Roller guide for a car of an elevator system

A car of an elevator system comprising at least one roller guide, wherein the at least one roller guide comprises:

• a roller carrier that is attachable to the car, the roller carrier including hydraulic cylinders provided with hydraulic fluid, each of the hydraulic cylinders including a corresponding piston movably disposed therein responsive to changes in pressure of the hydraulic fluid;
• rollers that are disposed on the roller carrier, each of the rollers having a running surface, wherein each running surface of the rollers is configured to roll along a rolling surface of the guide rail, wherein each of the rollers is mounted to a corresponding piston so as to be individually movable movable in a perpendicular direction relative to the rolling surface of the guide rail responsive to movement of the corresponding piston;
• and
• wherein the hydraulic cylinders are hydraulically interconnected by way of the hydraulic fluid such that movement of one of the rollers in the perpendicular direction causes a directionally-opposite movement of at least a second of the rollers.

An elevator system with at least one car and at least one roller guide, wherein the at least one roller guide comprises:

• a roller carrier that is attachable to the at least one car, the roller carrier including hydraulic cylinders provided with hydraulic fluid, each of the hydraulic cylinders including a corresponding piston movably disposed therein responsive to changes in pressure of the hydraulic fluid;
• rollers that are disposed on the roller carrier, each of the roller having a running surface, wherein each running surface of the rollers is configured to roll along a rolling surface of the guide rail, wherein each roller is mounted to a corresponding piston so as to be individually movable in a perpendicular direction relative to the rolling surface of the guide rail responsive to movement of the corresponding piston;
• and
• wherein the hydraulic cylinders are hydraulically interconnected by way of the hydraulic fluid such that movement of one of the rollers in the perpendicular direction causes a directionally-opposite movement of at least a second of the rollers.