| 摘要 |
<p>The pivot, located between a vehicle seat and back, consists of first and second flanges (10, 20) which are fixed to the seat base and back respectively and are able to turn relative to one another. The second flange has a toothed inner rim (21) engaging with at least one wedge (40) having a toothed outer surface and able to slide radially in a guide (11) fixed to the first flange between locked and released positions. The movement of the wedge is controlled by a spring-loaded cam (31) on a control shaft (33). Each wedge (40) has two opposite stop faces (45) extending from points close to their toothed edges to shoulders (44) situated opposite the teeth, while the guides (11) have counter stops facing towards the stop faces and shoulders and having a lower mechanical strength than the stop faces.</p> |
