Assembly including a compression-molded composite component having a sandwich structure and a unitarily connected second component

1. A unitary structural assembly comprising:

a first component having lower and side surfaces which define a plateau-receiving aperture having a size, a shape and a depth; and

a compression-molded, composite second component having a sandwich structure, the second component including a first outer layer, a second outer layer, and a core positioned between the outer layers and having a plurality of cavities wherein the outer layers are bonded to the core by a press molding, wherein a portion of the second component including the first layer and the core defines a raised plateau having upper and side surfaces, the plateau having a size and shape corresponding to the size and shape of the plateau-receiving aperture, wherein a height of the plateau corresponds to the depth of the plateau-receiving aperture and wherein the plateau is inserted into the plateau-receiving aperture so that corresponding surfaces of the surfaces of plateau and the plateau-receiving aperture are in abutting engagement to unitarily connect the components and form the assembly.

2. The assembly as claimed in claim 1 , wherein the first component includes at least one connector-receiving aperture in communication with the plateau-receiving aperture and wherein the assembly further comprises at least one connector positioned on or above the raised plateau, each connector being received and retained within its respective connector-receiving aperture.

3. The assembly as claimed in claim 2 , wherein the at least one connector includes a plurality of connectors secured to the upper surface of the plateau and wherein the first component includes a plurality of holes corresponding in number and relative position to the plurality of connectors.

4. The assembly as claimed in claim 3 , wherein the connectors are plastic retaining connectors bonded to the upper surface of the plateau.

5. The assembly as claimed in claim 4 , wherein each of the retaining connectors comprises a resilient retaining connector and each of the holes comprises a connector-receiving socket.

6. The assembly as claimed in claim 4 , wherein each of the retaining connectors comprises an externally threaded fastener and wherein each of the holes is internally threaded.

7. The assembly as claimed in claim 2 , wherein the at least one connector is defined by a portion of the core and the first layer.

8. The assembly as claimed in claim 2 , wherein the at least one connector comprises a fastener positioned above the raised plateau and extending completely through the connector-receiving aperture and above an upper surface of the first component to facilitate attachment of an adjacent structure to the assembly.

9. The assembly as claimed in claim 8 , wherein the fastener is a threaded fastener.

10. The assembly as claimed in claim 9 , wherein the fastener is an externally threaded fastener.

11. The assembly as claimed in claim 1 , wherein the core is a cellular core.

12. The assembly as claimed in claim 1 , wherein the core is a thermoplastic core.

13. The assembly as claimed in claim 1 , wherein the core is a honeycomb core.

14. The assembly as claimed in claim 13 , wherein the honeycomb core is a thermoplastic honeycomb core.

15. The assembly as claimed in claim 1 , wherein the outer layers are fiber-reinforced thermoplastic layers.

16. The assembly as claimed in claim 1 , wherein the first outer layer is a load-bearing layer.

17. A vehicle interior structural assembly comprising:

a first component having lower and side surfaces which define a plateau-receiving aperture having a size, a shape and a depth; and

a compression-molded, composite second component having a sandwich structure, the second component including a first outer layer, a second outer layer, and a core positioned between the outer layers and having a plurality of cavities wherein the outer layers are bonded to the core by a press molding, wherein a portion of the second component including the first layer and the core defines a raised plateau having upper and side surfaces, the plateau having a size and shape corresponding to the size and shape of the plateau-receiving aperture and wherein a height of the plateau corresponds to the depth of the plateau-receiving aperture and wherein the plateau is inserted into the plateau-receiving aperture so that corresponding surfaces of the plateau and the plateau-receiving aperture are in abutting engagement to unitarily connect the components and form the assembly.

18. A vehicle load floor assembly comprising:

a first component having lower and side surfaces which defines a plateau-receiving aperture having a size, a shape and a depth; and

a compression-molded, composite second component having a sandwich structure, the second component including a first outer layer, a second outer layer, and a core positioned between the outer layers and having a plurality of cavities wherein the outer layers are bonded to the core by a press molding, wherein a portion of the second component including the first layer and the core defines a raised plateau having upper and side surfaces, the plateau having a size and shape corresponding to the size and shape of the plateau-receiving aperture and wherein height of the plateau corresponds to the depth of the plateau-receiving aperture and wherein the plateau is inserted into the plateau-receiving aperture so that corresponding surfaces of the plateau and the plateau-receiving aperture are in abutting engagement to unitarily connect the components and form the assembly.