Patent ID: 8413482
Filing Date: 2013-04-09
Classification: G01N

Abstract:
1. A sensor extending in an axial direction from a front end thereof to a rear end thereof, said sensor comprising: a sensor element extending in the axial direction and comprising a plurality of electrode terminals; a plurality of terminal metal fittings pressed against and connected to respective electrode terminals of the sensor element; a terminal surrounding member made of an insulating material and having terminal holes in which the respective terminal metal fittings extend in the axial direction, so as to surround the plurality of terminal metal fittings; and a plurality of lead wires connected to the respective terminal metal fittings and which are led out from the rear end of the sensor to an outside thereof, wherein the terminal surrounding member is divided into a front side surrounding member and a rear side surrounding member in the axial direction, and a rear end face of the front side surrounding member abuts a front end face of the rear side surrounding member, and wherein the sensor comprises a fitting structure comprising a recess portion formed on one of the rear end face and the front end face and a protruding portion formed on the other of the rear end face and the front end face and fitted in the recess portion, in a state in which the rear end face of the front side surrounding member and the front end face of the rear side surrounding member abut each other, so as to prevent one of the front side surrounding member and the rear side surrounding member from rotating relative to the other of the front side surrounding member and the rear side surrounding member about an axis of the sensor, and so as to prevent one of the front side surrounding member and the rear side surrounding member from deviating in a direction perpendicular to the axis of the sensor relative to the other.