Patent ID: 7556529

Claim:
A coaxial connector connected to a leading end of a coaxial cable and detachably connected to a receptacle, the coaxial connector comprising: a substantially cylindrical housing including a spring portion having a projection at a leading end thereof, the projection being arranged to be fitted in a groove provided on an outer peripheral portion of an outer conductor of the receptacle; a substantially cylindrical bushing stored in the housing; a central conductor probe stored in the bushing so as to be in contact with an inner terminal of the receptacle; and a substantially cylindrical sleeve held on an outer peripheral portion of the housing so as to be movable in an axial direction; wherein the sleeve includes a lock piece in an upper portion and an annular portion in a lower portion, the lock piece is in elastic contact with the outer peripheral portion of the housing, and the annular portion restricts expansion of the spring portion of the housing; the housing includes a first engaging portion and a second engaging portion arranged with a predetermined space therebetween in the axial direction on the outer peripheral portion of the housing, and the lock piece engages with and disengages from the first and second engaging portions; the lock piece of the sleeve is engaged with the first engaging portion and the annular portion of the sleeve does not restrict the spring portion of the housing before the spring portion is fitted in the groove of the receptacle; the lock piece of the sleeve is engaged with the second engaging portion and the annular portion of the sleeve restricts expansion of the spring portion of the housing after the spring portion is fitted in the groove of the receptacle; and an elastic member is interposed between the housing and the sleeve, and the elastic member biases the sleeve in a direction in which the first engaging portion is engaged with the lock piece.