| 摘要 |
<p>The lift system (2) has a drive transmission arrangement consisting of flat belts (8) and pulleys (10a,10b,12a-12c). The flat belt is manufactured in optional length as cut meter pieces and consists of an elastomer material, and is reinforced by ties. The flat belt on at least one of its sides, which may be the lower or upper side, is provided with longitudinal ribs, and the pulleys are grooved or flat pulleys and serve as deflection and drive pulleys. In the case of a belt with ribs on both sides the ribs are geometrically different in their construction.</p> |
