STRAP AND HEADPHONE HAVING SAME

PROBLEM TO BE SOLVED: To provide a strap (51) which includes an opening/closing part and an emergency separate part and is easily made ringed. SOLUTION: A strap includes a string-like strap (9), a first link part (7L) of one end and a second link part (7R) of another end, the first link part includes two or more first protruding portions (7Lb) protruding in axial symmetry from the end to a first shaft (CTR-L), and the second link part includes two or more second protruding portions (7Rb) protruding in axial symmetry from the end to a second shaft (CTR-R). Each of the first protruding portions includes, on its inner surface, a projecting first engage part (7Lb1) formed in a circumferential direction, and each of the second protruding portions includes, on its outer surface, a recessed second engage part (7Rb1) formed in a circumferential direction. The first link part and the second link part respectively include alignment portions (7Lt, 7Rt) which are engaged with each other to match the first shaft and the second shaft. When the first shaft and the second shaft are matched coaxially by the alignment portions, the first engage part and the second engage part are engaged with each other while allowing coaxial turning at a predetermined position in a coaxial direction and after coaxial turning at a predetermined angle, turning is canceled. COPYRIGHT: (C)2009,JPO&INPIT