Abstract
In this research, the jump robot that used an electromagnetic actuator was developed. It is thought that using the spring to compensate for the deadweight of the robot that should correspond to various situations has the problem though the spring has been used to compensate for the deadweight of the jump robot so far. Then, a simple structural linear actuator that accumulated a permanent magnet and the permanent-electromagnet was developed, and it used it to compensate for the deadweight of the jump robot instead of the spring in this research. The jump experiment of three degree of freedom jump robot that installed an electromagnetic actuator was done.
