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1. A robot leg comprising at least two phalange interconnected by an articulated joint, and further comprising an electric motor with a shaft, a cardan mechanism and a rod, wherein the electric motor with the shaft is arranged in the first phalange, and wherein the cardan mechanism comprises a driving carrier, a driven carrier, a cross and a fork, the driving carrier is connected via the shaft to the electric motor so that the driving carrier of the cardan mechanism is driven by the electric motor, the driven carrier is rotatably connected to the first phalange, the cross is disposed between the driving carrier and the driven carrier-such that the cross is rotatably connected to the driving carrier and rotatably connected to the driven carrier, the fork is rotatably connected to cross, the rod is connected at one end to the fork and at the other end to the second phalange by means of the articulated joint, wherein the connection of the electric motor to the cardan mechanism and to the rod, connected to the second phalange, ensures a transfer of the rotational movement of the electric motor to a swinging movement of the fork in the longitudinal plane with the axis of rotation in a centre of the cross, and thus also the transfer of the swinging movement of the fork to the linear movement of the rod, which ensures the swinging movement of the second leg phalange around an axis of the articulated joint.
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