Pivotally mounted guide means in endless ribbon cassettes
US4645363A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Oct 10, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J35/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A pivotal guide for changing the direction of a typing ribbon in typewriters such that when raising or lowering the ribbon at the printing location relative to the printing element, transverse forces are eliminated. The guide comprises a cylindrical body having a longitudinal slot which receives an end wall of the magazine, the bottom of the slot being formed with two projecting sloped surfaces which intersect midway of the body to form a pivot axis for the body on the edge of the end wall. The body has cylindrical end surfaces confined between cover plates of the magazine to limit axial movement of the guide body and the ribbon thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.