SEDILE MOLLEGGIATO PER AUTOVEICOLO CON REGOLAZIONE SIA IN ALTEZZA CHE SECONDO IL PESO SOPPORTATO

• Main Authors: HERMANN MEILLER, KARL JOHANN GRASSL
• Format: Patent
• Language: Italian
• Published: 05.11.1981
• Subjects: PERFORMING OPERATIONS; SEATS SPECIALLY ADAPTED FOR VEHICLES; TRANSPORTING; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR; VEHICLES IN GENERAL

A sprung vehicle seat which adjusts to a preset height, even when accommodating people of different weights, and which also permits adjustment of the preset height, is supported by a gas spring. An actuator which is linearly movable when there is a change in the seat height can cooperate with a switching mechanism, which includes a valve spaced apart from a switch, to control the volume of air in the gas spring. A holder carrying either the switching mechanism or the actuator is pivotably mounted on a slider which is linearly movable unless it is locked into place. When the holder is in a first angular position, the actuator and the switching mechanism are separated to avoid unnecessary actuation of the gas spring during bouncing movements, and when it is in a second angular position the actuator and the switching mechanism are moved toward each other so that they can cooperate to adjust the seat to the preset height. A manually operable three-stage actuating mechanism is operative during a first actuating stage to pivot the holder into its second position, during a second stage to unlock the slider, and during a third stage to shift the slider from one position to another so as to change the preset height. The actuating mechanism has only a single lever, which is movable in two different modes (such as rotation about its axis and rotation about a line perpendicular to the axis) to accomplish the three actuating stages.