Claims
- 1. A door impact beam for a vehicle comprising:a flange for receiving a load; a reinforcement body having a cross section providing with a pair of side portions connected with the flange and a bottom portion connected with each side portion via a curved portion; the side portions having a radius of curvature of 6 mm-10 mm; the flange having a width approximately the same as a maximum width between the pair of side portions; and the side portions being inclined in an outward direction to increase a width between the side portions while extending from flange to the bottom portion.
- 2. A door impact beam for a vehicle according to claim 1, wherein the bottom portion has a thickness greater than a thickness of the flange and the flange has a thickness greater than the side portion.
- 3. A door impact beam for a vehicle according to claim 1, wherein the door impact bean is made from an aluminum alloy including 1-2 mass percent of magnesium and 7-9 mass percent of zinc.
- 4. A door impact beam for a vehicle according to claim 1, wherein the door impact beam is made from an aluminum alloy including compositions of 1-2 mass percent of magnesium, 7-9 mass percent of zinc, 0.1-0.4 mass percent of copper, 0.05-3 mass percent of manganese, 0.05-0.3 mass percent of chromium, 0.05-25 mass percent of zirconium, aluminum, and unavoidable impurity.
- 5. A door impact beam for a vehicle according to claim 1, wherein the door impact beam is made from an aluminum alloy which includes composition of 1-1.5 mass percent of magnesium, 7-7.8 mass percent of zinc, 0.15-0.3 mass percent of copper, 0.05-0.20 mass percent of manganese, 0.05-0.15 mass percent of chromium, 0.10-0.20 mass percent of zirconium, aluminum, and unavoidable impurity.
- 6. A door impact beam for a vehicle according to claim 1, wherein the door impact beam is made from an aluminum alloy which includes 1-2 mass percent of magnesium, 7-9 mass percent of zinc, and a transition element.
- 7. A door impact beam for a vehicle comprising:a flange for receiving a load; a reinforcement body having a cross section providing with a pair of side portions connected with the flange and a bottom portion connected with each side portion via a curved portion; the side portions being inclined in an outward direction to increase a width between the side portions while extending from flange to the bottom portion; the side portions having a radius of curvature of 6 mm-10 mm; the flange having a width substantially the same as a maximum width between the pair of side portions; and a neutral axis of a cross section modulus of the door impact beam being positioned approximately in a center of a height between the flange and the bottom portion.
- 8. A door impact beam according to claim 7, wherein the bottom portion includes a thickness greater than a thickness of the flange and the flange includes a thickness greater than the side portion.
- 9. A door impact beam for a vehicle according to claim 7, wherein the door impact beam is made from an aluminum alloy including 1-2 mass percent of magnesium and 7-9 mass percent of zinc.
- 10. A door impact beam for a vehicle according to claim 7, wherein the door impact beam is made from an aluminum alloy which includes compositions of 1-2 mass percent of magnesium, 7-9 mass percent of zinc, 0.1-4 mass percent of copper, 0.05-0.3 mass percent of manganese, 0.05-0.3 mass percent of chromium, 0.05-0.25 mass percent of zirconium aluminum, and unavoidable impurity.
- 11. A door impact beam for a vehicle according to claim 7, wherein the door impact beam is made from an aluminum alloy which includes composition of 1-1.5 mass percent of manganese, 7-7.8 mass percent of zinc, 0.15-0.3 mass percent of copper, 0.05-0.20 mass percent of manganese, 0.05-0.15 mass percent of chromium, 0.10-0.20 mass percent of zirconium, aluminum, and unavoidable impurity.
- 12. A door impact beam for a vehicle according to claim 7, wherein the door impact beam is made from an aluminum alloy including 1-2 mass percent of magnesium, 7-9 mass percent of zinc, and a transition element.
- 13. A door impact beam for a vehicle comprising:flange for receiving a load; a reinforcement body whose cross-section comprises a pair of side portions connected to the flange and to a bottom portion, each of the side portions being connected to the bottom portion by way of a curved portion, each curved portion having an inner surface facing interior of the cross-section, the inner surface of each curved portion being curved and possessing a radius of curvature of at least 6 mm; and the side portions being inclined in an outward direction so that a distance between the side portions increases in a direction toward the bottom portion.
- 14. A door impact beam for a vehicle according to claim 13, wherein the bottom portion has a thickness greater tan a thickness of the flange, and the thickness of the flange is greater than a thickness of the side portions.
- 15. A door impact beam for a vehicle according to claim 13, wherein the flange has a width that is approximately the same as a maximum width between the pair of side portions.
- 16. A door impact beam for a vehicle according to claim 13, wherein the door impact beam is made from an aluminum alloy including 1-2 mass percent of magnesium and 7-9 mass percent of zinc.
- 17. A door impact beam for a vehicle according to claim 13, wherein the door impact bean is made from an aluminum alloy which includes compositions of 1-2 mass percent of mangnesium, 7-9 mass percent of zinc, 0.1-0.4 mass percent of copper, 0.05-0.3 mass percent of manganese, 0.05-0.3 mass percent of chromium, 0.05-0.25 mass percent of zirconium, aluminum, and unavoidable impurity.
- 18. A door impact beam for a vehicle according to claim 13, wherein the door impact beam is made from an aluminum alloy having a composition of 1-1.5 mass percent of magnesium, 7-7.8 mass percent of zinc, 5-0.3 mass percent of copper, 0.05-0.20 mass percent of manganese, 0.05-0.15 mass percent of chromium, 0.10-0.20 mass percent of zirconium, aluminum, and unavoidable impurity.
- 19. A door impact beam for a vehicle according to claim 13, wherein the door impact beam is made from an aluminum alloy including 1-2 mass percent of magnesium, 7-9 mass percent of zinc, and a transition element.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2002-008203 |
Jan 2002 |
JP |
|
Parent Case Info
This application is based on and claims priority under 35 U.S.C. §119 with respect to Japanese Patent Application 2002-008203 filed on Jan. 17, 2002, the entire content of which is incorporated herein by reference.
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