Multi-point link for an undercarriage of a vehicle

Patent metadata

Field	Value
Publication number	US-11878563-B2
Application number	US-202017609039-A
Country	US
Kind code	B2
Filing date	Apr 8, 2020
Priority date	May 6, 2019
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

A multipoint link for an undercarriage of a vehicle, having a core element formed from a foamed material and at least one roving of bundled continuous filaments wound around the core element, the at least one roving winding around the core element in at least one layer forming an outer layer of the multipoint link. The recesses serving to guide the at least one roving to be laid by winding are incorporated in the surface of the core element.

First claim

The invention claimed is:

1. A multipoint link for an undercarriage of a vehicle, comprising:
a core element formed from a foamed material;
at least one roving of bundled continuous filaments wound around the core element,
wherein the at least one roving winding around the core element in at least one layer forms an outer layer of the multipoint link; and
recesses configured to guide the at least one roving to be laid by winding are incorporated in a surface of the core element, wherein walls that laterally delimit the recesses have undercuts,
wherein the recesses are arranged independent from free geodesic paths on the surface of the core element.

2. The multipoint link according to claim 1 , wherein the recesses are formed during production of the core element.

3. The multipoint link according to claim 1 , wherein the recesses are formed by a cutting surface treatment after production of the core element.

4. The multipoint link according to claim 1 , wherein the recesses have at least one of an arcuate cross section and a polygonal cross section.

5. The multipoint link according to claim 1 , wherein the recesses are arranged on the surface of the core element to follow a framework-like structure.

6. The multipoint link according to claim 1 , wherein the recesses are arranged to follow main load paths of the multipoint link.

7. The multipoint link according to claim 1 , wherein the recesses have straight and/or curved extending portions.

8. The multipoint link according to claim 1 , wherein a plurality of recesses are arranged parallel adjacent to one another.

9. The multipoint link according to claim 1 , wherein the recesses are arranged to intersect on the surface of the core element.

10. The multipoint link according to claim 1 , further comprising:
structure elements formed at the core element jutting out in portions over the surface of the core element and having at least one recess extending substantially perpendicular to the surface of the core element.

11. The multipoint link according to claim 1 , wherein the core element is constructed as a hollow body which comprises at least two shell elements.

12. A multipoint link for an undercarriage of a vehicle, comprising:
a core element formed from a foamed material;
at least one roving of bundled continuous filaments wound around the core element,
wherein the at least one roving winding around the core element in at least one layer forms an outer layer of the multipoint link; and
recesses configured to guide the at least one roving to be laid by winding are incorporated in a surface of the core element, wherein walls that laterally delimit the recesses have undercuts,
wherein the recesses have at least one of an arcuate cross section and a polygonal cross section,
wherein a combination of different cross-sectional shapes within an extension of a respective recess are provided in one or more transition points or highly curved transition zones in that the recess has a polygonal cross section in the latter, while the recess has a substantially arcuate cross section before and after the one or more transition points or highly curved transition zones.

13. The multipoint link according to claim 9
A multipoint link for an undercarriage of a vehicle, comprising:
a core element formed from a foamed material;
at least one roving of bundled continuous filaments wound around the core element,
wherein the at least one roving winding around the core element in at least one layer forms an outer layer of the multipoint link; and
recesses configured to guide the at least one roving to be laid by winding are incorporated in a surface of the core element, wherein walls that laterally delimit the recesses have undercuts,
wherein the recesses are arranged to intersect on the surface of the core element, and
wherein the intersecting recesses have different depths.

14. A method for producing a multipoint link, comprising:
producing a core element from a foamed material;
incorporating recesses in a surface of the core element, wherein the recesses are incorporated during or after production of the core element, wherein walls laterally delimit the recesses have undercuts; and
winding, around the core element, at least one roving of bundled continuous filaments which is laid in the recesses,
wherein the recesses are arranged to intersect on the surface of the core element, and
wherein the intersecting recesses have different depths.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Müller Ingolf
• Heimann Jens
• Stieglitz Andre
• Sohl Carsten
• Hörtdörfer Valentin

Classifications

• B60G7/001 Primary

  Suspension arms, e.g. constructional features (B60G7/006 takes precedence) · CPC title

• B60G2206/012

  Hollow or tubular elements · CPC title

• B60G2206/12

  with two attachment points on the sprung part of the vehicle · CPC title

• B60G2206/121

  the arm having an H or X-shape · CPC title

• B60G2206/7105

  Porous materials, ceramics, e.g. as filling material · CPC title