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US 6,290,408 B1Granted
Ribbon cassette with friction mechanism
AssigneeAlps Electric Co., Ltd.
InventorHideki Yorozu
Life of this patent
Estimating the term…
Abstract
A friction mechanism exerts a frictional force on a feed pinch roller to apply a proper tensile load to an ink ribbon when the ink ribbon is fed.
Claims6
A ribbon cassette comprising:
- a take-up reel and a feed reel supported for rotation in a housing, and an ink ribbon wound on the take-up reel and the feed reel;
- a print head receiving part formed in a section of a passage for the ink ribbon between the take-up reel and the feed reel to receive a thermal print head therein when the ribbon cassette is set in place on a thermal transfer printer;
- a take-up pinch roller and a feed pinch roller supported for rotation at a position between the print head receiving part and the take-up reel and at a position between the print head receiving part and the feed reel, respectively;
- and
- a friction mechanism for exerting a frictional force to the feed pinch roller to apply a tensile load to the ink ribbon,
- wherein the friction mechanism comprises an elastic friction member capable of exerting a frictional force on a core barrel included in the feed pinch roller by clasping the core barrel.
3 more elements
Dependencies are inferred from the claim text.