| 摘要 |
PROBLEM TO BE SOLVED: To prevent decline in heat insulating effects of a refrigerating unit table and improve work efficiency. SOLUTION: In the unit table, a heat insulating projecting wall is provided on the inner periphery of an opening part provided in a cooling storage ceiling part to surround it. An air vent hole is provided on the outer peripheral side lateral face of the heat insulating projecting wall and is formed to have a cross section expanded from inside toward outside on a wall face of an interior plate. Since the air vent hole is kept in the posture making the face of the unit table vertical to face upwards in an injection process of a heat insulating foamed material, air in the inner space of the unit table and gas generated from the heat insulating foamed material are released from the unit table to outside without being retained within the projecting wall, and inside of the projecting wall is filled with the heat insulating foamed material. COPYRIGHT: (C)2010,JPO&INPIT
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