Inkribbon feed mechanism
US4342520A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1980 |
| Grant date | Aug 3, 1982 |
| Priority date | — |
| Expiry date | Mar 18, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J33/518
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkribbon feed mechanism is disclosed which feeds the inkribbon by utilizing power of a spacing motor by which a print head is transversed. The inkribbon feed mechanism comprises commanding means which detect a command element for reversing the inkribbon near one end of the inkribbon, an arm member which interlocks with the command means via a spring member and is pivotably supported by a pivot, a planetary gear member which is provided at one end of the arm member and is rotated by the power of the spacing motor via a drive gear member. In compliance with the alternate rotation of the spacing motor, the planetary gear member engages with a gear member of one reel or is slightly moved in orbit by the drive gear member so as not to render a rotational force to the reel. The arm member is pivoted by the command means to change the object which the planetary gear engages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.