Abstract In order to have a sufficiently large elongation at fracture in conjunction with high strength values, a pressure-diecast steering wheel skeleton consists of an aluminum alloy which is composed of ______________________________________ 2.5 to 3.5 % by weight magnesium
0.10 to 0.30 % by weight silicon
0.40 to 0.60 % by weight iron
0.25 to 0.45 % by weight manganese
0.015 to 0.05 % by weight copper
0.035 to 0.085 % by weight zinc
balance aluminum.
______________________________________
A steering wheel skeleton including a hub, spokes and a rim, the hub and the spokes of the steering wheel having been made integrally by pressure diecasting from an AlMg alloy comprising by weight ______________________________________
2.5 to 3.5% magnesium
0.10 to 0.30% silicon
0.40 to 0.60% iron
0.25 to 0.45% manganese
0.015 to 0.05% copper
0.035 to 0.085% zinc
balance aluminum.
______________________________________
Claim 2
Dependent Claim
62 words
A steering wheel skeleton including a hub, spokes and a rim, the hub and the spokes of the steering wheel having been made integrally by pressure diecasting from an AlMg alloy comprising by weight ______________________________________
2.5 to 3.5% magnesium
0.10 to 0.30% silicon
0.40 to 0.60% iron
0.25 to 0.45% manganese
0.015 to 0.05% copper
0.035 to 0.085% zinc
balance aluminum.
______________________________________
Claim 3
Dependent Claim
30 words
A steering wheel skeleton according to claim 1, wherein the alloy comprises by weight ______________________________________
2.60% magnesium
0.20% silicon
0.40% iron
0.35% manganese
0.03% copper
0.06% zinc
balance aluminum.
______________________________________
Claim 4
Dependent Claim
28 words
A steering wheel skeleton according to claim 1, wherein the hub (3), the spokes (4) and the rim (2) of the steering wheel consist of an integral casting.
Claim 5
Dependent Claim
25 words
A steering wheel skeleton according to claim 1, wherein the skeleton is a structural element which will undergo a uniform deformation under a crash loading.
Claim 6
Dependent Claim
15 words
A steering wheel comprising a steering wheel skeleton according to claim 1 and a covering.
Claim 7
Dependent Claim
13 words
A steering wheel according to claim 5, wherein the covering is polyurethane foam.