Connection arrangement between a fiber-plastic composite profiled part and a vehicle body frame part and method for producing same

Patent metadata

Field	Value
Publication number	US-10144458-B2
Application number	US-201615299503-A
Country	US
Kind code	B2
Filing date	Oct 21, 2016
Priority date	Jul 29, 2014
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

A connection arrangement is provided between a fiber-plastic composite profiled part and a vehicle body frame part. An intermediate piece is connected to the vehicle body frame part. The intermediate piece has a connection portion which is plug-connected and adhesively bonded to an end of the fiber-plastic composite profiled part. The end of the fiber-plastic composite profiled part is plugged onto the connection portion of the intermediate piece and is adhesively bonded on the inner surface to the connection portion.

First claim

What is claimed is:

1. A connection arrangement between a fiber-plastic composite profiled part and a vehicle body frame part, comprising:
an intermediate piece connected to the vehicle body frame part, wherein
the intermediate piece has a connection portion which is plug-connected and adhesively bonded to an end of the fiber-plastic composite profiled part, and
the end of the fiber-plastic composite profiled part is plugged onto the connection portion of the intermediate piece and is adhesively bonded on an inner surface to the connection portion, wherein
the plugged-on fiber-plastic composite profiled part is tightly screwed with at least one flow-hole-forming screw to the connection portion of the intermediate piece.

2. The connection arrangement according to claim 1 , wherein the fiber-plastic composite profiled part is configured as a tubular hollow profile.

3. The connection arrangement according to claim 2 , wherein an outer cross section of the connection portion does not fully correspond with an inner cross section of the hollow profile, as a result of which, outside of surface portions lying flush against each other in an overlapping region, free-running zones are provided which permit different thermal expansions.

4. The connection arrangement according to claim 1 , wherein the connection portion of the intermediate piece has at least one plug-in slope.

5. The connection arrangement according to claim 1 , wherein the vehicle body frame part is a roof frame and the fiber-plastic composite profiled part is a roof bow of a motor vehicle.

6. The connection arrangement according to claim 5 , wherein the intermediate piece is formed integrally with the roof frame.

7. A method for producing a connection arrangement between a fiber-plastic composite profiled part and a vehicle body frame part, the vehicle body frame part having an intermediate piece connected thereto, wherein the method comprises the acts of:
applying an adhesive to surface portions on an outer circumferential surface of a connection portion of the intermediate piece and/or on an inner circumferential surface at an end of the fiber-plastic composite profiled part;
plug-connecting the fiber-plastic composite profiled part to the intermediate piece; and
carrying out a heat treatment in order to cure the adhesive, wherein the surface portions that lie flush one against another in an overlapping region of the fiber-plastic composite profiled part and the connection portion of the intermediate piece and are provided with the adhesive are pressed against one another due to a greater thermal expansion of the intermediate piece, wherein
the act of carrying out the heat treatment in order to cure the adhesive takes place in a drying cycle following cathodic dip coating.

8. The method according to claim 7 , further comprising the act of:
tightly screwing the fiber-plastic composite profiled part to the intermediate piece prior to the heat treatment via at least one flow-hole-forming screw.

9. The method according to claim 8 , wherein the act of tightly screwing via the at least one flow-hole-forming screw is carried out without pre-punching of the intermediate piece.

10. The method according to claim 9 , wherein the act of tightly screwing via the at least one flow-hole-forming screw is carried out without pre-punching of the fiber-plastic composite profiled part.

11. The method according to claim 8 , wherein the act of tightly screwing via the at least one flow-hole-forming screw is carried out without pre-punching of the intermediate piece.

12. The method according to claim 11 , wherein the act of tightly screwing via the at least one flow-hole-forming screw is carried out without pre-punching of the fiber-plastic composite profiled part.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Wilhelm Maximilian
• Forster Andreas
• Wagner Julia

Classifications

• 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

• B62D29/005 Primary

  preformed metal and synthetic material elements being joined together, e.g. by adhesives · CPC title

• B62D27/026

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

• B62D65/024

  Positioning of sub-units or components with respect to body shell or other sub-units or components · CPC title

• B62D25/06

  Fixed roofs (non-fixed roofs or like shelters B60J7/00; roof liners B60R13/02; insulating elements B60R13/08) · CPC title