Abstract: This invention refers to a perfected roller-skating doll of the type that alternately moves its legs and head in sync, and which has two speeds that alternate while the doll is in operation. The system is based on a gear mechanism worked by a motor which includes features that allow a cog wheel to axially move so that it can engage alternately with one or another pinion, of different sizes, in order to achieve the two speeds. The mechanism is complemented with a drum which is made to revolve in order to transmit movement to the legs. The drum in question is provided with a winding, ring-shaped groove inside which a pin emerging from each corresponding leg freely moves. This pin joins each corresponding to the mechanism assembly and, in particular, to the drum groove. On the shaft on which the drum-affecting pinion is mounted, there is a socket integral with the pinion, and which houses a widened section of the aforementioned shaft.

Abstract: A roller-skating doll includes a gear mechanism operated by an electric motor. The gear mechanism provides a revolving movement to a drum having a winding, ring-shaped groove containing two pins belonging to levers that actuate the legs of the doll. These levers are linked to two other levers, articulated in the middle, which convey the movement to the arms of the doll. There is also an eccentric on the outlet shaft of the drum in order to translate the movement to the head of the doll. The winding groove provided in the drum ensures that the movements of the legs, arms and head of the doll are synchronized. In addition, there is a device that causes the mechanism to stop for a moment and then to start again, as well as a clutch which allows the motor to idle in the event the doll would fall over if blocked by an obstacle.