Adjustment tool for ear straps when wearing a mask

摘要

PROBLEM TO BE SOLVED: To provide an adjusting tool which prevents an ear hook string from digging into the vicinity of a root part on the back side of an ear when a mask is worn. SOLUTION: Two strings 1a, 1b are provided with connecting tools 2a, 2b connected to ear hook strings 9a, 9b at their tips, and a slider 3 which slides along both strings is attached. There is an appropriate amount of friction between the slider 3 and the strings 1a and 1b so that the slider 3 and the cords 1a and 1b can be stopped by sliding the slider 3 toward the coupler. The length between them becomes short so that the ear hook strings 9a and 9b can be pulled. [Selection diagram] Fig. 4