| 摘要 |
The invention relates to a lift installation (1) having a lift car (5) which can be moved along a guide rail (3). The lift installation here comprises at least a first pair (29) of rollers and a second pair (31) of rollers. The guide rail (3) runs between the two rollers (45, 46) of the first pair (29) of rollers and between the two rollers (47, 48) of the second pair (31) of rollers. The lift installation (1) also has an apparatus (19) for subjecting the lift car (5) to a retaining force (21), wherein there is a horizontal offset between the point at which the retaining force takes effect and the centre of gravity of the lift car, and therefore the lift car is subjected to a first torque. In addition, the lift car has at least a first compensating device (63), so that, when the lift car (5) is at rest, the guide rail (3) is subjected to sufficient force to give rise to a second torque, which largely compensates for the first torque, so that a first roller (45) of the first pair (29) of rollers is largely relieved of loading when the lift car (5) is at rest. |
