| 摘要 |
<p>For the purpose of providing convenience of folding and unfolding of the chair, as well as good rigidity of the latter in the unfolded state, the lateral elements (1, 3-7), of the seat frame, and the elements of the backrest (2) are linked at the rear to an articulated frame composed of two transverse compasses elements (8, 9) and a central control upright (10). The two main lateral elements of the frame (7) are moreover linked by two articulated crossed arms (12, 13), articulation elements (13) of these arms being located in a zone of intermediate height. The central upright (10) of the frame comprises a control handle (10') which makes it possible very easily to fold and unfold the folding chair. <IMAGE></p> |
