Fastening device for fastening a structural part consisting of a carbon-fiber-reinforced plastic to a component, in particular a chassis component of a vehicle

Patent metadata

Field	Value
Publication number	US-10082170-B2
Application number	US-201514743275-A
Country	US
Kind code	B2
Filing date	Jun 18, 2015
Priority date	Dec 19, 2012
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

A fastening device is provided for fastening a structural part consisting of a carbon-fiber reinforced plastic, in particular a cell of a vehicle, to a component, in particular a chassis component of a vehicle. In order to provide a fastening device which ensures a secure fastening of structural parts consisting of a carbon fiber-reinforced plastic to other vehicle components, a first connecting element is mounted on the structural part, on which first connecting element a second connecting element can be mounted. The first connecting element is connected to the structural part by an adhesive layer and has a protruding bush which passes through a bore in the structural part and which projects with its free end beyond the structural part.

First claim

What is claimed is:

1. A fastening device for a carbon fiber-reinforced plastic structural part to be fastened to a vehicle chassis, consisting essentially of:
a first connecting element;
a second connecting element;
a first adhesive layer affixing the first connecting element to the carbon fiber-reinforced plastic structural part,
a second adhesive layer that directly adheres the vehicle chassis to the carbon fiber-reinforced structural part, wherein
the first connecting element includes a protruding bush that extends through a bore in the carbon fiber-reinforced plastic structural part with a free end extending beyond the carbon fiber-reinforced plastic structural part,
the second connecting element is fixed to the first connecting element, and
the first connecting element includes a thread and the second connecting element is a threaded fastener.

2. The fastening device according to claim 1 , wherein the carbon fiber-reinforced plastic structural part is a cell of a motor vehicle.

3. The fastening device according to claim 1 , wherein the carbon fiber-reinforced plastic structural part is a load-bearing vehicle body part.

4. The fastening device according to claim 1 , wherein the first connecting element includes an internal thread and the second connecting element is a setscrew.

5. The fastening device according to claim 1 , wherein the bush is arranged to bear against the vehicle chassis, and the structural part is positioned between the vehicle chassis component and the first connecting element.

6. A connection in a vehicle, consisting essentially of:
a carbon fiber-reinforced plastic structural part;
a vehicle chassis;
a first connecting element;
a second connecting element;
a first adhesive layer affixing the first connecting element to the carbon fiber-reinforced plastic structural part;
a second adhesive layer affixing the vehicle chassis to the carbon fiber-reinforced structural part, wherein
the first connecting element includes a protruding bush that extends through a bore in the carbon fiber-reinforced plastic structural part with a free end extending beyond the carbon fiber-reinforced plastic structural part,
the second connecting element is fixed to the first connecting element, and
the first connecting element includes a thread and the second connecting element is a threaded fastener.

7. The connection according to claim 6 , wherein the carbon fiber-reinforced plastic structural part is a cell of a motor vehicle.

8. The connection according to claim 6 , wherein the carbon fiber-reinforced plastic structural part is a load-bearing vehicle body part.

9. The connection according to claim 6 , wherein the first connecting element includes an internal thread and the second connecting element is a setscrew.

10. The connection according to claim 6 , wherein the bush is arranged to bear against the vehicle chassis, and the structural part is positioned between the vehicle chassis component and the first connecting element.

Assignees

• Roehrl Sabine
• Weiss Thomas
• Dirschmid Ferdinand
• Gruber Anton
• Kettenberger Johann
• Bayerische Motoren Werke Ag

Inventors

• Roehrl Sabine
• Weiss Thomas
• Dirschmid Ferdinand
• Gruber Anton
• Kettenberger Johann

Classifications

• B62D27/026 Primary

  Connections by glue bonding (in general F16B11/00; processes C09J5/00) · CPC title

• B62D27/065

  using screwthread (connection of crossbeam to A- pillars B62D25/147; mounting load bearing surfaces B62D21/09; securing mudguards B62D25/163; connections for synthetic parts B62D29/048) · CPC title

• B62D29/048

  Connections therefor, e.g. joints (B62D29/045 takes precedence) · CPC title

• F16B25/0015

  the material being a soft organic material, e.g. wood or plastic (F16B25/0031 takes precedence) · CPC title

• F16B5/02

  by means of fastening members using screw-thread ({F16B5/0004 takes precedence}; construction of screw-threaded connections F16B25/00 - F16B39/00) · CPC title