| 摘要 |
PROBLEM TO BE SOLVED: To provide a new entry blocking device which can be installed between a base-isolated structure and another structure, and which can be installed even if an interval between them is short. SOLUTION: This entry blocking device comprises: a bendable/stretchable elastic member 5; a plurality of sets of blocking shaft members 4 which are equipped with a first connecting member 6 connected to one end of the elastic member 5, and a second connecting member 8 connected to the other end thereof; a plurality of first holding members 10 which are fixed to the base-isolated structure 2 or another structure 3 in a multistep manner, and which each have a holding portion 10a for holding an end 6a of the first connecting member 6; and a plurality of second holding members 9 which are fixed to another structure 3 or the base-isolated structure 2 in a multistep manner while facing the first holding members 10, and which each have a holding portion 9a for holding an end of the second connecting member 8. The plurality of sets of blocking shaft members 4 are laid between the first and second holding members 10 and 9 in such an attitude as to be approximately in line with each other in a normal case, respectively. COPYRIGHT: (C)2008,JPO&INPIT
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