One piece clutch mechanism with drive gear
US6623193B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Nov 27, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J17/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink ribbon cartridge has first and second tubes (130, 132) for holding an ink ribbon. The tubes have slots formed in each end. Spindles (140, 142, 162, 164) are attached at the ends of the tubes. The spindles have a disk portion and an end which is received by tube slots. One of the spindles has a cantilevered member (196) which engages a slot of a tube and allows rotation of the tube in only one direction. The cantilevered member has an end having a radial edge (200) and a ramp (202) adjacent the straight side. Rotation of the spindle in one direction abuts the radial edge against a wall of the slot thus providing a positive drive and allowing rotation of the tube with the spindle. Rotation of the spindle in a second direction opposite to the first direction causes the ramp side to contact and slide along a wall of the slot, thus deflecting the cantilevered member inward toward the center of the spindle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.