| 摘要 |
PURPOSE:To try to make a circulator thinner and also reduce its load while in use by covering the air intake opening of a blower with an air cleaning filter and forming a filter storage section on the main body of a circulator which withdraws from the air intake opening and is held there when it is not required. CONSTITUTION:The use of a filter 2 can be differentiated such that it is either received in a storage section or drawn out from the storage section 4 to cover the air intake opening 6 by operating an operation main body 26 to right or left. As a result when clean air is required, the filter 2 is used as it covers the air intake opening 6, and its large suction area gives high suction efficiency and a high dust collection. When cleaning of the air is not required, the filter 2 is stored and suction with a lower load is effected. With this arrangement there is no complexity in construction such as changing-over of air channels, and circulator can be made thinner with a simple construction and at the same time long life of the filter can be achieved and a low load that matches the use of an air passage resistance can be attained. |
