PURPOSE: To obtain a comfortable roof light window having a smart ridge. ;CONSTITUTION: A plurality of ridge members 2 having approximately T-shaped sections and a concentrated mounting member 4 mounting the tops of a plurality of ridge members 2 concentratedly are adopted to constitute a frame of the roof light window, and fine and smart parts in T-shaped lower parts of the ridge members 2 can be seen from the lower part. The concentrated mounting member 4 is formed of a cylinder 5 and an external cylinder 6, the external cylinder 6 can be divided into two parts, one piece 6a is welded to the outside of the cylinder 5, and the other piece 6b is mounted to the outside of the cylinder 5 with a bolt 7 in a detachable manner. Four ridge members 2 mounted to one piece 6a of the external cylinder 6 and four ridge members 2 mounted to the other detachable piece 6b make a total of 8, and a plane octagonal roof light window is easily divided into two parts so that it can be conveyed.;COPYRIGHT: (C)1995,JPO
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