PROBLEM TO BE SOLVED: To provide sealing means of a breeding device in which detachment/attachment is possible by relatively small force, and attachment direction has no restriction, and thereby the formation of multiple lips is easy.SOLUTION: In the breeding device comprising a breeding container with one side opened and a lid for covering up the opening, sealing means of a breeding device is characterized as follows: any one of the end of the breeding container and the end of the lid is disposed inside of the other side and configured so as to be sealed by a seal member interposed among both the seal member comprises an annular band a first concave part where the one end is curved and any one end edge is fitted is formed lips coming in contact with other ends are formed on the face opposite to the face formed of the first concave part and a second concave part with the other end of the seal member fitted thereto is formed in the end being fitted to the first concave part.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】比較的小さな力で脱着が可能で、かつ、取り付け方向に制限がなく、複数のリップの形成も容易な、飼育装置の密封手段の提供【解決手段】一面が開口する飼育容器と該開口を覆う蓋体からなる飼育装置において、前記飼育容器の端部と前記蓋体の端部の何れか一方が他方の内側に配置され、両者の間に介在するシール部材により密封されるよう構成されており、前記シール部材は、環状の帯体からなり、その一端が湾曲して前記いずれか一方の端部の縁が嵌合する第1の凹部が形成され、該第一の凹部が形成される面とは逆の面に、他の端部と接触するリップが形成され、前記第1の凹部に嵌合する端部には、前記シール部材の他端が嵌合する第2の凹部が形成されている飼育装置の密封手段【選択図】図2
