| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a hitting sound to be generated when a shutter comes into collision with a sealing member at closing operation of the shutter while restraining an unwanted backflow of air. <P>SOLUTION: In this shutter device provided with a housing 21 having an opening 22, the shutter 23 for closing the opening 22, a shutter receiving part receiving the shutter 23, and the sealing member 25 for sealing a gap between the shutter receiving part constituting part of the housing 21 and the shatter 23, a spring 26 is provided separately from the sealing member 25 to buffer impact of the collision of the shutter 23 with the sealing member 25 at the closing operation of the shutter 23. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
