Method and apparatus for mounting a daisy print wheel on the shaft of a print head
US4496254A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1983 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Mar 18, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J1/243
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for releasably attaching a daisy print wheel to a splined shaft of an angular drive such that the print wheel can be driven in angular rotation with substantially no backlash. The apparatus comprises a splined hub fixed to the print wheel and slidably engageable with the splined shaft and a holder mounted on the hub for movement between a locking position in which the hub is locked on the splined shaft with interference fit and a released position in which the hub with the holder thereon is slidably removable from the splined shaft together with the print wheel. The hub includes a plurality of angular segments of cantilever formation which are pressed into the spaces between the splines on the drive shaft with interference fit by the engagement of the holder in its locking position. The holder is axially movable on the hub in traveling between the locking and release positions and is not normally removable from the hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.