| 摘要 |
PROBLEM TO BE SOLVED: To provide a mounting structure of an earplug with which the earplug can be changed easily and quickly without exerting a discomfort on the ear. SOLUTION: The mounting structure of the earplug 1 is that the earplug 1 is movably attached to an approximate lower end of a pullout string 2 which is pulled out from a holder fixed on a headgear such as a helmet and locked temporarily. A stopper 3 is fixed on the approximate lower end of the above pullout string 2. An attachment ring 4 is connected to the above earplug 1 through the connection string 2. The above pullout string 2 is inserted through the attachment ring 4. At least either the above attachment ring 4 or the stopper 3 is made of a flexible material. COPYRIGHT: (C)2004,JPO&NCIPI |
