In the finger joint device of the finger joint device

摘要

Topic The finger joint of the bridge, the especially expansion and contraction quantity offers the finger joint device of the resistance flexibility extra large size bridge above 300mm.SolutionsThe fixed face-plate which in both sides floor system (10) of the expansion joint of the bridge is provided it has (2) and the movable face-plate (1), the movable face-plate (1) can provide the sinking comb (11) in one end, at the same time the fixed face-plate (2) each it puts sinking comb (21) and the gap mutually and is fit, the aforementioned movable face-plate (1) the axis of rotation (8) is installed on second edge bottom, the both ends of the aforementioned axis of rotation (8) in floor system (10) direct fixing or are touched to the bearing (7) which is locked indirectly. It is possible, here, the end of floor system looks upward the second edge of the movable face-plate by revolution possibly designing, when or it becomes deformed in the downward look, because revolution occurs with the movable face-plate and floor system, level of the movable face-plate to maintain, as joint device the damage of the whole finger can be evaded, can guarantee the safe comfortable operation of the vehicle. Selective figure Figure 6