Printing mechanism with print hammer having noise dampener
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United States of America Patent
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-
Dec 29, 1992
Grant Date -
N/A
app pub date -
Oct 28, 1991
filing date -
Oct 28, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A printing device including a print hammer having a noise dampener for use with an impact printer mechanism. The print hammer has a significant mass for impacting a character pad against an ink ribbon, paper and a platen. In a first embodiment the print hammer includes an acoustic noise dampening layer interposed between a mass weight and the hammer face which carries the anvil that impacts during printing. In other embodiments the print hammer is formed in two parts. One part having a weighted mass and the other part being pivotally coupled to the printer mechanism. The two parts are structurally joined together by a noise dampening member. Transmission of acoustic noise during impact printing through the hammer is reduced.
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