Patent attributes
A chair includes a support device that is capable of fitting support devices of another chair, a backrest that is attached to the support device or an intermediate support member provided for the support device so that the backrest is capable of being tilted rearwards, and a seat that is capable of being raised from an unfolded posture to a raised posture overlapping with a front side surface of the backrest, a plurality of chairs being capable of being fitted with each other back and forth by raising the seats thereof. The seat is attached to the support device, the backrest or the intermediate support member so that the seat is capable of being raised and rotated and so that the seat is capable of taking at least one movement of forward movement, retreat movement and tilting at the unfolded posture.
