Abstract
We developed the space elevator climber using the spiral promotion mechanism. The spiral promotion mechanism changes the angle of the rollers and the climber ascends and descends. The performance of the spiral promotion mechanism is equal to continuously variable transmission. We can use motors with small capacity by using the spiral promotion mechanism. Moreover, the mechanism has a feature of the brake by tilting a roller diagonally. A experimentally made climber can make the angle of the roller variable from 0 degrees to 90 degrees and is made to be able to adjust pressing force between the roller and the rope. The effectiveness is confirmed by experiment.
