Platen gap adjusting mechanism of printer
US4738552A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1986 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Mar 6, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/3082
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printer includes a platen having a longitudinal axis and a printing head mounted in opposition to the platen. The guide shaft is mounted to extend parallel to the axis of the platen. A carriage supports the printing head and includes a carriage frame mounted on the guide shaft for movement axially therealong and for movement rotatably thereabout and a base plate having a first end integral with the carriage frame and a second end directed away therefrom. A guide plate is fixed at a position below the second end of the base plate and extends parallel to the guide shaft. A parallel link mechanism includes a fixing member attached to a lower surface of the second end of the base plate and a slider memebr connected to the fixing member. The slider member has a slot within which fits the guide plate, such that movement of the carriage axially of the guide shaft causes the parallel link mechanism and the second end of the base plate to be guided by the guide plate. An adjusting screw is threaded through a hole in the second end of the base plate and has a tip end in engagement with the slider member. Thus, upon rotation of the adjusting screw the slider member and the second end of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.