Method for fastening a covering part at a frame part
US4637116A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1985 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Nov 8, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/4966
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
For fastening a cover part at a frame part in which both parts have at least a metallic frame structure, spherical segments formed out of the frame part with fasteners in the form of balls are provided while the counter fasteners are constructed as collars which are components of the cover part and extend angularly bent in the direction of the frame part. After inverting the collars over the balls, each collar is pressed flat by a predetermined amount under straightening during a pressing operation in which the frame part serves as supporting surface so that at the end of the deformation operation, the collar is supported at the ball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.