| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an easy-to-use air injection device at cleaning operation. <P>SOLUTION: The air injection device includes: an opening 2 for sucking dust or injecting air; a suction fan 5 arranged in a suction chamber 6 on which sucking force acts, and working by the sucking force; an injection fan 9 arranged in an injection chamber 10, and generating injection force; a rotary shaft 13 transmitting power of the suction fan 5 to the injection fan 9; an air inlet 7 taking in outside air for rotating the suction fan 5; a driving means 15 activating a switch 14 for sucking or injecting air from the opening 2; a lid 17 varying the rate of the outside air taken in from the air inlet 7; a lid driving means 18 for activating the lid 17; and an operation means 19 for allowing a user to switch the rate of air injected from the opening 2. The user operates the operation means 19 to activate the lid 17, and thereby the amount of taken-in outside air is regulated. As a result, a rotating speed of the injection fan 9 is varied and the amount of air injected from the opening 2 can be varied. <P>COPYRIGHT: (C)2013,JPO&INPIT |
