| 摘要 |
A gear box may include a driving gear, an idle gear unit and a driven gear. The driving gear may rotate around a first shaft. The idle gear unit. The idle gear unit may include a first idle gear interlocked with the driving gear, and a second idle gear. The first and the second idle gear may rotate around a second shaft in parallel with the first shaft. The driven gear may be interlocked with the second idle gear. Therefore, it is easy to adjust backlash among the idle gear unit and the driving gear and the driven gear, since the idle gear unit is combined to the driving gear and the driven gear separably, and thus noise generated from the idle gear unit can be suppressed. |
