Vehicle seat comprising an additional volume for levelling and stabilization

US10427566B2 · kind B2 · utility

Assignee

• GRAMMER AG · DE

Inventors

• Konstantin Lorey · Schmidgaden, DE
• Hubert Wittmann · Amberg, DE
• Konstantin Krivenkov · Amberg, DE

Key dates

• Filing date: Oct 18, 2017
• Grant date: Oct 1, 2019
• Expiry date: Nov 20, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60N2/522
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A vehicle seat comprising a device for levelling the vehicle seat is provided. The vehicle seat including an upper seat element, which can be moved relative to a lower seat element by a first air spring and on which a mass can be arranged The lower and the upper seat element are arranged at a predetermined distance from one another, and the first air spring is fluidically connected to an additional volume of an additional volume module by a first fluid connection. The internal pressure of the first air spring is controllable by the additional volume module. The device comprises a limited auxiliary volume, which is fluidically coupled to the additional volume by means of a fluid conveying unit and a second fluid connection, it being possible, when the distance changes between said seat elements due to a shift in weight of the mass on the upper seat element, to change the internal pressure of the additional volume and, indirectly, of the first air spring by a fluid being conveyed between the auxiliary volume and the additional volume by means of the fluid conveying unit in order to compensate for the change in distance.