FIELD: mechanical engineering. SUBSTANCE: lifting and lowering mechanism is designed for bathtub having frame carrying vertical screw and nut screwed onto it and connected to seat, and has screw rotation drive. Mechanism is further provided with supporting roller for guiding seat motion. Nut has two plates arranged at both sides and projecting from frame. Seat carcass has two clips supported with plates. EFFECT: simplified construction, easy usage of mechanism and improved convenience. 2 dwg
