Apparatus for producing all metal spring cushions
US5289853A · kind A · utility
0Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1992 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Sep 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/147
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
For producing an all-metal spring cushion, a knitted piece knitted from spring wire is wound in a winding sleeve (14). In the winding sleeve (14), the end of the knitted piece is fixed to the knitted roll (76) by micro-welding. In a pressing station (22), the winding sleeve (14) is flush and aligned in front of a pressing sleeve (148) of the same inner diameter. The knitted roll is pushed into the pressing sleeve (148) by a press die (162) and compressed therein to form a spring cushion. Then, the spring cushion is ejected from the pressing sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.