| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a door body opening/closing device which is capable of easily performing opening/closing operations without a driving source such as an electric motor or a prime mover with a simple structure. <P>SOLUTION: A door body opening/closing device 10 comprises: a manual capstan type winch 12 attached to a breakwater 11 which is a fixed structure; a door body 14 arranged movably forward and backward from the breakwater 11 to an opening 13 provided on a part of the breakwater 11 in order to open and close the opening 13; brackets 15 and 16 provided on a plurality of positions of the door body 14 separated along a moving direction R of the door body 14; and a wire 17 which is a cable body spread between the brackets 15 and 16. A part of the wire 17 positioned between the brackets 15 and 16 is wound five times around a rotary drum 18 of the manual capstan type winch 12. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
