Hammer assembly for use in impact printers
US3998154A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1975 |
| Grant date | Dec 21, 1976 |
| Priority date | — |
| Expiry date | Nov 13, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J9/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved hammer assembly is disclosed for use in impact printers having a print station comprising a continuously rotating print wheel and an adjacent hammer mechanism for selectively impacting print stock and an interposed ink ribbon against a raised element on the print wheel to thereby imprint a character on the print stock. The hammer assembly includes an elongated hammer having a hammer surface at one end and an actuating surface at the other end which is engaged by a hammer actuating device in the hammer mechanism having a controllable, substantially reciprocative movement. The elongated hammer is supported for substantially reciprocative, planar movement with respect to a similarly elongated first support member by a pair of linear leaf springs which extend between the elongated hammer and the first support member in a spaced-apart, parallel manner. A second support member is provided for rigidly securing the hammer assembly to a support means in the hammer mechanism and is connected to the first support member by a flexure which is located on the first support member at a location offset from but adjacent to a first end thereof. A pin is located on the first support memb…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.