Body support ratcheting mechanism

摘要: A body support ratcheting mechanism for a medical or dental chair stool. The includes shaft that is attached to the member top upper surface of mechanism. Within ratchet, mounted shaft, and pawl, within housing, allow be pivoted toward abdomen occupant comfortable position. When leans against mechanism, held in position by interlocking contact pawl ratchet gear tooth. For ease egress from ingress chair, can depress spring biased release arm allows swung away chair.