| 摘要 |
The adjustment device comprises a toothed quadrant ( 7 ) connected to the sitting surface, and a toothed quadrant ( 16 ) which is connected to the back and which can be meshed into the toothed quadrant ( 7 ) connected to the sitting surface, in a locked configuration of the seat, and can be demeshed from the toothed quadrant ( 7 ) connected to the sitting surface, in an unlocked configuration of the seat, making it possible to adjust the angular position of the back with respect to the sitting surface. According to the invention, the device comprises: an element ( 21, 40 ) which possesses a stepped quadrant having a first convex surface and at least one second convex surface, each defining an angular sequence, which are connected to one another by means of a stop surface, a pawl ( 32 ) possessing a tooth ( 35 ) capable of following each convex surface until it comes to bear against a stop surface, and means making it possible to pivot the pawl ( 32 ) in order to release the tooth ( 35 ) from a stop surface, so as to cause the seat to change from one angular sequence to the next sequence.
|
