| 摘要 |
PROBLEM TO BE SOLVED: To provide a blocking structure for a penetration portion formed in a plate body such as a fireproof plate or an internal finishing plate laid on an internal surface of a structure including various buildings and constructions, for instance, the penetration portion enabling a long member such as a pipe to penetrate therein, wherein the blocking structure facilitates visual observation etc. on the periphery of the long member at the time of movement of the plate body when it is mounted or at the time of maintenance of the same, and allows easy, positive, and quick blocking of the long member penetration portion penetrating through the plate body. SOLUTION: The blocking structure for the long member penetration portion formed in the plate body 2, is set up by penetrating the long member 9 such as the pipe into an opening 2a formed in the plate body 2 including the fireproof plate. According to the blocking structure, the opening 2a has a diameter larger than that of the long member 9, and a pair of auxiliary plates 20, 20 having split holes 20a in which the long member 9 passes is arranged on one surface of the plate body 2 to block the opening 2a. Further one-side operable bolts 10 are each inserted into bolt insertion holes 20b, 2b formed in the auxiliary plate 20 and the plate body 2, respectively, and therefore the auxiliary plates 20 are mounted and supported on the plate body 2. COPYRIGHT: (C)2009,JPO&INPIT
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