CONTACT MEMBER FOR A GAS SENSOR, GAS SENSOR AND METHOD FOR MANUFACTURING A GAS SENSOR

摘要

To provide a gas sensor which can stably carry out a securement of an electric continuity between a sensor element and a contact member. A contact member for a gas sensor in which an electric connection to a sensor element is obtained by pinching and fixing the sensor element in an inserting port formed by a pair of housing members includes a constraint member which is provided in an outer periphery of a pair of housing members and has a constraining function of constraining a displacement of a pair of housing members within a predetermined range. The constraint member constrains a displacement of a pair of housing members within a predetermined range before the sensor element is pinched and fixed by a pair of housing members, and exists in a state of being pinched between the annular member and a pair of housing member without generating any reaction force with respect to the external force, after the sensor element is pinched and fixed.