HEAT INSULATING CONTAINER OF SYNTHETIC RESIN AND HEAT INSULATING COVER OF SYNTHETIC RESIN

摘要

An insulated synthetic resin container 1 is provided by forming a container having a double walled structure by integrating a synthetic resin inner container 4 and a synthetic resin outer container 3 separated by a space 5 and forming an insulating layer 6 by enclosing a gas having low thermal conductivity in space 5 of the above-mentioned container. This insulated synthetic resin container 1 comprises a gas replacement penetrating hole formed in the center of one of the synthetic resin inner container 4 and synthetic resin outer container 3; and a contact preventing projection 14 formed in the vicinity of this gas replacement penetrating hole 7 projecting into the insulating layer 6 from the surface in which this penetrating hole 7 is formed or from the opposite surface. Due to this structure, when enclosing the above-mentioned gas in the space 5, vacuum evacuation to exchange the gas inside of space 5 is conducted, and the inner container 4 and outer container 3 are deformed without contact, thereby, efficient vacuum evacuation is possible, and excellent insulating ability is obtained.