| 摘要 |
PROBLEM TO BE SOLVED: To propose a headphone device having a headphone unit that is slidable to a head band and rotatable around the longitudinal direction of the head band, and which is easy to store and carry. SOLUTION: Connection parts 23, 24 for attaching headphone units 21, 22 to both sides of a belt-like head band 11 having two metal wires 11a, 11b formed in a curved shape are constituted of a slider and a rotation engagement part. The slider is like a short column with a circular cross-section, through which the metal wires 11a, 11b pass from its end surface side to slide. The rotation engagement part is provided behind housings of the headphone units 21, 22 and rotatably engaged into the slider. The headphone units 21, 22 are slidably and rotatably attached to it by the connection parts 23, 24. COPYRIGHT: (C)2011,JPO&INPIT
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