(57) The foldable chair structure comprises a seat frame (1) to the sides whereof front
(2) and rear (4) legs are pivotally connected. The extensions (7) of the front legs
(2) are jour- nailed to armrests (8), in turn pivoted on a middle portion of the backrest
frame (10). The backrest frame (10) is pivotally connected to the extensions (11)
of the rear legs. An oscillable plate (30,40) is journalled on a middle portion of
the backrest frame (10) and is releasably engageable by contact with the free ends
of the rear leg (4) extensions (11) to prevent accidental folding of the chair structure.
|
|
