| 摘要 |
PURPOSE: A device for cleaning a signboard installed at a high place is provided to automatically clean the signboard at a high place without outer water supply pipe or an air supply pipe. CONSTITUTION: A cleaner body includes a case(120) having a driving motor, and an auxiliary case(140) flexibly connected to both sides of the case by a first connection member(130a). A cleaner feeding unit is installed at the auxiliary case, and includes a reduction gear connected to the driving motor by a power transmission unit and a driving wheel(230) connected to the reduction gear. A cleaning unit is installed at the cleaner body, and is connected to the driving motor by a chain. And, the cleaning unit includes a brush(330) supported by a bracket(320) coupled with the bottom of the case.
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