Leaf spring arrangement

Patent metadata

Field	Value
Publication number	US-9370980-B2
Application number	US-201514613076-A
Country	US
Kind code	B2
Filing date	Feb 3, 2015
Priority date	Feb 5, 2014
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

A leaf spring arrangement for a motor vehicle axle includes a leaf spring which is made of a fiber composite and has ends, each end having a flat underside to provide a joining surface. Bonded flatly by an adhesive against the underside of each end of the leaf spring in an area of the joining surface is a mount for attachment onto a further axle component. The mount has an opening for receiving a metallic bearing or screw bolt.

First claim

What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and includes equivalents of the elements recited therein:

1. A leaf spring arrangement for a motor vehicle axle, comprising:
a leaf spring made of a fiber composite and having ends, each end having a flat underside to provide a joining surface;
mounts for attachment onto an axle component, said mounts being bonded by an adhesive flatly against the underside of the ends of the leaf spring in an area of the joining surface, each said mount having an opening for receiving a metallic bearing or screw bolt; and
a tie rod or pressure bar coupled to the mount to exert a force from the mount in a direction of the end of the leaf spring,
wherein the mount is configured to embrace, at least in part, an end face of the leaf spring,
wherein the mount includes a joining surface and a support shoulder, said support shoulder being configured to extend beyond the joining surface of the mount with respect to a vertical motor vehicle direction, said support shoulder resting against the end face of the leaf spring, and
wherein the mount is arranged below the joining surface and thereby also the opening is arranged below the joining surface as viewed in a motor vehicle Z direction.

2. The leaf spring arrangement of claim 1 , wherein the leaf spring is made of a fiberglass composite.

3. The leaf spring arrangement of claim 1 , wherein the leaf spring is made of several layers of fiber composite.

4. The leaf spring arrangement of claim 1 , wherein the opening of the mount extends in substantial orthogonal relation to the joining surface.

5. The leaf spring arrangement of claim 1 , wherein the mount is made of a metallic material.

6. The leaf spring arrangement of claim 1 , wherein the leaf spring is configured as a transverse leaf spring.

7. The leaf spring arrangement of claim 1 , wherein the support shoulder has a contact surface which is bonded with the end face of the leaf spring.

8. The leaf spring arrangement of claim 1 , wherein the support shoulder covers 10% to 80% of an overall area of the end face.

9. The leaf spring arrangement of claim 1 , wherein the support shoulder covers 20% to 60% of an overall area of the end face.

10. The leaf spring arrangement of claim 1 , wherein the support shoulder covers 25% to 50% of an overall area of the end face.

Assignees

• Benteler Automobiltechnik Gmbh

Inventors

• Drabon Rodscha
• Smatloch Christian
• Von Der Kall Jürgen

Classifications

• B60G2204/43

  Fittings, brackets or knuckles · CPC title

• B60G2206/72

  Steel · CPC title

• B60G2204/121

  Mounting of leaf springs · CPC title

• B60G11/10

  characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle · CPC title

• B60G2202/114

  transversally arranged · CPC title