Printing assembly having liftable carriage with constrained rotational movement
US9193194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2014 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Aug 29, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printer assembly includes a housing having a pair of opposite first and second sidewalls, the first sidewall having a vertical guide slot; a shaft rotatably mounted between the sidewalls; pinions fixedly mounted at either end of the shaft; a print bar carriage slidably received within the housing; and a drive motor for rotating the shaft and lifting the print bar carriage. The print bar carriage includes: a chassis; first and second racks engaged with respective pinions to define a rack-and-pinion lift mechanism; first bearings rotatably mounted at a first side of the chassis, each first bearing being received in the guide slot; and a printhead supported by the chassis. During sliding movement of the print bar carriage, the first bearings travel within the guide slot and bear against opposite guide surfaces to constrain rotational movement of the print bar carriage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.