| 摘要 |
<p>The box comprises two parts a cover and a bottom the cover being articulated to the bottom. The articulation system comprises a first ramp (22) which is carried by the cover and formed by a surface centred on the articulation axis (A). A second ramp (33) is carried by the bottom and has a complementary profile to that of the first. It is located so as to engage the first ramp during pivoting of the cover relative to the bottom. A spring constrains the first ramp supported against the second along the articulation axis. The ramps have a profile symmetrical about the articulation axis. Each profile presents a succession of hollows (25,26,31,32) and alternate crests (23,24,29,30).</p> |
