Apparatus and method for forming compound shaped surfaces

Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material

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428 72, 428 76, 428120, 428192, 156202, 156292, 1563084, 5279311, 5278712, 29428, 29457, 29448, 29509, 298972, B32B 100, B23P 1102

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057502366

ABSTRACT:
Apparatus and method for forming compound shaped surfaces. A skin conforming to the visual shape of the surface being formed is prepared from a blank sheet of material that is cut to size and includes any desired stamped-out detailing or notched edges or lines. Disposable strips of material are used to form hems in the skin. A preforming die is used to create tight bends or outer contours in the skin. A liner of the desired size and detailing is formed along with two-shaped side flanges. A plurality of ribs or silhouettes are provided and placed into the skin to form and maintain the desired final shape. The pre-formed liner is then assembled to the skin, the ribs being disposed between the liner and the skin.

REFERENCES:
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patent: D346571 (1994-05-01), Lewellen et al.
patent: D351816 (1994-10-01), Lewellen et al.
patent: D351817 (1994-10-01), Lewellen et al.
patent: 3388522 (1968-06-01), Lowes
patent: 3462330 (1969-08-01), Greig et al.
patent: 5239753 (1993-08-01), Kalis, Jr. et al.
patent: 5267773 (1993-12-01), Kalis, Jr. et al.
patent: 5487930 (1996-01-01), Lockshaw et al.

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