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US 4,382,324 AGranted
Method of making a light-weight, two-wheel set
AssigneeMannesmann Aktiengesellschaft
InventorClemens Halene
Life of this patent
Estimating the term…
Abstract
Cylindrical blanks are formed into wheels, each with an integral shaft; and one of the shafts is shrunk into the other one in order to complete the set. Each wheel may have an integral, outwardly extending bearing hub.
Claims4
A method of making a light-weight, two-wheel set, comprising the steps of
- press-working in a die a cylindrical blank into a shell and short, conical tube;
- stepwise forming the shell into a cone;
- working the conical tube into a tubular shaft that remains integral with the shell and cone;
- shortening the tube;
- rolling the cone into a disk;
- repeating the preceding steps on a different blank in order to obtain a disk with an integral shaft of different diameter;
- and
- telescoping one of the shafts into the other one in order to obtain the two-wheel set.
5 more elements
A method of making a light-weight wheel to be combined with another to obtain a two-wheel set, comprising the steps of
- press-working in a die a cylindrical blank into a shell from which a solid conical pin-like portion extends, from the inside of the shell, and a second pin-like portion extends opposite thereto, from the outside of the shell;
- radially deforming the shell to obtain a shallow angle cone;
- axially press-working the pins to obtain a hollow shaft from which the shell extends, the hollow shaft having different cross sections;
- and
- rolling the cone into a wheel disk.
2 more elements
Dependencies are inferred from the claim text.