Surface treating device

A surface treating device having a nozzle for ejecting a surface treating material toward the surface of an object, which comprises

• a swivel bearing mechanism, an oscillating tube connected to the swivel bearing mechanism so as to be free to pivot about an axis center of the swivel bearing mechanism and such that with respect to the axis center, an end portion thereof is positioned on the side facing the object surface and the other end portion thereof is positioned on the side opposite to the object surface, the nozzle connected to the one end portion side of the oscillating tube, and a self-revolving/else-revolving mechanism connected to the other end portion side of the oscillating tube and making the nozzle self-revolve and else-revolve about the axis center of the swivel bearing mechanism,
• the self-revolving/else-revolving mechanism including a main crank which has a driven shaft positioned on an axis passing through the axis center of the swivel bearing mechanism on the other end portion side of the oscillating tube and rotationally driven by driving means, and which is rotationally driven integrally with the driven shaft;
• a subordinate crank having a rotating shaft mounted at a site eccentric from the axis of the main crank and having an axis obliquely intersecting the axis of the main crank;
• universal joint means connecting that site in the subordinate crank which is eccentric from the axis, to the other end portion side of the oscillating tube;
• a subordinate bevel gear connected to the rotating shaft of the subordinate crank and rotating integrally with the subordinate crank;
• a main bevel gear which is provided integrally on a shaft having an axis common to the driven shaft of the main crank and being disposed so as to be free to rotate relative to the driven shaft, and which is engaged with the subordinate bevel gear;
• and the subordinate bevel gear revolving about the main bevel gear according to the rotation of the main crank while revolving on its own axis.