Mullion type mosquito - tenuo - shi of ru - ru structure

摘要

PURPOSE:To improve sealing property by fitting sealing members on sections between both the end sections in the longitudinal direction, of transoms, and the fitting section internal-surfaces of left and right mullions, to form vertical spaces, and by arranging open air introducing ports to be communicated with the space sections, to make the pressure of the vertical space equal to the pressure of the open air. CONSTITUTION:Upper section transoms 9 and lower section transoms 10 are connected to external angle mullions and reentrant angle mullions at intervals in the vertical direction, and between upper section transoms 9 and the lower section transorps 10, space sections 11 are formed. Then, on the lower horizontal plates 45 and upper horizontal plates 42 of the upper section transoms 9, open air introducing ports 81 opened to hollow sections inside rooms are formed, and by sealing material K, the pressure of vertical spaces C is made equal to the pressure of open air. After that, rainwater infiltrated into the vertical spaces C flows into the recessed sections 51 of the upper section transoms 9 along the sealing material K, and is discharged to the suction or exhaust ports 11 from the lower section drain holes 85 of the lower horizontal plates 45 through the drain holes 84 of lower horizontal plates 44. As a result, sealing property can be improved.