Swing has seat rod system in one unit with two parallel rotational axes connecting upper ends of two frame yokes whose lower ends are mounted for articulated movement in ground bearings

摘要

The swing has a system of rods (5) for the seat stand formed in one unit with two parallel rotational axes (3,4) connecting the upper ends of two frame yokes (9) together. The two yokes are mounted for articulated movement at their lower ends in ground bearings (1,2). The weight of the yokes induces a further acceleration of the pendulum. The pendulum movement of the seat rod system is transferred to the swing frame to move the point of the swing suspension horizontally.