PROBLEM TO BE SOLVED: To provide a water-feeding tool for the rearing of laboratory animals, enabling easy water-tight coupling of a cap with a water-feeding pipe and the exchange of the water-feeding pipe.SOLUTION: The water-feeding tool is composed of a water-feeding bottle 10 made of a heat-resistant plastic material and having a tubular mouth 12, a bottom-closed cylindrical cap 20 engaging with the mouth 12 with threads, a heat-resistant seal gasket 50 placed between the bottom face of the cap and the tip end of the mouth of the bottle body, a hollow cylindrical thick-walled part 52 formed at the center part of the seal gasket, and a water-feeding pipe 30 fitting to the hollow part of the thick-walled part in a water-tight and detachable state and having a water-feeding hole at the tip end. The bottom part 22 of the cap 20 has a boss hole 24 at the center, the thick-walled part 52 of the seal gasket 50 is water-tightly fit with the boss hole 24, and at least the outer surface of the bottom part 22 of the cap and the exposed part of the thick-walled part 52 are covered with a metal plate 40.COPYRIGHT: (C)2008,JPO&INPIT【課題】 キャップと給水管との水密な結合が容易で、給水管の交換が可能な実験動物飼育用の給水具を提供する。【解決手段】 耐熱性プラスチックで形成され、筒状の口部12を有する給水瓶10と、該口部12とネジにより螺合する有底筒状のキャップ20と、、該キャップの底面と前記瓶本体の口部先端面との間に嵌装される耐熱性のシールパッキング50と、該シールパッキングの中心部に形成された中空円筒状の厚肉部52と、該厚肉部の中空部と水密かつ着脱可能に嵌合し先端に給水孔を有する給水管30と、を有し、前記キャップ20の底部22の中心にボス孔24を有し、該ボス孔24に前記シールパッキング50の厚肉部52を水密に嵌合し、少なくとも前記キャップの底部22の外側面と厚肉部52の露出部とを金属板40で覆った構成としている。【選択図】 図1
