Decoupling bearing for a suspension strut, suspension strut having a decoupling bearing and vehicle having a suspension strut

Patent metadata

Field	Value
Publication number	US-11511584-B2
Application number	US-201916555263-A
Country	US
Kind code	B2
Filing date	Aug 29, 2019
Priority date	Aug 29, 2018
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A decoupling bearing for a suspension strut or a pneumatic suspension strut may include a suspension strut cup and a connecting element that can be connected to a vehicle body. A damping element may be arranged between the suspension strut cup and the connecting element. The suspension strut cup may be connected to the connecting element by the damping element. Further, the damping element may be adhesively bonded to the connecting element and the suspension strut cup in a force-transmitting manner, and/or the damping element may be adhesively bonded to the connecting element and an intermediate element in a force-transmitting manner. The intermediate element may be connected to the suspension strut cup.

First claim

What is claimed is:

1. A decoupling bearing for a suspension strut, the decoupling bearing comprising:
a suspension strut cup extending along a longitudinal axis, with the longitudinal axis being perpendicular to and passing through a cup bottom of the suspension strut cup;
a connecting element that is connectable to a vehicle body;
a damping element disposed between and connecting the suspension strut cup and the connecting element; and
an intermediate element that is connected to the suspension strut cup,
wherein the damping element is adhesively bonded to the connecting element and to the intermediate element that is connected to the suspension strut cup, with the intermediate element being positioned between the damping element and the suspension strut cup,
wherein both the damping element and the intermediate element extend farther in radial planes that are perpendicular to the longitudinal axis than the damping element and the intermediate element extend longitudinally.

2. The decoupling bearing of claim 1 wherein the damping element interacts with the connecting element and the intermediate element to transmit a tensile force and/or a compressive force.

3. The decoupling bearing of claim 1 wherein the damping element has a contact surface by way of which the damping element is adhesively bonded over its entire surface, including at the longitudinal axis.

4. The decoupling bearing of claim 1 wherein the damping element has a contact surface by way of which the damping element is adhesively bonded at least partially.

5. The decoupling bearing of claim 4 wherein at least one of the suspension strut cup, the connecting element, or the intermediate element has a planar contact surface that is adhesively bondable to the contact surface of the damping element at the longitudinal axis.

6. The decoupling bearing of claim 1 wherein the damping element is comprised of polyurethane.

7. The decoupling bearing of claim 1 wherein the damping element is comprised of cellular polyurethane.

8. The decoupling bearing of claim 1 wherein the damping element is disc-shaped, solid, and central cavity-free.

9. The decoupling bearing of claim 1 wherein an edge of the damping element where a radially-outward facing surface and a longitudinal end face of the damping element come together is rounded-off.

10. The decoupling bearing of claim 1 wherein the intermediate element is releasably connected to the suspension strut cup.

11. A suspension strut with a decoupling bearing that comprises:
a suspension strut cup extending along a longitudinal axis, with the longitudinal axis being perpendicular to and passing through a center of a cup bottom of the suspension strut cup;
a connecting element that is connectable to a vehicle body; and
a damping element disposed between and connecting the suspension strut cup and the connecting element, with the damping element being a solid, integral, one-piece construction, wherein the damping element is adhesively bonded to the connecting element and to at least one of the following in a force-transmitting manner:
the suspension strut cup or
an intermediate element that is connected to the suspension strut cup,

wherein at the longitudinal axis a planar surface of the damping element is in direct contact with a planar surface of the at least one of the suspension strut cup or the intermediate element.

12. The suspension strut of claim 11 configured as a pneumatic suspension strut.

13. The suspension strut of claim 11 wherein the damping element is a solid, central cavity-free, one-piece construction.

14. The suspension strut of claim 11 wherein an entirety of a longitudinal end face of the damping element is in contact with the suspension strut cup or the intermediate element.

15. The suspension strut of claim 11 comprising the intermediate element, wherein the intermediate element extends farther radially from the longitudinal axis than does any portion of the damping element.

16. A decoupling bearing for a suspension strut, the decoupling bearing comprising:
a suspension strut cup extending along a longitudinal axis, with the longitudinal axis being perpendicular to and passing through a cup bottom of the suspension strut cup;
a connecting element that is connectable to a vehicle body; and
a damping element disposed between and connecting the suspension strut cup and the connecting element, wherein the damping element is adhesively bonded to the connecting element and to at least one of the following in a force-transmitting manner:
the cup bottom of the suspension strut cup or
an intermediate element that is connected to the cup bottom, with the intermediate element being positioned between the damping element and the cup bottom,

wherein either the damping element or the intermediate element is in direct contact with a majority of a surface area of a longitudinal end face of the cup bottom.

17. The decoupling bearing of claim 16 wherein the damping element is a solid, central cavity-free, one-piece construction that is in direct contact with the cup bottom or the intermediate element at the longitudinal axis.

18. The decoupling bearing of claim 16 wherein an entirety of a longitudinal end face of the damping element is in contact with the suspension strut cup or the intermediate element.

19. The decoupling bearing of claim 16 comprising the intermediate element, wherein the intermediate element extends farther radially from the longitudinal axis than does any portion of the damping element.

20. The decoupling bearing of claim 16 comprising the intermediate element, wherein the damping element has a greater longitudinal extent than does the intermediate element, wherein both the connecting element and the intermediate element extend farther radially from the longitudinal axis than does the damping element.

Assignees

• Schmidt Klaus
• Hennen Holger
• Goetz Ole
• Thyssen Krupp Bilstein Gmbh
• Thyssenkrupp Ag

Inventors

• Schmidt Klaus
• Hennen Holger
• Götz Ole

Classifications

• B60G2204/1262

  on a damper · CPC title

• B60G15/07

  the damper being connected to the stub axle and the spring being arranged around the damper {(B60G15/068 takes precedence)} · CPC title

• B60G2202/152

  Pneumatic spring · CPC title

• B60G2202/314

  The spring being a pneumatic spring · CPC title

• B60G2202/20

  Type of damper · CPC title