AUTOMATIC WALL SURFACE OPENING/CLOSING BLADE DEVICE IN STATION BUILDING

摘要

PROBLEM TO BE SOLVED: To provide an automatic wall surface opening/closing blade device in a station building capable of securing safety of the users or the like on a platform by reducing a pressure fluctuation during the passing of high-speed trains therethrough in a shelter station building through which the high-speed trains pass. SOLUTION: A rotating center shaft 11 and a center shaft blade 12 capable of closing or opening a blade mounting hole 3 are attached to a box-shaped casing 2 the platform side end surface of which is opened and the station outer side end surface of which comprises the blade mounting hole 3. An impulsive air pressure fluctuation from the platform side by a high-speed train T passing through the station building 51 at a high speed is guided to the inner surface lower half part of the center shaft blade 12 by a shielding guide plate 13 to the center shaft blade 12 so as to open the blade mounting hole 3 for relieving the impulsive air pressure fluctuation to the outside. After the impulsive air pressure fluctuation has been eliminated, the center shaft blade 12 is rotated by a gas spring 15 in the closing direction to close the blade mounting hole 3. In this case, a resistance force against a force in the closing direction is imparted to the center shaft blade 12 by an oil damper 16 through a rotating piece 14 to delay the closing time of the center shaft blade 12. COPYRIGHT: (C)2011,JPO&INPIT