| 摘要 |
According to an aspect, a dishwasher comprises: a tub; a spray arm; a sump; a fixed gear unit fixed to the tub with gear teeth arranged along an outer circumferential surface of the fixed gear unit; a rotary gear unit rotatably mounted on the spray arm and configured to engage the gear teeth of the fixed gear unit; and a link member connected to the rotary gear unit and the spray arm, wherein the spray arm comprises: a main arm including a pair of arms; and a pair of auxiliary arms rotatably connected to the main arm, wherein the rotary gear unit is configured to rotate based on engagement with the gear teeth of the fixed gear unit by rotation of the main arm, wherein the link member is configured to move by rotation of the rotary gear unit and rotate the pair of auxiliary arms. |
