It is more than just a bit quirky, but I could understand how the Sanyo people back in the 1970’s might have thought that washing machines made to bathe humans would be a natural progression in technology. To make everything automatic was a goal back in the day, hence the bathing chamber called Ultrasonic Bath. Sanyo showcased the curious contraption during the 1970 Osaka World Expo along with other appliances the company thought would be a common fixture in modern homes.
A user would have to climb into the contraption, the process beginning with a pre-rinse cycle by a five minute water jet spray, followed by a three minute massage bath that fills the chamber with hot water. Golf-ball sized massage balls pelt the body during the massage process, combined with pressure jets made by a whirlpool. Next, a wave generator creates bubbles to wash off dirt, followed by a rinse cycle and a “5-minute dry cycle blast” that makes use of infrared and ultraviolet light. Knowing all that and realizing how much energy might go into each use, you’d have to wonder how hard Sanyo thought it was just to take a bath the old way.
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