Patent ID: 7824204

Claim:
A connector comprising: a plug and a socket that are connected and integrated to each other at one end, the plug and the socket each having another end to which a connection line can be respectively connected, whereby the connection lines connected respectively to the plug and the socket are connected to each other, wherein the plug comprises: a plug body for connecting to the connection line on one end thereof and having a fitting recess on the other end thereof; a plug holder shaped in a substantially cylindrical form and configured to be freely rotatably fitted over the plug body without slipping off an outer peripheral surface of the plug body, wherein the plug holder comprises: a male screw portion formed on one end side of the outer peripheral surface of the plug holder; an annular rib for rotational operation extended from an edge portion on the one end side of the outer peripheral surface; and at least one guide groove formed in the outer peripheral surface in a shaft center direction; and a stopper fitting biased outward along the shaft center direction and configured to be freely rotatably fitted over the plug body and separately slidable in the shaft center direction, wherein the stopper fitting comprises: a ring portion; and at least one engagement pawl protruding from the ring portion toward the guide groove of the plug holder in a direction parallel to the shaft center direction, and configured to be engageable with the plug holder so that the stopper fitting is integrally rotatable with the plug holder, wherein an engagement projection is provided at a tip end of each of the at least one engagement pawl, and the socket comprises: a socket body for connecting to the connection line at one end thereof and having an insertion portion protrusively provided on the other end thereof, wherein the insertion portion is configured to fit into the fitting recess of the plug body; and a socket holder shaped in a substantially cylindrical form, and configured to be freely rotatably fitted over the socket body without slipping off the socket body and such that the socket holder rotates in an opposite direction with respect to the plug holder, wherein the socket holder comprises: L-shaped engagement grooves formed on an opening edge side of the socket holder, and configured to be engageable with the engagement projections provided at the tip end of the at least one engagement pawl of the stopper fitting; and a female screw portion formed on an inner peripheral surface of the socket holder and configured to be engageable with the male screw portion of the plug holder.