Aluminum hollow bent member and vehicular member construction
AssigneeNissan Motor Co., Ltd.
InventorsMasaomi Takagi, Hideyori Sakuragi, Takahiro Watanabe
Life of this patent
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Abstract
A metallic product has a metallic curved hollow member having a hollow cross section which has a thin wall portion and a thick wall portion which is thicker than the thin wall portion. The metallic curved hollow member is produced by bending a metallic straight hollow member produced by extrusion of aluminum material which is one of aluminum and aluminum alloy. Another metallic product has a metallic curved hollow member having a hollow cross section which has a cross-shaped portion. The metallic curved hollow member is produced by bending a metallic straight hollow member produced by extrusion of aluminum material which is one of aluminum and aluminum alloy.
Claims20
A metallic product comprising:
- a metallic curved hollow member having a hollow cross section which comprises a thin wall portion and a thick wall portion which is thicker than the thin wall portion, the metallic curved hollow member being produced by bending a metallic straight hollow member produced by extrusion of aluminum material which is one of aluminum and aluminum alloy.
A production process of forming a metallic curved hollow member, the process comprising:
- forming a metallic straight hollow member by extrusion of aluminum material which is one of aluminum and aluminum alloy;
- and
- bending the metallic straight hollow member into the metallic curved hollow member, the metallic curved hollow member having a hollow cross section which comprises a thin wall portion and a thick wall portion which is thicker than the thin wall portion.
A metallic product comprising:
- a metallic curved hollow member having a hollow cross section which comprises a cross-shaped portion, the metallic curved hollow member being produced by bending a metallic straight hollow member produced by extrusion of aluminum material which is one of aluminum and aluminum alloy.
A production process of forming a metallic curved hollow member, the process comprising:
- forming a metallic straight hollow member by extrusion of aluminum material which is one of aluminum and aluminum alloy;
- and
- bending the metallic straight hollow member into the metallic curved hollow member, the metallic curved hollow member having a hollow cross section which comprises a cross-shaped portion.
A vehicular member construction comprising:
- a pair of side members extending substantially in a fore-and-aft direction of a vehicle and spaced apart from each other substantially in a widthwise direction of the vehicle;
- and
- a cross member for connecting the pair of the side members;
- wherein at least one of the side member and the cross member has a hollow cross section comprising:
- a thin wall portion;
- and
- a thick wall portion which is thicker than the thin wall portion.
A production process of forming a vehicular member construction, the process comprising:
- forming a metallic straight hollow member by extrusion of aluminum material which is one of aluminum and aluminum alloy;
- and
- bending the metallic straight hollow member into a metallic curved hollow member, the metallic curved hollow member having a hollow cross section which comprises a thin wall portion and a thick wall portion which is thicker than the thin wall portion.
A vehicular member construction comprising:
- a pair of side members extending substantially in a fore-and-aft direction of a vehicle and spaced apart from each other substantially in a widthwise direction of the vehicle;
- and
- a cross member for connecting the pair of the side members;
- wherein at least one of the side member and the cross member has a hollow cross section comprising a cross-shaped portion.
A production process of forming a vehicular member construction, the process comprising:
- forming a metallic straight hollow member by extrusion of aluminum material which is one of aluminum and aluminum alloy;
- and
- bending the metallic straight hollow member into a metallic curved hollow member, the metallic curved hollow member having a hollow cross section which comprises a cross-shaped portion.
Dependencies are inferred from the claim text.