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US 9,789,911 B2Granted
Roof frame and method for producing a roof frame
AssigneeDaimler AG
InventorsMichael Bendiks, Stefan Hummel, Manfred Kempf, Thomas Rudlaff, Lutz Storsberg, Juergen Thalemann
Life of this patent
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Abstract
A roof frame for a motor vehicle is disclosed. At least one partial element of the roof frame is massive-formed, preferably forged, from a light metal blank.
Claims5
A component part for a motor vehicle, comprising:
- a roof frame, wherein an entirety of the roof frame is produced from a light metal blank in one piece as a forged part;
- wherein a cross-section of the roof frame is discontinuous such that the roof frame has a first cross-section and a second cross-section, wherein the first cross-section is larger than the second cross-section;
- wherein the first cross-section is disposed at a first region of the roof frame, wherein the second cross-section is disposed at a second region of the roof frame, and wherein the first region has a higher mechanical stress than the second region;
- wherein the first larger cross-section is formed with at least one stiffening inlay of fibers in a bundled fiber orientation and wherein the second smaller cross-section is not formed with the at least one stiffening inlay of fibers in the bundled fiber orientation.
1 more element
A method of producing a roof frame, comprising the step of:
- producing an entirety of the roof frame by massive-forming, wherein the entirety of the roof frame is forged from a light metal blank;
- wherein a cross-section of the roof frame is discontinuous such that the roof frame has a first cross-section and a second cross-section, wherein the first cross-section is larger than the second cross-section;
- wherein the first cross-section is disposed at a first region of the roof frame, wherein the second cross-section is disposed at a second region of the roof frame, and wherein the first region has a higher mechanical stress than the second region;
- wherein the first larger cross-section is formed with at least one stiffening inlay of fibers in a bundled fiber orientation and wherein the second smaller cross-section is not formed with the at least one stiffening inlay of fibers in the bundled fiber orientation.
1 more element
Dependencies are inferred from the claim text.