| 摘要 |
A chair that includes a frame, a seat, and a back support that has a lumbar support device to support the back bone of the user. The seat includes a soft cushion and a support panel that includes a front and rear disc part of which the latter protrudes as a free end from the first and is not in contact with the back support. The cushion has a rear seating area that is recessed relative to a forward seating area so that a transition area is formed that provides a knob against which the user's sitting bones may bear against with a view to prevent forward gliding of the user's thigh bones along the seat. The rear disc part is also lowerable from an upper starting position to enable a variation of the height level.
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