Unfolding loading bridge for ramps

摘要

The loading bridge has on its rear end on a horizontal axis, a pivotably supported plateau whose free end is angled. The bridge can be placed in a first vertical unused position under the plateau and in a hingeable second usable position level with the plateau in which it is secured to the plateau. A four part linkage is provided which has a first link between the plateau and the ramp, a second link on the ramp with a pivotable thrust bar, and a third link (23) on the plateau with a pivotable positioning lever. The thrust bar and the positioning lever are linked together by a fourth link (24) and operated by a force element (5). The force element has a pivot point (25) on the positioning lever and an abutment position. The pivot point along with the third and fourth links are arranged in a triangle.