An extruded beam element suitable for the construction of sandwich structures, comprises two parallel plates (2,3), each having a first part (2) and a second part (3), wherein the first parts of said plates (2) are connected by multiple webs, wherein at least two of said webs (1) are inclined with r
An extruded beam element suitable for the construction of sandwich structures, comprises two parallel plates (2,3), each having a first part (2) and a second part (3), wherein the first parts of said plates (2) are connected by multiple webs, wherein at least two of said webs (1) are inclined with respect to the longitudinal plane (Y) perpendicular to the plates (2,3), and wherein the first parts (2) and the webs (1,5) form a relatively rigid portion of the beam element and the second parts (3) form a relatively flexible portion of the beam element, as well as sandwich panels and tanks comprising said beam elements.
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1. An extruded beam element suitable for the construction of sandwich structures, comprising two parallel plates each of which comprises a first part connected to a cantilevering part lying in the same plane as the first part, the first parts of said plates being interconnected by multiple webs whos
1. An extruded beam element suitable for the construction of sandwich structures, comprising two parallel plates each of which comprises a first part connected to a cantilevering part lying in the same plane as the first part, the first parts of said plates being interconnected by multiple webs whose junctures with the first part conclude at about the connection between the cantilevering part and the first part on each of said parallel plates, wherein a minor section of the cantilevering part has a higher thickness than a major section of said cantilevering part and the major section of the cantilevering part has a lower thickness than the first part. 2. The extruded beam element according to claim 1, wherein at least one of the webs is parallel to a longitudinal plane that is perpendicular to the plates. 3. The extruded beam element according to claim 1, wherein the first part of the parallel plates comprises an external rib on its free end. 4. The extruded beam element according to claim 1, wherein the cantilevering part of the parallel plates has a width within the range of ½ to 1/10 of the total width of the parallel plates. 5. The extruded beam element according to claim 1, wherein the minor section at an end of the cantilevering part has a higher thickness than the major section of said cantilevering part. 6. The extruded beam element according to claim 1, wherein each of said first part comprises a receptacle for a longitudinal edge of the cantilevering part of an identical extruded beam element. 7. A sandwich panel, wherein said panel consists essentially of multiple extruded beam elements according to claim 1. 8. A tank for storing fluid, wherein at least parts of a roof, side wall or floor of said tank comprises a sandwich structure comprising extruded beam elements according to claim 7. 9. The tank according to claim 8, wherein the tank is for storing fluid at very low temperature and comprises an internal structure formed by supporting and anchoring tension stays in three perpendicular directions. 10. A sandwich panel, which comprises multiple identical extruded beam elements, wherein each element comprises two parallel plates, wherein each plate comprises a first part and a cantilevering part extending from the first part and lying in the same plane, the first parts of said plates being interconnected by multiple webs, wherein at least two of said webs are inclined with respect to a longitudinal plane that is perpendicular to the plates, wherein at least two of the webs form a triangular configuration together with the first part of one of said parallel plates, whereby the cantilevering parts are connected to a web or webs only at the transition between the first and the cantilevering parts, wherein the first part of the parallel plates is configured to receive an end of the cantilevering part of an identical extruded beam element, wherein a major section of the cantilevering part has a lower thickness than the first part. 11. A sandwich panel according to claim 10, wherein at least one of the webs is parallel to a longitudinal plane that is perpendicular to the plates. 12. The sandwich panel according to claim 10, wherein the first part of one of the parallel plates comprises an external rib. 13. The sandwich panel according to claim 10, wherein the cantilevering part of the parallel plates has a width within the range of ½ to 1/10 of the total width of the parallel plates. 14. The sandwich panel according to claim 10, wherein a minor section at an end of the cantilevering part has a higher thickness than the major section of said cantilevering part. 15. A fluid storage tank, wherein at least parts of a roof, side wall or floor of said tank comprise a sandwich structure comprising multiple identical extruded beam elements, wherein each extruded beam element comprises two parallel plates of equal width, wherein each plate comprises a first part and a cantilevering part integral with the first part, the two parts lying in the same plane, the first parts of said plates being interconnected by multiple webs, wherein at least two of said webs are inclined with respect to a longitudinal plane that is perpendicular to the plates, and wherein at least two of the webs form a triangular configuration together with the first part of one of said parallel plates whereby the cantilevering parts are connected to a web or webs only at the transition between the first and cantilevering parts, wherein the cantilevering parts of the parallel plates are configured to engage first parts of a second, identical sandwich structure, wherein a major section of the cantilevering parts of the parallel plates has a lower thickness than the first part of the parallel plates. 16. The tank according to claim 15, wherein at least one of the webs is parallel to a longitudinal plane that is perpendicular to the plates. 17. The tank according to claim 15, wherein the first part of one of the parallel plates comprises an external rib which includes a flange on the free end of the rib. 18. The tank according to claim 15, wherein the cantilevering part of the parallel plates has a width within the range of ½ to 1/10 of the total width of the parallel plates. 19. The tank according to claim 15, wherein a minor section at an end of the cantilevering part has a higher thickness than the major section of said cantilevering part. 20. The tank according to claim 15, wherein the tank is for storing fluid at very low temperature and comprises an internal structure formed by supporting and anchoring tension stays in three perpendicular directions.
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이 특허에 인용된 특허 (7)
Bassi Aldo (Milan ITX), Bodywork for a vehicle, in particular for an automobile, and process for manufacturing it.
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