Patent ID: 7081099

Claim:
A massage chair comprising: a footrest massager with an upright support, a foldable seat frame connected to a top of the said upright support for holding a seatback and a seat bottom, a plurality of massaging units located in both the said footrest massager and the said seatback, said massaging units comprising an electrical motor with in-line opposite driving worms, two symmetrically shaped gear cases positioned transversely over the respective said driving worms of the motor, said gear cases having upper and lower twin gear housings, four worm gears, said worm gears paired opposite one another, said worm gears of each pair are opposite and in mesh with one of the respective said driving worms, said pairs of worm gears enclosed in each of the said gear cases, each respective said worm gears being centered about a gear shaft protruding upwardly from the gear cases, four rotating massage heads, each said rotating massage head fixed to the said gear shafts of the said worm gears external to the gear cases, said rotating massage heads of the said footrest provide massage with either substantially perpendicular pressure to a relatively flat body area or multi-directional pressure to narrower lower extremities of legs, calves and/or feet whereby said massaging units of the said footrest massager and said seatback are interchangeable and are equivalently sized.