Intermittent paper feed mechanism
US4349287A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1980 |
| Grant date | Sep 14, 1982 |
| Priority date | — |
| Expiry date | Dec 19, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1526
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An intermittent paper feed mechanism comprises a driving wheel rotationally driven in an intermittent manner, a driven wheel disposed opposite to and rotated by the driving wheel, a stopper means for restricting the angle of rotation of the driving wheel and a coiled return spring for biasing the driving wheel in a direction opposite to its rotational driven direction. The driving and driven wheels, the stopper means and the return spring are coaxially mounted on a common shaft. The device of the invention enables a paper on which characters are printed by a printing head to be advanced at a high accuracy in an intermittent manner without using a stepping pulse motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.