Sheet-feed mechanism for rotary print head
US4591281A · kind A · utility
13Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1984 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Nov 8, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J13/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sheet-feed mechanism (10) for a rotary print head (12) includes a track (16) that defines a paper path in the form of a partial circular annulus. Belts (40 and 42) carry tabs (36, 38, 72, and 74) that support the lower end of a paper sheet, and movement of the belt causes the tabs to raise the paper sheet as it is printed. A guide structure (60) keeps the paper sheet in the proper cylindrical shape until it has left the track, at which time a curved portion (67) of a cam post (66) urges the paper out so that it pops open to a flat shape and falls into a tray (70).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.