Patent ID: 6460203
Filing Date: 2002-10-08
Classification: A61H,B05B

Abstract:
A water-driven traverse-reverse apparatus for a water fixture that is driven by a motor (2) with a demultiplier and that has an axially moving device, the apparatus comprising:means for automatically reversing movement of the axially moving device; and a mechanism including in combination an axially fixed screw (3) rotating only in one direction and a nut screw (4) moving axially and meshing with said axially fixed screw and to which one of a rotating brush, massaging roll, and a shower head can be secured, said mechanism having an essentially cylindrical shape and being driven by the motor (2), wherein said axially fixed screw (3) is provided with two separate right-hand, left-hand helical grooves (7), and said nut screw (4) has a toothing formed of only one tooth or pawl (5) which has an elongated shape and is pivoted about an axis located radially with respect to an axis of said nut screw (4) and is able to rotate about said radial axis and to engage alternatively one of the two helical grooves (7), the rotation of said screw (3) causing said tooth or pawl (5) to shift and said nut screw (4) to move axially.