Patent ID: 8646997

Claim:
An ink ribbon cassette comprising: a shaft container including a reel-out shaft holder having a reel-out shaft bearing journaling an ink ribbon reel-out shaft, a reel-in shaft holder having a reel-in shaft bearing journaling an ink ribbon reel-in shaft, and a pair of lateral bodies connecting the reel-out shaft holder with the reel-in shaft holder; a reel-out shaft holder cover adapted to cover the reel-out shaft holder of the shaft container; and a reel-in shaft holder cover adapted to cover the reel-in shaft holder of the shaft container; wherein the reel-out shaft holder cover is connected to the reel-out shaft holder via a first connecting body; wherein the reel-in shaft holder cover is connected to the reel-in shaft holder cover via a second connecting body; wherein the first and second connecting bodies each have two or more hinges; and wherein a guide member is provided at an end of the reel-in shaft holder cover so that the guide member is in contact with and guides the ink ribbon when the reel-in shaft holder cover is closed relative to the reel-in shaft holder by turning the reel-in shaft holder upward; wherein the reel-in shaft holder cover has a curved portion, and a flat portion extending from a distal end of the curved portion, and the guide member is provided at an outermost end of the flat portion: and wherein the guide member has an abutment surface abutted against the ink ribbon, and the abutment surface includes an arcuate profile in cross-section.