| 摘要 |
<p>The mechanism is located on a side area close to the connection between the seat and the backrest, and comprises an extension (3) of the seat frame (2) having a sinuous sector or edge (4) supporting a cam (6) mounted to turn freely about a shaft (7) and located between a pair of lugs (5) lying at the end of the arm (1) that constitutes the armrest as such, which lugs (5) and extension (3) have facing holes for the respective turning shaft (8), the extension (3) being kept fixed and the arm (1) turning to be able to take up a working or horizontal position, a folded down position and a folded up position, during which movements the cam (6) slides along and abuts on the sinuous sector (4) thereby for the cam to turn in either direction and for the stable positions to be reached when the arm (1) is moved. <IMAGE></p> |
