IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0524335
(1983-08-18)
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발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
0 |
초록
▼
A plurality of lateral beams (28) are spaced along a center reference line. This line is preferably a mean contour between the curvatures at the lateral edges of panel (6). The longitudinal axes of beams (28) are oriented at a constant angle, preferably 90°, to the line. The ends of beams (28) are e
A plurality of lateral beams (28) are spaced along a center reference line. This line is preferably a mean contour between the curvatures at the lateral edges of panel (6). The longitudinal axes of beams (28) are oriented at a constant angle, preferably 90°, to the line. The ends of beams (28) are essentially identical. Two edge members (14, 16) have mating surfaces with essentially constant cross-sectional shapes and longitudinal axes that conform to the curvatures at said lateral edges. Members (14, 16) are twisted about their respective longitudinal axes to bring said mating surfaces into engagement with the ends of beams (28). The reference line may be located slightly inboard of the operational compound curvature of the panel (6) to give the panel (6) a modified, flattened contour. In such case, panel (6) is sufficiently flexible to bow to conform to said curvature when the inboard side of panel (6) is pressurized.
대표청구항
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1. For use in a wall of an aircraft, said wall having an outer surface with a compound curvature, a movable panel comprising: right edge member means having a longitudinal axis that conforms to said curvature along the right edge of the panel and including right mating surface means with an essen
1. For use in a wall of an aircraft, said wall having an outer surface with a compound curvature, a movable panel comprising: right edge member means having a longitudinal axis that conforms to said curvature along the right edge of the panel and including right mating surface means with an essentially constant cross-sectional shape; left edge member means having a longitudinal axis that conforms to said curvature along the left edge of the panel and including left mating surface means with an essentially constant cross-sectional shape; a plurality of spaced-apart lateral beams, each of which has a right end portion, a left end portion, and a center portion; and means for securing each right end portion to the right edge member means and each left end portion to the left edge member means; wherein each of said right end portions is essentially identical, each of said left end portions is essentially identical, and each of said center portions is oriented at a substantially constant predetermined angle with respect to a center line located substantially midway between said right and left edge member means; and wherein each of said right and left edge member means has a configuration that is twisted about its respective longitudinal axis, to position said right and left mating surface means so that they will be in mating engagement with each of said right and left end portions, respectively, in the assembled panel. 2. A movable panel as described in claim 1, in which said center line is a mean contour interpolated from the longitudinal axes of said right and left edge member means. 3. A movable panel as described in claim 1, in which said beams are substantially symmetrical about said center line. 4. A movable panel as described in claim 1, in which said predetermined angle is substantially equal to 90 degrees. 5. A movable panel as described in claim 3, in which said predetermined angle is substantially equal to 90 degrees. 6. A movable panel as described in claim 5, in which the laterally extending longitudinal axis of each beam is substantially perpendicular to a side portion of each mating surface means, said side portion being in mating engagement with the corresponding end portion of such beam. 7. A movable panel as described in claim 1, in which the right mating surface means comprises a continuous stop surface that matingly engages each of said right end portions, and the left mating surface means comprises a continuous stop surface that matingly engages each of said left end portions. 8. A movable panel as described in claim 7, in which the cross-sectional shape of the right mating surface means has a stepped configuration to mate with a corresponding stepped configuration of each of said right end portions, and the cross-sectional shape of the left mating surface means has a stepped configuration to mate with a corresponding stepped configuration of each of said left end portions. 9. A movable panel as described in claim 7, in which said beams are substantially symmetrical about said center line, and the cross-sectional shape of each of the right and left mating surface means has a stepped configuration to mate with a corresponding stepped configuration of each of said right and left end portions, respectively; and in which the stepped configuration of said end portions has portions essentially parallel to the longitudinal axis of the corresponding beam and portions essentially perpendicular to said axis of said beam. 10. For use in a wall of an aircraft, said wall having an outer surface with a compound curvature, a movable panel comprising: right edge member means having a longitudinal axis that conforms to said curvature along the right edge of the panel and including right mating surface means with an essentially constant cross-sectional shape; left edge member means having a longitudinal axis that conforms to said curvature along the left edge of the panel and including left mating surface means with an essentially constant cross-sectional shape; a plurality of spaced-apart lateral beams, each of which has a right end portion, a left end portion, and a center portion; and means for securing each right end portion to the right edge member means and each left end portion to the left edge member means; wherein each of said right end portions is essentially identical, each of said left end portions is essentially identical, and each of said center portions is oriented at a substantially constant predetermined angle with respect to a center line located substantially midway between said right and left edge member means; wherein said center line is positioned slightly inboard of said compound curvature to give the panel a modified, flattened outboard contour with respect to said compound curvature; and the beams are sufficiently flexible so that a higher pressure on the inboard side of the panel than on the outboard side of the panel tends to bow the panel to conform said outboard contour to said compound curvature; and wherein said right and left edge member means are twisted about their respective longitudinal axes to bring said right and left mating surface means into mating engagement with each of said right and left end portions, respectively. 11. A movable panel as described in claim 10, in which said center line is a mean contour interpolated from the longitudinal axes of said right and left edge member means. 12. A movable panel as described in claim 10, in which the right mating surface means comprises a continuous stop surface that matingly engages each of said right end portions, and the left mating surface means comprises a continuous stop surface that matingly engages each of said left end portions. 13. A movable panel as described in claim 10, in which said beams are substantially symmetrical about said center line. 14. A movable panel as described in claim 12, in which the cross-sectional shape of the right mating surface means has a stepped configuration to mate with a corresponding stepped configuration of each of said right end portions, and the cross-sectional shape of the left mating surface means has a stepped configuration to mate with a corresponding stepped configuration of each of said left end portions. 15. For use in a wall of an aircraft, said wall having an outer surface with a compound curvature, a movable panel comprising: an outer skin; right edge member means having a longitudinal axis that conforms to said curvature along the right edge of the panel and including right mating surface means with an essentially constant cross-sectional shape; left edge member means having a longitudinal axis that conforms to said curvature along the left edge of the panel and including left mating surface means with an essentially constant cross-sectional shape; a plurality of spaced-apared lateral beams; each of which has a right end portion, a left end portion, and a center portion; and each of which has an outboard surface that is adjacent to and attached to the outer skin; and means for securing each right end portion to the right edge member means and each left end portion to the left edge member means; wherein each of said right end portions is essentially identical, each of said left end portions is essentially identical, and each of said center portions is oriented at a substantially constant predetermined angle with respect to a center line located substantially midway between said right and left edge member means; wherein said center line is positioned slightly inboard of said compound curvature to give the panel a modified flattened contour with respect to said compound curvature; and the beams and the outer skin are sufficiently flexible so that a higher pressure on the inboard beam side of the outer skin than on the opposite side of said skin tends to bow each beam and the outer skin to conform said skin and said outboard surfaces of the beams to said compound curvature; and wherein said right and left edge member means are twisted about their respective longitudinal axes to bring said right and left mating surface means into mating engagement with each of said right and left end portions, respectively. 16. A movable panel as described in claim 15, in which said outboard surfaces of the beams are essentially flat when the pressures on the beam side and the opposite side of the outer skin are substantially equal. 17. A movable panel as described in claim 16, in which said beams are substantially symmetrical about said center line. 18. A movable panel as described in claim 16, in which the right mating surface means comprises a continuous stop surface that matingly engages each of said right end portions, and the left mating surface means comprises a continuous stop surface that matingly engages each of said left end portions. 19. A movable panel as described in claim 18, in which the cross-sectional shape of the right mating surface means has a stepped configuration to mate with a corresponding stepped configuration of each of said right end portions, and the cross-sectional shape of the left mating surface means has a stepped configuration to mate with a corresponding stepped configuration of each of said left end portions. 20. For use in a wall of an aircraft, said wall having an outer surface with a compound curvature, a movable panel comprising: right edge member means having a longitudinal axis that conforms to said curvature along the right edge of the panel; left edge member means having a longitudinal axis that conforms to said curvature along the left edge of the panel; a plurality of spaced-apart lateral beams, each of which has a right end portion, a left end portion, and a center portion; and means for securing each right end portion to the right edge member means and each left end portion to the left edge member means; wherein each of said center portions is oriented at a substantially constant predetermined angle with respect to a center line located substantially midway between said right and left edge member means; and wherein said center line is positioned slightly inboard of said compound curvature to give the panel a modified, flattened outboard contour with respect to said compound curvature; and the beams are sufficiently flexible so that a higher pressure on the inboard side of the panel than on the outboard side of the panel tends to bow the panel to conform said outboard contour to said compound curvature. 21. A movable panel as described in claim 20, in which said center line is a mean contour interpolated from the longitudinal axes of said right and left edge member means. 22. A movable panel as described in claim 20, in which said predetermined angle is substantially equal to 90 degrees. 23. A movable panel as described in claim 20, in which the right and left edge member means each includes a continuous stop surface that matingly engages each of said right and left end portions, respectively. 24. A movable panel as described in claim 20, which further comprises an outer skin; in which an essentially flat outboard surface of each beam is adjacent to and attached to the outer skin; and in which said higher pressure tends to bow each beam and the outer skin to conform said skin and said outboard surfaces of the beams to said compound curvature. 25. A movable panel as described in claim 20, in which said beams are substantially symmetrical about said center line. 26. A movable panel as described in claim 23, in which the continuous stop surface of the right edge member means has a stepped configuration to mate with a corresponding stepped configuration of each of said right end portions, and the continuous stop surface of the left edge member means has a stepped configuration to mate with a corresponding stepped configuration of each of said left end portions. 27. A method of making a movable panel to be installed in an opening in a wall of an aircraft, said wall having a compound curvature, comprising: selecting a center reference line; positioning a plurality of beams with substantially identical end portions in a spaced-apart relation along said reference line and orienting the longitudinal axes of said beams to form a substantially constant angle with said line; forming edge members to have mating surfaces with substantially constant cross-sectional shapes, to have longitudinal axes that conform to said compound curvature along the lateral edges of said opening, and to have configurations that are twisted about their respective longitudinal axes to cause the mating surfaces to be positioned to matingly engage opposite end portions of each of the beams; and securing said opposite end portions to said edge members. 28. A method as described in claim 27, in which the step of selecting a center reference line comprises interpolating a mean contour from the curvatures at the lateral edges of said opening. 29. A method as described in claim 27, in which the step of positioning and orienting said beams includes orienting their longitudinal axes to be substantially perpendicular to said line. 30. A method as described in claim 27: in which the step of selecting a center reference line includes positioning said line slightly inboard of said compound curvature to give the panel a modified, flattened outboard contour with respect to said compound curvature; and which further comprises allowing the beams to deflect an amount sufficient to bow the panel to conform said outboard contour to said compound curvature when there is a higher pressure on the inboard side of the panel than on the outboard side of the panel. 31. A method of making a movable panel to be installed in an opening in a wall of an aircraft, said wall having a compound curvature, comprising: selecting a center reference line, and positioning said line slightly inboard of said compound curvature to give the panel a modified, flattened outboard contour with respect to said compound curvature; positioning a plurality of beams in a spaced-apart relation along said reference line and orienting the longitudinal axes of said beams to form a substantially constant angle with said line; forming edge members to have longitudinal axes that conform to said compound curvature along the lateral edges of said opening; securing opposite end portions of each of the beams to said edge members; and allowing the beams to deflect an amount sufficient to bow the panel to conform said outboard contour to said compound curvature when there is a higher pressure on the inboard side of the panel than on the outboard side of the panel.
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