| 摘要 |
<p>The base of the seat is positioned on top of a frame (1) and is assembled of two movable parts (2, 3) and a cover sheet (4) for the upper element (3). The upper element (3) can be rotated around an axle (6) located in one (5) of the rear corners while rollers are guided along a curved slot (8) in the lower part (2). Two of the corners (15, 16) of the lower part (2) are fitted with horseshoe-shaped elements (20) engaging with complementary elements (17) protruding from the lower surface of the upper part (3) and keeping the unit locked in case of an impact.</p> |
