Punch holder with stripper arrangement
US5176057A · kind A · utility
25Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Oct 11, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9476
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A punch holder is described having a stripper arrangement composed of an annular array of nested coil springs housed within a series of aligned facing bores in a punch holder tang and punch holder body to generate a high stripping force in a compact space. A threaded removal ring is employed to force a press fitted stripper cap off the end of the punch holder body. A support ring can be employed to support the stripping cap for small sized punches, or a metal reinforcement molded into the stripper cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.