Sensor attachment member and sensor attachment method for rolling guide device

A sensor mounting member configured to fix a sensor to a track rail of a rolling guide device, the sensor mounting member comprising:

• a sensor holding portion configured to cover the sensor so as to hold the sensor between a top surface of the track rail and the sensor holding portion;
• a pair of leg portions, which are formed at both ends of the sensor holding portion, respectively, and extend downward along both side surfaces of the track rail, respectively;
• and
• a pair of abutment portions, each of which is formed on an inner side of each of the leg portions so as to face the track rail, and is brought into press contact with a downward inclined surface formed on the side surface of the track rail along with elastic deformation of each of the leg portions,
• wherein under a state in which the sensor mounting member is unmounted to the track rail, a distance between the pair of abutment portions is set smaller than a width of the track rail,
• wherein under a state in which the sensor mounting member is mounted to the track rail while the pair of abutment portions are pushed so as to be spread out, and then each of the pair of abutment portions is held in press contact with the downward inclined surface of the track rail, along with elastic deformation of the pair of leg portions, the sensor holding portion presses the sensor onto the top surface of the track rail,
• wherein the leg portions each include:
• a support piece extending from the sensor holding portion toward an outer side in a width direction of the track rail;
• and
• a grasping piece extending downward from the support piece so as to overlap the side surface of the track rail, and including the abutment portion formed on the inner side of each of the leg portions so as to face the track rail, and
• wherein under a state in which each of the pair of abutment portions is held in press contact with the downward inclined surface of the track rail, the support piece is elastically deformed with respect to the sensor holding portion, and the grasping piece is elastically deformed with respect to the support piece so that the sensor holding portion presses the sensor onto the track rail.