ELECTRIC CONNECTOR AND LOCK MEMBER OF ELECTRIC CONNECTOR

PROBLEM TO BE SOLVED: To provide an electric connector and a lock member of an electric connector, which firmly maintain a coupling status while securing workability.SOLUTION: An electric connector 1 comprises: a plug connector 10; and a lock member 30. The plug connector 10 includes a conductive external conductor shell 11 electrically connected to a contact of a mating connector. The external conductor shell 11 includes a cylindrical fitting part 11a fitted to a ground contact member 103. The external diameter of the fitting part 11a is constructed so as to expand the diameter when inserting and extracting into/from the ground contact member 103. The lock member 30 includes a regulation part 32 constructed so as to regulate the expansion diameter of the fitting part 11a; and a guide part 33 that guides the movement of the regulation part 32 to the fitting part 11a. The guide part 33 guides the regulation part 32 so that it can alternately move between a regulation position for regulating the expansion diameter of the fitting part 11a and a standby position for not regulating.SELECTED DRAWING: Figure 1 【課題】作業性を担保しながら嵌合状態を強固に維持する、電気コネクタ及び電気コネクタのロック部材を提供すること。【解決手段】電気コネクタ１は、プラグコネクタ１０と、ロック部材３０と、を備え、プラグコネクタ１０は、相手方のコネクタのコンタクトに電気的に接続される導電性の外部導体シェル１１を備え、外部導体シェル１１は、グランドコンタクト部材１０３に嵌合される筒状の嵌合部１１ａを有し、嵌合部１１ａの外径は、グランドコンタクト部材１０３に対する挿抜時に拡径可能に構成されており、ロック部材３０は、嵌合部１１ａの拡径を規制可能に構成された規制部３２と、嵌合部１１ａに対する規制部３２の移動をガイドするガイド部３３と、を有し、ガイド部３３は、嵌合部１１ａの拡径の規制を行う規制位置と、規制を行わない待機位置とを相互に移動可能となるように、規制部３２をガイドする。【選択図】図１