SPEAKER USING HELMET AS COMPONENT AND HELMET HAVING SPEAKER FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a speaker using a helmet as its component which is safely used without the need for any processing and mounting on the inside and the head of the helmet, which remarkably enhances the fitting easiness and to provide the helmet having a speaker function. SOLUTION: By mounting a drive section 2 of the speaker on the outer side face of a cap body of the helmet, the cap 1 is utilized for a diaphragm of the speaker.