| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a foldable protective mask whose nose pad angle can be adjusted.SOLUTION: One support frame 1 is provided and one each of a cut groove 10 is formed at both ends of the support frame 1. One connection member 2 is provided to a connection rod 13 of the support frame 1, a C-shaped groove part 20 is formed at one end of the connection member 2, and a notch 21 is formed in the intermediate part of the C-shaped groove part 20. A convex part 22 is provided to the other end of the connection member 2, and one annular groove 23 is formed in the convex part 22. One nose pad 3 is provided on the connection rod 13 of the support frame 1, and a connection groove 31 is formed in a connection part 30. A plurality of engaging grooves 32 are formed on the internal wall surface of the connection groove 31. Also, one protection plate 4 is provided in front of the support frame 1. An insertion hole 40 is provided in the intermediate part of the protection plate 4, and a fitting groove 41 is formed at both ends of the protection plate 4.</p> |
