| 摘要 |
A chair-use auxiliary chair for improving the posture. Posture is improved gradually by using the auxiliary chair routinely while placed on a chair. The seat surface portion curved concavely is sunk in a belt form from the front center to the rear center, and a rising portion rising gently from the side toward the sunken portion is provided at the front of the seat surface portion. In the vicinity of the foot of the rising portion, a sectoral surface inclining gently in a forward direction is provided. Furthermore, a portion curved convexly is provided in the center on the base of a seat constituting section and front and rear stoppers are provided in front and rear of the convex curved portion on the extension thereof. A seat constituting supporting section having these arrangements supports the seat constituting section from below. They are coupled and integrated to produce a fully rounded chair-use auxiliary chair for improving the posture.
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