| 摘要 |
PURPOSE:To change a chair to a suitable use posture in correspondence to respective uses and to present enough function by freely changing the inclination angle of two cushion seats to upper/lower position and in forward backward direction or the upper/lower height of the whole seats. CONSTITUTION:The chair is constituted by defining a leg body 2 and a seat body 1 as a basic construction. Then, the leg body 2 has a height control means 15 and the height to support the leg body 2 can be freely changed. The seat body 1 supports cushion seats 4, which can inclined forward/backward, in both edges of a seat frame 3 to be bent in a semicircular shape. A locking means 34 is provided between a guide means 16 or the leg body 2 and sent frame 3 to support the above mentioned seat frame 3 by the guide means 16 provided on the upper part of the leg body 2 freely movably along a bending line and to block the movement of the seat frame 3. By moving the seat frame 3 along the bending line, the upper/lower position relation of two cushion seats 4 provided on both edges of the frame can be changed and further, in the respective changing positions, the respective cushion seats 4 can be inclined forward/ backward to the necessary position. |
