The box-frame construction which uses the wall communication tubing material and that wall communication tubing material for the wall perforation hole

摘要

Topic Airtightness inside the wall the wall communication tubing material which containment possibly can be installed is offered even in the perforation hole where central position of external wall material side and inner wall material side of the wall has slipped. Solutions The external wall material arrival possibly, the whole the wall communication tubing material 1 which with the synthetic resin which possesses flexibility and springiness was formed just in tubed is in the perforation hole 14 of the wall which consists of 13 which possesses interval and inner wall material 11 and 12. As for this wall communication tubing material 1, rim diameter L is larger than diameter A of the perforation hole on the median, length is longer than interval W of the external wall material and the inner wall material, forms the expansion and contraction section 2 of bellows condition of restoration possible thickness, one side of the said expansion and contraction section 2 in the edge, as the cylindrical inner wall fit section 3 whose, length is equal to the thickness B of inner wall material 12 is formed forms flange 4 in the Tip of the said inner wall fit section 3, in the other edge of aforementioned expansion and contraction section 2, the cylindrical external wall whose length is equal to the thickness of external wall material 13As fit section 6 is formed, the length which is summed up with the length of external wall fit section 5 in the Tip of the said external wall fit section 5 external wall material forms the cylindrical inserting guide section 6 whose is longer than interval W of 13 and inner wall material 11. Choice figure Drawing 6