(57) A component of swivel chair, especially a chair mechanism with rolling axis adjustment.
It mainly solves the technical problem that the same mechanism cannot satisfy different
people with different weight. The mechanism including base plate (1), middle block
(2), back bracket (3), wherein in said base plate (1) there is an oval hole at the
rear part (4), mid of the base plate stamped the 2nd oval hole (5), the 1st oval hole through the 1st rolling axis (6) connect base plate (1), middle block (2), back bracket (3), the
2nd oval hole through 2nd rolling axis (7) connect base plate (1), middle block (2), middle block front part
has the 3rd oval hole (8), the 3rd oval hole through 3rd rolling axis (9) connect base plate (1) and mid block (2).
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