Patent ID: 6728388
Filing Date: 2004-04-27
Classification: H04R

Abstract:
An ear-hanging type headphone comprising:a headphone body portion having a speaker unit built therein and a sound production section of said speaker unit on a front side, with a back side being covered with a convex housing section; a rotation shaft portion movably mounted on the housing section and having a central axis thereof offset from a central axis of the convex housing section by an eccentric angle of 45 degrees; and an ear hanger arm portion supported by the rotation shaft portion and located on the sound production section side, whereby upon moving the rotation shaft portion relative to the convex housing portion a distance between the ear hanger arm portion and the front side of the headphone body portion is altered, wherein a slot is formed in the convex housing section and the rotation shaft portion is movable from one end of the slot to another end of the slot and the rotation shaft portion includes a spring for biasing the rotation shaft portion toward the one end of the slot.