Patent · US Expired

Method and apparatus for improving concentricity in automobile tires

US6689304B1 · kind B1 · utility

1Cited by

13References

62Claims

0Family size

Assignee

Continental AG · DE

Inventors

Günter Homt · Garbsen, DE
Michael Glinz · Neustadt, DE
Horst Sergel · Hannover, DE

Key dates

Filing date	Feb 16, 2001
Grant date	Feb 10, 2004
Priority date	—
Expiry date	Feb 16, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29D2030/0642
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Process and apparatus for improving a concentricity of a pneumatic vehicle tire having a bead. The process includes subjecting at least a portion of the bead, after vulcanization, to a plastic deformation post-treatment. The post-treatment improves the concentricity of the tire. The apparatus includes a drum having a surface which engages a radially inner bead seat surface of the tire. The drum includes at least one of an internal heating mechanism and an internal cooling mechanism. The drum is adapted to plastically deform at least a portion of the bead of the tire so as to affect at least one of a first, a second, and a third harmonic. The plastic deformation improves the concentricity of the tire.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.