| 摘要 |
<p>The support and guide for the sliding door is composed of a roller (1) having two truncated surfaces of revolution (2,3). These surfaces mate with complementary surfaces (8,9) in the door (10). The truncated surfaces provide vertical support, lateral guidance and centralising of the door. A central groove (4) composed of two sides (5,6) and a bottom (7) has dimensions sufficient to allow passage of the transmission chain (11). The groove supports, guides and centralises the transmission chain. To provide a better rigidity of the door, bars (12) are located in staggered rows relative to the door axis of symmetry.</p> |
