41 is mounted on a drain water reception member 30 installed at a drainage port 16a formed on a heat insulation bottom wall 15 of a showcase. The filter member 40 includes: a plurality of first weir parts 421 which are provided at an outer peripheral edge part of the filter flange part 42 along the circumferential direction in a mode in which they extend along an axial direction at prescribed intervals; and a plurality of second weir parts 422 which are provided at an inner peripheral edge part of the filter flange part 42 along the circumferential direction in a mode in which they extend along the axial direction at prescribed intervals. In the plurality of second weir parts 422, intervals between adjacent weir parts are smaller than intervals between adjacent weir parts of the first weir part 421.SELECTED DRAWING: Figure 3 【課題】フィルタ詰まりが発生するまでの時間を長大化させること。【解決手段】有底円筒状の形態を成し、側周部分４１２に複数の導入口４１２ａが周方向に沿って所定間隔毎に形成されたフィルタ基部４１と、フィルタ基部４１の上端部より径方向外部に延在するフィルタフランジ部４２とを備えたフィルタ部材４０が、ショーケースの断熱底壁１５に形成された排水口１６ａに設置されたドレン水受部材３０に載置されてなり、フィルタ部材４０は、フィルタフランジ部４２の外周縁部に、周方向に沿って所定間隔毎に軸方向に沿って延在する態様で設けられた複数の第１堰部４２１と、フィルタフランジ部４２の内周縁部に、周方向に沿って所定間隔毎に軸方向に沿って延在する態様で設けられた複数の第２堰部４２２とを備え、複数の第２堰部４２２は、互いに隣接するもの同士の相互間の間隔が、互いに隣接する第１堰部４２１の相互間の間隔よりも小さい。【選択図】図３