| 摘要 |
A machine for applying liquid coatings to walls and ceilings. Coating of surfaces in building applications with the existing hand-cranked coating machines (Tyrolean Machines) is tiring work as the operator usually holds the machine in his left hand (generally the weaker hand) and cranks the handle with his right hand. Constant, or high speeds, are difficult to maintain. In many cases, to keep the machine running constantly the job has to be done by two operators, as cranking the handle for long periods would be too tiring for one person. This apparatus has been in use for the last 40 years. Despite numerous attempts to motorise these machines, a satisfactory solution for the problem has not been found. A portable motorised coating machine, powered by a D.C. motor has numerous advantages. For example, their self-starting aspect. The power-to-weight ratio of D.C. motors. Their ability to run at a constant, low speed, and the high safety standard achieved by the low voltage and a common feature of these motors being that they are sealed units, makes them an ideal solution to the problem. |
