| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent complete blocking because a thermal expansion material dropping with expansion exists, when the thermal expansion material used in a fire-proof blocking implement expands by heat. <P>SOLUTION: A large amount of expanded thermal expansive members generated by the heat is generated in an outer part of a flame-resistant cylinder, by deforming a portion where the flame-resistant cylinder is bent, to be developed to an original form, or a space generated by reducing a volume in a resin pipe or the like by the heat is efficiently filled to block a pipe line completely, by reducing the dropping from the flame-resistant cylinder or the like. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
