Method to drive a spring bearer with electric spring power adjustment in order to place load at required distance from support using actuator to exert force against bearing strength of spring

摘要

The spring bearer has at least one spring (17,35) whose tensioned force can be adjusted using an electrical actuator in order to place the load at a defined distance from the supporting element. The bearing force produced by the tensioning of the spring is greater than needed for the load. The actuator exerts force against the bearing strength of the spring in order to set the defined distance.