| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gate door opening/closing auxiliary device for a loading platform having sufficient strength even though a connecting part with a gate bracket 7 and a joint link 8 is made into a thin-shape type. <P>SOLUTION: Two gate brackets 7 are mounted in right and left to a gate door 3 at an interval, and circular holes 20 are opened from inside toward outside in the opposite positions of the gate brackets 7 respectively. Both ends of the joint shaft 11 horizontally mounted to the top end of the joint link 8 by welding are inserted into the circular holes 20 respectively. Conventionally, the both ends of the joint shaft 11 are fixed to the bracket 7 by welding a pipe on the top end of the joint link 8 and inserting the joint shaft 11 in the pipe. This device becomes a thin-shape type as the amount of the projection is reduced by just the amount that the pipe is excluded. <P>COPYRIGHT: (C)2004,JPO</p> |
