Sheet punching device and image forming apparatus having the same
US7090120B2 · kind B2 · utility
1Cited by
15References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2003 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Sep 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9447
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sheet punching device that cuts holes in a sheet while punches are entering die holes, in which a plurality of punch trains along each of which a plurality of punches are aligned on a rotating shaft in parallel with the rotating shaft are disposed in the rotation direction of the rotating shaft, and the die holes are disposed in correspondence with the punches of the punch trains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.