RIBBON CASSETTE

• Main Authors: KATO TSUTOMU, TONISHI TOSHIKO, MURATA SUSUMU, KODAMA AKIKO
• Format: Patent
• Language: English; Japanese
• Published: 26.01.2017
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To provide a ribbon cassette allowing an operator to easily inspect whether or not parts used to apply a rotary load to a ribbon spool are correctly fitted, handling only the ribbon cassette.SOLUTION: In a ribbon cassette, a rotary member 290, to which a clutch spring 280 is fitted, is fitted to an upper inner surface 242 of a ribbon spool 200. The ribbon spool 200 comprises a first recessed part 211 arranged in a lower inner surface 241. A lower case 103 comprises a second supporting hole 112, to which a protruding part 200D of the ribbon spool 200 is fitted. The second supporting hole 112 is arranged at a position closer to the lower inner surface 241 than the upper inner surface 242, and is a hole communicating with a fitting hole 200A. At least a part of the second supporting hole 112 overlaps, in an axis P direction, the entire circular area surrounded by a rotation locus of a radial end part of the first recessed part 211.SELECTED DRAWING: Figure 16 【課題】リボンスプールに回転負荷を付与する部品が正しく装着されているか否かを、作業者がリボンカセット単体で容易に検査可能なリボンカセットを提供する。【解決手段】クラッチバネ２８０が装着された回転部材２９０は、リボンスプール２００の上側内面２４２に装着される。リボンスプール２００は、下側内面２４１に設けられた第一凸部２１１を有する。下ケース１０３は、リボンスプール２００の突出部２００Ｄが嵌まる孔である第二支持孔１１２を有する。第二支持孔１１２は、上側内面２４２よりも下側内面２４１に近い位置にあり、且つ装着孔２００Ａと通じる孔である。第二支持孔１１２の少なくとも一部は、第一凸部２１１の半径方向の端部の回転軌跡によって囲まれた円形状の領域の全部と軸線Ｐ方向に重なる。【選択図】図１６