Cam locking system
US5108216A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Sep 10, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/76
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A locking system is disclosed comprising two elements connected mechanically together so as not to be able to move apart, as well as a cam mounted for rotation on the first of said elements and having a contact surface pressing against a bearing face carried by the second of said elements. According to the invention, said contact surface of said cam has at least approximately a profile in the form of a logarithmic spiral, whereas said bearing face is flat and said cam may rotate about a hub on the axis of which is located the origin of said logarithmic spiral, said hub being mounted for rotation on said first element about an off-centered axis of rotation opposite said contact surface of said cam. Resilient means are provided for rotating said cam in a first direction such that said contact surface moves towards said bearing face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.