CONNECTOR

PROBLEM TO BE SOLVED: To enhance holding power of a terminal without upsizing a connector.SOLUTION: A connector includes: a housing 5 forming a terminal storage chamber 39 for storing a terminal 3; a lock member 9 having a claw portion 77 to be locked on a step portion 27 formed on an outer peripheral surface of the terminal and an arm portion 73 for supporting the claw portion; and a circular arc-shaped aperture 53 formed on a front wall 49 of the terminal storage chamber and allowing the lock member to be movably inserted along an inner wall 63 of the terminal storage chamber. A wall 63 for regulating rear side deformation of the arm portion 73 of the lock member 9 and a recess 67 for allowing the rear side deformation of the arm portion 73 are formed on the inner wall of the terminal storage chamber in a state being shifted each other in a peripheral direction.SELECTED DRAWING: Figure 1 【課題】コネクタを大型化することなく、端子の保持力を高めること。【解決手段】端子３を収容する端子収容室３９が形成されたハウジング５と、端子の外周面の段部２７に係止される爪部７７と爪部を支持するアーム部７３とを有するロック部材９と、端子収容室の前壁４９に形成され、ロック部材が端子収容室の内壁６３に沿って移動可能に挿入される円弧状の開口部５３とを備える。端子収容室の内壁は、ロック部材９のアーム部７３の背面側の変形を規制する壁６３と、アーム部７３の背面側の変形を許容する凹所６７とが、周方向に位置をずらして設けられる。【選択図】図１