Patent ID: 6908343
Filing Date: 2005-06-21
Classification: H01R,Y10S

Abstract:
1. An earphone jack comprising: an insulative housing having opposite front and rear ends and formed with a plug insertion hole that extends from said front end to said rear end, said plug insertion hole having a front hole section adjacent to said front end of said insulative housing, and a rear hole section adjacent to said rear end of said insulative housing, said rear hole section being larger than said front hole section, said insulative housing having a top wall that extends from said front end to said rear end of said insulative housing, and first and second lateral walls disposed on opposite lateral sides of said top wall, said insulative housing being formed with a first contact mounting portion adjacent to said front end of said insulative housing, and a second contact mounting portion between said first contact mounting portion and said rear end of said insulative housing, said first contact mounting portion being formed with a U-shaped first contact mounting groove that has a top groove portion formed in said top wall of said insulative housing, and first and second lateral groove portions extending from said top groove portion and formed respectively in said first and second lateral walls of said insulative housing, said top groove portion of said first contact mounting groove being in spatial communication with said front hole section of said plug insertion hole, said second contact mounting portion being formed with a U-shaped second contact mounting groove that has a top groove portion formed in said top wall of said insulative housing, and first and second lateral groove portions extending from said top groove portion of said second contact mounting groove and formed respectively in said second and first lateral walls of said insulative housing, said top groove portion of said second contact mounting groove being in spatial communication with said front hole section of said plug insertion hole; a conductive first contact member mounted on said insulative housing at said first contact mounting portion, said first contact member including a conductive second contact member mounted on said insulative housing at said second contact mounting portion, said second contact member including a conductive third contact member having a pair of prongs that extend into said rear hole section through said rear end of said insulative housing; wherein said top wall of said insulative housing is formed with a pair of engaging holes proximate to said rear end of said insulative housing, each of said prongs of said third contact member being substantially flat and being formed with an engaging tab that engages a respective one of said engaging holes; and wherein said flat prongs are in a same plane and form a plug insertion space therebetween for receiving an end portion of a mating plug and have distal end parts contoured inwardly to form restricted access into said plug insertion space.