Label printer such as a printer for printing self-adhesive labels
US5547293A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Sep 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/312
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A label printer for printing labels can typically have a pressure roller and a corresponding print head, which print head can have a support, a spring base plate, and a spring disposed between the support and the spring base plate to bias the print head into engagement with the pressure roller. The spring base plate can be rotationally mounted on a bearing shaft which is preferably parallel to the pressure roller, and the free end of the bearing shaft can be flattened over a portion of its length to form two parallel key surfaces for engaging with a locking element that adjusts the biasing force of the spring by engaging and positioning the spring base plate. The locking element has a keyhole-like opening, with a circular portion having a diameter which is approximately equal to the diameter of the free end of the bearing shaft, and a narrow portion having a width approximately equal to the distance between the key surfaces of the bearing shaft to thereby non-rotationally fix the locking element to the bearing shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.