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US 2009/0212601 A1Published application
Metal automobile frame of extruded members
AssigneeFerrari S.P.A.
InventorFabrizio Favaretto
Life of this patent
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Abstract
A metal automobile frame including a number of extruded, constant-section linear bars welded to one another at structural nodes defined by connecting bodies with pockets for housing the linear bars. A pierced linear bar includes a number of tabs, each of which is located inside the pierced linear bar, extends perpendicularly from a side of the pierced linear bar, and is sized so as not to interfere with the opening in the pierced linear bar.
Claims9
1-8. (canceled)
9:
- A metal automobile frame comprising:
- a number of extruded, constant-section linear bars welded to one another at structural nodes defined by connecting bodies with pockets for housing the linear bars;
- each linear bar is hollow with a closed polygonal cross section comprising a number of sides, and a number of corners, at each of which at least two sides join;
- at least one pierced linear bar includes at least one through opening on one side;
- the pierced linear bar comprises a number of tabs, each of which is located inside the pierced linear bar, extends perpendicularly from a side of the pierced linear bar, and is sized so as not to interfere with the opening in the pierced linear bar.
2 more elements
10:
- A metal frame as claimed in claim 9, wherein the pierced linear bar comprises two first tabs extending perpendicularly from the side with the opening, and on opposite sides of the opening.
11:
- A metal frame as claimed in claim 9, wherein the pierced linear bar comprises a number of second tabs extending perpendicularly from a side perpendicular to the side with the opening.
12:
- A metal frame as claimed in claim 9, wherein the pierced linear bar is of a first thickness at the sides, and of a second thickness, greater than the first thickness, at the corners.
13:
- A metal frame as claimed in claim 12, wherein the thickness varies gradually from the first thickness to the second thickness towards each corner.
14:
- A metal frame as claimed in claim 13, wherein the ratio between the second thickness and the first thickness ranges between 1.5 and 2.
15:
- A metal frame as claimed in claim 13, wherein the thickness is constant and equal to the second thickness about each corner, and is constant and equal to the first thickness at the center of each side.
16:
- A metal frame as claimed in claim 9, comprising two pierced linear bars, each located at an attachment for a rear suspension.