Spring assembly for a chassis, vehicle chassis comprising a spring assembly, method for producing a spring assembly for a vehicle chassis and use of a spring assembly
AssigneesThyssenkrupp Federn Und Stabilisatoren GmbH, thyssenkrupp AG
InventorsKarsten Westerhoff, Jan-Yves Schrage, Marcel Gross
Life of this patent
Estimating the term…
Abstract
A spring assembly for a vehicle chassis may include a spring that features a coating, a spring support, and an intermediate layer. The intermediate layer can be arranged between the spring and the spring support. The intermediate layer may be at least materially connected to the spring, in particular to the coating on a side facing the spring. The intermediate layer lies entirely or partially against the spring support on a side facing away from the spring and is connected to the spring support by a connection other than a material connection.
Claims18
A spring assembly for a vehicle chassis, comprising:
- a spring that has a coating;
- a spring support that has an adhesive-repellent supporting region for supporting the spring;
- and
- an intermediate layer arranged between the spring and the spring support, wherein the intermediate layer includes an adhesive;
- wherein the intermediate layer is at least materially connected to the coating on a side facing the spring;
- wherein the intermediate layer lies entirely or partially against the spring support on a side facing away from the spring and is connected and anchored to the adhesive-repellent supporting region of the spring support by a connection other than a material connection;
- wherein the connection is a positive connection configured with positive elements and negative receptacles that receive the positive elements;
- wherein either:
- projections with undercuts of the intermediate layer are received as the positive elements in undercut cavities of the spring support that form the negative receptacles, or
- projections with undercuts of the spring support form the positive elements, with the positive elements being received in the negative receptacles, wherein undercut cavities in the intermediate layer form the negative receptacles.
A method for producing a spring assembly for a vehicle chassis, the method comprising:
- a) providing a spring that has a coating;
- b) providing a spring support that has an adhesive-repellent supporting region for supporting the spring;
- c) providing a filler;
- d) applying the filler to the spring and/or to the adhesive-repellent supporting region of the spring support;
- e) producing an intermediate layer between the spring and the spring support by bringing into contact
- i) the spring with the adhesive-repellent supporting region of the spring support, to which supporting region the filler has been applied,
- ii) the spring, to which the filler has been applied, with the adhesive-repellent supporting region of the spring support, or
- iii) the spring, to which the filler has been applied, with the adhesive-repellent supporting region of the spring support, to which supporting region the filler has been applied;
- and
- f) forming a material, adhesive connection between the intermediate layer produced in step (e) and the spring, wherein an anchoring connection other than a material connection is formed between the adhesive-repellent supporting region of the spring support and the intermediate layer produced in step (e), wherein the anchoring connection is a positive connection configured with projections anchored in undercut cavities.
Dependencies are inferred from the claim text.