| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent not only a decrease in container internal temperature during a cold season, but also a sudden increase in internal temperature during a season from spring to summer in which temperature increases, and to enable a secure and rapid reduction in volume and composting of garbage with low water content such as weeds or branches.SOLUTION: An outer peripheral wall 2a is formed to be transparent, and an inner peripheral wall 2b to be opaque. An outer face of the inner peripheral wall 2b facing an air layer 2c is coated with a film 2d which changes color thereof by heat energy of sunlight entering from the outside to get a reflection color when reaching a preset temperature. A top face of a lid 5 is provided with a ventilation part 8 to ventilate air in a container body 1. The ventilation part 8 is formed of a ventilation hole 9, a valve member 10, and an operation device 11. The operation device 11 is equipped with a shape memory alloy member 12 deformed by the heat energy of sunlight to make the valve member 10 work. The shape memory alloy member 12 is housed in a standing transparent case 13 formed on the top face of the lid 5.</p> |
