Undercarriage liner made of plastic for a vehicle
An undercarriage liner made of plastic for a vehicle is detachably attached to the adjacent vehicle chassis. In order for an undercarriage liner to have a significantly lower weight per unit of area, and thus a definitely reduced total weight, while retaining the same flexural strength and impact strength, the undercarriage liner, in the form of a sandwich structure, has a lightweight core layer of polypropylene foam or unconsolidated glass-mat-reinforced thermoplastic. The core layer is provided with a thin cover layer of polypropylene fiber-reinforced polypropylene on both sides. The two rigid and high-impact cover layers are each thermally bonded to the core layer.
1 . An undercarriage liner made of plastic for a vehicle, the liner being attachable to an adjacent vehicle body and having a sandwich structure comprising:
a lightweight core layer made of polypropylene foam, and
a thin, rigid, high-impact cover layer made of polypropylene fiber-reinforced polypropylene on each side of the core layer,
wherein each of the cover layers is thermally bonded to the core layer.
2 . The undercarriage liner as claimed in claim 1 , wherein each of the two cover layers has a thickness between 0.15 millimeter and 0.5 millimeter, and wherein the undercarriage liner has a total thickness of approximately 3.5 millimeters to 5 millimeters.
3 . The undercarriage liner as claimed in claim 1 , wherein the undercarriage liner has a weight per unit of area of approximately 800 grams to 1400 grams per square meter.
4 . The undercarriage liner as claimed in claim 1 , wherein the undercarriage liner is compacted to a thickness of approximately 1.0 millimeter to 1.5 millimeter at an edge of a component and at points of application of force.
5 . The undercarriage liner as claimed in claim 2 , wherein the undercarriage liner is compacted to a thickness of approximately 1.0 millimeter to 1.5 millimeter at an edge of a component and at points of application of force.
6 . The undercarriage liner as claimed in claim 3 , wherein the undercarriage liner is compacted to a thickness of approximately 1.0 millimeter to 1.5 millimeter at an edge of a component and at points of application of force.
7 . The undercarriage liner as claimed in claim 1 , wherein the undercarriage liner is cut off or folded toward a vehicle chassis in the area of an edge of the component and at fastening points with respect to the adjacent contour of the undercarriage liner.
8 . The undercarriage liner as claimed in claim 2 , wherein the undercarriage liner is cut off or folded toward a vehicle chassis in the area of an edge of the component and at fastening points with respect to the adjacent contour of the undercarriage liner.
9 . The undercarriage liner as claimed in claim 3 , wherein the undercarriage liner is cut off or folded toward a vehicle chassis in the area of an edge of the component and at fastening points with respect to the adjacent contour of the undercarriage liner.
10 . An undercarriage liner made of plastic for a vehicle, attachable to an adjacent vehicle body, and having a sandwich structure comprising:
a lightweight core layer made of a lightweight, unconsolidated, glass-mat-reinforced thermoplastic with a high air content, and
a thin, rigid, high-impact cover layer made of polypropylene fiber-reinforced polypropylene on each side of the core layer,
wherein each of the two cover layers is thermally bonded to the core layer.
11 . The undercarriage liner as claimed in claim 10 , wherein each of the cover layers has a thickness of approximately 0.15 millimeter.
12 . The undercarriage liner as claimed in claim 10 , wherein the undercarriage liner has a weight per unit area of approximately 1100 grams to 1400 grams per square meter.
13 . The undercarriage liner as claimed in claim 10 , wherein the undercarriage liner is compacted to a thickness of approximately 1.0 millimeter to 1.5 millimeter at an edge of a component and at points of application of force.
14 . The undercarriage liner as claimed in claim 11 , wherein the undercarriage liner is compacted to a thickness of approximately 1.0 millimeter to 1.5 millimeter at an edge of a component and at points of application of force.
15 . The undercarriage liner as claimed in claim 12 , wherein the undercarriage liner is compacted to a thickness of approximately 1.0 millimeter to 1.5 millimeter at an edge of a component and at points of application of force.
16 . The undercarriage liner as claimed in claim 10 , wherein the undercarriage liner is cut off or folded toward a vehicle chassis in the area of an edge of the component and at fastening points with respect to the adjacent contour of the undercarriage liner.
17 . The undercarriage liner as claimed in claim 11 , wherein the undercarriage liner is cut off or folded toward a vehicle chassis in the area of an edge of the component and at fastening points with respect to the adjacent contour of the undercarriage liner.
18 . The undercarriage liner as claimed in claim 12 , wherein the undercarriage liner is cut off or folded toward a vehicle chassis in the area of an edge of the component and at fastening points with respect to the adjacent contour of the undercarriage liner.
19 . The undercarriage liner as claimed in claim 13 , wherein the undercarriage liner is cut off or folded toward a vehicle chassis in the area of an edge of the component and at fastening points with respect to the adjacent contour of the undercarriage liner.
20 . The undercarriage liner as claimed in claim 14 , wherein the undercarriage liner is cut off or folded toward a vehicle chassis in the area of an edge of the component and at fastening points with respect to the adjacent contour of the undercarriage liner.