Plastics joint
US3999871A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1975 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Jun 17, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32262
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pivotal mounting, especially for an automobile sun visor, comprising a one-piece plastics sleeve having a generally cylindrical bore, the radially inner surface of which, when viewed along the axis, has a first number of radial undulations spaced around its circumference, in combination with a generally cylindrical member which is a one-piece plastics moulding and lies substantially coaxially within the bore, the radially outer surface of the member, when viewed along the axis, having a second number of radial undulations spaced around its circumference, both numbers being greater in value than one, and being different, the arrangement being such that each set of said undulations can register firmly with the other at a third number of relative angular positions of the sleeve and the member, the third number being greater than the first and second numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.