| 摘要 |
The first air cylinder(32) vertically is attached to a side of the work jig(10). The climbing strip(36) attached to the load of the first air cylinder(34) forms the fallaway section(30)to be protruded on the upper part of the work jig adherent part(14). To the other side of the work jig, the arm(44) attaching the shock absorbing wheel(42) is joined to the bracket(41) by the rotational axis(43) and is connected with the load(49) of the second air cylinder(48). When the door assembly(3) welding is completed and operates the control valve(50), the load of the first air cylinder shortens causing the climbing strip(36) to move down to the adherent part bottom of the work jig and the arm at the work jig upper part rotates respected to the bracket rotational axis due to the load extension of the second air cylinder and moves down to the adherent part bottom of the work jig.
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