在已知的这类低位牵引装置中,有两根斜拉杆通过一横向布置的连结件相连,该连结件铰接在机车的另一部件上,可绕一垂直轴转动。在这里,传递力的想象作用点在静止状态时处于钢轨顶面的高度范围,在两拉杆延长轴线的交会处。当车体相对于转向架发生起落时,这一作用点的高度就会改变,因此相应地使轴重减载,特别是在起动时。 In the case of such low-lying traction devices of the known type, two diagonal tie rods are connected via a transversely arranged link, which is hinged to another part of the locomotive and is rotatable about a vertical axis. Here, the imaginary point of transmission force is at the height of the top of the rail at rest, at the point where the two tie rods extend their axes. The height of this point of action changes as the vehicle body is raised and lowered with respect to the bogie, thus de-loading the axle load accordingly, especially at start-up.