Rotational adjustment device

摘要

An apparatus is disclosed for adjusting the rotational position of a chair comprising a pedestal supporting a radially outwardly extending flange. A seat base is secured to the seat and adapted for rotational connection with the pedestal for enabling rotation of the seat. A plurality of notches are defined about the flange. The lever pivot is secured for accommodating for a right-handed or a left-handed operator seated in the seat. The notch pin extends from the lever for engaging with one of the plurality of notches for locking the rotational position of the seat base relative to the pedestal.