| 摘要 |
To provide a gear drive mechanism that contributes to downsize office products and is easily disassembled by thinning the gear drive mechanism. ÄArrangementÜ By a structure such that a plurality of shafts 2 to 8 cantilever from a base plate 18 attached within a label writer X, and gears 9 to 15 are fit in the shafts 2 to 8, respectively, and are engaged with each other, specific shafts that are drive shafts 5, 7, 8, of the shafts 2 to 8 are driven. A groove 23 is formed around an end of at least one of the shafts 2, 4 of the shafts 2, 3, 4, 6, 8, 9 other than the specific shafts. A ring-shaped washer 25 having a slit 26 in a direction of diameter is fit in the groove 23 as a gear removal preventive 17 and a recessed portion 27 is provided to a side surface of the gear 14 throughout the washer 25. <IMAGE> |
