Lever construction for transmission of force, has traction element fixed at bell crank lever axis, where lever is supported in swivelable manner at bell crank lever, which is designed as dual bell crank lever

摘要

The construction (1) has a lever (3) connected with a bell crank lever (2) at an end (6) via a joint (7). The bell crank lever is designed as a dual bell crank lever (10), where a traction element (9) i.e. chain, is attached in a hinged manner at an end point (14) of the crank lever. The traction element is guided over two roller elements (15, 16) in hinged manner and fixed at a bell crank lever axis (18), where the lever that is extended is supported in a swivelable manner at the bell crank lever. The roller elements are designed as toothed wheel and a base roller element, respectively.