| 摘要 |
A seat hinge comprising a first flange 1, integral with the sitting portion, carrying a toothed sector 2, and a second flange 3, integral with the seat-back, carrying a toothed sector 5 able to vertically engage in the sector 2, further comprises a cam 16 rotatively mounted on flange 3 and coacting with the edges of an aperture 15 formed in flange 1 so as to successively obtain rocking movements of said cam around a point of said edge and jamming effects between spiral sections of said cam and said edge. |
