| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To attain reduction of labor of opening/closing work by certainly maintaining the opening/closing retaining state of a gate at an arbitrary position by a simple constitution. <P>SOLUTION: A drive device 2 provided with a manual operation part and also provided with a drive motor 14 is provided on a frame 1, and a screw rod 3 rotated by driving of the drive motor is fixed to the frame. A movement body 4 is thread-bonded to the screw rod 3, a crank 5 is connected to the movement body 4 through a movement shaft 33, and a gate connection arm 6 is supported on a distal end of the crank. The frame 1 is connected to a free linkage 7 through a first bonding shaft 40, and the crank 5 is connected to the free linkage through a second bonding shaft 41 respectively. The crank is rotated making the movement shaft as a center while sliding along the screw rod interlocked with the movement body, the free linkage is rotated making the first bonding shaft as a center while followed to the rotation action, the gate 43 can be opened/closed through the arm 6 according to a slide distance of the crank. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
