< Topic >The bedpan which by the fact that the heat storage material is utilized, does not use electricity, at the same time possesses safe structure is offered.SolutionsThe container external form sealing heat storage material 2 in the abbreviation tabular metal and the heat storage container 3 which was formed with hard plastic resin, the bedpan which provides the convex concave surface 4 which is easy to absorb heat to the surface, for example the heat storage container is formed as it is something which evades the danger of the low temperature burn by storing heat at temperature of the hot water of the bath, the heat storage container is and the bathtub increases the absorption effect of heat, in order to be able to withstand also the Bite mu behavior of the animal.< Choice figure >Drawing 2【課題】蓄熱材を利用することで、電気を使用しない、かつ安全な構造を有する湯たんぽを提供する。【解決手段】容器外形が略板状の金属や硬質のプラスチック樹脂で形成した蓄熱容器3に蓄熱材2を密封し、表面に熱を吸収し易い凸凹面4を設けた湯たんぽ、例えば蓄熱容器をお風呂の湯の温度で蓄熱することにより、低温火傷の危険性を回避するものであり、蓄熱容器が浴槽での熱の吸収効果を上げると共に、動物の噛む行為にも耐え得るように形成する。【選択図】図2