PROBLEM TO BE SOLVED: To simplify a constitution by dispensing with a double door.SOLUTION: This shield box for biomagnetic measurements consists of an inner container 1 that is made from a magnetic/radio shielding material and can accommodate a small animal such as a mouse, and an outer container housing the inner container 1 in its inside and made from the magnetic/radio shielding material. The inner container 1 and the outer container 2 are concentrically disposed and, when an outer container cylindrical body 2b alone of the outer container 2 is rotated, an inner container opening 1a and an outer container opening 2a are located in a superposed position at one time and non-superposed position at another time. When the inner container opening 1a and the outer container opening 2a are located in the superposed position, an access from the outside to the inside of the inner container 1 becomes possible. When the inner container opening 1a and the outer container opening 2a are located in the non-superposed position, the outside noise is shielded. Non provision of the double door can simplify the constitution.COPYRIGHT: (C)2010,JPO&INPIT【課題】構成を簡単化する。【解決手段】磁気・電波シールド材料製であり且つマウスのような小動物を内部に収容しうる内容器(1)と、内容器(1)を内部に収容する磁気・電波シールド材料製の外容器(2)とからなり、内容器(1)と外容器(2)とは同心に配置され、外容器(2)の外容器筒体(2b)だけを回転させれば、内容器開口(1a)と外容器開口(2a)とが重なる位置になったり、重ならない位置になったりする。【効果】内容器開口(1a)と外容器開口(2a)とが重なる位置にすると、外部から内容器(1)の内部にアクセスできる。内容器開口(1a)と外容器開口(2a)とが重ならない位置にすると、外部ノイズをシールドできる。観音開きの扉を設けないから、構成を簡単化することが出来る。【選択図】図1
