US 12,233,678 B2
Device and method for adjusting a base of a spring element for a vehicle
Dieter Bulling, Wedemark (DE)
Assigned to Vibracoustic SE, Darmstadt (DE)
Appl. No. 17/630,968
Filed by Vibracoustic SE, Darmstadt (DE)
PCT Filed Jul. 30, 2020, PCT No. PCT/EP2020/071562
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/019040, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 10 2019 120 693.6 (DE), filed on Jul. 31, 2019; and application No. 10 2019 120 845.9 (DE), filed on Aug. 1, 2019.
Prior Publication US 2022/0266648 A1, Aug. 25, 2022
Int. Cl. B60G 17/015 (2006.01); B60G 17/016 (2006.01); B60G 17/02 (2006.01); B60G 17/027 (2006.01); B60G 17/04 (2006.01); B60G 17/048 (2006.01); B60G 17/052 (2006.01)
CPC B60G 17/021 (2013.01) [B60G 17/0155 (2013.01); B60G 17/016 (2013.01); B60G 17/0272 (2013.01); B60G 17/04 (2013.01); B60G 17/0485 (2013.01); B60G 17/0521 (2013.01); B60G 17/0525 (2013.01); B60G 2400/942 (2013.01); B60G 2400/95 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A device for adjusting a foot point of a spring element for a vehicle, the device comprising:
a first wall element configured for connection to a vehicle,
a second wall element spaced from the first wall element and configured for connection to the spring element, and
a chamber disposed between the first wall element and the second wall element and configured for changing the distance between the first wall element and the second wall element by changing a volume of the chamber,
wherein the chamber comprises an incompressible fluid and the first and/or second wall element comprises a passage opening for the incompressible fluid to the chamber, the passage opening being fluidly communicably connectable to an input/output device for the incompressible fluid for changing the volume of the chamber;
wherein the chamber has a chamber wall with at least one third wall element extending from the first wall element to the second wall element, the mass of the third wall element being constant when the volume of the chamber is changed;
wherein the device has an axial guide element arranged inside the chamber, the axial guide element including a centering element and a guide element;
wherein the guide element is configured to guide the centering element in the axial direction of the spring element, the centering element is connected to the guide element in a sliding manner;
wherein the centering element is connected to the first wall element or the second wall element and the guide element is connected to the respective other wall element;
wherein the third wall element extends around the axial guide; and
wherein the device has a separate element having a receiving geometry for the spring element, an additional receiving geometry for the second wall element and a part of the third wall element and an outer guide for the third wall element, which extends over the spring element.