| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lift-type opening/closing machine of which the structure is simplified to suppress manufacturing/construction costs, and which can be enlarged. <P>SOLUTION: A lift-type opening/closing machine 1 comprises a door body 2 which opens/closes an outlet (c) of a canal C, a door opening/closing arm 3 which pivots the door body 2 freely rotatable in its free end 33 and of which a proximal end 34 is pivoted freely rotatable above the canal C, and arm rotating means 4 which rotates the door opening/closing arm 3 back and forth around the proximal end 34. The door opening/closing arm 3 is rotated back and forth by the arm rotating means 4, so that the door body 2 is elevated and the outlet (c) is opened/closed. Further, a door opening/closing supporting arm 5 is included which supports the door body 2 by abutting its distal end 51 to a canal-side door surface 23 of the door body 2 when the door body 2 is elevated to a position equal to or higher than a predetermined height, and supports the elevation of the door body 2 by turning in the same direction while being linked with the door opening/closing arm 3. <P>COPYRIGHT: (C)2013,JPO&INPIT |
