| 摘要 |
PROBLEM TO BE SOLVED: To provide an external louver for building with the weight saved, which can be easily manufactured.SOLUTION: The external louver 100 in an embodiment of the present invention comprises a first plate 1, a second plate 2 in a position opposed to the first plate 1, and a frame-like spacer unit 3 positioned between the first plate 1 and the second plate 2, to which the first plate 1 and the second plate 2 are fixed, respectively. The spacer unit 3 comprises a plurality of spacers 30,31,32 and 33 disposed in a frame form without rigid joint therebetween.SELECTED DRAWING: Figure 1 |
