| 摘要 |
<p>The brackets (5 and 6) to which the frame (1) forming the seat and the frame (2) forming the back, respectively, are fastened are, besides their pivoting join to the abovementioned crosspiece, by virtue of the levers (7, 11 and 12), connected together by a set of bent levers (24, 25) having a point of articulation (26) between them and, beyond this point of articulation, a second join hinged with the aid of levers (31 and 32) kinematically joining the abovementioned brackets (1 and 2) together. <IMAGE></p> |
