Patent ID: 7473142

Claim:
An audio jack comprising: an insulative housing ( 10 ) including four sides of a first, second, third, and fourth sides wherein the second and fourth sides are wider than the first and third side, all four sides being inclined, and coupled together forming a tapered, inclined rear end ( 13 ); and a first, second, third, and fourth grooves ( 131 , 132 , 133 , and 134 ) open toward the rear end ( 13 ) wherein the first groove ( 131 ) is disposed in the first side, the second groove ( 132 ) is disposed in the second side, the third and fourth grooves are disposed in the third side, and a lateral slot ( 12 ) terminated at an outer surface of the fourth side of the housing ( 10 ) and an internal space thereof; first, second, third, and fourth terminals ( 21 , 22 , 23 , and 24 ) disposed in the corresponding first, second, third, and fourth grooves ( 131 , 132 , 133 , and 134 ) respectively and having outer terminals ( 212 , 222 , 231 , 241 ) inclined and projected from the rear end ( 13 ); a plate ( 20 ) mounted inside the housing ( 10 ), by being inserted from the slot ( 12 ) into the housing ( 10 ), serves as a stopper for a plug ( 40 ) inserted into the housing ( 10 ); and a metal shell ( 30 ) enclosing the insulative housing ( 10 ) and including a second inclined rear end ( 31 ) and a plurality of inclined legs ( 32 ) each extending from a respective side of the second rear end ( 31 ) thereof; wherein the housing ( 10 ) further comprises two internal cavities ( 1311 , 1321 ) positioning two of the first, second, third, and fourth terminals ( 21 , 22 , 23 , and 24 ) respectively, and wherein the third and fourth terminals ( 23 and 24 ) serve as a switch upon the insertion and removal of the plug ( 40 ).