Vehicle wheel with a pneumatic tire

US6672349B1 · kind B1 · utility

Assignee

• Continental AG · DE

Inventors

• Michael Glinz · Neustadt, DE
• Horst Sergel · Hannover, DE
• Hans-Bernd Hellweg · Seelze, DE
• Heinrich Huinink · Garbsen, DE

Key dates

• Filing date: Feb 23, 1998
• Grant date: Jan 6, 2004
• Expiry date: Feb 23, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T152/10045
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Vehicle wheel that includes a pneumatic tire mounted on a wheel rim. The pneumatic tire includes a tire tread, two side-walls, a carcass, reinforcing elements, and two tire beads with bead cores. The vehicle wheel also includes an emergency support body, mounted on the wheel rim and positioned inside the pneumatic tire. The emergency support body includes an emergency rolling surface to support the tire in case of a failure of the pneumatic tire. The emergency rolling surface includes a radially exterior surface of a ring torus with a bowl-shaped cross section, and the ring torus includes axially exterior sections having cross-sectional contours with first curvatures open to the wheel rim and an intermediate section positioned between the axially exterior sections having a contour with a second curvature open to a crest point of the pneumatic tire. The first and second curvatures include at least one radius of curvature and at least one supporting element is positioned to support the ring torus on the wheel rim.