| 摘要 |
PURPOSE: A hole cover is provided to allow the hole cover to be easily inserted into a hole by preventing a front portion of a head section of the hole cover from making contact with the hole. CONSTITUTION: A hole cover includes a head section(110). The head section(110) has a sectional area, which is increased from a front end to a rear end of the head section(110) so as to allow the hole cover to be easily inserted into a hole. The front end of the hole cover has a sectional area smaller than a sectional area of the hole so as to prevent the front end of the hole cover from making contact with the hole. The head section(110) is coupled to a tail section(120). The head section(110) is formed with an air passage(112). The tail section(120) has a sectional area smaller than a sectional area of the head section(110).
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