| 摘要 |
<P>PROBLEM TO BE SOLVED: To accomplish a free joint device with which partitions in a shop, exhibition booths in an exhibition, or partitions in a refuge in the case of disaster can be joined and installed easily and mutual installation angles of partition plates can be set freely. <P>SOLUTION: A free joint device comprises an accommodation body comprised of a non-magnetic substance and a magnet which is included in the accommodation body and sealed movably inside the accommodation body. Herein, the accommodation body is a non-magnetic substance sealing container and the magnet can also be sealed in such a manner that a line of magnetic force of the magnet sealed in the container becomes approximately perpendicular to a joint surface to which the free joint device is joined. <P>COPYRIGHT: (C)2013,JPO&INPIT |
