Patent ID: 6905254

Claim:
An optical fiber connector for receiving a fiber plug, comprising: a housing defining an inserting hole; a door being attached to the housing and moving an inlet side of the inserting hole, and comprising a protuberance; and a spring member mounted with the housing and comprising first and second contacting portion, the first contacting portion contacting with said protuberance of the door; wherein the door rotates inwardly into and is received in the inserting hole of the housing by insertion of the fiber plug in the inserting hole and at the beginning of this process the door is urged by the first contacting portion of the spring member; and when the fiber plug is pulled out from the inserting hole of the housing, two-stage spring force applied by the first and second contacting portion of the spring member against the door restores the door to its closed state to cover the inlet side of the inserting hole.