| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat retaining plate having the following features: there is a low risk of being broken a container containing a heat accumulating agent even if the container has a polyhedral shape having 1 m on each side; a main construction member other than the container made of synthetic resin containing the heat accumulating agent has heat retaining effect; the heat retaining plate contributes to reinforcement; the heat retaining plate is held in a shape of plate; and the heat retaining plate is light-weighted and cheap.SOLUTION: A heat retaining plate has a laminate structure in which an intermediate plate 3 having one or more hollowed parts is provided between two planar cushioning materials 1. Containers 2 made of synthetic resin and containing a heat accumulating agent 4 are arranged in the hollowed parts 5 of the intermediate plate. |
