Connector with plug and socket

A connector having a socket and a plug mutually connected axially,

• wherein the socket comprises:
• a cylindrical portion provided in a part of a body of the socket and having a hole;
• a center pin provided in a center of the body of the socket and protruding axially into the hole,
• a cam follower provided on the cylindrical portion;
• a pointed projection provided on the cam follower in parallel with the center pin, there is only one pointed projection in the connector as a whole;
• and
• a plurality of optical connector pins provided in the body of the socket surround the center pin and axially extending into the hole,
• wherein the plug comprises:
• a body of the plug which is rotationally supported in a gripper tube;
• a circular receiving portion formed in the body of the plug, in which the cylindrical portion fits rotationally;
• and
• an insertion member provided inside the annular receiving portion,
• wherein the insertion member comprises:
• a tilted cam surface on the outer surface of insertion member;
• a pin-receiving hole provided at a center of the plug for receiving the center pin;
• and
• a plurality of optical contactors provided in the plug on the radial outside of the pin-receiving hole, for receiving the plurality of optical connector pins respectively,
• wherein the tilted cam surface comprises:
• a tip end, inclined cam surfaces and an entry groove, there is only one tip end and only one entry groove in the plug as a whole,
• wherein the inclined cam surfaces are inclined with respect to the central axis of the body of the plug, and constituted by a pair of inclined surfaces continuous from the only one tip end to the only one entry groove via both outer surface sides of the insertion member,
• wherein, when the circumferential relative position of the body of the plug with respect to the body of the socket is in a normal positional relationship, the entry groove is configured to allow the pointed projection to enter into the entry groove, and
• wherein, at the normal position of the plug with respect to the socket, the pointed projection of the cam follower is inserted into the entry groove, and each of the optical connector pins is connected to the optical contactor, respectively.