To provide a sluice opening/closing device equipped with: an actuation interlock mechanism for actuating self-weight descending devices of both left and right side opening/closing machines in connection with each other, when electric power is failed in the case of emergency, disaster, or the like; a wire rope overload/sagging detection device; and a wire rope length adjustment device.
A sluice opening/closing device 1 is equipped with self-weight descending devices 6, and moves a door body 3 up and down by a pair of opening/closing machines 4, 4 each comprising an electric motor 5 and a rope take-up drum 7 to open and close a sluice. An actuation interlock mechanism (20) which actuates one opening/closing machine 4 and thereby actuates the self-weight descending device 6 of the other opening/closing machine 4 is provided between the pair of opening/closing machines 4, 4. Thus, the self-weight descending devices 6, 6 of the left and right side opening/closing machines 4, 4 can be actuated in connection with each other to allow the door body 3 to be lowered by its own weight even when electric power is failed in the case of emergency, disaster, or the like.
OGASAWARA TAKASHI
Miyazaki Yoshio
Kaoru Onozuka
Tsutomu Kato
Akio Tagami
High Masahiro
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