Patent ID: 7156681

Claim:
A plug attaching mechanism for use in holding a portable audio device, said mechanism comprising: a plug shell provided with a connecting terminal extending therefrom and having an elastometric sleeve wrapped there around, said connecting terminal being coupled to an earphone and operable to be inserted into said portable audio device, said plug shell and said sleeve being arranged inside of a cylindrical plug cover, said plug cover having integrally formed thereon a pair of projecting portions provided on a connecting terminal side thereof; and a pair of L-shaped engaging grooves formed respectively in said pair of projecting portions for engaging respectively with a pair of engaging pieces provided on an attachment plate coupled to said portable audio device and located at a jack side that receives said connecting terminal, wherein said elastometric sleeve having a protruding portion that protrudes from the plug cover at an end thereof where said pair of projecting portions are located when the elastometric sleeve is arranged inside the plug cover, and wherein said pair of engaging pieces provided on the attachment plate located on the jack side being secured to said pair of L-shaped engaging grooves with an elasticity of said protruding portion of the elastometric sleeve when said portable audio device is engaged.