| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, when a strong wind blows while a shoji screen is opened/closed by natural wind power in a natural wind power ventilation window, the shoji screen is closed, when the wind stops, the shoji screen is opened, opening/closing is repeated by rise-and-fall of the wind power in accordance with the wind power and, in such a case, it is desired to keep the shoji screen closed but manual operation is troublesome.SOLUTION: A natural wind power ventilation window comprises a temporary lock device 131 including a temporary lock pin 155 which is provided in a bottom rail of a shoji screen, a temporary lock arm 153 which is provided at the side of an opening frame and engaged with the temporary lock pin 155 in the case where the shoji screen is closed substantially in a first position, to block opening of the shoji screen, a temporary lock cancel hold pin 153f which is fixed to the temporary lock arm 153, a temporary lock control lever 158 which is engaged with the temporary lock cancel hold pin 153f to block and brake the temporary lock arm 153, and a temporary lock cancel member 157 which is provided at the bottom rail side of the shoji screen and acts on the temporary lock lever 158 in opening the shoji screen to cancel the block of the temporary lock arm 153. |
