| 摘要 |
PROBLEM TO BE SOLVED: To solve defect which is extremely inconvenient to store and carry a protective hat, so-called helmet when the hat is not worn, because the protective hat body is largely bulky in a conventional structure. SOLUTION: In this invention, a hat body, wearing body, etc., of a protective hat is formed into divided parts which are not an integrally molded product and the divided hat body is made movable and shrunk when the hat body is not worn to make the protective hat body small. Thereby, the protective hat can be stored in smaller space and is made convenient to carry, compared with conventional protective hats.
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