Bead breaking mechanism
US4357977A · kind A · utility
2Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1980 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Feb 19, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C25/132
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tire changing apparatus is provided in which a lower bead-breaking shoe is pivotally mounted on a lever arm at one distance from the lever fulcrum and in which power is transmitted to the lever arm at a greater distance from the lever arm fulcrum. The bead-breaking shoe is of such a form that the leading edge of the shoe meets the wheel rim with its centerline spaced therefrom and engages the tire bead at substantially the leading edge centerline, thereafter engagement expanding progressively about the tire bead perimeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.