Teaching aid machine with displaceable centre of gravity

摘要

The centre of gravity can be shifted outwards, or converted into a translation. The two shafts (3) on a common base plate (4) are each driven by a motor (5) in a sync. and countercurrent manner. An axis (6) is firmly fitted on each shaft. Each axis comprises a shift groove (9) in which a heavy body (1) can be shifted from one side to the other. In the circular path of th heavy bodies on the base plate are various holders for required obstacles (7). The base plate is mounted on guide rails (8) so that its enforced motion is carried out from A to B and back.