Sanitary device

摘要

A sanitary device is comprised of a tank storing an amount of water, a water pressure source, a cylinder, a nozzle pipe slidably fitted in the cylinder such that across the nozzle pipe a base side chamber and a distal side chamber are defined in the cylinder, a return spring accommodated in the distal side chamber and urging the nozzle pipe toward the retracted position thereof, and a control device serving for establishing either a first fluid communication between the tank and the base side chamber or a second fluid communication between the tank and the distal side chamber in such a manner that the first fluid communication brings the nozzle pipe into its operating position for ejecting the water while the water pressure is being supplied to the tank and the second fluid communication, together with the return spring, brings the nozzle pipe into its retracted position.